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/tags/rel_26/or1200/rtl/verilog/or1200_du.v
0,0 → 1,1865
//////////////////////////////////////////////////////////////////////
//// ////
//// OR1200's Debug Unit ////
//// ////
//// This file is part of the OpenRISC 1200 project ////
//// http://www.opencores.org/cores/or1k/ ////
//// ////
//// Description ////
//// Basic OR1200 debug unit. ////
//// ////
//// To Do: ////
//// - make it smaller and faster ////
//// ////
//// Author(s): ////
//// - Damjan Lampret, lampret@opencores.org ////
//// ////
//////////////////////////////////////////////////////////////////////
//// ////
//// Copyright (C) 2000 Authors and OPENCORES.ORG ////
//// ////
//// This source file may be used and distributed without ////
//// restriction provided that this copyright statement is not ////
//// removed from the file and that any derivative work contains ////
//// the original copyright notice and the associated disclaimer. ////
//// ////
//// This source file is free software; you can redistribute it ////
//// and/or modify it under the terms of the GNU Lesser General ////
//// Public License as published by the Free Software Foundation; ////
//// either version 2.1 of the License, or (at your option) any ////
//// later version. ////
//// ////
//// This source is distributed in the hope that it will be ////
//// useful, but WITHOUT ANY WARRANTY; without even the implied ////
//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR ////
//// PURPOSE. See the GNU Lesser General Public License for more ////
//// details. ////
//// ////
//// You should have received a copy of the GNU Lesser General ////
//// Public License along with this source; if not, download it ////
//// from http://www.opencores.org/lgpl.shtml ////
//// ////
//////////////////////////////////////////////////////////////////////
//
// CVS Revision History
//
// $Log: not supported by cvs2svn $
// Revision 1.9.4.3 2004/01/18 10:08:00 simons
// Error fixed.
//
// Revision 1.9.4.2 2004/01/17 21:14:14 simons
// Errors fixed.
//
// Revision 1.9.4.1 2004/01/15 06:46:38 markom
// interface to debug changed; no more opselect; stb-ack protocol
//
// Revision 1.9 2003/01/22 03:23:47 lampret
// Updated sensitivity list for trace buffer [only relevant for Xilinx FPGAs]
//
// Revision 1.8 2002/09/08 19:31:52 lampret
// Fixed a typo, reported by Taylor Su.
//
// Revision 1.7 2002/07/14 22:17:17 lampret
// Added simple trace buffer [only for Xilinx Virtex target]. Fixed instruction fetch abort when new exception is recognized.
//
// Revision 1.6 2002/03/14 00:30:24 lampret
// Added alternative for critical path in DU.
//
// Revision 1.5 2002/02/11 04:33:17 lampret
// Speed optimizations (removed duplicate _cyc_ and _stb_). Fixed D/IMMU cache-inhibit attr.
//
// Revision 1.4 2002/01/28 01:16:00 lampret
// Changed 'void' nop-ops instead of insn[0] to use insn[16]. Debug unit stalls the tick timer. Prepared new flag generation for add and and insns. Blocked DC/IC while they are turned off. Fixed I/D MMU SPRs layout except WAYs. TODO: smart IC invalidate, l.j 2 and TLB ways.
//
// Revision 1.3 2002/01/18 07:56:00 lampret
// No more low/high priority interrupts (PICPR removed). Added tick timer exception. Added exception prefix (SR[EPH]). Fixed single-step bug whenreading NPC.
//
// Revision 1.2 2002/01/14 06:18:22 lampret
// Fixed mem2reg bug in FAST implementation. Updated debug unit to work with new genpc/if.
//
// Revision 1.1 2002/01/03 08:16:15 lampret
// New prefixes for RTL files, prefixed module names. Updated cache controllers and MMUs.
//
// Revision 1.12 2001/11/30 18:58:00 simons
// Trap insn couses break after exits ex_insn.
//
// Revision 1.11 2001/11/23 08:38:51 lampret
// Changed DSR/DRR behavior and exception detection.
//
// Revision 1.10 2001/11/20 21:25:44 lampret
// Fixed dbg_is_o assignment width.
//
// Revision 1.9 2001/11/20 18:46:14 simons
// Break point bug fixed
//
// Revision 1.8 2001/11/18 08:36:28 lampret
// For GDB changed single stepping and disabled trap exception.
//
// Revision 1.7 2001/10/21 18:09:53 lampret
// Fixed sensitivity list.
//
// Revision 1.6 2001/10/14 13:12:09 lampret
// MP3 version.
//
//
 
// synopsys translate_off
`include "timescale.v"
// synopsys translate_on
`include "or1200_defines.v"
 
//
// Debug unit
//
 
module or1200_du(
// RISC Internal Interface
clk, rst,
dcpu_cycstb_i, dcpu_we_i, dcpu_adr_i, dcpu_dat_lsu,
dcpu_dat_dc, icpu_cycstb_i,
ex_freeze, branch_op, ex_insn, id_pc,
spr_dat_npc, rf_dataw,
du_dsr, du_stall, du_addr, du_dat_i, du_dat_o,
du_read, du_write, du_except, du_hwbkpt,
spr_cs, spr_write, spr_addr, spr_dat_i, spr_dat_o,
 
// External Debug Interface
dbg_stall_i, dbg_ewt_i, dbg_lss_o, dbg_is_o, dbg_wp_o, dbg_bp_o,
dbg_stb_i, dbg_we_i, dbg_adr_i, dbg_dat_i, dbg_dat_o, dbg_ack_o
);
 
parameter dw = `OR1200_OPERAND_WIDTH;
parameter aw = `OR1200_OPERAND_WIDTH;
 
//
// I/O
//
 
//
// RISC Internal Interface
//
input clk; // Clock
input rst; // Reset
input dcpu_cycstb_i; // LSU status
input dcpu_we_i; // LSU status
input [31:0] dcpu_adr_i; // LSU addr
input [31:0] dcpu_dat_lsu; // LSU store data
input [31:0] dcpu_dat_dc; // LSU load data
input [`OR1200_FETCHOP_WIDTH-1:0] icpu_cycstb_i; // IFETCH unit status
input ex_freeze; // EX stage freeze
input [`OR1200_BRANCHOP_WIDTH-1:0] branch_op; // Branch op
input [dw-1:0] ex_insn; // EX insn
input [31:0] id_pc; // insn fetch EA
input [31:0] spr_dat_npc; // Next PC (for trace)
input [31:0] rf_dataw; // ALU result (for trace)
output [`OR1200_DU_DSR_WIDTH-1:0] du_dsr; // DSR
output du_stall; // Debug Unit Stall
output [aw-1:0] du_addr; // Debug Unit Address
input [dw-1:0] du_dat_i; // Debug Unit Data In
output [dw-1:0] du_dat_o; // Debug Unit Data Out
output du_read; // Debug Unit Read Enable
output du_write; // Debug Unit Write Enable
input [12:0] du_except; // Exception masked by DSR
output du_hwbkpt; // Cause trap exception (HW Breakpoints)
input spr_cs; // SPR Chip Select
input spr_write; // SPR Read/Write
input [aw-1:0] spr_addr; // SPR Address
input [dw-1:0] spr_dat_i; // SPR Data Input
output [dw-1:0] spr_dat_o; // SPR Data Output
 
//
// External Debug Interface
//
input dbg_stall_i; // External Stall Input
input dbg_ewt_i; // External Watchpoint Trigger Input
output [3:0] dbg_lss_o; // External Load/Store Unit Status
output [1:0] dbg_is_o; // External Insn Fetch Status
output [10:0] dbg_wp_o; // Watchpoints Outputs
output dbg_bp_o; // Breakpoint Output
input dbg_stb_i; // External Address/Data Strobe
input dbg_we_i; // External Write Enable
input [aw-1:0] dbg_adr_i; // External Address Input
input [dw-1:0] dbg_dat_i; // External Data Input
output [dw-1:0] dbg_dat_o; // External Data Output
output dbg_ack_o; // External Data Acknowledge (not WB compatible)
 
 
//
// Some connections go directly from the CPU through DU to Debug I/F
//
`ifdef OR1200_DU_STATUS_UNIMPLEMENTED
assign dbg_lss_o = 4'b0000;
 
reg [1:0] dbg_is_o;
//
// Show insn activity (temp, must be removed)
//
always @(posedge clk or posedge rst)
if (rst)
dbg_is_o <= #1 2'b00;
else if (!ex_freeze &
~((ex_insn[31:26] == `OR1200_OR32_NOP) & ex_insn[16]))
dbg_is_o <= #1 ~dbg_is_o;
`ifdef UNUSED
assign dbg_is_o = 2'b00;
`endif
`else
assign dbg_lss_o = dcpu_cycstb_i ? {dcpu_we_i, 3'b000} : 4'b0000;
assign dbg_is_o = {1'b0, icpu_cycstb_i};
`endif
assign dbg_wp_o = 11'b000_0000_0000;
assign dbg_dat_o = du_dat_i;
 
//
// Some connections go directly from Debug I/F through DU to the CPU
//
assign du_stall = dbg_stall_i;
assign du_addr = dbg_adr_i;
assign du_dat_o = dbg_dat_i;
assign du_read = dbg_stb_i && !dbg_we_i;
assign du_write = dbg_stb_i && dbg_we_i;
 
//
// Generate acknowledge -- just delay stb signal
//
reg dbg_ack_o;
always @(posedge clk or posedge rst)
if (rst)
dbg_ack_o <= #1 1'b0;
else
dbg_ack_o <= #1 dbg_stb_i;
 
`ifdef OR1200_DU_IMPLEMENTED
 
//
// Debug Mode Register 1
//
`ifdef OR1200_DU_DMR1
reg [24:0] dmr1; // DMR1 implemented
`else
wire [24:0] dmr1; // DMR1 not implemented
`endif
 
//
// Debug Mode Register 2
//
`ifdef OR1200_DU_DMR2
reg [23:0] dmr2; // DMR2 implemented
`else
wire [23:0] dmr2; // DMR2 not implemented
`endif
 
//
// Debug Stop Register
//
`ifdef OR1200_DU_DSR
reg [`OR1200_DU_DSR_WIDTH-1:0] dsr; // DSR implemented
`else
wire [`OR1200_DU_DSR_WIDTH-1:0] dsr; // DSR not implemented
`endif
 
//
// Debug Reason Register
//
`ifdef OR1200_DU_DRR
reg [13:0] drr; // DRR implemented
`else
wire [13:0] drr; // DRR not implemented
`endif
 
//
// Debug Value Register N
//
`ifdef OR1200_DU_DVR0
reg [31:0] dvr0;
`else
wire [31:0] dvr0;
`endif
 
//
// Debug Value Register N
//
`ifdef OR1200_DU_DVR1
reg [31:0] dvr1;
`else
wire [31:0] dvr1;
`endif
 
//
// Debug Value Register N
//
`ifdef OR1200_DU_DVR2
reg [31:0] dvr2;
`else
wire [31:0] dvr2;
`endif
 
//
// Debug Value Register N
//
`ifdef OR1200_DU_DVR3
reg [31:0] dvr3;
`else
wire [31:0] dvr3;
`endif
 
//
// Debug Value Register N
//
`ifdef OR1200_DU_DVR4
reg [31:0] dvr4;
`else
wire [31:0] dvr4;
`endif
 
//
// Debug Value Register N
//
`ifdef OR1200_DU_DVR5
reg [31:0] dvr5;
`else
wire [31:0] dvr5;
`endif
 
//
// Debug Value Register N
//
`ifdef OR1200_DU_DVR6
reg [31:0] dvr6;
`else
wire [31:0] dvr6;
`endif
 
//
// Debug Value Register N
//
`ifdef OR1200_DU_DVR7
reg [31:0] dvr7;
`else
wire [31:0] dvr7;
`endif
 
//
// Debug Control Register N
//
`ifdef OR1200_DU_DCR0
reg [7:0] dcr0;
`else
wire [7:0] dcr0;
`endif
 
//
// Debug Control Register N
//
`ifdef OR1200_DU_DCR1
reg [7:0] dcr1;
`else
wire [7:0] dcr1;
`endif
 
//
// Debug Control Register N
//
`ifdef OR1200_DU_DCR2
reg [7:0] dcr2;
`else
wire [7:0] dcr2;
`endif
 
//
// Debug Control Register N
//
`ifdef OR1200_DU_DCR3
reg [7:0] dcr3;
`else
wire [7:0] dcr3;
`endif
 
//
// Debug Control Register N
//
`ifdef OR1200_DU_DCR4
reg [7:0] dcr4;
`else
wire [7:0] dcr4;
`endif
 
//
// Debug Control Register N
//
`ifdef OR1200_DU_DCR5
reg [7:0] dcr5;
`else
wire [7:0] dcr5;
`endif
 
//
// Debug Control Register N
//
`ifdef OR1200_DU_DCR6
reg [7:0] dcr6;
`else
wire [7:0] dcr6;
`endif
 
//
// Debug Control Register N
//
`ifdef OR1200_DU_DCR7
reg [7:0] dcr7;
`else
wire [7:0] dcr7;
`endif
 
//
// Debug Watchpoint Counter Register 0
//
`ifdef OR1200_DU_DWCR0
reg [31:0] dwcr0;
`else
wire [31:0] dwcr0;
`endif
 
//
// Debug Watchpoint Counter Register 1
//
`ifdef OR1200_DU_DWCR1
reg [31:0] dwcr1;
`else
wire [31:0] dwcr1;
`endif
 
//
// Internal wires
//
wire dmr1_sel; // DMR1 select
wire dmr2_sel; // DMR2 select
wire dsr_sel; // DSR select
wire drr_sel; // DRR select
wire dvr0_sel,
dvr1_sel,
dvr2_sel,
dvr3_sel,
dvr4_sel,
dvr5_sel,
dvr6_sel,
dvr7_sel; // DVR selects
wire dcr0_sel,
dcr1_sel,
dcr2_sel,
dcr3_sel,
dcr4_sel,
dcr5_sel,
dcr6_sel,
dcr7_sel; // DCR selects
wire dwcr0_sel,
dwcr1_sel; // DWCR selects
reg dbg_bp_r;
`ifdef OR1200_DU_HWBKPTS
reg [31:0] match_cond0_ct;
reg [31:0] match_cond1_ct;
reg [31:0] match_cond2_ct;
reg [31:0] match_cond3_ct;
reg [31:0] match_cond4_ct;
reg [31:0] match_cond5_ct;
reg [31:0] match_cond6_ct;
reg [31:0] match_cond7_ct;
reg match_cond0_stb;
reg match_cond1_stb;
reg match_cond2_stb;
reg match_cond3_stb;
reg match_cond4_stb;
reg match_cond5_stb;
reg match_cond6_stb;
reg match_cond7_stb;
reg match0;
reg match1;
reg match2;
reg match3;
reg match4;
reg match5;
reg match6;
reg match7;
reg wpcntr0_match;
reg wpcntr1_match;
reg incr_wpcntr0;
reg incr_wpcntr1;
reg [10:0] wp;
`endif
wire du_hwbkpt;
`ifdef OR1200_DU_READREGS
reg [31:0] spr_dat_o;
`endif
reg [13:0] except_stop; // Exceptions that stop because of DSR
`ifdef OR1200_DU_TB_IMPLEMENTED
wire tb_enw;
reg [7:0] tb_wadr;
reg [31:0] tb_timstmp;
`endif
wire [31:0] tbia_dat_o;
wire [31:0] tbim_dat_o;
wire [31:0] tbar_dat_o;
wire [31:0] tbts_dat_o;
 
//
// DU registers address decoder
//
`ifdef OR1200_DU_DMR1
assign dmr1_sel = (spr_cs && (spr_addr[`OR1200_DUOFS_BITS] == `OR1200_DU_DMR1));
`endif
`ifdef OR1200_DU_DMR2
assign dmr2_sel = (spr_cs && (spr_addr[`OR1200_DUOFS_BITS] == `OR1200_DU_DMR2));
`endif
`ifdef OR1200_DU_DSR
assign dsr_sel = (spr_cs && (spr_addr[`OR1200_DUOFS_BITS] == `OR1200_DU_DSR));
`endif
`ifdef OR1200_DU_DRR
assign drr_sel = (spr_cs && (spr_addr[`OR1200_DUOFS_BITS] == `OR1200_DU_DRR));
`endif
`ifdef OR1200_DU_DVR0
assign dvr0_sel = (spr_cs && (spr_addr[`OR1200_DUOFS_BITS] == `OR1200_DU_DVR0));
`endif
`ifdef OR1200_DU_DVR1
assign dvr1_sel = (spr_cs && (spr_addr[`OR1200_DUOFS_BITS] == `OR1200_DU_DVR1));
`endif
`ifdef OR1200_DU_DVR2
assign dvr2_sel = (spr_cs && (spr_addr[`OR1200_DUOFS_BITS] == `OR1200_DU_DVR2));
`endif
`ifdef OR1200_DU_DVR3
assign dvr3_sel = (spr_cs && (spr_addr[`OR1200_DUOFS_BITS] == `OR1200_DU_DVR3));
`endif
`ifdef OR1200_DU_DVR4
assign dvr4_sel = (spr_cs && (spr_addr[`OR1200_DUOFS_BITS] == `OR1200_DU_DVR4));
`endif
`ifdef OR1200_DU_DVR5
assign dvr5_sel = (spr_cs && (spr_addr[`OR1200_DUOFS_BITS] == `OR1200_DU_DVR5));
`endif
`ifdef OR1200_DU_DVR6
assign dvr6_sel = (spr_cs && (spr_addr[`OR1200_DUOFS_BITS] == `OR1200_DU_DVR6));
`endif
`ifdef OR1200_DU_DVR7
assign dvr7_sel = (spr_cs && (spr_addr[`OR1200_DUOFS_BITS] == `OR1200_DU_DVR7));
`endif
`ifdef OR1200_DU_DCR0
assign dcr0_sel = (spr_cs && (spr_addr[`OR1200_DUOFS_BITS] == `OR1200_DU_DCR0));
`endif
`ifdef OR1200_DU_DCR1
assign dcr1_sel = (spr_cs && (spr_addr[`OR1200_DUOFS_BITS] == `OR1200_DU_DCR1));
`endif
`ifdef OR1200_DU_DCR2
assign dcr2_sel = (spr_cs && (spr_addr[`OR1200_DUOFS_BITS] == `OR1200_DU_DCR2));
`endif
`ifdef OR1200_DU_DCR3
assign dcr3_sel = (spr_cs && (spr_addr[`OR1200_DUOFS_BITS] == `OR1200_DU_DCR3));
`endif
`ifdef OR1200_DU_DCR4
assign dcr4_sel = (spr_cs && (spr_addr[`OR1200_DUOFS_BITS] == `OR1200_DU_DCR4));
`endif
`ifdef OR1200_DU_DCR5
assign dcr5_sel = (spr_cs && (spr_addr[`OR1200_DUOFS_BITS] == `OR1200_DU_DCR5));
`endif
`ifdef OR1200_DU_DCR6
assign dcr6_sel = (spr_cs && (spr_addr[`OR1200_DUOFS_BITS] == `OR1200_DU_DCR6));
`endif
`ifdef OR1200_DU_DCR7
assign dcr7_sel = (spr_cs && (spr_addr[`OR1200_DUOFS_BITS] == `OR1200_DU_DCR7));
`endif
`ifdef OR1200_DU_DWCR0
assign dwcr0_sel = (spr_cs && (spr_addr[`OR1200_DUOFS_BITS] == `OR1200_DU_DWCR0));
`endif
`ifdef OR1200_DU_DWCR1
assign dwcr1_sel = (spr_cs && (spr_addr[`OR1200_DUOFS_BITS] == `OR1200_DU_DWCR1));
`endif
 
//
// Decode started exception
//
always @(du_except) begin
except_stop = 14'b0000_0000_0000;
casex (du_except)
13'b1_xxxx_xxxx_xxxx:
except_stop[`OR1200_DU_DRR_TTE] = 1'b1;
13'b0_1xxx_xxxx_xxxx: begin
except_stop[`OR1200_DU_DRR_IE] = 1'b1;
end
13'b0_01xx_xxxx_xxxx: begin
except_stop[`OR1200_DU_DRR_IME] = 1'b1;
end
13'b0_001x_xxxx_xxxx:
except_stop[`OR1200_DU_DRR_IPFE] = 1'b1;
13'b0_0001_xxxx_xxxx: begin
except_stop[`OR1200_DU_DRR_BUSEE] = 1'b1;
end
13'b0_0000_1xxx_xxxx:
except_stop[`OR1200_DU_DRR_IIE] = 1'b1;
13'b0_0000_01xx_xxxx: begin
except_stop[`OR1200_DU_DRR_AE] = 1'b1;
end
13'b0_0000_001x_xxxx: begin
except_stop[`OR1200_DU_DRR_DME] = 1'b1;
end
13'b0_0000_0001_xxxx:
except_stop[`OR1200_DU_DRR_DPFE] = 1'b1;
13'b0_0000_0000_1xxx:
except_stop[`OR1200_DU_DRR_BUSEE] = 1'b1;
13'b0_0000_0000_01xx: begin
except_stop[`OR1200_DU_DRR_RE] = 1'b1;
end
13'b0_0000_0000_001x: begin
except_stop[`OR1200_DU_DRR_TE] = 1'b1;
end
13'b0_0000_0000_0001:
except_stop[`OR1200_DU_DRR_SCE] = 1'b1;
default:
except_stop = 14'b0000_0000_0000;
endcase
end
 
//
// dbg_bp_o is registered
//
assign dbg_bp_o = dbg_bp_r;
 
//
// Breakpoint activation register
//
always @(posedge clk or posedge rst)
if (rst)
dbg_bp_r <= #1 1'b0;
else if (!ex_freeze)
dbg_bp_r <= #1 |except_stop
`ifdef OR1200_DU_DMR1_ST
| ~((ex_insn[31:26] == `OR1200_OR32_NOP) & ex_insn[16]) & dmr1[`OR1200_DU_DMR1_ST]
`endif
`ifdef OR1200_DU_DMR1_BT
| (branch_op != `OR1200_BRANCHOP_NOP) & dmr1[`OR1200_DU_DMR1_BT]
`endif
;
else
dbg_bp_r <= #1 |except_stop;
 
//
// Write to DMR1
//
`ifdef OR1200_DU_DMR1
always @(posedge clk or posedge rst)
if (rst)
dmr1 <= 25'h000_0000;
else if (dmr1_sel && spr_write)
`ifdef OR1200_DU_HWBKPTS
dmr1 <= #1 spr_dat_i[24:0];
`else
dmr1 <= #1 {1'b0, spr_dat_i[23:22], 22'h00_0000};
`endif
`else
assign dmr1 = 25'h000_0000;
`endif
 
//
// Write to DMR2
//
`ifdef OR1200_DU_DMR2
always @(posedge clk or posedge rst)
if (rst)
dmr2 <= 24'h00_0000;
else if (dmr2_sel && spr_write)
dmr2 <= #1 spr_dat_i[23:0];
`else
assign dmr2 = 24'h00_0000;
`endif
 
//
// Write to DSR
//
`ifdef OR1200_DU_DSR
always @(posedge clk or posedge rst)
if (rst)
dsr <= {`OR1200_DU_DSR_WIDTH{1'b0}};
else if (dsr_sel && spr_write)
dsr <= #1 spr_dat_i[`OR1200_DU_DSR_WIDTH-1:0];
`else
assign dsr = {`OR1200_DU_DSR_WIDTH{1'b0}};
`endif
 
//
// Write to DRR
//
`ifdef OR1200_DU_DRR
always @(posedge clk or posedge rst)
if (rst)
drr <= 14'b0;
else if (drr_sel && spr_write)
drr <= #1 spr_dat_i[13:0];
else
drr <= #1 drr | except_stop;
`else
assign drr = 14'b0;
`endif
 
//
// Write to DVR0
//
`ifdef OR1200_DU_DVR0
always @(posedge clk or posedge rst)
if (rst)
dvr0 <= 32'h0000_0000;
else if (dvr0_sel && spr_write)
dvr0 <= #1 spr_dat_i[31:0];
`else
assign dvr0 = 32'h0000_0000;
`endif
 
//
// Write to DVR1
//
`ifdef OR1200_DU_DVR1
always @(posedge clk or posedge rst)
if (rst)
dvr1 <= 32'h0000_0000;
else if (dvr1_sel && spr_write)
dvr1 <= #1 spr_dat_i[31:0];
`else
assign dvr1 = 32'h0000_0000;
`endif
 
//
// Write to DVR2
//
`ifdef OR1200_DU_DVR2
always @(posedge clk or posedge rst)
if (rst)
dvr2 <= 32'h0000_0000;
else if (dvr2_sel && spr_write)
dvr2 <= #1 spr_dat_i[31:0];
`else
assign dvr2 = 32'h0000_0000;
`endif
 
//
// Write to DVR3
//
`ifdef OR1200_DU_DVR3
always @(posedge clk or posedge rst)
if (rst)
dvr3 <= 32'h0000_0000;
else if (dvr3_sel && spr_write)
dvr3 <= #1 spr_dat_i[31:0];
`else
assign dvr3 = 32'h0000_0000;
`endif
 
//
// Write to DVR4
//
`ifdef OR1200_DU_DVR4
always @(posedge clk or posedge rst)
if (rst)
dvr4 <= 32'h0000_0000;
else if (dvr4_sel && spr_write)
dvr4 <= #1 spr_dat_i[31:0];
`else
assign dvr4 = 32'h0000_0000;
`endif
 
//
// Write to DVR5
//
`ifdef OR1200_DU_DVR5
always @(posedge clk or posedge rst)
if (rst)
dvr5 <= 32'h0000_0000;
else if (dvr5_sel && spr_write)
dvr5 <= #1 spr_dat_i[31:0];
`else
assign dvr5 = 32'h0000_0000;
`endif
 
//
// Write to DVR6
//
`ifdef OR1200_DU_DVR6
always @(posedge clk or posedge rst)
if (rst)
dvr6 <= 32'h0000_0000;
else if (dvr6_sel && spr_write)
dvr6 <= #1 spr_dat_i[31:0];
`else
assign dvr6 = 32'h0000_0000;
`endif
 
//
// Write to DVR7
//
`ifdef OR1200_DU_DVR7
always @(posedge clk or posedge rst)
if (rst)
dvr7 <= 32'h0000_0000;
else if (dvr7_sel && spr_write)
dvr7 <= #1 spr_dat_i[31:0];
`else
assign dvr7 = 32'h0000_0000;
`endif
 
//
// Write to DCR0
//
`ifdef OR1200_DU_DCR0
always @(posedge clk or posedge rst)
if (rst)
dcr0 <= 8'h00;
else if (dcr0_sel && spr_write)
dcr0 <= #1 spr_dat_i[7:0];
`else
assign dcr0 = 8'h00;
`endif
 
//
// Write to DCR1
//
`ifdef OR1200_DU_DCR1
always @(posedge clk or posedge rst)
if (rst)
dcr1 <= 8'h00;
else if (dcr1_sel && spr_write)
dcr1 <= #1 spr_dat_i[7:0];
`else
assign dcr1 = 8'h00;
`endif
 
//
// Write to DCR2
//
`ifdef OR1200_DU_DCR2
always @(posedge clk or posedge rst)
if (rst)
dcr2 <= 8'h00;
else if (dcr2_sel && spr_write)
dcr2 <= #1 spr_dat_i[7:0];
`else
assign dcr2 = 8'h00;
`endif
 
//
// Write to DCR3
//
`ifdef OR1200_DU_DCR3
always @(posedge clk or posedge rst)
if (rst)
dcr3 <= 8'h00;
else if (dcr3_sel && spr_write)
dcr3 <= #1 spr_dat_i[7:0];
`else
assign dcr3 = 8'h00;
`endif
 
//
// Write to DCR4
//
`ifdef OR1200_DU_DCR4
always @(posedge clk or posedge rst)
if (rst)
dcr4 <= 8'h00;
else if (dcr4_sel && spr_write)
dcr4 <= #1 spr_dat_i[7:0];
`else
assign dcr4 = 8'h00;
`endif
 
//
// Write to DCR5
//
`ifdef OR1200_DU_DCR5
always @(posedge clk or posedge rst)
if (rst)
dcr5 <= 8'h00;
else if (dcr5_sel && spr_write)
dcr5 <= #1 spr_dat_i[7:0];
`else
assign dcr5 = 8'h00;
`endif
 
//
// Write to DCR6
//
`ifdef OR1200_DU_DCR6
always @(posedge clk or posedge rst)
if (rst)
dcr6 <= 8'h00;
else if (dcr6_sel && spr_write)
dcr6 <= #1 spr_dat_i[7:0];
`else
assign dcr6 = 8'h00;
`endif
 
//
// Write to DCR7
//
`ifdef OR1200_DU_DCR7
always @(posedge clk or posedge rst)
if (rst)
dcr7 <= 8'h00;
else if (dcr7_sel && spr_write)
dcr7 <= #1 spr_dat_i[7:0];
`else
assign dcr7 = 8'h00;
`endif
 
//
// Write to DWCR0
//
`ifdef OR1200_DU_DWCR0
always @(posedge clk or posedge rst)
if (rst)
dwcr0 <= 32'h0000_0000;
else if (dwcr0_sel && spr_write)
dwcr0 <= #1 spr_dat_i[31:0];
else if (incr_wpcntr0)
dwcr0[`OR1200_DU_DWCR_COUNT] <= #1 dwcr0[`OR1200_DU_DWCR_COUNT] + 16'h0001;
`else
assign dwcr0 = 32'h0000_0000;
`endif
 
//
// Write to DWCR1
//
`ifdef OR1200_DU_DWCR1
always @(posedge clk or posedge rst)
if (rst)
dwcr1 <= 32'h0000_0000;
else if (dwcr1_sel && spr_write)
dwcr1 <= #1 spr_dat_i[31:0];
else if (incr_wpcntr1)
dwcr1[`OR1200_DU_DWCR_COUNT] <= #1 dwcr1[`OR1200_DU_DWCR_COUNT] + 16'h0001;
`else
assign dwcr1 = 32'h0000_0000;
`endif
 
//
// Read DU registers
//
`ifdef OR1200_DU_READREGS
always @(spr_addr or dsr or drr or dmr1 or dmr2
or dvr0 or dvr1 or dvr2 or dvr3 or dvr4
or dvr5 or dvr6 or dvr7
or dcr0 or dcr1 or dcr2 or dcr3 or dcr4
or dcr5 or dcr6 or dcr7
or dwcr0 or dwcr1
`ifdef OR1200_DU_TB_IMPLEMENTED
or tb_wadr or tbia_dat_o or tbim_dat_o
or tbar_dat_o or tbts_dat_o
`endif
)
casex (spr_addr[`OR1200_DUOFS_BITS]) // synopsys parallel_case
`ifdef OR1200_DU_DVR0
`OR1200_DU_DVR0:
spr_dat_o = dvr0;
`endif
`ifdef OR1200_DU_DVR1
`OR1200_DU_DVR1:
spr_dat_o = dvr1;
`endif
`ifdef OR1200_DU_DVR2
`OR1200_DU_DVR2:
spr_dat_o = dvr2;
`endif
`ifdef OR1200_DU_DVR3
`OR1200_DU_DVR3:
spr_dat_o = dvr3;
`endif
`ifdef OR1200_DU_DVR4
`OR1200_DU_DVR4:
spr_dat_o = dvr4;
`endif
`ifdef OR1200_DU_DVR5
`OR1200_DU_DVR5:
spr_dat_o = dvr5;
`endif
`ifdef OR1200_DU_DVR6
`OR1200_DU_DVR6:
spr_dat_o = dvr6;
`endif
`ifdef OR1200_DU_DVR7
`OR1200_DU_DVR7:
spr_dat_o = dvr7;
`endif
`ifdef OR1200_DU_DCR0
`OR1200_DU_DCR0:
spr_dat_o = {24'h00_0000, dcr0};
`endif
`ifdef OR1200_DU_DCR1
`OR1200_DU_DCR1:
spr_dat_o = {24'h00_0000, dcr1};
`endif
`ifdef OR1200_DU_DCR2
`OR1200_DU_DCR2:
spr_dat_o = {24'h00_0000, dcr2};
`endif
`ifdef OR1200_DU_DCR3
`OR1200_DU_DCR3:
spr_dat_o = {24'h00_0000, dcr3};
`endif
`ifdef OR1200_DU_DCR4
`OR1200_DU_DCR4:
spr_dat_o = {24'h00_0000, dcr4};
`endif
`ifdef OR1200_DU_DCR5
`OR1200_DU_DCR5:
spr_dat_o = {24'h00_0000, dcr5};
`endif
`ifdef OR1200_DU_DCR6
`OR1200_DU_DCR6:
spr_dat_o = {24'h00_0000, dcr6};
`endif
`ifdef OR1200_DU_DCR7
`OR1200_DU_DCR7:
spr_dat_o = {24'h00_0000, dcr7};
`endif
`ifdef OR1200_DU_DMR1
`OR1200_DU_DMR1:
spr_dat_o = {7'h00, dmr1};
`endif
`ifdef OR1200_DU_DMR2
`OR1200_DU_DMR2:
spr_dat_o = {8'h00, dmr2};
`endif
`ifdef OR1200_DU_DWCR0
`OR1200_DU_DWCR0:
spr_dat_o = dwcr0;
`endif
`ifdef OR1200_DU_DWCR1
`OR1200_DU_DWCR1:
spr_dat_o = dwcr1;
`endif
`ifdef OR1200_DU_DSR
`OR1200_DU_DSR:
spr_dat_o = {18'b0, dsr};
`endif
`ifdef OR1200_DU_DRR
`OR1200_DU_DRR:
spr_dat_o = {18'b0, drr};
`endif
`ifdef OR1200_DU_TB_IMPLEMENTED
`OR1200_DU_TBADR:
spr_dat_o = {24'h000000, tb_wadr};
`OR1200_DU_TBIA:
spr_dat_o = tbia_dat_o;
`OR1200_DU_TBIM:
spr_dat_o = tbim_dat_o;
`OR1200_DU_TBAR:
spr_dat_o = tbar_dat_o;
`OR1200_DU_TBTS:
spr_dat_o = tbts_dat_o;
`endif
default:
spr_dat_o = 32'h0000_0000;
endcase
`endif
 
//
// DSR alias
//
assign du_dsr = dsr;
 
`ifdef OR1200_DU_HWBKPTS
 
//
// Compare To What (Match Condition 0)
//
always @(dcr0 or id_pc or dcpu_adr_i or dcpu_dat_dc
or dcpu_dat_lsu or dcpu_we_i)
case (dcr0[`OR1200_DU_DCR_CT]) // synopsys parallel_case
3'b001: match_cond0_ct = id_pc; // insn fetch EA
3'b010: match_cond0_ct = dcpu_adr_i; // load EA
3'b011: match_cond0_ct = dcpu_adr_i; // store EA
3'b100: match_cond0_ct = dcpu_dat_dc; // load data
3'b101: match_cond0_ct = dcpu_dat_lsu; // store data
3'b110: match_cond0_ct = dcpu_adr_i; // load/store EA
default:match_cond0_ct = dcpu_we_i ? dcpu_dat_lsu : dcpu_dat_dc;
endcase
 
//
// When To Compare (Match Condition 0)
//
always @(dcr0 or dcpu_cycstb_i)
case (dcr0[`OR1200_DU_DCR_CT]) // synopsys parallel_case
3'b000: match_cond0_stb = 1'b0; //comparison disabled
3'b001: match_cond0_stb = 1'b1; // insn fetch EA
default:match_cond0_stb = dcpu_cycstb_i; // any load/store
endcase
 
//
// Match Condition 0
//
always @(match_cond0_stb or dcr0 or dvr0 or match_cond0_ct)
casex ({match_cond0_stb, dcr0[`OR1200_DU_DCR_CC]})
4'b0_xxx,
4'b1_000,
4'b1_111: match0 = 1'b0;
4'b1_001: match0 =
((match_cond0_ct[31] ^ dcr0[`OR1200_DU_DCR_SC]) ==
(dvr0[31] ^ dcr0[`OR1200_DU_DCR_SC]));
4'b1_010: match0 =
((match_cond0_ct[31] ^ dcr0[`OR1200_DU_DCR_SC]) <
(dvr0[31] ^ dcr0[`OR1200_DU_DCR_SC]));
4'b1_011: match0 =
((match_cond0_ct[31] ^ dcr0[`OR1200_DU_DCR_SC]) <=
(dvr0[31] ^ dcr0[`OR1200_DU_DCR_SC]));
4'b1_100: match0 =
((match_cond0_ct[31] ^ dcr0[`OR1200_DU_DCR_SC]) >
(dvr0[31] ^ dcr0[`OR1200_DU_DCR_SC]));
4'b1_101: match0 =
((match_cond0_ct[31] ^ dcr0[`OR1200_DU_DCR_SC]) >=
(dvr0[31] ^ dcr0[`OR1200_DU_DCR_SC]));
4'b1_110: match0 =
((match_cond0_ct[31] ^ dcr0[`OR1200_DU_DCR_SC]) !=
(dvr0[31] ^ dcr0[`OR1200_DU_DCR_SC]));
endcase
 
//
// Watchpoint 0
//
always @(dmr1 or match0)
case (dmr1[`OR1200_DU_DMR1_CW0])
2'b00: wp[0] = match0;
2'b01: wp[0] = match0;
2'b10: wp[0] = match0;
2'b11: wp[0] = 1'b0;
endcase
 
//
// Compare To What (Match Condition 1)
//
always @(dcr1 or id_pc or dcpu_adr_i or dcpu_dat_dc
or dcpu_dat_lsu or dcpu_we_i)
case (dcr1[`OR1200_DU_DCR_CT]) // synopsys parallel_case
3'b001: match_cond1_ct = id_pc; // insn fetch EA
3'b010: match_cond1_ct = dcpu_adr_i; // load EA
3'b011: match_cond1_ct = dcpu_adr_i; // store EA
3'b100: match_cond1_ct = dcpu_dat_dc; // load data
3'b101: match_cond1_ct = dcpu_dat_lsu; // store data
3'b110: match_cond1_ct = dcpu_adr_i; // load/store EA
default:match_cond1_ct = dcpu_we_i ? dcpu_dat_lsu : dcpu_dat_dc;
endcase
 
//
// When To Compare (Match Condition 1)
//
always @(dcr1 or dcpu_cycstb_i)
case (dcr1[`OR1200_DU_DCR_CT]) // synopsys parallel_case
3'b000: match_cond1_stb = 1'b0; //comparison disabled
3'b001: match_cond1_stb = 1'b1; // insn fetch EA
default:match_cond1_stb = dcpu_cycstb_i; // any load/store
endcase
 
//
// Match Condition 1
//
always @(match_cond1_stb or dcr1 or dvr1 or match_cond1_ct)
casex ({match_cond1_stb, dcr1[`OR1200_DU_DCR_CC]})
4'b0_xxx,
4'b1_000,
4'b1_111: match1 = 1'b0;
4'b1_001: match1 =
((match_cond1_ct[31] ^ dcr1[`OR1200_DU_DCR_SC]) ==
(dvr1[31] ^ dcr1[`OR1200_DU_DCR_SC]));
4'b1_010: match1 =
((match_cond1_ct[31] ^ dcr1[`OR1200_DU_DCR_SC]) <
(dvr1[31] ^ dcr1[`OR1200_DU_DCR_SC]));
4'b1_011: match1 =
((match_cond1_ct[31] ^ dcr1[`OR1200_DU_DCR_SC]) <=
(dvr1[31] ^ dcr1[`OR1200_DU_DCR_SC]));
4'b1_100: match1 =
((match_cond1_ct[31] ^ dcr1[`OR1200_DU_DCR_SC]) >
(dvr1[31] ^ dcr1[`OR1200_DU_DCR_SC]));
4'b1_101: match1 =
((match_cond1_ct[31] ^ dcr1[`OR1200_DU_DCR_SC]) >=
(dvr1[31] ^ dcr1[`OR1200_DU_DCR_SC]));
4'b1_110: match1 =
((match_cond1_ct[31] ^ dcr1[`OR1200_DU_DCR_SC]) !=
(dvr1[31] ^ dcr1[`OR1200_DU_DCR_SC]));
endcase
 
//
// Watchpoint 1
//
always @(dmr1 or match1 or wp)
case (dmr1[`OR1200_DU_DMR1_CW1])
2'b00: wp[1] = match1;
2'b01: wp[1] = match1 & wp[0];
2'b10: wp[1] = match1 | wp[0];
2'b11: wp[1] = 1'b0;
endcase
 
//
// Compare To What (Match Condition 2)
//
always @(dcr2 or id_pc or dcpu_adr_i or dcpu_dat_dc
or dcpu_dat_lsu or dcpu_we_i)
case (dcr2[`OR1200_DU_DCR_CT]) // synopsys parallel_case
3'b001: match_cond2_ct = id_pc; // insn fetch EA
3'b010: match_cond2_ct = dcpu_adr_i; // load EA
3'b011: match_cond2_ct = dcpu_adr_i; // store EA
3'b100: match_cond2_ct = dcpu_dat_dc; // load data
3'b101: match_cond2_ct = dcpu_dat_lsu; // store data
3'b110: match_cond2_ct = dcpu_adr_i; // load/store EA
default:match_cond2_ct = dcpu_we_i ? dcpu_dat_lsu : dcpu_dat_dc;
endcase
 
//
// When To Compare (Match Condition 2)
//
always @(dcr2 or dcpu_cycstb_i)
case (dcr2[`OR1200_DU_DCR_CT]) // synopsys parallel_case
3'b000: match_cond2_stb = 1'b0; //comparison disabled
3'b001: match_cond2_stb = 1'b1; // insn fetch EA
default:match_cond2_stb = dcpu_cycstb_i; // any load/store
endcase
 
//
// Match Condition 2
//
always @(match_cond2_stb or dcr2 or dvr2 or match_cond2_ct)
casex ({match_cond2_stb, dcr2[`OR1200_DU_DCR_CC]})
4'b0_xxx,
4'b1_000,
4'b1_111: match2 = 1'b0;
4'b1_001: match2 =
((match_cond2_ct[31] ^ dcr2[`OR1200_DU_DCR_SC]) ==
(dvr2[31] ^ dcr2[`OR1200_DU_DCR_SC]));
4'b1_010: match2 =
((match_cond2_ct[31] ^ dcr2[`OR1200_DU_DCR_SC]) <
(dvr2[31] ^ dcr2[`OR1200_DU_DCR_SC]));
4'b1_011: match2 =
((match_cond2_ct[31] ^ dcr2[`OR1200_DU_DCR_SC]) <=
(dvr2[31] ^ dcr2[`OR1200_DU_DCR_SC]));
4'b1_100: match2 =
((match_cond2_ct[31] ^ dcr2[`OR1200_DU_DCR_SC]) >
(dvr2[31] ^ dcr2[`OR1200_DU_DCR_SC]));
4'b1_101: match2 =
((match_cond2_ct[31] ^ dcr2[`OR1200_DU_DCR_SC]) >=
(dvr2[31] ^ dcr2[`OR1200_DU_DCR_SC]));
4'b1_110: match2 =
((match_cond2_ct[31] ^ dcr2[`OR1200_DU_DCR_SC]) !=
(dvr2[31] ^ dcr2[`OR1200_DU_DCR_SC]));
endcase
 
//
// Watchpoint 2
//
always @(dmr1 or match2 or wp)
case (dmr1[`OR1200_DU_DMR1_CW2])
2'b00: wp[2] = match2;
2'b01: wp[2] = match2 & wp[1];
2'b10: wp[2] = match2 | wp[1];
2'b11: wp[2] = 1'b0;
endcase
 
//
// Compare To What (Match Condition 3)
//
always @(dcr3 or id_pc or dcpu_adr_i or dcpu_dat_dc
or dcpu_dat_lsu or dcpu_we_i)
case (dcr3[`OR1200_DU_DCR_CT]) // synopsys parallel_case
3'b001: match_cond3_ct = id_pc; // insn fetch EA
3'b010: match_cond3_ct = dcpu_adr_i; // load EA
3'b011: match_cond3_ct = dcpu_adr_i; // store EA
3'b100: match_cond3_ct = dcpu_dat_dc; // load data
3'b101: match_cond3_ct = dcpu_dat_lsu; // store data
3'b110: match_cond3_ct = dcpu_adr_i; // load/store EA
default:match_cond3_ct = dcpu_we_i ? dcpu_dat_lsu : dcpu_dat_dc;
endcase
 
//
// When To Compare (Match Condition 3)
//
always @(dcr3 or dcpu_cycstb_i)
case (dcr3[`OR1200_DU_DCR_CT]) // synopsys parallel_case
3'b000: match_cond3_stb = 1'b0; //comparison disabled
3'b001: match_cond3_stb = 1'b1; // insn fetch EA
default:match_cond3_stb = dcpu_cycstb_i; // any load/store
endcase
 
//
// Match Condition 3
//
always @(match_cond3_stb or dcr3 or dvr3 or match_cond3_ct)
casex ({match_cond3_stb, dcr3[`OR1200_DU_DCR_CC]})
4'b0_xxx,
4'b1_000,
4'b1_111: match3 = 1'b0;
4'b1_001: match3 =
((match_cond3_ct[31] ^ dcr3[`OR1200_DU_DCR_SC]) ==
(dvr3[31] ^ dcr3[`OR1200_DU_DCR_SC]));
4'b1_010: match3 =
((match_cond3_ct[31] ^ dcr3[`OR1200_DU_DCR_SC]) <
(dvr3[31] ^ dcr3[`OR1200_DU_DCR_SC]));
4'b1_011: match3 =
((match_cond3_ct[31] ^ dcr3[`OR1200_DU_DCR_SC]) <=
(dvr3[31] ^ dcr3[`OR1200_DU_DCR_SC]));
4'b1_100: match3 =
((match_cond3_ct[31] ^ dcr3[`OR1200_DU_DCR_SC]) >
(dvr3[31] ^ dcr3[`OR1200_DU_DCR_SC]));
4'b1_101: match3 =
((match_cond3_ct[31] ^ dcr3[`OR1200_DU_DCR_SC]) >=
(dvr3[31] ^ dcr3[`OR1200_DU_DCR_SC]));
4'b1_110: match3 =
((match_cond3_ct[31] ^ dcr3[`OR1200_DU_DCR_SC]) !=
(dvr3[31] ^ dcr3[`OR1200_DU_DCR_SC]));
endcase
 
//
// Watchpoint 3
//
always @(dmr1 or match3 or wp)
case (dmr1[`OR1200_DU_DMR1_CW3])
2'b00: wp[3] = match3;
2'b01: wp[3] = match3 & wp[2];
2'b10: wp[3] = match3 | wp[2];
2'b11: wp[3] = 1'b0;
endcase
 
//
// Compare To What (Match Condition 4)
//
always @(dcr4 or id_pc or dcpu_adr_i or dcpu_dat_dc
or dcpu_dat_lsu or dcpu_we_i)
case (dcr4[`OR1200_DU_DCR_CT]) // synopsys parallel_case
3'b001: match_cond4_ct = id_pc; // insn fetch EA
3'b010: match_cond4_ct = dcpu_adr_i; // load EA
3'b011: match_cond4_ct = dcpu_adr_i; // store EA
3'b100: match_cond4_ct = dcpu_dat_dc; // load data
3'b101: match_cond4_ct = dcpu_dat_lsu; // store data
3'b110: match_cond4_ct = dcpu_adr_i; // load/store EA
default:match_cond4_ct = dcpu_we_i ? dcpu_dat_lsu : dcpu_dat_dc;
endcase
 
//
// When To Compare (Match Condition 4)
//
always @(dcr4 or dcpu_cycstb_i)
case (dcr4[`OR1200_DU_DCR_CT]) // synopsys parallel_case
3'b000: match_cond4_stb = 1'b0; //comparison disabled
3'b001: match_cond4_stb = 1'b1; // insn fetch EA
default:match_cond4_stb = dcpu_cycstb_i; // any load/store
endcase
 
//
// Match Condition 4
//
always @(match_cond4_stb or dcr4 or dvr4 or match_cond4_ct)
casex ({match_cond4_stb, dcr4[`OR1200_DU_DCR_CC]})
4'b0_xxx,
4'b1_000,
4'b1_111: match4 = 1'b0;
4'b1_001: match4 =
((match_cond4_ct[31] ^ dcr4[`OR1200_DU_DCR_SC]) ==
(dvr4[31] ^ dcr4[`OR1200_DU_DCR_SC]));
4'b1_010: match4 =
((match_cond4_ct[31] ^ dcr4[`OR1200_DU_DCR_SC]) <
(dvr4[31] ^ dcr4[`OR1200_DU_DCR_SC]));
4'b1_011: match4 =
((match_cond4_ct[31] ^ dcr4[`OR1200_DU_DCR_SC]) <=
(dvr4[31] ^ dcr4[`OR1200_DU_DCR_SC]));
4'b1_100: match4 =
((match_cond4_ct[31] ^ dcr4[`OR1200_DU_DCR_SC]) >
(dvr4[31] ^ dcr4[`OR1200_DU_DCR_SC]));
4'b1_101: match4 =
((match_cond4_ct[31] ^ dcr4[`OR1200_DU_DCR_SC]) >=
(dvr4[31] ^ dcr4[`OR1200_DU_DCR_SC]));
4'b1_110: match4 =
((match_cond4_ct[31] ^ dcr4[`OR1200_DU_DCR_SC]) !=
(dvr4[31] ^ dcr4[`OR1200_DU_DCR_SC]));
endcase
 
//
// Watchpoint 4
//
always @(dmr1 or match4 or wp)
case (dmr1[`OR1200_DU_DMR1_CW4])
2'b00: wp[4] = match4;
2'b01: wp[4] = match4 & wp[3];
2'b10: wp[4] = match4 | wp[3];
2'b11: wp[4] = 1'b0;
endcase
 
//
// Compare To What (Match Condition 5)
//
always @(dcr5 or id_pc or dcpu_adr_i or dcpu_dat_dc
or dcpu_dat_lsu or dcpu_we_i)
case (dcr5[`OR1200_DU_DCR_CT]) // synopsys parallel_case
3'b001: match_cond5_ct = id_pc; // insn fetch EA
3'b010: match_cond5_ct = dcpu_adr_i; // load EA
3'b011: match_cond5_ct = dcpu_adr_i; // store EA
3'b100: match_cond5_ct = dcpu_dat_dc; // load data
3'b101: match_cond5_ct = dcpu_dat_lsu; // store data
3'b110: match_cond5_ct = dcpu_adr_i; // load/store EA
default:match_cond5_ct = dcpu_we_i ? dcpu_dat_lsu : dcpu_dat_dc;
endcase
 
//
// When To Compare (Match Condition 5)
//
always @(dcr5 or dcpu_cycstb_i)
case (dcr5[`OR1200_DU_DCR_CT]) // synopsys parallel_case
3'b000: match_cond5_stb = 1'b0; //comparison disabled
3'b001: match_cond5_stb = 1'b1; // insn fetch EA
default:match_cond5_stb = dcpu_cycstb_i; // any load/store
endcase
 
//
// Match Condition 5
//
always @(match_cond5_stb or dcr5 or dvr5 or match_cond5_ct)
casex ({match_cond5_stb, dcr5[`OR1200_DU_DCR_CC]})
4'b0_xxx,
4'b1_000,
4'b1_111: match5 = 1'b0;
4'b1_001: match5 =
((match_cond5_ct[31] ^ dcr5[`OR1200_DU_DCR_SC]) ==
(dvr5[31] ^ dcr5[`OR1200_DU_DCR_SC]));
4'b1_010: match5 =
((match_cond5_ct[31] ^ dcr5[`OR1200_DU_DCR_SC]) <
(dvr5[31] ^ dcr5[`OR1200_DU_DCR_SC]));
4'b1_011: match5 =
((match_cond5_ct[31] ^ dcr5[`OR1200_DU_DCR_SC]) <=
(dvr5[31] ^ dcr5[`OR1200_DU_DCR_SC]));
4'b1_100: match5 =
((match_cond5_ct[31] ^ dcr5[`OR1200_DU_DCR_SC]) >
(dvr5[31] ^ dcr5[`OR1200_DU_DCR_SC]));
4'b1_101: match5 =
((match_cond5_ct[31] ^ dcr5[`OR1200_DU_DCR_SC]) >=
(dvr5[31] ^ dcr5[`OR1200_DU_DCR_SC]));
4'b1_110: match5 =
((match_cond5_ct[31] ^ dcr5[`OR1200_DU_DCR_SC]) !=
(dvr5[31] ^ dcr5[`OR1200_DU_DCR_SC]));
endcase
 
//
// Watchpoint 5
//
always @(dmr1 or match5 or wp)
case (dmr1[`OR1200_DU_DMR1_CW5])
2'b00: wp[5] = match5;
2'b01: wp[5] = match5 & wp[4];
2'b10: wp[5] = match5 | wp[4];
2'b11: wp[5] = 1'b0;
endcase
 
//
// Compare To What (Match Condition 6)
//
always @(dcr6 or id_pc or dcpu_adr_i or dcpu_dat_dc
or dcpu_dat_lsu or dcpu_we_i)
case (dcr6[`OR1200_DU_DCR_CT]) // synopsys parallel_case
3'b001: match_cond6_ct = id_pc; // insn fetch EA
3'b010: match_cond6_ct = dcpu_adr_i; // load EA
3'b011: match_cond6_ct = dcpu_adr_i; // store EA
3'b100: match_cond6_ct = dcpu_dat_dc; // load data
3'b101: match_cond6_ct = dcpu_dat_lsu; // store data
3'b110: match_cond6_ct = dcpu_adr_i; // load/store EA
default:match_cond6_ct = dcpu_we_i ? dcpu_dat_lsu : dcpu_dat_dc;
endcase
 
//
// When To Compare (Match Condition 6)
//
always @(dcr6 or dcpu_cycstb_i)
case (dcr6[`OR1200_DU_DCR_CT]) // synopsys parallel_case
3'b000: match_cond6_stb = 1'b0; //comparison disabled
3'b001: match_cond6_stb = 1'b1; // insn fetch EA
default:match_cond6_stb = dcpu_cycstb_i; // any load/store
endcase
 
//
// Match Condition 6
//
always @(match_cond6_stb or dcr6 or dvr6 or match_cond6_ct)
casex ({match_cond6_stb, dcr6[`OR1200_DU_DCR_CC]})
4'b0_xxx,
4'b1_000,
4'b1_111: match6 = 1'b0;
4'b1_001: match6 =
((match_cond6_ct[31] ^ dcr6[`OR1200_DU_DCR_SC]) ==
(dvr6[31] ^ dcr6[`OR1200_DU_DCR_SC]));
4'b1_010: match6 =
((match_cond6_ct[31] ^ dcr6[`OR1200_DU_DCR_SC]) <
(dvr6[31] ^ dcr6[`OR1200_DU_DCR_SC]));
4'b1_011: match6 =
((match_cond6_ct[31] ^ dcr6[`OR1200_DU_DCR_SC]) <=
(dvr6[31] ^ dcr6[`OR1200_DU_DCR_SC]));
4'b1_100: match6 =
((match_cond6_ct[31] ^ dcr6[`OR1200_DU_DCR_SC]) >
(dvr6[31] ^ dcr6[`OR1200_DU_DCR_SC]));
4'b1_101: match6 =
((match_cond6_ct[31] ^ dcr6[`OR1200_DU_DCR_SC]) >=
(dvr6[31] ^ dcr6[`OR1200_DU_DCR_SC]));
4'b1_110: match6 =
((match_cond6_ct[31] ^ dcr6[`OR1200_DU_DCR_SC]) !=
(dvr6[31] ^ dcr6[`OR1200_DU_DCR_SC]));
endcase
 
//
// Watchpoint 6
//
always @(dmr1 or match6 or wp)
case (dmr1[`OR1200_DU_DMR1_CW6])
2'b00: wp[6] = match6;
2'b01: wp[6] = match6 & wp[5];
2'b10: wp[6] = match6 | wp[5];
2'b11: wp[6] = 1'b0;
endcase
 
//
// Compare To What (Match Condition 7)
//
always @(dcr7 or id_pc or dcpu_adr_i or dcpu_dat_dc
or dcpu_dat_lsu or dcpu_we_i)
case (dcr7[`OR1200_DU_DCR_CT]) // synopsys parallel_case
3'b001: match_cond7_ct = id_pc; // insn fetch EA
3'b010: match_cond7_ct = dcpu_adr_i; // load EA
3'b011: match_cond7_ct = dcpu_adr_i; // store EA
3'b100: match_cond7_ct = dcpu_dat_dc; // load data
3'b101: match_cond7_ct = dcpu_dat_lsu; // store data
3'b110: match_cond7_ct = dcpu_adr_i; // load/store EA
default:match_cond7_ct = dcpu_we_i ? dcpu_dat_lsu : dcpu_dat_dc;
endcase
 
//
// When To Compare (Match Condition 7)
//
always @(dcr7 or dcpu_cycstb_i)
case (dcr7[`OR1200_DU_DCR_CT]) // synopsys parallel_case
3'b000: match_cond7_stb = 1'b0; //comparison disabled
3'b001: match_cond7_stb = 1'b1; // insn fetch EA
default:match_cond7_stb = dcpu_cycstb_i; // any load/store
endcase
 
//
// Match Condition 7
//
always @(match_cond7_stb or dcr7 or dvr7 or match_cond7_ct)
casex ({match_cond7_stb, dcr7[`OR1200_DU_DCR_CC]})
4'b0_xxx,
4'b1_000,
4'b1_111: match7 = 1'b0;
4'b1_001: match7 =
((match_cond7_ct[31] ^ dcr7[`OR1200_DU_DCR_SC]) ==
(dvr7[31] ^ dcr7[`OR1200_DU_DCR_SC]));
4'b1_010: match7 =
((match_cond7_ct[31] ^ dcr7[`OR1200_DU_DCR_SC]) <
(dvr7[31] ^ dcr7[`OR1200_DU_DCR_SC]));
4'b1_011: match7 =
((match_cond7_ct[31] ^ dcr7[`OR1200_DU_DCR_SC]) <=
(dvr7[31] ^ dcr7[`OR1200_DU_DCR_SC]));
4'b1_100: match7 =
((match_cond7_ct[31] ^ dcr7[`OR1200_DU_DCR_SC]) >
(dvr7[31] ^ dcr7[`OR1200_DU_DCR_SC]));
4'b1_101: match7 =
((match_cond7_ct[31] ^ dcr7[`OR1200_DU_DCR_SC]) >=
(dvr7[31] ^ dcr7[`OR1200_DU_DCR_SC]));
4'b1_110: match7 =
((match_cond7_ct[31] ^ dcr7[`OR1200_DU_DCR_SC]) !=
(dvr7[31] ^ dcr7[`OR1200_DU_DCR_SC]));
endcase
 
//
// Watchpoint 7
//
always @(dmr1 or match7 or wp)
case (dmr1[`OR1200_DU_DMR1_CW7])
2'b00: wp[7] = match7;
2'b01: wp[7] = match7 & wp[6];
2'b10: wp[7] = match7 | wp[6];
2'b11: wp[7] = 1'b0;
endcase
 
//
// Increment Watchpoint Counter 0
//
always @(wp or dmr2)
if (dmr2[`OR1200_DU_DMR2_WCE0])
incr_wpcntr0 = |(wp & ~dmr2[`OR1200_DU_DMR2_AWTC]);
else
incr_wpcntr0 = 1'b0;
 
//
// Match Condition Watchpoint Counter 0
//
always @(dwcr0)
if (dwcr0[`OR1200_DU_DWCR_MATCH] == dwcr0[`OR1200_DU_DWCR_COUNT])
wpcntr0_match = 1'b1;
else
wpcntr0_match = 1'b0;
 
 
//
// Watchpoint 8
//
always @(dmr1 or wpcntr0_match or wp)
case (dmr1[`OR1200_DU_DMR1_CW8])
2'b00: wp[8] = wpcntr0_match;
2'b01: wp[8] = wpcntr0_match & wp[7];
2'b10: wp[8] = wpcntr0_match | wp[7];
2'b11: wp[8] = 1'b0;
endcase
 
 
//
// Increment Watchpoint Counter 1
//
always @(wp or dmr2)
if (dmr2[`OR1200_DU_DMR2_WCE1])
incr_wpcntr1 = |(wp & dmr2[`OR1200_DU_DMR2_AWTC]);
else
incr_wpcntr1 = 1'b0;
 
//
// Match Condition Watchpoint Counter 1
//
always @(dwcr1)
if (dwcr1[`OR1200_DU_DWCR_MATCH] == dwcr1[`OR1200_DU_DWCR_COUNT])
wpcntr1_match = 1'b1;
else
wpcntr1_match = 1'b0;
 
//
// Watchpoint 9
//
always @(dmr1 or wpcntr1_match or wp)
case (dmr1[`OR1200_DU_DMR1_CW9])
2'b00: wp[9] = wpcntr1_match;
2'b01: wp[9] = wpcntr1_match & wp[8];
2'b10: wp[9] = wpcntr1_match | wp[8];
2'b11: wp[9] = 1'b0;
endcase
 
//
// Watchpoint 10
//
always @(dmr1 or dbg_ewt_i or wp)
case (dmr1[`OR1200_DU_DMR1_CW10])
2'b00: wp[10] = dbg_ewt_i;
2'b01: wp[10] = dbg_ewt_i & wp[9];
2'b10: wp[10] = dbg_ewt_i | wp[9];
2'b11: wp[10] = 1'b0;
endcase
 
`endif
 
//
// Watchpoints can cause trap exception
//
`ifdef OR1200_DU_HWBKPTS
assign du_hwbkpt = |(wp & dmr2[`OR1200_DU_DMR2_WGB]);
`else
assign du_hwbkpt = 1'b0;
`endif
 
`ifdef OR1200_DU_TB_IMPLEMENTED
//
// Simple trace buffer
// (right now hardcoded for Xilinx Virtex FPGAs)
//
// Stores last 256 instruction addresses, instruction
// machine words and ALU results
//
 
//
// Trace buffer write enable
//
assign tb_enw = ~ex_freeze & ~((ex_insn[31:26] == `OR1200_OR32_NOP) & ex_insn[16]);
 
//
// Trace buffer write address pointer
//
always @(posedge clk or posedge rst)
if (rst)
tb_wadr <= #1 8'h00;
else if (tb_enw)
tb_wadr <= #1 tb_wadr + 8'd1;
 
//
// Free running counter (time stamp)
//
always @(posedge clk or posedge rst)
if (rst)
tb_timstmp <= #1 32'h00000000;
else if (!dbg_bp_r)
tb_timstmp <= #1 tb_timstmp + 32'd1;
 
//
// Trace buffer RAMs
//
RAMB4_S16_S16 tbia_ramb4_s16_0(
.CLKA(clk),
.RSTA(rst),
.ADDRA(tb_wadr),
.DIA(spr_dat_npc[15:0]),
.ENA(1'b1),
.WEA(tb_enw),
.DOA(),
 
.CLKB(clk),
.RSTB(rst),
.ADDRB(spr_addr[7:0]),
.DIB(16'h0000),
.ENB(1'b1),
.WEB(1'b0),
.DOB(tbia_dat_o[15:0])
);
 
RAMB4_S16_S16 tbia_ramb4_s16_1(
.CLKA(clk),
.RSTA(rst),
.ADDRA(tb_wadr),
.DIA(spr_dat_npc[31:16]),
.ENA(1'b1),
.WEA(tb_enw),
.DOA(),
 
.CLKB(clk),
.RSTB(rst),
.ADDRB(spr_addr[7:0]),
.DIB(16'h0000),
.ENB(1'b1),
.WEB(1'b0),
.DOB(tbia_dat_o[31:16])
);
 
RAMB4_S16_S16 tbim_ramb4_s16_0(
.CLKA(clk),
.RSTA(rst),
.ADDRA(tb_wadr),
.DIA(ex_insn[15:0]),
.ENA(1'b1),
.WEA(tb_enw),
.DOA(),
 
.CLKB(clk),
.RSTB(rst),
.ADDRB(spr_addr[7:0]),
.DIB(16'h0000),
.ENB(1'b1),
.WEB(1'b0),
.DOB(tbim_dat_o[15:0])
);
 
RAMB4_S16_S16 tbim_ramb4_s16_1(
.CLKA(clk),
.RSTA(rst),
.ADDRA(tb_wadr),
.DIA(ex_insn[31:16]),
.ENA(1'b1),
.WEA(tb_enw),
.DOA(),
 
.CLKB(clk),
.RSTB(rst),
.ADDRB(spr_addr[7:0]),
.DIB(16'h0000),
.ENB(1'b1),
.WEB(1'b0),
.DOB(tbim_dat_o[31:16])
);
 
RAMB4_S16_S16 tbar_ramb4_s16_0(
.CLKA(clk),
.RSTA(rst),
.ADDRA(tb_wadr),
.DIA(rf_dataw[15:0]),
.ENA(1'b1),
.WEA(tb_enw),
.DOA(),
 
.CLKB(clk),
.RSTB(rst),
.ADDRB(spr_addr[7:0]),
.DIB(16'h0000),
.ENB(1'b1),
.WEB(1'b0),
.DOB(tbar_dat_o[15:0])
);
 
RAMB4_S16_S16 tbar_ramb4_s16_1(
.CLKA(clk),
.RSTA(rst),
.ADDRA(tb_wadr),
.DIA(rf_dataw[31:16]),
.ENA(1'b1),
.WEA(tb_enw),
.DOA(),
 
.CLKB(clk),
.RSTB(rst),
.ADDRB(spr_addr[7:0]),
.DIB(16'h0000),
.ENB(1'b1),
.WEB(1'b0),
.DOB(tbar_dat_o[31:16])
);
 
RAMB4_S16_S16 tbts_ramb4_s16_0(
.CLKA(clk),
.RSTA(rst),
.ADDRA(tb_wadr),
.DIA(tb_timstmp[15:0]),
.ENA(1'b1),
.WEA(tb_enw),
.DOA(),
 
.CLKB(clk),
.RSTB(rst),
.ADDRB(spr_addr[7:0]),
.DIB(16'h0000),
.ENB(1'b1),
.WEB(1'b0),
.DOB(tbts_dat_o[15:0])
);
 
RAMB4_S16_S16 tbts_ramb4_s16_1(
.CLKA(clk),
.RSTA(rst),
.ADDRA(tb_wadr),
.DIA(tb_timstmp[31:16]),
.ENA(1'b1),
.WEA(tb_enw),
.DOA(),
 
.CLKB(clk),
.RSTB(rst),
.ADDRB(spr_addr[7:0]),
.DIB(16'h0000),
.ENB(1'b1),
.WEB(1'b0),
.DOB(tbts_dat_o[31:16])
);
 
`else
assign tbia_dat_o = 32'h0000_0000;
assign tbim_dat_o = 32'h0000_0000;
assign tbar_dat_o = 32'h0000_0000;
assign tbts_dat_o = 32'h0000_0000;
 
`endif // OR1200_DU_TB_IMPLEMENTED
 
`else // OR1200_DU_IMPLEMENTED
 
//
// When DU is not implemented, drive all outputs as would when DU is disabled
//
assign dbg_bp_o = 1'b0;
assign du_dsr = {`OR1200_DU_DSR_WIDTH{1'b0}};
 
//
// Read DU registers
//
`ifdef OR1200_DU_READREGS
assign spr_dat_o = 32'h0000_0000;
`ifdef OR1200_DU_UNUSED_ZERO
`endif
`endif
 
`endif
 
endmodule
/tags/rel_26/or1200/rtl/verilog/or1200_defines.v
0,0 → 1,1707
//////////////////////////////////////////////////////////////////////
//// ////
//// OR1200's definitions ////
//// ////
//// This file is part of the OpenRISC 1200 project ////
//// http://www.opencores.org/cores/or1k/ ////
//// ////
//// Description ////
//// Parameters of the OR1200 core ////
//// ////
//// To Do: ////
//// - add parameters that are missing ////
//// ////
//// Author(s): ////
//// - Damjan Lampret, lampret@opencores.org ////
//// ////
//////////////////////////////////////////////////////////////////////
//// ////
//// Copyright (C) 2000 Authors and OPENCORES.ORG ////
//// ////
//// This source file may be used and distributed without ////
//// restriction provided that this copyright statement is not ////
//// removed from the file and that any derivative work contains ////
//// the original copyright notice and the associated disclaimer. ////
//// ////
//// This source file is free software; you can redistribute it ////
//// and/or modify it under the terms of the GNU Lesser General ////
//// Public License as published by the Free Software Foundation; ////
//// either version 2.1 of the License, or (at your option) any ////
//// later version. ////
//// ////
//// This source is distributed in the hope that it will be ////
//// useful, but WITHOUT ANY WARRANTY; without even the implied ////
//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR ////
//// PURPOSE. See the GNU Lesser General Public License for more ////
//// details. ////
//// ////
//// You should have received a copy of the GNU Lesser General ////
//// Public License along with this source; if not, download it ////
//// from http://www.opencores.org/lgpl.shtml ////
//// ////
//////////////////////////////////////////////////////////////////////
//
// CVS Revision History
//
// $Log: not supported by cvs2svn $
// Revision 1.35.4.5 2004/01/15 06:46:38 markom
// interface to debug changed; no more opselect; stb-ack protocol
//
// Revision 1.35.4.4 2004/01/11 22:45:46 andreje
// Separate instruction and data QMEM decoders, QMEM acknowledge and byte-select added
//
// Revision 1.35.4.3 2003/12/17 13:43:38 simons
// Exception prefix configuration changed.
//
// Revision 1.35.4.2 2003/12/05 00:05:03 lampret
// Static exception prefix.
//
// Revision 1.35.4.1 2003/07/08 15:36:37 lampret
// Added embedded memory QMEM.
//
// Revision 1.35 2003/04/24 00:16:07 lampret
// No functional changes. Added defines to disable implementation of multiplier/MAC
//
// Revision 1.34 2003/04/20 22:23:57 lampret
// No functional change. Only added customization for exception vectors.
//
// Revision 1.33 2003/04/07 20:56:07 lampret
// Fixed OR1200_CLKDIV_x_SUPPORTED defines. Better description.
//
// Revision 1.32 2003/04/07 01:26:57 lampret
// RFRAM defines comments updated. Altera LPM option added.
//
// Revision 1.31 2002/12/08 08:57:56 lampret
// Added optional support for WB B3 specification (xwb_cti_o, xwb_bte_o). Made xwb_cab_o optional.
//
// Revision 1.30 2002/10/28 15:09:22 mohor
// Previous check-in was done by mistake.
//
// Revision 1.29 2002/10/28 15:03:50 mohor
// Signal scanb_sen renamed to scanb_en.
//
// Revision 1.28 2002/10/17 20:04:40 lampret
// Added BIST scan. Special VS RAMs need to be used to implement BIST.
//
// Revision 1.27 2002/09/16 03:13:23 lampret
// Removed obsolete comment.
//
// Revision 1.26 2002/09/08 05:52:16 lampret
// Added optional l.div/l.divu insns. By default they are disabled.
//
// Revision 1.25 2002/09/07 19:16:10 lampret
// If SR[CY] implemented with OR1200_IMPL_ADDC enabled, l.add/l.addi also set SR[CY].
//
// Revision 1.24 2002/09/07 05:42:02 lampret
// Added optional SR[CY]. Added define to enable additional (compare) flag modifiers. Defines are OR1200_IMPL_ADDC and OR1200_ADDITIONAL_FLAG_MODIFIERS.
//
// Revision 1.23 2002/09/04 00:50:34 lampret
// Now most of the configuration registers are updatded automatically based on defines in or1200_defines.v.
//
// Revision 1.22 2002/09/03 22:28:21 lampret
// As per Taylor Su suggestion all case blocks are full case by default and optionally (OR1200_CASE_DEFAULT) can be disabled to increase clock frequncy.
//
// Revision 1.21 2002/08/22 02:18:55 lampret
// Store buffer has been tested and it works. BY default it is still disabled until uClinux confirms correct operation on FPGA board.
//
// Revision 1.20 2002/08/18 21:59:45 lampret
// Disable SB until it is tested
//
// Revision 1.19 2002/08/18 19:53:08 lampret
// Added store buffer.
//
// Revision 1.18 2002/08/15 06:04:11 lampret
// Fixed Xilinx trace buffer address. REported by Taylor Su.
//
// Revision 1.17 2002/08/12 05:31:44 lampret
// Added OR1200_WB_RETRY. Moved WB registered outsputs / samples inputs into lower section.
//
// Revision 1.16 2002/07/14 22:17:17 lampret
// Added simple trace buffer [only for Xilinx Virtex target]. Fixed instruction fetch abort when new exception is recognized.
//
// Revision 1.15 2002/06/08 16:20:21 lampret
// Added defines for enabling generic FF based memory macro for register file.
//
// Revision 1.14 2002/03/29 16:24:06 lampret
// Changed comment about synopsys to _synopsys_ because synthesis was complaining about unknown directives
//
// Revision 1.13 2002/03/29 15:16:55 lampret
// Some of the warnings fixed.
//
// Revision 1.12 2002/03/28 19:25:42 lampret
// Added second type of Virtual Silicon two-port SRAM (for register file). Changed defines for VS STP RAMs.
//
// Revision 1.11 2002/03/28 19:13:17 lampret
// Updated defines.
//
// Revision 1.10 2002/03/14 00:30:24 lampret
// Added alternative for critical path in DU.
//
// Revision 1.9 2002/03/11 01:26:26 lampret
// Fixed async loop. Changed multiplier type for ASIC.
//
// Revision 1.8 2002/02/11 04:33:17 lampret
// Speed optimizations (removed duplicate _cyc_ and _stb_). Fixed D/IMMU cache-inhibit attr.
//
// Revision 1.7 2002/02/01 19:56:54 lampret
// Fixed combinational loops.
//
// Revision 1.6 2002/01/19 14:10:22 lampret
// Fixed OR1200_XILINX_RAM32X1D.
//
// Revision 1.5 2002/01/18 07:56:00 lampret
// No more low/high priority interrupts (PICPR removed). Added tick timer exception. Added exception prefix (SR[EPH]). Fixed single-step bug whenreading NPC.
//
// Revision 1.4 2002/01/14 09:44:12 lampret
// Default ASIC configuration does not sample WB inputs.
//
// Revision 1.3 2002/01/08 00:51:08 lampret
// Fixed typo. OR1200_REGISTERED_OUTPUTS was not defined. Should be.
//
// Revision 1.2 2002/01/03 21:23:03 lampret
// Uncommented OR1200_REGISTERED_OUTPUTS for FPGA target.
//
// Revision 1.1 2002/01/03 08:16:15 lampret
// New prefixes for RTL files, prefixed module names. Updated cache controllers and MMUs.
//
// Revision 1.20 2001/12/04 05:02:36 lampret
// Added OR1200_GENERIC_MULTP2_32X32 and OR1200_ASIC_MULTP2_32X32
//
// Revision 1.19 2001/11/27 19:46:57 lampret
// Now FPGA and ASIC target are separate.
//
// Revision 1.18 2001/11/23 21:42:31 simons
// Program counter divided to PPC and NPC.
//
// Revision 1.17 2001/11/23 08:38:51 lampret
// Changed DSR/DRR behavior and exception detection.
//
// Revision 1.16 2001/11/20 21:30:38 lampret
// Added OR1200_REGISTERED_INPUTS.
//
// Revision 1.15 2001/11/19 14:29:48 simons
// Cashes disabled.
//
// Revision 1.14 2001/11/13 10:02:21 lampret
// Added 'setpc'. Renamed some signals (except_flushpipe into flushpipe etc)
//
// Revision 1.13 2001/11/12 01:45:40 lampret
// Moved flag bit into SR. Changed RF enable from constant enable to dynamic enable for read ports.
//
// Revision 1.12 2001/11/10 03:43:57 lampret
// Fixed exceptions.
//
// Revision 1.11 2001/11/02 18:57:14 lampret
// Modified virtual silicon instantiations.
//
// Revision 1.10 2001/10/21 17:57:16 lampret
// Removed params from generic_XX.v. Added translate_off/on in sprs.v and id.v. Removed spr_addr from dc.v and ic.v. Fixed CR+LF.
//
// Revision 1.9 2001/10/19 23:28:46 lampret
// Fixed some synthesis warnings. Configured with caches and MMUs.
//
// Revision 1.8 2001/10/14 13:12:09 lampret
// MP3 version.
//
// Revision 1.1.1.1 2001/10/06 10:18:36 igorm
// no message
//
// Revision 1.3 2001/08/17 08:01:19 lampret
// IC enable/disable.
//
// Revision 1.2 2001/08/13 03:36:20 lampret
// Added cfg regs. Moved all defines into one defines.v file. More cleanup.
//
// Revision 1.1 2001/08/09 13:39:33 lampret
// Major clean-up.
//
// Revision 1.2 2001/07/22 03:31:54 lampret
// Fixed RAM's oen bug. Cache bypass under development.
//
// Revision 1.1 2001/07/20 00:46:03 lampret
// Development version of RTL. Libraries are missing.
//
//
 
//
// Dump VCD
//
//`define OR1200_VCD_DUMP
 
//
// Generate debug messages during simulation
//
//`define OR1200_VERBOSE
 
// `define OR1200_ASIC
////////////////////////////////////////////////////////
//
// Typical configuration for an ASIC
//
`ifdef OR1200_ASIC
 
//
// Target ASIC memories
//
//`define OR1200_ARTISAN_SSP
//`define OR1200_ARTISAN_SDP
//`define OR1200_ARTISAN_STP
`define OR1200_VIRTUALSILICON_SSP
//`define OR1200_VIRTUALSILICON_STP_T1
//`define OR1200_VIRTUALSILICON_STP_T2
 
//
// Do not implement Data cache
//
//`define OR1200_NO_DC
 
//
// Do not implement Insn cache
//
//`define OR1200_NO_IC
 
//
// Do not implement Data MMU
//
//`define OR1200_NO_DMMU
 
//
// Do not implement Insn MMU
//
//`define OR1200_NO_IMMU
 
//
// Select between ASIC optimized and generic multiplier
//
//`define OR1200_ASIC_MULTP2_32X32
`define OR1200_GENERIC_MULTP2_32X32
 
//
// Size/type of insn/data cache if implemented
//
// `define OR1200_IC_1W_4KB
`define OR1200_IC_1W_8KB
// `define OR1200_DC_1W_4KB
`define OR1200_DC_1W_8KB
 
`else
 
 
/////////////////////////////////////////////////////////
//
// Typical configuration for an FPGA
//
 
//
// Target FPGA memories
//
//`define OR1200_ALTERA_LPM
`define OR1200_XILINX_RAMB4
//`define OR1200_XILINX_RAM32X1D
//`define OR1200_USE_RAM16X1D_FOR_RAM32X1D
 
//
// Do not implement Data cache
//
//`define OR1200_NO_DC
 
//
// Do not implement Insn cache
//
//`define OR1200_NO_IC
 
//
// Do not implement Data MMU
//
//`define OR1200_NO_DMMU
 
//
// Do not implement Insn MMU
//
//`define OR1200_NO_IMMU
 
//
// Select between ASIC and generic multiplier
//
// (Generic seems to trigger a bug in the Cadence Ncsim simulator)
//
//`define OR1200_ASIC_MULTP2_32X32
`define OR1200_GENERIC_MULTP2_32X32
 
//
// Size/type of insn/data cache if implemented
// (consider available FPGA memory resources)
//
`define OR1200_IC_1W_4KB
//`define OR1200_IC_1W_8KB
`define OR1200_DC_1W_4KB
//`define OR1200_DC_1W_8KB
 
`endif
 
 
//////////////////////////////////////////////////////////
//
// Do not change below unless you know what you are doing
//
 
//
// Enable RAM BIST
//
// At the moment this only works for Virtual Silicon
// single port RAMs. For other RAMs it has not effect.
// Special wrapper for VS RAMs needs to be provided
// with scan flops to facilitate bist scan.
//
//`define OR1200_BIST
 
//
// Register OR1200 WISHBONE outputs
// (must be defined/enabled)
//
`define OR1200_REGISTERED_OUTPUTS
 
//
// Register OR1200 WISHBONE inputs
//
// (must be undefined/disabled)
//
//`define OR1200_REGISTERED_INPUTS
 
//
// Disable bursts if they are not supported by the
// memory subsystem (only affect cache line fill)
//
//`define OR1200_NO_BURSTS
//
 
//
// WISHBONE retry counter range
//
// 2^value range for retry counter. Retry counter
// is activated whenever *wb_rty_i is asserted and
// until retry counter expires, corresponding
// WISHBONE interface is deactivated.
//
// To disable retry counters and *wb_rty_i all together,
// undefine this macro.
//
//`define OR1200_WB_RETRY 7
 
//
// WISHBONE Consecutive Address Burst
//
// This was used prior to WISHBONE B3 specification
// to identify bursts. It is no longer needed but
// remains enabled for compatibility with old designs.
//
// To remove *wb_cab_o ports undefine this macro.
//
`define OR1200_WB_CAB
 
//
// WISHBONE B3 compatible interface
//
// This follows the WISHBONE B3 specification.
// It is not enabled by default because most
// designs still don't use WB b3.
//
// To enable *wb_cti_o/*wb_bte_o ports,
// define this macro.
//
//`define OR1200_WB_B3
 
//
// Enable additional synthesis directives if using
// _Synopsys_ synthesis tool
//
//`define OR1200_ADDITIONAL_SYNOPSYS_DIRECTIVES
 
//
// Enables default statement in some case blocks
// and disables Synopsys synthesis directive full_case
//
// By default it is enabled. When disabled it
// can increase clock frequency.
//
`define OR1200_CASE_DEFAULT
 
//
// Operand width / register file address width
//
// (DO NOT CHANGE)
//
`define OR1200_OPERAND_WIDTH 32
`define OR1200_REGFILE_ADDR_WIDTH 5
 
//
// l.add/l.addi/l.and and optional l.addc/l.addic
// also set (compare) flag when result of their
// operation equals zero
//
// At the time of writing this, default or32
// C/C++ compiler doesn't generate code that
// would benefit from this optimization.
//
// By default this optimization is disabled to
// save area.
//
//`define OR1200_ADDITIONAL_FLAG_MODIFIERS
 
//
// Implement l.addc/l.addic instructions and SR[CY]
//
// At the time of writing this, or32
// C/C++ compiler doesn't generate l.addc/l.addic
// instructions. However or32 assembler
// can assemble code that uses l.addc/l.addic insns.
//
// By default implementation of l.addc/l.addic
// instructions and SR[CY] is disabled to save
// area.
//
// [Because this define controles implementation
// of SR[CY] write enable, if it is not enabled,
// l.add/l.addi also don't set SR[CY].]
//
//`define OR1200_IMPL_ADDC
 
//
// Implement optional l.div/l.divu instructions
//
// By default divide instructions are not implemented
// to save area and increase clock frequency. or32 C/C++
// compiler can use soft library for division.
//
// To implement divide, multiplier needs to be implemented.
//
//`define OR1200_IMPL_DIV
 
//
// Implement rotate in the ALU
//
// At the time of writing this, or32
// C/C++ compiler doesn't generate rotate
// instructions. However or32 assembler
// can assemble code that uses rotate insn.
// This means that rotate instructions
// must be used manually inserted.
//
// By default implementation of rotate
// is disabled to save area and increase
// clock frequency.
//
//`define OR1200_IMPL_ALU_ROTATE
 
//
// Type of ALU compare to implement
//
// Try either one to find what yields
// higher clock frequencyin your case.
//
//`define OR1200_IMPL_ALU_COMP1
`define OR1200_IMPL_ALU_COMP2
 
//
// Implement multiplier
//
// By default multiplier is implemented
//
`define OR1200_MULT_IMPLEMENTED
 
//
// Implement multiply-and-accumulate
//
// By default MAC is implemented. To
// implement MAC, multiplier needs to be
// implemented.
//
`define OR1200_MAC_IMPLEMENTED
 
//
// Low power, slower multiplier
//
// Select between low-power (larger) multiplier
// and faster multiplier. The actual difference
// is only AND logic that prevents distribution
// of operands into the multiplier when instruction
// in execution is not multiply instruction
//
//`define OR1200_LOWPWR_MULT
 
//
// Clock ratio RISC clock versus WB clock
//
// If you plan to run WB:RISC clock fixed to 1:1, disable
// both defines
//
// For WB:RISC 1:2 or 1:1, enable OR1200_CLKDIV_2_SUPPORTED
// and use clmode to set ratio
//
// For WB:RISC 1:4, 1:2 or 1:1, enable both defines and use
// clmode to set ratio
//
`define OR1200_CLKDIV_2_SUPPORTED
//`define OR1200_CLKDIV_4_SUPPORTED
 
//
// Type of register file RAM
//
// Memory macro w/ two ports (see or1200_tpram_32x32.v)
// `define OR1200_RFRAM_TWOPORT
//
// Memory macro dual port (see or1200_dpram_32x32.v)
`define OR1200_RFRAM_DUALPORT
//
// Generic (flip-flop based) register file (see or1200_rfram_generic.v)
//`define OR1200_RFRAM_GENERIC
 
//
// Type of mem2reg aligner to implement.
//
// Once OR1200_IMPL_MEM2REG2 yielded faster
// circuit, however with today tools it will
// most probably give you slower circuit.
//
`define OR1200_IMPL_MEM2REG1
//`define OR1200_IMPL_MEM2REG2
 
//
// ALUOPs
//
`define OR1200_ALUOP_WIDTH 4
`define OR1200_ALUOP_NOP 4'd4
/* Order defined by arith insns that have two source operands both in regs
(see binutils/include/opcode/or32.h) */
`define OR1200_ALUOP_ADD 4'd0
`define OR1200_ALUOP_ADDC 4'd1
`define OR1200_ALUOP_SUB 4'd2
`define OR1200_ALUOP_AND 4'd3
`define OR1200_ALUOP_OR 4'd4
`define OR1200_ALUOP_XOR 4'd5
`define OR1200_ALUOP_MUL 4'd6
`define OR1200_ALUOP_SHROT 4'd8
`define OR1200_ALUOP_DIV 4'd9
`define OR1200_ALUOP_DIVU 4'd10
/* Order not specifically defined. */
`define OR1200_ALUOP_IMM 4'd11
`define OR1200_ALUOP_MOVHI 4'd12
`define OR1200_ALUOP_COMP 4'd13
`define OR1200_ALUOP_MTSR 4'd14
`define OR1200_ALUOP_MFSR 4'd15
 
//
// MACOPs
//
`define OR1200_MACOP_WIDTH 2
`define OR1200_MACOP_NOP 2'b00
`define OR1200_MACOP_MAC 2'b01
`define OR1200_MACOP_MSB 2'b10
 
//
// Shift/rotate ops
//
`define OR1200_SHROTOP_WIDTH 2
`define OR1200_SHROTOP_NOP 2'd0
`define OR1200_SHROTOP_SLL 2'd0
`define OR1200_SHROTOP_SRL 2'd1
`define OR1200_SHROTOP_SRA 2'd2
`define OR1200_SHROTOP_ROR 2'd3
 
// Execution cycles per instruction
`define OR1200_MULTICYCLE_WIDTH 2
`define OR1200_ONE_CYCLE 2'd0
`define OR1200_TWO_CYCLES 2'd1
 
// Operand MUX selects
`define OR1200_SEL_WIDTH 2
`define OR1200_SEL_RF 2'd0
`define OR1200_SEL_IMM 2'd1
`define OR1200_SEL_EX_FORW 2'd2
`define OR1200_SEL_WB_FORW 2'd3
 
//
// BRANCHOPs
//
`define OR1200_BRANCHOP_WIDTH 3
`define OR1200_BRANCHOP_NOP 3'd0
`define OR1200_BRANCHOP_J 3'd1
`define OR1200_BRANCHOP_JR 3'd2
`define OR1200_BRANCHOP_BAL 3'd3
`define OR1200_BRANCHOP_BF 3'd4
`define OR1200_BRANCHOP_BNF 3'd5
`define OR1200_BRANCHOP_RFE 3'd6
 
//
// LSUOPs
//
// Bit 0: sign extend
// Bits 1-2: 00 doubleword, 01 byte, 10 halfword, 11 singleword
// Bit 3: 0 load, 1 store
`define OR1200_LSUOP_WIDTH 4
`define OR1200_LSUOP_NOP 4'b0000
`define OR1200_LSUOP_LBZ 4'b0010
`define OR1200_LSUOP_LBS 4'b0011
`define OR1200_LSUOP_LHZ 4'b0100
`define OR1200_LSUOP_LHS 4'b0101
`define OR1200_LSUOP_LWZ 4'b0110
`define OR1200_LSUOP_LWS 4'b0111
`define OR1200_LSUOP_LD 4'b0001
`define OR1200_LSUOP_SD 4'b1000
`define OR1200_LSUOP_SB 4'b1010
`define OR1200_LSUOP_SH 4'b1100
`define OR1200_LSUOP_SW 4'b1110
 
// FETCHOPs
`define OR1200_FETCHOP_WIDTH 1
`define OR1200_FETCHOP_NOP 1'b0
`define OR1200_FETCHOP_LW 1'b1
 
//
// Register File Write-Back OPs
//
// Bit 0: register file write enable
// Bits 2-1: write-back mux selects
`define OR1200_RFWBOP_WIDTH 3
`define OR1200_RFWBOP_NOP 3'b000
`define OR1200_RFWBOP_ALU 3'b001
`define OR1200_RFWBOP_LSU 3'b011
`define OR1200_RFWBOP_SPRS 3'b101
`define OR1200_RFWBOP_LR 3'b111
 
// Compare instructions
`define OR1200_COP_SFEQ 3'b000
`define OR1200_COP_SFNE 3'b001
`define OR1200_COP_SFGT 3'b010
`define OR1200_COP_SFGE 3'b011
`define OR1200_COP_SFLT 3'b100
`define OR1200_COP_SFLE 3'b101
`define OR1200_COP_X 3'b111
`define OR1200_SIGNED_COMPARE 'd3
`define OR1200_COMPOP_WIDTH 4
 
//
// TAGs for instruction bus
//
`define OR1200_ITAG_IDLE 4'h0 // idle bus
`define OR1200_ITAG_NI 4'h1 // normal insn
`define OR1200_ITAG_BE 4'hb // Bus error exception
`define OR1200_ITAG_PE 4'hc // Page fault exception
`define OR1200_ITAG_TE 4'hd // TLB miss exception
 
//
// TAGs for data bus
//
`define OR1200_DTAG_IDLE 4'h0 // idle bus
`define OR1200_DTAG_ND 4'h1 // normal data
`define OR1200_DTAG_AE 4'ha // Alignment exception
`define OR1200_DTAG_BE 4'hb // Bus error exception
`define OR1200_DTAG_PE 4'hc // Page fault exception
`define OR1200_DTAG_TE 4'hd // TLB miss exception
 
 
//////////////////////////////////////////////
//
// ORBIS32 ISA specifics
//
 
// SHROT_OP position in machine word
`define OR1200_SHROTOP_POS 7:6
 
// ALU instructions multicycle field in machine word
`define OR1200_ALUMCYC_POS 9:8
 
//
// Instruction opcode groups (basic)
//
`define OR1200_OR32_J 6'b000000
`define OR1200_OR32_JAL 6'b000001
`define OR1200_OR32_BNF 6'b000011
`define OR1200_OR32_BF 6'b000100
`define OR1200_OR32_NOP 6'b000101
`define OR1200_OR32_MOVHI 6'b000110
`define OR1200_OR32_XSYNC 6'b001000
`define OR1200_OR32_RFE 6'b001001
/* */
`define OR1200_OR32_JR 6'b010001
`define OR1200_OR32_JALR 6'b010010
`define OR1200_OR32_MACI 6'b010011
/* */
`define OR1200_OR32_LWZ 6'b100001
`define OR1200_OR32_LBZ 6'b100011
`define OR1200_OR32_LBS 6'b100100
`define OR1200_OR32_LHZ 6'b100101
`define OR1200_OR32_LHS 6'b100110
`define OR1200_OR32_ADDI 6'b100111
`define OR1200_OR32_ADDIC 6'b101000
`define OR1200_OR32_ANDI 6'b101001
`define OR1200_OR32_ORI 6'b101010
`define OR1200_OR32_XORI 6'b101011
`define OR1200_OR32_MULI 6'b101100
`define OR1200_OR32_MFSPR 6'b101101
`define OR1200_OR32_SH_ROTI 6'b101110
`define OR1200_OR32_SFXXI 6'b101111
/* */
`define OR1200_OR32_MTSPR 6'b110000
`define OR1200_OR32_MACMSB 6'b110001
/* */
`define OR1200_OR32_SW 6'b110101
`define OR1200_OR32_SB 6'b110110
`define OR1200_OR32_SH 6'b110111
`define OR1200_OR32_ALU 6'b111000
`define OR1200_OR32_SFXX 6'b111001
 
 
/////////////////////////////////////////////////////
//
// Exceptions
//
 
//
// Exception vectors per OR1K architecture:
// 0xPPPPP100 - reset
// 0xPPPPP200 - bus error
// ... etc
// where P represents exception prefix.
//
// Exception vectors can be customized as per
// the following formula:
// 0xPPPPPNVV - exception N
//
// P represents exception prefix
// N represents exception N
// VV represents length of the individual vector space,
// usually it is 8 bits wide and starts with all bits zero
//
 
//
// PPPPP and VV parts
//
// Sum of these two defines needs to be 28
//
`define OR1200_EXCEPT_EPH0_P 20'h00000
`define OR1200_EXCEPT_EPH1_P 20'hF0000
`define OR1200_EXCEPT_V 8'h00
 
//
// N part width
//
`define OR1200_EXCEPT_WIDTH 4
 
//
// Definition of exception vectors
//
// To avoid implementation of a certain exception,
// simply comment out corresponding line
//
`define OR1200_EXCEPT_UNUSED `OR1200_EXCEPT_WIDTH'hf
`define OR1200_EXCEPT_TRAP `OR1200_EXCEPT_WIDTH'he
`define OR1200_EXCEPT_BREAK `OR1200_EXCEPT_WIDTH'hd
`define OR1200_EXCEPT_SYSCALL `OR1200_EXCEPT_WIDTH'hc
`define OR1200_EXCEPT_RANGE `OR1200_EXCEPT_WIDTH'hb
`define OR1200_EXCEPT_ITLBMISS `OR1200_EXCEPT_WIDTH'ha
`define OR1200_EXCEPT_DTLBMISS `OR1200_EXCEPT_WIDTH'h9
`define OR1200_EXCEPT_INT `OR1200_EXCEPT_WIDTH'h8
`define OR1200_EXCEPT_ILLEGAL `OR1200_EXCEPT_WIDTH'h7
`define OR1200_EXCEPT_ALIGN `OR1200_EXCEPT_WIDTH'h6
`define OR1200_EXCEPT_TICK `OR1200_EXCEPT_WIDTH'h5
`define OR1200_EXCEPT_IPF `OR1200_EXCEPT_WIDTH'h4
`define OR1200_EXCEPT_DPF `OR1200_EXCEPT_WIDTH'h3
`define OR1200_EXCEPT_BUSERR `OR1200_EXCEPT_WIDTH'h2
`define OR1200_EXCEPT_RESET `OR1200_EXCEPT_WIDTH'h1
`define OR1200_EXCEPT_NONE `OR1200_EXCEPT_WIDTH'h0
 
 
/////////////////////////////////////////////////////
//
// SPR groups
//
 
// Bits that define the group
`define OR1200_SPR_GROUP_BITS 15:11
 
// Width of the group bits
`define OR1200_SPR_GROUP_WIDTH 5
 
// Bits that define offset inside the group
`define OR1200_SPR_OFS_BITS 10:0
 
// List of groups
`define OR1200_SPR_GROUP_SYS 5'd00
`define OR1200_SPR_GROUP_DMMU 5'd01
`define OR1200_SPR_GROUP_IMMU 5'd02
`define OR1200_SPR_GROUP_DC 5'd03
`define OR1200_SPR_GROUP_IC 5'd04
`define OR1200_SPR_GROUP_MAC 5'd05
`define OR1200_SPR_GROUP_DU 5'd06
`define OR1200_SPR_GROUP_PM 5'd08
`define OR1200_SPR_GROUP_PIC 5'd09
`define OR1200_SPR_GROUP_TT 5'd10
 
 
/////////////////////////////////////////////////////
//
// System group
//
 
//
// System registers
//
`define OR1200_SPR_CFGR 7'd0
`define OR1200_SPR_RF 6'd32 // 1024 >> 5
`define OR1200_SPR_NPC 11'd16
`define OR1200_SPR_SR 11'd17
`define OR1200_SPR_PPC 11'd18
`define OR1200_SPR_EPCR 11'd32
`define OR1200_SPR_EEAR 11'd48
`define OR1200_SPR_ESR 11'd64
 
//
// SR bits
//
`define OR1200_SR_WIDTH 16
`define OR1200_SR_SM 0
`define OR1200_SR_TEE 1
`define OR1200_SR_IEE 2
`define OR1200_SR_DCE 3
`define OR1200_SR_ICE 4
`define OR1200_SR_DME 5
`define OR1200_SR_IME 6
`define OR1200_SR_LEE 7
`define OR1200_SR_CE 8
`define OR1200_SR_F 9
`define OR1200_SR_CY 10 // Unused
`define OR1200_SR_OV 11 // Unused
`define OR1200_SR_OVE 12 // Unused
`define OR1200_SR_DSX 13 // Unused
`define OR1200_SR_EPH 14
`define OR1200_SR_FO 15
`define OR1200_SR_CID 31:28 // Unimplemented
 
//
// Bits that define offset inside the group
//
`define OR1200_SPROFS_BITS 10:0
 
//
// Default Exception Prefix
//
// 1'b0 - OR1200_EXCEPT_EPH0_P (0x0000_0000)
// 1'b1 - OR1200_EXCEPT_EPH1_P (0xF000_0000)
//
`define OR1200_SR_EPH_DEF 1'b0
 
/////////////////////////////////////////////////////
//
// Power Management (PM)
//
 
// Define it if you want PM implemented
`define OR1200_PM_IMPLEMENTED
 
// Bit positions inside PMR (don't change)
`define OR1200_PM_PMR_SDF 3:0
`define OR1200_PM_PMR_DME 4
`define OR1200_PM_PMR_SME 5
`define OR1200_PM_PMR_DCGE 6
`define OR1200_PM_PMR_UNUSED 31:7
 
// PMR offset inside PM group of registers
`define OR1200_PM_OFS_PMR 11'b0
 
// PM group
`define OR1200_SPRGRP_PM 5'd8
 
// Define if PMR can be read/written at any address inside PM group
`define OR1200_PM_PARTIAL_DECODING
 
// Define if reading PMR is allowed
`define OR1200_PM_READREGS
 
// Define if unused PMR bits should be zero
`define OR1200_PM_UNUSED_ZERO
 
 
/////////////////////////////////////////////////////
//
// Debug Unit (DU)
//
 
// Define it if you want DU implemented
`define OR1200_DU_IMPLEMENTED
 
//
// Define if you want HW Breakpoints
// (if HW breakpoints are not implemented
// only default software trapping is
// possible with l.trap insn - this is
// however already enough for use
// with or32 gdb)
//
//`define OR1200_DU_HWBKPTS
 
// Number of DVR/DCR pairs if HW breakpoints enabled
`define OR1200_DU_DVRDCR_PAIRS 8
 
// Define if you want trace buffer
// (for now only available for Xilinx Virtex FPGAs)
`ifdef OR1200_ASIC
`else
`define OR1200_DU_TB_IMPLEMENTED
`endif
 
//
// Address offsets of DU registers inside DU group
//
// To not implement a register, do not define its address
//
`ifdef OR1200_DU_HWBKPTS
`define OR1200_DU_DVR0 11'd0
`define OR1200_DU_DVR1 11'd1
`define OR1200_DU_DVR2 11'd2
`define OR1200_DU_DVR3 11'd3
`define OR1200_DU_DVR4 11'd4
`define OR1200_DU_DVR5 11'd5
`define OR1200_DU_DVR6 11'd6
`define OR1200_DU_DVR7 11'd7
`define OR1200_DU_DCR0 11'd8
`define OR1200_DU_DCR1 11'd9
`define OR1200_DU_DCR2 11'd10
`define OR1200_DU_DCR3 11'd11
`define OR1200_DU_DCR4 11'd12
`define OR1200_DU_DCR5 11'd13
`define OR1200_DU_DCR6 11'd14
`define OR1200_DU_DCR7 11'd15
`endif
`define OR1200_DU_DMR1 11'd16
`ifdef OR1200_DU_HWBKPTS
`define OR1200_DU_DMR2 11'd17
`define OR1200_DU_DWCR0 11'd18
`define OR1200_DU_DWCR1 11'd19
`endif
`define OR1200_DU_DSR 11'd20
`define OR1200_DU_DRR 11'd21
`ifdef OR1200_DU_TB_IMPLEMENTED
`define OR1200_DU_TBADR 11'h0ff
`define OR1200_DU_TBIA 11'h1xx
`define OR1200_DU_TBIM 11'h2xx
`define OR1200_DU_TBAR 11'h3xx
`define OR1200_DU_TBTS 11'h4xx
`endif
 
// Position of offset bits inside SPR address
`define OR1200_DUOFS_BITS 10:0
 
// DCR bits
`define OR1200_DU_DCR_DP 0
`define OR1200_DU_DCR_CC 3:1
`define OR1200_DU_DCR_SC 4
`define OR1200_DU_DCR_CT 7:5
 
// DMR1 bits
`define OR1200_DU_DMR1_CW0 1:0
`define OR1200_DU_DMR1_CW1 3:2
`define OR1200_DU_DMR1_CW2 5:4
`define OR1200_DU_DMR1_CW3 7:6
`define OR1200_DU_DMR1_CW4 9:8
`define OR1200_DU_DMR1_CW5 11:10
`define OR1200_DU_DMR1_CW6 13:12
`define OR1200_DU_DMR1_CW7 15:14
`define OR1200_DU_DMR1_CW8 17:16
`define OR1200_DU_DMR1_CW9 19:18
`define OR1200_DU_DMR1_CW10 21:20
`define OR1200_DU_DMR1_ST 22
`define OR1200_DU_DMR1_BT 23
`define OR1200_DU_DMR1_DXFW 24
`define OR1200_DU_DMR1_ETE 25
 
// DMR2 bits
`define OR1200_DU_DMR2_WCE0 0
`define OR1200_DU_DMR2_WCE1 1
`define OR1200_DU_DMR2_AWTC 12:2
`define OR1200_DU_DMR2_WGB 23:13
 
// DWCR bits
`define OR1200_DU_DWCR_COUNT 15:0
`define OR1200_DU_DWCR_MATCH 31:16
 
// DSR bits
`define OR1200_DU_DSR_WIDTH 14
`define OR1200_DU_DSR_RSTE 0
`define OR1200_DU_DSR_BUSEE 1
`define OR1200_DU_DSR_DPFE 2
`define OR1200_DU_DSR_IPFE 3
`define OR1200_DU_DSR_TTE 4
`define OR1200_DU_DSR_AE 5
`define OR1200_DU_DSR_IIE 6
`define OR1200_DU_DSR_IE 7
`define OR1200_DU_DSR_DME 8
`define OR1200_DU_DSR_IME 9
`define OR1200_DU_DSR_RE 10
`define OR1200_DU_DSR_SCE 11
`define OR1200_DU_DSR_BE 12
`define OR1200_DU_DSR_TE 13
 
// DRR bits
`define OR1200_DU_DRR_RSTE 0
`define OR1200_DU_DRR_BUSEE 1
`define OR1200_DU_DRR_DPFE 2
`define OR1200_DU_DRR_IPFE 3
`define OR1200_DU_DRR_TTE 4
`define OR1200_DU_DRR_AE 5
`define OR1200_DU_DRR_IIE 6
`define OR1200_DU_DRR_IE 7
`define OR1200_DU_DRR_DME 8
`define OR1200_DU_DRR_IME 9
`define OR1200_DU_DRR_RE 10
`define OR1200_DU_DRR_SCE 11
`define OR1200_DU_DRR_BE 12
`define OR1200_DU_DRR_TE 13
 
// Define if reading DU regs is allowed
`define OR1200_DU_READREGS
 
// Define if unused DU registers bits should be zero
`define OR1200_DU_UNUSED_ZERO
 
// Define if IF/LSU status is not needed by devel i/f
`define OR1200_DU_STATUS_UNIMPLEMENTED
 
/////////////////////////////////////////////////////
//
// Programmable Interrupt Controller (PIC)
//
 
// Define it if you want PIC implemented
`define OR1200_PIC_IMPLEMENTED
 
// Define number of interrupt inputs (2-31)
`define OR1200_PIC_INTS 20
 
// Address offsets of PIC registers inside PIC group
`define OR1200_PIC_OFS_PICMR 2'd0
`define OR1200_PIC_OFS_PICSR 2'd2
 
// Position of offset bits inside SPR address
`define OR1200_PICOFS_BITS 1:0
 
// Define if you want these PIC registers to be implemented
`define OR1200_PIC_PICMR
`define OR1200_PIC_PICSR
 
// Define if reading PIC registers is allowed
`define OR1200_PIC_READREGS
 
// Define if unused PIC register bits should be zero
`define OR1200_PIC_UNUSED_ZERO
 
 
/////////////////////////////////////////////////////
//
// Tick Timer (TT)
//
 
// Define it if you want TT implemented
`define OR1200_TT_IMPLEMENTED
 
// Address offsets of TT registers inside TT group
`define OR1200_TT_OFS_TTMR 1'd0
`define OR1200_TT_OFS_TTCR 1'd1
 
// Position of offset bits inside SPR group
`define OR1200_TTOFS_BITS 0
 
// Define if you want these TT registers to be implemented
`define OR1200_TT_TTMR
`define OR1200_TT_TTCR
 
// TTMR bits
`define OR1200_TT_TTMR_TP 27:0
`define OR1200_TT_TTMR_IP 28
`define OR1200_TT_TTMR_IE 29
`define OR1200_TT_TTMR_M 31:30
 
// Define if reading TT registers is allowed
`define OR1200_TT_READREGS
 
 
//////////////////////////////////////////////
//
// MAC
//
`define OR1200_MAC_ADDR 0 // MACLO 0xxxxxxxx1, MACHI 0xxxxxxxx0
`define OR1200_MAC_SPR_WE // Define if MACLO/MACHI are SPR writable
 
 
//////////////////////////////////////////////
//
// Data MMU (DMMU)
//
 
//
// Address that selects between TLB TR and MR
//
`define OR1200_DTLB_TM_ADDR 7
 
//
// DTLBMR fields
//
`define OR1200_DTLBMR_V_BITS 0
`define OR1200_DTLBMR_CID_BITS 4:1
`define OR1200_DTLBMR_RES_BITS 11:5
`define OR1200_DTLBMR_VPN_BITS 31:13
 
//
// DTLBTR fields
//
`define OR1200_DTLBTR_CC_BITS 0
`define OR1200_DTLBTR_CI_BITS 1
`define OR1200_DTLBTR_WBC_BITS 2
`define OR1200_DTLBTR_WOM_BITS 3
`define OR1200_DTLBTR_A_BITS 4
`define OR1200_DTLBTR_D_BITS 5
`define OR1200_DTLBTR_URE_BITS 6
`define OR1200_DTLBTR_UWE_BITS 7
`define OR1200_DTLBTR_SRE_BITS 8
`define OR1200_DTLBTR_SWE_BITS 9
`define OR1200_DTLBTR_RES_BITS 11:10
`define OR1200_DTLBTR_PPN_BITS 31:13
 
//
// DTLB configuration
//
`define OR1200_DMMU_PS 13 // 13 for 8KB page size
`define OR1200_DTLB_INDXW 6 // 6 for 64 entry DTLB 7 for 128 entries
`define OR1200_DTLB_INDXL `OR1200_DMMU_PS // 13 13
`define OR1200_DTLB_INDXH `OR1200_DMMU_PS+`OR1200_DTLB_INDXW-1 // 18 19
`define OR1200_DTLB_INDX `OR1200_DTLB_INDXH:`OR1200_DTLB_INDXL // 18:13 19:13
`define OR1200_DTLB_TAGW 32-`OR1200_DTLB_INDXW-`OR1200_DMMU_PS // 13 12
`define OR1200_DTLB_TAGL `OR1200_DTLB_INDXH+1 // 19 20
`define OR1200_DTLB_TAG 31:`OR1200_DTLB_TAGL // 31:19 31:20
`define OR1200_DTLBMRW `OR1200_DTLB_TAGW+1 // +1 because of V bit
`define OR1200_DTLBTRW 32-`OR1200_DMMU_PS+5 // +5 because of protection bits and CI
 
//
// Cache inhibit while DMMU is not enabled/implemented
//
// cache inhibited 0GB-4GB 1'b1
// cache inhibited 0GB-2GB !dcpu_adr_i[31]
// cache inhibited 0GB-1GB 2GB-3GB !dcpu_adr_i[30]
// cache inhibited 1GB-2GB 3GB-4GB dcpu_adr_i[30]
// cache inhibited 2GB-4GB (default) dcpu_adr_i[31]
// cached 0GB-4GB 1'b0
//
`define OR1200_DMMU_CI dcpu_adr_i[31]
 
 
//////////////////////////////////////////////
//
// Insn MMU (IMMU)
//
 
//
// Address that selects between TLB TR and MR
//
`define OR1200_ITLB_TM_ADDR 7
 
//
// ITLBMR fields
//
`define OR1200_ITLBMR_V_BITS 0
`define OR1200_ITLBMR_CID_BITS 4:1
`define OR1200_ITLBMR_RES_BITS 11:5
`define OR1200_ITLBMR_VPN_BITS 31:13
 
//
// ITLBTR fields
//
`define OR1200_ITLBTR_CC_BITS 0
`define OR1200_ITLBTR_CI_BITS 1
`define OR1200_ITLBTR_WBC_BITS 2
`define OR1200_ITLBTR_WOM_BITS 3
`define OR1200_ITLBTR_A_BITS 4
`define OR1200_ITLBTR_D_BITS 5
`define OR1200_ITLBTR_SXE_BITS 6
`define OR1200_ITLBTR_UXE_BITS 7
`define OR1200_ITLBTR_RES_BITS 11:8
`define OR1200_ITLBTR_PPN_BITS 31:13
 
//
// ITLB configuration
//
`define OR1200_IMMU_PS 13 // 13 for 8KB page size
`define OR1200_ITLB_INDXW 6 // 6 for 64 entry ITLB 7 for 128 entries
`define OR1200_ITLB_INDXL `OR1200_IMMU_PS // 13 13
`define OR1200_ITLB_INDXH `OR1200_IMMU_PS+`OR1200_ITLB_INDXW-1 // 18 19
`define OR1200_ITLB_INDX `OR1200_ITLB_INDXH:`OR1200_ITLB_INDXL // 18:13 19:13
`define OR1200_ITLB_TAGW 32-`OR1200_ITLB_INDXW-`OR1200_IMMU_PS // 13 12
`define OR1200_ITLB_TAGL `OR1200_ITLB_INDXH+1 // 19 20
`define OR1200_ITLB_TAG 31:`OR1200_ITLB_TAGL // 31:19 31:20
`define OR1200_ITLBMRW `OR1200_ITLB_TAGW+1 // +1 because of V bit
`define OR1200_ITLBTRW 32-`OR1200_IMMU_PS+3 // +3 because of protection bits and CI
 
//
// Cache inhibit while IMMU is not enabled/implemented
// Note: all combinations that use icpu_adr_i cause async loop
//
// cache inhibited 0GB-4GB 1'b1
// cache inhibited 0GB-2GB !icpu_adr_i[31]
// cache inhibited 0GB-1GB 2GB-3GB !icpu_adr_i[30]
// cache inhibited 1GB-2GB 3GB-4GB icpu_adr_i[30]
// cache inhibited 2GB-4GB (default) icpu_adr_i[31]
// cached 0GB-4GB 1'b0
//
`define OR1200_IMMU_CI 1'b0
 
 
/////////////////////////////////////////////////
//
// Insn cache (IC)
//
 
// 3 for 8 bytes, 4 for 16 bytes etc
`define OR1200_ICLS 4
 
//
// IC configurations
//
`ifdef OR1200_IC_1W_4KB
`define OR1200_ICSIZE 12 // 4096
`define OR1200_ICINDX `OR1200_ICSIZE-2 // 10
`define OR1200_ICINDXH `OR1200_ICSIZE-1 // 11
`define OR1200_ICTAGL `OR1200_ICINDXH+1 // 12
`define OR1200_ICTAG `OR1200_ICSIZE-`OR1200_ICLS // 8
`define OR1200_ICTAG_W 21
`endif
`ifdef OR1200_IC_1W_8KB
`define OR1200_ICSIZE 13 // 8192
`define OR1200_ICINDX `OR1200_ICSIZE-2 // 11
`define OR1200_ICINDXH `OR1200_ICSIZE-1 // 12
`define OR1200_ICTAGL `OR1200_ICINDXH+1 // 13
`define OR1200_ICTAG `OR1200_ICSIZE-`OR1200_ICLS // 9
`define OR1200_ICTAG_W 20
`endif
 
 
/////////////////////////////////////////////////
//
// Data cache (DC)
//
 
// 3 for 8 bytes, 4 for 16 bytes etc
`define OR1200_DCLS 4
 
// Define to perform store refill (potential performance penalty)
// `define OR1200_DC_STORE_REFILL
 
//
// DC configurations
//
`ifdef OR1200_DC_1W_4KB
`define OR1200_DCSIZE 12 // 4096
`define OR1200_DCINDX `OR1200_DCSIZE-2 // 10
`define OR1200_DCINDXH `OR1200_DCSIZE-1 // 11
`define OR1200_DCTAGL `OR1200_DCINDXH+1 // 12
`define OR1200_DCTAG `OR1200_DCSIZE-`OR1200_DCLS // 8
`define OR1200_DCTAG_W 21
`endif
`ifdef OR1200_DC_1W_8KB
`define OR1200_DCSIZE 13 // 8192
`define OR1200_DCINDX `OR1200_DCSIZE-2 // 11
`define OR1200_DCINDXH `OR1200_DCSIZE-1 // 12
`define OR1200_DCTAGL `OR1200_DCINDXH+1 // 13
`define OR1200_DCTAG `OR1200_DCSIZE-`OR1200_DCLS // 9
`define OR1200_DCTAG_W 20
`endif
 
/////////////////////////////////////////////////
//
// Store buffer (SB)
//
 
//
// Store buffer
//
// It will improve performance by "caching" CPU stores
// using store buffer. This is most important for function
// prologues because DC can only work in write though mode
// and all stores would have to complete external WB writes
// to memory.
// Store buffer is between DC and data BIU.
// All stores will be stored into store buffer and immediately
// completed by the CPU, even though actual external writes
// will be performed later. As a consequence store buffer masks
// all data bus errors related to stores (data bus errors
// related to loads are delivered normally).
// All pending CPU loads will wait until store buffer is empty to
// ensure strict memory model. Right now this is necessary because
// we don't make destinction between cached and cache inhibited
// address space, so we simply empty store buffer until loads
// can begin.
//
// It makes design a bit bigger, depending what is the number of
// entries in SB FIFO. Number of entries can be changed further
// down.
//
//`define OR1200_SB_IMPLEMENTED
 
//
// Number of store buffer entries
//
// Verified number of entries are 4 and 8 entries
// (2 and 3 for OR1200_SB_LOG). OR1200_SB_ENTRIES must
// always match 2**OR1200_SB_LOG.
// To disable store buffer, undefine
// OR1200_SB_IMPLEMENTED.
//
`define OR1200_SB_LOG 2 // 2 or 3
`define OR1200_SB_ENTRIES 4 // 4 or 8
 
 
/////////////////////////////////////////////////
//
// Quick Embedded Memory (QMEM)
//
 
//
// Quick Embedded Memory
//
// Instantiation of dedicated insn/data memory (RAM or ROM).
// Insn fetch has effective throughput 1insn / clock cycle.
// Data load takes two clock cycles / access, data store
// takes 1 clock cycle / access (if there is no insn fetch)).
// Memory instantiation is shared between insn and data,
// meaning if insn fetch are performed, data load/store
// performance will be lower.
//
// Main reason for QMEM is to put some time critical functions
// into this memory and to have predictable and fast access
// to these functions. (soft fpu, context switch, exception
// handlers, stack, etc)
//
// It makes design a bit bigger and slower. QMEM sits behind
// IMMU/DMMU so all addresses are physical (so the MMUs can be
// used with QMEM and QMEM is seen by the CPU just like any other
// memory in the system). IC/DC are sitting behind QMEM so the
// whole design timing might be worse with QMEM implemented.
//
`define OR1200_QMEM_IMPLEMENTED
 
//
// Base address and mask of QMEM
//
// Base address defines first address of QMEM. Mask defines
// QMEM range in address space. Actual size of QMEM is however
// determined with instantiated RAM/ROM. However bigger
// mask will reserve more address space for QMEM, but also
// make design faster, while more tight mask will take
// less address space but also make design slower. If
// instantiated RAM/ROM is smaller than space reserved with
// the mask, instatiated RAM/ROM will also be shadowed
// at higher addresses in reserved space.
//
`define OR1200_QMEM_IADDR 32'h0080_0000
`define OR1200_QMEM_IMASK 32'hfff0_0000 // Max QMEM size 1MB
`define OR1200_QMEM_DADDR 32'h0080_0000
`define OR1200_QMEM_DMASK 32'hfff0_0000 // Max QMEM size 1MB
 
//
// QMEM interface byte-select capability
//
// To enable qmem_sel* ports, define this macro.
//
//`define OR1200_QMEM_BSEL
 
//
// QMEM interface acknowledge
//
// To enable qmem_ack port, define this macro.
//
//`define OR1200_QMEM_ACK
 
/////////////////////////////////////////////////////
//
// VR, UPR and Configuration Registers
//
//
// VR, UPR and configuration registers are optional. If
// implemented, operating system can automatically figure
// out how to use the processor because it knows
// what units are available in the processor and how they
// are configured.
//
// This section must be last in or1200_defines.v file so
// that all units are already configured and thus
// configuration registers are properly set.
//
 
// Define if you want configuration registers implemented
`define OR1200_CFGR_IMPLEMENTED
 
// Define if you want full address decode inside SYS group
`define OR1200_SYS_FULL_DECODE
 
// Offsets of VR, UPR and CFGR registers
`define OR1200_SPRGRP_SYS_VR 4'h0
`define OR1200_SPRGRP_SYS_UPR 4'h1
`define OR1200_SPRGRP_SYS_CPUCFGR 4'h2
`define OR1200_SPRGRP_SYS_DMMUCFGR 4'h3
`define OR1200_SPRGRP_SYS_IMMUCFGR 4'h4
`define OR1200_SPRGRP_SYS_DCCFGR 4'h5
`define OR1200_SPRGRP_SYS_ICCFGR 4'h6
`define OR1200_SPRGRP_SYS_DCFGR 4'h7
 
// VR fields
`define OR1200_VR_REV_BITS 5:0
`define OR1200_VR_RES1_BITS 15:6
`define OR1200_VR_CFG_BITS 23:16
`define OR1200_VR_VER_BITS 31:24
 
// VR values
`define OR1200_VR_REV 6'h01
`define OR1200_VR_RES1 10'h000
`define OR1200_VR_CFG 8'h00
`define OR1200_VR_VER 8'h12
 
// UPR fields
`define OR1200_UPR_UP_BITS 0
`define OR1200_UPR_DCP_BITS 1
`define OR1200_UPR_ICP_BITS 2
`define OR1200_UPR_DMP_BITS 3
`define OR1200_UPR_IMP_BITS 4
`define OR1200_UPR_MP_BITS 5
`define OR1200_UPR_DUP_BITS 6
`define OR1200_UPR_PCUP_BITS 7
`define OR1200_UPR_PMP_BITS 8
`define OR1200_UPR_PICP_BITS 9
`define OR1200_UPR_TTP_BITS 10
`define OR1200_UPR_RES1_BITS 23:11
`define OR1200_UPR_CUP_BITS 31:24
 
// UPR values
`define OR1200_UPR_UP 1'b1
`ifdef OR1200_NO_DC
`define OR1200_UPR_DCP 1'b0
`else
`define OR1200_UPR_DCP 1'b1
`endif
`ifdef OR1200_NO_IC
`define OR1200_UPR_ICP 1'b0
`else
`define OR1200_UPR_ICP 1'b1
`endif
`ifdef OR1200_NO_DMMU
`define OR1200_UPR_DMP 1'b0
`else
`define OR1200_UPR_DMP 1'b1
`endif
`ifdef OR1200_NO_IMMU
`define OR1200_UPR_IMP 1'b0
`else
`define OR1200_UPR_IMP 1'b1
`endif
`define OR1200_UPR_MP 1'b1 // MAC always present
`ifdef OR1200_DU_IMPLEMENTED
`define OR1200_UPR_DUP 1'b1
`else
`define OR1200_UPR_DUP 1'b0
`endif
`define OR1200_UPR_PCUP 1'b0 // Performance counters not present
`ifdef OR1200_DU_IMPLEMENTED
`define OR1200_UPR_PMP 1'b1
`else
`define OR1200_UPR_PMP 1'b0
`endif
`ifdef OR1200_DU_IMPLEMENTED
`define OR1200_UPR_PICP 1'b1
`else
`define OR1200_UPR_PICP 1'b0
`endif
`ifdef OR1200_DU_IMPLEMENTED
`define OR1200_UPR_TTP 1'b1
`else
`define OR1200_UPR_TTP 1'b0
`endif
`define OR1200_UPR_RES1 13'h0000
`define OR1200_UPR_CUP 8'h00
 
// CPUCFGR fields
`define OR1200_CPUCFGR_NSGF_BITS 3:0
`define OR1200_CPUCFGR_HGF_BITS 4
`define OR1200_CPUCFGR_OB32S_BITS 5
`define OR1200_CPUCFGR_OB64S_BITS 6
`define OR1200_CPUCFGR_OF32S_BITS 7
`define OR1200_CPUCFGR_OF64S_BITS 8
`define OR1200_CPUCFGR_OV64S_BITS 9
`define OR1200_CPUCFGR_RES1_BITS 31:10
 
// CPUCFGR values
`define OR1200_CPUCFGR_NSGF 4'h0
`define OR1200_CPUCFGR_HGF 1'b0
`define OR1200_CPUCFGR_OB32S 1'b1
`define OR1200_CPUCFGR_OB64S 1'b0
`define OR1200_CPUCFGR_OF32S 1'b0
`define OR1200_CPUCFGR_OF64S 1'b0
`define OR1200_CPUCFGR_OV64S 1'b0
`define OR1200_CPUCFGR_RES1 22'h000000
 
// DMMUCFGR fields
`define OR1200_DMMUCFGR_NTW_BITS 1:0
`define OR1200_DMMUCFGR_NTS_BITS 4:2
`define OR1200_DMMUCFGR_NAE_BITS 7:5
`define OR1200_DMMUCFGR_CRI_BITS 8
`define OR1200_DMMUCFGR_PRI_BITS 9
`define OR1200_DMMUCFGR_TEIRI_BITS 10
`define OR1200_DMMUCFGR_HTR_BITS 11
`define OR1200_DMMUCFGR_RES1_BITS 31:12
 
// DMMUCFGR values
`ifdef OR1200_NO_DMMU
`define OR1200_DMMUCFGR_NTW 2'h0 // Irrelevant
`define OR1200_DMMUCFGR_NTS 3'h0 // Irrelevant
`define OR1200_DMMUCFGR_NAE 3'h0 // Irrelevant
`define OR1200_DMMUCFGR_CRI 1'b0 // Irrelevant
`define OR1200_DMMUCFGR_PRI 1'b0 // Irrelevant
`define OR1200_DMMUCFGR_TEIRI 1'b0 // Irrelevant
`define OR1200_DMMUCFGR_HTR 1'b0 // Irrelevant
`define OR1200_DMMUCFGR_RES1 20'h00000
`else
`define OR1200_DMMUCFGR_NTW 2'h0 // 1 TLB way
`define OR1200_DMMUCFGR_NTS 3'h`OR1200_DTLB_INDXW // Num TLB sets
`define OR1200_DMMUCFGR_NAE 3'h0 // No ATB entries
`define OR1200_DMMUCFGR_CRI 1'b0 // No control register
`define OR1200_DMMUCFGR_PRI 1'b0 // No protection reg
`define OR1200_DMMUCFGR_TEIRI 1'b1 // TLB entry inv reg impl.
`define OR1200_DMMUCFGR_HTR 1'b0 // No HW TLB reload
`define OR1200_DMMUCFGR_RES1 20'h00000
`endif
 
// IMMUCFGR fields
`define OR1200_IMMUCFGR_NTW_BITS 1:0
`define OR1200_IMMUCFGR_NTS_BITS 4:2
`define OR1200_IMMUCFGR_NAE_BITS 7:5
`define OR1200_IMMUCFGR_CRI_BITS 8
`define OR1200_IMMUCFGR_PRI_BITS 9
`define OR1200_IMMUCFGR_TEIRI_BITS 10
`define OR1200_IMMUCFGR_HTR_BITS 11
`define OR1200_IMMUCFGR_RES1_BITS 31:12
 
// IMMUCFGR values
`ifdef OR1200_NO_IMMU
`define OR1200_IMMUCFGR_NTW 2'h0 // Irrelevant
`define OR1200_IMMUCFGR_NTS 3'h0 // Irrelevant
`define OR1200_IMMUCFGR_NAE 3'h0 // Irrelevant
`define OR1200_IMMUCFGR_CRI 1'b0 // Irrelevant
`define OR1200_IMMUCFGR_PRI 1'b0 // Irrelevant
`define OR1200_IMMUCFGR_TEIRI 1'b0 // Irrelevant
`define OR1200_IMMUCFGR_HTR 1'b0 // Irrelevant
`define OR1200_IMMUCFGR_RES1 20'h00000
`else
`define OR1200_IMMUCFGR_NTW 2'h0 // 1 TLB way
`define OR1200_IMMUCFGR_NTS 3'h`OR1200_ITLB_INDXW // Num TLB sets
`define OR1200_IMMUCFGR_NAE 3'h0 // No ATB entry
`define OR1200_IMMUCFGR_CRI 1'b0 // No control reg
`define OR1200_IMMUCFGR_PRI 1'b0 // No protection reg
`define OR1200_IMMUCFGR_TEIRI 1'b1 // TLB entry inv reg impl
`define OR1200_IMMUCFGR_HTR 1'b0 // No HW TLB reload
`define OR1200_IMMUCFGR_RES1 20'h00000
`endif
 
// DCCFGR fields
`define OR1200_DCCFGR_NCW_BITS 2:0
`define OR1200_DCCFGR_NCS_BITS 6:3
`define OR1200_DCCFGR_CBS_BITS 7
`define OR1200_DCCFGR_CWS_BITS 8
`define OR1200_DCCFGR_CCRI_BITS 9
`define OR1200_DCCFGR_CBIRI_BITS 10
`define OR1200_DCCFGR_CBPRI_BITS 11
`define OR1200_DCCFGR_CBLRI_BITS 12
`define OR1200_DCCFGR_CBFRI_BITS 13
`define OR1200_DCCFGR_CBWBRI_BITS 14
`define OR1200_DCCFGR_RES1_BITS 31:15
 
// DCCFGR values
`ifdef OR1200_NO_DC
`define OR1200_DCCFGR_NCW 3'h0 // Irrelevant
`define OR1200_DCCFGR_NCS 4'h0 // Irrelevant
`define OR1200_DCCFGR_CBS 1'b0 // Irrelevant
`define OR1200_DCCFGR_CWS 1'b0 // Irrelevant
`define OR1200_DCCFGR_CCRI 1'b1 // Irrelevant
`define OR1200_DCCFGR_CBIRI 1'b1 // Irrelevant
`define OR1200_DCCFGR_CBPRI 1'b0 // Irrelevant
`define OR1200_DCCFGR_CBLRI 1'b0 // Irrelevant
`define OR1200_DCCFGR_CBFRI 1'b1 // Irrelevant
`define OR1200_DCCFGR_CBWBRI 1'b0 // Irrelevant
`define OR1200_DCCFGR_RES1 17'h00000
`else
`define OR1200_DCCFGR_NCW 3'h0 // 1 cache way
`define OR1200_DCCFGR_NCS (`OR1200_DCTAG) // Num cache sets
`define OR1200_DCCFGR_CBS (`OR1200_DCLS-4) // 16 byte cache block
`define OR1200_DCCFGR_CWS 1'b0 // Write-through strategy
`define OR1200_DCCFGR_CCRI 1'b1 // Cache control reg impl.
`define OR1200_DCCFGR_CBIRI 1'b1 // Cache block inv reg impl.
`define OR1200_DCCFGR_CBPRI 1'b0 // Cache block prefetch reg not impl.
`define OR1200_DCCFGR_CBLRI 1'b0 // Cache block lock reg not impl.
`define OR1200_DCCFGR_CBFRI 1'b1 // Cache block flush reg impl.
`define OR1200_DCCFGR_CBWBRI 1'b0 // Cache block WB reg not impl.
`define OR1200_DCCFGR_RES1 17'h00000
`endif
 
// ICCFGR fields
`define OR1200_ICCFGR_NCW_BITS 2:0
`define OR1200_ICCFGR_NCS_BITS 6:3
`define OR1200_ICCFGR_CBS_BITS 7
`define OR1200_ICCFGR_CWS_BITS 8
`define OR1200_ICCFGR_CCRI_BITS 9
`define OR1200_ICCFGR_CBIRI_BITS 10
`define OR1200_ICCFGR_CBPRI_BITS 11
`define OR1200_ICCFGR_CBLRI_BITS 12
`define OR1200_ICCFGR_CBFRI_BITS 13
`define OR1200_ICCFGR_CBWBRI_BITS 14
`define OR1200_ICCFGR_RES1_BITS 31:15
 
// ICCFGR values
`ifdef OR1200_NO_IC
`define OR1200_ICCFGR_NCW 3'h0 // Irrelevant
`define OR1200_ICCFGR_NCS 4'h0 // Irrelevant
`define OR1200_ICCFGR_CBS 1'b0 // Irrelevant
`define OR1200_ICCFGR_CWS 1'b0 // Irrelevant
`define OR1200_ICCFGR_CCRI 1'b0 // Irrelevant
`define OR1200_ICCFGR_CBIRI 1'b0 // Irrelevant
`define OR1200_ICCFGR_CBPRI 1'b0 // Irrelevant
`define OR1200_ICCFGR_CBLRI 1'b0 // Irrelevant
`define OR1200_ICCFGR_CBFRI 1'b0 // Irrelevant
`define OR1200_ICCFGR_CBWBRI 1'b0 // Irrelevant
`define OR1200_ICCFGR_RES1 17'h00000
`else
`define OR1200_ICCFGR_NCW 3'h0 // 1 cache way
`define OR1200_ICCFGR_NCS (`OR1200_ICTAG) // Num cache sets
`define OR1200_ICCFGR_CBS (`OR1200_ICLS-4) // 16 byte cache block
`define OR1200_ICCFGR_CWS 1'b0 // Irrelevant
`define OR1200_ICCFGR_CCRI 1'b1 // Cache control reg impl.
`define OR1200_ICCFGR_CBIRI 1'b1 // Cache block inv reg impl.
`define OR1200_ICCFGR_CBPRI 1'b0 // Cache block prefetch reg not impl.
`define OR1200_ICCFGR_CBLRI 1'b0 // Cache block lock reg not impl.
`define OR1200_ICCFGR_CBFRI 1'b1 // Cache block flush reg impl.
`define OR1200_ICCFGR_CBWBRI 1'b0 // Irrelevant
`define OR1200_ICCFGR_RES1 17'h00000
`endif
 
// DCFGR fields
`define OR1200_DCFGR_NDP_BITS 2:0
`define OR1200_DCFGR_WPCI_BITS 3
`define OR1200_DCFGR_RES1_BITS 31:4
 
// DCFGR values
`ifdef OR1200_DU_HWBKPTS
`define OR1200_DCFGR_NDP 3'h`OR1200_DU_DVRDCR_PAIRS // # of DVR/DCR pairs
`ifdef OR1200_DU_DWCR0
`define OR1200_DCFGR_WPCI 1'b1
`else
`define OR1200_DCFGR_WPCI 1'b0 // WP counters not impl.
`endif
`else
`define OR1200_DCFGR_NDP 3'h0 // Zero DVR/DCR pairs
`define OR1200_DCFGR_WPCI 1'b0 // WP counters not impl.
`endif
`define OR1200_DCFGR_RES1 28'h0000000
/tags/rel_26/or1200/rtl/verilog/or1200_cpu.v
0,0 → 1,774
//////////////////////////////////////////////////////////////////////
//// ////
//// OR1200's CPU ////
//// ////
//// This file is part of the OpenRISC 1200 project ////
//// http://www.opencores.org/cores/or1k/ ////
//// ////
//// Description ////
//// Instantiation of internal CPU blocks. IFETCH, SPRS, FRZ, ////
//// ALU, EXCEPT, ID, WBMUX, OPERANDMUX, RF etc. ////
//// ////
//// To Do: ////
//// - make it smaller and faster ////
//// ////
//// Author(s): ////
//// - Damjan Lampret, lampret@opencores.org ////
//// ////
//////////////////////////////////////////////////////////////////////
//// ////
//// Copyright (C) 2000 Authors and OPENCORES.ORG ////
//// ////
//// This source file may be used and distributed without ////
//// restriction provided that this copyright statement is not ////
//// removed from the file and that any derivative work contains ////
//// the original copyright notice and the associated disclaimer. ////
//// ////
//// This source file is free software; you can redistribute it ////
//// and/or modify it under the terms of the GNU Lesser General ////
//// Public License as published by the Free Software Foundation; ////
//// either version 2.1 of the License, or (at your option) any ////
//// later version. ////
//// ////
//// This source is distributed in the hope that it will be ////
//// useful, but WITHOUT ANY WARRANTY; without even the implied ////
//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR ////
//// PURPOSE. See the GNU Lesser General Public License for more ////
//// details. ////
//// ////
//// You should have received a copy of the GNU Lesser General ////
//// Public License along with this source; if not, download it ////
//// from http://www.opencores.org/lgpl.shtml ////
//// ////
//////////////////////////////////////////////////////////////////////
//
// CVS Revision History
//
// $Log: not supported by cvs2svn $
// Revision 1.12.4.1 2003/12/09 11:46:48 simons
// Mbist nameing changed, Artisan ram instance signal names fixed, some synthesis waning fixed.
//
// Revision 1.12 2002/09/07 05:42:02 lampret
// Added optional SR[CY]. Added define to enable additional (compare) flag modifiers. Defines are OR1200_IMPL_ADDC and OR1200_ADDITIONAL_FLAG_MODIFIERS.
//
// Revision 1.11 2002/08/28 01:44:25 lampret
// Removed some commented RTL. Fixed SR/ESR flag bug.
//
// Revision 1.10 2002/07/14 22:17:17 lampret
// Added simple trace buffer [only for Xilinx Virtex target]. Fixed instruction fetch abort when new exception is recognized.
//
// Revision 1.9 2002/03/29 16:29:37 lampret
// Fixed some ports in instnatiations that were removed from the modules
//
// Revision 1.8 2002/03/29 15:16:54 lampret
// Some of the warnings fixed.
//
// Revision 1.7 2002/02/11 04:33:17 lampret
// Speed optimizations (removed duplicate _cyc_ and _stb_). Fixed D/IMMU cache-inhibit attr.
//
// Revision 1.6 2002/02/01 19:56:54 lampret
// Fixed combinational loops.
//
// Revision 1.5 2002/01/28 01:15:59 lampret
// Changed 'void' nop-ops instead of insn[0] to use insn[16]. Debug unit stalls the tick timer. Prepared new flag generation for add and and insns. Blocked DC/IC while they are turned off. Fixed I/D MMU SPRs layout except WAYs. TODO: smart IC invalidate, l.j 2 and TLB ways.
//
// Revision 1.4 2002/01/18 14:21:43 lampret
// Fixed 'the NPC single-step fix'.
//
// Revision 1.3 2002/01/18 07:56:00 lampret
// No more low/high priority interrupts (PICPR removed). Added tick timer exception. Added exception prefix (SR[EPH]). Fixed single-step bug whenreading NPC.
//
// Revision 1.2 2002/01/14 06:18:22 lampret
// Fixed mem2reg bug in FAST implementation. Updated debug unit to work with new genpc/if.
//
// Revision 1.1 2002/01/03 08:16:15 lampret
// New prefixes for RTL files, prefixed module names. Updated cache controllers and MMUs.
//
// Revision 1.19 2001/11/30 18:59:47 simons
// *** empty log message ***
//
// Revision 1.18 2001/11/23 21:42:31 simons
// Program counter divided to PPC and NPC.
//
// Revision 1.17 2001/11/23 08:38:51 lampret
// Changed DSR/DRR behavior and exception detection.
//
// Revision 1.16 2001/11/20 00:57:22 lampret
// Fixed width of du_except.
//
// Revision 1.15 2001/11/18 09:58:28 lampret
// Fixed some l.trap typos.
//
// Revision 1.14 2001/11/18 08:36:28 lampret
// For GDB changed single stepping and disabled trap exception.
//
// Revision 1.13 2001/11/13 10:02:21 lampret
// Added 'setpc'. Renamed some signals (except_flushpipe into flushpipe etc)
//
// Revision 1.12 2001/11/12 01:45:40 lampret
// Moved flag bit into SR. Changed RF enable from constant enable to dynamic enable for read ports.
//
// Revision 1.11 2001/11/10 03:43:57 lampret
// Fixed exceptions.
//
// Revision 1.10 2001/10/21 17:57:16 lampret
// Removed params from generic_XX.v. Added translate_off/on in sprs.v and id.v. Removed spr_addr from dc.v and ic.v. Fixed CR+LF.
//
// Revision 1.9 2001/10/14 13:12:09 lampret
// MP3 version.
//
// Revision 1.1.1.1 2001/10/06 10:18:35 igorm
// no message
//
// Revision 1.4 2001/08/17 08:01:19 lampret
// IC enable/disable.
//
// Revision 1.3 2001/08/13 03:36:20 lampret
// Added cfg regs. Moved all defines into one defines.v file. More cleanup.
//
// Revision 1.2 2001/08/09 13:39:33 lampret
// Major clean-up.
//
// Revision 1.1 2001/07/20 00:46:03 lampret
// Development version of RTL. Libraries are missing.
//
//
 
// synopsys translate_off
`include "timescale.v"
// synopsys translate_on
`include "or1200_defines.v"
 
module or1200_cpu(
// Clk & Rst
clk, rst,
 
// Insn interface
ic_en,
icpu_adr_o, icpu_cycstb_o, icpu_sel_o, icpu_tag_o,
icpu_dat_i, icpu_ack_i, icpu_rty_i, icpu_err_i, icpu_adr_i, icpu_tag_i,
immu_en,
 
// Debug unit
ex_insn, ex_freeze, id_pc, branch_op,
spr_dat_npc, rf_dataw,
du_stall, du_addr, du_dat_du, du_read, du_write, du_dsr, du_hwbkpt,
du_except, du_dat_cpu,
// Data interface
dc_en,
dcpu_adr_o, dcpu_cycstb_o, dcpu_we_o, dcpu_sel_o, dcpu_tag_o, dcpu_dat_o,
dcpu_dat_i, dcpu_ack_i, dcpu_rty_i, dcpu_err_i, dcpu_tag_i,
dmmu_en,
 
// Interrupt & tick exceptions
sig_int, sig_tick,
 
// SPR interface
supv, spr_addr, spr_dat_cpu, spr_dat_pic, spr_dat_tt, spr_dat_pm,
spr_dat_dmmu, spr_dat_immu, spr_dat_du, spr_cs, spr_we
);
 
parameter dw = `OR1200_OPERAND_WIDTH;
parameter aw = `OR1200_REGFILE_ADDR_WIDTH;
 
//
// I/O ports
//
 
//
// Clk & Rst
//
input clk;
input rst;
 
//
// Insn (IC) interface
//
output ic_en;
output [31:0] icpu_adr_o;
output icpu_cycstb_o;
output [3:0] icpu_sel_o;
output [3:0] icpu_tag_o;
input [31:0] icpu_dat_i;
input icpu_ack_i;
input icpu_rty_i;
input icpu_err_i;
input [31:0] icpu_adr_i;
input [3:0] icpu_tag_i;
 
//
// Insn (IMMU) interface
//
output immu_en;
 
//
// Debug interface
//
output [31:0] ex_insn;
output ex_freeze;
output [31:0] id_pc;
output [`OR1200_BRANCHOP_WIDTH-1:0] branch_op;
 
input du_stall;
input [dw-1:0] du_addr;
input [dw-1:0] du_dat_du;
input du_read;
input du_write;
input [`OR1200_DU_DSR_WIDTH-1:0] du_dsr;
input du_hwbkpt;
output [12:0] du_except;
output [dw-1:0] du_dat_cpu;
output [dw-1:0] rf_dataw;
 
//
// Data (DC) interface
//
output [31:0] dcpu_adr_o;
output dcpu_cycstb_o;
output dcpu_we_o;
output [3:0] dcpu_sel_o;
output [3:0] dcpu_tag_o;
output [31:0] dcpu_dat_o;
input [31:0] dcpu_dat_i;
input dcpu_ack_i;
input dcpu_rty_i;
input dcpu_err_i;
input [3:0] dcpu_tag_i;
output dc_en;
 
//
// Data (DMMU) interface
//
output dmmu_en;
 
//
// SPR interface
//
output supv;
input [dw-1:0] spr_dat_pic;
input [dw-1:0] spr_dat_tt;
input [dw-1:0] spr_dat_pm;
input [dw-1:0] spr_dat_dmmu;
input [dw-1:0] spr_dat_immu;
input [dw-1:0] spr_dat_du;
output [dw-1:0] spr_addr;
output [dw-1:0] spr_dat_cpu;
output [dw-1:0] spr_dat_npc;
output [31:0] spr_cs;
output spr_we;
 
//
// Interrupt exceptions
//
input sig_int;
input sig_tick;
 
//
// Internal wires
//
wire [31:0] if_insn;
wire [31:0] if_pc;
wire [31:2] lr_sav;
wire [aw-1:0] rf_addrw;
wire [aw-1:0] rf_addra;
wire [aw-1:0] rf_addrb;
wire rf_rda;
wire rf_rdb;
wire [dw-1:0] simm;
wire [dw-1:2] branch_addrofs;
wire [`OR1200_ALUOP_WIDTH-1:0] alu_op;
wire [`OR1200_SHROTOP_WIDTH-1:0] shrot_op;
wire [`OR1200_COMPOP_WIDTH-1:0] comp_op;
wire [`OR1200_BRANCHOP_WIDTH-1:0] branch_op;
wire [`OR1200_LSUOP_WIDTH-1:0] lsu_op;
wire genpc_freeze;
wire if_freeze;
wire id_freeze;
wire ex_freeze;
wire wb_freeze;
wire [`OR1200_SEL_WIDTH-1:0] sel_a;
wire [`OR1200_SEL_WIDTH-1:0] sel_b;
wire [`OR1200_RFWBOP_WIDTH-1:0] rfwb_op;
wire [dw-1:0] rf_dataw;
wire [dw-1:0] rf_dataa;
wire [dw-1:0] rf_datab;
wire [dw-1:0] muxed_b;
wire [dw-1:0] wb_forw;
wire wbforw_valid;
wire [dw-1:0] operand_a;
wire [dw-1:0] operand_b;
wire [dw-1:0] alu_dataout;
wire [dw-1:0] lsu_dataout;
wire [dw-1:0] sprs_dataout;
wire [31:0] lsu_addrofs;
wire [`OR1200_MULTICYCLE_WIDTH-1:0] multicycle;
wire [`OR1200_EXCEPT_WIDTH-1:0] except_type;
wire flushpipe;
wire extend_flush;
wire branch_taken;
wire flag;
wire flagforw;
wire flag_we;
wire carry;
wire cyforw;
wire cy_we;
wire lsu_stall;
wire epcr_we;
wire eear_we;
wire esr_we;
wire pc_we;
wire [31:0] epcr;
wire [31:0] eear;
wire [`OR1200_SR_WIDTH-1:0] esr;
wire sr_we;
wire [`OR1200_SR_WIDTH-1:0] to_sr;
wire [`OR1200_SR_WIDTH-1:0] sr;
wire except_start;
wire except_started;
wire [31:0] wb_insn;
wire [15:0] spr_addrimm;
wire sig_syscall;
wire sig_trap;
wire [31:0] spr_dat_cfgr;
wire [31:0] spr_dat_rf;
wire [31:0] spr_dat_npc;
wire [31:0] spr_dat_ppc;
wire [31:0] spr_dat_mac;
wire force_dslot_fetch;
wire no_more_dslot;
wire ex_void;
wire if_stall;
wire id_macrc_op;
wire ex_macrc_op;
wire [`OR1200_MACOP_WIDTH-1:0] mac_op;
wire [31:0] mult_mac_result;
wire mac_stall;
wire [12:0] except_stop;
wire genpc_refetch;
wire rfe;
wire lsu_unstall;
wire except_align;
wire except_dtlbmiss;
wire except_dmmufault;
wire except_illegal;
wire except_itlbmiss;
wire except_immufault;
wire except_ibuserr;
wire except_dbuserr;
wire abort_ex;
 
//
// Send exceptions to Debug Unit
//
assign du_except = except_stop;
 
//
// Data cache enable
//
assign dc_en = sr[`OR1200_SR_DCE];
 
//
// Instruction cache enable
//
assign ic_en = sr[`OR1200_SR_ICE];
 
//
// DMMU enable
//
assign dmmu_en = sr[`OR1200_SR_DME];
 
//
// IMMU enable
//
assign immu_en = sr[`OR1200_SR_IME];
 
//
// SUPV bit
//
assign supv = sr[`OR1200_SR_SM];
 
//
// Instantiation of instruction fetch block
//
or1200_genpc or1200_genpc(
.clk(clk),
.rst(rst),
.icpu_adr_o(icpu_adr_o),
.icpu_cycstb_o(icpu_cycstb_o),
.icpu_sel_o(icpu_sel_o),
.icpu_tag_o(icpu_tag_o),
.icpu_rty_i(icpu_rty_i),
.icpu_adr_i(icpu_adr_i),
 
.branch_op(branch_op),
.except_type(except_type),
.except_start(except_start),
.except_prefix(sr[`OR1200_SR_EPH]),
.branch_addrofs(branch_addrofs),
.lr_restor(operand_b),
.flag(flag),
.taken(branch_taken),
.binsn_addr(lr_sav),
.epcr(epcr),
.spr_dat_i(spr_dat_cpu),
.spr_pc_we(pc_we),
.genpc_refetch(genpc_refetch),
.genpc_freeze(genpc_freeze),
.genpc_stop_prefetch(1'b0),
.no_more_dslot(no_more_dslot)
);
 
//
// Instantiation of instruction fetch block
//
or1200_if or1200_if(
.clk(clk),
.rst(rst),
.icpu_dat_i(icpu_dat_i),
.icpu_ack_i(icpu_ack_i),
.icpu_err_i(icpu_err_i),
.icpu_adr_i(icpu_adr_i),
.icpu_tag_i(icpu_tag_i),
 
.if_freeze(if_freeze),
.if_insn(if_insn),
.if_pc(if_pc),
.flushpipe(flushpipe),
.if_stall(if_stall),
.no_more_dslot(no_more_dslot),
.genpc_refetch(genpc_refetch),
.rfe(rfe),
.except_itlbmiss(except_itlbmiss),
.except_immufault(except_immufault),
.except_ibuserr(except_ibuserr)
);
 
//
// Instantiation of instruction decode/control logic
//
or1200_ctrl or1200_ctrl(
.clk(clk),
.rst(rst),
.id_freeze(id_freeze),
.ex_freeze(ex_freeze),
.wb_freeze(wb_freeze),
.flushpipe(flushpipe),
.if_insn(if_insn),
.ex_insn(ex_insn),
.branch_op(branch_op),
.branch_taken(branch_taken),
.rf_addra(rf_addra),
.rf_addrb(rf_addrb),
.rf_rda(rf_rda),
.rf_rdb(rf_rdb),
.alu_op(alu_op),
.mac_op(mac_op),
.shrot_op(shrot_op),
.comp_op(comp_op),
.rf_addrw(rf_addrw),
.rfwb_op(rfwb_op),
.wb_insn(wb_insn),
.simm(simm),
.branch_addrofs(branch_addrofs),
.lsu_addrofs(lsu_addrofs),
.sel_a(sel_a),
.sel_b(sel_b),
.lsu_op(lsu_op),
.multicycle(multicycle),
.spr_addrimm(spr_addrimm),
.wbforw_valid(wbforw_valid),
.sig_syscall(sig_syscall),
.sig_trap(sig_trap),
.force_dslot_fetch(force_dslot_fetch),
.no_more_dslot(no_more_dslot),
.ex_void(ex_void),
.id_macrc_op(id_macrc_op),
.ex_macrc_op(ex_macrc_op),
.rfe(rfe),
.du_hwbkpt(du_hwbkpt),
.except_illegal(except_illegal)
);
 
//
// Instantiation of register file
//
or1200_rf or1200_rf(
.clk(clk),
.rst(rst),
.supv(sr[`OR1200_SR_SM]),
.wb_freeze(wb_freeze),
.addrw(rf_addrw),
.dataw(rf_dataw),
.id_freeze(id_freeze),
.we(rfwb_op[0]),
.flushpipe(flushpipe),
.addra(rf_addra),
.rda(rf_rda),
.dataa(rf_dataa),
.addrb(rf_addrb),
.rdb(rf_rdb),
.datab(rf_datab),
.spr_cs(spr_cs[`OR1200_SPR_GROUP_SYS]),
.spr_write(spr_we),
.spr_addr(spr_addr),
.spr_dat_i(spr_dat_cpu),
.spr_dat_o(spr_dat_rf)
);
 
//
// Instantiation of operand muxes
//
or1200_operandmuxes or1200_operandmuxes(
.clk(clk),
.rst(rst),
.id_freeze(id_freeze),
.ex_freeze(ex_freeze),
.rf_dataa(rf_dataa),
.rf_datab(rf_datab),
.ex_forw(rf_dataw),
.wb_forw(wb_forw),
.simm(simm),
.sel_a(sel_a),
.sel_b(sel_b),
.operand_a(operand_a),
.operand_b(operand_b),
.muxed_b(muxed_b)
);
 
//
// Instantiation of CPU's ALU
//
or1200_alu or1200_alu(
.a(operand_a),
.b(operand_b),
.mult_mac_result(mult_mac_result),
.macrc_op(ex_macrc_op),
.alu_op(alu_op),
.shrot_op(shrot_op),
.comp_op(comp_op),
.result(alu_dataout),
.flagforw(flagforw),
.flag_we(flag_we),
.cyforw(cyforw),
.cy_we(cy_we),
.carry(carry)
);
 
//
// Instantiation of CPU's ALU
//
or1200_mult_mac or1200_mult_mac(
.clk(clk),
.rst(rst),
.ex_freeze(ex_freeze),
.id_macrc_op(id_macrc_op),
.macrc_op(ex_macrc_op),
.a(operand_a),
.b(operand_b),
.mac_op(mac_op),
.alu_op(alu_op),
.result(mult_mac_result),
.mac_stall_r(mac_stall),
.spr_cs(spr_cs[`OR1200_SPR_GROUP_MAC]),
.spr_write(spr_we),
.spr_addr(spr_addr),
.spr_dat_i(spr_dat_cpu),
.spr_dat_o(spr_dat_mac)
);
 
//
// Instantiation of CPU's SPRS block
//
or1200_sprs or1200_sprs(
.clk(clk),
.rst(rst),
.addrbase(operand_a),
.addrofs(spr_addrimm),
.dat_i(operand_b),
.alu_op(alu_op),
.flagforw(flagforw),
.flag_we(flag_we),
.flag(flag),
.cyforw(cyforw),
.cy_we(cy_we),
.carry(carry),
.to_wbmux(sprs_dataout),
 
.du_addr(du_addr),
.du_dat_du(du_dat_du),
.du_read(du_read),
.du_write(du_write),
.du_dat_cpu(du_dat_cpu),
 
.spr_addr(spr_addr),
.spr_dat_pic(spr_dat_pic),
.spr_dat_tt(spr_dat_tt),
.spr_dat_pm(spr_dat_pm),
.spr_dat_cfgr(spr_dat_cfgr),
.spr_dat_rf(spr_dat_rf),
.spr_dat_npc(spr_dat_npc),
.spr_dat_ppc(spr_dat_ppc),
.spr_dat_mac(spr_dat_mac),
.spr_dat_dmmu(spr_dat_dmmu),
.spr_dat_immu(spr_dat_immu),
.spr_dat_du(spr_dat_du),
.spr_dat_o(spr_dat_cpu),
.spr_cs(spr_cs),
.spr_we(spr_we),
 
.epcr_we(epcr_we),
.eear_we(eear_we),
.esr_we(esr_we),
.pc_we(pc_we),
.epcr(epcr),
.eear(eear),
.esr(esr),
.except_started(except_started),
 
.sr_we(sr_we),
.to_sr(to_sr),
.sr(sr),
.branch_op(branch_op)
);
 
//
// Instantiation of load/store unit
//
or1200_lsu or1200_lsu(
.addrbase(operand_a),
.addrofs(lsu_addrofs),
.lsu_op(lsu_op),
.lsu_datain(operand_b),
.lsu_dataout(lsu_dataout),
.lsu_stall(lsu_stall),
.lsu_unstall(lsu_unstall),
.du_stall(du_stall),
.except_align(except_align),
.except_dtlbmiss(except_dtlbmiss),
.except_dmmufault(except_dmmufault),
.except_dbuserr(except_dbuserr),
 
.dcpu_adr_o(dcpu_adr_o),
.dcpu_cycstb_o(dcpu_cycstb_o),
.dcpu_we_o(dcpu_we_o),
.dcpu_sel_o(dcpu_sel_o),
.dcpu_tag_o(dcpu_tag_o),
.dcpu_dat_o(dcpu_dat_o),
.dcpu_dat_i(dcpu_dat_i),
.dcpu_ack_i(dcpu_ack_i),
.dcpu_rty_i(dcpu_rty_i),
.dcpu_err_i(dcpu_err_i),
.dcpu_tag_i(dcpu_tag_i)
);
 
//
// Instantiation of write-back muxes
//
or1200_wbmux or1200_wbmux(
.clk(clk),
.rst(rst),
.wb_freeze(wb_freeze),
.rfwb_op(rfwb_op),
.muxin_a(alu_dataout),
.muxin_b(lsu_dataout),
.muxin_c(sprs_dataout),
.muxin_d({lr_sav, 2'b0}),
.muxout(rf_dataw),
.muxreg(wb_forw),
.muxreg_valid(wbforw_valid)
);
 
//
// Instantiation of freeze logic
//
or1200_freeze or1200_freeze(
.clk(clk),
.rst(rst),
.multicycle(multicycle),
.flushpipe(flushpipe),
.extend_flush(extend_flush),
.lsu_stall(lsu_stall),
.if_stall(if_stall),
.lsu_unstall(lsu_unstall),
.force_dslot_fetch(force_dslot_fetch),
.abort_ex(abort_ex),
.du_stall(du_stall),
.mac_stall(mac_stall),
.genpc_freeze(genpc_freeze),
.if_freeze(if_freeze),
.id_freeze(id_freeze),
.ex_freeze(ex_freeze),
.wb_freeze(wb_freeze),
.icpu_ack_i(icpu_ack_i),
.icpu_err_i(icpu_err_i)
);
 
//
// Instantiation of exception block
//
or1200_except or1200_except(
.clk(clk),
.rst(rst),
.sig_ibuserr(except_ibuserr),
.sig_dbuserr(except_dbuserr),
.sig_illegal(except_illegal),
.sig_align(except_align),
.sig_range(1'b0),
.sig_dtlbmiss(except_dtlbmiss),
.sig_dmmufault(except_dmmufault),
.sig_int(sig_int),
.sig_syscall(sig_syscall),
.sig_trap(sig_trap),
.sig_itlbmiss(except_itlbmiss),
.sig_immufault(except_immufault),
.sig_tick(sig_tick),
.branch_taken(branch_taken),
.icpu_ack_i(icpu_ack_i),
.icpu_err_i(icpu_err_i),
.dcpu_ack_i(dcpu_ack_i),
.dcpu_err_i(dcpu_err_i),
.genpc_freeze(genpc_freeze),
.id_freeze(id_freeze),
.ex_freeze(ex_freeze),
.wb_freeze(wb_freeze),
.if_stall(if_stall),
.if_pc(if_pc),
.id_pc(id_pc),
.lr_sav(lr_sav),
.flushpipe(flushpipe),
.extend_flush(extend_flush),
.except_type(except_type),
.except_start(except_start),
.except_started(except_started),
.except_stop(except_stop),
.ex_void(ex_void),
.spr_dat_ppc(spr_dat_ppc),
.spr_dat_npc(spr_dat_npc),
 
.datain(operand_b),
.du_dsr(du_dsr),
.epcr_we(epcr_we),
.eear_we(eear_we),
.esr_we(esr_we),
.pc_we(pc_we),
.epcr(epcr),
.eear(eear),
.esr(esr),
 
.lsu_addr(dcpu_adr_o),
.sr_we(sr_we),
.to_sr(to_sr),
.sr(sr),
.abort_ex(abort_ex)
);
 
//
// Instantiation of configuration registers
//
or1200_cfgr or1200_cfgr(
.spr_addr(spr_addr),
.spr_dat_o(spr_dat_cfgr)
);
 
endmodule
/tags/rel_26/or1200/rtl/verilog/or1200_except.v
0,0 → 1,573
//////////////////////////////////////////////////////////////////////
//// ////
//// OR1200's Exception logic ////
//// ////
//// This file is part of the OpenRISC 1200 project ////
//// http://www.opencores.org/cores/or1k/ ////
//// ////
//// Description ////
//// Handles all OR1K exceptions inside CPU block. ////
//// ////
//// To Do: ////
//// - make it smaller and faster ////
//// ////
//// Author(s): ////
//// - Damjan Lampret, lampret@opencores.org ////
//// ////
//////////////////////////////////////////////////////////////////////
//// ////
//// Copyright (C) 2000 Authors and OPENCORES.ORG ////
//// ////
//// This source file may be used and distributed without ////
//// restriction provided that this copyright statement is not ////
//// removed from the file and that any derivative work contains ////
//// the original copyright notice and the associated disclaimer. ////
//// ////
//// This source file is free software; you can redistribute it ////
//// and/or modify it under the terms of the GNU Lesser General ////
//// Public License as published by the Free Software Foundation; ////
//// either version 2.1 of the License, or (at your option) any ////
//// later version. ////
//// ////
//// This source is distributed in the hope that it will be ////
//// useful, but WITHOUT ANY WARRANTY; without even the implied ////
//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR ////
//// PURPOSE. See the GNU Lesser General Public License for more ////
//// details. ////
//// ////
//// You should have received a copy of the GNU Lesser General ////
//// Public License along with this source; if not, download it ////
//// from http://www.opencores.org/lgpl.shtml ////
//// ////
//////////////////////////////////////////////////////////////////////
//
// CVS Revision History
//
// $Log: not supported by cvs2svn $
// Revision 1.15 2003/04/20 22:23:57 lampret
// No functional change. Only added customization for exception vectors.
//
// Revision 1.14 2002/09/03 22:28:21 lampret
// As per Taylor Su suggestion all case blocks are full case by default and optionally (OR1200_CASE_DEFAULT) can be disabled to increase clock frequncy.
//
// Revision 1.13 2002/08/28 01:44:25 lampret
// Removed some commented RTL. Fixed SR/ESR flag bug.
//
// Revision 1.12 2002/08/22 02:16:45 lampret
// Fixed IMMU bug.
//
// Revision 1.11 2002/08/18 19:54:28 lampret
// Added store buffer.
//
// Revision 1.10 2002/07/14 22:17:17 lampret
// Added simple trace buffer [only for Xilinx Virtex target]. Fixed instruction fetch abort when new exception is recognized.
//
// Revision 1.9 2002/02/11 04:33:17 lampret
// Speed optimizations (removed duplicate _cyc_ and _stb_). Fixed D/IMMU cache-inhibit attr.
//
// Revision 1.8 2002/01/28 01:16:00 lampret
// Changed 'void' nop-ops instead of insn[0] to use insn[16]. Debug unit stalls the tick timer. Prepared new flag generation for add and and insns. Blocked DC/IC while they are turned off. Fixed I/D MMU SPRs layout except WAYs. TODO: smart IC invalidate, l.j 2 and TLB ways.
//
// Revision 1.7 2002/01/23 07:52:36 lampret
// Changed default reset values for SR and ESR to match or1ksim's. Fixed flop model in or1200_dpram_32x32 when OR1200_XILINX_RAM32X1D is defined.
//
// Revision 1.6 2002/01/18 14:21:43 lampret
// Fixed 'the NPC single-step fix'.
//
// Revision 1.5 2002/01/18 07:56:00 lampret
// No more low/high priority interrupts (PICPR removed). Added tick timer exception. Added exception prefix (SR[EPH]). Fixed single-step bug whenreading NPC.
//
// Revision 1.4 2002/01/14 21:11:50 lampret
// Changed alignment exception EPCR. Not tested yet.
//
// Revision 1.3 2002/01/14 19:09:57 lampret
// Fixed order of syscall and range exceptions.
//
// Revision 1.2 2002/01/14 06:18:22 lampret
// Fixed mem2reg bug in FAST implementation. Updated debug unit to work with new genpc/if.
//
// Revision 1.1 2002/01/03 08:16:15 lampret
// New prefixes for RTL files, prefixed module names. Updated cache controllers and MMUs.
//
// Revision 1.15 2001/11/27 23:13:11 lampret
// Fixed except_stop width and fixed EX PC for 1400444f no-ops.
//
// Revision 1.14 2001/11/23 08:38:51 lampret
// Changed DSR/DRR behavior and exception detection.
//
// Revision 1.13 2001/11/20 18:46:15 simons
// Break point bug fixed
//
// Revision 1.12 2001/11/18 09:58:28 lampret
// Fixed some l.trap typos.
//
// Revision 1.11 2001/11/18 08:36:28 lampret
// For GDB changed single stepping and disabled trap exception.
//
// Revision 1.10 2001/11/13 10:02:21 lampret
// Added 'setpc'. Renamed some signals (except_flushpipe into flushpipe etc)
//
// Revision 1.9 2001/11/10 03:43:57 lampret
// Fixed exceptions.
//
// Revision 1.8 2001/10/21 17:57:16 lampret
// Removed params from generic_XX.v. Added translate_off/on in sprs.v and id.v. Removed spr_addr from dc.v and ic.v. Fixed CR+LF.
//
// Revision 1.7 2001/10/14 13:12:09 lampret
// MP3 version.
//
// Revision 1.1.1.1 2001/10/06 10:18:36 igorm
// no message
//
// Revision 1.2 2001/08/09 13:39:33 lampret
// Major clean-up.
//
// Revision 1.1 2001/07/20 00:46:03 lampret
// Development version of RTL. Libraries are missing.
//
//
 
// synopsys translate_off
`include "timescale.v"
// synopsys translate_on
`include "or1200_defines.v"
 
`define OR1200_EXCEPTFSM_WIDTH 3
`define OR1200_EXCEPTFSM_IDLE `OR1200_EXCEPTFSM_WIDTH'd0
`define OR1200_EXCEPTFSM_FLU1 `OR1200_EXCEPTFSM_WIDTH'd1
`define OR1200_EXCEPTFSM_FLU2 `OR1200_EXCEPTFSM_WIDTH'd2
`define OR1200_EXCEPTFSM_FLU3 `OR1200_EXCEPTFSM_WIDTH'd3
`define OR1200_EXCEPTFSM_FLU4 `OR1200_EXCEPTFSM_WIDTH'd4
`define OR1200_EXCEPTFSM_FLU5 `OR1200_EXCEPTFSM_WIDTH'd5
 
//
// Exception recognition and sequencing
//
 
module or1200_except(
// Clock and reset
clk, rst,
 
// Internal i/f
sig_ibuserr, sig_dbuserr, sig_illegal, sig_align, sig_range, sig_dtlbmiss, sig_dmmufault,
sig_int, sig_syscall, sig_trap, sig_itlbmiss, sig_immufault, sig_tick,
branch_taken, genpc_freeze, id_freeze, ex_freeze, wb_freeze, if_stall,
if_pc, id_pc, lr_sav, flushpipe, extend_flush, except_type, except_start,
except_started, except_stop, ex_void,
spr_dat_ppc, spr_dat_npc, datain, du_dsr, epcr_we, eear_we, esr_we, pc_we, epcr, eear,
esr, sr_we, to_sr, sr, lsu_addr, abort_ex, icpu_ack_i, icpu_err_i, dcpu_ack_i, dcpu_err_i
);
 
//
// I/O
//
input clk;
input rst;
input sig_ibuserr;
input sig_dbuserr;
input sig_illegal;
input sig_align;
input sig_range;
input sig_dtlbmiss;
input sig_dmmufault;
input sig_int;
input sig_syscall;
input sig_trap;
input sig_itlbmiss;
input sig_immufault;
input sig_tick;
input branch_taken;
input genpc_freeze;
input id_freeze;
input ex_freeze;
input wb_freeze;
input if_stall;
input [31:0] if_pc;
output [31:0] id_pc;
output [31:2] lr_sav;
input [31:0] datain;
input [`OR1200_DU_DSR_WIDTH-1:0] du_dsr;
input epcr_we;
input eear_we;
input esr_we;
input pc_we;
output [31:0] epcr;
output [31:0] eear;
output [`OR1200_SR_WIDTH-1:0] esr;
input [`OR1200_SR_WIDTH-1:0] to_sr;
input sr_we;
input [`OR1200_SR_WIDTH-1:0] sr;
input [31:0] lsu_addr;
output flushpipe;
output extend_flush;
output [`OR1200_EXCEPT_WIDTH-1:0] except_type;
output except_start;
output except_started;
output [12:0] except_stop;
input ex_void;
output [31:0] spr_dat_ppc;
output [31:0] spr_dat_npc;
output abort_ex;
input icpu_ack_i;
input icpu_err_i;
input dcpu_ack_i;
input dcpu_err_i;
 
//
// Internal regs and wires
//
reg [`OR1200_EXCEPT_WIDTH-1:0] except_type;
reg [31:0] id_pc;
reg [31:0] ex_pc;
reg [31:0] wb_pc;
reg [31:0] epcr;
reg [31:0] eear;
reg [`OR1200_SR_WIDTH-1:0] esr;
reg [2:0] id_exceptflags;
reg [2:0] ex_exceptflags;
reg [`OR1200_EXCEPTFSM_WIDTH-1:0] state;
reg extend_flush;
reg extend_flush_last;
reg ex_dslot;
reg delayed1_ex_dslot;
reg delayed2_ex_dslot;
wire except_started;
wire [12:0] except_trig;
wire except_flushpipe;
reg [2:0] delayed_iee;
reg [2:0] delayed_tee;
wire int_pending;
wire tick_pending;
 
//
// Simple combinatorial logic
//
assign except_started = extend_flush & except_start;
assign lr_sav = ex_pc[31:2];
assign spr_dat_ppc = wb_pc;
assign spr_dat_npc = ex_void ? id_pc : ex_pc;
assign except_start = (except_type != `OR1200_EXCEPT_NONE) & extend_flush;
assign int_pending = sig_int & sr[`OR1200_SR_IEE] & delayed_iee[2] & ~ex_freeze & ~branch_taken & ~ex_dslot;
assign tick_pending = sig_tick & sr[`OR1200_SR_TEE] & ~ex_freeze & ~branch_taken & ~ex_dslot;
assign abort_ex = sig_dbuserr | sig_dmmufault | sig_dtlbmiss | sig_align | sig_illegal; // Abort write into RF by load & other instructions
 
//
// Order defines exception detection priority
//
assign except_trig = {
tick_pending & ~du_dsr[`OR1200_DU_DSR_TTE],
int_pending & ~du_dsr[`OR1200_DU_DSR_IE],
ex_exceptflags[1] & ~du_dsr[`OR1200_DU_DSR_IME],
ex_exceptflags[0] & ~du_dsr[`OR1200_DU_DSR_IPFE],
ex_exceptflags[2] & ~du_dsr[`OR1200_DU_DSR_BUSEE],
sig_illegal & ~du_dsr[`OR1200_DU_DSR_IIE],
sig_align & ~du_dsr[`OR1200_DU_DSR_AE],
sig_dtlbmiss & ~du_dsr[`OR1200_DU_DSR_DME],
sig_dmmufault & ~du_dsr[`OR1200_DU_DSR_DPFE],
sig_dbuserr & ~du_dsr[`OR1200_DU_DSR_BUSEE],
sig_range & ~du_dsr[`OR1200_DU_DSR_RE],
sig_trap & ~du_dsr[`OR1200_DU_DSR_TE] & ~ex_freeze,
sig_syscall & ~du_dsr[`OR1200_DU_DSR_SCE] & ~ex_freeze
};
assign except_stop = {
tick_pending & du_dsr[`OR1200_DU_DSR_TTE],
int_pending & du_dsr[`OR1200_DU_DSR_IE],
ex_exceptflags[1] & du_dsr[`OR1200_DU_DSR_IME],
ex_exceptflags[0] & du_dsr[`OR1200_DU_DSR_IPFE],
ex_exceptflags[2] & du_dsr[`OR1200_DU_DSR_BUSEE],
sig_illegal & du_dsr[`OR1200_DU_DSR_IIE],
sig_align & du_dsr[`OR1200_DU_DSR_AE],
sig_dtlbmiss & du_dsr[`OR1200_DU_DSR_DME],
sig_dmmufault & du_dsr[`OR1200_DU_DSR_DPFE],
sig_dbuserr & du_dsr[`OR1200_DU_DSR_BUSEE],
sig_range & du_dsr[`OR1200_DU_DSR_RE],
sig_trap & du_dsr[`OR1200_DU_DSR_TE] & ~ex_freeze,
sig_syscall & du_dsr[`OR1200_DU_DSR_SCE] & ~ex_freeze
};
 
//
// PC and Exception flags pipelines
//
always @(posedge clk or posedge rst) begin
if (rst) begin
id_pc <= #1 32'd0;
id_exceptflags <= #1 3'b000;
end
else if (flushpipe) begin
id_pc <= #1 32'h0000_0000;
id_exceptflags <= #1 3'b000;
end
else if (!id_freeze) begin
id_pc <= #1 if_pc;
id_exceptflags <= #1 { sig_ibuserr, sig_itlbmiss, sig_immufault };
end
end
 
//
// delayed_iee
//
// SR[IEE] should not enable interrupts right away
// when it is restored with l.rfe. Instead delayed_iee
// together with SR[IEE] enables interrupts once
// pipeline is again ready.
//
always @(posedge rst or posedge clk)
if (rst)
delayed_iee <= #1 3'b000;
else if (!sr[`OR1200_SR_IEE])
delayed_iee <= #1 3'b000;
else
delayed_iee <= #1 {delayed_iee[1:0], 1'b1};
 
//
// delayed_tee
//
// SR[TEE] should not enable tick exceptions right away
// when it is restored with l.rfe. Instead delayed_tee
// together with SR[TEE] enables tick exceptions once
// pipeline is again ready.
//
always @(posedge rst or posedge clk)
if (rst)
delayed_tee <= #1 3'b000;
else if (!sr[`OR1200_SR_TEE])
delayed_tee <= #1 3'b000;
else
delayed_tee <= #1 {delayed_tee[1:0], 1'b1};
 
//
// PC and Exception flags pipelines
//
always @(posedge clk or posedge rst) begin
if (rst) begin
ex_dslot <= #1 1'b0;
ex_pc <= #1 32'd0;
ex_exceptflags <= #1 3'b000;
delayed1_ex_dslot <= #1 1'b0;
delayed2_ex_dslot <= #1 1'b0;
end
else if (flushpipe) begin
ex_dslot <= #1 1'b0;
ex_pc <= #1 32'h0000_0000;
ex_exceptflags <= #1 3'b000;
delayed1_ex_dslot <= #1 1'b0;
delayed2_ex_dslot <= #1 1'b0;
end
else if (!ex_freeze & id_freeze) begin
ex_dslot <= #1 1'b0;
ex_pc <= #1 id_pc;
ex_exceptflags <= #1 3'b000;
delayed1_ex_dslot <= #1 ex_dslot;
delayed2_ex_dslot <= #1 delayed1_ex_dslot;
end
else if (!ex_freeze) begin
ex_dslot <= #1 branch_taken;
ex_pc <= #1 id_pc;
ex_exceptflags <= #1 id_exceptflags;
delayed1_ex_dslot <= #1 ex_dslot;
delayed2_ex_dslot <= #1 delayed1_ex_dslot;
end
end
 
//
// PC and Exception flags pipelines
//
always @(posedge clk or posedge rst) begin
if (rst) begin
wb_pc <= #1 32'd0;
end
else if (!wb_freeze) begin
wb_pc <= #1 ex_pc;
end
end
 
//
// Flush pipeline
//
assign flushpipe = except_flushpipe | pc_we | extend_flush;
 
//
// We have started execution of exception handler:
// 1. Asserted for 3 clock cycles
// 2. Don't execute any instruction that is still in pipeline and is not part of exception handler
//
assign except_flushpipe = |except_trig & !state;
 
//
// Exception FSM that sequences execution of exception handler
//
// except_type signals which exception handler we start fetching in:
// 1. Asserted in next clock cycle after exception is recognized
//
always @(posedge clk or posedge rst) begin
if (rst) begin
state <= #1 `OR1200_EXCEPTFSM_IDLE;
except_type <= #1 `OR1200_EXCEPT_NONE;
extend_flush <= #1 1'b0;
epcr <= #1 32'b0;
eear <= #1 32'b0;
esr <= #1 {1'b1, {`OR1200_SR_WIDTH-2{1'b0}}, 1'b1};
extend_flush_last <= #1 1'b0;
end
else begin
`ifdef OR1200_CASE_DEFAULT
case (state) // synopsys parallel_case
`else
case (state) // synopsys full_case parallel_case
`endif
`OR1200_EXCEPTFSM_IDLE:
if (except_flushpipe) begin
state <= #1 `OR1200_EXCEPTFSM_FLU1;
extend_flush <= #1 1'b1;
esr <= #1 sr_we ? to_sr : sr;
casex (except_trig)
`ifdef OR1200_EXCEPT_TICK
13'b1_xxxx_xxxx_xxxx: begin
except_type <= #1 `OR1200_EXCEPT_TICK;
epcr <= #1 ex_dslot ? wb_pc : delayed1_ex_dslot ? id_pc : delayed2_ex_dslot ? id_pc : id_pc;
end
`endif
`ifdef OR1200_EXCEPT_INT
13'b0_1xxx_xxxx_xxxx: begin
except_type <= #1 `OR1200_EXCEPT_INT;
epcr <= #1 ex_dslot ? wb_pc : delayed1_ex_dslot ? id_pc : delayed2_ex_dslot ? id_pc : id_pc;
end
`endif
`ifdef OR1200_EXCEPT_ITLBMISS
13'b0_01xx_xxxx_xxxx: begin
except_type <= #1 `OR1200_EXCEPT_ITLBMISS;
//
// itlb miss exception and active ex_dslot caused wb_pc to put into eear instead of +4 address of ex_pc (or id_pc since it was equal to ex_pc?)
// eear <= #1 ex_dslot ? wb_pc : delayed1_ex_dslot ? id_pc : delayed2_ex_dslot ? id_pc : id_pc;
// mmu-icdc-O2 ex_pc only OK when no ex_dslot eear <= #1 ex_dslot ? ex_pc : delayed1_ex_dslot ? id_pc : delayed2_ex_dslot ? id_pc : id_pc;
// mmu-icdc-O2 ex_pc only OK when no ex_dslot epcr <= #1 ex_dslot ? wb_pc : delayed1_ex_dslot ? id_pc : delayed2_ex_dslot ? id_pc : id_pc;
eear <= #1 ex_dslot ? ex_pc : ex_pc;
epcr <= #1 ex_dslot ? wb_pc : ex_pc;
// eear <= #1 ex_dslot ? ex_pc : delayed1_ex_dslot ? id_pc : delayed2_ex_dslot ? id_pc : id_pc;
// epcr <= #1 ex_dslot ? wb_pc : delayed1_ex_dslot ? id_pc : delayed2_ex_dslot ? id_pc : id_pc;
end
`endif
`ifdef OR1200_EXCEPT_IPF
13'b0_001x_xxxx_xxxx: begin
except_type <= #1 `OR1200_EXCEPT_IPF;
//
// ipf exception and active ex_dslot caused wb_pc to put into eear instead of +4 address of ex_pc (or id_pc since it was equal to ex_pc?)
// eear <= #1 ex_dslot ? wb_pc : delayed1_ex_dslot ? id_pc : delayed2_ex_dslot ? id_pc : id_pc;
eear <= #1 ex_dslot ? ex_pc : delayed1_ex_dslot ? id_pc : delayed2_ex_dslot ? id_pc : id_pc;
epcr <= #1 ex_dslot ? wb_pc : delayed1_ex_dslot ? id_pc : delayed2_ex_dslot ? id_pc : id_pc;
end
`endif
`ifdef OR1200_EXCEPT_BUSERR
13'b0_0001_xxxx_xxxx: begin
except_type <= #1 `OR1200_EXCEPT_BUSERR;
eear <= #1 ex_dslot ? wb_pc : ex_pc;
epcr <= #1 ex_dslot ? wb_pc : ex_pc;
end
`endif
`ifdef OR1200_EXCEPT_ILLEGAL
13'b0_0000_1xxx_xxxx: begin
except_type <= #1 `OR1200_EXCEPT_ILLEGAL;
eear <= #1 ex_pc;
epcr <= #1 ex_dslot ? wb_pc : ex_pc;
end
`endif
`ifdef OR1200_EXCEPT_ALIGN
13'b0_0000_01xx_xxxx: begin
except_type <= #1 `OR1200_EXCEPT_ALIGN;
eear <= #1 lsu_addr;
epcr <= #1 ex_dslot ? wb_pc : ex_pc;
end
`endif
`ifdef OR1200_EXCEPT_DTLBMISS
13'b0_0000_001x_xxxx: begin
except_type <= #1 `OR1200_EXCEPT_DTLBMISS;
eear <= #1 lsu_addr;
epcr <= #1 ex_dslot ? wb_pc : ex_pc;
end
`endif
`ifdef OR1200_EXCEPT_DPF
13'b0_0000_0001_xxxx: begin
except_type <= #1 `OR1200_EXCEPT_DPF;
eear <= #1 lsu_addr;
epcr <= #1 ex_dslot ? wb_pc : ex_pc;
end
`endif
`ifdef OR1200_EXCEPT_BUSERR
13'b0_0000_0000_1xxx: begin // Data Bus Error
except_type <= #1 `OR1200_EXCEPT_BUSERR;
eear <= #1 lsu_addr;
epcr <= #1 ex_dslot ? wb_pc : ex_pc;
end
`endif
`ifdef OR1200_EXCEPT_RANGE
13'b0_0000_0000_01xx: begin
except_type <= #1 `OR1200_EXCEPT_RANGE;
epcr <= #1 ex_dslot ? wb_pc : delayed1_ex_dslot ? id_pc : delayed2_ex_dslot ? id_pc : id_pc;
end
`endif
`ifdef OR1200_EXCEPT_TRAP 13'b0_0000_0000_001x: begin
except_type <= #1 `OR1200_EXCEPT_TRAP;
epcr <= #1 ex_dslot ? wb_pc : ex_pc;
end
`endif
`ifdef OR1200_EXCEPT_SYSCALL
13'b0_0000_0000_0001: begin
except_type <= #1 `OR1200_EXCEPT_SYSCALL;
epcr <= #1 ex_dslot ? wb_pc : delayed1_ex_dslot ? id_pc : delayed2_ex_dslot ? id_pc : id_pc;
end
`endif
default:
except_type <= #1 `OR1200_EXCEPT_NONE;
endcase
end
else if (pc_we) begin
state <= #1 `OR1200_EXCEPTFSM_FLU1;
extend_flush <= #1 1'b1;
end
else begin
if (epcr_we)
epcr <= #1 datain;
if (eear_we)
eear <= #1 datain;
if (esr_we)
esr <= #1 {1'b1, datain[`OR1200_SR_WIDTH-2:0]};
end
`OR1200_EXCEPTFSM_FLU1:
if (icpu_ack_i | icpu_err_i | genpc_freeze)
state <= #1 `OR1200_EXCEPTFSM_FLU2;
`OR1200_EXCEPTFSM_FLU2:
`ifdef OR1200_EXCEPT_TRAP
if (except_type == `OR1200_EXCEPT_TRAP) begin
state <= #1 `OR1200_EXCEPTFSM_IDLE;
extend_flush <= #1 1'b0;
extend_flush_last <= #1 1'b0;
except_type <= #1 `OR1200_EXCEPT_NONE;
end
else
`endif
state <= #1 `OR1200_EXCEPTFSM_FLU3;
`OR1200_EXCEPTFSM_FLU3:
begin
state <= #1 `OR1200_EXCEPTFSM_FLU4;
end
`OR1200_EXCEPTFSM_FLU4: begin
state <= #1 `OR1200_EXCEPTFSM_FLU5;
extend_flush <= #1 1'b0;
extend_flush_last <= #1 1'b0; // damjan
end
`ifdef OR1200_CASE_DEFAULT
default: begin
`else
`OR1200_EXCEPTFSM_FLU5: begin
`endif
if (!if_stall && !id_freeze) begin
state <= #1 `OR1200_EXCEPTFSM_IDLE;
except_type <= #1 `OR1200_EXCEPT_NONE;
extend_flush_last <= #1 1'b0;
end
end
endcase
end
end
 
endmodule
/tags/rel_26/or1200/rtl/verilog/or1200_top.v
0,0 → 1,1037
//////////////////////////////////////////////////////////////////////
//// ////
//// OR1200 Top Level ////
//// ////
//// This file is part of the OpenRISC 1200 project ////
//// http://www.opencores.org/cores/or1k/ ////
//// ////
//// Description ////
//// OR1200 Top Level ////
//// ////
//// To Do: ////
//// - make it smaller and faster ////
//// ////
//// Author(s): ////
//// - Damjan Lampret, lampret@opencores.org ////
//// ////
//////////////////////////////////////////////////////////////////////
//// ////
//// Copyright (C) 2000 Authors and OPENCORES.ORG ////
//// ////
//// This source file may be used and distributed without ////
//// restriction provided that this copyright statement is not ////
//// removed from the file and that any derivative work contains ////
//// the original copyright notice and the associated disclaimer. ////
//// ////
//// This source file is free software; you can redistribute it ////
//// and/or modify it under the terms of the GNU Lesser General ////
//// Public License as published by the Free Software Foundation; ////
//// either version 2.1 of the License, or (at your option) any ////
//// later version. ////
//// ////
//// This source is distributed in the hope that it will be ////
//// useful, but WITHOUT ANY WARRANTY; without even the implied ////
//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR ////
//// PURPOSE. See the GNU Lesser General Public License for more ////
//// details. ////
//// ////
//// You should have received a copy of the GNU Lesser General ////
//// Public License along with this source; if not, download it ////
//// from http://www.opencores.org/lgpl.shtml ////
//// ////
//////////////////////////////////////////////////////////////////////
//
// CVS Revision History
//
// $Log: not supported by cvs2svn $
// Revision 1.10.4.8 2004/01/17 21:14:14 simons
// Errors fixed.
//
// Revision 1.10.4.7 2004/01/17 19:06:38 simons
// Error fixed.
//
// Revision 1.10.4.6 2004/01/17 18:39:48 simons
// Error fixed.
//
// Revision 1.10.4.5 2004/01/15 06:46:38 markom
// interface to debug changed; no more opselect; stb-ack protocol
//
// Revision 1.10.4.4 2003/12/09 11:46:49 simons
// Mbist nameing changed, Artisan ram instance signal names fixed, some synthesis waning fixed.
//
// Revision 1.10.4.3 2003/12/05 00:08:44 lampret
// Fixed instantiation name.
//
// Revision 1.10.4.2 2003/07/11 01:10:35 lampret
// Added three missing wire declarations. No functional changes.
//
// Revision 1.10.4.1 2003/07/08 15:36:37 lampret
// Added embedded memory QMEM.
//
// Revision 1.10 2002/12/08 08:57:56 lampret
// Added optional support for WB B3 specification (xwb_cti_o, xwb_bte_o). Made xwb_cab_o optional.
//
// Revision 1.9 2002/10/17 20:04:41 lampret
// Added BIST scan. Special VS RAMs need to be used to implement BIST.
//
// Revision 1.8 2002/08/18 19:54:22 lampret
// Added store buffer.
//
// Revision 1.7 2002/07/14 22:17:17 lampret
// Added simple trace buffer [only for Xilinx Virtex target]. Fixed instruction fetch abort when new exception is recognized.
//
// Revision 1.6 2002/03/29 15:16:56 lampret
// Some of the warnings fixed.
//
// Revision 1.5 2002/02/11 04:33:17 lampret
// Speed optimizations (removed duplicate _cyc_ and _stb_). Fixed D/IMMU cache-inhibit attr.
//
// Revision 1.4 2002/02/01 19:56:55 lampret
// Fixed combinational loops.
//
// Revision 1.3 2002/01/28 01:16:00 lampret
// Changed 'void' nop-ops instead of insn[0] to use insn[16]. Debug unit stalls the tick timer. Prepared new flag generation for add and and insns. Blocked DC/IC while they are turned off. Fixed I/D MMU SPRs layout except WAYs. TODO: smart IC invalidate, l.j 2 and TLB ways.
//
// Revision 1.2 2002/01/18 07:56:00 lampret
// No more low/high priority interrupts (PICPR removed). Added tick timer exception. Added exception prefix (SR[EPH]). Fixed single-step bug whenreading NPC.
//
// Revision 1.1 2002/01/03 08:16:15 lampret
// New prefixes for RTL files, prefixed module names. Updated cache controllers and MMUs.
//
// Revision 1.13 2001/11/23 08:38:51 lampret
// Changed DSR/DRR behavior and exception detection.
//
// Revision 1.12 2001/11/20 00:57:22 lampret
// Fixed width of du_except.
//
// Revision 1.11 2001/11/18 08:36:28 lampret
// For GDB changed single stepping and disabled trap exception.
//
// Revision 1.10 2001/10/21 17:57:16 lampret
// Removed params from generic_XX.v. Added translate_off/on in sprs.v and id.v. Removed spr_addr from dc.v and ic.v. Fixed CR+LF.
//
// Revision 1.9 2001/10/14 13:12:10 lampret
// MP3 version.
//
// Revision 1.1.1.1 2001/10/06 10:18:35 igorm
// no message
//
// Revision 1.4 2001/08/13 03:36:20 lampret
// Added cfg regs. Moved all defines into one defines.v file. More cleanup.
//
// Revision 1.3 2001/08/09 13:39:33 lampret
// Major clean-up.
//
// Revision 1.2 2001/07/22 03:31:54 lampret
// Fixed RAM's oen bug. Cache bypass under development.
//
// Revision 1.1 2001/07/20 00:46:21 lampret
// Development version of RTL. Libraries are missing.
//
//
 
// synopsys translate_off
`include "timescale.v"
// synopsys translate_on
`include "or1200_defines.v"
 
module or1200_top(
// System
clk_i, rst_i, pic_ints_i, clmode_i,
 
// Instruction WISHBONE INTERFACE
iwb_clk_i, iwb_rst_i, iwb_ack_i, iwb_err_i, iwb_rty_i, iwb_dat_i,
iwb_cyc_o, iwb_adr_o, iwb_stb_o, iwb_we_o, iwb_sel_o, iwb_dat_o,
`ifdef OR1200_WB_CAB
iwb_cab_o,
`endif
`ifdef OR1200_WB_B3
iwb_cti_o, iwb_bte_o,
`endif
// Data WISHBONE INTERFACE
dwb_clk_i, dwb_rst_i, dwb_ack_i, dwb_err_i, dwb_rty_i, dwb_dat_i,
dwb_cyc_o, dwb_adr_o, dwb_stb_o, dwb_we_o, dwb_sel_o, dwb_dat_o,
`ifdef OR1200_WB_CAB
dwb_cab_o,
`endif
`ifdef OR1200_WB_B3
dwb_cti_o, dwb_bte_o,
`endif
 
// External Debug Interface
dbg_stall_i, dbg_ewt_i, dbg_lss_o, dbg_is_o, dbg_wp_o, dbg_bp_o,
dbg_stb_i, dbg_we_i, dbg_adr_i, dbg_dat_i, dbg_dat_o, dbg_ack_o,
`ifdef OR1200_BIST
// RAM BIST
mbist_si_i, mbist_so_o, mbist_ctrl_i,
`endif
// Power Management
pm_cpustall_i,
pm_clksd_o, pm_dc_gate_o, pm_ic_gate_o, pm_dmmu_gate_o,
pm_immu_gate_o, pm_tt_gate_o, pm_cpu_gate_o, pm_wakeup_o, pm_lvolt_o
 
);
 
parameter dw = `OR1200_OPERAND_WIDTH;
parameter aw = `OR1200_OPERAND_WIDTH;
parameter ppic_ints = `OR1200_PIC_INTS;
 
//
// I/O
//
 
//
// System
//
input clk_i;
input rst_i;
input [1:0] clmode_i; // 00 WB=RISC, 01 WB=RISC/2, 10 N/A, 11 WB=RISC/4
input [ppic_ints-1:0] pic_ints_i;
 
//
// Instruction WISHBONE interface
//
input iwb_clk_i; // clock input
input iwb_rst_i; // reset input
input iwb_ack_i; // normal termination
input iwb_err_i; // termination w/ error
input iwb_rty_i; // termination w/ retry
input [dw-1:0] iwb_dat_i; // input data bus
output iwb_cyc_o; // cycle valid output
output [aw-1:0] iwb_adr_o; // address bus outputs
output iwb_stb_o; // strobe output
output iwb_we_o; // indicates write transfer
output [3:0] iwb_sel_o; // byte select outputs
output [dw-1:0] iwb_dat_o; // output data bus
`ifdef OR1200_WB_CAB
output iwb_cab_o; // indicates consecutive address burst
`endif
`ifdef OR1200_WB_B3
output [2:0] iwb_cti_o; // cycle type identifier
output [1:0] iwb_bte_o; // burst type extension
`endif
 
//
// Data WISHBONE interface
//
input dwb_clk_i; // clock input
input dwb_rst_i; // reset input
input dwb_ack_i; // normal termination
input dwb_err_i; // termination w/ error
input dwb_rty_i; // termination w/ retry
input [dw-1:0] dwb_dat_i; // input data bus
output dwb_cyc_o; // cycle valid output
output [aw-1:0] dwb_adr_o; // address bus outputs
output dwb_stb_o; // strobe output
output dwb_we_o; // indicates write transfer
output [3:0] dwb_sel_o; // byte select outputs
output [dw-1:0] dwb_dat_o; // output data bus
`ifdef OR1200_WB_CAB
output dwb_cab_o; // indicates consecutive address burst
`endif
`ifdef OR1200_WB_B3
output [2:0] dwb_cti_o; // cycle type identifier
output [1:0] dwb_bte_o; // burst type extension
`endif
 
//
// External Debug Interface
//
input dbg_stall_i; // External Stall Input
input dbg_ewt_i; // External Watchpoint Trigger Input
output [3:0] dbg_lss_o; // External Load/Store Unit Status
output [1:0] dbg_is_o; // External Insn Fetch Status
output [10:0] dbg_wp_o; // Watchpoints Outputs
output dbg_bp_o; // Breakpoint Output
input dbg_stb_i; // External Address/Data Strobe
input dbg_we_i; // External Write Enable
input [aw-1:0] dbg_adr_i; // External Address Input
input [dw-1:0] dbg_dat_i; // External Data Input
output [dw-1:0] dbg_dat_o; // External Data Output
output dbg_ack_o; // External Data Acknowledge (not WB compatible)
 
`ifdef OR1200_BIST
//
// RAM BIST
//
input mbist_si_i;
input [`OR1200_MBIST_CTRL_WIDTH - 1:0] mbist_ctrl_i;
output mbist_so_o;
`endif
 
//
// Power Management
//
input pm_cpustall_i;
output [3:0] pm_clksd_o;
output pm_dc_gate_o;
output pm_ic_gate_o;
output pm_dmmu_gate_o;
output pm_immu_gate_o;
output pm_tt_gate_o;
output pm_cpu_gate_o;
output pm_wakeup_o;
output pm_lvolt_o;
 
 
//
// Internal wires and regs
//
 
//
// DC to SB
//
wire [dw-1:0] dcsb_dat_dc;
wire [aw-1:0] dcsb_adr_dc;
wire dcsb_cyc_dc;
wire dcsb_stb_dc;
wire dcsb_we_dc;
wire [3:0] dcsb_sel_dc;
wire dcsb_cab_dc;
wire [dw-1:0] dcsb_dat_sb;
wire dcsb_ack_sb;
wire dcsb_err_sb;
 
//
// SB to BIU
//
wire [dw-1:0] sbbiu_dat_sb;
wire [aw-1:0] sbbiu_adr_sb;
wire sbbiu_cyc_sb;
wire sbbiu_stb_sb;
wire sbbiu_we_sb;
wire [3:0] sbbiu_sel_sb;
wire sbbiu_cab_sb;
wire [dw-1:0] sbbiu_dat_biu;
wire sbbiu_ack_biu;
wire sbbiu_err_biu;
 
//
// IC to BIU
//
wire [dw-1:0] icbiu_dat_ic;
wire [aw-1:0] icbiu_adr_ic;
wire icbiu_cyc_ic;
wire icbiu_stb_ic;
wire icbiu_we_ic;
wire [3:0] icbiu_sel_ic;
wire [3:0] icbiu_tag_ic;
wire icbiu_cab_ic;
wire [dw-1:0] icbiu_dat_biu;
wire icbiu_ack_biu;
wire icbiu_err_biu;
wire [3:0] icbiu_tag_biu;
 
//
// CPU's SPR access to various RISC units (shared wires)
//
wire supv;
wire [aw-1:0] spr_addr;
wire [dw-1:0] spr_dat_cpu;
wire [31:0] spr_cs;
wire spr_we;
 
//
// DMMU and CPU
//
wire dmmu_en;
wire [31:0] spr_dat_dmmu;
 
//
// DMMU and QMEM
//
wire qmemdmmu_err_qmem;
wire [3:0] qmemdmmu_tag_qmem;
wire [aw-1:0] qmemdmmu_adr_dmmu;
wire qmemdmmu_cycstb_dmmu;
wire qmemdmmu_ci_dmmu;
 
//
// CPU and data memory subsystem
//
wire dc_en;
wire [31:0] dcpu_adr_cpu;
wire dcpu_cycstb_cpu;
wire dcpu_we_cpu;
wire [3:0] dcpu_sel_cpu;
wire [3:0] dcpu_tag_cpu;
wire [31:0] dcpu_dat_cpu;
wire [31:0] dcpu_dat_qmem;
wire dcpu_ack_qmem;
wire dcpu_rty_qmem;
wire dcpu_err_dmmu;
wire [3:0] dcpu_tag_dmmu;
 
//
// IMMU and CPU
//
wire immu_en;
wire [31:0] spr_dat_immu;
 
//
// CPU and insn memory subsystem
//
wire ic_en;
wire [31:0] icpu_adr_cpu;
wire icpu_cycstb_cpu;
wire [3:0] icpu_sel_cpu;
wire [3:0] icpu_tag_cpu;
wire [31:0] icpu_dat_qmem;
wire icpu_ack_qmem;
wire [31:0] icpu_adr_immu;
wire icpu_err_immu;
wire [3:0] icpu_tag_immu;
wire icpu_rty_immu;
 
//
// IMMU and QMEM
//
wire [aw-1:0] qmemimmu_adr_immu;
wire qmemimmu_rty_qmem;
wire qmemimmu_err_qmem;
wire [3:0] qmemimmu_tag_qmem;
wire qmemimmu_cycstb_immu;
wire qmemimmu_ci_immu;
 
//
// QMEM and IC
//
wire [aw-1:0] icqmem_adr_qmem;
wire icqmem_rty_ic;
wire icqmem_err_ic;
wire [3:0] icqmem_tag_ic;
wire icqmem_cycstb_qmem;
wire icqmem_ci_qmem;
wire [31:0] icqmem_dat_ic;
wire icqmem_ack_ic;
 
//
// QMEM and DC
//
wire [aw-1:0] dcqmem_adr_qmem;
wire dcqmem_rty_dc;
wire dcqmem_err_dc;
wire [3:0] dcqmem_tag_dc;
wire dcqmem_cycstb_qmem;
wire dcqmem_ci_qmem;
wire [31:0] dcqmem_dat_dc;
wire [31:0] dcqmem_dat_qmem;
wire dcqmem_we_qmem;
wire [3:0] dcqmem_sel_qmem;
wire dcqmem_ack_dc;
 
//
// Connection between CPU and PIC
//
wire [dw-1:0] spr_dat_pic;
wire pic_wakeup;
wire sig_int;
 
//
// Connection between CPU and PM
//
wire [dw-1:0] spr_dat_pm;
 
//
// CPU and TT
//
wire [dw-1:0] spr_dat_tt;
wire sig_tick;
 
//
// Debug port and caches/MMUs
//
wire [dw-1:0] spr_dat_du;
wire du_stall;
wire [dw-1:0] du_addr;
wire [dw-1:0] du_dat_du;
wire du_read;
wire du_write;
wire [12:0] du_except;
wire [`OR1200_DU_DSR_WIDTH-1:0] du_dsr;
wire [dw-1:0] du_dat_cpu;
wire du_hwbkpt;
 
wire ex_freeze;
wire [31:0] ex_insn;
wire [31:0] id_pc;
wire [`OR1200_BRANCHOP_WIDTH-1:0] branch_op;
wire [31:0] spr_dat_npc;
wire [31:0] rf_dataw;
 
`ifdef OR1200_BIST
//
// RAM BIST
//
wire mbist_immu_so;
wire mbist_ic_so;
wire mbist_dmmu_so;
wire mbist_dc_so;
wire mbist_qmem_so;
wire mbist_immu_si = mbist_si_i;
wire mbist_ic_si = mbist_immu_so;
wire mbist_qmem_si = mbist_ic_so;
wire mbist_dmmu_si = mbist_qmem_so;
wire mbist_dc_si = mbist_dmmu_so;
assign mbist_so_o = mbist_dc_so;
`endif
 
wire [3:0] icqmem_sel_qmem;
wire [3:0] icqmem_tag_qmem;
wire [3:0] dcqmem_tag_qmem;
 
//
// Instantiation of Instruction WISHBONE BIU
//
or1200_iwb_biu iwb_biu(
// RISC clk, rst and clock control
.clk(clk_i),
.rst(rst_i),
.clmode(clmode_i),
 
// WISHBONE interface
.wb_clk_i(iwb_clk_i),
.wb_rst_i(iwb_rst_i),
.wb_ack_i(iwb_ack_i),
.wb_err_i(iwb_err_i),
.wb_rty_i(iwb_rty_i),
.wb_dat_i(iwb_dat_i),
.wb_cyc_o(iwb_cyc_o),
.wb_adr_o(iwb_adr_o),
.wb_stb_o(iwb_stb_o),
.wb_we_o(iwb_we_o),
.wb_sel_o(iwb_sel_o),
.wb_dat_o(iwb_dat_o),
`ifdef OR1200_WB_CAB
.wb_cab_o(iwb_cab_o),
`endif
`ifdef OR1200_WB_B3
.wb_cti_o(iwb_cti_o),
.wb_bte_o(iwb_bte_o),
`endif
 
// Internal RISC bus
.biu_dat_i(icbiu_dat_ic),
.biu_adr_i(icbiu_adr_ic),
.biu_cyc_i(icbiu_cyc_ic),
.biu_stb_i(icbiu_stb_ic),
.biu_we_i(icbiu_we_ic),
.biu_sel_i(icbiu_sel_ic),
.biu_cab_i(icbiu_cab_ic),
.biu_dat_o(icbiu_dat_biu),
.biu_ack_o(icbiu_ack_biu),
.biu_err_o(icbiu_err_biu)
);
 
//
// Instantiation of Data WISHBONE BIU
//
or1200_wb_biu dwb_biu(
// RISC clk, rst and clock control
.clk(clk_i),
.rst(rst_i),
.clmode(clmode_i),
 
// WISHBONE interface
.wb_clk_i(dwb_clk_i),
.wb_rst_i(dwb_rst_i),
.wb_ack_i(dwb_ack_i),
.wb_err_i(dwb_err_i),
.wb_rty_i(dwb_rty_i),
.wb_dat_i(dwb_dat_i),
.wb_cyc_o(dwb_cyc_o),
.wb_adr_o(dwb_adr_o),
.wb_stb_o(dwb_stb_o),
.wb_we_o(dwb_we_o),
.wb_sel_o(dwb_sel_o),
.wb_dat_o(dwb_dat_o),
`ifdef OR1200_WB_CAB
.wb_cab_o(dwb_cab_o),
`endif
`ifdef OR1200_WB_B3
.wb_cti_o(dwb_cti_o),
.wb_bte_o(dwb_bte_o),
`endif
 
// Internal RISC bus
.biu_dat_i(sbbiu_dat_sb),
.biu_adr_i(sbbiu_adr_sb),
.biu_cyc_i(sbbiu_cyc_sb),
.biu_stb_i(sbbiu_stb_sb),
.biu_we_i(sbbiu_we_sb),
.biu_sel_i(sbbiu_sel_sb),
.biu_cab_i(sbbiu_cab_sb),
.biu_dat_o(sbbiu_dat_biu),
.biu_ack_o(sbbiu_ack_biu),
.biu_err_o(sbbiu_err_biu)
);
 
//
// Instantiation of IMMU
//
or1200_immu_top or1200_immu_top(
// Rst and clk
.clk(clk_i),
.rst(rst_i),
 
`ifdef OR1200_BIST
// RAM BIST
.mbist_si_i(mbist_immu_si),
.mbist_so_o(mbist_immu_so),
.mbist_ctrl_i(mbist_ctrl_i),
`endif
 
// CPU and IMMU
.ic_en(ic_en),
.immu_en(immu_en),
.supv(supv),
.icpu_adr_i(icpu_adr_cpu),
.icpu_cycstb_i(icpu_cycstb_cpu),
.icpu_adr_o(icpu_adr_immu),
.icpu_tag_o(icpu_tag_immu),
.icpu_rty_o(icpu_rty_immu),
.icpu_err_o(icpu_err_immu),
 
// SPR access
.spr_cs(spr_cs[`OR1200_SPR_GROUP_IMMU]),
.spr_write(spr_we),
.spr_addr(spr_addr),
.spr_dat_i(spr_dat_cpu),
.spr_dat_o(spr_dat_immu),
 
// QMEM and IMMU
.qmemimmu_rty_i(qmemimmu_rty_qmem),
.qmemimmu_err_i(qmemimmu_err_qmem),
.qmemimmu_tag_i(qmemimmu_tag_qmem),
.qmemimmu_adr_o(qmemimmu_adr_immu),
.qmemimmu_cycstb_o(qmemimmu_cycstb_immu),
.qmemimmu_ci_o(qmemimmu_ci_immu)
);
 
//
// Instantiation of Instruction Cache
//
or1200_ic_top or1200_ic_top(
.clk(clk_i),
.rst(rst_i),
 
`ifdef OR1200_BIST
// RAM BIST
.mbist_si_i(mbist_ic_si),
.mbist_so_o(mbist_ic_so),
.mbist_ctrl_i(mbist_ctrl_i),
`endif
 
// IC and QMEM
.ic_en(ic_en),
.icqmem_adr_i(icqmem_adr_qmem),
.icqmem_cycstb_i(icqmem_cycstb_qmem),
.icqmem_ci_i(icqmem_ci_qmem),
.icqmem_sel_i(icqmem_sel_qmem),
.icqmem_tag_i(icqmem_tag_qmem),
.icqmem_dat_o(icqmem_dat_ic),
.icqmem_ack_o(icqmem_ack_ic),
.icqmem_rty_o(icqmem_rty_ic),
.icqmem_err_o(icqmem_err_ic),
.icqmem_tag_o(icqmem_tag_ic),
 
// SPR access
.spr_cs(spr_cs[`OR1200_SPR_GROUP_IC]),
.spr_write(spr_we),
.spr_dat_i(spr_dat_cpu),
 
// IC and BIU
.icbiu_dat_o(icbiu_dat_ic),
.icbiu_adr_o(icbiu_adr_ic),
.icbiu_cyc_o(icbiu_cyc_ic),
.icbiu_stb_o(icbiu_stb_ic),
.icbiu_we_o(icbiu_we_ic),
.icbiu_sel_o(icbiu_sel_ic),
.icbiu_cab_o(icbiu_cab_ic),
.icbiu_dat_i(icbiu_dat_biu),
.icbiu_ack_i(icbiu_ack_biu),
.icbiu_err_i(icbiu_err_biu)
);
 
//
// Instantiation of Instruction Cache
//
or1200_cpu or1200_cpu(
.clk(clk_i),
.rst(rst_i),
 
// Connection QMEM and IFETCHER inside CPU
.ic_en(ic_en),
.icpu_adr_o(icpu_adr_cpu),
.icpu_cycstb_o(icpu_cycstb_cpu),
.icpu_sel_o(icpu_sel_cpu),
.icpu_tag_o(icpu_tag_cpu),
.icpu_dat_i(icpu_dat_qmem),
.icpu_ack_i(icpu_ack_qmem),
.icpu_rty_i(icpu_rty_immu),
.icpu_adr_i(icpu_adr_immu),
.icpu_err_i(icpu_err_immu),
.icpu_tag_i(icpu_tag_immu),
 
// Connection CPU to external Debug port
.ex_freeze(ex_freeze),
.ex_insn(ex_insn),
.id_pc(id_pc),
.branch_op(branch_op),
.du_stall(du_stall),
.du_addr(du_addr),
.du_dat_du(du_dat_du),
.du_read(du_read),
.du_write(du_write),
.du_dsr(du_dsr),
.du_except(du_except),
.du_dat_cpu(du_dat_cpu),
.du_hwbkpt(du_hwbkpt),
.rf_dataw(rf_dataw),
 
 
// Connection IMMU and CPU internally
.immu_en(immu_en),
 
// Connection QMEM and CPU
.dc_en(dc_en),
.dcpu_adr_o(dcpu_adr_cpu),
.dcpu_cycstb_o(dcpu_cycstb_cpu),
.dcpu_we_o(dcpu_we_cpu),
.dcpu_sel_o(dcpu_sel_cpu),
.dcpu_tag_o(dcpu_tag_cpu),
.dcpu_dat_o(dcpu_dat_cpu),
.dcpu_dat_i(dcpu_dat_qmem),
.dcpu_ack_i(dcpu_ack_qmem),
.dcpu_rty_i(dcpu_rty_qmem),
.dcpu_err_i(dcpu_err_dmmu),
.dcpu_tag_i(dcpu_tag_dmmu),
 
// Connection DMMU and CPU internally
.dmmu_en(dmmu_en),
 
// Connection PIC and CPU's EXCEPT
.sig_int(sig_int),
.sig_tick(sig_tick),
 
// SPRs
.supv(supv),
.spr_addr(spr_addr),
.spr_dat_cpu(spr_dat_cpu),
.spr_dat_pic(spr_dat_pic),
.spr_dat_tt(spr_dat_tt),
.spr_dat_pm(spr_dat_pm),
.spr_dat_dmmu(spr_dat_dmmu),
.spr_dat_immu(spr_dat_immu),
.spr_dat_du(spr_dat_du),
.spr_dat_npc(spr_dat_npc),
.spr_cs(spr_cs),
.spr_we(spr_we)
);
 
//
// Instantiation of DMMU
//
or1200_dmmu_top or1200_dmmu_top(
// Rst and clk
.clk(clk_i),
.rst(rst_i),
 
`ifdef OR1200_BIST
// RAM BIST
.mbist_si_i(mbist_dmmu_si),
.mbist_so_o(mbist_dmmu_so),
.mbist_ctrl_i(mbist_ctrl_i),
`endif
 
// CPU i/f
.dc_en(dc_en),
.dmmu_en(dmmu_en),
.supv(supv),
.dcpu_adr_i(dcpu_adr_cpu),
.dcpu_cycstb_i(dcpu_cycstb_cpu),
.dcpu_we_i(dcpu_we_cpu),
.dcpu_tag_o(dcpu_tag_dmmu),
.dcpu_err_o(dcpu_err_dmmu),
 
// SPR access
.spr_cs(spr_cs[`OR1200_SPR_GROUP_DMMU]),
.spr_write(spr_we),
.spr_addr(spr_addr),
.spr_dat_i(spr_dat_cpu),
.spr_dat_o(spr_dat_dmmu),
 
// QMEM and DMMU
.qmemdmmu_err_i(qmemdmmu_err_qmem),
.qmemdmmu_tag_i(qmemdmmu_tag_qmem),
.qmemdmmu_adr_o(qmemdmmu_adr_dmmu),
.qmemdmmu_cycstb_o(qmemdmmu_cycstb_dmmu),
.qmemdmmu_ci_o(qmemdmmu_ci_dmmu)
);
 
//
// Instantiation of Data Cache
//
or1200_dc_top or1200_dc_top(
.clk(clk_i),
.rst(rst_i),
 
`ifdef OR1200_BIST
// RAM BIST
.mbist_si_i(mbist_dc_si),
.mbist_so_o(mbist_dc_so),
.mbist_ctrl_i(mbist_ctrl_i),
`endif
 
// DC and QMEM
.dc_en(dc_en),
.dcqmem_adr_i(dcqmem_adr_qmem),
.dcqmem_cycstb_i(dcqmem_cycstb_qmem),
.dcqmem_ci_i(dcqmem_ci_qmem),
.dcqmem_we_i(dcqmem_we_qmem),
.dcqmem_sel_i(dcqmem_sel_qmem),
.dcqmem_tag_i(dcqmem_tag_qmem),
.dcqmem_dat_i(dcqmem_dat_qmem),
.dcqmem_dat_o(dcqmem_dat_dc),
.dcqmem_ack_o(dcqmem_ack_dc),
.dcqmem_rty_o(dcqmem_rty_dc),
.dcqmem_err_o(dcqmem_err_dc),
.dcqmem_tag_o(dcqmem_tag_dc),
 
// SPR access
.spr_cs(spr_cs[`OR1200_SPR_GROUP_DC]),
.spr_write(spr_we),
.spr_dat_i(spr_dat_cpu),
 
// DC and BIU
.dcsb_dat_o(dcsb_dat_dc),
.dcsb_adr_o(dcsb_adr_dc),
.dcsb_cyc_o(dcsb_cyc_dc),
.dcsb_stb_o(dcsb_stb_dc),
.dcsb_we_o(dcsb_we_dc),
.dcsb_sel_o(dcsb_sel_dc),
.dcsb_cab_o(dcsb_cab_dc),
.dcsb_dat_i(dcsb_dat_sb),
.dcsb_ack_i(dcsb_ack_sb),
.dcsb_err_i(dcsb_err_sb)
);
 
//
// Instantiation of embedded memory - qmem
//
or1200_qmem_top or1200_qmem_top(
.clk(clk_i),
.rst(rst_i),
 
`ifdef OR1200_BIST
// RAM BIST
.mbist_si_i(mbist_qmem_si),
.mbist_so_o(mbist_qmem_so),
.mbist_ctrl_i(mbist_ctrl_i),
`endif
 
// QMEM and CPU/IMMU
.qmemimmu_adr_i(qmemimmu_adr_immu),
.qmemimmu_cycstb_i(qmemimmu_cycstb_immu),
.qmemimmu_ci_i(qmemimmu_ci_immu),
.qmemicpu_sel_i(icpu_sel_cpu),
.qmemicpu_tag_i(icpu_tag_cpu),
.qmemicpu_dat_o(icpu_dat_qmem),
.qmemicpu_ack_o(icpu_ack_qmem),
.qmemimmu_rty_o(qmemimmu_rty_qmem),
.qmemimmu_err_o(qmemimmu_err_qmem),
.qmemimmu_tag_o(qmemimmu_tag_qmem),
 
// QMEM and IC
.icqmem_adr_o(icqmem_adr_qmem),
.icqmem_cycstb_o(icqmem_cycstb_qmem),
.icqmem_ci_o(icqmem_ci_qmem),
.icqmem_sel_o(icqmem_sel_qmem),
.icqmem_tag_o(icqmem_tag_qmem),
.icqmem_dat_i(icqmem_dat_ic),
.icqmem_ack_i(icqmem_ack_ic),
.icqmem_rty_i(icqmem_rty_ic),
.icqmem_err_i(icqmem_err_ic),
.icqmem_tag_i(icqmem_tag_ic),
 
// QMEM and CPU/DMMU
.qmemdmmu_adr_i(qmemdmmu_adr_dmmu),
.qmemdmmu_cycstb_i(qmemdmmu_cycstb_dmmu),
.qmemdmmu_ci_i(qmemdmmu_ci_dmmu),
.qmemdcpu_we_i(dcpu_we_cpu),
.qmemdcpu_sel_i(dcpu_sel_cpu),
.qmemdcpu_tag_i(dcpu_tag_cpu),
.qmemdcpu_dat_i(dcpu_dat_cpu),
.qmemdcpu_dat_o(dcpu_dat_qmem),
.qmemdcpu_ack_o(dcpu_ack_qmem),
.qmemdcpu_rty_o(dcpu_rty_qmem),
.qmemdmmu_err_o(qmemdmmu_err_qmem),
.qmemdmmu_tag_o(qmemdmmu_tag_qmem),
 
// QMEM and DC
.dcqmem_adr_o(dcqmem_adr_qmem),
.dcqmem_cycstb_o(dcqmem_cycstb_qmem),
.dcqmem_ci_o(dcqmem_ci_qmem),
.dcqmem_we_o(dcqmem_we_qmem),
.dcqmem_sel_o(dcqmem_sel_qmem),
.dcqmem_tag_o(dcqmem_tag_qmem),
.dcqmem_dat_o(dcqmem_dat_qmem),
.dcqmem_dat_i(dcqmem_dat_dc),
.dcqmem_ack_i(dcqmem_ack_dc),
.dcqmem_rty_i(dcqmem_rty_dc),
.dcqmem_err_i(dcqmem_err_dc),
.dcqmem_tag_i(dcqmem_tag_dc)
);
 
//
// Instantiation of Store Buffer
//
or1200_sb or1200_sb(
// RISC clock, reset
.clk(clk_i),
.rst(rst_i),
 
// Internal RISC bus (DC<->SB)
.dcsb_dat_i(dcsb_dat_dc),
.dcsb_adr_i(dcsb_adr_dc),
.dcsb_cyc_i(dcsb_cyc_dc),
.dcsb_stb_i(dcsb_stb_dc),
.dcsb_we_i(dcsb_we_dc),
.dcsb_sel_i(dcsb_sel_dc),
.dcsb_cab_i(dcsb_cab_dc),
.dcsb_dat_o(dcsb_dat_sb),
.dcsb_ack_o(dcsb_ack_sb),
.dcsb_err_o(dcsb_err_sb),
 
// SB and BIU
.sbbiu_dat_o(sbbiu_dat_sb),
.sbbiu_adr_o(sbbiu_adr_sb),
.sbbiu_cyc_o(sbbiu_cyc_sb),
.sbbiu_stb_o(sbbiu_stb_sb),
.sbbiu_we_o(sbbiu_we_sb),
.sbbiu_sel_o(sbbiu_sel_sb),
.sbbiu_cab_o(sbbiu_cab_sb),
.sbbiu_dat_i(sbbiu_dat_biu),
.sbbiu_ack_i(sbbiu_ack_biu),
.sbbiu_err_i(sbbiu_err_biu)
);
 
//
// Instantiation of Debug Unit
//
or1200_du or1200_du(
// RISC Internal Interface
.clk(clk_i),
.rst(rst_i),
.dcpu_cycstb_i(dcpu_cycstb_cpu),
.dcpu_we_i(dcpu_we_cpu),
.dcpu_adr_i(dcpu_adr_cpu),
.dcpu_dat_lsu(dcpu_dat_cpu),
.dcpu_dat_dc(dcpu_dat_qmem),
.icpu_cycstb_i(icpu_cycstb_cpu),
.ex_freeze(ex_freeze),
.branch_op(branch_op),
.ex_insn(ex_insn),
.id_pc(id_pc),
.du_dsr(du_dsr),
 
// For Trace buffer
.spr_dat_npc(spr_dat_npc),
.rf_dataw(rf_dataw),
 
// DU's access to SPR unit
.du_stall(du_stall),
.du_addr(du_addr),
.du_dat_i(du_dat_cpu),
.du_dat_o(du_dat_du),
.du_read(du_read),
.du_write(du_write),
.du_except(du_except),
.du_hwbkpt(du_hwbkpt),
 
// Access to DU's SPRs
.spr_cs(spr_cs[`OR1200_SPR_GROUP_DU]),
.spr_write(spr_we),
.spr_addr(spr_addr),
.spr_dat_i(spr_dat_cpu),
.spr_dat_o(spr_dat_du),
 
// External Debug Interface
.dbg_stall_i(dbg_stall_i),
.dbg_ewt_i(dbg_ewt_i),
.dbg_lss_o(dbg_lss_o),
.dbg_is_o(dbg_is_o),
.dbg_wp_o(dbg_wp_o),
.dbg_bp_o(dbg_bp_o),
.dbg_stb_i(dbg_stb_i),
.dbg_we_i(dbg_we_i),
.dbg_adr_i(dbg_adr_i),
.dbg_dat_i(dbg_dat_i),
.dbg_dat_o(dbg_dat_o),
.dbg_ack_o(dbg_ack_o)
);
 
//
// Programmable interrupt controller
//
or1200_pic or1200_pic(
// RISC Internal Interface
.clk(clk_i),
.rst(rst_i),
.spr_cs(spr_cs[`OR1200_SPR_GROUP_PIC]),
.spr_write(spr_we),
.spr_addr(spr_addr),
.spr_dat_i(spr_dat_cpu),
.spr_dat_o(spr_dat_pic),
.pic_wakeup(pic_wakeup),
.int(sig_int),
 
// PIC Interface
.pic_int(pic_ints_i)
);
 
//
// Instantiation of Tick timer
//
or1200_tt or1200_tt(
// RISC Internal Interface
.clk(clk_i),
.rst(rst_i),
.du_stall(du_stall),
.spr_cs(spr_cs[`OR1200_SPR_GROUP_TT]),
.spr_write(spr_we),
.spr_addr(spr_addr),
.spr_dat_i(spr_dat_cpu),
.spr_dat_o(spr_dat_tt),
.int(sig_tick)
);
 
//
// Instantiation of Power Management
//
or1200_pm or1200_pm(
// RISC Internal Interface
.clk(clk_i),
.rst(rst_i),
.pic_wakeup(pic_wakeup),
.spr_write(spr_we),
.spr_addr(spr_addr),
.spr_dat_i(spr_dat_cpu),
.spr_dat_o(spr_dat_pm),
 
// Power Management Interface
.pm_cpustall(pm_cpustall_i),
.pm_clksd(pm_clksd_o),
.pm_dc_gate(pm_dc_gate_o),
.pm_ic_gate(pm_ic_gate_o),
.pm_dmmu_gate(pm_dmmu_gate_o),
.pm_immu_gate(pm_immu_gate_o),
.pm_tt_gate(pm_tt_gate_o),
.pm_cpu_gate(pm_cpu_gate_o),
.pm_wakeup(pm_wakeup_o),
.pm_lvolt(pm_lvolt_o)
);
 
 
endmodule
/tags/rel_26/or1200/rtl/verilog/or1200_ctrl.v
0,0 → 1,1007
//////////////////////////////////////////////////////////////////////
//// ////
//// OR1200's Instruction decode ////
//// ////
//// This file is part of the OpenRISC 1200 project ////
//// http://www.opencores.org/cores/or1k/ ////
//// ////
//// Description ////
//// Majority of instruction decoding is performed here. ////
//// ////
//// To Do: ////
//// - make it smaller and faster ////
//// ////
//// Author(s): ////
//// - Damjan Lampret, lampret@opencores.org ////
//// ////
//////////////////////////////////////////////////////////////////////
//// ////
//// Copyright (C) 2000 Authors and OPENCORES.ORG ////
//// ////
//// This source file may be used and distributed without ////
//// restriction provided that this copyright statement is not ////
//// removed from the file and that any derivative work contains ////
//// the original copyright notice and the associated disclaimer. ////
//// ////
//// This source file is free software; you can redistribute it ////
//// and/or modify it under the terms of the GNU Lesser General ////
//// Public License as published by the Free Software Foundation; ////
//// either version 2.1 of the License, or (at your option) any ////
//// later version. ////
//// ////
//// This source is distributed in the hope that it will be ////
//// useful, but WITHOUT ANY WARRANTY; without even the implied ////
//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR ////
//// PURPOSE. See the GNU Lesser General Public License for more ////
//// details. ////
//// ////
//// You should have received a copy of the GNU Lesser General ////
//// Public License along with this source; if not, download it ////
//// from http://www.opencores.org/lgpl.shtml ////
//// ////
//////////////////////////////////////////////////////////////////////
//
// CVS Revision History
//
// $Log: not supported by cvs2svn $
// Revision 1.8 2003/04/24 00:16:07 lampret
// No functional changes. Added defines to disable implementation of multiplier/MAC
//
// Revision 1.7 2002/09/07 05:42:02 lampret
// Added optional SR[CY]. Added define to enable additional (compare) flag modifiers. Defines are OR1200_IMPL_ADDC and OR1200_ADDITIONAL_FLAG_MODIFIERS.
//
// Revision 1.6 2002/03/29 15:16:54 lampret
// Some of the warnings fixed.
//
// Revision 1.5 2002/02/01 19:56:54 lampret
// Fixed combinational loops.
//
// Revision 1.4 2002/01/28 01:15:59 lampret
// Changed 'void' nop-ops instead of insn[0] to use insn[16]. Debug unit stalls the tick timer. Prepared new flag generation for add and and insns. Blocked DC/IC while they are turned off. Fixed I/D MMU SPRs layout except WAYs. TODO: smart IC invalidate, l.j 2 and TLB ways.
//
// Revision 1.3 2002/01/18 14:21:43 lampret
// Fixed 'the NPC single-step fix'.
//
// Revision 1.2 2002/01/14 06:18:22 lampret
// Fixed mem2reg bug in FAST implementation. Updated debug unit to work with new genpc/if.
//
// Revision 1.1 2002/01/03 08:16:15 lampret
// New prefixes for RTL files, prefixed module names. Updated cache controllers and MMUs.
//
// Revision 1.14 2001/11/30 18:59:17 simons
// force_dslot_fetch does not work - allways zero.
//
// Revision 1.13 2001/11/20 18:46:15 simons
// Break point bug fixed
//
// Revision 1.12 2001/11/18 08:36:28 lampret
// For GDB changed single stepping and disabled trap exception.
//
// Revision 1.11 2001/11/13 10:02:21 lampret
// Added 'setpc'. Renamed some signals (except_flushpipe into flushpipe etc)
//
// Revision 1.10 2001/11/12 01:45:40 lampret
// Moved flag bit into SR. Changed RF enable from constant enable to dynamic enable for read ports.
//
// Revision 1.9 2001/11/10 03:43:57 lampret
// Fixed exceptions.
//
// Revision 1.8 2001/10/21 17:57:16 lampret
// Removed params from generic_XX.v. Added translate_off/on in sprs.v and id.v. Removed spr_addr from dc.v and ic.v. Fixed CR+LF.
//
// Revision 1.7 2001/10/14 13:12:09 lampret
// MP3 version.
//
// Revision 1.1.1.1 2001/10/06 10:18:36 igorm
// no message
//
// Revision 1.2 2001/08/13 03:36:20 lampret
// Added cfg regs. Moved all defines into one defines.v file. More cleanup.
//
// Revision 1.1 2001/08/09 13:39:33 lampret
// Major clean-up.
//
//
 
// synopsys translate_off
`include "timescale.v"
// synopsys translate_on
`include "or1200_defines.v"
 
module or1200_ctrl(
// Clock and reset
clk, rst,
 
// Internal i/f
id_freeze, ex_freeze, wb_freeze, flushpipe, if_insn, ex_insn, branch_op, branch_taken,
rf_addra, rf_addrb, rf_rda, rf_rdb, alu_op, mac_op, shrot_op, comp_op, rf_addrw, rfwb_op,
wb_insn, simm, branch_addrofs, lsu_addrofs, sel_a, sel_b, lsu_op,
multicycle, spr_addrimm, wbforw_valid, du_hwbkpt, sig_syscall, sig_trap,
force_dslot_fetch, no_more_dslot, ex_void, id_macrc_op, ex_macrc_op, rfe, except_illegal
);
 
//
// I/O
//
input clk;
input rst;
input id_freeze;
input ex_freeze;
input wb_freeze;
input flushpipe;
input [31:0] if_insn;
output [31:0] ex_insn;
output [`OR1200_BRANCHOP_WIDTH-1:0] branch_op;
input branch_taken;
output [`OR1200_REGFILE_ADDR_WIDTH-1:0] rf_addrw;
output [`OR1200_REGFILE_ADDR_WIDTH-1:0] rf_addra;
output [`OR1200_REGFILE_ADDR_WIDTH-1:0] rf_addrb;
output rf_rda;
output rf_rdb;
output [`OR1200_ALUOP_WIDTH-1:0] alu_op;
output [`OR1200_MACOP_WIDTH-1:0] mac_op;
output [`OR1200_SHROTOP_WIDTH-1:0] shrot_op;
output [`OR1200_RFWBOP_WIDTH-1:0] rfwb_op;
output [31:0] wb_insn;
output [31:0] simm;
output [31:2] branch_addrofs;
output [31:0] lsu_addrofs;
output [`OR1200_SEL_WIDTH-1:0] sel_a;
output [`OR1200_SEL_WIDTH-1:0] sel_b;
output [`OR1200_LSUOP_WIDTH-1:0] lsu_op;
output [`OR1200_COMPOP_WIDTH-1:0] comp_op;
output [`OR1200_MULTICYCLE_WIDTH-1:0] multicycle;
output [15:0] spr_addrimm;
input wbforw_valid;
input du_hwbkpt;
output sig_syscall;
output sig_trap;
output force_dslot_fetch;
output no_more_dslot;
output ex_void;
output id_macrc_op;
output ex_macrc_op;
output rfe;
output except_illegal;
 
//
// Internal wires and regs
//
reg [`OR1200_BRANCHOP_WIDTH-1:0] pre_branch_op;
reg [`OR1200_BRANCHOP_WIDTH-1:0] branch_op;
reg [`OR1200_ALUOP_WIDTH-1:0] alu_op;
`ifdef OR1200_MAC_IMPLEMENTED
reg [`OR1200_MACOP_WIDTH-1:0] mac_op;
reg ex_macrc_op;
`else
wire [`OR1200_MACOP_WIDTH-1:0] mac_op;
wire ex_macrc_op;
`endif
reg [`OR1200_SHROTOP_WIDTH-1:0] shrot_op;
reg [31:0] id_insn;
reg [31:0] ex_insn;
reg [31:0] wb_insn;
reg [`OR1200_REGFILE_ADDR_WIDTH-1:0] rf_addrw;
reg [`OR1200_REGFILE_ADDR_WIDTH-1:0] wb_rfaddrw;
reg [`OR1200_RFWBOP_WIDTH-1:0] rfwb_op;
reg [31:0] lsu_addrofs;
reg [`OR1200_SEL_WIDTH-1:0] sel_a;
reg [`OR1200_SEL_WIDTH-1:0] sel_b;
reg sel_imm;
reg [`OR1200_LSUOP_WIDTH-1:0] lsu_op;
reg [`OR1200_COMPOP_WIDTH-1:0] comp_op;
reg [`OR1200_MULTICYCLE_WIDTH-1:0] multicycle;
reg imm_signextend;
reg [15:0] spr_addrimm;
reg sig_syscall;
reg sig_trap;
reg except_illegal;
wire id_void;
 
//
// Register file read addresses
//
assign rf_addra = if_insn[20:16];
assign rf_addrb = if_insn[15:11];
assign rf_rda = if_insn[31];
assign rf_rdb = if_insn[30];
 
//
// Force fetch of delay slot instruction when jump/branch is preceeded by load/store
// instructions
//
// SIMON
// assign force_dslot_fetch = ((|pre_branch_op) & (|lsu_op));
assign force_dslot_fetch = 1'b0;
assign no_more_dslot = |branch_op & !id_void & branch_taken | (branch_op == `OR1200_BRANCHOP_RFE);
assign id_void = (id_insn[31:26] == `OR1200_OR32_NOP) & id_insn[16];
assign ex_void = (ex_insn[31:26] == `OR1200_OR32_NOP) & ex_insn[16];
 
//
// Sign/Zero extension of immediates
//
assign simm = (imm_signextend == 1'b1) ? {{16{id_insn[15]}}, id_insn[15:0]} : {{16'b0}, id_insn[15:0]};
 
//
// Sign extension of branch offset
//
assign branch_addrofs = {{4{ex_insn[25]}}, ex_insn[25:0]};
 
//
// l.macrc in ID stage
//
`ifdef OR1200_MAC_IMPLEMENTED
assign id_macrc_op = (id_insn[31:26] == `OR1200_OR32_MOVHI) & id_insn[16];
`else
assign id_macrc_op = 1'b0;
`endif
 
//
//
//
assign rfe = (pre_branch_op == `OR1200_BRANCHOP_RFE) | (branch_op == `OR1200_BRANCHOP_RFE);
 
//
// Generation of sel_a
//
always @(rf_addrw or id_insn or rfwb_op or wbforw_valid or wb_rfaddrw)
if ((id_insn[20:16] == rf_addrw) && rfwb_op[0])
sel_a = `OR1200_SEL_EX_FORW;
else if ((id_insn[20:16] == wb_rfaddrw) && wbforw_valid)
sel_a = `OR1200_SEL_WB_FORW;
else
sel_a = `OR1200_SEL_RF;
 
//
// Generation of sel_b
//
always @(rf_addrw or sel_imm or id_insn or rfwb_op or wbforw_valid or wb_rfaddrw)
if (sel_imm)
sel_b = `OR1200_SEL_IMM;
else if ((id_insn[15:11] == rf_addrw) && rfwb_op[0])
sel_b = `OR1200_SEL_EX_FORW;
else if ((id_insn[15:11] == wb_rfaddrw) && wbforw_valid)
sel_b = `OR1200_SEL_WB_FORW;
else
sel_b = `OR1200_SEL_RF;
 
//
// l.macrc in EX stage
//
`ifdef OR1200_MAC_IMPLEMENTED
always @(posedge clk or posedge rst) begin
if (rst)
ex_macrc_op <= #1 1'b0;
else if (!ex_freeze & id_freeze | flushpipe)
ex_macrc_op <= #1 1'b0;
else if (!ex_freeze)
ex_macrc_op <= #1 id_macrc_op;
end
`else
assign ex_macrc_op = 1'b0;
`endif
 
//
// Decode of spr_addrimm
//
always @(posedge clk or posedge rst) begin
if (rst)
spr_addrimm <= #1 16'h0000;
else if (!ex_freeze & id_freeze | flushpipe)
spr_addrimm <= #1 16'h0000;
else if (!ex_freeze) begin
case (id_insn[31:26]) // synopsys parallel_case
// l.mfspr
`OR1200_OR32_MFSPR:
spr_addrimm <= #1 id_insn[15:0];
// l.mtspr
default:
spr_addrimm <= #1 {id_insn[25:21], id_insn[10:0]};
endcase
end
end
 
//
// Decode of multicycle
//
always @(id_insn) begin
case (id_insn[31:26]) // synopsys parallel_case
`ifdef UNUSED
// l.lwz
`OR1200_OR32_LWZ:
multicycle = `OR1200_TWO_CYCLES;
// l.lbz
`OR1200_OR32_LBZ:
multicycle = `OR1200_TWO_CYCLES;
// l.lbs
`OR1200_OR32_LBS:
multicycle = `OR1200_TWO_CYCLES;
// l.lhz
`OR1200_OR32_LHZ:
multicycle = `OR1200_TWO_CYCLES;
// l.lhs
`OR1200_OR32_LHS:
multicycle = `OR1200_TWO_CYCLES;
// l.sw
`OR1200_OR32_SW:
multicycle = `OR1200_TWO_CYCLES;
// l.sb
`OR1200_OR32_SB:
multicycle = `OR1200_TWO_CYCLES;
// l.sh
`OR1200_OR32_SH:
multicycle = `OR1200_TWO_CYCLES;
`endif
// ALU instructions except the one with immediate
`OR1200_OR32_ALU:
multicycle = id_insn[`OR1200_ALUMCYC_POS];
// Single cycle instructions
default: begin
multicycle = `OR1200_ONE_CYCLE;
end
endcase
end
 
//
// Decode of imm_signextend
//
always @(id_insn) begin
case (id_insn[31:26]) // synopsys parallel_case
 
// l.addi
`OR1200_OR32_ADDI:
imm_signextend = 1'b1;
 
// l.addic
`OR1200_OR32_ADDIC:
imm_signextend = 1'b1;
 
// l.xori
`OR1200_OR32_XORI:
imm_signextend = 1'b1;
 
// l.muli
`ifdef OR1200_MULT_IMPLEMENTED
`OR1200_OR32_MULI:
imm_signextend = 1'b1;
`endif
 
// l.maci
`ifdef OR1200_MAC_IMPLEMENTED
`OR1200_OR32_MACI:
imm_signextend = 1'b1;
`endif
 
// SFXX insns with immediate
`OR1200_OR32_SFXXI:
imm_signextend = 1'b1;
 
// Instructions with no or zero extended immediate
default: begin
imm_signextend = 1'b0;
end
 
endcase
 
end
 
//
// LSU addr offset
//
always @(lsu_op or ex_insn) begin
lsu_addrofs[10:0] = ex_insn[10:0];
case(lsu_op) // synopsys parallel_case
`OR1200_LSUOP_SW, `OR1200_LSUOP_SH, `OR1200_LSUOP_SB :
lsu_addrofs[31:11] = {{16{ex_insn[25]}}, ex_insn[25:21]};
default :
lsu_addrofs[31:11] = {{16{ex_insn[15]}}, ex_insn[15:11]};
endcase
end
 
//
// Register file write address
//
always @(posedge clk or posedge rst) begin
if (rst)
rf_addrw <= #1 5'd0;
else if (!ex_freeze & id_freeze)
rf_addrw <= #1 5'd00;
else if (!ex_freeze)
case (pre_branch_op) // synopsys parallel_case
`OR1200_BRANCHOP_JR, `OR1200_BRANCHOP_BAL:
rf_addrw <= #1 5'd09; // link register r9
default:
rf_addrw <= #1 id_insn[25:21];
endcase
end
 
//
// rf_addrw in wb stage (used in forwarding logic)
//
always @(posedge clk or posedge rst) begin
if (rst)
wb_rfaddrw <= #1 5'd0;
else if (!wb_freeze)
wb_rfaddrw <= #1 rf_addrw;
end
 
//
// Instruction latch in id_insn
//
always @(posedge clk or posedge rst) begin
if (rst)
id_insn <= #1 {`OR1200_OR32_NOP, 26'h041_0000};
else if (flushpipe)
id_insn <= #1 {`OR1200_OR32_NOP, 26'h041_0000}; // id_insn[16] must be 1
else if (!id_freeze) begin
id_insn <= #1 if_insn;
`ifdef OR1200_VERBOSE
// synopsys translate_off
$display("%t: id_insn <= %h", $time, if_insn);
// synopsys translate_on
`endif
end
end
 
//
// Instruction latch in ex_insn
//
always @(posedge clk or posedge rst) begin
if (rst)
ex_insn <= #1 {`OR1200_OR32_NOP, 26'h041_0000};
else if (!ex_freeze & id_freeze | flushpipe)
ex_insn <= #1 {`OR1200_OR32_NOP, 26'h041_0000}; // ex_insn[16] must be 1
else if (!ex_freeze) begin
ex_insn <= #1 id_insn;
`ifdef OR1200_VERBOSE
// synopsys translate_off
$display("%t: ex_insn <= %h", $time, id_insn);
// synopsys translate_on
`endif
end
end
 
//
// Instruction latch in wb_insn
//
always @(posedge clk or posedge rst) begin
if (rst)
wb_insn <= #1 {`OR1200_OR32_NOP, 26'h041_0000};
else if (flushpipe)
wb_insn <= #1 {`OR1200_OR32_NOP, 26'h041_0000}; // wb_insn[16] must be 1
else if (!wb_freeze) begin
wb_insn <= #1 ex_insn;
end
end
 
//
// Decode of sel_imm
//
always @(posedge clk or posedge rst) begin
if (rst)
sel_imm <= #1 1'b0;
else if (!id_freeze) begin
case (if_insn[31:26]) // synopsys parallel_case
 
// j.jalr
`OR1200_OR32_JALR:
sel_imm <= #1 1'b0;
// l.jr
`OR1200_OR32_JR:
sel_imm <= #1 1'b0;
// l.rfe
`OR1200_OR32_RFE:
sel_imm <= #1 1'b0;
// l.mfspr
`OR1200_OR32_MFSPR:
sel_imm <= #1 1'b0;
// l.mtspr
`OR1200_OR32_MTSPR:
sel_imm <= #1 1'b0;
// l.sys, l.brk and all three sync insns
`OR1200_OR32_XSYNC:
sel_imm <= #1 1'b0;
// l.mac/l.msb
`ifdef OR1200_MAC_IMPLEMENTED
`OR1200_OR32_MACMSB:
sel_imm <= #1 1'b0;
`endif
 
// l.sw
`OR1200_OR32_SW:
sel_imm <= #1 1'b0;
// l.sb
`OR1200_OR32_SB:
sel_imm <= #1 1'b0;
// l.sh
`OR1200_OR32_SH:
sel_imm <= #1 1'b0;
// ALU instructions except the one with immediate
`OR1200_OR32_ALU:
sel_imm <= #1 1'b0;
// SFXX instructions
`OR1200_OR32_SFXX:
sel_imm <= #1 1'b0;
// l.nop
`OR1200_OR32_NOP:
sel_imm <= #1 1'b0;
 
// All instructions with immediates
default: begin
sel_imm <= #1 1'b1;
end
endcase
end
end
 
//
// Decode of except_illegal
//
always @(posedge clk or posedge rst) begin
if (rst)
except_illegal <= #1 1'b0;
else if (!ex_freeze & id_freeze | flushpipe)
except_illegal <= #1 1'b0;
else if (!ex_freeze) begin
case (id_insn[31:26]) // synopsys parallel_case
 
`OR1200_OR32_J,
`OR1200_OR32_JAL,
`OR1200_OR32_JALR,
`OR1200_OR32_JR,
`OR1200_OR32_BNF,
`OR1200_OR32_BF,
`OR1200_OR32_RFE,
`OR1200_OR32_MOVHI,
`OR1200_OR32_MFSPR,
`OR1200_OR32_XSYNC,
`ifdef OR1200_MAC_IMPLEMENTED
`OR1200_OR32_MACI,
`endif
`OR1200_OR32_LWZ,
`OR1200_OR32_LBZ,
`OR1200_OR32_LBS,
`OR1200_OR32_LHZ,
`OR1200_OR32_LHS,
`OR1200_OR32_ADDI,
`OR1200_OR32_ADDIC,
`OR1200_OR32_ANDI,
`OR1200_OR32_ORI,
`OR1200_OR32_XORI,
`ifdef OR1200_MULT_IMPLEMENTED
`OR1200_OR32_MULI,
`endif
`OR1200_OR32_SH_ROTI,
`OR1200_OR32_SFXXI,
`OR1200_OR32_MTSPR,
`ifdef OR1200_MAC_IMPLEMENTED
`OR1200_OR32_MACMSB,
`endif
`OR1200_OR32_SW,
`OR1200_OR32_SB,
`OR1200_OR32_SH,
`OR1200_OR32_ALU,
`OR1200_OR32_SFXX,
`OR1200_OR32_NOP:
except_illegal <= #1 1'b0;
 
// Illegal and OR1200 unsupported instructions
default:
except_illegal <= #1 1'b1;
 
endcase
end
end
 
//
// Decode of alu_op
//
always @(posedge clk or posedge rst) begin
if (rst)
alu_op <= #1 `OR1200_ALUOP_NOP;
else if (!ex_freeze & id_freeze | flushpipe)
alu_op <= #1 `OR1200_ALUOP_NOP;
else if (!ex_freeze) begin
case (id_insn[31:26]) // synopsys parallel_case
// l.j
`OR1200_OR32_J:
alu_op <= #1 `OR1200_ALUOP_IMM;
// j.jal
`OR1200_OR32_JAL:
alu_op <= #1 `OR1200_ALUOP_IMM;
// l.bnf
`OR1200_OR32_BNF:
alu_op <= #1 `OR1200_ALUOP_NOP;
// l.bf
`OR1200_OR32_BF:
alu_op <= #1 `OR1200_ALUOP_NOP;
// l.movhi
`OR1200_OR32_MOVHI:
alu_op <= #1 `OR1200_ALUOP_MOVHI;
// l.mfspr
`OR1200_OR32_MFSPR:
alu_op <= #1 `OR1200_ALUOP_MFSR;
// l.mtspr
`OR1200_OR32_MTSPR:
alu_op <= #1 `OR1200_ALUOP_MTSR;
// l.addi
`OR1200_OR32_ADDI:
alu_op <= #1 `OR1200_ALUOP_ADD;
// l.addic
`OR1200_OR32_ADDIC:
alu_op <= #1 `OR1200_ALUOP_ADDC;
// l.andi
`OR1200_OR32_ANDI:
alu_op <= #1 `OR1200_ALUOP_AND;
// l.ori
`OR1200_OR32_ORI:
alu_op <= #1 `OR1200_ALUOP_OR;
// l.xori
`OR1200_OR32_XORI:
alu_op <= #1 `OR1200_ALUOP_XOR;
// l.muli
`ifdef OR1200_MULT_IMPLEMENTED
`OR1200_OR32_MULI:
alu_op <= #1 `OR1200_ALUOP_MUL;
`endif
// Shift and rotate insns with immediate
`OR1200_OR32_SH_ROTI:
alu_op <= #1 `OR1200_ALUOP_SHROT;
// SFXX insns with immediate
`OR1200_OR32_SFXXI:
alu_op <= #1 `OR1200_ALUOP_COMP;
// ALU instructions except the one with immediate
`OR1200_OR32_ALU:
alu_op <= #1 id_insn[3:0];
// SFXX instructions
`OR1200_OR32_SFXX:
alu_op <= #1 `OR1200_ALUOP_COMP;
// Default
default: begin
alu_op <= #1 `OR1200_ALUOP_NOP;
end
endcase
end
end
 
//
// Decode of mac_op
//
`ifdef OR1200_MAC_IMPLEMENTED
always @(posedge clk or posedge rst) begin
if (rst)
mac_op <= #1 `OR1200_MACOP_NOP;
else if (!ex_freeze & id_freeze | flushpipe)
mac_op <= #1 `OR1200_MACOP_NOP;
else if (!ex_freeze)
case (id_insn[31:26]) // synopsys parallel_case
 
// l.maci
`OR1200_OR32_MACI:
mac_op <= #1 `OR1200_MACOP_MAC;
 
// l.nop
`OR1200_OR32_MACMSB:
mac_op <= #1 id_insn[1:0];
 
// Illegal and OR1200 unsupported instructions
default: begin
mac_op <= #1 `OR1200_MACOP_NOP;
end
 
endcase
else
mac_op <= #1 `OR1200_MACOP_NOP;
end
`else
assign mac_op = `OR1200_MACOP_NOP;
`endif
 
//
// Decode of shrot_op
//
always @(posedge clk or posedge rst) begin
if (rst)
shrot_op <= #1 `OR1200_SHROTOP_NOP;
else if (!ex_freeze & id_freeze | flushpipe)
shrot_op <= #1 `OR1200_SHROTOP_NOP;
else if (!ex_freeze) begin
shrot_op <= #1 id_insn[`OR1200_SHROTOP_POS];
end
end
 
//
// Decode of rfwb_op
//
always @(posedge clk or posedge rst) begin
if (rst)
rfwb_op <= #1 `OR1200_RFWBOP_NOP;
else if (!ex_freeze & id_freeze | flushpipe)
rfwb_op <= #1 `OR1200_RFWBOP_NOP;
else if (!ex_freeze) begin
case (id_insn[31:26]) // synopsys parallel_case
 
// j.jal
`OR1200_OR32_JAL:
rfwb_op <= #1 `OR1200_RFWBOP_LR;
// j.jalr
`OR1200_OR32_JALR:
rfwb_op <= #1 `OR1200_RFWBOP_LR;
// l.movhi
`OR1200_OR32_MOVHI:
rfwb_op <= #1 `OR1200_RFWBOP_ALU;
// l.mfspr
`OR1200_OR32_MFSPR:
rfwb_op <= #1 `OR1200_RFWBOP_SPRS;
// l.lwz
`OR1200_OR32_LWZ:
rfwb_op <= #1 `OR1200_RFWBOP_LSU;
// l.lbz
`OR1200_OR32_LBZ:
rfwb_op <= #1 `OR1200_RFWBOP_LSU;
// l.lbs
`OR1200_OR32_LBS:
rfwb_op <= #1 `OR1200_RFWBOP_LSU;
// l.lhz
`OR1200_OR32_LHZ:
rfwb_op <= #1 `OR1200_RFWBOP_LSU;
// l.lhs
`OR1200_OR32_LHS:
rfwb_op <= #1 `OR1200_RFWBOP_LSU;
// l.addi
`OR1200_OR32_ADDI:
rfwb_op <= #1 `OR1200_RFWBOP_ALU;
// l.addic
`OR1200_OR32_ADDIC:
rfwb_op <= #1 `OR1200_RFWBOP_ALU;
// l.andi
`OR1200_OR32_ANDI:
rfwb_op <= #1 `OR1200_RFWBOP_ALU;
// l.ori
`OR1200_OR32_ORI:
rfwb_op <= #1 `OR1200_RFWBOP_ALU;
// l.xori
`OR1200_OR32_XORI:
rfwb_op <= #1 `OR1200_RFWBOP_ALU;
// l.muli
`ifdef OR1200_MULT_IMPLEMENTED
`OR1200_OR32_MULI:
rfwb_op <= #1 `OR1200_RFWBOP_ALU;
`endif
// Shift and rotate insns with immediate
`OR1200_OR32_SH_ROTI:
rfwb_op <= #1 `OR1200_RFWBOP_ALU;
// ALU instructions except the one with immediate
`OR1200_OR32_ALU:
rfwb_op <= #1 `OR1200_RFWBOP_ALU;
// Instructions w/o register-file write-back
default: begin
rfwb_op <= #1 `OR1200_RFWBOP_NOP;
end
 
endcase
end
end
 
//
// Decode of pre_branch_op
//
always @(posedge clk or posedge rst) begin
if (rst)
pre_branch_op <= #1 `OR1200_BRANCHOP_NOP;
else if (flushpipe)
pre_branch_op <= #1 `OR1200_BRANCHOP_NOP;
else if (!id_freeze) begin
case (if_insn[31:26]) // synopsys parallel_case
// l.j
`OR1200_OR32_J:
pre_branch_op <= #1 `OR1200_BRANCHOP_BAL;
// j.jal
`OR1200_OR32_JAL:
pre_branch_op <= #1 `OR1200_BRANCHOP_BAL;
// j.jalr
`OR1200_OR32_JALR:
pre_branch_op <= #1 `OR1200_BRANCHOP_JR;
// l.jr
`OR1200_OR32_JR:
pre_branch_op <= #1 `OR1200_BRANCHOP_JR;
// l.bnf
`OR1200_OR32_BNF:
pre_branch_op <= #1 `OR1200_BRANCHOP_BNF;
// l.bf
`OR1200_OR32_BF:
pre_branch_op <= #1 `OR1200_BRANCHOP_BF;
// l.rfe
`OR1200_OR32_RFE:
pre_branch_op <= #1 `OR1200_BRANCHOP_RFE;
// Non branch instructions
default: begin
pre_branch_op <= #1 `OR1200_BRANCHOP_NOP;
end
endcase
end
end
 
//
// Generation of branch_op
//
always @(posedge clk or posedge rst)
if (rst)
branch_op <= #1 `OR1200_BRANCHOP_NOP;
else if (!ex_freeze & id_freeze | flushpipe)
branch_op <= #1 `OR1200_BRANCHOP_NOP;
else if (!ex_freeze)
branch_op <= #1 pre_branch_op;
 
//
// Decode of lsu_op
//
always @(posedge clk or posedge rst) begin
if (rst)
lsu_op <= #1 `OR1200_LSUOP_NOP;
else if (!ex_freeze & id_freeze | flushpipe)
lsu_op <= #1 `OR1200_LSUOP_NOP;
else if (!ex_freeze) begin
case (id_insn[31:26]) // synopsys parallel_case
// l.lwz
`OR1200_OR32_LWZ:
lsu_op <= #1 `OR1200_LSUOP_LWZ;
// l.lbz
`OR1200_OR32_LBZ:
lsu_op <= #1 `OR1200_LSUOP_LBZ;
// l.lbs
`OR1200_OR32_LBS:
lsu_op <= #1 `OR1200_LSUOP_LBS;
// l.lhz
`OR1200_OR32_LHZ:
lsu_op <= #1 `OR1200_LSUOP_LHZ;
// l.lhs
`OR1200_OR32_LHS:
lsu_op <= #1 `OR1200_LSUOP_LHS;
// l.sw
`OR1200_OR32_SW:
lsu_op <= #1 `OR1200_LSUOP_SW;
// l.sb
`OR1200_OR32_SB:
lsu_op <= #1 `OR1200_LSUOP_SB;
// l.sh
`OR1200_OR32_SH:
lsu_op <= #1 `OR1200_LSUOP_SH;
// Non load/store instructions
default: begin
lsu_op <= #1 `OR1200_LSUOP_NOP;
end
endcase
end
end
 
//
// Decode of comp_op
//
always @(posedge clk or posedge rst) begin
if (rst) begin
comp_op <= #1 4'd0;
end else if (!ex_freeze & id_freeze | flushpipe)
comp_op <= #1 4'd0;
else if (!ex_freeze)
comp_op <= #1 id_insn[24:21];
end
 
//
// Decode of l.sys
//
always @(posedge clk or posedge rst) begin
if (rst)
sig_syscall <= #1 1'b0;
else if (!ex_freeze & id_freeze | flushpipe)
sig_syscall <= #1 1'b0;
else if (!ex_freeze) begin
`ifdef OR1200_VERBOSE
// synopsys translate_off
if (id_insn[31:23] == {`OR1200_OR32_XSYNC, 3'b000})
$display("Generating sig_syscall");
// synopsys translate_on
`endif
sig_syscall <= #1 (id_insn[31:23] == {`OR1200_OR32_XSYNC, 3'b000});
end
end
 
//
// Decode of l.trap
//
always @(posedge clk or posedge rst) begin
if (rst)
sig_trap <= #1 1'b0;
else if (!ex_freeze & id_freeze | flushpipe)
sig_trap <= #1 1'b0;
else if (!ex_freeze) begin
`ifdef OR1200_VERBOSE
// synopsys translate_off
if (id_insn[31:23] == {`OR1200_OR32_XSYNC, 3'b010})
$display("Generating sig_trap");
// synopsys translate_on
`endif
sig_trap <= #1 (id_insn[31:23] == {`OR1200_OR32_XSYNC, 3'b010})
| du_hwbkpt;
end
end
 
endmodule
/tags/rel_26/or1200/rtl/verilog/or1200_qmem_top.v
0,0 → 1,464
//////////////////////////////////////////////////////////////////////
//// ////
//// OR1200's Embedded Memory ////
//// ////
//// This file is part of the OpenRISC 1200 project ////
//// http://www.opencores.org/cores/or1k/ ////
//// ////
//// Description ////
//// Embedded Memory . ////
//// ////
//// To Do: ////
//// - QMEM and IC/DC muxes can be removed except for cycstb ////
//// (now are is there for easier debugging) ////
//// - currently arbitration is slow and stores take 2 clocks ////
//// (final debugged version will be faster) ////
//// ////
//// Author(s): ////
//// - Damjan Lampret, lampret@opencores.org ////
//// ////
//////////////////////////////////////////////////////////////////////
//// ////
//// Copyright (C) 2003 Authors and OPENCORES.ORG ////
//// ////
//// This source file may be used and distributed without ////
//// restriction provided that this copyright statement is not ////
//// removed from the file and that any derivative work contains ////
//// the original copyright notice and the associated disclaimer. ////
//// ////
//// This source file is free software; you can redistribute it ////
//// and/or modify it under the terms of the GNU Lesser General ////
//// Public License as published by the Free Software Foundation; ////
//// either version 2.1 of the License, or (at your option) any ////
//// later version. ////
//// ////
//// This source is distributed in the hope that it will be ////
//// useful, but WITHOUT ANY WARRANTY; without even the implied ////
//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR ////
//// PURPOSE. See the GNU Lesser General Public License for more ////
//// details. ////
//// ////
//// You should have received a copy of the GNU Lesser General ////
//// Public License along with this source; if not, download it ////
//// from http://www.opencores.org/lgpl.shtml ////
//// ////
//////////////////////////////////////////////////////////////////////
//
// CVS Revision History
//
// $Log: not supported by cvs2svn $
// Revision 1.1.2.3 2003/12/17 13:36:58 simons
// Qmem mbist signals fixed.
//
// Revision 1.1.2.2 2003/12/09 11:46:48 simons
// Mbist nameing changed, Artisan ram instance signal names fixed, some synthesis waning fixed.
//
// Revision 1.1.2.1 2003/07/08 15:45:26 lampret
// Added embedded memory QMEM.
//
//
 
// synopsys translate_off
`include "timescale.v"
// synopsys translate_on
`include "or1200_defines.v"
 
`define OR1200_QMEMFSM_IDLE 3'd0
`define OR1200_QMEMFSM_STORE 3'd1
`define OR1200_QMEMFSM_LOAD 3'd2
`define OR1200_QMEMFSM_FETCH 3'd3
 
//
// Embedded memory
//
module or1200_qmem_top(
// Rst, clk and clock control
clk, rst,
 
`ifdef OR1200_BIST
// RAM BIST
mbist_si_i, mbist_so_o, mbist_ctrl_i,
`endif
 
// QMEM and CPU/IMMU
qmemimmu_adr_i,
qmemimmu_cycstb_i,
qmemimmu_ci_i,
qmemicpu_sel_i,
qmemicpu_tag_i,
qmemicpu_dat_o,
qmemicpu_ack_o,
qmemimmu_rty_o,
qmemimmu_err_o,
qmemimmu_tag_o,
 
// QMEM and IC
icqmem_adr_o,
icqmem_cycstb_o,
icqmem_ci_o,
icqmem_sel_o,
icqmem_tag_o,
icqmem_dat_i,
icqmem_ack_i,
icqmem_rty_i,
icqmem_err_i,
icqmem_tag_i,
 
// QMEM and CPU/DMMU
qmemdmmu_adr_i,
qmemdmmu_cycstb_i,
qmemdmmu_ci_i,
qmemdcpu_we_i,
qmemdcpu_sel_i,
qmemdcpu_tag_i,
qmemdcpu_dat_i,
qmemdcpu_dat_o,
qmemdcpu_ack_o,
qmemdcpu_rty_o,
qmemdmmu_err_o,
qmemdmmu_tag_o,
 
// QMEM and DC
dcqmem_adr_o, dcqmem_cycstb_o, dcqmem_ci_o,
dcqmem_we_o, dcqmem_sel_o, dcqmem_tag_o, dcqmem_dat_o,
dcqmem_dat_i, dcqmem_ack_i, dcqmem_rty_i, dcqmem_err_i, dcqmem_tag_i
 
);
 
parameter dw = `OR1200_OPERAND_WIDTH;
 
//
// I/O
//
 
//
// Clock and reset
//
input clk;
input rst;
 
`ifdef OR1200_BIST
//
// RAM BIST
//
input mbist_si_i;
input [`OR1200_MBIST_CTRL_WIDTH - 1:0] mbist_ctrl_i;
output mbist_so_o;
`endif
 
//
// QMEM and CPU/IMMU
//
input [31:0] qmemimmu_adr_i;
input qmemimmu_cycstb_i;
input qmemimmu_ci_i;
input [3:0] qmemicpu_sel_i;
input [3:0] qmemicpu_tag_i;
output [31:0] qmemicpu_dat_o;
output qmemicpu_ack_o;
output qmemimmu_rty_o;
output qmemimmu_err_o;
output [3:0] qmemimmu_tag_o;
 
//
// QMEM and IC
//
output [31:0] icqmem_adr_o;
output icqmem_cycstb_o;
output icqmem_ci_o;
output [3:0] icqmem_sel_o;
output [3:0] icqmem_tag_o;
input [31:0] icqmem_dat_i;
input icqmem_ack_i;
input icqmem_rty_i;
input icqmem_err_i;
input [3:0] icqmem_tag_i;
 
//
// QMEM and CPU/DMMU
//
input [31:0] qmemdmmu_adr_i;
input qmemdmmu_cycstb_i;
input qmemdmmu_ci_i;
input qmemdcpu_we_i;
input [3:0] qmemdcpu_sel_i;
input [3:0] qmemdcpu_tag_i;
input [31:0] qmemdcpu_dat_i;
output [31:0] qmemdcpu_dat_o;
output qmemdcpu_ack_o;
output qmemdcpu_rty_o;
output qmemdmmu_err_o;
output [3:0] qmemdmmu_tag_o;
 
//
// QMEM and DC
//
output [31:0] dcqmem_adr_o;
output dcqmem_cycstb_o;
output dcqmem_ci_o;
output dcqmem_we_o;
output [3:0] dcqmem_sel_o;
output [3:0] dcqmem_tag_o;
output [dw-1:0] dcqmem_dat_o;
input [dw-1:0] dcqmem_dat_i;
input dcqmem_ack_i;
input dcqmem_rty_i;
input dcqmem_err_i;
input [3:0] dcqmem_tag_i;
 
`ifdef OR1200_QMEM_IMPLEMENTED
 
//
// Internal regs and wires
//
wire iaddr_qmem_hit;
wire daddr_qmem_hit;
reg [2:0] state;
reg qmem_dack;
reg qmem_iack;
wire [31:0] qmem_di;
wire [31:0] qmem_do;
wire qmem_en;
wire qmem_we;
`ifdef OR1200_QMEM_BSEL
wire [3:0] qmem_sel;
`endif
wire [31:0] qmem_addr;
`ifdef OR1200_QMEM_ACK
wire qmem_ack;
`else
wire qmem_ack = 1'b1;
`endif
 
//
// QMEM and CPU/IMMU
//
assign qmemicpu_dat_o = qmem_iack ? qmem_do : icqmem_dat_i;
assign qmemicpu_ack_o = qmem_iack ? 1'b1 : icqmem_ack_i;
assign qmemimmu_rty_o = qmem_iack ? 1'b0 : icqmem_rty_i;
assign qmemimmu_err_o = qmem_iack ? 1'b0 : icqmem_err_i;
assign qmemimmu_tag_o = qmem_iack ? 4'h0 : icqmem_tag_i;
 
//
// QMEM and IC
//
assign icqmem_adr_o = iaddr_qmem_hit ? 32'h0000_0000 : qmemimmu_adr_i;
assign icqmem_cycstb_o = iaddr_qmem_hit ? 1'b0 : qmemimmu_cycstb_i;
assign icqmem_ci_o = iaddr_qmem_hit ? 1'b0 : qmemimmu_ci_i;
assign icqmem_sel_o = iaddr_qmem_hit ? 4'h0 : qmemicpu_sel_i;
assign icqmem_tag_o = iaddr_qmem_hit ? 4'h0 : qmemicpu_tag_i;
 
//
// QMEM and CPU/DMMU
//
assign qmemdcpu_dat_o = daddr_qmem_hit ? qmem_do : dcqmem_dat_i;
assign qmemdcpu_ack_o = daddr_qmem_hit ? qmem_dack : dcqmem_ack_i;
assign qmemdcpu_rty_o = daddr_qmem_hit ? ~qmem_dack : dcqmem_rty_i;
assign qmemdmmu_err_o = daddr_qmem_hit ? 1'b0 : dcqmem_err_i;
assign qmemdmmu_tag_o = daddr_qmem_hit ? 4'h0 : dcqmem_tag_i;
 
//
// QMEM and DC
//
assign dcqmem_adr_o = daddr_qmem_hit ? 32'h0000_0000 : qmemdmmu_adr_i;
assign dcqmem_cycstb_o = daddr_qmem_hit ? 1'b0 : qmemdmmu_cycstb_i;
assign dcqmem_ci_o = daddr_qmem_hit ? 1'b0 : qmemdmmu_ci_i;
assign dcqmem_we_o = daddr_qmem_hit ? 1'b0 : qmemdcpu_we_i;
assign dcqmem_sel_o = daddr_qmem_hit ? 4'h0 : qmemdcpu_sel_i;
assign dcqmem_tag_o = daddr_qmem_hit ? 4'h0 : qmemdcpu_tag_i;
assign dcqmem_dat_o = daddr_qmem_hit ? 32'h0000_0000 : qmemdcpu_dat_i;
 
//
// Address comparison whether QMEM was hit
//
`ifdef OR1200_QMEM_IADDR
assign iaddr_qmem_hit = (qmemimmu_adr_i & `OR1200_QMEM_IMASK) == `OR1200_QMEM_IADDR;
`else
assign iaddr_qmem_hit = 1'b0;
`endif
 
`ifdef OR1200_QMEM_DADDR
assign daddr_qmem_hit = (qmemdmmu_adr_i & `OR1200_QMEM_DMASK) == `OR1200_QMEM_DADDR;
`else
assign daddr_qmem_hit = 1'b0;
`endif
 
//
//
//
assign qmem_en = iaddr_qmem_hit & qmemimmu_cycstb_i | daddr_qmem_hit & qmemdmmu_cycstb_i;
assign qmem_we = qmemdmmu_cycstb_i & daddr_qmem_hit & qmemdcpu_we_i;
`ifdef OR1200_QMEM_BSEL
assign qmem_sel = (qmemdmmu_cycstb_i & daddr_qmem_hit) ? qmemdcpu_sel_i : qmemicpu_sel_i;
`endif
assign qmem_di = qmemdcpu_dat_i;
assign qmem_addr = (qmemdmmu_cycstb_i & daddr_qmem_hit) ? qmemdmmu_adr_i : qmemimmu_adr_i;
 
//
// QMEM control FSM
//
always @(posedge rst or posedge clk)
if (rst) begin
state <= #1 `OR1200_QMEMFSM_IDLE;
qmem_dack <= #1 1'b0;
qmem_iack <= #1 1'b0;
end
else case (state) // synopsys parallel_case
`OR1200_QMEMFSM_IDLE: begin
if (qmemdmmu_cycstb_i & daddr_qmem_hit & qmemdcpu_we_i & qmem_ack) begin
state <= #1 `OR1200_QMEMFSM_STORE;
qmem_dack <= #1 1'b1;
qmem_iack <= #1 1'b0;
end
else if (qmemdmmu_cycstb_i & daddr_qmem_hit & qmem_ack) begin
state <= #1 `OR1200_QMEMFSM_LOAD;
qmem_dack <= #1 1'b1;
qmem_iack <= #1 1'b0;
end
else if (qmemimmu_cycstb_i & iaddr_qmem_hit & qmem_ack) begin
state <= #1 `OR1200_QMEMFSM_FETCH;
qmem_iack <= #1 1'b1;
qmem_dack <= #1 1'b0;
end
end
`OR1200_QMEMFSM_STORE: begin
if (qmemdmmu_cycstb_i & daddr_qmem_hit & qmemdcpu_we_i & qmem_ack) begin
state <= #1 `OR1200_QMEMFSM_STORE;
qmem_dack <= #1 1'b1;
qmem_iack <= #1 1'b0;
end
else if (qmemdmmu_cycstb_i & daddr_qmem_hit & qmem_ack) begin
state <= #1 `OR1200_QMEMFSM_LOAD;
qmem_dack <= #1 1'b1;
qmem_iack <= #1 1'b0;
end
else if (qmemimmu_cycstb_i & iaddr_qmem_hit & qmem_ack) begin
state <= #1 `OR1200_QMEMFSM_FETCH;
qmem_iack <= #1 1'b1;
qmem_dack <= #1 1'b0;
end
else begin
state <= #1 `OR1200_QMEMFSM_IDLE;
qmem_dack <= #1 1'b0;
qmem_iack <= #1 1'b0;
end
end
`OR1200_QMEMFSM_LOAD: begin
if (qmemdmmu_cycstb_i & daddr_qmem_hit & qmemdcpu_we_i & qmem_ack) begin
state <= #1 `OR1200_QMEMFSM_STORE;
qmem_dack <= #1 1'b1;
qmem_iack <= #1 1'b0;
end
else if (qmemdmmu_cycstb_i & daddr_qmem_hit & qmem_ack) begin
state <= #1 `OR1200_QMEMFSM_LOAD;
qmem_dack <= #1 1'b1;
qmem_iack <= #1 1'b0;
end
else if (qmemimmu_cycstb_i & iaddr_qmem_hit & qmem_ack) begin
state <= #1 `OR1200_QMEMFSM_FETCH;
qmem_iack <= #1 1'b1;
qmem_dack <= #1 1'b0;
end
else begin
state <= #1 `OR1200_QMEMFSM_IDLE;
qmem_dack <= #1 1'b0;
qmem_iack <= #1 1'b0;
end
end
`OR1200_QMEMFSM_FETCH: begin
if (qmemdmmu_cycstb_i & daddr_qmem_hit & qmemdcpu_we_i & qmem_ack) begin
state <= #1 `OR1200_QMEMFSM_STORE;
qmem_dack <= #1 1'b1;
qmem_iack <= #1 1'b0;
end
else if (qmemdmmu_cycstb_i & daddr_qmem_hit & qmem_ack) begin
state <= #1 `OR1200_QMEMFSM_LOAD;
qmem_dack <= #1 1'b1;
qmem_iack <= #1 1'b0;
end
else if (qmemimmu_cycstb_i & iaddr_qmem_hit & qmem_ack) begin
state <= #1 `OR1200_QMEMFSM_FETCH;
qmem_iack <= #1 1'b1;
qmem_dack <= #1 1'b0;
end
else begin
state <= #1 `OR1200_QMEMFSM_IDLE;
qmem_dack <= #1 1'b0;
qmem_iack <= #1 1'b0;
end
end
endcase
 
//
// Instantiation of embedded memory
//
or1200_spram_2048x32 or1200_qmem_ram(
.clk(clk),
.rst(rst),
`ifdef OR1200_BIST
// RAM BIST
.mbist_si_i(mbist_si_i),
.mbist_so_o(mbist_so_o),
.mbist_ctrl_i(mbist_ctrl_i),
`endif
.addr(qmem_addr[12:2]),
`ifdef OR1200_QMEM_BSEL
.sel(qmem_sel),
`endif
`ifdef OR1200_QMEM_ACK
.ack(qmem_ack),
`endif
.ce(qmem_en),
.we(qmem_we),
.oe(1'b1),
.di(qmem_di),
.do(qmem_do)
);
 
`else // OR1200_QMEM_IMPLEMENTED
 
//
// QMEM and CPU/IMMU
//
assign qmemicpu_dat_o = icqmem_dat_i;
assign qmemicpu_ack_o = icqmem_ack_i;
assign qmemimmu_rty_o = icqmem_rty_i;
assign qmemimmu_err_o = icqmem_err_i;
assign qmemimmu_tag_o = icqmem_tag_i;
 
//
// QMEM and IC
//
assign icqmem_adr_o = qmemimmu_adr_i;
assign icqmem_cycstb_o = qmemimmu_cycstb_i;
assign icqmem_ci_o = qmemimmu_ci_i;
assign icqmem_sel_o = qmemicpu_sel_i;
assign icqmem_tag_o = qmemicpu_tag_i;
 
//
// QMEM and CPU/DMMU
//
assign qmemdcpu_dat_o = dcqmem_dat_i;
assign qmemdcpu_ack_o = dcqmem_ack_i;
assign qmemdcpu_rty_o = dcqmem_rty_i;
assign qmemdmmu_err_o = dcqmem_err_i;
assign qmemdmmu_tag_o = dcqmem_tag_i;
 
//
// QMEM and DC
//
assign dcqmem_adr_o = qmemdmmu_adr_i;
assign dcqmem_cycstb_o = qmemdmmu_cycstb_i;
assign dcqmem_ci_o = qmemdmmu_ci_i;
assign dcqmem_we_o = qmemdcpu_we_i;
assign dcqmem_sel_o = qmemdcpu_sel_i;
assign dcqmem_tag_o = qmemdcpu_tag_i;
assign dcqmem_dat_o = qmemdcpu_dat_i;
 
`ifdef OR1200_BIST
assign mbist_so_o = mbist_si_i;
`endif
 
`endif
 
endmodule
/tags/rel_26/or1200/rtl/verilog/or1200_sprs.v
0,0 → 1,418
//////////////////////////////////////////////////////////////////////
//// ////
//// OR1200's interface to SPRs ////
//// ////
//// This file is part of the OpenRISC 1200 project ////
//// http://www.opencores.org/cores/or1k/ ////
//// ////
//// Description ////
//// Decoding of SPR addresses and access to SPRs ////
//// ////
//// To Do: ////
//// - make it smaller and faster ////
//// ////
//// Author(s): ////
//// - Damjan Lampret, lampret@opencores.org ////
//// ////
//////////////////////////////////////////////////////////////////////
//// ////
//// Copyright (C) 2000 Authors and OPENCORES.ORG ////
//// ////
//// This source file may be used and distributed without ////
//// restriction provided that this copyright statement is not ////
//// removed from the file and that any derivative work contains ////
//// the original copyright notice and the associated disclaimer. ////
//// ////
//// This source file is free software; you can redistribute it ////
//// and/or modify it under the terms of the GNU Lesser General ////
//// Public License as published by the Free Software Foundation; ////
//// either version 2.1 of the License, or (at your option) any ////
//// later version. ////
//// ////
//// This source is distributed in the hope that it will be ////
//// useful, but WITHOUT ANY WARRANTY; without even the implied ////
//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR ////
//// PURPOSE. See the GNU Lesser General Public License for more ////
//// details. ////
//// ////
//// You should have received a copy of the GNU Lesser General ////
//// Public License along with this source; if not, download it ////
//// from http://www.opencores.org/lgpl.shtml ////
//// ////
//////////////////////////////////////////////////////////////////////
//
// CVS Revision History
//
// $Log: not supported by cvs2svn $
// Revision 1.9 2002/09/07 05:42:02 lampret
// Added optional SR[CY]. Added define to enable additional (compare) flag modifiers. Defines are OR1200_IMPL_ADDC and OR1200_ADDITIONAL_FLAG_MODIFIERS.
//
// Revision 1.8 2002/08/28 01:44:25 lampret
// Removed some commented RTL. Fixed SR/ESR flag bug.
//
// Revision 1.7 2002/03/29 15:16:56 lampret
// Some of the warnings fixed.
//
// Revision 1.6 2002/03/11 01:26:57 lampret
// Changed generation of SPR address. Now it is ORed from base and offset instead of a sum.
//
// Revision 1.5 2002/02/01 19:56:54 lampret
// Fixed combinational loops.
//
// Revision 1.4 2002/01/23 07:52:36 lampret
// Changed default reset values for SR and ESR to match or1ksim's. Fixed flop model in or1200_dpram_32x32 when OR1200_XILINX_RAM32X1D is defined.
//
// Revision 1.3 2002/01/19 09:27:49 lampret
// SR[TEE] should be zero after reset.
//
// Revision 1.2 2002/01/18 07:56:00 lampret
// No more low/high priority interrupts (PICPR removed). Added tick timer exception. Added exception prefix (SR[EPH]). Fixed single-step bug whenreading NPC.
//
// Revision 1.1 2002/01/03 08:16:15 lampret
// New prefixes for RTL files, prefixed module names. Updated cache controllers and MMUs.
//
// Revision 1.12 2001/11/23 21:42:31 simons
// Program counter divided to PPC and NPC.
//
// Revision 1.11 2001/11/23 08:38:51 lampret
// Changed DSR/DRR behavior and exception detection.
//
// Revision 1.10 2001/11/12 01:45:41 lampret
// Moved flag bit into SR. Changed RF enable from constant enable to dynamic enable for read ports.
//
// Revision 1.9 2001/10/21 17:57:16 lampret
// Removed params from generic_XX.v. Added translate_off/on in sprs.v and id.v. Removed spr_addr from dc.v and ic.v. Fixed CR+LF.
//
// Revision 1.8 2001/10/14 13:12:10 lampret
// MP3 version.
//
// Revision 1.1.1.1 2001/10/06 10:18:36 igorm
// no message
//
// Revision 1.3 2001/08/13 03:36:20 lampret
// Added cfg regs. Moved all defines into one defines.v file. More cleanup.
//
// Revision 1.2 2001/08/09 13:39:33 lampret
// Major clean-up.
//
// Revision 1.1 2001/07/20 00:46:21 lampret
// Development version of RTL. Libraries are missing.
//
//
 
// synopsys translate_off
`include "timescale.v"
// synopsys translate_on
`include "or1200_defines.v"
 
module or1200_sprs(
// Clk & Rst
clk, rst,
 
// Internal CPU interface
flagforw, flag_we, flag, cyforw, cy_we, carry,
addrbase, addrofs, dat_i, alu_op, branch_op,
epcr, eear, esr, except_started,
to_wbmux, epcr_we, eear_we, esr_we, pc_we, sr_we, to_sr, sr,
spr_dat_cfgr, spr_dat_rf, spr_dat_npc, spr_dat_ppc, spr_dat_mac,
 
// From/to other RISC units
spr_dat_pic, spr_dat_tt, spr_dat_pm,
spr_dat_dmmu, spr_dat_immu, spr_dat_du,
spr_addr, spr_dat_o, spr_cs, spr_we,
 
du_addr, du_dat_du, du_read,
du_write, du_dat_cpu
 
);
 
parameter width = `OR1200_OPERAND_WIDTH;
 
//
// I/O Ports
//
 
//
// Internal CPU interface
//
input clk; // Clock
input rst; // Reset
input flagforw; // From ALU
input flag_we; // From ALU
output flag; // SR[F]
input cyforw; // From ALU
input cy_we; // From ALU
output carry; // SR[CY]
input [width-1:0] addrbase; // SPR base address
input [15:0] addrofs; // SPR offset
input [width-1:0] dat_i; // SPR write data
input [`OR1200_ALUOP_WIDTH-1:0] alu_op; // ALU operation
input [`OR1200_BRANCHOP_WIDTH-1:0] branch_op; // Branch operation
input [width-1:0] epcr; // EPCR0
input [width-1:0] eear; // EEAR0
input [`OR1200_SR_WIDTH-1:0] esr; // ESR0
input except_started; // Exception was started
output [width-1:0] to_wbmux; // For l.mfspr
output epcr_we; // EPCR0 write enable
output eear_we; // EEAR0 write enable
output esr_we; // ESR0 write enable
output pc_we; // PC write enable
output sr_we; // Write enable SR
output [`OR1200_SR_WIDTH-1:0] to_sr; // Data to SR
output [`OR1200_SR_WIDTH-1:0] sr; // SR
input [31:0] spr_dat_cfgr; // Data from CFGR
input [31:0] spr_dat_rf; // Data from RF
input [31:0] spr_dat_npc; // Data from NPC
input [31:0] spr_dat_ppc; // Data from PPC
input [31:0] spr_dat_mac; // Data from MAC
 
//
// To/from other RISC units
//
input [31:0] spr_dat_pic; // Data from PIC
input [31:0] spr_dat_tt; // Data from TT
input [31:0] spr_dat_pm; // Data from PM
input [31:0] spr_dat_dmmu; // Data from DMMU
input [31:0] spr_dat_immu; // Data from IMMU
input [31:0] spr_dat_du; // Data from DU
output [31:0] spr_addr; // SPR Address
output [31:0] spr_dat_o; // Data to unit
output [31:0] spr_cs; // Unit select
output spr_we; // SPR write enable
 
//
// To/from Debug Unit
//
input [width-1:0] du_addr; // Address
input [width-1:0] du_dat_du; // Data from DU to SPRS
input du_read; // Read qualifier
input du_write; // Write qualifier
output [width-1:0] du_dat_cpu; // Data from SPRS to DU
 
//
// Internal regs & wires
//
reg [`OR1200_SR_WIDTH-1:0] sr; // SR
reg write_spr; // Write SPR
reg read_spr; // Read SPR
reg [width-1:0] to_wbmux; // For l.mfspr
wire cfgr_sel; // Select for cfg regs
wire rf_sel; // Select for RF
wire npc_sel; // Select for NPC
wire ppc_sel; // Select for PPC
wire sr_sel; // Select for SR
wire epcr_sel; // Select for EPCR0
wire eear_sel; // Select for EEAR0
wire esr_sel; // Select for ESR0
wire [31:0] sys_data; // Read data from system SPRs
wire du_access; // Debug unit access
wire [`OR1200_ALUOP_WIDTH-1:0] sprs_op; // ALU operation
reg [31:0] unqualified_cs; // Unqualified chip selects
 
//
// Decide if it is debug unit access
//
assign du_access = du_read | du_write;
 
//
// Generate sprs opcode
//
assign sprs_op = du_write ? `OR1200_ALUOP_MTSR : du_read ? `OR1200_ALUOP_MFSR : alu_op;
 
//
// Generate SPR address from base address and offset
// OR from debug unit address
//
assign spr_addr = du_access ? du_addr : addrbase | {16'h0000, addrofs};
 
//
// SPR is written by debug unit or by l.mtspr
//
assign spr_dat_o = du_write ? du_dat_du : dat_i;
 
//
// debug unit data input:
// - write into debug unit SPRs by debug unit itself
// - read of SPRS by debug unit
// - write into debug unit SPRs by l.mtspr
//
assign du_dat_cpu = du_write ? du_dat_du : du_read ? to_wbmux : dat_i;
 
//
// Write into SPRs when l.mtspr
//
assign spr_we = du_write | write_spr;
 
//
// Qualify chip selects
//
assign spr_cs = unqualified_cs & {32{read_spr | write_spr}};
 
//
// Decoding of groups
//
always @(spr_addr)
case (spr_addr[`OR1200_SPR_GROUP_BITS]) // synopsys parallel_case
`OR1200_SPR_GROUP_WIDTH'd00: unqualified_cs = 32'b00000000_00000000_00000000_00000001;
`OR1200_SPR_GROUP_WIDTH'd01: unqualified_cs = 32'b00000000_00000000_00000000_00000010;
`OR1200_SPR_GROUP_WIDTH'd02: unqualified_cs = 32'b00000000_00000000_00000000_00000100;
`OR1200_SPR_GROUP_WIDTH'd03: unqualified_cs = 32'b00000000_00000000_00000000_00001000;
`OR1200_SPR_GROUP_WIDTH'd04: unqualified_cs = 32'b00000000_00000000_00000000_00010000;
`OR1200_SPR_GROUP_WIDTH'd05: unqualified_cs = 32'b00000000_00000000_00000000_00100000;
`OR1200_SPR_GROUP_WIDTH'd06: unqualified_cs = 32'b00000000_00000000_00000000_01000000;
`OR1200_SPR_GROUP_WIDTH'd07: unqualified_cs = 32'b00000000_00000000_00000000_10000000;
`OR1200_SPR_GROUP_WIDTH'd08: unqualified_cs = 32'b00000000_00000000_00000001_00000000;
`OR1200_SPR_GROUP_WIDTH'd09: unqualified_cs = 32'b00000000_00000000_00000010_00000000;
`OR1200_SPR_GROUP_WIDTH'd10: unqualified_cs = 32'b00000000_00000000_00000100_00000000;
`OR1200_SPR_GROUP_WIDTH'd11: unqualified_cs = 32'b00000000_00000000_00001000_00000000;
`OR1200_SPR_GROUP_WIDTH'd12: unqualified_cs = 32'b00000000_00000000_00010000_00000000;
`OR1200_SPR_GROUP_WIDTH'd13: unqualified_cs = 32'b00000000_00000000_00100000_00000000;
`OR1200_SPR_GROUP_WIDTH'd14: unqualified_cs = 32'b00000000_00000000_01000000_00000000;
`OR1200_SPR_GROUP_WIDTH'd15: unqualified_cs = 32'b00000000_00000000_10000000_00000000;
`OR1200_SPR_GROUP_WIDTH'd16: unqualified_cs = 32'b00000000_00000001_00000000_00000000;
`OR1200_SPR_GROUP_WIDTH'd17: unqualified_cs = 32'b00000000_00000010_00000000_00000000;
`OR1200_SPR_GROUP_WIDTH'd18: unqualified_cs = 32'b00000000_00000100_00000000_00000000;
`OR1200_SPR_GROUP_WIDTH'd19: unqualified_cs = 32'b00000000_00001000_00000000_00000000;
`OR1200_SPR_GROUP_WIDTH'd20: unqualified_cs = 32'b00000000_00010000_00000000_00000000;
`OR1200_SPR_GROUP_WIDTH'd21: unqualified_cs = 32'b00000000_00100000_00000000_00000000;
`OR1200_SPR_GROUP_WIDTH'd22: unqualified_cs = 32'b00000000_01000000_00000000_00000000;
`OR1200_SPR_GROUP_WIDTH'd23: unqualified_cs = 32'b00000000_10000000_00000000_00000000;
`OR1200_SPR_GROUP_WIDTH'd24: unqualified_cs = 32'b00000001_00000000_00000000_00000000;
`OR1200_SPR_GROUP_WIDTH'd25: unqualified_cs = 32'b00000010_00000000_00000000_00000000;
`OR1200_SPR_GROUP_WIDTH'd26: unqualified_cs = 32'b00000100_00000000_00000000_00000000;
`OR1200_SPR_GROUP_WIDTH'd27: unqualified_cs = 32'b00001000_00000000_00000000_00000000;
`OR1200_SPR_GROUP_WIDTH'd28: unqualified_cs = 32'b00010000_00000000_00000000_00000000;
`OR1200_SPR_GROUP_WIDTH'd29: unqualified_cs = 32'b00100000_00000000_00000000_00000000;
`OR1200_SPR_GROUP_WIDTH'd30: unqualified_cs = 32'b01000000_00000000_00000000_00000000;
`OR1200_SPR_GROUP_WIDTH'd31: unqualified_cs = 32'b10000000_00000000_00000000_00000000;
endcase
 
//
// SPRs System Group
//
 
//
// What to write into SR
//
assign to_sr[`OR1200_SR_FO:`OR1200_SR_OV] =
(branch_op == `OR1200_BRANCHOP_RFE) ? esr[`OR1200_SR_FO:`OR1200_SR_OV] :
(write_spr && sr_sel) ? {1'b1, spr_dat_o[`OR1200_SR_FO-1:`OR1200_SR_OV]}:
sr[`OR1200_SR_FO:`OR1200_SR_OV];
assign to_sr[`OR1200_SR_CY] =
(branch_op == `OR1200_BRANCHOP_RFE) ? esr[`OR1200_SR_CY] :
cy_we ? cyforw :
(write_spr && sr_sel) ? spr_dat_o[`OR1200_SR_CY] :
sr[`OR1200_SR_CY];
assign to_sr[`OR1200_SR_F] =
(branch_op == `OR1200_BRANCHOP_RFE) ? esr[`OR1200_SR_F] :
flag_we ? flagforw :
(write_spr && sr_sel) ? spr_dat_o[`OR1200_SR_F] :
sr[`OR1200_SR_F];
assign to_sr[`OR1200_SR_CE:`OR1200_SR_SM] =
(branch_op == `OR1200_BRANCHOP_RFE) ? esr[`OR1200_SR_CE:`OR1200_SR_SM] :
(write_spr && sr_sel) ? spr_dat_o[`OR1200_SR_CE:`OR1200_SR_SM]:
sr[`OR1200_SR_CE:`OR1200_SR_SM];
 
//
// Selects for system SPRs
//
assign cfgr_sel = (spr_cs[`OR1200_SPR_GROUP_SYS] && (spr_addr[10:4] == `OR1200_SPR_CFGR));
assign rf_sel = (spr_cs[`OR1200_SPR_GROUP_SYS] && (spr_addr[10:5] == `OR1200_SPR_RF));
assign npc_sel = (spr_cs[`OR1200_SPR_GROUP_SYS] && (spr_addr[10:0] == `OR1200_SPR_NPC));
assign ppc_sel = (spr_cs[`OR1200_SPR_GROUP_SYS] && (spr_addr[10:0] == `OR1200_SPR_PPC));
assign sr_sel = (spr_cs[`OR1200_SPR_GROUP_SYS] && (spr_addr[10:0] == `OR1200_SPR_SR));
assign epcr_sel = (spr_cs[`OR1200_SPR_GROUP_SYS] && (spr_addr[10:0] == `OR1200_SPR_EPCR));
assign eear_sel = (spr_cs[`OR1200_SPR_GROUP_SYS] && (spr_addr[10:0] == `OR1200_SPR_EEAR));
assign esr_sel = (spr_cs[`OR1200_SPR_GROUP_SYS] && (spr_addr[10:0] == `OR1200_SPR_ESR));
 
//
// Write enables for system SPRs
//
assign sr_we = (write_spr && sr_sel) | (branch_op == `OR1200_BRANCHOP_RFE) | flag_we | cy_we;
assign pc_we = (write_spr && (npc_sel | ppc_sel));
assign epcr_we = (write_spr && epcr_sel);
assign eear_we = (write_spr && eear_sel);
assign esr_we = (write_spr && esr_sel);
 
//
// Output from system SPRs
//
assign sys_data = (spr_dat_cfgr & {32{read_spr & cfgr_sel}}) |
(spr_dat_rf & {32{read_spr & rf_sel}}) |
(spr_dat_npc & {32{read_spr & npc_sel}}) |
(spr_dat_ppc & {32{read_spr & ppc_sel}}) |
({{32-`OR1200_SR_WIDTH{1'b0}},sr} & {32{read_spr & sr_sel}}) |
(epcr & {32{read_spr & epcr_sel}}) |
(eear & {32{read_spr & eear_sel}}) |
({{32-`OR1200_SR_WIDTH{1'b0}},esr} & {32{read_spr & esr_sel}});
 
//
// Flag alias
//
assign flag = sr[`OR1200_SR_F];
 
//
// Carry alias
//
assign carry = sr[`OR1200_SR_CY];
 
//
// Supervision register
//
always @(posedge clk or posedge rst)
if (rst)
sr <= #1 {1'b1, `OR1200_SR_EPH_DEF, {`OR1200_SR_WIDTH-3{1'b0}}, 1'b1};
else if (except_started) begin
sr[`OR1200_SR_SM] <= #1 1'b1;
sr[`OR1200_SR_TEE] <= #1 1'b0;
sr[`OR1200_SR_IEE] <= #1 1'b0;
sr[`OR1200_SR_DME] <= #1 1'b0;
sr[`OR1200_SR_IME] <= #1 1'b0;
end
else if (sr_we)
sr <= #1 to_sr[`OR1200_SR_WIDTH-1:0];
 
//
// MTSPR/MFSPR interface
//
always @(sprs_op or spr_addr or sys_data or spr_dat_mac or spr_dat_pic or spr_dat_pm or
spr_dat_dmmu or spr_dat_immu or spr_dat_du or spr_dat_tt) begin
case (sprs_op) // synopsys parallel_case
`OR1200_ALUOP_MTSR : begin
write_spr = 1'b1;
read_spr = 1'b0;
to_wbmux = 32'b0;
end
`OR1200_ALUOP_MFSR : begin
casex (spr_addr[`OR1200_SPR_GROUP_BITS]) // synopsys parallel_case
`OR1200_SPR_GROUP_TT:
to_wbmux = spr_dat_tt;
`OR1200_SPR_GROUP_PIC:
to_wbmux = spr_dat_pic;
`OR1200_SPR_GROUP_PM:
to_wbmux = spr_dat_pm;
`OR1200_SPR_GROUP_DMMU:
to_wbmux = spr_dat_dmmu;
`OR1200_SPR_GROUP_IMMU:
to_wbmux = spr_dat_immu;
`OR1200_SPR_GROUP_MAC:
to_wbmux = spr_dat_mac;
`OR1200_SPR_GROUP_DU:
to_wbmux = spr_dat_du;
`OR1200_SPR_GROUP_SYS:
to_wbmux = sys_data;
default:
to_wbmux = 32'b0;
endcase
write_spr = 1'b0;
read_spr = 1'b1;
end
default : begin
write_spr = 1'b0;
read_spr = 1'b0;
to_wbmux = 32'b0;
end
endcase
end
 
endmodule
/tags/rel_26/or1200/rtl/verilog/or1200_genpc.v
0,0 → 1,310
//////////////////////////////////////////////////////////////////////
//// ////
//// OR1200's generate PC ////
//// ////
//// This file is part of the OpenRISC 1200 project ////
//// http://www.opencores.org/cores/or1k/ ////
//// ////
//// Description ////
//// PC, interface to IC. ////
//// ////
//// To Do: ////
//// - make it smaller and faster ////
//// ////
//// Author(s): ////
//// - Damjan Lampret, lampret@opencores.org ////
//// ////
//////////////////////////////////////////////////////////////////////
//// ////
//// Copyright (C) 2000 Authors and OPENCORES.ORG ////
//// ////
//// This source file may be used and distributed without ////
//// restriction provided that this copyright statement is not ////
//// removed from the file and that any derivative work contains ////
//// the original copyright notice and the associated disclaimer. ////
//// ////
//// This source file is free software; you can redistribute it ////
//// and/or modify it under the terms of the GNU Lesser General ////
//// Public License as published by the Free Software Foundation; ////
//// either version 2.1 of the License, or (at your option) any ////
//// later version. ////
//// ////
//// This source is distributed in the hope that it will be ////
//// useful, but WITHOUT ANY WARRANTY; without even the implied ////
//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR ////
//// PURPOSE. See the GNU Lesser General Public License for more ////
//// details. ////
//// ////
//// You should have received a copy of the GNU Lesser General ////
//// Public License along with this source; if not, download it ////
//// from http://www.opencores.org/lgpl.shtml ////
//// ////
//////////////////////////////////////////////////////////////////////
//
// CVS Revision History
//
// $Log: not supported by cvs2svn $
// Revision 1.7.4.2 2003/12/04 23:44:31 lampret
// Static exception prefix.
//
// Revision 1.7.4.1 2003/07/08 15:36:37 lampret
// Added embedded memory QMEM.
//
// Revision 1.7 2003/04/20 22:23:57 lampret
// No functional change. Only added customization for exception vectors.
//
// Revision 1.6 2002/03/29 15:16:55 lampret
// Some of the warnings fixed.
//
// Revision 1.5 2002/02/11 04:33:17 lampret
// Speed optimizations (removed duplicate _cyc_ and _stb_). Fixed D/IMMU cache-inhibit attr.
//
// Revision 1.4 2002/01/28 01:16:00 lampret
// Changed 'void' nop-ops instead of insn[0] to use insn[16]. Debug unit stalls the tick timer. Prepared new flag generation for add and and insns. Blocked DC/IC while they are turned off. Fixed I/D MMU SPRs layout except WAYs. TODO: smart IC invalidate, l.j 2 and TLB ways.
//
// Revision 1.3 2002/01/18 07:56:00 lampret
// No more low/high priority interrupts (PICPR removed). Added tick timer exception. Added exception prefix (SR[EPH]). Fixed single-step bug whenreading NPC.
//
// Revision 1.2 2002/01/14 06:18:22 lampret
// Fixed mem2reg bug in FAST implementation. Updated debug unit to work with new genpc/if.
//
// Revision 1.1 2002/01/03 08:16:15 lampret
// New prefixes for RTL files, prefixed module names. Updated cache controllers and MMUs.
//
// Revision 1.10 2001/11/20 18:46:15 simons
// Break point bug fixed
//
// Revision 1.9 2001/11/18 09:58:28 lampret
// Fixed some l.trap typos.
//
// Revision 1.8 2001/11/18 08:36:28 lampret
// For GDB changed single stepping and disabled trap exception.
//
// Revision 1.7 2001/10/21 17:57:16 lampret
// Removed params from generic_XX.v. Added translate_off/on in sprs.v and id.v. Removed spr_addr from dc.v and ic.v. Fixed CR+LF.
//
// Revision 1.6 2001/10/14 13:12:09 lampret
// MP3 version.
//
// Revision 1.1.1.1 2001/10/06 10:18:36 igorm
// no message
//
// Revision 1.1 2001/08/09 13:39:33 lampret
// Major clean-up.
//
//
 
// synopsys translate_off
`include "timescale.v"
// synopsys translate_on
`include "or1200_defines.v"
 
module or1200_genpc(
// Clock and reset
clk, rst,
 
// External i/f to IC
icpu_adr_o, icpu_cycstb_o, icpu_sel_o, icpu_tag_o,
icpu_rty_i, icpu_adr_i,
 
// Internal i/f
branch_op, except_type, except_prefix,
branch_addrofs, lr_restor, flag, taken, except_start,
binsn_addr, epcr, spr_dat_i, spr_pc_we, genpc_refetch,
genpc_freeze, genpc_stop_prefetch, no_more_dslot
);
 
//
// I/O
//
 
//
// Clock and reset
//
input clk;
input rst;
 
//
// External i/f to IC
//
output [31:0] icpu_adr_o;
output icpu_cycstb_o;
output [3:0] icpu_sel_o;
output [3:0] icpu_tag_o;
input icpu_rty_i;
input [31:0] icpu_adr_i;
 
//
// Internal i/f
//
input [`OR1200_BRANCHOP_WIDTH-1:0] branch_op;
input [`OR1200_EXCEPT_WIDTH-1:0] except_type;
input except_prefix;
input [31:2] branch_addrofs;
input [31:0] lr_restor;
input flag;
output taken;
input except_start;
input [31:2] binsn_addr;
input [31:0] epcr;
input [31:0] spr_dat_i;
input spr_pc_we;
input genpc_refetch;
input genpc_stop_prefetch;
input genpc_freeze;
input no_more_dslot;
 
//
// Internal wires and regs
//
reg [31:2] pcreg;
reg [31:0] pc;
reg taken; /* Set to in case of jump or taken branch */
reg genpc_refetch_r;
 
//
// Address of insn to be fecthed
//
assign icpu_adr_o = !no_more_dslot & !except_start & !spr_pc_we & (icpu_rty_i | genpc_refetch) ? icpu_adr_i : pc;
// assign icpu_adr_o = !except_start & !spr_pc_we & (icpu_rty_i | genpc_refetch) ? icpu_adr_i : pc;
 
//
// Control access to IC subsystem
//
// assign icpu_cycstb_o = !genpc_freeze & !no_more_dslot;
assign icpu_cycstb_o = !genpc_freeze; // works, except remaining raised cycstb during long load/store
//assign icpu_cycstb_o = !(genpc_freeze | genpc_refetch & genpc_refetch_r);
//assign icpu_cycstb_o = !(genpc_freeze | genpc_stop_prefetch);
assign icpu_sel_o = 4'b1111;
assign icpu_tag_o = `OR1200_ITAG_NI;
 
//
// genpc_freeze_r
//
always @(posedge clk or posedge rst)
if (rst)
genpc_refetch_r <= #1 1'b0;
else if (genpc_refetch)
genpc_refetch_r <= #1 1'b1;
else
genpc_refetch_r <= #1 1'b0;
 
//
// Async calculation of new PC value. This value is used for addressing the IC.
//
always @(pcreg or branch_addrofs or binsn_addr or flag or branch_op or except_type
or except_start or lr_restor or epcr or spr_pc_we or spr_dat_i or except_prefix) begin
casex ({spr_pc_we, except_start, branch_op}) // synopsys parallel_case
{2'b00, `OR1200_BRANCHOP_NOP}: begin
pc = {pcreg + 1'd1, 2'b0};
taken = 1'b0;
end
{2'b00, `OR1200_BRANCHOP_J}: begin
`ifdef OR1200_VERBOSE
// synopsys translate_off
$display("%t: BRANCHOP_J: pc <= branch_addrofs %h", $time, branch_addrofs);
// synopsys translate_on
`endif
pc = {branch_addrofs, 2'b0};
taken = 1'b1;
end
{2'b00, `OR1200_BRANCHOP_JR}: begin
`ifdef OR1200_VERBOSE
// synopsys translate_off
$display("%t: BRANCHOP_JR: pc <= lr_restor %h", $time, lr_restor);
// synopsys translate_on
`endif
pc = lr_restor;
taken = 1'b1;
end
{2'b00, `OR1200_BRANCHOP_BAL}: begin
`ifdef OR1200_VERBOSE
// synopsys translate_off
$display("%t: BRANCHOP_BAL: pc %h = binsn_addr %h + branch_addrofs %h", $time, binsn_addr + branch_addrofs, binsn_addr, branch_addrofs);
// synopsys translate_on
`endif
pc = {binsn_addr + branch_addrofs, 2'b0};
taken = 1'b1;
end
{2'b00, `OR1200_BRANCHOP_BF}:
if (flag) begin
`ifdef OR1200_VERBOSE
// synopsys translate_off
$display("%t: BRANCHOP_BF: pc %h = binsn_addr %h + branch_addrofs %h", $time, binsn_addr + branch_addrofs, binsn_addr, branch_addrofs);
// synopsys translate_on
`endif
pc = {binsn_addr + branch_addrofs, 2'b0};
taken = 1'b1;
end
else begin
`ifdef OR1200_VERBOSE
// synopsys translate_off
$display("%t: BRANCHOP_BF: not taken", $time);
// synopsys translate_on
`endif
pc = {pcreg + 1'd1, 2'b0};
taken = 1'b0;
end
{2'b00, `OR1200_BRANCHOP_BNF}:
if (flag) begin
pc = {pcreg + 1'd1, 2'b0};
`ifdef OR1200_VERBOSE
// synopsys translate_off
$display("%t: BRANCHOP_BNF: not taken", $time);
// synopsys translate_on
`endif
taken = 1'b0;
end
else begin
`ifdef OR1200_VERBOSE
// synopsys translate_off
$display("%t: BRANCHOP_BNF: pc %h = binsn_addr %h + branch_addrofs %h", $time, binsn_addr + branch_addrofs, binsn_addr, branch_addrofs);
// synopsys translate_on
`endif
pc = {binsn_addr + branch_addrofs, 2'b0};
taken = 1'b1;
end
{2'b00, `OR1200_BRANCHOP_RFE}: begin
`ifdef OR1200_VERBOSE
// synopsys translate_off
$display("%t: BRANCHOP_RFE: pc <= epcr %h", $time, epcr);
// synopsys translate_on
`endif
pc = epcr;
taken = 1'b1;
end
{2'b01, 3'bxxx}: begin
`ifdef OR1200_VERBOSE
// synopsys translate_off
$display("Starting exception: %h.", except_type);
// synopsys translate_on
`endif
pc = {(except_prefix ? `OR1200_EXCEPT_EPH1_P : `OR1200_EXCEPT_EPH0_P), except_type, `OR1200_EXCEPT_V};
taken = 1'b1;
end
default: begin
`ifdef OR1200_VERBOSE
// synopsys translate_off
$display("l.mtspr writing into PC: %h.", spr_dat_i);
// synopsys translate_on
`endif
pc = spr_dat_i;
taken = 1'b0;
end
endcase
end
 
//
// PC register
//
always @(posedge clk or posedge rst)
if (rst)
// pcreg <= #1 30'd63;
pcreg <= #1 ({(except_prefix ? `OR1200_EXCEPT_EPH1_P : `OR1200_EXCEPT_EPH0_P), `OR1200_EXCEPT_RESET, `OR1200_EXCEPT_V} - 1) >> 2;
else if (spr_pc_we)
pcreg <= #1 spr_dat_i[31:2];
else if (no_more_dslot | except_start | !genpc_freeze & !icpu_rty_i & !genpc_refetch)
// else if (except_start | !genpc_freeze & !icpu_rty_i & !genpc_refetch)
pcreg <= #1 pc[31:2];
 
endmodule
/tags/rel_26/or1200/rtl/verilog/or1200_dc_ram.v
0,0 → 1,152
 
//////////////////////////////////////////////////////////////////////
//// ////
//// OR1200's DC RAMs ////
//// ////
//// This file is part of the OpenRISC 1200 project ////
//// http://www.opencores.org/cores/or1k/ ////
//// ////
//// Description ////
//// Instatiation of DC RAM blocks. ////
//// ////
//// To Do: ////
//// - make it smaller and faster ////
//// ////
//// Author(s): ////
//// - Damjan Lampret, lampret@opencores.org ////
//// ////
//////////////////////////////////////////////////////////////////////
//// ////
//// Copyright (C) 2000 Authors and OPENCORES.ORG ////
//// ////
//// This source file may be used and distributed without ////
//// restriction provided that this copyright statement is not ////
//// removed from the file and that any derivative work contains ////
//// the original copyright notice and the associated disclaimer. ////
//// ////
//// This source file is free software; you can redistribute it ////
//// and/or modify it under the terms of the GNU Lesser General ////
//// Public License as published by the Free Software Foundation; ////
//// either version 2.1 of the License, or (at your option) any ////
//// later version. ////
//// ////
//// This source is distributed in the hope that it will be ////
//// useful, but WITHOUT ANY WARRANTY; without even the implied ////
//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR ////
//// PURPOSE. See the GNU Lesser General Public License for more ////
//// details. ////
//// ////
//// You should have received a copy of the GNU Lesser General ////
//// Public License along with this source; if not, download it ////
//// from http://www.opencores.org/lgpl.shtml ////
//// ////
//////////////////////////////////////////////////////////////////////
//
// CVS Revision History
//
// $Log: not supported by cvs2svn $
// Revision 1.2.4.1 2003/12/09 11:46:48 simons
// Mbist nameing changed, Artisan ram instance signal names fixed, some synthesis waning fixed.
//
// Revision 1.2 2002/10/17 20:04:40 lampret
// Added BIST scan. Special VS RAMs need to be used to implement BIST.
//
// Revision 1.1 2002/01/03 08:16:15 lampret
// New prefixes for RTL files, prefixed module names. Updated cache controllers and MMUs.
//
// Revision 1.8 2001/10/21 17:57:16 lampret
// Removed params from generic_XX.v. Added translate_off/on in sprs.v and id.v. Removed spr_addr from dc.v and ic.v. Fixed CR+LF.
//
// Revision 1.7 2001/10/14 13:12:09 lampret
// MP3 version.
//
// Revision 1.1.1.1 2001/10/06 10:18:36 igorm
// no message
//
// Revision 1.2 2001/08/09 13:39:33 lampret
// Major clean-up.
//
// Revision 1.1 2001/07/20 00:46:03 lampret
// Development version of RTL. Libraries are missing.
//
//
 
// synopsys translate_off
`include "timescale.v"
// synopsys translate_on
`include "or1200_defines.v"
 
module or1200_dc_ram(
// Reset and clock
clk, rst,
 
`ifdef OR1200_BIST
// RAM BIST
mbist_si_i, mbist_so_o, mbist_ctrl_i,
`endif
 
// Internal i/f
addr, en, we, datain, dataout
);
 
parameter dw = `OR1200_OPERAND_WIDTH;
parameter aw = `OR1200_DCINDX;
 
//
// I/O
//
input clk;
input rst;
input [aw-1:0] addr;
input en;
input [3:0] we;
input [dw-1:0] datain;
output [dw-1:0] dataout;
 
`ifdef OR1200_BIST
//
// RAM BIST
//
input mbist_si_i;
input [`OR1200_MBIST_CTRL_WIDTH - 1:0] mbist_ctrl_i; // bist chain shift control
output mbist_so_o;
`endif
 
`ifdef OR1200_NO_DC
 
//
// Data cache not implemented
//
assign dataout = {dw{1'b0}};
`ifdef OR1200_BIST
assign mbist_so_o = mbist_si_i;
`endif
 
`else
 
//
// Instantiation of RAM block
//
`ifdef OR1200_DC_1W_4KB
or1200_spram_1024x32_bw dc_ram(
`endif
`ifdef OR1200_DC_1W_8KB
or1200_spram_2048x32_bw dc_ram(
`endif
`ifdef OR1200_BIST
// RAM BIST
.mbist_si_i(mbist_si_i),
.mbist_so_o(mbist_so_o),
.mbist_ctrl_i(mbist_ctrl_i),
`endif
.clk(clk),
.rst(rst),
.ce(en),
.we(we),
.oe(1'b1),
.addr(addr),
.di(datain),
.do(dataout)
);
`endif
endmodule
/tags/rel_26/or1200/rtl/verilog/or1200_spram_1024x8.v
0,0 → 1,358
//////////////////////////////////////////////////////////////////////
//// ////
//// Generic Single-Port Synchronous RAM ////
//// ////
//// This file is part of memory library available from ////
//// http://www.opencores.org/cvsweb.shtml/generic_memories/ ////
//// ////
//// Description ////
//// This block is a wrapper with common single-port ////
//// synchronous memory interface for different ////
//// types of ASIC and FPGA RAMs. Beside universal memory ////
//// interface it also provides behavioral model of generic ////
//// single-port synchronous RAM. ////
//// It should be used in all OPENCORES designs that want to be ////
//// portable accross different target technologies and ////
//// independent of target memory. ////
//// ////
//// Supported ASIC RAMs are: ////
//// - Artisan Single-Port Sync RAM ////
//// - Avant! Two-Port Sync RAM (*) ////
//// - Virage Single-Port Sync RAM ////
//// - Virtual Silicon Single-Port Sync RAM ////
//// ////
//// Supported FPGA RAMs are: ////
//// - Xilinx Virtex RAMB4_S16 ////
//// - Altera LPM ////
//// ////
//// To Do: ////
//// - xilinx rams need external tri-state logic ////
//// - fix avant! two-port ram ////
//// - add additional RAMs ////
//// ////
//// Author(s): ////
//// - Damjan Lampret, lampret@opencores.org ////
//// ////
//////////////////////////////////////////////////////////////////////
//// ////
//// Copyright (C) 2000 Authors and OPENCORES.ORG ////
//// ////
//// This source file may be used and distributed without ////
//// restriction provided that this copyright statement is not ////
//// removed from the file and that any derivative work contains ////
//// the original copyright notice and the associated disclaimer. ////
//// ////
//// This source file is free software; you can redistribute it ////
//// and/or modify it under the terms of the GNU Lesser General ////
//// Public License as published by the Free Software Foundation; ////
//// either version 2.1 of the License, or (at your option) any ////
//// later version. ////
//// ////
//// This source is distributed in the hope that it will be ////
//// useful, but WITHOUT ANY WARRANTY; without even the implied ////
//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR ////
//// PURPOSE. See the GNU Lesser General Public License for more ////
//// details. ////
//// ////
//// You should have received a copy of the GNU Lesser General ////
//// Public License along with this source; if not, download it ////
//// from http://www.opencores.org/lgpl.shtml ////
//// ////
//////////////////////////////////////////////////////////////////////
//
// CVS Revision History
//
// $Log: not supported by cvs2svn $
// Revision 1.3 2003/04/07 01:19:07 lampret
// Added Altera LPM RAMs. Changed generic RAM output when OE inactive.
//
// Revision 1.2 2002/10/17 20:04:40 lampret
// Added BIST scan. Special VS RAMs need to be used to implement BIST.
//
// Revision 1.1 2002/01/03 08:16:15 lampret
// New prefixes for RTL files, prefixed module names. Updated cache controllers and MMUs.
//
// Revision 1.8 2001/11/02 18:57:14 lampret
// Modified virtual silicon instantiations.
//
// Revision 1.7 2001/10/21 17:57:16 lampret
// Removed params from generic_XX.v. Added translate_off/on in sprs.v and id.v. Removed spr_addr from dc.v and ic.v. Fixed CR+LF.
//
// Revision 1.6 2001/10/14 13:12:09 lampret
// MP3 version.
//
// Revision 1.1.1.1 2001/10/06 10:18:36 igorm
// no message
//
// Revision 1.1 2001/08/09 13:39:33 lampret
// Major clean-up.
//
// Revision 1.2 2001/07/30 05:38:02 lampret
// Adding empty directories required by HDL coding guidelines
//
//
 
// synopsys translate_off
`include "timescale.v"
// synopsys translate_on
`include "or1200_defines.v"
 
module or1200_spram_1024x8(
`ifdef OR1200_BIST
// RAM BIST
mbist_si_i, mbist_so_o, mbist_ctrl_i,
`endif
// Generic synchronous single-port RAM interface
clk, rst, ce, we, oe, addr, di, do
);
 
//
// Default address and data buses width
//
parameter aw = 10;
parameter dw = 8;
 
`ifdef OR1200_BIST
//
// RAM BIST
//
input mbist_si_i;
input [`OR1200_MBIST_CTRL_WIDTH - 1:0] mbist_ctrl_i;
output mbist_so_o;
`endif
 
//
// Generic synchronous single-port RAM interface
//
input clk; // Clock
input rst; // Reset
input ce; // Chip enable input
input we; // Write enable input
input oe; // Output enable input
input [aw-1:0] addr; // address bus inputs
input [dw-1:0] di; // input data bus
output [dw-1:0] do; // output data bus
 
//
// Internal wires and registers
//
 
`ifdef OR1200_ARTISAN_SSP
`else
`ifdef OR1200_VIRTUALSILICON_SSP
`else
`ifdef OR1200_BIST
assign mbist_so_o = mbist_si_i;
`endif
`endif
`endif
 
`ifdef OR1200_ARTISAN_SSP
 
//
// Instantiation of ASIC memory:
//
// Artisan Synchronous Single-Port RAM (ra1sh)
//
`ifdef UNUSED
art_hssp_1024x8 #(dw, 1<<aw, aw) artisan_ssp(
`else
`ifdef OR1200_BIST
art_hssp_1024x8_bist artisan_ssp(
`else
art_hssp_1024x8 artisan_ssp(
`endif
`endif
`ifdef OR1200_BIST
// RAM BIST
.mbist_si_i(mbist_si_i),
.mbist_so_o(mbist_so_o),
.mbist_ctrl_i(mbist_ctrl_i),
`endif
.CLK(clk),
.CEN(~ce),
.WEN(~we),
.A(addr),
.D(di),
.OEN(~oe),
.Q(do)
);
 
`else
 
`ifdef OR1200_AVANT_ATP
 
//
// Instantiation of ASIC memory:
//
// Avant! Asynchronous Two-Port RAM
//
avant_atp avant_atp(
.web(~we),
.reb(),
.oeb(~oe),
.rcsb(),
.wcsb(),
.ra(addr),
.wa(addr),
.di(di),
.do(do)
);
 
`else
 
`ifdef OR1200_VIRAGE_SSP
 
//
// Instantiation of ASIC memory:
//
// Virage Synchronous 1-port R/W RAM
//
virage_ssp virage_ssp(
.clk(clk),
.adr(addr),
.d(di),
.we(we),
.oe(oe),
.me(ce),
.q(do)
);
 
`else
 
`ifdef OR1200_VIRTUALSILICON_SSP
 
//
// Instantiation of ASIC memory:
//
// Virtual Silicon Single-Port Synchronous SRAM
//
`ifdef UNUSED
vs_hdsp_1024x8 #(1<<aw, aw-1, dw-1) vs_ssp(
`else
`ifdef OR1200_BIST
vs_hdsp_1024x8_bist vs_ssp(
`else
vs_hdsp_1024x8 vs_ssp(
`endif
`endif
`ifdef OR1200_BIST
// RAM BIST
.mbist_si_i(mbist_si_i),
.mbist_so_o(mbist_so_o),
.mbist_ctrl_i(mbist_ctrl_i),
`endif
.CK(clk),
.ADR(addr),
.DI(di),
.WEN(~we),
.CEN(~ce),
.OEN(~oe),
.DOUT(do)
);
 
`else
 
`ifdef OR1200_XILINX_RAMB4
 
//
// Instantiation of FPGA memory:
//
// Virtex/Spartan2
//
 
//
// Block 0
//
RAMB4_S4 ramb4_s4_0(
.CLK(clk),
.RST(rst),
.ADDR(addr),
.DI(di[3:0]),
.EN(ce),
.WE(we),
.DO(do[3:0])
);
 
//
// Block 1
//
RAMB4_S4 ramb4_s4_1(
.CLK(clk),
.RST(rst),
.ADDR(addr),
.DI(di[7:4]),
.EN(ce),
.WE(we),
.DO(do[7:4])
);
 
`else
 
`ifdef OR1200_ALTERA_LPM
 
//
// Instantiation of FPGA memory:
//
// Altera LPM
//
// Added By Jamil Khatib
//
 
wire wr;
 
assign wr = ce & we;
 
initial $display("Using Altera LPM.");
 
lpm_ram_dq lpm_ram_dq_component (
.address(addr),
.inclock(clk),
.outclock(clk),
.data(di),
.we(wr),
.q(do)
);
 
defparam lpm_ram_dq_component.lpm_width = dw,
lpm_ram_dq_component.lpm_widthad = aw,
lpm_ram_dq_component.lpm_indata = "REGISTERED",
lpm_ram_dq_component.lpm_address_control = "REGISTERED",
lpm_ram_dq_component.lpm_outdata = "UNREGISTERED",
lpm_ram_dq_component.lpm_hint = "USE_EAB=ON";
// examplar attribute lpm_ram_dq_component NOOPT TRUE
 
`else
 
//
// Generic single-port synchronous RAM model
//
 
//
// Generic RAM's registers and wires
//
reg [dw-1:0] mem [(1<<aw)-1:0]; // RAM content
reg [dw-1:0] do_reg; // RAM data output register
 
//
// Data output drivers
//
assign do = (oe) ? do_reg : {dw{1'b0}};
 
//
// RAM read and write
//
always @(posedge clk)
if (ce && !we)
do_reg <= #1 mem[addr];
else if (ce && we)
mem[addr] <= #1 di;
 
`endif // !OR1200_ALTERA_LPM
`endif // !OR1200_XILINX_RAMB4_S16
`endif // !OR1200_VIRTUALSILICON_SSP
`endif // !OR1200_VIRAGE_SSP
`endif // !OR1200_AVANT_ATP
`endif // !OR1200_ARTISAN_SSP
 
endmodule
/tags/rel_26/or1200/rtl/verilog/or1200_ic_top.v
0,0 → 1,335
//////////////////////////////////////////////////////////////////////
//// ////
//// OR1200's Data Cache top level ////
//// ////
//// This file is part of the OpenRISC 1200 project ////
//// http://www.opencores.org/cores/or1k/ ////
//// ////
//// Description ////
//// Instantiation of all IC blocks. ////
//// ////
//// To Do: ////
//// - make it smaller and faster ////
//// ////
//// Author(s): ////
//// - Damjan Lampret, lampret@opencores.org ////
//// ////
//////////////////////////////////////////////////////////////////////
//// ////
//// Copyright (C) 2000 Authors and OPENCORES.ORG ////
//// ////
//// This source file may be used and distributed without ////
//// restriction provided that this copyright statement is not ////
//// removed from the file and that any derivative work contains ////
//// the original copyright notice and the associated disclaimer. ////
//// ////
//// This source file is free software; you can redistribute it ////
//// and/or modify it under the terms of the GNU Lesser General ////
//// Public License as published by the Free Software Foundation; ////
//// either version 2.1 of the License, or (at your option) any ////
//// later version. ////
//// ////
//// This source is distributed in the hope that it will be ////
//// useful, but WITHOUT ANY WARRANTY; without even the implied ////
//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR ////
//// PURPOSE. See the GNU Lesser General Public License for more ////
//// details. ////
//// ////
//// You should have received a copy of the GNU Lesser General ////
//// Public License along with this source; if not, download it ////
//// from http://www.opencores.org/lgpl.shtml ////
//// ////
//////////////////////////////////////////////////////////////////////
//
// CVS Revision History
//
// $Log: not supported by cvs2svn $
// Revision 1.7.4.1 2003/07/08 15:36:37 lampret
// Added embedded memory QMEM.
//
// Revision 1.7 2002/10/17 20:04:40 lampret
// Added BIST scan. Special VS RAMs need to be used to implement BIST.
//
// Revision 1.6 2002/03/29 15:16:55 lampret
// Some of the warnings fixed.
//
// Revision 1.5 2002/02/11 04:33:17 lampret
// Speed optimizations (removed duplicate _cyc_ and _stb_). Fixed D/IMMU cache-inhibit attr.
//
// Revision 1.4 2002/02/01 19:56:54 lampret
// Fixed combinational loops.
//
// Revision 1.3 2002/01/28 01:16:00 lampret
// Changed 'void' nop-ops instead of insn[0] to use insn[16]. Debug unit stalls the tick timer. Prepared new flag generation for add and and insns. Blocked DC/IC while they are turned off. Fixed I/D MMU SPRs layout except WAYs. TODO: smart IC invalidate, l.j 2 and TLB ways.
//
// Revision 1.2 2002/01/14 06:18:22 lampret
// Fixed mem2reg bug in FAST implementation. Updated debug unit to work with new genpc/if.
//
// Revision 1.1 2002/01/03 08:16:15 lampret
// New prefixes for RTL files, prefixed module names. Updated cache controllers and MMUs.
//
// Revision 1.10 2001/10/21 17:57:16 lampret
// Removed params from generic_XX.v. Added translate_off/on in sprs.v and id.v. Removed spr_addr from ic.v and ic.v. Fixed CR+LF.
//
// Revision 1.9 2001/10/14 13:12:09 lampret
// MP3 version.
//
// Revision 1.1.1.1 2001/10/06 10:18:35 igorm
// no message
//
// Revision 1.4 2001/08/13 03:36:20 lampret
// Added cfg regs. Moved all defines into one defines.v file. More cleanup.
//
// Revision 1.3 2001/08/09 13:39:33 lampret
// Major clean-up.
//
// Revision 1.2 2001/07/22 03:31:53 lampret
// Fixed RAM's oen bug. Cache bypass under development.
//
// Revision 1.1 2001/07/20 00:46:03 lampret
// Development version of RTL. Libraries are missing.
//
//
 
// synopsys translate_off
`include "timescale.v"
// synopsys translate_on
`include "or1200_defines.v"
 
//
// Data cache
//
module or1200_ic_top(
// Rst, clk and clock control
clk, rst,
 
// External i/f
icbiu_dat_o, icbiu_adr_o, icbiu_cyc_o, icbiu_stb_o, icbiu_we_o, icbiu_sel_o, icbiu_cab_o,
icbiu_dat_i, icbiu_ack_i, icbiu_err_i,
 
// Internal i/f
ic_en,
icqmem_adr_i, icqmem_cycstb_i, icqmem_ci_i,
icqmem_sel_i, icqmem_tag_i,
icqmem_dat_o, icqmem_ack_o, icqmem_rty_o, icqmem_err_o, icqmem_tag_o,
 
`ifdef OR1200_BIST
// RAM BIST
mbist_si_i, mbist_so_o, mbist_ctrl_i,
`endif
 
// SPRs
spr_cs, spr_write, spr_dat_i
);
 
parameter dw = `OR1200_OPERAND_WIDTH;
 
//
// I/O
//
 
//
// Clock and reset
//
input clk;
input rst;
 
//
// External I/F
//
output [dw-1:0] icbiu_dat_o;
output [31:0] icbiu_adr_o;
output icbiu_cyc_o;
output icbiu_stb_o;
output icbiu_we_o;
output [3:0] icbiu_sel_o;
output icbiu_cab_o;
input [dw-1:0] icbiu_dat_i;
input icbiu_ack_i;
input icbiu_err_i;
 
//
// Internal I/F
//
input ic_en;
input [31:0] icqmem_adr_i;
input icqmem_cycstb_i;
input icqmem_ci_i;
input [3:0] icqmem_sel_i;
input [3:0] icqmem_tag_i;
output [dw-1:0] icqmem_dat_o;
output icqmem_ack_o;
output icqmem_rty_o;
output icqmem_err_o;
output [3:0] icqmem_tag_o;
 
`ifdef OR1200_BIST
//
// RAM BIST
//
input mbist_si_i;
input [`OR1200_MBIST_CTRL_WIDTH - 1:0] mbist_ctrl_i;
output mbist_so_o;
`endif
 
//
// SPR access
//
input spr_cs;
input spr_write;
input [31:0] spr_dat_i;
 
//
// Internal wires and regs
//
wire tag_v;
wire [`OR1200_ICTAG_W-2:0] tag;
wire [dw-1:0] to_icram;
wire [dw-1:0] from_icram;
wire [31:0] saved_addr;
wire [3:0] icram_we;
wire ictag_we;
wire [31:0] ic_addr;
wire icfsm_biu_read;
reg tagcomp_miss;
wire [`OR1200_ICINDXH:`OR1200_ICLS] ictag_addr;
wire ictag_en;
wire ictag_v;
wire ic_inv;
wire icfsm_first_hit_ack;
wire icfsm_first_miss_ack;
wire icfsm_first_miss_err;
wire icfsm_burst;
wire icfsm_tag_we;
`ifdef OR1200_BIST
//
// RAM BIST
//
wire mbist_ram_so;
wire mbist_tag_so;
wire mbist_ram_si = mbist_si_i;
wire mbist_tag_si = mbist_ram_so;
assign mbist_so_o = mbist_tag_so;
`endif
 
//
// Simple assignments
//
assign icbiu_adr_o = ic_addr;
assign ic_inv = spr_cs & spr_write;
assign ictag_we = icfsm_tag_we | ic_inv;
assign ictag_addr = ic_inv ? spr_dat_i[`OR1200_ICINDXH:`OR1200_ICLS] : ic_addr[`OR1200_ICINDXH:`OR1200_ICLS];
assign ictag_en = ic_inv | ic_en;
assign ictag_v = ~ic_inv;
 
//
// Data to BIU is from ICRAM when IC is enabled or from LSU when
// IC is disabled
//
assign icbiu_dat_o = 32'h00000000;
 
//
// Bypases of the IC when IC is disabled
//
assign icbiu_cyc_o = (ic_en) ? icfsm_biu_read : icqmem_cycstb_i;
assign icbiu_stb_o = (ic_en) ? icfsm_biu_read : icqmem_cycstb_i;
assign icbiu_we_o = 1'b0;
assign icbiu_sel_o = (ic_en & icfsm_biu_read) ? 4'b1111 : icqmem_sel_i;
assign icbiu_cab_o = (ic_en) ? icfsm_burst : 1'b0;
assign icqmem_rty_o = ~icqmem_ack_o & ~icqmem_err_o;
assign icqmem_tag_o = icqmem_err_o ? `OR1200_ITAG_BE : icqmem_tag_i;
 
//
// CPU normal and error termination
//
assign icqmem_ack_o = ic_en ? (icfsm_first_hit_ack | icfsm_first_miss_ack) : icbiu_ack_i;
assign icqmem_err_o = ic_en ? icfsm_first_miss_err : icbiu_err_i;
 
//
// Select between claddr generated by IC FSM and addr[3:2] generated by LSU
//
assign ic_addr = (icfsm_biu_read) ? saved_addr : icqmem_adr_i;
 
//
// Select between input data generated by LSU or by BIU
//
assign to_icram = icbiu_dat_i;
 
//
// Select between data generated by ICRAM or passed by BIU
//
assign icqmem_dat_o = icfsm_first_miss_ack | !ic_en ? icbiu_dat_i : from_icram;
 
//
// Tag comparison
//
always @(tag or saved_addr or tag_v) begin
if ((tag != saved_addr[31:`OR1200_ICTAGL]) || !tag_v)
tagcomp_miss = 1'b1;
else
tagcomp_miss = 1'b0;
end
 
//
// Instantiation of IC Finite State Machine
//
or1200_ic_fsm or1200_ic_fsm(
.clk(clk),
.rst(rst),
.ic_en(ic_en),
.icqmem_cycstb_i(icqmem_cycstb_i),
.icqmem_ci_i(icqmem_ci_i),
.tagcomp_miss(tagcomp_miss),
.biudata_valid(icbiu_ack_i),
.biudata_error(icbiu_err_i),
.start_addr(icqmem_adr_i),
.saved_addr(saved_addr),
.icram_we(icram_we),
.biu_read(icfsm_biu_read),
.first_hit_ack(icfsm_first_hit_ack),
.first_miss_ack(icfsm_first_miss_ack),
.first_miss_err(icfsm_first_miss_err),
.burst(icfsm_burst),
.tag_we(icfsm_tag_we)
);
 
//
// Instantiation of IC main memory
//
or1200_ic_ram or1200_ic_ram(
.clk(clk),
.rst(rst),
`ifdef OR1200_BIST
// RAM BIST
.mbist_si_i(mbist_ram_si),
.mbist_so_o(mbist_ram_so),
.mbist_ctrl_i(mbist_ctrl_i),
`endif
.addr(ic_addr[`OR1200_ICINDXH:2]),
.en(ic_en),
.we(icram_we),
.datain(to_icram),
.dataout(from_icram)
);
 
//
// Instantiation of IC TAG memory
//
or1200_ic_tag or1200_ic_tag(
.clk(clk),
.rst(rst),
`ifdef OR1200_BIST
// RAM BIST
.mbist_si_i(mbist_tag_si),
.mbist_so_o(mbist_tag_so),
.mbist_ctrl_i(mbist_ctrl_i),
`endif
.addr(ictag_addr),
.en(ictag_en),
.we(ictag_we),
.datain({ic_addr[31:`OR1200_ICTAGL], ictag_v}),
.tag_v(tag_v),
.tag(tag)
);
 
endmodule
/tags/rel_26/or1200/rtl/verilog/or1200_dc_tag.v
0,0 → 1,152
//////////////////////////////////////////////////////////////////////
//// ////
//// OR1200's DC TAG RAMs ////
//// ////
//// This file is part of the OpenRISC 1200 project ////
//// http://www.opencores.org/cores/or1k/ ////
//// ////
//// Description ////
//// Instatiation of data cache tag rams. ////
//// ////
//// To Do: ////
//// - make it smaller and faster ////
//// ////
//// Author(s): ////
//// - Damjan Lampret, lampret@opencores.org ////
//// ////
//////////////////////////////////////////////////////////////////////
//// ////
//// Copyright (C) 2000 Authors and OPENCORES.ORG ////
//// ////
//// This source file may be used and distributed without ////
//// restriction provided that this copyright statement is not ////
//// removed from the file and that any derivative work contains ////
//// the original copyright notice and the associated disclaimer. ////
//// ////
//// This source file is free software; you can redistribute it ////
//// and/or modify it under the terms of the GNU Lesser General ////
//// Public License as published by the Free Software Foundation; ////
//// either version 2.1 of the License, or (at your option) any ////
//// later version. ////
//// ////
//// This source is distributed in the hope that it will be ////
//// useful, but WITHOUT ANY WARRANTY; without even the implied ////
//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR ////
//// PURPOSE. See the GNU Lesser General Public License for more ////
//// details. ////
//// ////
//// You should have received a copy of the GNU Lesser General ////
//// Public License along with this source; if not, download it ////
//// from http://www.opencores.org/lgpl.shtml ////
//// ////
//////////////////////////////////////////////////////////////////////
//
// CVS Revision History
//
// $Log: not supported by cvs2svn $
// Revision 1.2 2002/10/17 20:04:40 lampret
// Added BIST scan. Special VS RAMs need to be used to implement BIST.
//
// Revision 1.1 2002/01/03 08:16:15 lampret
// New prefixes for RTL files, prefixed module names. Updated cache controllers and MMUs.
//
// Revision 1.8 2001/10/21 17:57:16 lampret
// Removed params from generic_XX.v. Added translate_off/on in sprs.v and id.v. Removed spr_addr from dc.v and ic.v. Fixed CR+LF.
//
// Revision 1.7 2001/10/14 13:12:09 lampret
// MP3 version.
//
// Revision 1.1.1.1 2001/10/06 10:18:36 igorm
// no message
//
// Revision 1.2 2001/08/09 13:39:33 lampret
// Major clean-up.
//
// Revision 1.1 2001/07/20 00:46:03 lampret
// Development version of RTL. Libraries are missing.
//
//
 
// synopsys translate_off
`include "timescale.v"
// synopsys translate_on
`include "or1200_defines.v"
 
module or1200_dc_tag(
// Clock and reset
clk, rst,
 
`ifdef OR1200_BIST
// RAM BIST
mbist_si_i, mbist_so_o, mbist_ctrl_i,
`endif
 
// Internal i/f
addr, en, we, datain, tag_v, tag
);
 
parameter dw = `OR1200_DCTAG_W;
parameter aw = `OR1200_DCTAG;
 
//
// I/O
//
input clk;
input rst;
input [aw-1:0] addr;
input en;
input we;
input [dw-1:0] datain;
output tag_v;
output [dw-2:0] tag;
 
`ifdef OR1200_BIST
//
// RAM BIST
//
input mbist_si_i;
input [`OR1200_MBIST_CTRL_WIDTH - 1:0] mbist_ctrl_i;
output mbist_so_o;
`endif
 
`ifdef OR1200_NO_DC
 
//
// Data cache not implemented
//
assign tag = {dw-1{1'b0}};
assign tag_v = 1'b0;
`ifdef OR1200_BIST
assign mbist_so_o = mbist_si_i;
`endif
 
`else
 
//
// Instantiation of TAG RAM block
//
`ifdef OR1200_DC_1W_4KB
or1200_spram_256x21 dc_tag0(
`endif
`ifdef OR1200_DC_1W_8KB
or1200_spram_512x20 dc_tag0(
`endif
`ifdef OR1200_BIST
// RAM BIST
.mbist_si_i(mbist_si_i),
.mbist_so_o(mbist_so_o),
.mbist_ctrl_i(mbist_ctrl_i),
`endif
.clk(clk),
.rst(rst),
.ce(en),
.we(we),
.oe(1'b1),
.addr(addr),
.di(datain),
.do({tag, tag_v})
);
 
`endif
 
endmodule
/tags/rel_26/or1200/rtl/verilog/or1200_spram_1024x32.v
0,0 → 1,439
//////////////////////////////////////////////////////////////////////
//// ////
//// Generic Single-Port Synchronous RAM ////
//// ////
//// This file is part of memory library available from ////
//// http://www.opencores.org/cvsweb.shtml/generic_memories/ ////
//// ////
//// Description ////
//// This block is a wrapper with common single-port ////
//// synchronous memory interface for different ////
//// types of ASIC and FPGA RAMs. Beside universal memory ////
//// interface it also provides behavioral model of generic ////
//// single-port synchronous RAM. ////
//// It should be used in all OPENCORES designs that want to be ////
//// portable accross different target technologies and ////
//// independent of target memory. ////
//// ////
//// Supported ASIC RAMs are: ////
//// - Artisan Single-Port Sync RAM ////
//// - Avant! Two-Port Sync RAM (*) ////
//// - Virage Single-Port Sync RAM ////
//// - Virtual Silicon Single-Port Sync RAM ////
//// ////
//// Supported FPGA RAMs are: ////
//// - Xilinx Virtex RAMB4_S16 ////
//// - Altera LPM ////
//// ////
//// To Do: ////
//// - xilinx rams need external tri-state logic ////
//// - fix avant! two-port ram ////
//// - add additional RAMs ////
//// ////
//// Author(s): ////
//// - Damjan Lampret, lampret@opencores.org ////
//// ////
//////////////////////////////////////////////////////////////////////
//// ////
//// Copyright (C) 2000 Authors and OPENCORES.ORG ////
//// ////
//// This source file may be used and distributed without ////
//// restriction provided that this copyright statement is not ////
//// removed from the file and that any derivative work contains ////
//// the original copyright notice and the associated disclaimer. ////
//// ////
//// This source file is free software; you can redistribute it ////
//// and/or modify it under the terms of the GNU Lesser General ////
//// Public License as published by the Free Software Foundation; ////
//// either version 2.1 of the License, or (at your option) any ////
//// later version. ////
//// ////
//// This source is distributed in the hope that it will be ////
//// useful, but WITHOUT ANY WARRANTY; without even the implied ////
//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR ////
//// PURPOSE. See the GNU Lesser General Public License for more ////
//// details. ////
//// ////
//// You should have received a copy of the GNU Lesser General ////
//// Public License along with this source; if not, download it ////
//// from http://www.opencores.org/lgpl.shtml ////
//// ////
//////////////////////////////////////////////////////////////////////
//
// CVS Revision History
//
// $Log: not supported by cvs2svn $
// Revision 1.3.4.1 2003/07/08 15:36:37 lampret
// Added embedded memory QMEM.
//
// Revision 1.3 2003/04/07 01:19:07 lampret
// Added Altera LPM RAMs. Changed generic RAM output when OE inactive.
//
// Revision 1.2 2002/10/17 20:04:40 lampret
// Added BIST scan. Special VS RAMs need to be used to implement BIST.
//
// Revision 1.1 2002/01/03 08:16:15 lampret
// New prefixes for RTL files, prefixed module names. Updated cache controllers and MMUs.
//
// Revision 1.8 2001/11/02 18:57:14 lampret
// Modified virtual silicon instantiations.
//
// Revision 1.7 2001/10/21 17:57:16 lampret
// Removed params from generic_XX.v. Added translate_off/on in sprs.v and id.v. Removed spr_addr from dc.v and ic.v. Fixed CR+LF.
//
// Revision 1.6 2001/10/14 13:12:09 lampret
// MP3 version.
//
// Revision 1.1.1.1 2001/10/06 10:18:36 igorm
// no message
//
// Revision 1.1 2001/08/09 13:39:33 lampret
// Major clean-up.
//
// Revision 1.2 2001/07/30 05:38:02 lampret
// Adding empty directories required by HDL coding guidelines
//
//
 
// synopsys translate_off
`include "timescale.v"
// synopsys translate_on
`include "or1200_defines.v"
 
module or1200_spram_1024x32(
`ifdef OR1200_BIST
// RAM BIST
mbist_si_i, mbist_so_o, mbist_ctrl_i,
`endif
// Generic synchronous single-port RAM interface
clk, rst, ce, we, oe, addr, di, do
);
 
//
// Default address and data buses width
//
parameter aw = 10;
parameter dw = 32;
 
`ifdef OR1200_BIST
//
// RAM BIST
//
input mbist_si_i;
input [`OR1200_MBIST_CTRL_WIDTH - 1:0] mbist_ctrl_i;
output mbist_so_o;
`endif
 
//
// Generic synchronous single-port RAM interface
//
input clk; // Clock
input rst; // Reset
input ce; // Chip enable input
input we; // Write enable input
input oe; // Output enable input
input [aw-1:0] addr; // address bus inputs
input [dw-1:0] di; // input data bus
output [dw-1:0] do; // output data bus
 
//
// Internal wires and registers
//
 
`ifdef OR1200_ARTISAN_SSP
`else
`ifdef OR1200_VIRTUALSILICON_SSP
`else
`ifdef OR1200_BIST
assign mbist_so_o = mbist_si_i;
`endif
`endif
`endif
 
`ifdef OR1200_ARTISAN_SSP
 
//
// Instantiation of ASIC memory:
//
// Artisan Synchronous Single-Port RAM (ra1sh)
//
`ifdef UNUSED
art_hssp_1024x32 #(dw, 1<<aw, aw) artisan_ssp(
`else
`ifdef OR1200_BIST
art_hssp_1024x32_bist artisan_ssp(
`else
art_hssp_1024x32 artisan_ssp(
`endif
`endif
`ifdef OR1200_BIST
// RAM BIST
.mbist_si_i(mbist_si_i),
.mbist_so_o(mbist_so_o),
.mbist_ctrl_i(mbist_ctrl_i),
`endif
.CLK(clk),
.CEN(~ce),
.WEN(~we),
.A(addr),
.D(di),
.OEN(~oe),
.Q(do)
);
 
`else
 
`ifdef OR1200_AVANT_ATP
 
//
// Instantiation of ASIC memory:
//
// Avant! Asynchronous Two-Port RAM
//
avant_atp avant_atp(
.web(~we),
.reb(),
.oeb(~oe),
.rcsb(),
.wcsb(),
.ra(addr),
.wa(addr),
.di(di),
.do(do)
);
 
`else
 
`ifdef OR1200_VIRAGE_SSP
 
//
// Instantiation of ASIC memory:
//
// Virage Synchronous 1-port R/W RAM
//
virage_ssp virage_ssp(
.clk(clk),
.adr(addr),
.d(di),
.we(we),
.oe(oe),
.me(ce),
.q(do)
);
 
`else
 
`ifdef OR1200_VIRTUALSILICON_SSP
 
//
// Instantiation of ASIC memory:
//
// Virtual Silicon Single-Port Synchronous SRAM
//
`ifdef UNUSED
vs_hdsp_1024x32 #(1<<aw, aw-1, dw-1) vs_ssp(
`else
`ifdef OR1200_BIST
vs_hdsp_1024x32_bist vs_ssp(
`else
vs_hdsp_1024x32 vs_ssp(
`endif
`endif
`ifdef OR1200_BIST
// RAM BIST
.mbist_si_i(mbist_si_i),
.mbist_so_o(mbist_so_o),
.mbist_ctrl_i(mbist_ctrl_i),
`endif
.CK(clk),
.ADR(addr),
.DI(di),
.WEN(~we),
.CEN(~ce),
.OEN(~oe),
.DOUT(do)
);
 
`else
 
`ifdef OR1200_XILINX_RAMB4
 
//
// Instantiation of FPGA memory:
//
// Virtex/Spartan2
//
 
//
// Block 0
//
RAMB4_S4 ramb4_s4_0(
.CLK(clk),
.RST(rst),
.ADDR(addr),
.DI(di[3:0]),
.EN(ce),
.WE(we),
.DO(do[3:0])
);
 
//
// Block 1
//
RAMB4_S4 ramb4_s4_1(
.CLK(clk),
.RST(rst),
.ADDR(addr),
.DI(di[7:4]),
.EN(ce),
.WE(we),
.DO(do[7:4])
);
 
//
// Block 2
//
RAMB4_S4 ramb4_s4_2(
.CLK(clk),
.RST(rst),
.ADDR(addr),
.DI(di[11:8]),
.EN(ce),
.WE(we),
.DO(do[11:8])
);
 
//
// Block 3
//
RAMB4_S4 ramb4_s4_3(
.CLK(clk),
.RST(rst),
.ADDR(addr),
.DI(di[15:12]),
.EN(ce),
.WE(we),
.DO(do[15:12])
);
 
//
// Block 4
//
RAMB4_S4 ramb4_s4_4(
.CLK(clk),
.RST(rst),
.ADDR(addr),
.DI(di[19:16]),
.EN(ce),
.WE(we),
.DO(do[19:16])
);
 
//
// Block 5
//
RAMB4_S4 ramb4_s4_5(
.CLK(clk),
.RST(rst),
.ADDR(addr),
.DI(di[23:20]),
.EN(ce),
.WE(we),
.DO(do[23:20])
);
 
//
// Block 6
//
RAMB4_S4 ramb4_s4_6(
.CLK(clk),
.RST(rst),
.ADDR(addr),
.DI(di[27:24]),
.EN(ce),
.WE(we),
.DO(do[27:24])
);
 
//
// Block 7
//
RAMB4_S4 ramb4_s4_7(
.CLK(clk),
.RST(rst),
.ADDR(addr),
.DI(di[31:28]),
.EN(ce),
.WE(we),
.DO(do[31:28])
);
 
`else
 
`ifdef OR1200_ALTERA_LPM
 
//
// Instantiation of FPGA memory:
//
// Altera LPM
//
// Added By Jamil Khatib
//
 
wire wr;
 
assign wr = ce & we;
 
initial $display("Using Altera LPM.");
 
lpm_ram_dq lpm_ram_dq_component (
.address(addr),
.inclock(clk),
.outclock(clk),
.data(di),
.we(wr),
.q(do)
);
 
defparam lpm_ram_dq_component.lpm_width = dw,
lpm_ram_dq_component.lpm_widthad = aw,
lpm_ram_dq_component.lpm_indata = "REGISTERED",
lpm_ram_dq_component.lpm_address_control = "REGISTERED",
lpm_ram_dq_component.lpm_outdata = "UNREGISTERED",
lpm_ram_dq_component.lpm_hint = "USE_EAB=ON";
// examplar attribute lpm_ram_dq_component NOOPT TRUE
 
`else
 
//
// Generic single-port synchronous RAM model
//
 
//
// Generic RAM's registers and wires
//
reg [dw-1:0] mem [(1<<aw)-1:0]; // RAM content
reg [dw-1:0] do_reg; // RAM data output register
 
//
// Data output drivers
//
assign do = (oe) ? do_reg : {dw{1'b0}};
 
//
// RAM read and write
//
always @(posedge clk)
if (ce && !we)
do_reg <= #1 mem[addr];
else if (ce && we)
mem[addr] <= #1 di;
 
`endif // !OR1200_ALTERA_LPM
`endif // !OR1200_XILINX_RAMB4_S16
`endif // !OR1200_VIRTUALSILICON_SSP
`endif // !OR1200_VIRAGE_SSP
`endif // !OR1200_AVANT_ATP
`endif // !OR1200_ARTISAN_SSP
 
endmodule
/tags/rel_26/or1200/rtl/verilog/or1200_spram_64x22.v
0,0 → 1,359
//////////////////////////////////////////////////////////////////////
//// ////
//// Generic Single-Port Synchronous RAM ////
//// ////
//// This file is part of memory library available from ////
//// http://www.opencores.org/cvsweb.shtml/generic_memories/ ////
//// ////
//// Description ////
//// This block is a wrapper with common single-port ////
//// synchronous memory interface for different ////
//// types of ASIC and FPGA RAMs. Beside universal memory ////
//// interface it also provides behavioral model of generic ////
//// single-port synchronous RAM. ////
//// It should be used in all OPENCORES designs that want to be ////
//// portable accross different target technologies and ////
//// independent of target memory. ////
//// ////
//// Supported ASIC RAMs are: ////
//// - Artisan Single-Port Sync RAM ////
//// - Avant! Two-Port Sync RAM (*) ////
//// - Virage Single-Port Sync RAM ////
//// - Virtual Silicon Single-Port Sync RAM ////
//// ////
//// Supported FPGA RAMs are: ////
//// - Xilinx Virtex RAMB4_S16 ////
//// - Altera LPM ////
//// ////
//// To Do: ////
//// - xilinx rams need external tri-state logic ////
//// - fix avant! two-port ram ////
//// - add additional RAMs ////
//// ////
//// Author(s): ////
//// - Damjan Lampret, lampret@opencores.org ////
//// ////
//////////////////////////////////////////////////////////////////////
//// ////
//// Copyright (C) 2000 Authors and OPENCORES.ORG ////
//// ////
//// This source file may be used and distributed without ////
//// restriction provided that this copyright statement is not ////
//// removed from the file and that any derivative work contains ////
//// the original copyright notice and the associated disclaimer. ////
//// ////
//// This source file is free software; you can redistribute it ////
//// and/or modify it under the terms of the GNU Lesser General ////
//// Public License as published by the Free Software Foundation; ////
//// either version 2.1 of the License, or (at your option) any ////
//// later version. ////
//// ////
//// This source is distributed in the hope that it will be ////
//// useful, but WITHOUT ANY WARRANTY; without even the implied ////
//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR ////
//// PURPOSE. See the GNU Lesser General Public License for more ////
//// details. ////
//// ////
//// You should have received a copy of the GNU Lesser General ////
//// Public License along with this source; if not, download it ////
//// from http://www.opencores.org/lgpl.shtml ////
//// ////
//////////////////////////////////////////////////////////////////////
//
// CVS Revision History
//
// $Log: not supported by cvs2svn $
// Revision 1.3 2003/04/07 01:19:07 lampret
// Added Altera LPM RAMs. Changed generic RAM output when OE inactive.
//
// Revision 1.2 2002/10/17 20:04:41 lampret
// Added BIST scan. Special VS RAMs need to be used to implement BIST.
//
// Revision 1.1 2002/01/03 08:16:15 lampret
// New prefixes for RTL files, prefixed module names. Updated cache controllers and MMUs.
//
// Revision 1.7 2001/11/02 18:57:14 lampret
// Modified virtual silicon instantiations.
//
// Revision 1.6 2001/10/21 17:57:16 lampret
// Removed params from generic_XX.v. Added translate_off/on in sprs.v and id.v. Removed spr_addr from dc.v and ic.v. Fixed CR+LF.
//
// Revision 1.5 2001/10/14 13:12:09 lampret
// MP3 version.
//
// Revision 1.1.1.1 2001/10/06 10:18:36 igorm
// no message
//
// Revision 1.1 2001/08/09 13:39:33 lampret
// Major clean-up.
//
// Revision 1.2 2001/07/30 05:38:02 lampret
// Adding empty directories required by HDL coding guidelines
//
//
 
// synopsys translate_off
`include "timescale.v"
// synopsys translate_on
`include "or1200_defines.v"
 
module or1200_spram_64x22(
`ifdef OR1200_BIST
// RAM BIST
mbist_si_i, mbist_so_o, mbist_ctrl_i,
`endif
// Generic synchronous single-port RAM interface
clk, rst, ce, we, oe, addr, di, do
);
 
//
// Default address and data buses width
//
parameter aw = 6;
parameter dw = 22;
 
`ifdef OR1200_BIST
//
// RAM BIST
//
input mbist_si_i;
input [`OR1200_MBIST_CTRL_WIDTH - 1:0] mbist_ctrl_i;
output mbist_so_o;
`endif
 
//
// Generic synchronous single-port RAM interface
//
input clk; // Clock
input rst; // Reset
input ce; // Chip enable input
input we; // Write enable input
input oe; // Output enable input
input [aw-1:0] addr; // address bus inputs
input [dw-1:0] di; // input data bus
output [dw-1:0] do; // output data bus
 
//
// Internal wires and registers
//
wire [9:0] unconnected;
 
`ifdef OR1200_ARTISAN_SSP
`else
`ifdef OR1200_VIRTUALSILICON_SSP
`else
`ifdef OR1200_BIST
assign mbist_so_o = mbist_si_i;
`endif
`endif
`endif
 
`ifdef OR1200_ARTISAN_SSP
 
//
// Instantiation of ASIC memory:
//
// Artisan Synchronous Single-Port RAM (ra1sh)
//
`ifdef UNUSED
art_hssp_64x22 #(dw, 1<<aw, aw) artisan_ssp(
`else
`ifdef OR1200_BIST
art_hssp_64x22_bist artisan_ssp(
`else
art_hssp_64x22 artisan_ssp(
`endif
`endif
`ifdef OR1200_BIST
// RAM BIST
.mbist_si_i(mbist_si_i),
.mbist_so_o(mbist_so_o),
.mbist_ctrl_i(mbist_ctrl_i),
`endif
.CLK(clk),
.CEN(~ce),
.WEN(~we),
.A(addr),
.D(di),
.OEN(~oe),
.Q(do)
);
 
`else
 
`ifdef OR1200_AVANT_ATP
 
//
// Instantiation of ASIC memory:
//
// Avant! Asynchronous Two-Port RAM
//
avant_atp avant_atp(
.web(~we),
.reb(),
.oeb(~oe),
.rcsb(),
.wcsb(),
.ra(addr),
.wa(addr),
.di(di),
.do(do)
);
 
`else
 
`ifdef OR1200_VIRAGE_SSP
 
//
// Instantiation of ASIC memory:
//
// Virage Synchronous 1-port R/W RAM
//
virage_ssp virage_ssp(
.clk(clk),
.adr(addr),
.d(di),
.we(we),
.oe(oe),
.me(ce),
.q(do)
);
 
`else
 
`ifdef OR1200_VIRTUALSILICON_SSP
 
//
// Instantiation of ASIC memory:
//
// Virtual Silicon Single-Port Synchronous SRAM
//
`ifdef UNUSED
vs_hdsp_64x22 #(1<<aw, aw-1, dw-1) vs_ssp(
`else
`ifdef OR1200_BIST
vs_hdsp_64x22_bist vs_ssp(
`else
vs_hdsp_64x22 vs_ssp(
`endif
`endif
`ifdef OR1200_BIST
// RAM BIST
.mbist_si_i(mbist_si_i),
.mbist_so_o(mbist_so_o),
.mbist_ctrl_i(mbist_ctrl_i),
`endif
.CK(clk),
.ADR(addr),
.DI(di),
.WEN(~we),
.CEN(~ce),
.OEN(~oe),
.DOUT(do)
);
 
`else
 
`ifdef OR1200_XILINX_RAMB4
 
//
// Instantiation of FPGA memory:
//
// Virtex/Spartan2
//
 
//
// Block 0
//
RAMB4_S16 ramb4_s16_0(
.CLK(clk),
.RST(rst),
.ADDR({2'b00, addr}),
.DI(di[15:0]),
.EN(ce),
.WE(we),
.DO(do[15:0])
);
 
//
// Block 1
//
RAMB4_S16 ramb4_s16_1(
.CLK(clk),
.RST(rst),
.ADDR({2'b00, addr}),
.DI({unconnected, di[21:16]}),
.EN(ce),
.WE(we),
.DO({unconnected, do[21:16]})
);
 
`else
 
`ifdef OR1200_ALTERA_LPM
 
//
// Instantiation of FPGA memory:
//
// Altera LPM
//
// Added By Jamil Khatib
//
 
wire wr;
 
assign wr = ce & we;
 
initial $display("Using Altera LPM.");
 
lpm_ram_dq lpm_ram_dq_component (
.address(addr),
.inclock(clk),
.outclock(clk),
.data(di),
.we(wr),
.q(do)
);
 
defparam lpm_ram_dq_component.lpm_width = dw,
lpm_ram_dq_component.lpm_widthad = aw,
lpm_ram_dq_component.lpm_indata = "REGISTERED",
lpm_ram_dq_component.lpm_address_control = "REGISTERED",
lpm_ram_dq_component.lpm_outdata = "UNREGISTERED",
lpm_ram_dq_component.lpm_hint = "USE_EAB=ON";
// examplar attribute lpm_ram_dq_component NOOPT TRUE
 
`else
 
//
// Generic single-port synchronous RAM model
//
 
//
// Generic RAM's registers and wires
//
reg [dw-1:0] mem [(1<<aw)-1:0]; // RAM content
reg [dw-1:0] do_reg; // RAM data output register
 
//
// Data output drivers
//
assign do = (oe) ? do_reg : {dw{1'b0}};
 
//
// RAM read and write
//
always @(posedge clk)
if (ce && !we)
do_reg <= #1 mem[addr];
else if (ce && we)
mem[addr] <= #1 di;
 
`endif // !OR1200_ALTERA_LPM
`endif // !OR1200_XILINX_RAMB4_S16
`endif // !OR1200_VIRTUALSILICON_SSP
`endif // !OR1200_VIRAGE_SSP
`endif // !OR1200_AVANT_ATP
`endif // !OR1200_ARTISAN_SSP
 
endmodule
/tags/rel_26/or1200/rtl/verilog/or1200_immu_top.v
0,0 → 1,416
//////////////////////////////////////////////////////////////////////
//// ////
//// OR1200's Instruction MMU top level ////
//// ////
//// This file is part of the OpenRISC 1200 project ////
//// http://www.opencores.org/cores/or1k/ ////
//// ////
//// Description ////
//// Instantiation of all IMMU blocks. ////
//// ////
//// To Do: ////
//// - cache inhibit ////
//// ////
//// Author(s): ////
//// - Damjan Lampret, lampret@opencores.org ////
//// ////
//////////////////////////////////////////////////////////////////////
//// ////
//// Copyright (C) 2000 Authors and OPENCORES.ORG ////
//// ////
//// This source file may be used and distributed without ////
//// restriction provided that this copyright statement is not ////
//// removed from the file and that any derivative work contains ////
//// the original copyright notice and the associated disclaimer. ////
//// ////
//// This source file is free software; you can redistribute it ////
//// and/or modify it under the terms of the GNU Lesser General ////
//// Public License as published by the Free Software Foundation; ////
//// either version 2.1 of the License, or (at your option) any ////
//// later version. ////
//// ////
//// This source is distributed in the hope that it will be ////
//// useful, but WITHOUT ANY WARRANTY; without even the implied ////
//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR ////
//// PURPOSE. See the GNU Lesser General Public License for more ////
//// details. ////
//// ////
//// You should have received a copy of the GNU Lesser General ////
//// Public License along with this source; if not, download it ////
//// from http://www.opencores.org/lgpl.shtml ////
//// ////
//////////////////////////////////////////////////////////////////////
//
// CVS Revision History
//
// $Log: not supported by cvs2svn $
// Revision 1.12.4.1 2003/07/08 15:36:37 lampret
// Added embedded memory QMEM.
//
// Revision 1.12 2003/06/06 02:54:47 lampret
// When OR1200_NO_IMMU and OR1200_NO_IC are not both defined or undefined at the same time, results in a IC bug. Fixed.
//
// Revision 1.11 2002/10/17 20:04:40 lampret
// Added BIST scan. Special VS RAMs need to be used to implement BIST.
//
// Revision 1.10 2002/09/16 03:08:56 lampret
// Disabled cache inhibit atttribute.
//
// Revision 1.9 2002/08/18 19:54:17 lampret
// Added store buffer.
//
// Revision 1.8 2002/08/14 06:23:50 lampret
// Disabled ITLB translation when 1) doing access to ITLB SPRs or 2) crossing page. This modification was tested only with parts of IMMU test - remaining test cases needs to be run.
//
// Revision 1.7 2002/08/12 05:31:30 lampret
// Delayed external access at page crossing.
//
// Revision 1.6 2002/03/29 15:16:56 lampret
// Some of the warnings fixed.
//
// Revision 1.5 2002/02/11 04:33:17 lampret
// Speed optimizations (removed duplicate _cyc_ and _stb_). Fixed D/IMMU cache-inhibit attr.
//
// Revision 1.4 2002/02/01 19:56:54 lampret
// Fixed combinational loops.
//
// Revision 1.3 2002/01/28 01:16:00 lampret
// Changed 'void' nop-ops instead of insn[0] to use insn[16]. Debug unit stalls the tick timer. Prepared new flag generation for add and and insns. Blocked DC/IC while they are turned off. Fixed I/D MMU SPRs layout except WAYs. TODO: smart IC invalidate, l.j 2 and TLB ways.
//
// Revision 1.2 2002/01/14 06:18:22 lampret
// Fixed mem2reg bug in FAST implementation. Updated debug unit to work with new genpc/if.
//
// Revision 1.1 2002/01/03 08:16:15 lampret
// New prefixes for RTL files, prefixed module names. Updated cache controllers and MMUs.
//
// Revision 1.6 2001/10/21 17:57:16 lampret
// Removed params from generic_XX.v. Added translate_off/on in sprs.v and id.v. Removed spr_addr from dc.v and ic.v. Fixed CR+LF.
//
// Revision 1.5 2001/10/14 13:12:09 lampret
// MP3 version.
//
// Revision 1.1.1.1 2001/10/06 10:18:36 igorm
// no message
//
// Revision 1.1 2001/08/17 08:03:35 lampret
// *** empty log message ***
//
// Revision 1.2 2001/07/22 03:31:53 lampret
// Fixed RAM's oen bug. Cache bypass under development.
//
// Revision 1.1 2001/07/20 00:46:03 lampret
// Development version of RTL. Libraries are missing.
//
//
 
// synopsys translate_off
`include "timescale.v"
// synopsys translate_on
`include "or1200_defines.v"
 
//
// Insn MMU
//
 
module or1200_immu_top(
// Rst and clk
clk, rst,
 
// CPU i/f
ic_en, immu_en, supv, icpu_adr_i, icpu_cycstb_i,
icpu_adr_o, icpu_tag_o, icpu_rty_o, icpu_err_o,
 
// SPR access
spr_cs, spr_write, spr_addr, spr_dat_i, spr_dat_o,
 
`ifdef OR1200_BIST
// RAM BIST
mbist_si_i, mbist_so_o, mbist_ctrl_i,
`endif
 
// QMEM i/f
qmemimmu_rty_i, qmemimmu_err_i, qmemimmu_tag_i, qmemimmu_adr_o, qmemimmu_cycstb_o, qmemimmu_ci_o
);
 
parameter dw = `OR1200_OPERAND_WIDTH;
parameter aw = `OR1200_OPERAND_WIDTH;
 
//
// I/O
//
 
//
// Clock and reset
//
input clk;
input rst;
 
//
// CPU I/F
//
input ic_en;
input immu_en;
input supv;
input [aw-1:0] icpu_adr_i;
input icpu_cycstb_i;
output [aw-1:0] icpu_adr_o;
output [3:0] icpu_tag_o;
output icpu_rty_o;
output icpu_err_o;
 
//
// SPR access
//
input spr_cs;
input spr_write;
input [aw-1:0] spr_addr;
input [31:0] spr_dat_i;
output [31:0] spr_dat_o;
 
`ifdef OR1200_BIST
//
// RAM BIST
//
input mbist_si_i;
input [`OR1200_MBIST_CTRL_WIDTH - 1:0] mbist_ctrl_i;
output mbist_so_o;
`endif
 
//
// IC I/F
//
input qmemimmu_rty_i;
input qmemimmu_err_i;
input [3:0] qmemimmu_tag_i;
output [aw-1:0] qmemimmu_adr_o;
output qmemimmu_cycstb_o;
output qmemimmu_ci_o;
 
//
// Internal wires and regs
//
wire itlb_spr_access;
wire [31:`OR1200_IMMU_PS] itlb_ppn;
wire itlb_hit;
wire itlb_uxe;
wire itlb_sxe;
wire [31:0] itlb_dat_o;
wire itlb_en;
wire itlb_ci;
wire itlb_done;
wire fault;
wire miss;
wire page_cross;
reg [31:0] icpu_adr_o;
reg [31:`OR1200_IMMU_PS] icpu_vpn_r;
`ifdef OR1200_NO_IMMU
`else
reg itlb_en_r;
reg dis_spr_access;
`endif
 
//
// Implemented bits inside match and translate registers
//
// itlbwYmrX: vpn 31-10 v 0
// itlbwYtrX: ppn 31-10 uxe 7 sxe 6
//
// itlb memory width:
// 19 bits for ppn
// 13 bits for vpn
// 1 bit for valid
// 2 bits for protection
// 1 bit for cache inhibit
 
//
// icpu_adr_o
//
`ifdef OR1200_REGISTERED_OUTPUTS
always @(posedge rst or posedge clk)
if (rst)
icpu_adr_o <= #1 32'h0000_0100;
else
icpu_adr_o <= #1 icpu_adr_i;
`else
Unsupported !!!
`endif
 
//
// Page cross
//
// Asserted when CPU address crosses page boundary. Most of the time it is zero.
//
assign page_cross = icpu_adr_i[31:`OR1200_IMMU_PS] != icpu_vpn_r;
 
//
// Register icpu_adr_i's VPN for use when IMMU is not enabled but PPN is expected to come
// one clock cycle after offset part.
//
always @(posedge clk or posedge rst)
if (rst)
icpu_vpn_r <= #1 {31-`OR1200_IMMU_PS{1'b0}};
else
icpu_vpn_r <= #1 icpu_adr_i[31:`OR1200_IMMU_PS];
 
`ifdef OR1200_NO_IMMU
 
//
// Put all outputs in inactive state
//
assign spr_dat_o = 32'h00000000;
assign qmemimmu_adr_o = icpu_adr_i;
assign icpu_tag_o = qmemimmu_tag_i;
assign qmemimmu_cycstb_o = icpu_cycstb_i & ~page_cross;
assign icpu_rty_o = qmemimmu_rty_i;
assign icpu_err_o = qmemimmu_err_i;
assign qmemimmu_ci_o = `OR1200_IMMU_CI;
`ifdef OR1200_BIST
assign mbist_so_o = mbist_si_i;
`endif
`else
 
//
// ITLB SPR access
//
// 1200 - 12FF itlbmr w0
// 1200 - 123F itlbmr w0 [63:0]
//
// 1300 - 13FF itlbtr w0
// 1300 - 133F itlbtr w0 [63:0]
//
assign itlb_spr_access = spr_cs & ~dis_spr_access;
 
//
// Disable ITLB SPR access
//
// This flop is used to mask ITLB miss/fault exception
// during first clock cycle of accessing ITLB SPR. In
// subsequent clock cycles it is assumed that ITLB SPR
// access was accomplished and that normal instruction fetching
// can proceed.
//
// spr_cs sets dis_spr_access and icpu_rty_o clears it.
//
always @(posedge clk or posedge rst)
if (rst)
dis_spr_access <= #1 1'b0;
else if (!icpu_rty_o)
dis_spr_access <= #1 1'b0;
else if (spr_cs)
dis_spr_access <= #1 1'b1;
 
//
// Tags:
//
// OR1200_DTAG_TE - TLB miss Exception
// OR1200_DTAG_PE - Page fault Exception
//
assign icpu_tag_o = miss ? `OR1200_DTAG_TE : fault ? `OR1200_DTAG_PE : qmemimmu_tag_i;
 
//
// icpu_rty_o
//
// assign icpu_rty_o = !icpu_err_o & qmemimmu_rty_i;
assign icpu_rty_o = qmemimmu_rty_i | itlb_spr_access & immu_en;
 
//
// icpu_err_o
//
assign icpu_err_o = miss | fault | qmemimmu_err_i;
 
//
// Assert itlb_en_r after one clock cycle and when there is no
// ITLB SPR access
//
always @(posedge clk or posedge rst)
if (rst)
itlb_en_r <= #1 1'b0;
else
itlb_en_r <= #1 itlb_en & ~itlb_spr_access;
 
//
// ITLB lookup successful
//
assign itlb_done = itlb_en_r & ~page_cross;
 
//
// Cut transfer if something goes wrong with translation. If IC is disabled,
// use delayed signals.
//
// assign qmemimmu_cycstb_o = (!ic_en & immu_en) ? ~(miss | fault) & icpu_cycstb_i & ~page_cross : (miss | fault) ? 1'b0 : icpu_cycstb_i & ~page_cross; // DL
assign qmemimmu_cycstb_o = immu_en ? ~(miss | fault) & icpu_cycstb_i & ~page_cross & itlb_done : icpu_cycstb_i & ~page_cross;
 
//
// Cache Inhibit
//
// Cache inhibit is not really needed for instruction memory subsystem.
// If we would do it, we would do it like this.
// assign qmemimmu_ci_o = immu_en ? itlb_done & itlb_ci : `OR1200_IMMU_CI;
// However this causes a async combinational loop so we stick to
// no cache inhibit.
assign qmemimmu_ci_o = `OR1200_IMMU_CI;
 
 
//
// Physical address is either translated virtual address or
// simply equal when IMMU is disabled
//
assign qmemimmu_adr_o = itlb_done ? {itlb_ppn, icpu_adr_i[`OR1200_IMMU_PS-1:0]} : {icpu_vpn_r, icpu_adr_i[`OR1200_IMMU_PS-1:0]}; // DL: immu_en
 
//
// Output to SPRS unit
//
assign spr_dat_o = spr_cs ? itlb_dat_o : 32'h00000000;
 
//
// Page fault exception logic
//
assign fault = itlb_done &
( (!supv & !itlb_uxe) // Execute in user mode not enabled
|| (supv & !itlb_sxe)); // Execute in supv mode not enabled
 
//
// TLB Miss exception logic
//
assign miss = itlb_done & !itlb_hit;
 
//
// ITLB Enable
//
assign itlb_en = immu_en & icpu_cycstb_i;
 
//
// Instantiation of ITLB
//
or1200_immu_tlb or1200_immu_tlb(
// Rst and clk
.clk(clk),
.rst(rst),
 
// I/F for translation
.tlb_en(itlb_en),
.vaddr(icpu_adr_i),
.hit(itlb_hit),
.ppn(itlb_ppn),
.uxe(itlb_uxe),
.sxe(itlb_sxe),
.ci(itlb_ci),
 
`ifdef OR1200_BIST
// RAM BIST
.mbist_si_i(mbist_si_i),
.mbist_so_o(mbist_so_o),
.mbist_ctrl_i(mbist_ctrl_i),
`endif
 
// SPR access
.spr_cs(itlb_spr_access),
.spr_write(spr_write),
.spr_addr(spr_addr),
.spr_dat_i(spr_dat_i),
.spr_dat_o(itlb_dat_o)
);
 
`endif
 
endmodule
/tags/rel_26/or1200/rtl/verilog/or1200_spram_64x24.v
0,0 → 1,362
//////////////////////////////////////////////////////////////////////
//// ////
//// Generic Single-Port Synchronous RAM ////
//// ////
//// This file is part of memory library available from ////
//// http://www.opencores.org/cvsweb.shtml/generic_memories/ ////
//// ////
//// Description ////
//// This block is a wrapper with common single-port ////
//// synchronous memory interface for different ////
//// types of ASIC and FPGA RAMs. Beside universal memory ////
//// interface it also provides behavioral model of generic ////
//// single-port synchronous RAM. ////
//// It should be used in all OPENCORES designs that want to be ////
//// portable accross different target technologies and ////
//// independent of target memory. ////
//// ////
//// Supported ASIC RAMs are: ////
//// - Artisan Single-Port Sync RAM ////
//// - Avant! Two-Port Sync RAM (*) ////
//// - Virage Single-Port Sync RAM ////
//// - Virtual Silicon Single-Port Sync RAM ////
//// ////
//// Supported FPGA RAMs are: ////
//// - Xilinx Virtex RAMB4_S16 ////
//// - Altera LPM ////
//// ////
//// To Do: ////
//// - xilinx rams need external tri-state logic ////
//// - fix avant! two-port ram ////
//// - add additional RAMs ////
//// ////
//// Author(s): ////
//// - Damjan Lampret, lampret@opencores.org ////
//// ////
//////////////////////////////////////////////////////////////////////
//// ////
//// Copyright (C) 2000 Authors and OPENCORES.ORG ////
//// ////
//// This source file may be used and distributed without ////
//// restriction provided that this copyright statement is not ////
//// removed from the file and that any derivative work contains ////
//// the original copyright notice and the associated disclaimer. ////
//// ////
//// This source file is free software; you can redistribute it ////
//// and/or modify it under the terms of the GNU Lesser General ////
//// Public License as published by the Free Software Foundation; ////
//// either version 2.1 of the License, or (at your option) any ////
//// later version. ////
//// ////
//// This source is distributed in the hope that it will be ////
//// useful, but WITHOUT ANY WARRANTY; without even the implied ////
//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR ////
//// PURPOSE. See the GNU Lesser General Public License for more ////
//// details. ////
//// ////
//// You should have received a copy of the GNU Lesser General ////
//// Public License along with this source; if not, download it ////
//// from http://www.opencores.org/lgpl.shtml ////
//// ////
//////////////////////////////////////////////////////////////////////
//
// CVS Revision History
//
// $Log: not supported by cvs2svn $
// Revision 1.3 2003/04/07 01:19:07 lampret
// Added Altera LPM RAMs. Changed generic RAM output when OE inactive.
//
// Revision 1.2 2002/10/17 20:04:41 lampret
// Added BIST scan. Special VS RAMs need to be used to implement BIST.
//
// Revision 1.1 2002/01/03 08:16:15 lampret
// New prefixes for RTL files, prefixed module names. Updated cache controllers and MMUs.
//
// Revision 1.8 2001/11/02 18:57:14 lampret
// Modified virtual silicon instantiations.
//
// Revision 1.7 2001/10/22 19:39:56 lampret
// Fixed parameters in generic sprams.
//
// Revision 1.6 2001/10/21 17:57:16 lampret
// Removed params from generic_XX.v. Added translate_off/on in sprs.v and id.v. Removed spr_addr from dc.v and ic.v. Fixed CR+LF.
//
// Revision 1.5 2001/10/14 13:12:09 lampret
// MP3 version.
//
// Revision 1.1.1.1 2001/10/06 10:18:36 igorm
// no message
//
// Revision 1.1 2001/08/09 13:39:33 lampret
// Major clean-up.
//
// Revision 1.2 2001/07/30 05:38:02 lampret
// Adding empty directories required by HDL coding guidelines
//
//
 
// synopsys translate_off
`include "timescale.v"
// synopsys translate_on
`include "or1200_defines.v"
 
module or1200_spram_64x24(
`ifdef OR1200_BIST
// RAM BIST
mbist_si_i, mbist_so_o, mbist_ctrl_i,
`endif
// Generic synchronous single-port RAM interface
clk, rst, ce, we, oe, addr, di, do
);
 
//
// Default address and data buses width
//
parameter aw = 6;
parameter dw = 24;
 
`ifdef OR1200_BIST
//
// RAM BIST
//
input mbist_si_i;
input [`OR1200_MBIST_CTRL_WIDTH - 1:0] mbist_ctrl_i;
output mbist_so_o;
`endif
 
//
// Generic synchronous single-port RAM interface
//
input clk; // Clock
input rst; // Reset
input ce; // Chip enable input
input we; // Write enable input
input oe; // Output enable input
input [aw-1:0] addr; // address bus inputs
input [dw-1:0] di; // input data bus
output [dw-1:0] do; // output data bus
 
//
// Internal wires and registers
//
wire [7:0] unconnected;
 
`ifdef OR1200_ARTISAN_SSP
`else
`ifdef OR1200_VIRTUALSILICON_SSP
`else
`ifdef OR1200_BIST
assign mbist_so_o = mbist_si_i;
`endif
`endif
`endif
 
`ifdef OR1200_ARTISAN_SSP
 
//
// Instantiation of ASIC memory:
//
// Artisan Synchronous Single-Port RAM (ra1sh)
//
`ifdef UNUSED
art_hssp_64x24 #(dw, 1<<aw, aw) artisan_ssp(
`else
`ifdef OR1200_BIST
art_hssp_64x24_bist artisan_ssp(
`else
art_hssp_64x24 artisan_ssp(
`endif
`endif
`ifdef OR1200_BIST
// RAM BIST
.mbist_si_i(mbist_si_i),
.mbist_so_o(mbist_so_o),
.mbist_ctrl_i(mbist_ctrl_i),
`endif
.CLK(clk),
.CEN(~ce),
.WEN(~we),
.A(addr),
.D(di),
.OEN(~oe),
.Q(do)
);
 
`else
 
`ifdef OR1200_AVANT_ATP
 
//
// Instantiation of ASIC memory:
//
// Avant! Asynchronous Two-Port RAM
//
avant_atp avant_atp(
.web(~we),
.reb(),
.oeb(~oe),
.rcsb(),
.wcsb(),
.ra(addr),
.wa(addr),
.di(di),
.do(do)
);
 
`else
 
`ifdef OR1200_VIRAGE_SSP
 
//
// Instantiation of ASIC memory:
//
// Virage Synchronous 1-port R/W RAM
//
virage_ssp virage_ssp(
.clk(clk),
.adr(addr),
.d(di),
.we(we),
.oe(oe),
.me(ce),
.q(do)
);
 
`else
 
`ifdef OR1200_VIRTUALSILICON_SSP
 
//
// Instantiation of ASIC memory:
//
// Virtual Silicon Single-Port Synchronous SRAM
//
`ifdef UNUSED
vs_hdsp_64x24 #(1<<aw, aw-1, dw-1) vs_ssp(
`else
`ifdef OR1200_BIST
vs_hdsp_64x24_bist vs_ssp(
`else
vs_hdsp_64x24 vs_ssp(
`endif
`endif
`ifdef OR1200_BIST
// RAM BIST
.mbist_si_i(mbist_si_i),
.mbist_so_o(mbist_so_o),
.mbist_ctrl_i(mbist_ctrl_i),
`endif
.CK(clk),
.ADR(addr),
.DI(di),
.WEN(~we),
.CEN(~ce),
.OEN(~oe),
.DOUT(do)
);
 
`else
 
`ifdef OR1200_XILINX_RAMB4
 
//
// Instantiation of FPGA memory:
//
// Virtex/Spartan2
//
 
//
// Block 0
//
RAMB4_S16 ramb4_s16_0(
.CLK(clk),
.RST(rst),
.ADDR({2'b00, addr}),
.DI(di[15:0]),
.EN(ce),
.WE(we),
.DO(do[15:0])
);
 
//
// Block 1
//
RAMB4_S16 ramb4_s16_1(
.CLK(clk),
.RST(rst),
.ADDR({2'b00, addr}),
.DI({unconnected, di[23:16]}),
.EN(ce),
.WE(we),
.DO({unconnected, do[23:16]})
);
 
`else
 
`ifdef OR1200_ALTERA_LPM
 
//
// Instantiation of FPGA memory:
//
// Altera LPM
//
// Added By Jamil Khatib
//
 
wire wr;
 
assign wr = ce & we;
 
initial $display("Using Altera LPM.");
 
lpm_ram_dq lpm_ram_dq_component (
.address(addr),
.inclock(clk),
.outclock(clk),
.data(di),
.we(wr),
.q(do)
);
 
defparam lpm_ram_dq_component.lpm_width = dw,
lpm_ram_dq_component.lpm_widthad = aw,
lpm_ram_dq_component.lpm_indata = "REGISTERED",
lpm_ram_dq_component.lpm_address_control = "REGISTERED",
lpm_ram_dq_component.lpm_outdata = "UNREGISTERED",
lpm_ram_dq_component.lpm_hint = "USE_EAB=ON";
// examplar attribute lpm_ram_dq_component NOOPT TRUE
 
`else
 
//
// Generic single-port synchronous RAM model
//
 
//
// Generic RAM's registers and wires
//
reg [dw-1:0] mem [(1<<aw)-1:0]; // RAM content
reg [dw-1:0] do_reg; // RAM data output register
 
//
// Data output drivers
//
assign do = (oe) ? do_reg : {dw{1'b0}};
 
//
// RAM read and write
//
always @(posedge clk)
if (ce && !we)
do_reg <= #1 mem[addr];
else if (ce && we)
mem[addr] <= #1 di;
 
`endif // !OR1200_ALTERA_LPM
`endif // !OR1200_XILINX_RAMB4_S16
`endif // !OR1200_VIRTUALSILICON_SSP
`endif // !OR1200_VIRAGE_SSP
`endif // !OR1200_AVANT_ATP
`endif // !OR1200_ARTISAN_SSP
 
endmodule
/tags/rel_26/or1200/rtl/verilog/or1200_spram_2048x32.v
0,0 → 1,543
//////////////////////////////////////////////////////////////////////
//// ////
//// Generic Single-Port Synchronous RAM ////
//// ////
//// This file is part of memory library available from ////
//// http://www.opencores.org/cvsweb.shtml/generic_memories/ ////
//// ////
//// Description ////
//// This block is a wrapper with common single-port ////
//// synchronous memory interface for different ////
//// types of ASIC and FPGA RAMs. Beside universal memory ////
//// interface it also provides behavioral model of generic ////
//// single-port synchronous RAM. ////
//// It should be used in all OPENCORES designs that want to be ////
//// portable accross different target technologies and ////
//// independent of target memory. ////
//// ////
//// Supported ASIC RAMs are: ////
//// - Artisan Single-Port Sync RAM ////
//// - Avant! Two-Port Sync RAM (*) ////
//// - Virage Single-Port Sync RAM ////
//// - Virtual Silicon Single-Port Sync RAM ////
//// ////
//// Supported FPGA RAMs are: ////
//// - Xilinx Virtex RAMB4_S16 ////
//// - Altera LPM ////
//// ////
//// To Do: ////
//// - xilinx rams need external tri-state logic ////
//// - fix avant! two-port ram ////
//// - add additional RAMs ////
//// ////
//// Author(s): ////
//// - Damjan Lampret, lampret@opencores.org ////
//// ////
//////////////////////////////////////////////////////////////////////
//// ////
//// Copyright (C) 2000 Authors and OPENCORES.ORG ////
//// ////
//// This source file may be used and distributed without ////
//// restriction provided that this copyright statement is not ////
//// removed from the file and that any derivative work contains ////
//// the original copyright notice and the associated disclaimer. ////
//// ////
//// This source file is free software; you can redistribute it ////
//// and/or modify it under the terms of the GNU Lesser General ////
//// Public License as published by the Free Software Foundation; ////
//// either version 2.1 of the License, or (at your option) any ////
//// later version. ////
//// ////
//// This source is distributed in the hope that it will be ////
//// useful, but WITHOUT ANY WARRANTY; without even the implied ////
//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR ////
//// PURPOSE. See the GNU Lesser General Public License for more ////
//// details. ////
//// ////
//// You should have received a copy of the GNU Lesser General ////
//// Public License along with this source; if not, download it ////
//// from http://www.opencores.org/lgpl.shtml ////
//// ////
//////////////////////////////////////////////////////////////////////
//
// CVS Revision History
//
// $Log: not supported by cvs2svn $
// Revision 1.4 2003/04/07 01:19:07 lampret
// Added Altera LPM RAMs. Changed generic RAM output when OE inactive.
//
// Revision 1.3 2002/10/28 15:03:50 mohor
// Signal scanb_sen renamed to scanb_en.
//
// Revision 1.2 2002/10/17 20:04:40 lampret
// Added BIST scan. Special VS RAMs need to be used to implement BIST.
//
// Revision 1.1 2002/01/03 08:16:15 lampret
// New prefixes for RTL files, prefixed module names. Updated cache controllers and MMUs.
//
// Revision 1.8 2001/11/02 18:57:14 lampret
// Modified virtual silicon instantiations.
//
// Revision 1.7 2001/10/21 17:57:16 lampret
// Removed params from generic_XX.v. Added translate_off/on in sprs.v and id.v. Removed spr_addr from dc.v and ic.v. Fixed CR+LF.
//
// Revision 1.6 2001/10/14 13:12:09 lampret
// MP3 version.
//
// Revision 1.1.1.1 2001/10/06 10:18:36 igorm
// no message
//
// Revision 1.1 2001/08/09 13:39:33 lampret
// Major clean-up.
//
// Revision 1.2 2001/07/30 05:38:02 lampret
// Adding empty directories required by HDL coding guidelines
//
//
 
// synopsys translate_off
`include "timescale.v"
// synopsys translate_on
`include "or1200_defines.v"
 
module or1200_spram_2048x32(
`ifdef OR1200_BIST
// RAM BIST
mbist_si_i, mbist_so_o, mbist_ctrl_i,
`endif
// Generic synchronous single-port RAM interface
clk, rst, ce, we, oe, addr, di, do
);
 
//
// Default address and data buses width
//
parameter aw = 11;
parameter dw = 32;
 
`ifdef OR1200_BIST
//
// RAM BIST
//
input mbist_si_i;
input [`OR1200_MBIST_CTRL_WIDTH - 1:0] mbist_ctrl_i;
output mbist_so_o;
`endif
 
//
// Generic synchronous single-port RAM interface
//
input clk; // Clock
input rst; // Reset
input ce; // Chip enable input
input we; // Write enable input
input oe; // Output enable input
input [aw-1:0] addr; // address bus inputs
input [dw-1:0] di; // input data bus
output [dw-1:0] do; // output data bus
 
//
// Internal wires and registers
//
 
`ifdef OR1200_ARTISAN_SSP
`else
`ifdef OR1200_VIRTUALSILICON_SSP
`else
`ifdef OR1200_BIST
assign mbist_so_o = mbist_si_i;
`endif
`endif
`endif
 
`ifdef OR1200_ARTISAN_SSP
 
//
// Instantiation of ASIC memory:
//
// Artisan Synchronous Single-Port RAM (ra1sh)
//
`ifdef UNUSED
art_hdsp_2048x32 #(dw, 1<<aw, aw) artisan_ssp(
`else
`ifdef OR1200_BIST
art_hssp_2048x32_bist artisan_ssp(
`else
art_hssp_2048x32 artisan_ssp(
`endif
`endif
`ifdef OR1200_BIST
// RAM BIST
.mbist_si_i(mbist_si_i),
.mbist_so_o(mbist_so_o),
.mbist_ctrl_i(mbist_ctrl_i),
`endif
.CLK(clk),
.CEN(~ce),
.WEN(~we),
.A(addr),
.D(di),
.OEN(~oe),
.Q(do)
);
 
`else
 
`ifdef OR1200_AVANT_ATP
 
//
// Instantiation of ASIC memory:
//
// Avant! Asynchronous Two-Port RAM
//
avant_atp avant_atp(
.web(~we),
.reb(),
.oeb(~oe),
.rcsb(),
.wcsb(),
.ra(addr),
.wa(addr),
.di(di),
.do(do)
);
 
`else
 
`ifdef OR1200_VIRAGE_SSP
 
//
// Instantiation of ASIC memory:
//
// Virage Synchronous 1-port R/W RAM
//
virage_ssp virage_ssp(
.clk(clk),
.adr(addr),
.d(di),
.we(we),
.oe(oe),
.me(ce),
.q(do)
);
 
`else
 
`ifdef OR1200_VIRTUALSILICON_SSP
 
//
// Instantiation of ASIC memory:
//
// Virtual Silicon Single-Port Synchronous SRAM
//
`ifdef UNUSED
vs_hdsp_2048x32 #(1<<aw, aw-1, dw-1) vs_ssp(
`else
`ifdef OR1200_BIST
vs_hdsp_2048x32_bist vs_ssp(
`else
vs_hdsp_2048x32 vs_ssp(
`endif
`endif
`ifdef OR1200_BIST
// RAM BIST
.mbist_si_i(mbist_si_i),
.mbist_so_o(mbist_so_o),
.mbist_ctrl_i(mbist_ctrl_i),
`endif
.CK(clk),
.ADR(addr),
.DI(di),
.WEN(~we),
.CEN(~ce),
.OEN(~oe),
.DOUT(do)
);
 
`else
 
`ifdef OR1200_XILINX_RAMB4
 
//
// Instantiation of FPGA memory:
//
// Virtex/Spartan2
//
 
//
// Block 0
//
RAMB4_S2 ramb4_s2_0(
.CLK(clk),
.RST(rst),
.ADDR(addr),
.DI(di[1:0]),
.EN(ce),
.WE(we),
.DO(do[1:0])
);
 
//
// Block 1
//
RAMB4_S2 ramb4_s2_1(
.CLK(clk),
.RST(rst),
.ADDR(addr),
.DI(di[3:2]),
.EN(ce),
.WE(we),
.DO(do[3:2])
);
 
//
// Block 2
//
RAMB4_S2 ramb4_s2_2(
.CLK(clk),
.RST(rst),
.ADDR(addr),
.DI(di[5:4]),
.EN(ce),
.WE(we),
.DO(do[5:4])
);
 
//
// Block 3
//
RAMB4_S2 ramb4_s2_3(
.CLK(clk),
.RST(rst),
.ADDR(addr),
.DI(di[7:6]),
.EN(ce),
.WE(we),
.DO(do[7:6])
);
 
//
// Block 4
//
RAMB4_S2 ramb4_s2_4(
.CLK(clk),
.RST(rst),
.ADDR(addr),
.DI(di[9:8]),
.EN(ce),
.WE(we),
.DO(do[9:8])
);
 
//
// Block 5
//
RAMB4_S2 ramb4_s2_5(
.CLK(clk),
.RST(rst),
.ADDR(addr),
.DI(di[11:10]),
.EN(ce),
.WE(we),
.DO(do[11:10])
);
 
//
// Block 6
//
RAMB4_S2 ramb4_s2_6(
.CLK(clk),
.RST(rst),
.ADDR(addr),
.DI(di[13:12]),
.EN(ce),
.WE(we),
.DO(do[13:12])
);
 
//
// Block 7
//
RAMB4_S2 ramb4_s2_7(
.CLK(clk),
.RST(rst),
.ADDR(addr),
.DI(di[15:14]),
.EN(ce),
.WE(we),
.DO(do[15:14])
);
 
//
// Block 8
//
RAMB4_S2 ramb4_s2_8(
.CLK(clk),
.RST(rst),
.ADDR(addr),
.DI(di[17:16]),
.EN(ce),
.WE(we),
.DO(do[17:16])
);
 
//
// Block 9
//
RAMB4_S2 ramb4_s2_9(
.CLK(clk),
.RST(rst),
.ADDR(addr),
.DI(di[19:18]),
.EN(ce),
.WE(we),
.DO(do[19:18])
);
 
//
// Block 10
//
RAMB4_S2 ramb4_s2_10(
.CLK(clk),
.RST(rst),
.ADDR(addr),
.DI(di[21:20]),
.EN(ce),
.WE(we),
.DO(do[21:20])
);
 
//
// Block 11
//
RAMB4_S2 ramb4_s2_11(
.CLK(clk),
.RST(rst),
.ADDR(addr),
.DI(di[23:22]),
.EN(ce),
.WE(we),
.DO(do[23:22])
);
 
//
// Block 12
//
RAMB4_S2 ramb4_s2_12(
.CLK(clk),
.RST(rst),
.ADDR(addr),
.DI(di[25:24]),
.EN(ce),
.WE(we),
.DO(do[25:24])
);
 
//
// Block 13
//
RAMB4_S2 ramb4_s2_13(
.CLK(clk),
.RST(rst),
.ADDR(addr),
.DI(di[27:26]),
.EN(ce),
.WE(we),
.DO(do[27:26])
);
 
//
// Block 14
//
RAMB4_S2 ramb4_s2_14(
.CLK(clk),
.RST(rst),
.ADDR(addr),
.DI(di[29:28]),
.EN(ce),
.WE(we),
.DO(do[29:28])
);
 
//
// Block 15
//
RAMB4_S2 ramb4_s2_15(
.CLK(clk),
.RST(rst),
.ADDR(addr),
.DI(di[31:30]),
.EN(ce),
.WE(we),
.DO(do[31:30])
);
 
`else
 
`ifdef OR1200_ALTERA_LPM
 
//
// Instantiation of FPGA memory:
//
// Altera LPM
//
// Added By Jamil Khatib
//
 
wire wr;
 
assign wr = ce & we;
 
initial $display("Using Altera LPM.");
 
lpm_ram_dq lpm_ram_dq_component (
.address(addr),
.inclock(clk),
.outclock(clk),
.data(di),
.we(wr),
.q(do)
);
 
defparam lpm_ram_dq_component.lpm_width = dw,
lpm_ram_dq_component.lpm_widthad = aw,
lpm_ram_dq_component.lpm_indata = "REGISTERED",
lpm_ram_dq_component.lpm_address_control = "REGISTERED",
lpm_ram_dq_component.lpm_outdata = "UNREGISTERED",
lpm_ram_dq_component.lpm_hint = "USE_EAB=ON";
// examplar attribute lpm_ram_dq_component NOOPT TRUE
 
`else
 
//
// Generic single-port synchronous RAM model
//
 
//
// Generic RAM's registers and wires
//
reg [dw-1:0] mem [(1<<aw)-1:0]; // RAM content
reg [dw-1:0] do_reg; // RAM data output register
 
//
// Data output drivers
//
assign do = (oe) ? do_reg : {dw{1'b0}};
 
//
// RAM read and write
//
always @(posedge clk)
if (ce && !we)
do_reg <= #1 mem[addr];
else if (ce && we)
mem[addr] <= #1 di;
 
`endif // !OR1200_ALTERA_LPM
`endif // !OR1200_XILINX_RAMB4_S16
`endif // !OR1200_VIRTUALSILICON_SSP
`endif // !OR1200_VIRAGE_SSP
`endif // !OR1200_AVANT_ATP
`endif // !OR1200_ARTISAN_SSP
 
endmodule
/tags/rel_26/or1200/rtl/verilog/or1200_immu_tlb.v
0,0 → 1,290
//////////////////////////////////////////////////////////////////////
//// ////
//// OR1200's Instruction TLB ////
//// ////
//// This file is part of the OpenRISC 1200 project ////
//// http://www.opencores.org/cores/or1k/ ////
//// ////
//// Description ////
//// Instantiation of ITLB. ////
//// ////
//// To Do: ////
//// - make it smaller and faster ////
//// ////
//// Author(s): ////
//// - Damjan Lampret, lampret@opencores.org ////
//// ////
//////////////////////////////////////////////////////////////////////
//// ////
//// Copyright (C) 2000 Authors and OPENCORES.ORG ////
//// ////
//// This source file may be used and distributed without ////
//// restriction provided that this copyright statement is not ////
//// removed from the file and that any derivative work contains ////
//// the original copyright notice and the associated disclaimer. ////
//// ////
//// This source file is free software; you can redistribute it ////
//// and/or modify it under the terms of the GNU Lesser General ////
//// Public License as published by the Free Software Foundation; ////
//// either version 2.1 of the License, or (at your option) any ////
//// later version. ////
//// ////
//// This source is distributed in the hope that it will be ////
//// useful, but WITHOUT ANY WARRANTY; without even the implied ////
//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR ////
//// PURPOSE. See the GNU Lesser General Public License for more ////
//// details. ////
//// ////
//// You should have received a copy of the GNU Lesser General ////
//// Public License along with this source; if not, download it ////
//// from http://www.opencores.org/lgpl.shtml ////
//// ////
//////////////////////////////////////////////////////////////////////
//
// CVS Revision History
//
// $Log: not supported by cvs2svn $
// Revision 1.6 2002/10/28 16:34:32 mohor
// RAMs wrong connected to the BIST scan chain.
//
// Revision 1.5 2002/10/17 20:04:40 lampret
// Added BIST scan. Special VS RAMs need to be used to implement BIST.
//
// Revision 1.4 2002/08/14 06:23:50 lampret
// Disabled ITLB translation when 1) doing access to ITLB SPRs or 2) crossing page. This modification was tested only with parts of IMMU test - remaining test cases needs to be run.
//
// Revision 1.3 2002/02/11 04:33:17 lampret
// Speed optimizations (removed duplicate _cyc_ and _stb_). Fixed D/IMMU cache-inhibit attr.
//
// Revision 1.2 2002/01/28 01:16:00 lampret
// Changed 'void' nop-ops instead of insn[0] to use insn[16]. Debug unit stalls the tick timer. Prepared new flag generation for add and and insns. Blocked DC/IC while they are turned off. Fixed I/D MMU SPRs layout except WAYs. TODO: smart IC invalidate, l.j 2 and TLB ways.
//
// Revision 1.1 2002/01/03 08:16:15 lampret
// New prefixes for RTL files, prefixed module names. Updated cache controllers and MMUs.
//
// Revision 1.8 2001/10/21 17:57:16 lampret
// Removed params from generic_XX.v. Added translate_off/on in sprs.v and id.v. Removed spr_addr from dc.v and ic.v. Fixed CR+LF.
//
// Revision 1.7 2001/10/14 13:12:09 lampret
// MP3 version.
//
// Revision 1.1.1.1 2001/10/06 10:18:36 igorm
// no message
//
//
 
// synopsys translate_off
`include "timescale.v"
// synopsys translate_on
`include "or1200_defines.v"
 
//
// Insn TLB
//
 
module or1200_immu_tlb(
// Rst and clk
clk, rst,
 
// I/F for translation
tlb_en, vaddr, hit, ppn, uxe, sxe, ci,
 
`ifdef OR1200_BIST
// RAM BIST
mbist_si_i, mbist_so_o, mbist_ctrl_i,
`endif
 
// SPR access
spr_cs, spr_write, spr_addr, spr_dat_i, spr_dat_o
);
 
parameter dw = `OR1200_OPERAND_WIDTH;
parameter aw = `OR1200_OPERAND_WIDTH;
 
//
// I/O
//
 
//
// Clock and reset
//
input clk;
input rst;
 
//
// I/F for translation
//
input tlb_en;
input [aw-1:0] vaddr;
output hit;
output [31:`OR1200_IMMU_PS] ppn;
output uxe;
output sxe;
output ci;
 
`ifdef OR1200_BIST
//
// RAM BIST
//
input mbist_si_i;
input [`OR1200_MBIST_CTRL_WIDTH - 1:0] mbist_ctrl_i;
output mbist_so_o;
`endif
 
//
// SPR access
//
input spr_cs;
input spr_write;
input [31:0] spr_addr;
input [31:0] spr_dat_i;
output [31:0] spr_dat_o;
 
//
// Internal wires and regs
//
wire [`OR1200_ITLB_TAG] vpn;
wire v;
wire [`OR1200_ITLB_INDXW-1:0] tlb_index;
wire tlb_mr_en;
wire tlb_mr_we;
wire [`OR1200_ITLBMRW-1:0] tlb_mr_ram_in;
wire [`OR1200_ITLBMRW-1:0] tlb_mr_ram_out;
wire tlb_tr_en;
wire tlb_tr_we;
wire [`OR1200_ITLBTRW-1:0] tlb_tr_ram_in;
wire [`OR1200_ITLBTRW-1:0] tlb_tr_ram_out;
 
// BIST
`ifdef OR1200_BIST
wire itlb_mr_ram_si;
wire itlb_mr_ram_so;
wire itlb_tr_ram_si;
wire itlb_tr_ram_so;
`endif
 
//
// Implemented bits inside match and translate registers
//
// itlbwYmrX: vpn 31-19 v 0
// itlbwYtrX: ppn 31-13 uxe 7 sxe 6
//
// itlb memory width:
// 19 bits for ppn
// 13 bits for vpn
// 1 bit for valid
// 2 bits for protection
// 1 bit for cache inhibit
 
//
// Enable for Match registers
//
assign tlb_mr_en = tlb_en | (spr_cs & !spr_addr[`OR1200_ITLB_TM_ADDR]);
 
//
// Write enable for Match registers
//
assign tlb_mr_we = spr_cs & spr_write & !spr_addr[`OR1200_ITLB_TM_ADDR];
 
//
// Enable for Translate registers
//
assign tlb_tr_en = tlb_en | (spr_cs & spr_addr[`OR1200_ITLB_TM_ADDR]);
 
//
// Write enable for Translate registers
//
assign tlb_tr_we = spr_cs & spr_write & spr_addr[`OR1200_ITLB_TM_ADDR];
 
//
// Output to SPRS unit
//
assign spr_dat_o = (!spr_write & !spr_addr[`OR1200_ITLB_TM_ADDR]) ?
{vpn, tlb_index & {`OR1200_ITLB_INDXW{v}}, {`OR1200_ITLB_TAGW-7{1'b0}}, 1'b0, 5'b00000, v} :
(!spr_write & spr_addr[`OR1200_ITLB_TM_ADDR]) ?
{ppn, {`OR1200_IMMU_PS-8{1'b0}}, uxe, sxe, {4{1'b0}}, ci, 1'b0} :
32'h00000000;
 
//
// Assign outputs from Match registers
//
assign {vpn, v} = tlb_mr_ram_out;
 
//
// Assign to Match registers inputs
//
assign tlb_mr_ram_in = {spr_dat_i[`OR1200_ITLB_TAG], spr_dat_i[`OR1200_ITLBMR_V_BITS]};
 
//
// Assign outputs from Translate registers
//
assign {ppn, uxe, sxe, ci} = tlb_tr_ram_out;
 
//
// Assign to Translate registers inputs
//
assign tlb_tr_ram_in = {spr_dat_i[31:`OR1200_IMMU_PS],
spr_dat_i[`OR1200_ITLBTR_UXE_BITS],
spr_dat_i[`OR1200_ITLBTR_SXE_BITS],
spr_dat_i[`OR1200_ITLBTR_CI_BITS]};
 
//
// Generate hit
//
assign hit = (vpn == vaddr[`OR1200_ITLB_TAG]) & v;
 
//
// TLB index is normally vaddr[18:13]. If it is SPR access then index is
// spr_addr[5:0].
//
assign tlb_index = spr_cs ? spr_addr[`OR1200_ITLB_INDXW-1:0] : vaddr[`OR1200_ITLB_INDX];
 
 
`ifdef OR1200_BIST
assign itlb_mr_ram_si = mbist_si_i;
assign itlb_tr_ram_si = itlb_mr_ram_so;
assign mbist_so_o = itlb_tr_ram_so;
`endif
 
 
//
// Instantiation of ITLB Match Registers
//
or1200_spram_64x14 itlb_mr_ram(
.clk(clk),
.rst(rst),
`ifdef OR1200_BIST
// RAM BIST
.mbist_si_i(itlb_mr_ram_si),
.mbist_so_o(itlb_mr_ram_so),
.mbist_ctrl_i(mbist_ctrl_i),
`endif
.ce(tlb_mr_en),
.we(tlb_mr_we),
.oe(1'b1),
.addr(tlb_index),
.di(tlb_mr_ram_in),
.do(tlb_mr_ram_out)
);
 
//
// Instantiation of ITLB Translate Registers
//
or1200_spram_64x22 itlb_tr_ram(
.clk(clk),
.rst(rst),
`ifdef OR1200_BIST
// RAM BIST
.mbist_si_i(itlb_tr_ram_si),
.mbist_so_o(itlb_tr_ram_so),
.mbist_ctrl_i(mbist_ctrl_i),
`endif
.ce(tlb_tr_en),
.we(tlb_tr_we),
.oe(1'b1),
.addr(tlb_index),
.di(tlb_tr_ram_in),
.do(tlb_tr_ram_out)
);
 
endmodule
/tags/rel_26/or1200/rtl/verilog/or1200_dc_top.v
0,0 → 1,339
//////////////////////////////////////////////////////////////////////
//// ////
//// OR1200's Data Cache top level ////
//// ////
//// This file is part of the OpenRISC 1200 project ////
//// http://www.opencores.org/cores/or1k/ ////
//// ////
//// Description ////
//// Instantiation of all DC blocks. ////
//// ////
//// To Do: ////
//// - make it smaller and faster ////
//// ////
//// Author(s): ////
//// - Damjan Lampret, lampret@opencores.org ////
//// ////
//////////////////////////////////////////////////////////////////////
//// ////
//// Copyright (C) 2000 Authors and OPENCORES.ORG ////
//// ////
//// This source file may be used and distributed without ////
//// restriction provided that this copyright statement is not ////
//// removed from the file and that any derivative work contains ////
//// the original copyright notice and the associated disclaimer. ////
//// ////
//// This source file is free software; you can redistribute it ////
//// and/or modify it under the terms of the GNU Lesser General ////
//// Public License as published by the Free Software Foundation; ////
//// either version 2.1 of the License, or (at your option) any ////
//// later version. ////
//// ////
//// This source is distributed in the hope that it will be ////
//// useful, but WITHOUT ANY WARRANTY; without even the implied ////
//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR ////
//// PURPOSE. See the GNU Lesser General Public License for more ////
//// details. ////
//// ////
//// You should have received a copy of the GNU Lesser General ////
//// Public License along with this source; if not, download it ////
//// from http://www.opencores.org/lgpl.shtml ////
//// ////
//////////////////////////////////////////////////////////////////////
//
// CVS Revision History
//
// $Log: not supported by cvs2svn $
// Revision 1.6.4.1 2003/07/08 15:36:37 lampret
// Added embedded memory QMEM.
//
// Revision 1.6 2002/10/17 20:04:40 lampret
// Added BIST scan. Special VS RAMs need to be used to implement BIST.
//
// Revision 1.5 2002/08/18 19:54:47 lampret
// Added store buffer.
//
// Revision 1.4 2002/02/11 04:33:17 lampret
// Speed optimizations (removed duplicate _cyc_ and _stb_). Fixed D/IMMU cache-inhibit attr.
//
// Revision 1.3 2002/01/28 01:16:00 lampret
// Changed 'void' nop-ops instead of insn[0] to use insn[16]. Debug unit stalls the tick timer. Prepared new flag generation for add and and insns. Blocked DC/IC while they are turned off. Fixed I/D MMU SPRs layout except WAYs. TODO: smart IC invalidate, l.j 2 and TLB ways.
//
// Revision 1.2 2002/01/14 06:18:22 lampret
// Fixed mem2reg bug in FAST implementation. Updated debug unit to work with new genpc/if.
//
// Revision 1.1 2002/01/03 08:16:15 lampret
// New prefixes for RTL files, prefixed module names. Updated cache controllers and MMUs.
//
// Revision 1.10 2001/10/21 17:57:16 lampret
// Removed params from generic_XX.v. Added translate_off/on in sprs.v and id.v. Removed spr_addr from dc.v and ic.v. Fixed CR+LF.
//
// Revision 1.9 2001/10/14 13:12:09 lampret
// MP3 version.
//
// Revision 1.1.1.1 2001/10/06 10:18:35 igorm
// no message
//
// Revision 1.4 2001/08/13 03:36:20 lampret
// Added cfg regs. Moved all defines into one defines.v file. More cleanup.
//
// Revision 1.3 2001/08/09 13:39:33 lampret
// Major clean-up.
//
// Revision 1.2 2001/07/22 03:31:53 lampret
// Fixed RAM's oen bug. Cache bypass under development.
//
// Revision 1.1 2001/07/20 00:46:03 lampret
// Development version of RTL. Libraries are missing.
//
//
 
// synopsys translate_off
`include "timescale.v"
// synopsys translate_on
`include "or1200_defines.v"
 
//
// Data cache
//
module or1200_dc_top(
// Rst, clk and clock control
clk, rst,
 
// External i/f
dcsb_dat_o, dcsb_adr_o, dcsb_cyc_o, dcsb_stb_o, dcsb_we_o, dcsb_sel_o, dcsb_cab_o,
dcsb_dat_i, dcsb_ack_i, dcsb_err_i,
 
// Internal i/f
dc_en,
dcqmem_adr_i, dcqmem_cycstb_i, dcqmem_ci_i,
dcqmem_we_i, dcqmem_sel_i, dcqmem_tag_i, dcqmem_dat_i,
dcqmem_dat_o, dcqmem_ack_o, dcqmem_rty_o, dcqmem_err_o, dcqmem_tag_o,
 
`ifdef OR1200_BIST
// RAM BIST
mbist_si_i, mbist_so_o, mbist_ctrl_i,
`endif
 
// SPRs
spr_cs, spr_write, spr_dat_i
);
 
parameter dw = `OR1200_OPERAND_WIDTH;
 
//
// I/O
//
 
//
// Clock and reset
//
input clk;
input rst;
 
//
// External I/F
//
output [dw-1:0] dcsb_dat_o;
output [31:0] dcsb_adr_o;
output dcsb_cyc_o;
output dcsb_stb_o;
output dcsb_we_o;
output [3:0] dcsb_sel_o;
output dcsb_cab_o;
input [dw-1:0] dcsb_dat_i;
input dcsb_ack_i;
input dcsb_err_i;
 
//
// Internal I/F
//
input dc_en;
input [31:0] dcqmem_adr_i;
input dcqmem_cycstb_i;
input dcqmem_ci_i;
input dcqmem_we_i;
input [3:0] dcqmem_sel_i;
input [3:0] dcqmem_tag_i;
input [dw-1:0] dcqmem_dat_i;
output [dw-1:0] dcqmem_dat_o;
output dcqmem_ack_o;
output dcqmem_rty_o;
output dcqmem_err_o;
output [3:0] dcqmem_tag_o;
 
`ifdef OR1200_BIST
//
// RAM BIST
//
input mbist_si_i;
input [`OR1200_MBIST_CTRL_WIDTH - 1:0] mbist_ctrl_i;
output mbist_so_o;
`endif
 
//
// SPR access
//
input spr_cs;
input spr_write;
input [31:0] spr_dat_i;
 
//
// Internal wires and regs
//
wire tag_v;
wire [`OR1200_DCTAG_W-2:0] tag;
wire [dw-1:0] to_dcram;
wire [dw-1:0] from_dcram;
wire [31:0] saved_addr;
wire [3:0] dcram_we;
wire dctag_we;
wire [31:0] dc_addr;
wire dcfsm_biu_read;
wire dcfsm_biu_write;
reg tagcomp_miss;
wire [`OR1200_DCINDXH:`OR1200_DCLS] dctag_addr;
wire dctag_en;
wire dctag_v;
wire dc_inv;
wire dcfsm_first_hit_ack;
wire dcfsm_first_miss_ack;
wire dcfsm_first_miss_err;
wire dcfsm_burst;
wire dcfsm_tag_we;
`ifdef OR1200_BIST
//
// RAM BIST
//
wire mbist_ram_so;
wire mbist_tag_so;
wire mbist_ram_si = mbist_si_i;
wire mbist_tag_si = mbist_ram_so;
assign mbist_so_o = mbist_tag_so;
`endif
 
//
// Simple assignments
//
assign dcsb_adr_o = dc_addr;
assign dc_inv = spr_cs & spr_write;
assign dctag_we = dcfsm_tag_we | dc_inv;
assign dctag_addr = dc_inv ? spr_dat_i[`OR1200_DCINDXH:`OR1200_DCLS] : dc_addr[`OR1200_DCINDXH:`OR1200_DCLS];
assign dctag_en = dc_inv | dc_en;
assign dctag_v = ~dc_inv;
 
//
// Data to BIU is from DCRAM when DC is enabled or from LSU when
// DC is disabled
//
assign dcsb_dat_o = dcqmem_dat_i;
 
//
// Bypases of the DC when DC is disabled
//
assign dcsb_cyc_o = (dc_en) ? dcfsm_biu_read | dcfsm_biu_write : dcqmem_cycstb_i;
assign dcsb_stb_o = (dc_en) ? dcfsm_biu_read | dcfsm_biu_write : dcqmem_cycstb_i;
assign dcsb_we_o = (dc_en) ? dcfsm_biu_write : dcqmem_we_i;
assign dcsb_sel_o = (dc_en & dcfsm_biu_read & !dcfsm_biu_write & !dcqmem_ci_i) ? 4'b1111 : dcqmem_sel_i;
assign dcsb_cab_o = (dc_en) ? dcfsm_burst : 1'b0;
assign dcqmem_rty_o = ~dcqmem_ack_o;
assign dcqmem_tag_o = dcqmem_err_o ? `OR1200_DTAG_BE : dcqmem_tag_i;
 
//
// DC/LSU normal and error termination
//
assign dcqmem_ack_o = dc_en ? dcfsm_first_hit_ack | dcfsm_first_miss_ack : dcsb_ack_i;
assign dcqmem_err_o = dc_en ? dcfsm_first_miss_err : dcsb_err_i;
 
//
// Select between claddr generated by DC FSM and addr[3:2] generated by LSU
//
//assign dc_addr = (dcfsm_biu_read | dcfsm_biu_write) ? saved_addr : dcqmem_adr_i;
 
//
// Select between input data generated by LSU or by BIU
//
assign to_dcram = (dcfsm_biu_read) ? dcsb_dat_i : dcqmem_dat_i;
 
//
// Select between data generated by DCRAM or passed by BIU
//
assign dcqmem_dat_o = dcfsm_first_miss_ack | !dc_en ? dcsb_dat_i : from_dcram;
 
//
// Tag comparison
//
always @(tag or saved_addr or tag_v) begin
if ((tag != saved_addr[31:`OR1200_DCTAGL]) || !tag_v)
tagcomp_miss = 1'b1;
else
tagcomp_miss = 1'b0;
end
 
//
// Instantiation of DC Finite State Machine
//
or1200_dc_fsm or1200_dc_fsm(
.clk(clk),
.rst(rst),
.dc_en(dc_en),
.dcqmem_cycstb_i(dcqmem_cycstb_i),
.dcqmem_ci_i(dcqmem_ci_i),
.dcqmem_we_i(dcqmem_we_i),
.dcqmem_sel_i(dcqmem_sel_i),
.tagcomp_miss(tagcomp_miss),
.biudata_valid(dcsb_ack_i),
.biudata_error(dcsb_err_i),
.start_addr(dcqmem_adr_i),
.saved_addr(saved_addr),
.dcram_we(dcram_we),
.biu_read(dcfsm_biu_read),
.biu_write(dcfsm_biu_write),
.first_hit_ack(dcfsm_first_hit_ack),
.first_miss_ack(dcfsm_first_miss_ack),
.first_miss_err(dcfsm_first_miss_err),
.burst(dcfsm_burst),
.tag_we(dcfsm_tag_we),
.dc_addr(dc_addr)
);
 
//
// Instantiation of DC main memory
//
or1200_dc_ram or1200_dc_ram(
.clk(clk),
.rst(rst),
`ifdef OR1200_BIST
// RAM BIST
.mbist_si_i(mbist_ram_si),
.mbist_so_o(mbist_ram_so),
.mbist_ctrl_i(mbist_ctrl_i),
`endif
.addr(dc_addr[`OR1200_DCINDXH:2]),
.en(dc_en),
.we(dcram_we),
.datain(to_dcram),
.dataout(from_dcram)
);
 
//
// Instantiation of DC TAG memory
//
or1200_dc_tag or1200_dc_tag(
.clk(clk),
.rst(rst),
`ifdef OR1200_BIST
// RAM BIST
.mbist_si_i(mbist_tag_si),
.mbist_so_o(mbist_tag_so),
.mbist_ctrl_i(mbist_ctrl_i),
`endif
.addr(dctag_addr),
.en(dctag_en),
.we(dctag_we),
.datain({dc_addr[31:`OR1200_DCTAGL], dctag_v}),
.tag_v(tag_v),
.tag(tag)
);
 
endmodule
/tags/rel_26/or1200/rtl/verilog/or1200_spram_256x21.v
0,0 → 1,368
//////////////////////////////////////////////////////////////////////
//// ////
//// Generic Single-Port Synchronous RAM ////
//// ////
//// This file is part of memory library available from ////
//// http://www.opencores.org/cvsweb.shtml/generic_memories/ ////
//// ////
//// Description ////
//// This block is a wrapper with common single-port ////
//// synchronous memory interface for different ////
//// types of ASIC and FPGA RAMs. Beside universal memory ////
//// interface it also provides behavioral model of generic ////
//// single-port synchronous RAM. ////
//// It should be used in all OPENCORES designs that want to be ////
//// portable accross different target technologies and ////
//// independent of target memory. ////
//// ////
//// Supported ASIC RAMs are: ////
//// - Artisan Single-Port Sync RAM ////
//// - Avant! Two-Port Sync RAM (*) ////
//// - Virage Single-Port Sync RAM ////
//// - Virtual Silicon Single-Port Sync RAM ////
//// ////
//// Supported FPGA RAMs are: ////
//// - Xilinx Virtex RAMB4_S16 ////
//// - Altera LPM ////
//// ////
//// To Do: ////
//// - xilinx rams need external tri-state logic ////
//// - fix avant! two-port ram ////
//// - add additional RAMs ////
//// ////
//// Author(s): ////
//// - Damjan Lampret, lampret@opencores.org ////
//// ////
//////////////////////////////////////////////////////////////////////
//// ////
//// Copyright (C) 2000 Authors and OPENCORES.ORG ////
//// ////
//// This source file may be used and distributed without ////
//// restriction provided that this copyright statement is not ////
//// removed from the file and that any derivative work contains ////
//// the original copyright notice and the associated disclaimer. ////
//// ////
//// This source file is free software; you can redistribute it ////
//// and/or modify it under the terms of the GNU Lesser General ////
//// Public License as published by the Free Software Foundation; ////
//// either version 2.1 of the License, or (at your option) any ////
//// later version. ////
//// ////
//// This source is distributed in the hope that it will be ////
//// useful, but WITHOUT ANY WARRANTY; without even the implied ////
//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR ////
//// PURPOSE. See the GNU Lesser General Public License for more ////
//// details. ////
//// ////
//// You should have received a copy of the GNU Lesser General ////
//// Public License along with this source; if not, download it ////
//// from http://www.opencores.org/lgpl.shtml ////
//// ////
//////////////////////////////////////////////////////////////////////
//
// CVS Revision History
//
// $Log: not supported by cvs2svn $
// Revision 1.3.4.1 2003/07/08 15:36:37 lampret
// Added embedded memory QMEM.
//
// Revision 1.3 2003/04/07 01:19:07 lampret
// Added Altera LPM RAMs. Changed generic RAM output when OE inactive.
//
// Revision 1.2 2002/10/17 20:04:40 lampret
// Added BIST scan. Special VS RAMs need to be used to implement BIST.
//
// Revision 1.1 2002/01/03 08:16:15 lampret
// New prefixes for RTL files, prefixed module names. Updated cache controllers and MMUs.
//
// Revision 1.10 2001/11/27 21:24:04 lampret
// Changed instantiation name of VS RAMs.
//
// Revision 1.9 2001/11/27 19:45:04 lampret
// Fixed VS RAM instantiation - again.
//
// Revision 1.8 2001/11/23 21:42:31 simons
// Program counter divided to PPC and NPC.
//
// Revision 1.6 2001/10/21 17:57:16 lampret
// Removed params from generic_XX.v. Added translate_off/on in sprs.v and id.v. Removed spr_addr from dc.v and ic.v. Fixed CR+LF.
//
// Revision 1.5 2001/10/14 13:12:09 lampret
// MP3 version.
//
// Revision 1.1.1.1 2001/10/06 10:18:36 igorm
// no message
//
// Revision 1.1 2001/08/09 13:39:33 lampret
// Major clean-up.
//
// Revision 1.2 2001/07/30 05:38:02 lampret
// Adding empty directories required by HDL coding guidelines
//
//
 
// synopsys translate_off
`include "timescale.v"
// synopsys translate_on
`include "or1200_defines.v"
 
module or1200_spram_256x21(
`ifdef OR1200_BIST
// RAM BIST
mbist_si_i, mbist_so_o, mbist_ctrl_i,
`endif
// Generic synchronous single-port RAM interface
clk, rst, ce, we, oe, addr, di, do
);
 
//
// Default address and data buses width
//
parameter aw = 8;
parameter dw = 21;
 
`ifdef OR1200_BIST
//
// RAM BIST
//
input mbist_si_i;
input [`OR1200_MBIST_CTRL_WIDTH - 1:0] mbist_ctrl_i;
output mbist_so_o;
`endif
 
//
// Generic synchronous single-port RAM interface
//
input clk; // Clock
input rst; // Reset
input ce; // Chip enable input
input we; // Write enable input
input oe; // Output enable input
input [aw-1:0] addr; // address bus inputs
input [dw-1:0] di; // input data bus
output [dw-1:0] do; // output data bus
 
//
// Internal wires and registers
//
wire [10:0] unconnected;
 
`ifdef OR1200_ARTISAN_SSP
`else
`ifdef OR1200_VIRTUALSILICON_SSP
`else
`ifdef OR1200_BIST
assign mbist_so_o = mbist_si_i;
`endif
`endif
`endif
 
`ifdef OR1200_ARTISAN_SSP
 
//
// Instantiation of ASIC memory:
//
// Artisan Synchronous Single-Port RAM (ra1sh)
//
`ifdef UNUSED
art_hssp_256x21 #(dw, 1<<aw, aw) artisan_ssp(
`else
`ifdef OR1200_BIST
art_hssp_256x21_bist artisan_ssp(
`else
art_hssp_256x21 artisan_ssp(
`endif
`endif
`ifdef OR1200_BIST
// RAM BIST
.mbist_si_i(mbist_si_i),
.mbist_so_o(mbist_so_o),
.mbist_ctrl_i(mbist_ctrl_i),
`endif
.CLK(clk),
.CEN(~ce),
.WEN(~we),
.A(addr),
.D(di),
.OEN(~oe),
.Q(do)
);
 
`else
 
`ifdef OR1200_AVANT_ATP
 
//
// Instantiation of ASIC memory:
//
// Avant! Asynchronous Two-Port RAM
//
avant_atp avant_atp(
.web(~we),
.reb(),
.oeb(~oe),
.rcsb(),
.wcsb(),
.ra(addr),
.wa(addr),
.di(di),
.do(do)
);
 
`else
 
`ifdef OR1200_VIRAGE_SSP
 
//
// Instantiation of ASIC memory:
//
// Virage Synchronous 1-port R/W RAM
//
virage_ssp virage_ssp(
.clk(clk),
.adr(addr),
.d(di),
.we(we),
.oe(oe),
.me(ce),
.q(do)
);
 
`else
 
`ifdef OR1200_VIRTUALSILICON_SSP
 
//
// Instantiation of ASIC memory:
//
// Virtual Silicon Single-Port Synchronous SRAM
//
`ifdef UNUSED
vs_hdsp_256x21 #(1<<aw, aw-1, dw-1) vs_ssp(
`else
`ifdef OR1200_BIST
vs_hdsp_256x21_bist vs_ssp(
`else
vs_hdsp_256x21 vs_ssp(
`endif
`endif
`ifdef OR1200_BIST
// RAM BIST
.mbist_si_i(mbist_si_i),
.mbist_so_o(mbist_so_o),
.mbist_ctrl_i(mbist_ctrl_i),
`endif
.CK(clk),
.ADR(addr),
.DI(di),
.WEN(~we),
.CEN(~ce),
.OEN(~oe),
.DOUT(do)
);
 
`else
 
`ifdef OR1200_XILINX_RAMB4
 
//
// Instantiation of FPGA memory:
//
// Virtex/Spartan2
//
 
//
// Block 0
//
RAMB4_S16 ramb4_s16_0(
.CLK(clk),
.RST(rst),
.ADDR(addr),
.DI(di[15:0]),
.EN(ce),
.WE(we),
.DO(do[15:0])
);
 
//
// Block 1
//
RAMB4_S16 ramb4_s16_1(
.CLK(clk),
.RST(rst),
.ADDR(addr),
.DI({11'b00000000000, di[20:16]}),
.EN(ce),
.WE(we),
.DO({unconnected, do[20:16]})
);
 
`else
 
`ifdef OR1200_ALTERA_LPM
 
//
// Instantiation of FPGA memory:
//
// Altera LPM
//
// Added By Jamil Khatib
//
 
wire wr;
 
assign wr = ce & we;
 
initial $display("Using Altera LPM.");
 
lpm_ram_dq lpm_ram_dq_component (
.address(addr),
.inclock(clk),
.outclock(clk),
.data(di),
.we(wr),
.q(do)
);
 
defparam lpm_ram_dq_component.lpm_width = dw,
lpm_ram_dq_component.lpm_widthad = aw,
lpm_ram_dq_component.lpm_indata = "REGISTERED",
lpm_ram_dq_component.lpm_address_control = "REGISTERED",
lpm_ram_dq_component.lpm_outdata = "UNREGISTERED",
lpm_ram_dq_component.lpm_hint = "USE_EAB=ON";
// examplar attribute lpm_ram_dq_component NOOPT TRUE
 
`else
 
//
// Generic single-port synchronous RAM model
//
 
//
// Generic RAM's registers and wires
//
reg [dw-1:0] mem [(1<<aw)-1:0]; // RAM content
reg [dw-1:0] do_reg; // RAM data output register
 
//
// Data output drivers
//
assign do = (oe) ? do_reg : {dw{1'b0}};
 
//
// RAM read and write
//
always @(posedge clk)
if (ce && !we)
do_reg <= #1 mem[addr];
else if (ce && we)
mem[addr] <= #1 di;
 
`endif // !OR1200_ALTERA_LPM
`endif // !OR1200_XILINX_RAMB4_S16
`endif // !OR1200_VIRTUALSILICON_SSP
`endif // !OR1200_VIRAGE_SSP
`endif // !OR1200_AVANT_ATP
`endif // !OR1200_ARTISAN_SSP
 
endmodule
/tags/rel_26/or1200/rtl/verilog/or1200_spram_2048x8.v
0,0 → 1,384
//////////////////////////////////////////////////////////////////////
//// ////
//// Generic Single-Port Synchronous RAM ////
//// ////
//// This file is part of memory library available from ////
//// http://www.opencores.org/cvsweb.shtml/generic_memories/ ////
//// ////
//// Description ////
//// This block is a wrapper with common single-port ////
//// synchronous memory interface for different ////
//// types of ASIC and FPGA RAMs. Beside universal memory ////
//// interface it also provides behavioral model of generic ////
//// single-port synchronous RAM. ////
//// It should be used in all OPENCORES designs that want to be ////
//// portable accross different target technologies and ////
//// independent of target memory. ////
//// ////
//// Supported ASIC RAMs are: ////
//// - Artisan Single-Port Sync RAM ////
//// - Avant! Two-Port Sync RAM (*) ////
//// - Virage Single-Port Sync RAM ////
//// - Virtual Silicon Single-Port Sync RAM ////
//// ////
//// Supported FPGA RAMs are: ////
//// - Xilinx Virtex RAMB4_S16 ////
//// - Altera LPM ////
//// ////
//// To Do: ////
//// - xilinx rams need external tri-state logic ////
//// - fix avant! two-port ram ////
//// - add additional RAMs ////
//// ////
//// Author(s): ////
//// - Damjan Lampret, lampret@opencores.org ////
//// ////
//////////////////////////////////////////////////////////////////////
//// ////
//// Copyright (C) 2000 Authors and OPENCORES.ORG ////
//// ////
//// This source file may be used and distributed without ////
//// restriction provided that this copyright statement is not ////
//// removed from the file and that any derivative work contains ////
//// the original copyright notice and the associated disclaimer. ////
//// ////
//// This source file is free software; you can redistribute it ////
//// and/or modify it under the terms of the GNU Lesser General ////
//// Public License as published by the Free Software Foundation; ////
//// either version 2.1 of the License, or (at your option) any ////
//// later version. ////
//// ////
//// This source is distributed in the hope that it will be ////
//// useful, but WITHOUT ANY WARRANTY; without even the implied ////
//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR ////
//// PURPOSE. See the GNU Lesser General Public License for more ////
//// details. ////
//// ////
//// You should have received a copy of the GNU Lesser General ////
//// Public License along with this source; if not, download it ////
//// from http://www.opencores.org/lgpl.shtml ////
//// ////
//////////////////////////////////////////////////////////////////////
//
// CVS Revision History
//
// $Log: not supported by cvs2svn $
// Revision 1.3 2003/04/07 01:19:07 lampret
// Added Altera LPM RAMs. Changed generic RAM output when OE inactive.
//
// Revision 1.2 2002/10/17 20:04:40 lampret
// Added BIST scan. Special VS RAMs need to be used to implement BIST.
//
// Revision 1.1 2002/01/03 08:16:15 lampret
// New prefixes for RTL files, prefixed module names. Updated cache controllers and MMUs.
//
// Revision 1.8 2001/11/02 18:57:14 lampret
// Modified virtual silicon instantiations.
//
// Revision 1.7 2001/10/21 17:57:16 lampret
// Removed params from generic_XX.v. Added translate_off/on in sprs.v and id.v. Removed spr_addr from dc.v and ic.v. Fixed CR+LF.
//
// Revision 1.6 2001/10/14 13:12:09 lampret
// MP3 version.
//
// Revision 1.1.1.1 2001/10/06 10:18:36 igorm
// no message
//
// Revision 1.1 2001/08/09 13:39:33 lampret
// Major clean-up.
//
// Revision 1.2 2001/07/30 05:38:02 lampret
// Adding empty directories required by HDL coding guidelines
//
//
 
// synopsys translate_off
`include "timescale.v"
// synopsys translate_on
`include "or1200_defines.v"
 
module or1200_spram_2048x8(
`ifdef OR1200_BIST
// RAM BIST
mbist_si_i, mbist_so_o, mbist_ctrl_i,
`endif
// Generic synchronous single-port RAM interface
clk, rst, ce, we, oe, addr, di, do
);
 
//
// Default address and data buses width
//
parameter aw = 11;
parameter dw = 8;
 
`ifdef OR1200_BIST
//
// RAM BIST
//
input mbist_si_i;
input [`OR1200_MBIST_CTRL_WIDTH - 1:0] mbist_ctrl_i;
output mbist_so_o;
`endif
 
//
// Generic synchronous single-port RAM interface
//
input clk; // Clock
input rst; // Reset
input ce; // Chip enable input
input we; // Write enable input
input oe; // Output enable input
input [aw-1:0] addr; // address bus inputs
input [dw-1:0] di; // input data bus
output [dw-1:0] do; // output data bus
 
//
// Internal wires and registers
//
 
`ifdef OR1200_ARTISAN_SSP
`else
`ifdef OR1200_VIRTUALSILICON_SSP
`else
`ifdef OR1200_BIST
assign mbist_so_o = mbist_si_i;
`endif
`endif
`endif
 
`ifdef OR1200_ARTISAN_SSP
 
//
// Instantiation of ASIC memory:
//
// Artisan Synchronous Single-Port RAM (ra1sh)
//
`ifdef UNUSED
art_hssp_2048x8 #(dw, 1<<aw, aw) artisan_ssp(
`else
`ifdef OR1200_BIST
art_hssp_2048x8_bist artisan_ssp(
`else
art_hssp_2048x8 artisan_ssp(
`endif
`endif
`ifdef OR1200_BIST
// RAM BIST
.mbist_si_i(mbist_si_i),
.mbist_so_o(mbist_so_o),
.mbist_ctrl_i(mbist_ctrl_i),
`endif
.CLK(clk),
.CEN(~ce),
.WEN(~we),
.A(addr),
.D(di),
.OEN(~oe),
.Q(do)
);
 
`else
 
`ifdef OR1200_AVANT_ATP
 
//
// Instantiation of ASIC memory:
//
// Avant! Asynchronous Two-Port RAM
//
avant_atp avant_atp(
.web(~we),
.reb(),
.oeb(~oe),
.rcsb(),
.wcsb(),
.ra(addr),
.wa(addr),
.di(di),
.do(do)
);
 
`else
 
`ifdef OR1200_VIRAGE_SSP
 
//
// Instantiation of ASIC memory:
//
// Virage Synchronous 1-port R/W RAM
//
virage_ssp virage_ssp(
.clk(clk),
.adr(addr),
.d(di),
.we(we),
.oe(oe),
.me(ce),
.q(do)
);
 
`else
 
`ifdef OR1200_VIRTUALSILICON_SSP
 
//
// Instantiation of ASIC memory:
//
// Virtual Silicon Single-Port Synchronous SRAM
//
`ifdef UNUSED
vs_hdsp_2048x8 #(1<<aw, aw-1, dw-1) vs_ssp(
`else
`ifdef OR1200_BIST
vs_hdsp_2048x8_bist vs_ssp(
`else
vs_hdsp_2048x8 vs_ssp(
`endif
`endif
`ifdef OR1200_BIST
// RAM BIST
.mbist_si_i(mbist_si_i),
.mbist_so_o(mbist_so_o),
.mbist_ctrl_i(mbist_ctrl_i),
`endif
.CK(clk),
.ADR(addr),
.DI(di),
.WEN(~we),
.CEN(~ce),
.OEN(~oe),
.DOUT(do)
);
 
`else
 
`ifdef OR1200_XILINX_RAMB4
 
//
// Instantiation of FPGA memory:
//
// Virtex/Spartan2
//
 
//
// Block 0
//
RAMB4_S2 ramb4_s2_0(
.CLK(clk),
.RST(rst),
.ADDR(addr),
.DI(di[1:0]),
.EN(ce),
.WE(we),
.DO(do[1:0])
);
 
//
// Block 1
//
RAMB4_S2 ramb4_s2_1(
.CLK(clk),
.RST(rst),
.ADDR(addr),
.DI(di[3:2]),
.EN(ce),
.WE(we),
.DO(do[3:2])
);
 
//
// Block 2
//
RAMB4_S2 ramb4_s2_2(
.CLK(clk),
.RST(rst),
.ADDR(addr),
.DI(di[5:4]),
.EN(ce),
.WE(we),
.DO(do[5:4])
);
 
//
// Block 3
//
RAMB4_S2 ramb4_s2_3(
.CLK(clk),
.RST(rst),
.ADDR(addr),
.DI(di[7:6]),
.EN(ce),
.WE(we),
.DO(do[7:6])
);
 
`else
 
`ifdef OR1200_ALTERA_LPM
 
//
// Instantiation of FPGA memory:
//
// Altera LPM
//
// Added By Jamil Khatib
//
 
wire wr;
 
assign wr = ce & we;
 
initial $display("Using Altera LPM.");
 
lpm_ram_dq lpm_ram_dq_component (
.address(addr),
.inclock(clk),
.outclock(clk),
.data(di),
.we(wr),
.q(do)
);
 
defparam lpm_ram_dq_component.lpm_width = dw,
lpm_ram_dq_component.lpm_widthad = aw,
lpm_ram_dq_component.lpm_indata = "REGISTERED",
lpm_ram_dq_component.lpm_address_control = "REGISTERED",
lpm_ram_dq_component.lpm_outdata = "UNREGISTERED",
lpm_ram_dq_component.lpm_hint = "USE_EAB=ON";
// examplar attribute lpm_ram_dq_component NOOPT TRUE
 
`else
 
//
// Generic single-port synchronous RAM model
//
 
//
// Generic RAM's registers and wires
//
reg [dw-1:0] mem [(1<<aw)-1:0]; // RAM content
reg [dw-1:0] do_reg; // RAM data output register
 
//
// Data output drivers
//
assign do = (oe) ? do_reg : {dw{1'b0}};
 
//
// RAM read and write
//
always @(posedge clk)
if (ce && !we)
do_reg <= #1 mem[addr];
else if (ce && we)
mem[addr] <= #1 di;
 
`endif // !OR1200_ALTERA_LPM
`endif // !OR1200_XILINX_RAMB4_S16
`endif // !OR1200_VIRTUALSILICON_SSP
`endif // !OR1200_VIRAGE_SSP
`endif // !OR1200_AVANT_ATP
`endif // !OR1200_ARTISAN_SSP
 
endmodule
/tags/rel_26/or1200/rtl/verilog/or1200_dmmu_top.v
0,0 → 1,346
//////////////////////////////////////////////////////////////////////
//// ////
//// OR1200's Data MMU top level ////
//// ////
//// This file is part of the OpenRISC 1200 project ////
//// http://www.opencores.org/cores/or1k/ ////
//// ////
//// Description ////
//// Instantiation of all DMMU blocks. ////
//// ////
//// To Do: ////
//// - make it smaller and faster ////
//// ////
//// Author(s): ////
//// - Damjan Lampret, lampret@opencores.org ////
//// ////
//////////////////////////////////////////////////////////////////////
//// ////
//// Copyright (C) 2000 Authors and OPENCORES.ORG ////
//// ////
//// This source file may be used and distributed without ////
//// restriction provided that this copyright statement is not ////
//// removed from the file and that any derivative work contains ////
//// the original copyright notice and the associated disclaimer. ////
//// ////
//// This source file is free software; you can redistribute it ////
//// and/or modify it under the terms of the GNU Lesser General ////
//// Public License as published by the Free Software Foundation; ////
//// either version 2.1 of the License, or (at your option) any ////
//// later version. ////
//// ////
//// This source is distributed in the hope that it will be ////
//// useful, but WITHOUT ANY WARRANTY; without even the implied ////
//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR ////
//// PURPOSE. See the GNU Lesser General Public License for more ////
//// details. ////
//// ////
//// You should have received a copy of the GNU Lesser General ////
//// Public License along with this source; if not, download it ////
//// from http://www.opencores.org/lgpl.shtml ////
//// ////
//////////////////////////////////////////////////////////////////////
//
// CVS Revision History
//
// $Log: not supported by cvs2svn $
// Revision 1.7.4.1 2003/07/08 15:36:37 lampret
// Added embedded memory QMEM.
//
// Revision 1.7 2002/10/17 20:04:40 lampret
// Added BIST scan. Special VS RAMs need to be used to implement BIST.
//
// Revision 1.6 2002/03/29 15:16:55 lampret
// Some of the warnings fixed.
//
// Revision 1.5 2002/02/14 15:34:02 simons
// Lapsus fixed.
//
// Revision 1.4 2002/02/11 04:33:17 lampret
// Speed optimizations (removed duplicate _cyc_ and _stb_). Fixed D/IMMU cache-inhibit attr.
//
// Revision 1.3 2002/01/28 01:16:00 lampret
// Changed 'void' nop-ops instead of insn[0] to use insn[16]. Debug unit stalls the tick timer. Prepared new flag generation for add and and insns. Blocked DC/IC while they are turned off. Fixed I/D MMU SPRs layout except WAYs. TODO: smart IC invalidate, l.j 2 and TLB ways.
//
// Revision 1.2 2002/01/14 06:18:22 lampret
// Fixed mem2reg bug in FAST implementation. Updated debug unit to work with new genpc/if.
//
// Revision 1.1 2002/01/03 08:16:15 lampret
// New prefixes for RTL files, prefixed module names. Updated cache controllers and MMUs.
//
// Revision 1.6 2001/10/21 17:57:16 lampret
// Removed params from generic_XX.v. Added translate_off/on in sprs.v and id.v. Removed spr_addr from dc.v and ic.v. Fixed CR+LF.
//
// Revision 1.5 2001/10/14 13:12:09 lampret
// MP3 version.
//
// Revision 1.1.1.1 2001/10/06 10:18:36 igorm
// no message
//
// Revision 1.1 2001/08/17 08:03:35 lampret
// *** empty log message ***
//
// Revision 1.2 2001/07/22 03:31:53 lampret
// Fixed RAM's oen bug. Cache bypass under development.
//
// Revision 1.1 2001/07/20 00:46:03 lampret
// Development version of RTL. Libraries are missing.
//
//
 
// synopsys translate_off
`include "timescale.v"
// synopsys translate_on
`include "or1200_defines.v"
 
//
// Data MMU
//
 
module or1200_dmmu_top(
// Rst and clk
clk, rst,
 
// CPU i/f
dc_en, dmmu_en, supv, dcpu_adr_i, dcpu_cycstb_i, dcpu_we_i,
dcpu_tag_o, dcpu_err_o,
 
// SPR access
spr_cs, spr_write, spr_addr, spr_dat_i, spr_dat_o,
 
`ifdef OR1200_BIST
// RAM BIST
mbist_si_i, mbist_so_o, mbist_ctrl_i,
`endif
 
// DC i/f
qmemdmmu_err_i, qmemdmmu_tag_i, qmemdmmu_adr_o, qmemdmmu_cycstb_o, qmemdmmu_ci_o
);
 
parameter dw = `OR1200_OPERAND_WIDTH;
parameter aw = `OR1200_OPERAND_WIDTH;
 
//
// I/O
//
 
//
// Clock and reset
//
input clk;
input rst;
 
//
// CPU I/F
//
input dc_en;
input dmmu_en;
input supv;
input [aw-1:0] dcpu_adr_i;
input dcpu_cycstb_i;
input dcpu_we_i;
output [3:0] dcpu_tag_o;
output dcpu_err_o;
 
//
// SPR access
//
input spr_cs;
input spr_write;
input [aw-1:0] spr_addr;
input [31:0] spr_dat_i;
output [31:0] spr_dat_o;
 
`ifdef OR1200_BIST
//
// RAM BIST
//
input mbist_si_i;
input [`OR1200_MBIST_CTRL_WIDTH - 1:0] mbist_ctrl_i;
output mbist_so_o;
`endif
 
//
// DC I/F
//
input qmemdmmu_err_i;
input [3:0] qmemdmmu_tag_i;
output [aw-1:0] qmemdmmu_adr_o;
output qmemdmmu_cycstb_o;
output qmemdmmu_ci_o;
 
//
// Internal wires and regs
//
wire dtlb_spr_access;
wire [31:`OR1200_DMMU_PS] dtlb_ppn;
wire dtlb_hit;
wire dtlb_uwe;
wire dtlb_ure;
wire dtlb_swe;
wire dtlb_sre;
wire [31:0] dtlb_dat_o;
wire dtlb_en;
wire dtlb_ci;
wire fault;
wire miss;
`ifdef OR1200_NO_DMMU
`else
reg dtlb_done;
reg [31:`OR1200_DMMU_PS] dcpu_vpn_r;
`endif
 
//
// Implemented bits inside match and translate registers
//
// dtlbwYmrX: vpn 31-10 v 0
// dtlbwYtrX: ppn 31-10 swe 9 sre 8 uwe 7 ure 6
//
// dtlb memory width:
// 19 bits for ppn
// 13 bits for vpn
// 1 bit for valid
// 4 bits for protection
// 1 bit for cache inhibit
 
`ifdef OR1200_NO_DMMU
 
//
// Put all outputs in inactive state
//
assign spr_dat_o = 32'h00000000;
assign qmemdmmu_adr_o = dcpu_adr_i;
assign dcpu_tag_o = qmemdmmu_tag_i;
assign qmemdmmu_cycstb_o = dcpu_cycstb_i;
assign dcpu_err_o = qmemdmmu_err_i;
assign qmemdmmu_ci_o = `OR1200_DMMU_CI;
`ifdef OR1200_BIST
assign mbist_so_o = mbist_si_i;
`endif
 
`else
 
//
// DTLB SPR access
//
// 0A00 - 0AFF dtlbmr w0
// 0A00 - 0A3F dtlbmr w0 [63:0]
//
// 0B00 - 0BFF dtlbtr w0
// 0B00 - 0B3F dtlbtr w0 [63:0]
//
assign dtlb_spr_access = spr_cs;
 
//
// Tags:
//
// OR1200_DTAG_TE - TLB miss Exception
// OR1200_DTAG_PE - Page fault Exception
//
assign dcpu_tag_o = miss ? `OR1200_DTAG_TE : fault ? `OR1200_DTAG_PE : qmemdmmu_tag_i;
 
//
// dcpu_err_o
//
assign dcpu_err_o = miss | fault | qmemdmmu_err_i;
 
//
// Assert dtlb_done one clock cycle after new address and dtlb_en must be active.
//
always @(posedge clk or posedge rst)
if (rst)
dtlb_done <= #1 1'b0;
else if (dtlb_en)
dtlb_done <= #1 dcpu_cycstb_i;
else
dtlb_done <= #1 1'b0;
 
//
// Cut transfer if something goes wrong with translation. Also delayed signals because of translation delay.
//
assign qmemdmmu_cycstb_o = (!dc_en & dmmu_en) ? ~(miss | fault) & dtlb_done & dcpu_cycstb_i : ~(miss | fault) & dcpu_cycstb_i;
//assign qmemdmmu_cycstb_o = (dmmu_en) ? ~(miss | fault) & dcpu_cycstb_i : (miss | fault) ? 1'b0 : dcpu_cycstb_i;
 
//
// Cache Inhibit
//
assign qmemdmmu_ci_o = dmmu_en ? dtlb_done & dtlb_ci : `OR1200_DMMU_CI;
 
//
// Register dcpu_adr_i's VPN for use when DMMU is not enabled but PPN is expected to come
// one clock cycle after offset part.
//
always @(posedge clk or posedge rst)
if (rst)
dcpu_vpn_r <= #1 {31-`OR1200_DMMU_PS{1'b0}};
else
dcpu_vpn_r <= #1 dcpu_adr_i[31:`OR1200_DMMU_PS];
 
//
// Physical address is either translated virtual address or
// simply equal when DMMU is disabled
//
// assign qmemdmmu_adr_o = dmmu_en ? {dtlb_ppn, dcpu_adr_i[`OR1200_DMMU_PS-1:0]} : {dcpu_vpn_r, dcpu_adr_i[`OR1200_DMMU_PS-1:0]};
assign qmemdmmu_adr_o = dmmu_en ? {dtlb_ppn, dcpu_adr_i[`OR1200_DMMU_PS-1:0]} : dcpu_adr_i;
 
//
// Output to SPRS unit
//
assign spr_dat_o = dtlb_spr_access ? dtlb_dat_o : 32'h00000000;
 
//
// Page fault exception logic
//
assign fault = dtlb_done &
( (!dcpu_we_i & !supv & !dtlb_ure) // Load in user mode not enabled
|| (!dcpu_we_i & supv & !dtlb_sre) // Load in supv mode not enabled
|| (dcpu_we_i & !supv & !dtlb_uwe) // Store in user mode not enabled
|| (dcpu_we_i & supv & !dtlb_swe) ); // Store in supv mode not enabled
 
//
// TLB Miss exception logic
//
assign miss = dtlb_done & !dtlb_hit;
 
//
// DTLB Enable
//
assign dtlb_en = dmmu_en & dcpu_cycstb_i;
 
//
// Instantiation of DTLB
//
or1200_dmmu_tlb or1200_dmmu_tlb(
// Rst and clk
.clk(clk),
.rst(rst),
 
// I/F for translation
.tlb_en(dtlb_en),
.vaddr(dcpu_adr_i),
.hit(dtlb_hit),
.ppn(dtlb_ppn),
.uwe(dtlb_uwe),
.ure(dtlb_ure),
.swe(dtlb_swe),
.sre(dtlb_sre),
.ci(dtlb_ci),
 
`ifdef OR1200_BIST
// RAM BIST
.mbist_si_i(mbist_si_i),
.mbist_so_o(mbist_so_o),
.mbist_ctrl_i(mbist_ctrl_i),
`endif
 
// SPR access
.spr_cs(dtlb_spr_access),
.spr_write(spr_write),
.spr_addr(spr_addr),
.spr_dat_i(spr_dat_i),
.spr_dat_o(dtlb_dat_o)
);
 
`endif
 
endmodule
/tags/rel_26/or1200/rtl/verilog/or1200_ic_tag.v
0,0 → 1,163
//////////////////////////////////////////////////////////////////////
//// ////
//// OR1200's IC TAGs ////
//// ////
//// This file is part of the OpenRISC 1200 project ////
//// http://www.opencores.org/cores/or1k/ ////
//// ////
//// Description ////
//// Instatiation of instruction cache tag rams ////
//// ////
//// To Do: ////
//// - make it smaller and faster ////
//// ////
//// Author(s): ////
//// - Damjan Lampret, lampret@opencores.org ////
//// ////
//////////////////////////////////////////////////////////////////////
//// ////
//// Copyright (C) 2000 Authors and OPENCORES.ORG ////
//// ////
//// This source file may be used and distributed without ////
//// restriction provided that this copyright statement is not ////
//// removed from the file and that any derivative work contains ////
//// the original copyright notice and the associated disclaimer. ////
//// ////
//// This source file is free software; you can redistribute it ////
//// and/or modify it under the terms of the GNU Lesser General ////
//// Public License as published by the Free Software Foundation; ////
//// either version 2.1 of the License, or (at your option) any ////
//// later version. ////
//// ////
//// This source is distributed in the hope that it will be ////
//// useful, but WITHOUT ANY WARRANTY; without even the implied ////
//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR ////
//// PURPOSE. See the GNU Lesser General Public License for more ////
//// details. ////
//// ////
//// You should have received a copy of the GNU Lesser General ////
//// Public License along with this source; if not, download it ////
//// from http://www.opencores.org/lgpl.shtml ////
//// ////
//////////////////////////////////////////////////////////////////////
//
// CVS Revision History
//
// $Log: not supported by cvs2svn $
// Revision 1.3 2002/10/24 22:19:04 mohor
// Signal scanb_eni renamed to scanb_en
//
// Revision 1.2 2002/10/17 20:04:40 lampret
// Added BIST scan. Special VS RAMs need to be used to implement BIST.
//
// Revision 1.1 2002/01/03 08:16:15 lampret
// New prefixes for RTL files, prefixed module names. Updated cache controllers and MMUs.
//
// Revision 1.8 2001/10/21 17:57:16 lampret
// Removed params from generic_XX.v. Added translate_off/on in sprs.v and id.v. Removed spr_addr from dc.v and ic.v. Fixed CR+LF.
//
// Revision 1.7 2001/10/14 13:12:09 lampret
// MP3 version.
//
// Revision 1.1.1.1 2001/10/06 10:18:36 igorm
// no message
//
// Revision 1.2 2001/08/09 13:39:33 lampret
// Major clean-up.
//
// Revision 1.1 2001/07/20 00:46:03 lampret
// Development version of RTL. Libraries are missing.
//
//
 
// synopsys translate_off
`include "timescale.v"
// synopsys translate_on
`include "or1200_defines.v"
 
module or1200_ic_tag(
// Clock and reset
clk, rst,
 
`ifdef OR1200_BIST
// RAM BIST
mbist_si_i, mbist_so_o, mbist_ctrl_i,
`endif
 
// Internal i/f
addr, en, we, datain, tag_v, tag
);
 
parameter dw = `OR1200_ICTAG_W;
parameter aw = `OR1200_ICTAG;
 
//
// I/O
//
 
//
// Clock and reset
//
input clk;
input rst;
 
`ifdef OR1200_BIST
//
// RAM BIST
//
input mbist_si_i;
input [`OR1200_MBIST_CTRL_WIDTH - 1:0] mbist_ctrl_i;
output mbist_so_o;
`endif
 
//
// Internal i/f
//
input [aw-1:0] addr;
input en;
input we;
input [dw-1:0] datain;
output tag_v;
output [dw-2:0] tag;
 
`ifdef OR1200_NO_IC
 
//
// Insn cache not implemented
//
assign tag = {dw-1{1'b0}};
assign tag_v = 1'b0;
`ifdef OR1200_BIST
assign mbist_so_o = mbist_si_i;
`endif
 
`else
 
//
// Instantiation of TAG RAM block
//
`ifdef OR1200_IC_1W_4KB
or1200_spram_256x21 ic_tag0(
`endif
`ifdef OR1200_IC_1W_8KB
or1200_spram_512x20 ic_tag0(
`endif
`ifdef OR1200_BIST
// RAM BIST
.mbist_si_i(mbist_si_i),
.mbist_so_o(mbist_so_o),
.mbist_ctrl_i(mbist_ctrl_i),
`endif
.clk(clk),
.rst(rst),
.ce(en),
.we(we),
.oe(1'b1),
.addr(addr),
.di(datain),
.do({tag, tag_v})
);
 
`endif
 
endmodule
/tags/rel_26/or1200/rtl/verilog/or1200_spram_64x14.v
0,0 → 1,346
//////////////////////////////////////////////////////////////////////
//// ////
//// Generic Single-Port Synchronous RAM ////
//// ////
//// This file is part of memory library available from ////
//// http://www.opencores.org/cvsweb.shtml/generic_memories/ ////
//// ////
//// Description ////
//// This block is a wrapper with common single-port ////
//// synchronous memory interface for different ////
//// types of ASIC and FPGA RAMs. Beside universal memory ////
//// interface it also provides behavioral model of generic ////
//// single-port synchronous RAM. ////
//// It should be used in all OPENCORES designs that want to be ////
//// portable accross different target technologies and ////
//// independent of target memory. ////
//// ////
//// Supported ASIC RAMs are: ////
//// - Artisan Single-Port Sync RAM ////
//// - Avant! Two-Port Sync RAM (*) ////
//// - Virage Single-Port Sync RAM ////
//// - Virtual Silicon Single-Port Sync RAM ////
//// ////
//// Supported FPGA RAMs are: ////
//// - Xilinx Virtex RAMB4_S16 ////
//// - Altera LPM ////
//// ////
//// To Do: ////
//// - xilinx rams need external tri-state logic ////
//// - fix avant! two-port ram ////
//// - add additional RAMs ////
//// ////
//// Author(s): ////
//// - Damjan Lampret, lampret@opencores.org ////
//// ////
//////////////////////////////////////////////////////////////////////
//// ////
//// Copyright (C) 2000 Authors and OPENCORES.ORG ////
//// ////
//// This source file may be used and distributed without ////
//// restriction provided that this copyright statement is not ////
//// removed from the file and that any derivative work contains ////
//// the original copyright notice and the associated disclaimer. ////
//// ////
//// This source file is free software; you can redistribute it ////
//// and/or modify it under the terms of the GNU Lesser General ////
//// Public License as published by the Free Software Foundation; ////
//// either version 2.1 of the License, or (at your option) any ////
//// later version. ////
//// ////
//// This source is distributed in the hope that it will be ////
//// useful, but WITHOUT ANY WARRANTY; without even the implied ////
//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR ////
//// PURPOSE. See the GNU Lesser General Public License for more ////
//// details. ////
//// ////
//// You should have received a copy of the GNU Lesser General ////
//// Public License along with this source; if not, download it ////
//// from http://www.opencores.org/lgpl.shtml ////
//// ////
//////////////////////////////////////////////////////////////////////
//
// CVS Revision History
//
// $Log: not supported by cvs2svn $
// Revision 1.3 2003/04/07 01:19:07 lampret
// Added Altera LPM RAMs. Changed generic RAM output when OE inactive.
//
// Revision 1.2 2002/10/17 20:04:41 lampret
// Added BIST scan. Special VS RAMs need to be used to implement BIST.
//
// Revision 1.1 2002/01/03 08:16:15 lampret
// New prefixes for RTL files, prefixed module names. Updated cache controllers and MMUs.
//
// Revision 1.7 2001/11/02 18:57:14 lampret
// Modified virtual silicon instantiations.
//
// Revision 1.6 2001/10/21 17:57:16 lampret
// Removed params from generic_XX.v. Added translate_off/on in sprs.v and id.v. Removed spr_addr from dc.v and ic.v. Fixed CR+LF.
//
// Revision 1.5 2001/10/14 13:12:09 lampret
// MP3 version.
//
// Revision 1.1.1.1 2001/10/06 10:18:36 igorm
// no message
//
// Revision 1.1 2001/08/09 13:39:33 lampret
// Major clean-up.
//
// Revision 1.2 2001/07/30 05:38:02 lampret
// Adding empty directories required by HDL coding guidelines
//
//
 
// synopsys translate_off
`include "timescale.v"
// synopsys translate_on
`include "or1200_defines.v"
 
module or1200_spram_64x14(
`ifdef OR1200_BIST
// RAM BIST
mbist_si_i, mbist_so_o, mbist_ctrl_i,
`endif
// Generic synchronous single-port RAM interface
clk, rst, ce, we, oe, addr, di, do
);
 
//
// Default address and data buses width
//
parameter aw = 6;
parameter dw = 14;
 
`ifdef OR1200_BIST
//
// RAM BIST
//
input mbist_si_i;
input [`OR1200_MBIST_CTRL_WIDTH - 1:0] mbist_ctrl_i;
output mbist_so_o;
`endif
 
//
// Generic synchronous single-port RAM interface
//
input clk; // Clock
input rst; // Reset
input ce; // Chip enable input
input we; // Write enable input
input oe; // Output enable input
input [aw-1:0] addr; // address bus inputs
input [dw-1:0] di; // input data bus
output [dw-1:0] do; // output data bus
 
//
// Internal wires and registers
//
wire [1:0] unconnected;
 
`ifdef OR1200_ARTISAN_SSP
`else
`ifdef OR1200_VIRTUALSILICON_SSP
`else
`ifdef OR1200_BIST
assign mbist_so_o = mbist_si_i;
`endif
`endif
`endif
 
`ifdef OR1200_ARTISAN_SSP
 
//
// Instantiation of ASIC memory:
//
// Artisan Synchronous Single-Port RAM (ra1sh)
//
`ifdef UNUSED
art_hssp_64x14 #(dw, 1<<aw, aw) artisan_ssp(
`else
`ifdef OR1200_BIST
art_hssp_64x14_bist artisan_ssp(
`else
art_hssp_64x14 artisan_ssp(
`endif
`endif
`ifdef OR1200_BIST
// RAM BIST
.mbist_si_i(mbist_si_i),
.mbist_so_o(mbist_so_o),
.mbist_ctrl_i(mbist_ctrl_i),
`endif
.CLK(clk),
.CEN(~ce),
.WEN(~we),
.A(addr),
.D(di),
.OEN(~oe),
.Q(do)
);
 
`else
 
`ifdef OR1200_AVANT_ATP
 
//
// Instantiation of ASIC memory:
//
// Avant! Asynchronous Two-Port RAM
//
avant_atp avant_atp(
.web(~we),
.reb(),
.oeb(~oe),
.rcsb(),
.wcsb(),
.ra(addr),
.wa(addr),
.di(di),
.do(do)
);
 
`else
 
`ifdef OR1200_VIRAGE_SSP
 
//
// Instantiation of ASIC memory:
//
// Virage Synchronous 1-port R/W RAM
//
virage_ssp virage_ssp(
.clk(clk),
.adr(addr),
.d(di),
.we(we),
.oe(oe),
.me(ce),
.q(do)
);
 
`else
 
`ifdef OR1200_VIRTUALSILICON_SSP
 
//
// Instantiation of ASIC memory:
//
// Virtual Silicon Single-Port Synchronous SRAM
//
`ifdef UNUSED
vs_hdsp_64x14 #(1<<aw, aw-1, dw-1) vs_ssp(
`else
`ifdef OR1200_BIST
vs_hdsp_64x14_bist vs_ssp(
`else
vs_hdsp_64x14 vs_ssp(
`endif
`endif
`ifdef OR1200_BIST
// RAM BIST
.mbist_si_i(mbist_si_i),
.mbist_so_o(mbist_so_o),
.mbist_ctrl_i(mbist_ctrl_i),
`endif
.CK(clk),
.ADR(addr),
.DI(di),
.WEN(~we),
.CEN(~ce),
.OEN(~oe),
.DOUT(do)
);
 
`else
 
`ifdef OR1200_XILINX_RAMB4
 
//
// Instantiation of FPGA memory:
//
// Virtex/Spartan2
//
 
//
// Block 0
//
RAMB4_S16 ramb4_s16_0(
.CLK(clk),
.RST(rst),
.ADDR({2'b00, addr}),
.DI({unconnected, di[13:0]}),
.EN(ce),
.WE(we),
.DO({unconnected, do[13:0]})
);
 
`else
 
`ifdef OR1200_ALTERA_LPM
 
//
// Instantiation of FPGA memory:
//
// Altera LPM
//
// Added By Jamil Khatib
//
 
wire wr;
 
assign wr = ce & we;
 
initial $display("Using Altera LPM.");
 
lpm_ram_dq lpm_ram_dq_component (
.address(addr),
.inclock(clk),
.outclock(clk),
.data(di),
.we(wr),
.q(do)
);
 
defparam lpm_ram_dq_component.lpm_width = dw,
lpm_ram_dq_component.lpm_widthad = aw,
lpm_ram_dq_component.lpm_indata = "REGISTERED",
lpm_ram_dq_component.lpm_address_control = "REGISTERED",
lpm_ram_dq_component.lpm_outdata = "UNREGISTERED",
lpm_ram_dq_component.lpm_hint = "USE_EAB=ON";
// examplar attribute lpm_ram_dq_component NOOPT TRUE
 
`else
 
//
// Generic single-port synchronous RAM model
//
 
//
// Generic RAM's registers and wires
//
reg [dw-1:0] mem [(1<<aw)-1:0]; // RAM content
reg [dw-1:0] do_reg; // RAM data output register
 
//
// Data output drivers
//
assign do = (oe) ? do_reg : {dw{1'b0}};
 
//
// RAM read and write
//
always @(posedge clk)
if (ce && !we)
do_reg <= #1 mem[addr];
else if (ce && we)
mem[addr] <= #1 di;
 
`endif // !OR1200_ALTERA_LPM
`endif // !OR1200_XILINX_RAMB4_S16
`endif // !OR1200_VIRTUALSILICON_SSP
`endif // !OR1200_VIRAGE_SSP
`endif // !OR1200_AVANT_ATP
`endif // !OR1200_ARTISAN_SSP
 
endmodule
/tags/rel_26/or1200/rtl/verilog/or1200_ic_ram.v
0,0 → 1,154
//////////////////////////////////////////////////////////////////////
//// ////
//// OR1200's IC RAMs ////
//// ////
//// This file is part of the OpenRISC 1200 project ////
//// http://www.opencores.org/cores/or1k/ ////
//// ////
//// Description ////
//// Instantiation of Instruction cache data rams ////
//// ////
//// To Do: ////
//// - make it smaller and faster ////
//// ////
//// Author(s): ////
//// - Damjan Lampret, lampret@opencores.org ////
//// ////
//////////////////////////////////////////////////////////////////////
//// ////
//// Copyright (C) 2000 Authors and OPENCORES.ORG ////
//// ////
//// This source file may be used and distributed without ////
//// restriction provided that this copyright statement is not ////
//// removed from the file and that any derivative work contains ////
//// the original copyright notice and the associated disclaimer. ////
//// ////
//// This source file is free software; you can redistribute it ////
//// and/or modify it under the terms of the GNU Lesser General ////
//// Public License as published by the Free Software Foundation; ////
//// either version 2.1 of the License, or (at your option) any ////
//// later version. ////
//// ////
//// This source is distributed in the hope that it will be ////
//// useful, but WITHOUT ANY WARRANTY; without even the implied ////
//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR ////
//// PURPOSE. See the GNU Lesser General Public License for more ////
//// details. ////
//// ////
//// You should have received a copy of the GNU Lesser General ////
//// Public License along with this source; if not, download it ////
//// from http://www.opencores.org/lgpl.shtml ////
//// ////
//////////////////////////////////////////////////////////////////////
//
// CVS Revision History
//
// $Log: not supported by cvs2svn $
// Revision 1.2 2002/10/17 20:04:40 lampret
// Added BIST scan. Special VS RAMs need to be used to implement BIST.
//
// Revision 1.1 2002/01/03 08:16:15 lampret
// New prefixes for RTL files, prefixed module names. Updated cache controllers and MMUs.
//
// Revision 1.9 2001/10/21 17:57:16 lampret
// Removed params from generic_XX.v. Added translate_off/on in sprs.v and id.v. Removed spr_addr from dc.v and ic.v. Fixed CR+LF.
//
// Revision 1.8 2001/10/14 13:12:09 lampret
// MP3 version.
//
// Revision 1.1.1.1 2001/10/06 10:18:36 igorm
// no message
//
// Revision 1.3 2001/08/09 13:39:33 lampret
// Major clean-up.
//
// Revision 1.2 2001/07/22 03:31:54 lampret
// Fixed RAM's oen bug. Cache bypass under development.
//
// Revision 1.1 2001/07/20 00:46:03 lampret
// Development version of RTL. Libraries are missing.
//
//
 
// synopsys translate_off
`include "timescale.v"
// synopsys translate_on
`include "or1200_defines.v"
 
module or1200_ic_ram(
// Clock and reset
clk, rst,
 
`ifdef OR1200_BIST
// RAM BIST
mbist_si_i, mbist_so_o, mbist_ctrl_i,
`endif
 
// Internal i/f
addr, en, we, datain, dataout
);
 
parameter dw = `OR1200_OPERAND_WIDTH;
parameter aw = `OR1200_ICINDX;
 
//
// I/O
//
input clk;
input rst;
input [aw-1:0] addr;
input en;
input [3:0] we;
input [dw-1:0] datain;
output [dw-1:0] dataout;
 
`ifdef OR1200_BIST
//
// RAM BIST
//
input mbist_si_i;
input [`OR1200_MBIST_CTRL_WIDTH - 1:0] mbist_ctrl_i;
output mbist_so_o;
`endif
 
`ifdef OR1200_NO_IC
 
//
// Insn cache not implemented
//
assign dataout = {dw{1'b0}};
`ifdef OR1200_BIST
assign mbist_so_o = mbist_si_i;
`endif
 
`else
 
//
// Instantiation of IC RAM block
//
`ifdef OR1200_IC_1W_4KB
or1200_spram_1024x32 ic_ram0(
`endif
`ifdef OR1200_IC_1W_8KB
or1200_spram_2048x32 ic_ram0(
`endif
`ifdef OR1200_BIST
// RAM BIST
.mbist_si_i(mbist_si_i),
.mbist_so_o(mbist_so_o),
.mbist_ctrl_i(mbist_ctrl_i),
`endif
.clk(clk),
.rst(rst),
.ce(en),
.we(we[0]),
.oe(1'b1),
.addr(addr),
.di(datain),
.do(dataout)
);
 
`endif
 
endmodule
 
/tags/rel_26/or1200/rtl/verilog/or1200_dmmu_tlb.v
0,0 → 1,282
//////////////////////////////////////////////////////////////////////
//// ////
//// OR1200's Data TLB ////
//// ////
//// This file is part of the OpenRISC 1200 project ////
//// http://www.opencores.org/cores/or1k/ ////
//// ////
//// Description ////
//// Instantiation of DTLB. ////
//// ////
//// To Do: ////
//// - make it smaller and faster ////
//// ////
//// Author(s): ////
//// - Damjan Lampret, lampret@opencores.org ////
//// ////
//////////////////////////////////////////////////////////////////////
//// ////
//// Copyright (C) 2000 Authors and OPENCORES.ORG ////
//// ////
//// This source file may be used and distributed without ////
//// restriction provided that this copyright statement is not ////
//// removed from the file and that any derivative work contains ////
//// the original copyright notice and the associated disclaimer. ////
//// ////
//// This source file is free software; you can redistribute it ////
//// and/or modify it under the terms of the GNU Lesser General ////
//// Public License as published by the Free Software Foundation; ////
//// either version 2.1 of the License, or (at your option) any ////
//// later version. ////
//// ////
//// This source is distributed in the hope that it will be ////
//// useful, but WITHOUT ANY WARRANTY; without even the implied ////
//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR ////
//// PURPOSE. See the GNU Lesser General Public License for more ////
//// details. ////
//// ////
//// You should have received a copy of the GNU Lesser General ////
//// Public License along with this source; if not, download it ////
//// from http://www.opencores.org/lgpl.shtml ////
//// ////
//////////////////////////////////////////////////////////////////////
//
// CVS Revision History
//
// $Log: not supported by cvs2svn $
// Revision 1.4 2002/10/17 20:04:40 lampret
// Added BIST scan. Special VS RAMs need to be used to implement BIST.
//
// Revision 1.3 2002/02/11 04:33:17 lampret
// Speed optimizations (removed duplicate _cyc_ and _stb_). Fixed D/IMMU cache-inhibit attr.
//
// Revision 1.2 2002/01/28 01:16:00 lampret
// Changed 'void' nop-ops instead of insn[0] to use insn[16]. Debug unit stalls the tick timer. Prepared new flag generation for add and and insns. Blocked DC/IC while they are turned off. Fixed I/D MMU SPRs layout except WAYs. TODO: smart IC invalidate, l.j 2 and TLB ways.
//
// Revision 1.1 2002/01/03 08:16:15 lampret
// New prefixes for RTL files, prefixed module names. Updated cache controllers and MMUs.
//
// Revision 1.8 2001/10/21 17:57:16 lampret
// Removed params from generic_XX.v. Added translate_off/on in sprs.v and id.v. Removed spr_addr from dc.v and ic.v. Fixed CR+LF.
//
// Revision 1.7 2001/10/14 13:12:09 lampret
// MP3 version.
//
// Revision 1.1.1.1 2001/10/06 10:18:36 igorm
// no message
//
//
 
// synopsys translate_off
`include "timescale.v"
// synopsys translate_on
`include "or1200_defines.v"
 
//
// Data TLB
//
 
module or1200_dmmu_tlb(
// Rst and clk
clk, rst,
 
// I/F for translation
tlb_en, vaddr, hit, ppn, uwe, ure, swe, sre, ci,
 
`ifdef OR1200_BIST
// RAM BIST
mbist_si_i, mbist_so_o, mbist_ctrl_i,
`endif
 
// SPR access
spr_cs, spr_write, spr_addr, spr_dat_i, spr_dat_o
);
 
parameter dw = `OR1200_OPERAND_WIDTH;
parameter aw = `OR1200_OPERAND_WIDTH;
 
//
// I/O
//
 
//
// Clock and reset
//
input clk;
input rst;
 
//
// I/F for translation
//
input tlb_en;
input [aw-1:0] vaddr;
output hit;
output [31:`OR1200_DMMU_PS] ppn;
output uwe;
output ure;
output swe;
output sre;
output ci;
 
`ifdef OR1200_BIST
//
// RAM BIST
//
input mbist_si_i;
input [`OR1200_MBIST_CTRL_WIDTH - 1:0] mbist_ctrl_i;
output mbist_so_o;
`endif
 
//
// SPR access
//
input spr_cs;
input spr_write;
input [31:0] spr_addr;
input [31:0] spr_dat_i;
output [31:0] spr_dat_o;
 
//
// Internal wires and regs
//
wire [`OR1200_DTLB_TAG] vpn;
wire v;
wire [`OR1200_DTLB_INDXW-1:0] tlb_index;
wire tlb_mr_en;
wire tlb_mr_we;
wire [`OR1200_DTLBMRW-1:0] tlb_mr_ram_in;
wire [`OR1200_DTLBMRW-1:0] tlb_mr_ram_out;
wire tlb_tr_en;
wire tlb_tr_we;
wire [`OR1200_DTLBTRW-1:0] tlb_tr_ram_in;
wire [`OR1200_DTLBTRW-1:0] tlb_tr_ram_out;
`ifdef OR1200_BIST
//
// RAM BIST
//
wire mbist_mr_so;
wire mbist_tr_so;
wire mbist_mr_si = mbist_si_i;
wire mbist_tr_si = mbist_mr_so;
assign mbist_so_o = mbist_tr_so;
`endif
 
//
// Implemented bits inside match and translate registers
//
// dtlbwYmrX: vpn 31-19 v 0
// dtlbwYtrX: ppn 31-13 swe 9 sre 8 uwe 7 ure 6
//
// dtlb memory width:
// 19 bits for ppn
// 13 bits for vpn
// 1 bit for valid
// 4 bits for protection
// 1 bit for cache inhibit
 
//
// Enable for Match registers
//
assign tlb_mr_en = tlb_en | (spr_cs & !spr_addr[`OR1200_DTLB_TM_ADDR]);
 
//
// Write enable for Match registers
//
assign tlb_mr_we = spr_cs & spr_write & !spr_addr[`OR1200_DTLB_TM_ADDR];
 
//
// Enable for Translate registers
//
assign tlb_tr_en = tlb_en | (spr_cs & spr_addr[`OR1200_DTLB_TM_ADDR]);
 
//
// Write enable for Translate registers
//
assign tlb_tr_we = spr_cs & spr_write & spr_addr[`OR1200_DTLB_TM_ADDR];
 
//
// Output to SPRS unit
//
assign spr_dat_o = (spr_cs & !spr_write & !spr_addr[`OR1200_DTLB_TM_ADDR]) ?
{vpn, tlb_index & {`OR1200_DTLB_INDXW{v}}, {`OR1200_DTLB_TAGW-7{1'b0}}, 1'b0, 5'b00000, v} :
(spr_cs & !spr_write & spr_addr[`OR1200_DTLB_TM_ADDR]) ?
{ppn, {`OR1200_DMMU_PS-10{1'b0}}, swe, sre, uwe, ure, {4{1'b0}}, ci, 1'b0} :
32'h00000000;
 
//
// Assign outputs from Match registers
//
assign {vpn, v} = tlb_mr_ram_out;
 
//
// Assign to Match registers inputs
//
assign tlb_mr_ram_in = {spr_dat_i[`OR1200_DTLB_TAG], spr_dat_i[`OR1200_DTLBMR_V_BITS]};
 
//
// Assign outputs from Translate registers
//
assign {ppn, swe, sre, uwe, ure, ci} = tlb_tr_ram_out;
 
//
// Assign to Translate registers inputs
//
assign tlb_tr_ram_in = {spr_dat_i[31:`OR1200_DMMU_PS],
spr_dat_i[`OR1200_DTLBTR_SWE_BITS],
spr_dat_i[`OR1200_DTLBTR_SRE_BITS],
spr_dat_i[`OR1200_DTLBTR_UWE_BITS],
spr_dat_i[`OR1200_DTLBTR_URE_BITS],
spr_dat_i[`OR1200_DTLBTR_CI_BITS]};
 
//
// Generate hit
//
assign hit = (vpn == vaddr[`OR1200_DTLB_TAG]) & v;
 
//
// TLB index is normally vaddr[18:13]. If it is SPR access then index is
// spr_addr[5:0].
//
assign tlb_index = spr_cs ? spr_addr[`OR1200_DTLB_INDXW-1:0] : vaddr[`OR1200_DTLB_INDX];
 
//
// Instantiation of DTLB Match Registers
//
or1200_spram_64x14 dtlb_mr_ram(
.clk(clk),
.rst(rst),
`ifdef OR1200_BIST
// RAM BIST
.mbist_si_i(mbist_mr_si),
.mbist_so_o(mbist_mr_so),
.mbist_ctrl_i(mbist_ctrl_i),
`endif
.ce(tlb_mr_en),
.we(tlb_mr_we),
.oe(1'b1),
.addr(tlb_index),
.di(tlb_mr_ram_in),
.do(tlb_mr_ram_out)
);
 
//
// Instantiation of DTLB Translate Registers
//
or1200_spram_64x24 dtlb_tr_ram(
.clk(clk),
.rst(rst),
`ifdef OR1200_BIST
// RAM BIST
.mbist_si_i(mbist_tr_si),
.mbist_so_o(mbist_tr_so),
.mbist_ctrl_i(mbist_ctrl_i),
`endif
.ce(tlb_tr_en),
.we(tlb_tr_we),
.oe(1'b1),
.addr(tlb_index),
.di(tlb_tr_ram_in),
.do(tlb_tr_ram_out)
);
 
endmodule
/tags/rel_26/or1200/rtl/verilog/or1200_spram_512x20.v
0,0 → 1,378
//////////////////////////////////////////////////////////////////////
//// ////
//// Generic Single-Port Synchronous RAM ////
//// ////
//// This file is part of memory library available from ////
//// http://www.opencores.org/cvsweb.shtml/generic_memories/ ////
//// ////
//// Description ////
//// This block is a wrapper with common single-port ////
//// synchronous memory interface for different ////
//// types of ASIC and FPGA RAMs. Beside universal memory ////
//// interface it also provides behavioral model of generic ////
//// single-port synchronous RAM. ////
//// It should be used in all OPENCORES designs that want to be ////
//// portable accross different target technologies and ////
//// independent of target memory. ////
//// ////
//// Supported ASIC RAMs are: ////
//// - Artisan Single-Port Sync RAM ////
//// - Avant! Two-Port Sync RAM (*) ////
//// - Virage Single-Port Sync RAM ////
//// - Virtual Silicon Single-Port Sync RAM ////
//// ////
//// Supported FPGA RAMs are: ////
//// - Xilinx Virtex RAMB4_S16 ////
//// - Altera LPM ////
//// ////
//// To Do: ////
//// - xilinx rams need external tri-state logic ////
//// - fix avant! two-port ram ////
//// - add additional RAMs ////
//// ////
//// Author(s): ////
//// - Damjan Lampret, lampret@opencores.org ////
//// ////
//////////////////////////////////////////////////////////////////////
//// ////
//// Copyright (C) 2000 Authors and OPENCORES.ORG ////
//// ////
//// This source file may be used and distributed without ////
//// restriction provided that this copyright statement is not ////
//// removed from the file and that any derivative work contains ////
//// the original copyright notice and the associated disclaimer. ////
//// ////
//// This source file is free software; you can redistribute it ////
//// and/or modify it under the terms of the GNU Lesser General ////
//// Public License as published by the Free Software Foundation; ////
//// either version 2.1 of the License, or (at your option) any ////
//// later version. ////
//// ////
//// This source is distributed in the hope that it will be ////
//// useful, but WITHOUT ANY WARRANTY; without even the implied ////
//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR ////
//// PURPOSE. See the GNU Lesser General Public License for more ////
//// details. ////
//// ////
//// You should have received a copy of the GNU Lesser General ////
//// Public License along with this source; if not, download it ////
//// from http://www.opencores.org/lgpl.shtml ////
//// ////
//////////////////////////////////////////////////////////////////////
//
// CVS Revision History
//
// $Log: not supported by cvs2svn $
// Revision 1.3 2003/04/07 01:19:07 lampret
// Added Altera LPM RAMs. Changed generic RAM output when OE inactive.
//
// Revision 1.2 2002/10/17 20:04:40 lampret
// Added BIST scan. Special VS RAMs need to be used to implement BIST.
//
// Revision 1.1 2002/01/03 08:16:15 lampret
// New prefixes for RTL files, prefixed module names. Updated cache controllers and MMUs.
//
// Revision 1.10 2001/11/27 21:24:04 lampret
// Changed instantiation name of VS RAMs.
//
// Revision 1.9 2001/11/27 19:45:04 lampret
// Fixed VS RAM instantiation - again.
//
// Revision 1.8 2001/11/23 21:42:31 simons
// Program counter divided to PPC and NPC.
//
// Revision 1.6 2001/10/21 17:57:16 lampret
// Removed params from generic_XX.v. Added translate_off/on in sprs.v and id.v. Removed spr_addr from dc.v and ic.v. Fixed CR+LF.
//
// Revision 1.5 2001/10/14 13:12:09 lampret
// MP3 version.
//
// Revision 1.1.1.1 2001/10/06 10:18:36 igorm
// no message
//
// Revision 1.1 2001/08/09 13:39:33 lampret
// Major clean-up.
//
// Revision 1.2 2001/07/30 05:38:02 lampret
// Adding empty directories required by HDL coding guidelines
//
//
 
// synopsys translate_off
`include "timescale.v"
// synopsys translate_on
`include "or1200_defines.v"
 
module or1200_spram_512x20(
`ifdef OR1200_BIST
// RAM BIST
mbist_si_i, mbist_so_o, mbist_ctrl_i,
`endif
// Generic synchronous single-port RAM interface
clk, rst, ce, we, oe, addr, di, do
);
 
//
// Default address and data buses width
//
parameter aw = 9;
parameter dw = 20;
 
`ifdef OR1200_BIST
//
// RAM BIST
//
input mbist_si_i;
input [`OR1200_MBIST_CTRL_WIDTH - 1:0] mbist_ctrl_i;
output mbist_so_o;
`endif
 
//
// Generic synchronous single-port RAM interface
//
input clk; // Clock
input rst; // Reset
input ce; // Chip enable input
input we; // Write enable input
input oe; // Output enable input
input [aw-1:0] addr; // address bus inputs
input [dw-1:0] di; // input data bus
output [dw-1:0] do; // output data bus
 
//
// Internal wires and registers
//
wire [3:0] unconnected;
 
`ifdef OR1200_ARTISAN_SSP
`else
`ifdef OR1200_VIRTUALSILICON_SSP
`else
`ifdef OR1200_BIST
assign mbist_so_o = mbist_si_i;
`endif
`endif
`endif
 
`ifdef OR1200_ARTISAN_SSP
 
//
// Instantiation of ASIC memory:
//
// Artisan Synchronous Single-Port RAM (ra1sh)
//
`ifdef UNUSED
art_hssp_512x20 #(dw, 1<<aw, aw) artisan_ssp(
`else
`ifdef OR1200_BIST
art_hssp_512x20_bist artisan_ssp(
`else
art_hssp_512x20 artisan_ssp(
`endif
`endif
`ifdef OR1200_BIST
// RAM BIST
.mbist_si_i(mbist_si_i),
.mbist_so_o(mbist_so_o),
.mbist_ctrl_i(mbist_ctrl_i),
`endif
.CLK(clk),
.CEN(~ce),
.WEN(~we),
.A(addr),
.D(di),
.OEN(~oe),
.Q(do)
);
 
`else
 
`ifdef OR1200_AVANT_ATP
 
//
// Instantiation of ASIC memory:
//
// Avant! Asynchronous Two-Port RAM
//
avant_atp avant_atp(
.web(~we),
.reb(),
.oeb(~oe),
.rcsb(),
.wcsb(),
.ra(addr),
.wa(addr),
.di(di),
.do(do)
);
 
`else
 
`ifdef OR1200_VIRAGE_SSP
 
//
// Instantiation of ASIC memory:
//
// Virage Synchronous 1-port R/W RAM
//
virage_ssp virage_ssp(
.clk(clk),
.adr(addr),
.d(di),
.we(we),
.oe(oe),
.me(ce),
.q(do)
);
 
`else
 
`ifdef OR1200_VIRTUALSILICON_SSP
 
//
// Instantiation of ASIC memory:
//
// Virtual Silicon Single-Port Synchronous SRAM
//
`ifdef UNUSED
vs_hdsp_512x20 #(1<<aw, aw-1, dw-1) vs_ssp(
`else
`ifdef OR1200_BIST
vs_hdsp_512x20_bist vs_ssp(
`else
vs_hdsp_512x20 vs_ssp(
`endif
`endif
`ifdef OR1200_BIST
// RAM BIST
.mbist_si_i(mbist_si_i),
.mbist_so_o(mbist_so_o),
.mbist_ctrl_i(mbist_ctrl_i),
`endif
.CK(clk),
.ADR(addr),
.DI(di),
.WEN(~we),
.CEN(~ce),
.OEN(~oe),
.DOUT(do)
);
 
`else
 
`ifdef OR1200_XILINX_RAMB4
 
//
// Instantiation of FPGA memory:
//
// Virtex/Spartan2
//
 
//
// Block 0
//
RAMB4_S8 ramb4_s8_0(
.CLK(clk),
.RST(rst),
.ADDR(addr),
.DI(di[7:0]),
.EN(ce),
.WE(we),
.DO(do[7:0])
);
 
//
// Block 1
//
RAMB4_S8 ramb4_s8_1(
.CLK(clk),
.RST(rst),
.ADDR(addr),
.DI(di[15:8]),
.EN(ce),
.WE(we),
.DO(do[15:8])
);
 
//
// Block 2
//
RAMB4_S8 ramb4_s8_2(
.CLK(clk),
.RST(rst),
.ADDR(addr),
.DI({4'b0000, di[19:16]}),
.EN(ce),
.WE(we),
.DO({unconnected, do[19:16]})
);
 
`else
 
`ifdef OR1200_ALTERA_LPM
 
//
// Instantiation of FPGA memory:
//
// Altera LPM
//
// Added By Jamil Khatib
//
 
wire wr;
 
assign wr = ce & we;
 
initial $display("Using Altera LPM.");
 
lpm_ram_dq lpm_ram_dq_component (
.address(addr),
.inclock(clk),
.outclock(clk),
.data(di),
.we(wr),
.q(do)
);
 
defparam lpm_ram_dq_component.lpm_width = dw,
lpm_ram_dq_component.lpm_widthad = aw,
lpm_ram_dq_component.lpm_indata = "REGISTERED",
lpm_ram_dq_component.lpm_address_control = "REGISTERED",
lpm_ram_dq_component.lpm_outdata = "UNREGISTERED",
lpm_ram_dq_component.lpm_hint = "USE_EAB=ON";
// examplar attribute lpm_ram_dq_component NOOPT TRUE
 
`else
 
//
// Generic single-port synchronous RAM model
//
 
//
// Generic RAM's registers and wires
//
reg [dw-1:0] mem [(1<<aw)-1:0]; // RAM content
reg [dw-1:0] do_reg; // RAM data output register
 
//
// Data output drivers
//
assign do = (oe) ? do_reg : {dw{1'b0}};
 
//
// RAM read and write
//
always @(posedge clk)
if (ce && !we)
do_reg <= #1 mem[addr];
else if (ce && we)
mem[addr] <= #1 di;
 
`endif // !OR1200_ALTERA_LPM
`endif // !OR1200_XILINX_RAMB4_S16
`endif // !OR1200_VIRTUALSILICON_SSP
`endif // !OR1200_VIRAGE_SSP
`endif // !OR1200_AVANT_ATP
`endif // !OR1200_ARTISAN_SSP
 
endmodule
/tags/rel_26/or1200/rtl/verilog/or1200_iwb_biu.v
0,0 → 1,512
//////////////////////////////////////////////////////////////////////
//// ////
//// OR1200's WISHBONE BIU ////
//// ////
//// This file is part of the OpenRISC 1200 project ////
//// http://www.opencores.org/cores/or1k/ ////
//// ////
//// Description ////
//// Implements WISHBONE interface ////
//// ////
//// To Do: ////
//// - if biu_cyc/stb are deasserted and wb_ack_i is asserted ////
//// and this happens even before aborted_r is asssrted, ////
//// wb_ack_i will be delivered even though transfer is ////
//// internally considered already aborted. However most ////
//// wb_ack_i are externally registered and delayed. Normally ////
//// this shouldn't cause any problems. ////
//// ////
//// Author(s): ////
//// - Damjan Lampret, lampret@opencores.org ////
//// ////
//////////////////////////////////////////////////////////////////////
//// ////
//// Copyright (C) 2000 Authors and OPENCORES.ORG ////
//// ////
//// This source file may be used and distributed without ////
//// restriction provided that this copyright statement is not ////
//// removed from the file and that any derivative work contains ////
//// the original copyright notice and the associated disclaimer. ////
//// ////
//// This source file is free software; you can redistribute it ////
//// and/or modify it under the terms of the GNU Lesser General ////
//// Public License as published by the Free Software Foundation; ////
//// either version 2.1 of the License, or (at your option) any ////
//// later version. ////
//// ////
//// This source is distributed in the hope that it will be ////
//// useful, but WITHOUT ANY WARRANTY; without even the implied ////
//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR ////
//// PURPOSE. See the GNU Lesser General Public License for more ////
//// details. ////
//// ////
//// You should have received a copy of the GNU Lesser General ////
//// Public License along with this source; if not, download it ////
//// from http://www.opencores.org/lgpl.shtml ////
//// ////
//////////////////////////////////////////////////////////////////////
//
// CVS Revision History
//
// $Log: not supported by cvs2svn $
// Revision 1.6.4.1 2003/07/08 15:36:37 lampret
// Added embedded memory QMEM.
//
// Revision 1.6 2003/04/07 20:57:46 lampret
// Fixed OR1200_CLKDIV_x_SUPPORTED defines. Fixed order of ifdefs.
//
// Revision 1.5 2002/12/08 08:57:56 lampret
// Added optional support for WB B3 specification (xwb_cti_o, xwb_bte_o). Made xwb_cab_o optional.
//
// Revision 1.4 2002/09/16 03:09:16 lampret
// Fixed a combinational loop.
//
// Revision 1.3 2002/08/12 05:31:37 lampret
// Added optional retry counter for wb_rty_i. Added graceful termination for aborted transfers.
//
// Revision 1.2 2002/07/14 22:17:17 lampret
// Added simple trace buffer [only for Xilinx Virtex target]. Fixed instruction fetch abort when new exception is recognized.
//
// Revision 1.1 2002/01/03 08:16:15 lampret
// New prefixes for RTL files, prefixed module names. Updated cache controllers and MMUs.
//
// Revision 1.12 2001/11/22 13:42:51 lampret
// Added wb_cyc_o assignment after it was removed by accident.
//
// Revision 1.11 2001/11/20 21:28:10 lampret
// Added optional sampling of inputs.
//
// Revision 1.10 2001/11/18 11:32:00 lampret
// OR1200_REGISTERED_OUTPUTS can now be enabled.
//
// Revision 1.9 2001/10/21 17:57:16 lampret
// Removed params from generic_XX.v. Added translate_off/on in sprs.v and id.v. Removed spr_addr from dc.v and ic.v. Fixed CR+LF.
//
// Revision 1.8 2001/10/14 13:12:10 lampret
// MP3 version.
//
// Revision 1.1.1.1 2001/10/06 10:18:35 igorm
// no message
//
// Revision 1.3 2001/08/09 13:39:33 lampret
// Major clean-up.
//
// Revision 1.2 2001/07/22 03:31:54 lampret
// Fixed RAM's oen bug. Cache bypass under development.
//
// Revision 1.1 2001/07/20 00:46:23 lampret
// Development version of RTL. Libraries are missing.
//
//
 
// synopsys translate_off
`include "timescale.v"
// synopsys translate_on
`include "or1200_defines.v"
 
module or1200_iwb_biu(
// RISC clock, reset and clock control
clk, rst, clmode,
 
// WISHBONE interface
wb_clk_i, wb_rst_i, wb_ack_i, wb_err_i, wb_rty_i, wb_dat_i,
wb_cyc_o, wb_adr_o, wb_stb_o, wb_we_o, wb_sel_o, wb_dat_o,
`ifdef OR1200_WB_CAB
wb_cab_o,
`endif
`ifdef OR1200_WB_B3
wb_cti_o, wb_bte_o,
`endif
 
// Internal RISC bus
biu_dat_i, biu_adr_i, biu_cyc_i, biu_stb_i, biu_we_i, biu_sel_i, biu_cab_i,
biu_dat_o, biu_ack_o, biu_err_o
);
 
parameter dw = `OR1200_OPERAND_WIDTH;
parameter aw = `OR1200_OPERAND_WIDTH;
 
//
// RISC clock, reset and clock control
//
input clk; // RISC clock
input rst; // RISC reset
input [1:0] clmode; // 00 WB=RISC, 01 WB=RISC/2, 10 N/A, 11 WB=RISC/4
 
//
// WISHBONE interface
//
input wb_clk_i; // clock input
input wb_rst_i; // reset input
input wb_ack_i; // normal termination
input wb_err_i; // termination w/ error
input wb_rty_i; // termination w/ retry
input [dw-1:0] wb_dat_i; // input data bus
output wb_cyc_o; // cycle valid output
output [aw-1:0] wb_adr_o; // address bus outputs
output wb_stb_o; // strobe output
output wb_we_o; // indicates write transfer
output [3:0] wb_sel_o; // byte select outputs
output [dw-1:0] wb_dat_o; // output data bus
`ifdef OR1200_WB_CAB
output wb_cab_o; // consecutive address burst
`endif
`ifdef OR1200_WB_B3
output [2:0] wb_cti_o; // cycle type identifier
output [1:0] wb_bte_o; // burst type extension
`endif
 
//
// Internal RISC interface
//
input [dw-1:0] biu_dat_i; // input data bus
input [aw-1:0] biu_adr_i; // address bus
input biu_cyc_i; // WB cycle
input biu_stb_i; // WB strobe
input biu_we_i; // WB write enable
input biu_cab_i; // CAB input
input [3:0] biu_sel_i; // byte selects
output [31:0] biu_dat_o; // output data bus
output biu_ack_o; // ack output
output biu_err_o; // err output
 
//
// Registers
//
reg [1:0] valid_div; // Used for synchronization
`ifdef OR1200_REGISTERED_OUTPUTS
reg [aw-1:0] wb_adr_o; // address bus outputs
reg wb_cyc_o; // cycle output
reg wb_stb_o; // strobe output
reg wb_we_o; // indicates write transfer
reg [3:0] wb_sel_o; // byte select outputs
`ifdef OR1200_WB_CAB
reg wb_cab_o; // CAB output
`endif
`ifdef OR1200_WB_B3
reg [1:0] burst_len; // burst counter
reg [2:0] wb_cti_o; // cycle type identifier
`endif
reg [dw-1:0] wb_dat_o; // output data bus
`endif
`ifdef OR1200_REGISTERED_INPUTS
reg long_ack_o; // normal termination
reg long_err_o; // error termination
reg [dw-1:0] biu_dat_o; // output data bus
`else
wire long_ack_o; // normal termination
wire long_err_o; // error termination
`endif
wire aborted; // Graceful abort
reg aborted_r; // Graceful abort
wire retry; // Retry
`ifdef OR1200_WB_RETRY
reg [`OR1200_WB_RETRY-1:0] retry_cntr; // Retry counter
`endif
reg previous_complete;
wire same_addr;
wire repeated_access;
reg repeated_access_ack;
reg [dw-1:0] wb_dat_r; // saved previous data read
 
//
// WISHBONE I/F <-> Internal RISC I/F conversion
//
 
//
// Address bus
//
`ifdef OR1200_REGISTERED_OUTPUTS
always @(posedge wb_clk_i or posedge wb_rst_i)
if (wb_rst_i)
wb_adr_o <= #1 {aw{1'b0}};
else if ((biu_cyc_i & biu_stb_i) & ~wb_ack_i & ~aborted & ~(wb_stb_o & ~wb_ack_i) | biu_cab_i)
wb_adr_o <= #1 biu_adr_i;
`else
assign wb_adr_o = biu_adr_i;
`endif
 
//
// Same access as previous one, store previous read data
//
assign same_addr = wb_adr_o == biu_adr_i;
assign repeated_access = same_addr & previous_complete;
always @(posedge wb_clk_i or posedge wb_rst_i)
if (wb_rst_i)
wb_dat_r <= #1 32'h0000_0000;
else if (wb_ack_i)
wb_dat_r <= #1 wb_dat_i;
always @(posedge wb_clk_i or posedge wb_rst_i)
if (wb_rst_i)
repeated_access_ack <= #1 1'b0;
else if (repeated_access & biu_cyc_i & biu_stb_i)
repeated_access_ack <= #1 1'b1;
else
repeated_access_ack <= #1 1'b0;
 
//
// Previous access completed
//
always @(posedge wb_clk_i or posedge wb_rst_i)
if (wb_rst_i)
previous_complete <= #1 1'b0;
else if (wb_ack_i & biu_cyc_i & biu_stb_i)
previous_complete <= #1 1'b1;
else if ((biu_cyc_i & biu_stb_i) & ~wb_ack_i & ~aborted & ~(wb_stb_o & ~wb_ack_i))
previous_complete <= #1 1'b0;
 
//
// Input data bus
//
`ifdef OR1200_REGISTERED_INPUTS
always @(posedge wb_clk_i or posedge wb_rst_i)
if (wb_rst_i)
biu_dat_o <= #1 32'h0000_0000;
else if (wb_ack_i)
biu_dat_o <= #1 wb_dat_i;
`else
assign biu_dat_o = repeated_access_ack ? wb_dat_r : wb_dat_i;
`endif
 
//
// Output data bus
//
`ifdef OR1200_REGISTERED_OUTPUTS
always @(posedge wb_clk_i or posedge wb_rst_i)
if (wb_rst_i)
wb_dat_o <= #1 {dw{1'b0}};
else if ((biu_cyc_i & biu_stb_i) & ~wb_ack_i & ~aborted)
wb_dat_o <= #1 biu_dat_i;
`else
assign wb_dat_o = biu_dat_i;
`endif
 
//
// Valid_div counts RISC clock cycles by modulo 4
// and is used to synchronize external WB i/f to
// RISC clock
//
always @(posedge clk or posedge rst)
if (rst)
valid_div <= #1 2'b0;
else
valid_div <= #1 valid_div + 1'd1;
 
//
// biu_ack_o is one RISC clock cycle long long_ack_o.
// long_ack_o is one, two or four RISC clock cycles long because
// WISHBONE can work at 1, 1/2 or 1/4 RISC clock.
//
assign biu_ack_o = (repeated_access_ack | long_ack_o) & ~aborted_r
`ifdef OR1200_CLKDIV_2_SUPPORTED
& (valid_div[0] | ~clmode[0])
`ifdef OR1200_CLKDIV_4_SUPPORTED
& (valid_div[1] | ~clmode[1])
`endif
`endif
;
 
//
// Acknowledgment of the data to the RISC
//
// long_ack_o
//
`ifdef OR1200_REGISTERED_INPUTS
always @(posedge wb_clk_i or posedge wb_rst_i)
if (wb_rst_i)
long_ack_o <= #1 1'b0;
else
long_ack_o <= #1 wb_ack_i & ~aborted;
`else
assign long_ack_o = wb_ack_i;
`endif
 
//
// biu_err_o is one RISC clock cycle long long_err_o.
// long_err_o is one, two or four RISC clock cycles long because
// WISHBONE can work at 1, 1/2 or 1/4 RISC clock.
//
assign biu_err_o = long_err_o
`ifdef OR1200_CLKDIV_2_SUPPORTED
& (valid_div[0] | ~clmode[0])
`ifdef OR1200_CLKDIV_4_SUPPORTED
& (valid_div[1] | ~clmode[1])
`endif
`endif
;
 
//
// Error termination
//
// long_err_o
//
`ifdef OR1200_REGISTERED_INPUTS
always @(posedge wb_clk_i or posedge wb_rst_i)
if (wb_rst_i)
long_err_o <= #1 1'b0;
else
long_err_o <= #1 wb_err_i & ~aborted;
`else
assign long_err_o = wb_err_i & ~aborted_r;
`endif
 
//
// Retry counter
//
// Assert 'retry' when 'wb_rty_i' is sampled high and keep it high
// until retry counter doesn't expire
//
`ifdef OR1200_WB_RETRY
assign retry = wb_rty_i | (|retry_cntr);
`else
assign retry = 1'b0;
`endif
`ifdef OR1200_WB_RETRY
always @(posedge wb_clk_i or posedge wb_rst_i)
if (wb_rst_i)
retry_cntr <= #1 1'b0;
else if (wb_rty_i)
retry_cntr <= #1 {`OR1200_WB_RETRY{1'b1}};
else if (retry_cntr)
retry_cntr <= #1 retry_cntr - 7'd1;
`endif
 
//
// Graceful completion of aborted transfers
//
// Assert 'aborted' when 1) current transfer is in progress (wb_stb_o; which
// we know is only asserted together with wb_cyc_o) 2) and in next WB clock cycle
// wb_stb_o would be deasserted (biu_cyc_i and biu_stb_i are low) 3) and
// there is no termination of current transfer in this WB clock cycle (wb_ack_i
// and wb_err_i are low).
// 'aborted_r' is registered 'aborted' and extended until this "aborted" transfer
// is properly terminated with wb_ack_i/wb_err_i.
//
assign aborted = wb_stb_o & ~(biu_cyc_i & biu_stb_i) & ~(wb_ack_i | wb_err_i);
always @(posedge wb_clk_i or posedge wb_rst_i)
if (wb_rst_i)
aborted_r <= #1 1'b0;
else if (wb_ack_i | wb_err_i)
aborted_r <= #1 1'b0;
else if (aborted)
aborted_r <= #1 1'b1;
 
//
// WB cyc_o
//
// Either 1) normal transfer initiated by biu_cyc_i (and biu_cab_i if
// bursts are enabled) and possibly suspended by 'retry'
// or 2) extended "aborted" transfer
//
`ifdef OR1200_REGISTERED_OUTPUTS
always @(posedge wb_clk_i or posedge wb_rst_i)
if (wb_rst_i)
wb_cyc_o <= #1 1'b0;
else
`ifdef OR1200_NO_BURSTS
wb_cyc_o <= #1 biu_cyc_i & ~wb_ack_i & ~retry & ~repeated_access | aborted & ~wb_ack_i;
`else
wb_cyc_o <= #1 biu_cyc_i & ~wb_ack_i & ~retry & ~repeated_access | biu_cab_i | aborted & ~wb_ack_i;
`endif
`else
`ifdef OR1200_NO_BURSTS
assign wb_cyc_o = biu_cyc_i & ~retry;
`else
assign wb_cyc_o = biu_cyc_i | biu_cab_i & ~retry;
`endif
`endif
 
//
// WB stb_o
//
`ifdef OR1200_REGISTERED_OUTPUTS
always @(posedge wb_clk_i or posedge wb_rst_i)
if (wb_rst_i)
wb_stb_o <= #1 1'b0;
else
wb_stb_o <= #1 (biu_cyc_i & biu_stb_i) & ~wb_ack_i & ~retry & ~repeated_access | aborted & ~wb_ack_i;
`else
assign wb_stb_o = biu_cyc_i & biu_stb_i;
`endif
 
//
// WB we_o
//
`ifdef OR1200_REGISTERED_OUTPUTS
always @(posedge wb_clk_i or posedge wb_rst_i)
if (wb_rst_i)
wb_we_o <= #1 1'b0;
else
wb_we_o <= #1 biu_cyc_i & biu_stb_i & biu_we_i | aborted & wb_we_o;
`else
assign wb_we_o = biu_cyc_i & biu_stb_i & biu_we_i;
`endif
 
//
// WB sel_o
//
`ifdef OR1200_REGISTERED_OUTPUTS
always @(posedge wb_clk_i or posedge wb_rst_i)
if (wb_rst_i)
wb_sel_o <= #1 4'b0000;
else
wb_sel_o <= #1 biu_sel_i;
`else
assign wb_sel_o = biu_sel_i;
`endif
 
`ifdef OR1200_WB_CAB
//
// WB cab_o
//
`ifdef OR1200_REGISTERED_OUTPUTS
always @(posedge wb_clk_i or posedge wb_rst_i)
if (wb_rst_i)
wb_cab_o <= #1 1'b0;
else
wb_cab_o <= #1 biu_cab_i;
`else
assign wb_cab_o = biu_cab_i;
`endif
`endif
 
`ifdef OR1200_WB_B3
//
// Count burst beats
//
always @(posedge wb_clk_i or posedge wb_rst_i)
if (wb_rst_i)
burst_len <= #1 2'b00;
else if (biu_cab_i && burst_len && wb_ack_i)
burst_len <= #1 burst_len - 1'b1;
else if (~biu_cab_i)
burst_len <= #1 2'b11;
 
//
// WB cti_o
//
`ifdef OR1200_REGISTERED_OUTPUTS
always @(posedge wb_clk_i or posedge wb_rst_i)
if (wb_rst_i)
wb_cti_o <= #1 3'b000; // classic cycle
`ifdef OR1200_NO_BURSTS
else
wb_cti_o <= #1 3'b111; // end-of-burst
`else
else if (biu_cab_i && burst_len[1])
wb_cti_o <= #1 3'b010; // incrementing burst cycle
else if (biu_cab_i && wb_ack_i)
wb_cti_o <= #1 3'b111; // end-of-burst
`endif // OR1200_NO_BURSTS
`else
Unsupported !!!;
`endif
 
//
// WB bte_o
//
assign wb_bte_o = 2'b01; // 4-beat wrap burst
 
`endif // OR1200_WB_B3
 
endmodule
/tags/rel_26/or1200/rtl/verilog/or1200_spram_2048x32_bw.v
0,0 → 1,576
//////////////////////////////////////////////////////////////////////
//// ////
//// Generic Single-Port Synchronous RAM with byte write signals ////
//// ////
//// This file is part of memory library available from ////
//// http://www.opencores.org/cvsweb.shtml/generic_memories/ ////
//// ////
//// Description ////
//// This block is a wrapper with common single-port ////
//// synchronous memory interface for different ////
//// types of ASIC and FPGA RAMs. Beside universal memory ////
//// interface it also provides behavioral model of generic ////
//// single-port synchronous RAM. ////
//// It should be used in all OPENCORES designs that want to be ////
//// portable accross different target technologies and ////
//// independent of target memory. ////
//// ////
//// Supported ASIC RAMs are: ////
//// - Artisan Single-Port Sync RAM ////
//// - Avant! Two-Port Sync RAM (*) ////
//// - Virage Single-Port Sync RAM ////
//// - Virtual Silicon Single-Port Sync RAM ////
//// ////
//// Supported FPGA RAMs are: ////
//// - Xilinx Virtex RAMB4_S16 ////
//// - Altera LPM ////
//// ////
//// To Do: ////
//// - xilinx rams need external tri-state logic ////
//// - fix avant! two-port ram ////
//// - add additional RAMs ////
//// ////
//// Author(s): ////
//// - Damjan Lampret, lampret@opencores.org ////
//// ////
//////////////////////////////////////////////////////////////////////
//// ////
//// Copyright (C) 2000 Authors and OPENCORES.ORG ////
//// ////
//// This source file may be used and distributed without ////
//// restriction provided that this copyright statement is not ////
//// removed from the file and that any derivative work contains ////
//// the original copyright notice and the associated disclaimer. ////
//// ////
//// This source file is free software; you can redistribute it ////
//// and/or modify it under the terms of the GNU Lesser General ////
//// Public License as published by the Free Software Foundation; ////
//// either version 2.1 of the License, or (at your option) any ////
//// later version. ////
//// ////
//// This source is distributed in the hope that it will be ////
//// useful, but WITHOUT ANY WARRANTY; without even the implied ////
//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR ////
//// PURPOSE. See the GNU Lesser General Public License for more ////
//// details. ////
//// ////
//// You should have received a copy of the GNU Lesser General ////
//// Public License along with this source; if not, download it ////
//// from http://www.opencores.org/lgpl.shtml ////
//// ////
//////////////////////////////////////////////////////////////////////
//
// CVS Revision History
//
// $Log: not supported by cvs2svn $
// Revision 1.2 2003/09/12 09:03:54 dries
// correct all the syntax errors
//
// Revision 1.1 2003/08/26 09:37:02 simons
// Added support for rams with byte write access.
//
//
 
// synopsys translate_off
`include "timescale.v"
// synopsys translate_on
`include "or1200_defines.v"
 
module or1200_spram_2048x32_bw(
`ifdef OR1200_BIST
// RAM BIST
mbist_si_i, mbist_so_o, mbist_ctrl_i,
`endif
// Generic synchronous single-port RAM interface
clk, rst, ce, we, oe, addr, di, do
);
 
`ifdef OR1200_BIST
//
// RAM BIST
//
input mbist_si_i;
input [`OR1200_MBIST_CTRL_WIDTH - 1:0] mbist_ctrl_i; // bist chain shift control
output mbist_so_o;
`endif
 
//
// Generic synchronous single-port RAM interface
//
input clk; // Clock
input rst; // Reset
input ce; // Chip enable input
input [3:0] we; // Write enable input
input oe; // Output enable input
input [10:0] addr; // address bus inputs
input [31:0] di; // input data bus
output [31:0] do; // output data bus
 
//
// Internal wires and registers
//
 
`ifdef OR1200_ARTISAN_SSP
`else
`ifdef OR1200_VIRTUALSILICON_SSP
`else
`ifdef OR1200_BIST
assign mbist_so_o = mbist_si_i;
`endif
`endif
`endif
 
 
`ifdef OR1200_ARTISAN_SSP
 
//
// Instantiation of ASIC memory:
//
// Artisan Synchronous Single-Port RAM (ra1sh)
//
`ifdef UNUSED
art_hssp_2048x32_bw artisan_ssp(
`else
`ifdef OR1200_BIST
art_hssp_2048x32_bw_bist artisan_ssp(
`else
art_hssp_2048x32_bw artisan_ssp(
`endif
`endif
`ifdef OR1200_BIST
// RAM BIST
.mbist_si_i(mbist_si_i),
.mbist_so_o(mbist_so_o),
.mbist_ctrl_i(mbist_ctrl_i),
`endif
.CLK(clk),
.CEN(~ce),
.WEN(~we),
.A(addr),
.D(di),
.OEN(~oe),
.Q(do)
);
 
`else
 
`ifdef OR1200_AVANT_ATP
 
//
// Instantiation of ASIC memory:
//
// Avant! Asynchronous Two-Port RAM
//
avant_atp avant_atp(
.web(~we),
.reb(),
.oeb(~oe),
.rcsb(),
.wcsb(),
.ra(addr),
.wa(addr),
.di(di),
.do(do)
);
 
`else
 
`ifdef OR1200_VIRAGE_SSP
 
//
// Instantiation of ASIC memory:
//
// Virage Synchronous 1-port R/W RAM
//
virage_ssp virage_ssp(
.clk(clk),
.adr(addr),
.d(di),
.we(we),
.oe(oe),
.me(ce),
.q(do)
);
 
`else
 
`ifdef OR1200_VIRTUALSILICON_SSP
 
//
// Instantiation of ASIC memory:
//
// Virtual Silicon Single-Port Synchronous SRAM
//
`ifdef OR1200_BIST
wire mbist_si_i_ram_0;
wire mbist_si_i_ram_1;
wire mbist_si_i_ram_2;
wire mbist_si_i_ram_3;
wire mbist_so_o_ram_0;
wire mbist_so_o_ram_1;
wire mbist_so_o_ram_2;
wire mbist_so_o_ram_3;
assign mbist_si_i_ram_0 = mbist_si_i;
assign mbist_si_i_ram_1 = mbist_so_o_ram_0;
assign mbist_si_i_ram_2 = mbist_so_o_ram_1;
assign mbist_si_i_ram_3 = mbist_so_o_ram_2;
assign mbist_so_o = mbist_so_o_ram_3;
`endif
 
`ifdef UNUSED
vs_hdsp_2048x8 vs_ssp_0(
`else
`ifdef OR1200_BIST
vs_hdsp_2048x8_bist vs_ssp_0(
`else
vs_hdsp_2048x8 vs_ssp_0(
`endif
`endif
`ifdef OR1200_BIST
// RAM BIST
.mbist_si_i(mbist_si_i_ram_0),
.mbist_so_o(mbist_so_o_ram_0),
.mbist_ctrl_i(mbist_ctrl_i),
`endif
.CK(clk),
.ADR(addr),
.DI(di[7:0]),
.WEN(~we[0]),
.CEN(~ce),
.OEN(~oe),
.DOUT(do[7:0])
);
 
`ifdef UNUSED
vs_hdsp_2048x8 vs_ssp_1(
`else
`ifdef OR1200_BIST
vs_hdsp_2048x8_bist vs_ssp_1(
`else
vs_hdsp_2048x8 vs_ssp_1(
`endif
`endif
`ifdef OR1200_BIST
// RAM BIST
.mbist_si_i(mbist_si_i_ram_1),
.mbist_so_o(mbist_so_o_ram_1),
.mbist_ctrl_i(mbist_ctrl_i),
`endif
.CK(clk),
.ADR(addr),
.DI(di[15:8]),
.WEN(~we[1]),
.CEN(~ce),
.OEN(~oe),
.DOUT(do[15:8])
);
 
`ifdef UNUSED
vs_hdsp_2048x8 vs_ssp_2(
`else
`ifdef OR1200_BIST
vs_hdsp_2048x8_bist vs_ssp_2(
`else
vs_hdsp_2048x8 vs_ssp_2(
`endif
`endif
`ifdef OR1200_BIST
// RAM BIST
.mbist_si_i(mbist_si_i_ram_2),
.mbist_so_o(mbist_so_o_ram_2),
.mbist_ctrl_i(mbist_ctrl_i),
`endif
.CK(clk),
.ADR(addr),
.DI(di[23:16]),
.WEN(~we[2]),
.CEN(~ce),
.OEN(~oe),
.DOUT(do[23:16])
);
 
`ifdef UNUSED
vs_hdsp_2048x8 vs_ssp_3(
`else
`ifdef OR1200_BIST
vs_hdsp_2048x8_bist vs_ssp_3(
`else
vs_hdsp_2048x8 vs_ssp_3(
`endif
`endif
`ifdef OR1200_BIST
// RAM BIST
.mbist_si_i(mbist_si_i_ram_3),
.mbist_so_o(mbist_so_o_ram_3),
.mbist_ctrl_i(mbist_ctrl_i),
`endif
.CK(clk),
.ADR(addr),
.DI(di[31:24]),
.WEN(~we[3]),
.CEN(~ce),
.OEN(~oe),
.DOUT(do[31:24])
);
 
`else
 
`ifdef OR1200_XILINX_RAMB4
 
//
// Instantiation of FPGA memory:
//
// Virtex/Spartan2
//
 
//
// Block 0
//
RAMB4_S2 ramb4_s2_0(
.CLK(clk),
.RST(rst),
.ADDR(addr),
.DI(di[1:0]),
.EN(ce),
.WE(we[0]),
.DO(do[1:0])
);
 
//
// Block 1
//
RAMB4_S2 ramb4_s2_1(
.CLK(clk),
.RST(rst),
.ADDR(addr),
.DI(di[3:2]),
.EN(ce),
.WE(we[0]),
.DO(do[3:2])
);
 
//
// Block 2
//
RAMB4_S2 ramb4_s2_2(
.CLK(clk),
.RST(rst),
.ADDR(addr),
.DI(di[5:4]),
.EN(ce),
.WE(we[0]),
.DO(do[5:4])
);
 
//
// Block 3
//
RAMB4_S2 ramb4_s2_3(
.CLK(clk),
.RST(rst),
.ADDR(addr),
.DI(di[7:6]),
.EN(ce),
.WE(we[0]),
.DO(do[7:6])
);
//
// Block 4
//
RAMB4_S2 ramb4_s2_4(
.CLK(clk),
.RST(rst),
.ADDR(addr),
.DI(di[9:8]),
.EN(ce),
.WE(we[1]),
.DO(do[9:8])
);
 
//
// Block 5
//
RAMB4_S2 ramb4_s2_5(
.CLK(clk),
.RST(rst),
.ADDR(addr),
.DI(di[11:10]),
.EN(ce),
.WE(we[1]),
.DO(do[11:10])
);
 
//
// Block 6
//
RAMB4_S2 ramb4_s2_6(
.CLK(clk),
.RST(rst),
.ADDR(addr),
.DI(di[13:12]),
.EN(ce),
.WE(we[1]),
.DO(do[13:12])
);
 
//
// Block 7
//
RAMB4_S2 ramb4_s2_7(
.CLK(clk),
.RST(rst),
.ADDR(addr),
.DI(di[15:14]),
.EN(ce),
.WE(we[1]),
.DO(do[15:14])
);
//
// Block 8
//
RAMB4_S2 ramb4_s2_8(
.CLK(clk),
.RST(rst),
.ADDR(addr),
.DI(di[17:16]),
.EN(ce),
.WE(we[2]),
.DO(do[17:16])
);
 
//
// Block 9
//
RAMB4_S2 ramb4_s2_9(
.CLK(clk),
.RST(rst),
.ADDR(addr),
.DI(di[19:18]),
.EN(ce),
.WE(we[2]),
.DO(do[19:18])
);
 
//
// Block 10
//
RAMB4_S2 ramb4_s2_10(
.CLK(clk),
.RST(rst),
.ADDR(addr),
.DI(di[21:20]),
.EN(ce),
.WE(we[2]),
.DO(do[21:20])
);
 
//
// Block 11
//
RAMB4_S2 ramb4_s2_11(
.CLK(clk),
.RST(rst),
.ADDR(addr),
.DI(di[23:22]),
.EN(ce),
.WE(we[2]),
.DO(do[23:22])
);
//
// Block 12
//
RAMB4_S2 ramb4_s2_12(
.CLK(clk),
.RST(rst),
.ADDR(addr),
.DI(di[25:24]),
.EN(ce),
.WE(we[3]),
.DO(do[25:24])
);
 
//
// Block 13
//
RAMB4_S2 ramb4_s2_13(
.CLK(clk),
.RST(rst),
.ADDR(addr),
.DI(di[27:26]),
.EN(ce),
.WE(we[3]),
.DO(do[27:26])
);
 
//
// Block 14
//
RAMB4_S2 ramb4_s2_14(
.CLK(clk),
.RST(rst),
.ADDR(addr),
.DI(di[29:28]),
.EN(ce),
.WE(we[3]),
.DO(do[29:28])
);
 
//
// Block 15
//
RAMB4_S2 ramb4_s2_15(
.CLK(clk),
.RST(rst),
.ADDR(addr),
.DI(di[31:30]),
.EN(ce),
.WE(we[3]),
.DO(do[31:30])
);
 
`else
 
//
// Generic single-port synchronous RAM model
//
 
//
// Generic RAM's registers and wires
//
reg [31:0] mem_0 [10:0]; // RAM content
reg [31:0] mem_1 [10:0]; // RAM content
reg [31:0] mem_2 [10:0]; // RAM content
reg [31:0] mem_3 [10:0]; // RAM content
reg [31:0] do_reg; // RAM data output register
 
//
// Data output drivers
//
assign do = (oe) ? do_reg : {32{1'b0}};
 
//
// RAM read and write
//
always @(posedge clk)
if (ce && !we) begin
do_reg[7:0] <= #1 mem_0[addr];
do_reg[15:8] <= #1 mem_1[addr];
do_reg[23:16] <= #1 mem_2[addr];
do_reg[31:24] <= #1 mem_3[addr];
end
else if (ce && we[0])
mem_0[addr] <= #1 di[7:0];
else if (ce && we[1])
mem_1[addr] <= #1 di[15:8];
else if (ce && we[2])
mem_2[addr] <= #1 di[23:16];
else if (ce && we[3])
mem_3[addr] <= #1 di[31:24];
 
`endif // !OR1200_XILINX_RAMB4_S16
`endif // !OR1200_VIRTUALSILICON_SSP
`endif // !OR1200_VIRAGE_SSP
`endif // !OR1200_AVANT_ATP
`endif // !OR1200_ARTISAN_SSP
 
endmodule
/tags/rel_26/or1200/rtl/verilog/or1200_spram_1024x32_bw.v
0,0 → 1,472
//////////////////////////////////////////////////////////////////////
//// ////
//// Generic Single-Port Synchronous RAM with byte write signals ////
//// ////
//// This file is part of memory library available from ////
//// http://www.opencores.org/cvsweb.shtml/generic_memories/ ////
//// ////
//// Description ////
//// This block is a wrapper with common single-port ////
//// synchronous memory interface for different ////
//// types of ASIC and FPGA RAMs. Beside universal memory ////
//// interface it also provides behavioral model of generic ////
//// single-port synchronous RAM. ////
//// It should be used in all OPENCORES designs that want to be ////
//// portable accross different target technologies and ////
//// independent of target memory. ////
//// ////
//// Supported ASIC RAMs are: ////
//// - Artisan Single-Port Sync RAM ////
//// - Avant! Two-Port Sync RAM (*) ////
//// - Virage Single-Port Sync RAM ////
//// - Virtual Silicon Single-Port Sync RAM ////
//// ////
//// Supported FPGA RAMs are: ////
//// - Xilinx Virtex RAMB4_S16 ////
//// - Altera LPM ////
//// ////
//// To Do: ////
//// - xilinx rams need external tri-state logic ////
//// - fix avant! two-port ram ////
//// - add additional RAMs ////
//// ////
//// Author(s): ////
//// - Damjan Lampret, lampret@opencores.org ////
//// ////
//////////////////////////////////////////////////////////////////////
//// ////
//// Copyright (C) 2000 Authors and OPENCORES.ORG ////
//// ////
//// This source file may be used and distributed without ////
//// restriction provided that this copyright statement is not ////
//// removed from the file and that any derivative work contains ////
//// the original copyright notice and the associated disclaimer. ////
//// ////
//// This source file is free software; you can redistribute it ////
//// and/or modify it under the terms of the GNU Lesser General ////
//// Public License as published by the Free Software Foundation; ////
//// either version 2.1 of the License, or (at your option) any ////
//// later version. ////
//// ////
//// This source is distributed in the hope that it will be ////
//// useful, but WITHOUT ANY WARRANTY; without even the implied ////
//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR ////
//// PURPOSE. See the GNU Lesser General Public License for more ////
//// details. ////
//// ////
//// You should have received a copy of the GNU Lesser General ////
//// Public License along with this source; if not, download it ////
//// from http://www.opencores.org/lgpl.shtml ////
//// ////
//////////////////////////////////////////////////////////////////////
//
// CVS Revision History
//
// $Log: not supported by cvs2svn $
// Revision 1.1 2003/08/27 08:38:36 simons
// Added support for rams with byte write access.
//
//
 
// synopsys translate_off
`include "timescale.v"
// synopsys translate_on
`include "or1200_defines.v"
 
module or1200_spram_1024x32_bw(
`ifdef OR1200_BIST
// RAM BIST
mbist_si_i, mbist_so_o, mbist_ctrl_i,
`endif
// Generic synchronous single-port RAM interface
clk, rst, ce, we, oe, addr, di, do
);
 
`ifdef OR1200_BIST
//
// RAM BIST
//
input mbist_si_i;
input [`OR1200_MBIST_CTRL_WIDTH - 1:0] mbist_ctrl_i; // bist chain shift control
output mbist_so_o;
`endif
 
//
// Generic synchronous single-port RAM interface
//
input clk; // Clock
input rst; // Reset
input ce; // Chip enable input
input [3:0] we; // Write enable input
input oe; // Output enable input
input [9:0] addr; // address bus inputs
input [31:0] di; // input data bus
output [31:0] do; // output data bus
 
//
// Internal wires and registers
//
 
`ifdef OR1200_ARTISAN_SSP
`else
`ifdef OR1200_VIRTUALSILICON_SSP
`else
`ifdef OR1200_BIST
assign mbist_so_o = mbist_si_i;
`endif
`endif
`endif
 
 
`ifdef OR1200_ARTISAN_SSP
 
//
// Instantiation of ASIC memory:
//
// Artisan Synchronous Single-Port RAM (ra1sh)
//
`ifdef UNUSED
art_hssp_1024x32_bw artisan_ssp(
`else
`ifdef OR1200_BIST
art_hssp_1024x32_bw_bist artisan_ssp(
`else
art_hssp_1024x32_bw artisan_ssp(
`endif
`endif
`ifdef OR1200_BIST
// RAM BIST
.mbist_si_i(mbist_si_i),
.mbist_so_o(mbist_so_o),
.mbist_ctrl_i(mbist_ctrl_i),
`endif
.CLK(clk),
.CEN(~ce),
.WEN(~we),
.A(addr),
.D(di),
.OEN(~oe),
.Q(do)
);
 
`else
 
`ifdef OR1200_AVANT_ATP
 
//
// Instantiation of ASIC memory:
//
// Avant! Asynchronous Two-Port RAM
//
avant_atp avant_atp(
.web(~we),
.reb(),
.oeb(~oe),
.rcsb(),
.wcsb(),
.ra(addr),
.wa(addr),
.di(di),
.do(do)
);
 
`else
 
`ifdef OR1200_VIRAGE_SSP
 
//
// Instantiation of ASIC memory:
//
// Virage Synchronous 1-port R/W RAM
//
virage_ssp virage_ssp(
.clk(clk),
.adr(addr),
.d(di),
.we(we),
.oe(oe),
.me(ce),
.q(do)
);
 
`else
 
`ifdef OR1200_VIRTUALSILICON_SSP
 
//
// Instantiation of ASIC memory:
//
// Virtual Silicon Single-Port Synchronous SRAM
//
`ifdef OR1200_BIST
wire mbist_si_i_ram_0;
wire mbist_si_i_ram_1;
wire mbist_si_i_ram_2;
wire mbist_si_i_ram_3;
wire mbist_so_o_ram_0;
wire mbist_so_o_ram_1;
wire mbist_so_o_ram_2;
wire mbist_so_o_ram_3;
assign mbist_si_i_ram_0 = mbist_si_i;
assign mbist_si_i_ram_1 = mbist_so_o_ram_0;
assign mbist_si_i_ram_2 = mbist_so_o_ram_1;
assign mbist_si_i_ram_3 = mbist_so_o_ram_2;
assign mbist_so_o = mbist_so_o_ram_3;
`endif
 
`ifdef UNUSED
vs_hdsp_1024x8 vs_ssp_0(
`else
`ifdef OR1200_BIST
vs_hdsp_1024x8_bist vs_ssp_0(
`else
vs_hdsp_1024x8 vs_ssp_0(
`endif
`endif
`ifdef OR1200_BIST
// RAM BIST
.mbist_si_i(mbist_si_i_ram_0),
.mbist_so_o(mbist_so_o_ram_0),
.mbist_ctrl_i(mbist_ctrl_i),
`endif
.CK(clk),
.ADR(addr),
.DI(di[7:0]),
.WEN(~we[0]),
.CEN(~ce),
.OEN(~oe),
.DOUT(do[7:0])
);
 
`ifdef UNUSED
vs_hdsp_1024x8 vs_ssp_1(
`else
`ifdef OR1200_BIST
vs_hdsp_1024x8_bist vs_ssp_1(
`else
vs_hdsp_1024x8 vs_ssp_1(
`endif
`endif
`ifdef OR1200_BIST
// RAM BIST
.mbist_si_i(mbist_si_i_ram_1),
.mbist_so_o(mbist_so_o_ram_1),
.mbist_ctrl_i(mbist_ctrl_i),
`endif
.CK(clk),
.ADR(addr),
.DI(di[15:8]),
.WEN(~we[1]),
.CEN(~ce),
.OEN(~oe),
.DOUT(do[15:8])
);
 
`ifdef UNUSED
vs_hdsp_1024x8 vs_ssp_2(
`else
`ifdef OR1200_BIST
vs_hdsp_1024x8_bist vs_ssp_2(
`else
vs_hdsp_1024x8 vs_ssp_2(
`endif
`endif
`ifdef OR1200_BIST
// RAM BIST
.mbist_si_i(mbist_si_i_ram_2),
.mbist_so_o(mbist_so_o_ram_2),
.mbist_ctrl_i(mbist_ctrl_i),
`endif
.CK(clk),
.ADR(addr),
.DI(di[23:16]),
.WEN(~we[2]),
.CEN(~ce),
.OEN(~oe),
.DOUT(do[23:16])
);
 
`ifdef UNUSED
vs_hdsp_1024x8 vs_ssp_3(
`else
`ifdef OR1200_BIST
vs_hdsp_1024x8_bist vs_ssp_3(
`else
vs_hdsp_1024x8 vs_ssp_3(
`endif
`endif
`ifdef OR1200_BIST
// RAM BIST
.mbist_si_i(mbist_si_i_ram_3),
.mbist_so_o(mbist_so_o_ram_3),
.mbist_ctrl_i(mbist_ctrl_i),
`endif
.CK(clk),
.ADR(addr),
.DI(di[31:24]),
.WEN(~we[3]),
.CEN(~ce),
.OEN(~oe),
.DOUT(do[31:24])
);
 
`else
 
`ifdef OR1200_XILINX_RAMB4
 
//
// Instantiation of FPGA memory:
//
// Virtex/Spartan2
//
 
//
// Block 0
//
RAMB4_S4 ramb4_s4_0(
.CLK(clk),
.RST(rst),
.ADDR(addr),
.DI(di[3:0]),
.EN(ce),
.WE(we[0]),
.DO(do[3:0])
);
 
//
// Block 1
//
RAMB4_S4 ramb4_s4_1(
.CLK(clk),
.RST(rst),
.ADDR(addr),
.DI(di[7:4]),
.EN(ce),
.WE(we[0]),
.DO(do[7:4])
);
 
//
// Block 2
//
RAMB4_S4 ramb4_s4_2(
.CLK(clk),
.RST(rst),
.ADDR(addr),
.DI(di[11:8]),
.EN(ce),
.WE(we[1]),
.DO(do[11:8])
);
 
//
// Block 3
//
RAMB4_S4 ramb4_s4_3(
.CLK(clk),
.RST(rst),
.ADDR(addr),
.DI(di[15:12]),
.EN(ce),
.WE(we[1]),
.DO(do[15:12])
);
 
//
// Block 4
//
RAMB4_S4 ramb4_s4_4(
.CLK(clk),
.RST(rst),
.ADDR(addr),
.DI(di[19:16]),
.EN(ce),
.WE(we[2]),
.DO(do[19:16])
);
 
//
// Block 5
//
RAMB4_S4 ramb4_s4_5(
.CLK(clk),
.RST(rst),
.ADDR(addr),
.DI(di[23:20]),
.EN(ce),
.WE(we[2]),
.DO(do[23:20])
);
 
//
// Block 6
//
RAMB4_S4 ramb4_s4_6(
.CLK(clk),
.RST(rst),
.ADDR(addr),
.DI(di[27:24]),
.EN(ce),
.WE(we[3]),
.DO(do[27:24])
);
 
//
// Block 7
//
RAMB4_S4 ramb4_s4_7(
.CLK(clk),
.RST(rst),
.ADDR(addr),
.DI(di[31:28]),
.EN(ce),
.WE(we[3]),
.DO(do[31:28])
);
 
`else
 
//
// Generic single-port synchronous RAM model
//
 
//
// Generic RAM's registers and wires
//
reg [31:0] mem_0 [9:0]; // RAM content
reg [31:0] mem_1 [9:0]; // RAM content
reg [31:0] mem_2 [9:0]; // RAM content
reg [31:0] mem_3 [9:0]; // RAM content
reg [31:0] do_reg; // RAM data output register
 
//
// Data output drivers
//
assign do = (oe) ? do_reg : {32{1'b0}};
 
//
// RAM read and write
//
always @(posedge clk)
if (ce && !we) begin
do_reg[7:0] <= #1 mem_0[addr];
do_reg[15:8] <= #1 mem_1[addr];
do_reg[23:16] <= #1 mem_2[addr];
do_reg[31:24] <= #1 mem_3[addr];
end
else if (ce && we[0])
mem_0[addr] <= #1 di[7:0];
else if (ce && we[1])
mem_1[addr] <= #1 di[15:8];
else if (ce && we[2])
mem_2[addr] <= #1 di[23:16];
else if (ce && we[3])
mem_3[addr] <= #1 di[31:24];
 
`endif // !OR1200_XILINX_RAMB4_S16
`endif // !OR1200_VIRTUALSILICON_SSP
`endif // !OR1200_VIRAGE_SSP
`endif // !OR1200_AVANT_ATP
`endif // !OR1200_ARTISAN_SSP
 
endmodule
/tags/rel_26/or1200/rtl/verilog/or1200_freeze.v
0,0 → 1,197
//////////////////////////////////////////////////////////////////////
//// ////
//// OR1200's Freeze logic ////
//// ////
//// This file is part of the OpenRISC 1200 project ////
//// http://www.opencores.org/cores/or1k/ ////
//// ////
//// Description ////
//// Generates all freezes and stalls inside RISC ////
//// ////
//// To Do: ////
//// - make it smaller and faster ////
//// ////
//// Author(s): ////
//// - Damjan Lampret, lampret@opencores.org ////
//// ////
//////////////////////////////////////////////////////////////////////
//// ////
//// Copyright (C) 2000 Authors and OPENCORES.ORG ////
//// ////
//// This source file may be used and distributed without ////
//// restriction provided that this copyright statement is not ////
//// removed from the file and that any derivative work contains ////
//// the original copyright notice and the associated disclaimer. ////
//// ////
//// This source file is free software; you can redistribute it ////
//// and/or modify it under the terms of the GNU Lesser General ////
//// Public License as published by the Free Software Foundation; ////
//// either version 2.1 of the License, or (at your option) any ////
//// later version. ////
//// ////
//// This source is distributed in the hope that it will be ////
//// useful, but WITHOUT ANY WARRANTY; without even the implied ////
//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR ////
//// PURPOSE. See the GNU Lesser General Public License for more ////
//// details. ////
//// ////
//// You should have received a copy of the GNU Lesser General ////
//// Public License along with this source; if not, download it ////
//// from http://www.opencores.org/lgpl.shtml ////
//// ////
//////////////////////////////////////////////////////////////////////
//
// CVS Revision History
//
// $Log: not supported by cvs2svn $
// Revision 1.6.4.1 2003/07/08 15:36:37 lampret
// Added embedded memory QMEM.
//
// Revision 1.6 2002/07/31 02:04:35 lampret
// MAC now follows software convention (signed multiply instead of unsigned).
//
// Revision 1.5 2002/07/14 22:17:17 lampret
// Added simple trace buffer [only for Xilinx Virtex target]. Fixed instruction fetch abort when new exception is recognized.
//
// Revision 1.4 2002/03/29 15:16:55 lampret
// Some of the warnings fixed.
//
// Revision 1.3 2002/01/28 01:16:00 lampret
// Changed 'void' nop-ops instead of insn[0] to use insn[16]. Debug unit stalls the tick timer. Prepared new flag generation for add and and insns. Blocked DC/IC while they are turned off. Fixed I/D MMU SPRs layout except WAYs. TODO: smart IC invalidate, l.j 2 and TLB ways.
//
// Revision 1.2 2002/01/14 06:18:22 lampret
// Fixed mem2reg bug in FAST implementation. Updated debug unit to work with new genpc/if.
//
// Revision 1.1 2002/01/03 08:16:15 lampret
// New prefixes for RTL files, prefixed module names. Updated cache controllers and MMUs.
//
// Revision 1.10 2001/11/13 10:02:21 lampret
// Added 'setpc'. Renamed some signals (except_flushpipe into flushpipe etc)
//
// Revision 1.9 2001/10/21 17:57:16 lampret
// Removed params from generic_XX.v. Added translate_off/on in sprs.v and id.v. Removed spr_addr from dc.v and ic.v. Fixed CR+LF.
//
// Revision 1.8 2001/10/19 23:28:46 lampret
// Fixed some synthesis warnings. Configured with caches and MMUs.
//
// Revision 1.7 2001/10/14 13:12:09 lampret
// MP3 version.
//
// Revision 1.1.1.1 2001/10/06 10:18:36 igorm
// no message
//
// Revision 1.2 2001/08/09 13:39:33 lampret
// Major clean-up.
//
// Revision 1.1 2001/07/20 00:46:03 lampret
// Development version of RTL. Libraries are missing.
//
//
 
// synopsys translate_off
`include "timescale.v"
// synopsys translate_on
`include "or1200_defines.v"
 
`define OR1200_NO_FREEZE 3'd0
`define OR1200_FREEZE_BYDC 3'd1
`define OR1200_FREEZE_BYMULTICYCLE 3'd2
`define OR1200_WAIT_LSU_TO_FINISH 3'd3
`define OR1200_WAIT_IC 3'd4
 
//
// Freeze logic (stalls CPU pipeline, ifetcher etc.)
//
module or1200_freeze(
// Clock and reset
clk, rst,
 
// Internal i/f
multicycle, flushpipe, extend_flush, lsu_stall, if_stall,
lsu_unstall, du_stall, mac_stall,
force_dslot_fetch, abort_ex,
genpc_freeze, if_freeze, id_freeze, ex_freeze, wb_freeze,
icpu_ack_i, icpu_err_i
);
 
//
// I/O
//
input clk;
input rst;
input [`OR1200_MULTICYCLE_WIDTH-1:0] multicycle;
input flushpipe;
input extend_flush;
input lsu_stall;
input if_stall;
input lsu_unstall;
input force_dslot_fetch;
input abort_ex;
input du_stall;
input mac_stall;
output genpc_freeze;
output if_freeze;
output id_freeze;
output ex_freeze;
output wb_freeze;
input icpu_ack_i;
input icpu_err_i;
 
//
// Internal wires and regs
//
wire multicycle_freeze;
reg [`OR1200_MULTICYCLE_WIDTH-1:0] multicycle_cnt;
reg flushpipe_r;
 
//
// Pipeline freeze
//
// Rules how to create freeze signals:
// 1. Not overwriting pipeline stages:
// Freze signals at the beginning of pipeline (such as if_freeze) can be asserted more
// often than freeze signals at the of pipeline (such as wb_freeze). In other words, wb_freeze must never
// be asserted when ex_freeze is not. ex_freeze must never be asserted when id_freeze is not etc.
//
// 2. Inserting NOPs in the middle of pipeline only if supported:
// At this time, only ex_freeze (and wb_freeze) can be deassrted when id_freeze (and if_freeze) are asserted.
// This way NOP is asserted from stage ID into EX stage.
//
//assign genpc_freeze = du_stall | flushpipe_r | lsu_stall;
assign genpc_freeze = du_stall | flushpipe_r;
assign if_freeze = id_freeze | extend_flush;
//assign id_freeze = (lsu_stall | (~lsu_unstall & if_stall) | multicycle_freeze | force_dslot_fetch) & ~flushpipe | du_stall;
assign id_freeze = (lsu_stall | (~lsu_unstall & if_stall) | multicycle_freeze | force_dslot_fetch) | du_stall | mac_stall;
assign ex_freeze = wb_freeze;
//assign wb_freeze = (lsu_stall | (~lsu_unstall & if_stall) | multicycle_freeze) & ~flushpipe | du_stall | mac_stall;
assign wb_freeze = (lsu_stall | (~lsu_unstall & if_stall) | multicycle_freeze) | du_stall | mac_stall | abort_ex;
 
//
// registered flushpipe
//
always @(posedge clk or posedge rst)
if (rst)
flushpipe_r <= #1 1'b0;
else if (icpu_ack_i | icpu_err_i)
// else if (!if_stall)
flushpipe_r <= #1 flushpipe;
else if (!flushpipe)
flushpipe_r <= #1 1'b0;
//
// Multicycle freeze
//
assign multicycle_freeze = |multicycle_cnt;
 
//
// Multicycle counter
//
always @(posedge clk or posedge rst)
if (rst)
multicycle_cnt <= #1 3'b0;
else if (multicycle_cnt)
multicycle_cnt <= #1 multicycle_cnt - 1'd1;
else if (multicycle & !ex_freeze)
multicycle_cnt <= #1 multicycle;
 
endmodule
/tags/rel_26/or1200/rtl/verilog/or1200_dc_fsm.v
0,0 → 1,317
//////////////////////////////////////////////////////////////////////
//// ////
//// OR1200's DC FSM ////
//// ////
//// This file is part of the OpenRISC 1200 project ////
//// http://www.opencores.org/cores/or1k/ ////
//// ////
//// Description ////
//// Data cache state machine ////
//// ////
//// To Do: ////
//// - make it smaller and faster ////
//// ////
//// Author(s): ////
//// - Damjan Lampret, lampret@opencores.org ////
//// ////
//////////////////////////////////////////////////////////////////////
//// ////
//// Copyright (C) 2000 Authors and OPENCORES.ORG ////
//// ////
//// This source file may be used and distributed without ////
//// restriction provided that this copyright statement is not ////
//// removed from the file and that any derivative work contains ////
//// the original copyright notice and the associated disclaimer. ////
//// ////
//// This source file is free software; you can redistribute it ////
//// and/or modify it under the terms of the GNU Lesser General ////
//// Public License as published by the Free Software Foundation; ////
//// either version 2.1 of the License, or (at your option) any ////
//// later version. ////
//// ////
//// This source is distributed in the hope that it will be ////
//// useful, but WITHOUT ANY WARRANTY; without even the implied ////
//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR ////
//// PURPOSE. See the GNU Lesser General Public License for more ////
//// details. ////
//// ////
//// You should have received a copy of the GNU Lesser General ////
//// Public License along with this source; if not, download it ////
//// from http://www.opencores.org/lgpl.shtml ////
//// ////
//////////////////////////////////////////////////////////////////////
//
// CVS Revision History
//
// $Log: not supported by cvs2svn $
// Revision 1.7 2002/03/29 15:16:55 lampret
// Some of the warnings fixed.
//
// Revision 1.6 2002/03/28 19:10:40 lampret
// Optimized cache controller FSM.
//
// Revision 1.1.1.1 2002/03/21 16:55:45 lampret
// First import of the "new" XESS XSV environment.
//
//
// Revision 1.5 2002/02/11 04:33:17 lampret
// Speed optimizations (removed duplicate _cyc_ and _stb_). Fixed D/IMMU cache-inhibit attr.
//
// Revision 1.4 2002/02/01 19:56:54 lampret
// Fixed combinational loops.
//
// Revision 1.3 2002/01/28 01:15:59 lampret
// Changed 'void' nop-ops instead of insn[0] to use insn[16]. Debug unit stalls the tick timer. Prepared new flag generation for add and and insns. Blocked DC/IC while they are turned off. Fixed I/D MMU SPRs layout except WAYs. TODO: smart IC invalidate, l.j 2 and TLB ways.
//
// Revision 1.2 2002/01/14 06:18:22 lampret
// Fixed mem2reg bug in FAST implementation. Updated debug unit to work with new genpc/if.
//
// Revision 1.1 2002/01/03 08:16:15 lampret
// New prefixes for RTL files, prefixed module names. Updated cache controllers and MMUs.
//
// Revision 1.9 2001/10/21 17:57:16 lampret
// Removed params from generic_XX.v. Added translate_off/on in sprs.v and id.v. Removed spr_addr from dc.v and ic.v. Fixed CR+LF.
//
// Revision 1.8 2001/10/19 23:28:46 lampret
// Fixed some synthesis warnings. Configured with caches and MMUs.
//
// Revision 1.7 2001/10/14 13:12:09 lampret
// MP3 version.
//
// Revision 1.1.1.1 2001/10/06 10:18:35 igorm
// no message
//
// Revision 1.2 2001/08/09 13:39:33 lampret
// Major clean-up.
//
// Revision 1.1 2001/07/20 00:46:03 lampret
// Development version of RTL. Libraries are missing.
//
//
 
// synopsys translate_off
`include "timescale.v"
// synopsys translate_on
`include "or1200_defines.v"
 
`define OR1200_DCFSM_IDLE 3'd0
`define OR1200_DCFSM_CLOAD 3'd1
`define OR1200_DCFSM_LREFILL3 3'd2
`define OR1200_DCFSM_CSTORE 3'd3
`define OR1200_DCFSM_SREFILL4 3'd4
 
//
// Data cache FSM for cache line of 16 bytes (4x singleword)
//
 
module or1200_dc_fsm(
// Clock and reset
clk, rst,
 
// Internal i/f to top level DC
dc_en, dcqmem_cycstb_i, dcqmem_ci_i, dcqmem_we_i, dcqmem_sel_i,
tagcomp_miss, biudata_valid, biudata_error, start_addr, saved_addr,
dcram_we, biu_read, biu_write, first_hit_ack, first_miss_ack, first_miss_err,
burst, tag_we, dc_addr
);
 
//
// I/O
//
input clk;
input rst;
input dc_en;
input dcqmem_cycstb_i;
input dcqmem_ci_i;
input dcqmem_we_i;
input [3:0] dcqmem_sel_i;
input tagcomp_miss;
input biudata_valid;
input biudata_error;
input [31:0] start_addr;
output [31:0] saved_addr;
output [3:0] dcram_we;
output biu_read;
output biu_write;
output first_hit_ack;
output first_miss_ack;
output first_miss_err;
output burst;
output tag_we;
output [31:0] dc_addr;
 
//
// Internal wires and regs
//
reg [31:0] saved_addr_r;
reg [2:0] state;
reg [2:0] cnt;
reg hitmiss_eval;
reg store;
reg load;
reg cache_inhibit;
wire first_store_hit_ack;
 
//
// Generate of DCRAM write enables
//
assign dcram_we = {4{load & biudata_valid & !cache_inhibit}} | {4{first_store_hit_ack}} & dcqmem_sel_i;
assign tag_we = biu_read & biudata_valid & !cache_inhibit;
 
//
// BIU read and write
//
assign biu_read = (hitmiss_eval & tagcomp_miss) | (!hitmiss_eval & load);
assign biu_write = store;
 
assign dc_addr = (biu_read | biu_write) & !hitmiss_eval ? saved_addr : start_addr;
assign saved_addr = saved_addr_r;
 
//
// Assert for cache hit first word ready
// Assert for store cache hit first word ready
// Assert for cache miss first word stored/loaded OK
// Assert for cache miss first word stored/loaded with an error
//
assign first_hit_ack = (state == `OR1200_DCFSM_CLOAD) & !tagcomp_miss & !cache_inhibit & !dcqmem_ci_i | first_store_hit_ack;
assign first_store_hit_ack = (state == `OR1200_DCFSM_CSTORE) & !tagcomp_miss & biudata_valid & !cache_inhibit & !dcqmem_ci_i;
assign first_miss_ack = ((state == `OR1200_DCFSM_CLOAD) | (state == `OR1200_DCFSM_CSTORE)) & biudata_valid;
assign first_miss_err = ((state == `OR1200_DCFSM_CLOAD) | (state == `OR1200_DCFSM_CSTORE)) & biudata_error;
 
//
// Assert burst when doing reload of complete cache line
//
assign burst = (state == `OR1200_DCFSM_CLOAD) & tagcomp_miss & !cache_inhibit
| (state == `OR1200_DCFSM_LREFILL3)
`ifdef OR1200_DC_STORE_REFILL
| (state == `OR1200_DCFSM_SREFILL4)
`endif
;
 
//
// Main DC FSM
//
always @(posedge clk or posedge rst) begin
if (rst) begin
state <= #1 `OR1200_DCFSM_IDLE;
saved_addr_r <= #1 32'b0;
hitmiss_eval <= #1 1'b0;
store <= #1 1'b0;
load <= #1 1'b0;
cnt <= #1 3'b000;
cache_inhibit <= #1 1'b0;
end
else
case (state) // synopsys parallel_case
`OR1200_DCFSM_IDLE :
if (dc_en & dcqmem_cycstb_i & dcqmem_we_i) begin // store
state <= #1 `OR1200_DCFSM_CSTORE;
saved_addr_r <= #1 start_addr;
hitmiss_eval <= #1 1'b1;
store <= #1 1'b1;
load <= #1 1'b0;
cache_inhibit <= #1 1'b0;
end
else if (dc_en & dcqmem_cycstb_i) begin // load
state <= #1 `OR1200_DCFSM_CLOAD;
saved_addr_r <= #1 start_addr;
hitmiss_eval <= #1 1'b1;
store <= #1 1'b0;
load <= #1 1'b1;
cache_inhibit <= #1 1'b0;
end
else begin // idle
hitmiss_eval <= #1 1'b0;
store <= #1 1'b0;
load <= #1 1'b0;
cache_inhibit <= #1 1'b0;
end
`OR1200_DCFSM_CLOAD: begin // load
if (dcqmem_cycstb_i & dcqmem_ci_i)
cache_inhibit <= #1 1'b1;
if (hitmiss_eval)
saved_addr_r[31:13] <= #1 start_addr[31:13];
if ((hitmiss_eval & !dcqmem_cycstb_i) || // load aborted (usually caused by DMMU)
(biudata_error) || // load terminated with an error
((cache_inhibit | dcqmem_ci_i) & biudata_valid)) begin // load from cache-inhibited area
state <= #1 `OR1200_DCFSM_IDLE;
hitmiss_eval <= #1 1'b0;
load <= #1 1'b0;
cache_inhibit <= #1 1'b0;
end
else if (tagcomp_miss & biudata_valid) begin // load missed, finish current external load and refill
state <= #1 `OR1200_DCFSM_LREFILL3;
saved_addr_r[3:2] <= #1 saved_addr_r[3:2] + 1'd1;
hitmiss_eval <= #1 1'b0;
cnt <= #1 `OR1200_DCLS-2;
cache_inhibit <= #1 1'b0;
end
else if (!tagcomp_miss & !dcqmem_ci_i) begin // load hit, finish immediately
state <= #1 `OR1200_DCFSM_IDLE;
hitmiss_eval <= #1 1'b0;
load <= #1 1'b0;
cache_inhibit <= #1 1'b0;
end
else // load in-progress
hitmiss_eval <= #1 1'b0;
end
`OR1200_DCFSM_LREFILL3 : begin
if (biudata_valid && (|cnt)) begin // refill ack, more loads to come
cnt <= #1 cnt - 1'd1;
saved_addr_r[3:2] <= #1 saved_addr_r[3:2] + 1'd1;
end
else if (biudata_valid) begin // last load of line refill
state <= #1 `OR1200_DCFSM_IDLE;
load <= #1 1'b0;
end
end
`OR1200_DCFSM_CSTORE: begin // store
if (dcqmem_cycstb_i & dcqmem_ci_i)
cache_inhibit <= #1 1'b1;
if (hitmiss_eval)
saved_addr_r[31:13] <= #1 start_addr[31:13];
if ((hitmiss_eval & !dcqmem_cycstb_i) || // store aborted (usually caused by DMMU)
(biudata_error) || // store terminated with an error
((cache_inhibit | dcqmem_ci_i) & biudata_valid)) begin // store to cache-inhibited area
state <= #1 `OR1200_DCFSM_IDLE;
hitmiss_eval <= #1 1'b0;
store <= #1 1'b0;
cache_inhibit <= #1 1'b0;
end
`ifdef OR1200_DC_STORE_REFILL
else if (tagcomp_miss & biudata_valid) begin // store missed, finish write-through and do load refill
state <= #1 `OR1200_DCFSM_SREFILL4;
hitmiss_eval <= #1 1'b0;
store <= #1 1'b0;
load <= #1 1'b1;
cnt <= #1 `OR1200_DCLS-1;
cache_inhibit <= #1 1'b0;
end
`endif
else if (biudata_valid) begin // store hit, finish write-through
state <= #1 `OR1200_DCFSM_IDLE;
hitmiss_eval <= #1 1'b0;
store <= #1 1'b0;
cache_inhibit <= #1 1'b0;
end
else // store write-through in-progress
hitmiss_eval <= #1 1'b0;
end
`ifdef OR1200_DC_STORE_REFILL
`OR1200_DCFSM_SREFILL4 : begin
if (biudata_valid && (|cnt)) begin // refill ack, more loads to come
cnt <= #1 cnt - 1'd1;
saved_addr_r[3:2] <= #1 saved_addr_r[3:2] + 1'd1;
end
else if (biudata_valid) begin // last load of line refill
state <= #1 `OR1200_DCFSM_IDLE;
load <= #1 1'b0;
end
end
`endif
default:
state <= #1 `OR1200_DCFSM_IDLE;
endcase
end
 
endmodule
/tags/rel_26/or1200/rtl/verilog/or1200_dpram_32x32.v
0,0 → 1,504
//////////////////////////////////////////////////////////////////////
//// ////
//// Generic Double-Port Synchronous RAM ////
//// ////
//// This file is part of memory library available from ////
//// http://www.opencores.org/cvsweb.shtml/generic_memories/ ////
//// ////
//// Description ////
//// This block is a wrapper with common double-port ////
//// synchronous memory interface for different ////
//// types of ASIC and FPGA RAMs. Beside universal memory ////
//// interface it also provides behavioral model of generic ////
//// double-port synchronous RAM. ////
//// It should be used in all OPENCORES designs that want to be ////
//// portable accross different target technologies and ////
//// independent of target memory. ////
//// ////
//// Supported ASIC RAMs are: ////
//// - Artisan Double-Port Sync RAM ////
//// - Avant! Two-Port Sync RAM (*) ////
//// - Virage 2-port Sync RAM ////
//// ////
//// Supported FPGA RAMs are: ////
//// - Xilinx Virtex RAMB4_S16_S16 ////
//// - Altera LPM ////
//// ////
//// To Do: ////
//// - fix Avant! ////
//// - xilinx rams need external tri-state logic ////
//// - add additional RAMs ////
//// ////
//// Author(s): ////
//// - Damjan Lampret, lampret@opencores.org ////
//// ////
//////////////////////////////////////////////////////////////////////
//// ////
//// Copyright (C) 2000 Authors and OPENCORES.ORG ////
//// ////
//// This source file may be used and distributed without ////
//// restriction provided that this copyright statement is not ////
//// removed from the file and that any derivative work contains ////
//// the original copyright notice and the associated disclaimer. ////
//// ////
//// This source file is free software; you can redistribute it ////
//// and/or modify it under the terms of the GNU Lesser General ////
//// Public License as published by the Free Software Foundation; ////
//// either version 2.1 of the License, or (at your option) any ////
//// later version. ////
//// ////
//// This source is distributed in the hope that it will be ////
//// useful, but WITHOUT ANY WARRANTY; without even the implied ////
//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR ////
//// PURPOSE. See the GNU Lesser General Public License for more ////
//// details. ////
//// ////
//// You should have received a copy of the GNU Lesser General ////
//// Public License along with this source; if not, download it ////
//// from http://www.opencores.org/lgpl.shtml ////
//// ////
//////////////////////////////////////////////////////////////////////
//
// CVS Revision History
//
// $Log: not supported by cvs2svn $
// Revision 1.7 2003/04/07 01:19:07 lampret
// Added Altera LPM RAMs. Changed generic RAM output when OE inactive.
//
// Revision 1.6 2002/03/28 19:25:42 lampret
// Added second type of Virtual Silicon two-port SRAM (for register file). Changed defines for VS STP RAMs.
//
// Revision 1.5 2002/02/01 19:56:54 lampret
// Fixed combinational loops.
//
// Revision 1.4 2002/01/23 07:52:36 lampret
// Changed default reset values for SR and ESR to match or1ksim's. Fixed flop model in or1200_dpram_32x32 when OR1200_XILINX_RAM32X1D is defined.
//
// Revision 1.3 2002/01/19 14:10:22 lampret
// Fixed OR1200_XILINX_RAM32X1D.
//
// Revision 1.2 2002/01/15 06:12:22 lampret
// Fixed module name when compiling with OR1200_XILINX_RAM32X1D
//
// Revision 1.1 2002/01/03 08:16:15 lampret
// New prefixes for RTL files, prefixed module names. Updated cache controllers and MMUs.
//
// Revision 1.10 2001/11/05 14:48:00 lampret
// Added missing endif
//
// Revision 1.9 2001/11/02 18:57:14 lampret
// Modified virtual silicon instantiations.
//
// Revision 1.8 2001/10/22 19:39:56 lampret
// Fixed parameters in generic sprams.
//
// Revision 1.7 2001/10/21 17:57:16 lampret
// Removed params from generic_XX.v. Added translate_off/on in sprs.v and id.v. Removed spr_addr from dc.v and ic.v. Fixed CR+LF.
//
// Revision 1.6 2001/10/14 13:12:09 lampret
// MP3 version.
//
// Revision 1.1.1.1 2001/10/06 10:18:36 igorm
// no message
//
// Revision 1.1 2001/08/09 13:39:33 lampret
// Major clean-up.
//
// Revision 1.2 2001/07/30 05:38:02 lampret
// Adding empty directories required by HDL coding guidelines
//
//
 
// synopsys translate_off
`include "timescale.v"
// synopsys translate_on
`include "or1200_defines.v"
 
module or1200_dpram_32x32(
// Generic synchronous double-port RAM interface
clk_a, rst_a, ce_a, oe_a, addr_a, do_a,
clk_b, rst_b, ce_b, we_b, addr_b, di_b
);
 
//
// Default address and data buses width
//
parameter aw = 5;
parameter dw = 32;
 
//
// Generic synchronous double-port RAM interface
//
input clk_a; // Clock
input rst_a; // Reset
input ce_a; // Chip enable input
input oe_a; // Output enable input
input [aw-1:0] addr_a; // address bus inputs
output [dw-1:0] do_a; // output data bus
input clk_b; // Clock
input rst_b; // Reset
input ce_b; // Chip enable input
input we_b; // Write enable input
input [aw-1:0] addr_b; // address bus inputs
input [dw-1:0] di_b; // input data bus
 
//
// Internal wires and registers
//
 
`ifdef OR1200_ARTISAN_SDP
 
//
// Instantiation of ASIC memory:
//
// Artisan Synchronous Double-Port RAM (ra2sh)
//
`ifdef UNUSED
art_hsdp_32x32 #(dw, 1<<aw, aw) artisan_sdp(
`else
art_hsdp_32x32 artisan_sdp(
`endif
.qa(do_a),
.clka(clk_a),
.cena(~ce_a),
.wena(1'b1),
.aa(addr_a),
.da(32'h00000000),
.oena(~oe_a),
.qb(),
.clkb(clk_b),
.cenb(~ce_b),
.wenb(~we_b),
.ab(addr_b),
.db(di_b),
.oenb(1'b1)
);
 
`else
 
`ifdef OR1200_AVANT_ATP
 
//
// Instantiation of ASIC memory:
//
// Avant! Asynchronous Two-Port RAM
//
avant_atp avant_atp(
.web(~we),
.reb(),
.oeb(~oe),
.rcsb(),
.wcsb(),
.ra(addr),
.wa(addr),
.di(di),
.do(do)
);
 
`else
 
`ifdef OR1200_VIRAGE_STP
 
//
// Instantiation of ASIC memory:
//
// Virage Synchronous 2-port R/W RAM
//
virage_stp virage_stp(
.QA(do_a),
.QB(),
 
.ADRA(addr_a),
.DA(32'h00000000),
.WEA(1'b0),
.OEA(oe_a),
.MEA(ce_a),
.CLKA(clk_a),
 
.ADRB(addr_b),
.DB(di_b),
.WEB(we_b),
.OEB(1'b1),
.MEB(ce_b),
.CLKB(clk_b)
);
 
`else
 
`ifdef OR1200_VIRTUALSILICON_STP_T1
 
//
// Instantiation of ASIC memory:
//
// Virtual Silicon Two-port R/W SRAM Type 1
//
`ifdef UNUSED
vs_hdtp_64x32 #(1<<aw, aw-1, dw-1) vs_ssp(
`else
vs_hdtp_64x32 vs_ssp(
`endif
.P1CK(clk_a),
.P1CEN(~ce_a),
.P1WEN(1'b1),
.P1OEN(~oe_a),
.P1ADR({1'b0, addr_a}),
.P1DI(32'h0000_0000),
.P1DOUT(do_a),
 
.P2CK(clk_b),
.P2CEN(~ce_b),
.P2WEN(~ce_b),
.P2OEN(1'b1),
.P2ADR({1'b0, addr_b}),
.P2DI(di_b),
.P2DOUT()
);
 
`else
 
`ifdef OR1200_VIRTUALSILICON_STP_T2
 
//
// Instantiation of ASIC memory:
//
// Virtual Silicon Two-port R/W SRAM Type 2
//
`ifdef UNUSED
vs_hdtp_32x32 #(1<<aw, aw-1, dw-1) vs_ssp(
`else
vs_hdtp_32x32 vs_ssp(
`endif
.RCK(clk_a),
.REN(~ce_a),
.OEN(~oe_a),
.RADR(addr_a),
.DOUT(do_a),
 
.WCK(clk_b),
.WEN(~ce_b),
.WADR(addr_b),
.DI(di_b)
);
 
`else
 
`ifdef OR1200_XILINX_RAM32X1D
 
//
// Instantiation of FPGA memory:
//
// Virtex/Spartan2
//
 
reg [4:0] addr_a_r;
 
always @(posedge clk_a or posedge rst_a)
if (rst_a)
addr_a_r <= #1 5'b00000;
else if (ce_a)
addr_a_r <= #1 addr_a;
 
//
// Block 0
//
or1200_xcv_ram32x8d xcv_ram32x8d_0 (
.DPO(do_a[7:0]),
.SPO(),
.A(addr_b),
.D(di_b[7:0]),
.DPRA(addr_a_r),
.WCLK(clk_b),
.WE(we_b)
);
 
//
// Block 1
//
or1200_xcv_ram32x8d xcv_ram32x8d_1 (
.DPO(do_a[15:8]),
.SPO(),
.A(addr_b),
.D(di_b[15:8]),
.DPRA(addr_a_r),
.WCLK(clk_b),
.WE(we_b)
);
 
 
//
// Block 2
//
or1200_xcv_ram32x8d xcv_ram32x8d_2 (
.DPO(do_a[23:16]),
.SPO(),
.A(addr_b),
.D(di_b[23:16]),
.DPRA(addr_a_r),
.WCLK(clk_b),
.WE(we_b)
);
 
//
// Block 3
//
or1200_xcv_ram32x8d xcv_ram32x8d_3 (
.DPO(do_a[31:24]),
.SPO(),
.A(addr_b),
.D(di_b[31:24]),
.DPRA(addr_a_r),
.WCLK(clk_b),
.WE(we_b)
);
 
`else
 
`ifdef OR1200_XILINX_RAMB4
 
//
// Instantiation of FPGA memory:
//
// Virtex/Spartan2
//
 
//
// Block 0
//
RAMB4_S16_S16 ramb4_s16_0(
.CLKA(clk_a),
.RSTA(rst_a),
.ADDRA({3'b000, addr_a}),
.DIA(16'h0000),
.ENA(ce_a),
.WEA(1'b0),
.DOA(do_a[15:0]),
 
.CLKB(clk_b),
.RSTB(rst_b),
.ADDRB({3'b000, addr_b}),
.DIB(di_b[15:0]),
.ENB(ce_b),
.WEB(we_b),
.DOB()
);
 
//
// Block 1
//
RAMB4_S16_S16 ramb4_s16_1(
.CLKA(clk_a),
.RSTA(rst_a),
.ADDRA({3'b000, addr_a}),
.DIA(16'h0000),
.ENA(ce_a),
.WEA(1'b0),
.DOA(do_a[31:16]),
 
.CLKB(clk_b),
.RSTB(rst_b),
.ADDRB({3'b000, addr_b}),
.DIB(di_b[31:16]),
.ENB(ce_b),
.WEB(we_b),
.DOB()
);
 
`else
 
`ifdef OR1200_ALTERA_LPM_XXX
 
//
// Instantiation of FPGA memory:
//
// Altera LPM
//
// Added By Jamil Khatib
//
altqpram altqpram_component (
.wraddress_a (addr_a),
.inclocken_a (ce_a),
.wraddress_b (addr_b),
.wren_a (we_a),
.inclocken_b (ce_b),
.wren_b (we_b),
.inaclr_a (rst_a),
.inaclr_b (rst_b),
.inclock_a (clk_a),
.inclock_b (clk_b),
.data_a (di_a),
.data_b (di_b),
.q_a (do_a),
.q_b (do_b)
);
 
defparam altqpram_component.operation_mode = "BIDIR_DUAL_PORT",
altqpram_component.width_write_a = dw,
altqpram_component.widthad_write_a = aw,
altqpram_component.numwords_write_a = dw,
altqpram_component.width_read_a = dw,
altqpram_component.widthad_read_a = aw,
altqpram_component.numwords_read_a = dw,
altqpram_component.width_write_b = dw,
altqpram_component.widthad_write_b = aw,
altqpram_component.numwords_write_b = dw,
altqpram_component.width_read_b = dw,
altqpram_component.widthad_read_b = aw,
altqpram_component.numwords_read_b = dw,
altqpram_component.indata_reg_a = "INCLOCK_A",
altqpram_component.wrcontrol_wraddress_reg_a = "INCLOCK_A",
altqpram_component.outdata_reg_a = "INCLOCK_A",
altqpram_component.indata_reg_b = "INCLOCK_B",
altqpram_component.wrcontrol_wraddress_reg_b = "INCLOCK_B",
altqpram_component.outdata_reg_b = "INCLOCK_B",
altqpram_component.indata_aclr_a = "INACLR_A",
altqpram_component.wraddress_aclr_a = "INACLR_A",
altqpram_component.wrcontrol_aclr_a = "INACLR_A",
altqpram_component.outdata_aclr_a = "INACLR_A",
altqpram_component.indata_aclr_b = "NONE",
altqpram_component.wraddress_aclr_b = "NONE",
altqpram_component.wrcontrol_aclr_b = "NONE",
altqpram_component.outdata_aclr_b = "INACLR_B",
altqpram_component.lpm_hint = "USE_ESB=ON";
//examplar attribute altqpram_component NOOPT TRUE
 
`else
 
//
// Generic double-port synchronous RAM model
//
 
//
// Generic RAM's registers and wires
//
reg [dw-1:0] mem [(1<<aw)-1:0]; // RAM content
reg [dw-1:0] do_reg; // RAM data output register
 
//
// Data output drivers
//
assign do_a = (oe_a) ? do_reg : {dw{1'b0}};
 
//
// RAM read
//
always @(posedge clk_a)
if (ce_a)
do_reg <= #1 mem[addr_a];
 
//
// RAM write
//
always @(posedge clk_b)
if (ce_b && we_b)
mem[addr_b] <= #1 di_b;
 
`endif // !OR1200_ALTERA_LPM
`endif // !OR1200_XILINX_RAMB4_S16_S16
`endif // !OR1200_XILINX_RAM32X1D
`endif // !OR1200_VIRTUALSILICON_SSP_T1
`endif // !OR1200_VIRTUALSILICON_SSP_T2
`endif // !OR1200_VIRAGE_STP
`endif // !OR1200_AVANT_ATP
`endif // !OR1200_ARTISAN_SDP
 
endmodule
/tags/rel_26/or1200/rtl/verilog/or1200_tpram_32x32.v
0,0 → 1,360
//////////////////////////////////////////////////////////////////////
//// ////
//// Generic Two-Port Synchronous RAM ////
//// ////
//// This file is part of memory library available from ////
//// http://www.opencores.org/cvsweb.shtml/generic_memories/ ////
//// ////
//// Description ////
//// This block is a wrapper with common two-port ////
//// synchronous memory interface for different ////
//// types of ASIC and FPGA RAMs. Beside universal memory ////
//// interface it also provides behavioral model of generic ////
//// two-port synchronous RAM. ////
//// It should be used in all OPENCORES designs that want to be ////
//// portable accross different target technologies and ////
//// independent of target memory. ////
//// ////
//// Supported ASIC RAMs are: ////
//// - Artisan Double-Port Sync RAM ////
//// - Avant! Two-Port Sync RAM (*) ////
//// - Virage 2-port Sync RAM ////
//// ////
//// Supported FPGA RAMs are: ////
//// - Xilinx Virtex RAMB4_S16_S16 ////
//// - Altera LPM ////
//// ////
//// To Do: ////
//// - fix Avant! ////
//// - xilinx rams need external tri-state logic ////
//// - add additional RAMs (VS etc) ////
//// ////
//// Author(s): ////
//// - Damjan Lampret, lampret@opencores.org ////
//// ////
//////////////////////////////////////////////////////////////////////
//// ////
//// Copyright (C) 2000 Authors and OPENCORES.ORG ////
//// ////
//// This source file may be used and distributed without ////
//// restriction provided that this copyright statement is not ////
//// removed from the file and that any derivative work contains ////
//// the original copyright notice and the associated disclaimer. ////
//// ////
//// This source file is free software; you can redistribute it ////
//// and/or modify it under the terms of the GNU Lesser General ////
//// Public License as published by the Free Software Foundation; ////
//// either version 2.1 of the License, or (at your option) any ////
//// later version. ////
//// ////
//// This source is distributed in the hope that it will be ////
//// useful, but WITHOUT ANY WARRANTY; without even the implied ////
//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR ////
//// PURPOSE. See the GNU Lesser General Public License for more ////
//// details. ////
//// ////
//// You should have received a copy of the GNU Lesser General ////
//// Public License along with this source; if not, download it ////
//// from http://www.opencores.org/lgpl.shtml ////
//// ////
//////////////////////////////////////////////////////////////////////
//
// CVS Revision History
//
// $Log: not supported by cvs2svn $
// Revision 1.2 2003/04/07 01:19:07 lampret
// Added Altera LPM RAMs. Changed generic RAM output when OE inactive.
//
// Revision 1.1 2002/01/03 08:16:15 lampret
// New prefixes for RTL files, prefixed module names. Updated cache controllers and MMUs.
//
// Revision 1.7 2001/10/21 17:57:16 lampret
// Removed params from generic_XX.v. Added translate_off/on in sprs.v and id.v. Removed spr_addr from dc.v and ic.v. Fixed CR+LF.
//
// Revision 1.6 2001/10/14 13:12:09 lampret
// MP3 version.
//
// Revision 1.1.1.1 2001/10/06 10:18:36 igorm
// no message
//
// Revision 1.1 2001/08/09 13:39:33 lampret
// Major clean-up.
//
// Revision 1.2 2001/07/30 05:38:02 lampret
// Adding empty directories required by HDL coding guidelines
//
//
 
// synopsys translate_off
`include "timescale.v"
// synopsys translate_on
`include "or1200_defines.v"
 
module or1200_tpram_32x32(
// Generic synchronous two-port RAM interface
clk_a, rst_a, ce_a, we_a, oe_a, addr_a, di_a, do_a,
clk_b, rst_b, ce_b, we_b, oe_b, addr_b, di_b, do_b
);
 
//
// Default address and data buses width
//
parameter aw = 5;
parameter dw = 32;
 
//
// Generic synchronous two-port RAM interface
//
input clk_a; // Clock
input rst_a; // Reset
input ce_a; // Chip enable input
input we_a; // Write enable input
input oe_a; // Output enable input
input [aw-1:0] addr_a; // address bus inputs
input [dw-1:0] di_a; // input data bus
output [dw-1:0] do_a; // output data bus
input clk_b; // Clock
input rst_b; // Reset
input ce_b; // Chip enable input
input we_b; // Write enable input
input oe_b; // Output enable input
input [aw-1:0] addr_b; // address bus inputs
input [dw-1:0] di_b; // input data bus
output [dw-1:0] do_b; // output data bus
 
//
// Internal wires and registers
//
 
 
`ifdef OR1200_ARTISAN_SDP
 
//
// Instantiation of ASIC memory:
//
// Artisan Synchronous Double-Port RAM (ra2sh)
//
`ifdef UNUSED
art_hsdp_32x32 #(dw, 1<<aw, aw) artisan_sdp(
`else
art_hsdp_32x32 artisan_sdp(
`endif
.qa(do_a),
.clka(clk_a),
.cena(~ce_a),
.wena(~we_a),
.aa(addr_a),
.da(di_a),
.oena(~oe_a),
.qb(do_b),
.clkb(clk_b),
.cenb(~ce_b),
.wenb(~we_b),
.ab(addr_b),
.db(di_b),
.oenb(~oe_b)
);
 
`else
 
`ifdef OR1200_AVANT_ATP
 
//
// Instantiation of ASIC memory:
//
// Avant! Asynchronous Two-Port RAM
//
avant_atp avant_atp(
.web(~we),
.reb(),
.oeb(~oe),
.rcsb(),
.wcsb(),
.ra(addr),
.wa(addr),
.di(di),
.do(do)
);
 
`else
 
`ifdef OR1200_VIRAGE_STP
 
//
// Instantiation of ASIC memory:
//
// Virage Synchronous 2-port R/W RAM
//
virage_stp virage_stp(
.QA(do_a),
.QB(do_b),
 
.ADRA(addr_a),
.DA(di_a),
.WEA(we_a),
.OEA(oe_a),
.MEA(ce_a),
.CLKA(clk_a),
 
.ADRB(adr_b),
.DB(di_b),
.WEB(we_b),
.OEB(oe_b),
.MEB(ce_b),
.CLKB(clk_b)
);
 
`else
 
`ifdef OR1200_XILINX_RAMB4
 
//
// Instantiation of FPGA memory:
//
// Virtex/Spartan2
//
 
//
// Block 0
//
RAMB4_S16_S16 ramb4_s16_s16_0(
.CLKA(clk_a),
.RSTA(rst_a),
.ADDRA(addr_a),
.DIA(di_a[15:0]),
.ENA(ce_a),
.WEA(we_a),
.DOA(do_a[15:0]),
 
.CLKB(clk_b),
.RSTB(rst_b),
.ADDRB(addr_b),
.DIB(di_b[15:0]),
.ENB(ce_b),
.WEB(we_b),
.DOB(do_b[15:0])
);
 
//
// Block 1
//
RAMB4_S16_S16 ramb4_s16_s16_1(
.CLKA(clk_a),
.RSTA(rst_a),
.ADDRA(addr_a),
.DIA(di_a[31:16]),
.ENA(ce_a),
.WEA(we_a),
.DOA(do_a[31:16]),
 
.CLKB(clk_b),
.RSTB(rst_b),
.ADDRB(addr_b),
.DIB(di_b[31:16]),
.ENB(ce_b),
.WEB(we_b),
.DOB(do_b[31:16])
);
 
`else
 
`ifdef OR1200_ALTERA_LPM_XXX
 
//
// Instantiation of FPGA memory:
//
// Altera LPM
//
// Added By Jamil Khatib
//
altqpram altqpram_component (
.wraddress_a (addr_a),
.inclocken_a (ce_a),
.wraddress_b (addr_b),
.wren_a (we_a),
.inclocken_b (ce_b),
.wren_b (we_b),
.inaclr_a (rst_a),
.inaclr_b (rst_b),
.inclock_a (clk_a),
.inclock_b (clk_b),
.data_a (di_a),
.data_b (di_b),
.q_a (do_a),
.q_b (do_b)
);
 
defparam altqpram_component.operation_mode = "BIDIR_DUAL_PORT",
altqpram_component.width_write_a = dw,
altqpram_component.widthad_write_a = aw,
altqpram_component.numwords_write_a = dw,
altqpram_component.width_read_a = dw,
altqpram_component.widthad_read_a = aw,
altqpram_component.numwords_read_a = dw,
altqpram_component.width_write_b = dw,
altqpram_component.widthad_write_b = aw,
altqpram_component.numwords_write_b = dw,
altqpram_component.width_read_b = dw,
altqpram_component.widthad_read_b = aw,
altqpram_component.numwords_read_b = dw,
altqpram_component.indata_reg_a = "INCLOCK_A",
altqpram_component.wrcontrol_wraddress_reg_a = "INCLOCK_A",
altqpram_component.outdata_reg_a = "INCLOCK_A",
altqpram_component.indata_reg_b = "INCLOCK_B",
altqpram_component.wrcontrol_wraddress_reg_b = "INCLOCK_B",
altqpram_component.outdata_reg_b = "INCLOCK_B",
altqpram_component.indata_aclr_a = "INACLR_A",
altqpram_component.wraddress_aclr_a = "INACLR_A",
altqpram_component.wrcontrol_aclr_a = "INACLR_A",
altqpram_component.outdata_aclr_a = "INACLR_A",
altqpram_component.indata_aclr_b = "NONE",
altqpram_component.wraddress_aclr_b = "NONE",
altqpram_component.wrcontrol_aclr_b = "NONE",
altqpram_component.outdata_aclr_b = "INACLR_B",
altqpram_component.lpm_hint = "USE_ESB=ON";
//examplar attribute altqpram_component NOOPT TRUE
 
`else
 
//
// Generic two-port synchronous RAM model
//
 
//
// Generic RAM's registers and wires
//
reg [dw-1:0] mem [(1<<aw)-1:0]; // RAM content
reg [dw-1:0] do_reg_a; // RAM data output register
reg [dw-1:0] do_reg_b; // RAM data output register
 
//
// Data output drivers
//
assign do_a = (oe_a) ? do_reg_a : {dw{1'b0}};
assign do_b = (oe_b) ? do_reg_b : {dw{1'b0}};
 
//
// RAM read and write
//
always @(posedge clk_a)
if (ce_a && !we_a)
do_reg_a <= #1 mem[addr_a];
else if (ce_a && we_a)
mem[addr_a] <= #1 di_a;
 
//
// RAM read and write
//
always @(posedge clk_b)
if (ce_b && !we_b)
do_reg_b <= #1 mem[addr_b];
else if (ce_b && we_b)
mem[addr_b] <= #1 di_b;
 
`endif // !OR1200_ALTERA_LPM
`endif // !OR1200_XILINX_RAMB4_S16_S16
`endif // !OR1200_VIRAGE_STP
`endif // !OR1200_AVANT_ATP
`endif // !OR1200_ARTISAN_SDP
 
endmodule
/tags/rel_26/or1200/rtl/verilog/or1200_ic_fsm.v
0,0 → 1,258
//////////////////////////////////////////////////////////////////////
//// ////
//// OR1200's IC FSM ////
//// ////
//// This file is part of the OpenRISC 1200 project ////
//// http://www.opencores.org/cores/or1k/ ////
//// ////
//// Description ////
//// Insn cache state machine ////
//// ////
//// To Do: ////
//// - make it smaller and faster ////
//// ////
//// Author(s): ////
//// - Damjan Lampret, lampret@opencores.org ////
//// ////
//////////////////////////////////////////////////////////////////////
//// ////
//// Copyright (C) 2000 Authors and OPENCORES.ORG ////
//// ////
//// This source file may be used and distributed without ////
//// restriction provided that this copyright statement is not ////
//// removed from the file and that any derivative work contains ////
//// the original copyright notice and the associated disclaimer. ////
//// ////
//// This source file is free software; you can redistribute it ////
//// and/or modify it under the terms of the GNU Lesser General ////
//// Public License as published by the Free Software Foundation; ////
//// either version 2.1 of the License, or (at your option) any ////
//// later version. ////
//// ////
//// This source is distributed in the hope that it will be ////
//// useful, but WITHOUT ANY WARRANTY; without even the implied ////
//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR ////
//// PURPOSE. See the GNU Lesser General Public License for more ////
//// details. ////
//// ////
//// You should have received a copy of the GNU Lesser General ////
//// Public License along with this source; if not, download it ////
//// from http://www.opencores.org/lgpl.shtml ////
//// ////
//////////////////////////////////////////////////////////////////////
//
// CVS Revision History
//
// $Log: not supported by cvs2svn $
// Revision 1.8 2003/06/06 02:54:47 lampret
// When OR1200_NO_IMMU and OR1200_NO_IC are not both defined or undefined at the same time, results in a IC bug. Fixed.
//
// Revision 1.7 2002/03/29 15:16:55 lampret
// Some of the warnings fixed.
//
// Revision 1.6 2002/03/28 19:10:40 lampret
// Optimized cache controller FSM.
//
// Revision 1.1.1.1 2002/03/21 16:55:45 lampret
// First import of the "new" XESS XSV environment.
//
//
// Revision 1.5 2002/02/11 04:33:17 lampret
// Speed optimizations (removed duplicate _cyc_ and _stb_). Fixed D/IMMU cache-inhibit attr.
//
// Revision 1.4 2002/02/01 19:56:54 lampret
// Fixed combinational loops.
//
// Revision 1.3 2002/01/28 01:16:00 lampret
// Changed 'void' nop-ops instead of insn[0] to use insn[16]. Debug unit stalls the tick timer. Prepared new flag generation for add and and insns. Blocked DC/IC while they are turned off. Fixed I/D MMU SPRs layout except WAYs. TODO: smart IC invalidate, l.j 2 and TLB ways.
//
// Revision 1.2 2002/01/14 06:18:22 lampret
// Fixed mem2reg bug in FAST implementation. Updated debug unit to work with new genpc/if.
//
// Revision 1.1 2002/01/03 08:16:15 lampret
// New prefixes for RTL files, prefixed module names. Updated cache controllers and MMUs.
//
// Revision 1.9 2001/10/21 17:57:16 lampret
// Removed params from generic_XX.v. Added translate_off/on in sprs.v and id.v. Removed spr_addr from ic.v and ic.v. Fixed CR+LF.
//
// Revision 1.8 2001/10/19 23:28:46 lampret
// Fixed some synthesis warnings. Configured with caches and MMUs.
//
// Revision 1.7 2001/10/14 13:12:09 lampret
// MP3 version.
//
// Revision 1.1.1.1 2001/10/06 10:18:35 igorm
// no message
//
// Revision 1.2 2001/08/09 13:39:33 lampret
// Major clean-up.
//
// Revision 1.1 2001/07/20 00:46:03 lampret
// Development version of RTL. Libraries are missing.
//
//
 
// synopsys translate_off
`include "timescale.v"
// synopsys translate_on
`include "or1200_defines.v"
 
`define OR1200_ICFSM_IDLE 2'd0
`define OR1200_ICFSM_CFETCH 2'd1
`define OR1200_ICFSM_LREFILL3 2'd2
`define OR1200_ICFSM_IFETCH 2'd3
 
//
// Data cache FSM for cache line of 16 bytes (4x singleword)
//
 
module or1200_ic_fsm(
// Clock and reset
clk, rst,
 
// Internal i/f to top level IC
ic_en, icqmem_cycstb_i, icqmem_ci_i,
tagcomp_miss, biudata_valid, biudata_error, start_addr, saved_addr,
icram_we, biu_read, first_hit_ack, first_miss_ack, first_miss_err,
burst, tag_we
);
 
//
// I/O
//
input clk;
input rst;
input ic_en;
input icqmem_cycstb_i;
input icqmem_ci_i;
input tagcomp_miss;
input biudata_valid;
input biudata_error;
input [31:0] start_addr;
output [31:0] saved_addr;
output [3:0] icram_we;
output biu_read;
output first_hit_ack;
output first_miss_ack;
output first_miss_err;
output burst;
output tag_we;
 
//
// Internal wires and regs
//
reg [31:0] saved_addr_r;
reg [1:0] state;
reg [2:0] cnt;
reg hitmiss_eval;
reg load;
reg cache_inhibit;
 
//
// Generate of ICRAM write enables
//
assign icram_we = {4{biu_read & biudata_valid & !cache_inhibit}};
assign tag_we = biu_read & biudata_valid & !cache_inhibit;
 
//
// BIU read and write
//
assign biu_read = (hitmiss_eval & tagcomp_miss) | (!hitmiss_eval & load);
 
//assign saved_addr = hitmiss_eval ? start_addr : saved_addr_r;
assign saved_addr = saved_addr_r;
 
//
// Assert for cache hit first word ready
// Assert for cache miss first word stored/loaded OK
// Assert for cache miss first word stored/loaded with an error
//
assign first_hit_ack = (state == `OR1200_ICFSM_CFETCH) & hitmiss_eval & !tagcomp_miss & !cache_inhibit & !icqmem_ci_i;
assign first_miss_ack = (state == `OR1200_ICFSM_CFETCH) & biudata_valid;
assign first_miss_err = (state == `OR1200_ICFSM_CFETCH) & biudata_error;
 
//
// Assert burst when doing reload of complete cache line
//
assign burst = (state == `OR1200_ICFSM_CFETCH) & tagcomp_miss & !cache_inhibit
| (state == `OR1200_ICFSM_LREFILL3);
 
//
// Main IC FSM
//
always @(posedge clk or posedge rst) begin
if (rst) begin
state <= #1 `OR1200_ICFSM_IDLE;
saved_addr_r <= #1 32'b0;
hitmiss_eval <= #1 1'b0;
load <= #1 1'b0;
cnt <= #1 3'b000;
cache_inhibit <= #1 1'b0;
end
else
case (state) // synopsys parallel_case
`OR1200_ICFSM_IDLE :
if (ic_en & icqmem_cycstb_i) begin // fetch
state <= #1 `OR1200_ICFSM_CFETCH;
saved_addr_r <= #1 start_addr;
hitmiss_eval <= #1 1'b1;
load <= #1 1'b1;
cache_inhibit <= #1 1'b0;
end
else begin // idle
hitmiss_eval <= #1 1'b0;
load <= #1 1'b0;
cache_inhibit <= #1 1'b0;
end
`OR1200_ICFSM_CFETCH: begin // fetch
if (icqmem_cycstb_i & icqmem_ci_i)
cache_inhibit <= #1 1'b1;
if (hitmiss_eval)
saved_addr_r[31:13] <= #1 start_addr[31:13];
if ((!ic_en) ||
(hitmiss_eval & !icqmem_cycstb_i) || // fetch aborted (usually caused by IMMU)
(biudata_error) || // fetch terminated with an error
(cache_inhibit & biudata_valid)) begin // fetch from cache-inhibited page
state <= #1 `OR1200_ICFSM_IDLE;
hitmiss_eval <= #1 1'b0;
load <= #1 1'b0;
cache_inhibit <= #1 1'b0;
end
else if (tagcomp_miss & biudata_valid) begin // fetch missed, finish current external fetch and refill
state <= #1 `OR1200_ICFSM_LREFILL3;
saved_addr_r[3:2] <= #1 saved_addr_r[3:2] + 1'd1;
hitmiss_eval <= #1 1'b0;
cnt <= #1 `OR1200_ICLS-2;
cache_inhibit <= #1 1'b0;
end
else if (!tagcomp_miss & !icqmem_ci_i) begin // fetch hit, finish immediately
saved_addr_r <= #1 start_addr;
cache_inhibit <= #1 1'b0;
end
else if (!icqmem_cycstb_i) begin // fetch aborted (usually caused by exception)
state <= #1 `OR1200_ICFSM_IDLE;
hitmiss_eval <= #1 1'b0;
load <= #1 1'b0;
cache_inhibit <= #1 1'b0;
end
else // fetch in-progress
hitmiss_eval <= #1 1'b0;
end
`OR1200_ICFSM_LREFILL3 : begin
if (biudata_valid && (|cnt)) begin // refill ack, more fetchs to come
cnt <= #1 cnt - 1'd1;
saved_addr_r[3:2] <= #1 saved_addr_r[3:2] + 1'd1;
end
else if (biudata_valid) begin // last fetch of line refill
state <= #1 `OR1200_ICFSM_IDLE;
saved_addr_r <= #1 start_addr;
hitmiss_eval <= #1 1'b0;
load <= #1 1'b0;
end
end
default:
state <= #1 `OR1200_ICFSM_IDLE;
endcase
end
 
endmodule
/tags/rel_26/or1200/rtl/verilog/or1200_wb_biu.v
0,0 → 1,475
//////////////////////////////////////////////////////////////////////
//// ////
//// OR1200's WISHBONE BIU ////
//// ////
//// This file is part of the OpenRISC 1200 project ////
//// http://www.opencores.org/cores/or1k/ ////
//// ////
//// Description ////
//// Implements WISHBONE interface ////
//// ////
//// To Do: ////
//// - if biu_cyc/stb are deasserted and wb_ack_i is asserted ////
//// and this happens even before aborted_r is asssrted, ////
//// wb_ack_i will be delivered even though transfer is ////
//// internally considered already aborted. However most ////
//// wb_ack_i are externally registered and delayed. Normally ////
//// this shouldn't cause any problems. ////
//// ////
//// Author(s): ////
//// - Damjan Lampret, lampret@opencores.org ////
//// ////
//////////////////////////////////////////////////////////////////////
//// ////
//// Copyright (C) 2000 Authors and OPENCORES.ORG ////
//// ////
//// This source file may be used and distributed without ////
//// restriction provided that this copyright statement is not ////
//// removed from the file and that any derivative work contains ////
//// the original copyright notice and the associated disclaimer. ////
//// ////
//// This source file is free software; you can redistribute it ////
//// and/or modify it under the terms of the GNU Lesser General ////
//// Public License as published by the Free Software Foundation; ////
//// either version 2.1 of the License, or (at your option) any ////
//// later version. ////
//// ////
//// This source is distributed in the hope that it will be ////
//// useful, but WITHOUT ANY WARRANTY; without even the implied ////
//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR ////
//// PURPOSE. See the GNU Lesser General Public License for more ////
//// details. ////
//// ////
//// You should have received a copy of the GNU Lesser General ////
//// Public License along with this source; if not, download it ////
//// from http://www.opencores.org/lgpl.shtml ////
//// ////
//////////////////////////////////////////////////////////////////////
//
// CVS Revision History
//
// $Log: not supported by cvs2svn $
// Revision 1.6 2003/04/07 20:57:46 lampret
// Fixed OR1200_CLKDIV_x_SUPPORTED defines. Fixed order of ifdefs.
//
// Revision 1.5 2002/12/08 08:57:56 lampret
// Added optional support for WB B3 specification (xwb_cti_o, xwb_bte_o). Made xwb_cab_o optional.
//
// Revision 1.4 2002/09/16 03:09:16 lampret
// Fixed a combinational loop.
//
// Revision 1.3 2002/08/12 05:31:37 lampret
// Added optional retry counter for wb_rty_i. Added graceful termination for aborted transfers.
//
// Revision 1.2 2002/07/14 22:17:17 lampret
// Added simple trace buffer [only for Xilinx Virtex target]. Fixed instruction fetch abort when new exception is recognized.
//
// Revision 1.1 2002/01/03 08:16:15 lampret
// New prefixes for RTL files, prefixed module names. Updated cache controllers and MMUs.
//
// Revision 1.12 2001/11/22 13:42:51 lampret
// Added wb_cyc_o assignment after it was removed by accident.
//
// Revision 1.11 2001/11/20 21:28:10 lampret
// Added optional sampling of inputs.
//
// Revision 1.10 2001/11/18 11:32:00 lampret
// OR1200_REGISTERED_OUTPUTS can now be enabled.
//
// Revision 1.9 2001/10/21 17:57:16 lampret
// Removed params from generic_XX.v. Added translate_off/on in sprs.v and id.v. Removed spr_addr from dc.v and ic.v. Fixed CR+LF.
//
// Revision 1.8 2001/10/14 13:12:10 lampret
// MP3 version.
//
// Revision 1.1.1.1 2001/10/06 10:18:35 igorm
// no message
//
// Revision 1.3 2001/08/09 13:39:33 lampret
// Major clean-up.
//
// Revision 1.2 2001/07/22 03:31:54 lampret
// Fixed RAM's oen bug. Cache bypass under development.
//
// Revision 1.1 2001/07/20 00:46:23 lampret
// Development version of RTL. Libraries are missing.
//
//
 
// synopsys translate_off
`include "timescale.v"
// synopsys translate_on
`include "or1200_defines.v"
 
module or1200_wb_biu(
// RISC clock, reset and clock control
clk, rst, clmode,
 
// WISHBONE interface
wb_clk_i, wb_rst_i, wb_ack_i, wb_err_i, wb_rty_i, wb_dat_i,
wb_cyc_o, wb_adr_o, wb_stb_o, wb_we_o, wb_sel_o, wb_dat_o,
`ifdef OR1200_WB_CAB
wb_cab_o,
`endif
`ifdef OR1200_WB_B3
wb_cti_o, wb_bte_o,
`endif
 
// Internal RISC bus
biu_dat_i, biu_adr_i, biu_cyc_i, biu_stb_i, biu_we_i, biu_sel_i, biu_cab_i,
biu_dat_o, biu_ack_o, biu_err_o
);
 
parameter dw = `OR1200_OPERAND_WIDTH;
parameter aw = `OR1200_OPERAND_WIDTH;
 
//
// RISC clock, reset and clock control
//
input clk; // RISC clock
input rst; // RISC reset
input [1:0] clmode; // 00 WB=RISC, 01 WB=RISC/2, 10 N/A, 11 WB=RISC/4
 
//
// WISHBONE interface
//
input wb_clk_i; // clock input
input wb_rst_i; // reset input
input wb_ack_i; // normal termination
input wb_err_i; // termination w/ error
input wb_rty_i; // termination w/ retry
input [dw-1:0] wb_dat_i; // input data bus
output wb_cyc_o; // cycle valid output
output [aw-1:0] wb_adr_o; // address bus outputs
output wb_stb_o; // strobe output
output wb_we_o; // indicates write transfer
output [3:0] wb_sel_o; // byte select outputs
output [dw-1:0] wb_dat_o; // output data bus
`ifdef OR1200_WB_CAB
output wb_cab_o; // consecutive address burst
`endif
`ifdef OR1200_WB_B3
output [2:0] wb_cti_o; // cycle type identifier
output [1:0] wb_bte_o; // burst type extension
`endif
 
//
// Internal RISC interface
//
input [dw-1:0] biu_dat_i; // input data bus
input [aw-1:0] biu_adr_i; // address bus
input biu_cyc_i; // WB cycle
input biu_stb_i; // WB strobe
input biu_we_i; // WB write enable
input biu_cab_i; // CAB input
input [3:0] biu_sel_i; // byte selects
output [31:0] biu_dat_o; // output data bus
output biu_ack_o; // ack output
output biu_err_o; // err output
 
//
// Registers
//
reg [1:0] valid_div; // Used for synchronization
`ifdef OR1200_REGISTERED_OUTPUTS
reg [aw-1:0] wb_adr_o; // address bus outputs
reg wb_cyc_o; // cycle output
reg wb_stb_o; // strobe output
reg wb_we_o; // indicates write transfer
reg [3:0] wb_sel_o; // byte select outputs
`ifdef OR1200_WB_CAB
reg wb_cab_o; // CAB output
`endif
`ifdef OR1200_WB_B3
reg [1:0] burst_len; // burst counter
reg [2:0] wb_cti_o; // cycle type identifier
`endif
reg [dw-1:0] wb_dat_o; // output data bus
`endif
`ifdef OR1200_REGISTERED_INPUTS
reg long_ack_o; // normal termination
reg long_err_o; // error termination
reg [dw-1:0] biu_dat_o; // output data bus
`else
wire long_ack_o; // normal termination
wire long_err_o; // error termination
`endif
wire aborted; // Graceful abort
reg aborted_r; // Graceful abort
wire retry; // Retry
`ifdef OR1200_WB_RETRY
reg [`OR1200_WB_RETRY-1:0] retry_cntr; // Retry counter
`endif
 
//
// WISHBONE I/F <-> Internal RISC I/F conversion
//
 
//
// Address bus
//
`ifdef OR1200_REGISTERED_OUTPUTS
always @(posedge wb_clk_i or posedge wb_rst_i)
if (wb_rst_i)
wb_adr_o <= #1 {aw{1'b0}};
else if ((biu_cyc_i & biu_stb_i) & ~wb_ack_i & ~aborted & ~(wb_stb_o & ~wb_ack_i))
wb_adr_o <= #1 biu_adr_i;
`else
assign wb_adr_o = biu_adr_i;
`endif
 
//
// Input data bus
//
`ifdef OR1200_REGISTERED_INPUTS
always @(posedge wb_clk_i or posedge wb_rst_i)
if (wb_rst_i)
biu_dat_o <= #1 32'h0000_0000;
else if (wb_ack_i)
biu_dat_o <= #1 wb_dat_i;
`else
assign biu_dat_o = wb_dat_i;
`endif
 
//
// Output data bus
//
`ifdef OR1200_REGISTERED_OUTPUTS
always @(posedge wb_clk_i or posedge wb_rst_i)
if (wb_rst_i)
wb_dat_o <= #1 {dw{1'b0}};
else if ((biu_cyc_i & biu_stb_i) & ~wb_ack_i & ~aborted)
wb_dat_o <= #1 biu_dat_i;
`else
assign wb_dat_o = biu_dat_i;
`endif
 
//
// Valid_div counts RISC clock cycles by modulo 4
// and is used to synchronize external WB i/f to
// RISC clock
//
always @(posedge clk or posedge rst)
if (rst)
valid_div <= #1 2'b0;
else
valid_div <= #1 valid_div + 1'd1;
 
//
// biu_ack_o is one RISC clock cycle long long_ack_o.
// long_ack_o is one, two or four RISC clock cycles long because
// WISHBONE can work at 1, 1/2 or 1/4 RISC clock.
//
assign biu_ack_o = long_ack_o
`ifdef OR1200_CLKDIV_2_SUPPORTED
& (valid_div[0] | ~clmode[0])
`ifdef OR1200_CLKDIV_4_SUPPORTED
& (valid_div[1] | ~clmode[1])
`endif
`endif
;
 
//
// Acknowledgment of the data to the RISC
//
// long_ack_o
//
`ifdef OR1200_REGISTERED_INPUTS
always @(posedge wb_clk_i or posedge wb_rst_i)
if (wb_rst_i)
long_ack_o <= #1 1'b0;
else
long_ack_o <= #1 wb_ack_i & ~aborted;
`else
assign long_ack_o = wb_ack_i & ~aborted_r;
`endif
 
//
// biu_err_o is one RISC clock cycle long long_err_o.
// long_err_o is one, two or four RISC clock cycles long because
// WISHBONE can work at 1, 1/2 or 1/4 RISC clock.
//
assign biu_err_o = long_err_o
`ifdef OR1200_CLKDIV_2_SUPPORTED
& (valid_div[0] | ~clmode[0])
`ifdef OR1200_CLKDIV_4_SUPPORTED
& (valid_div[1] | ~clmode[1])
`endif
`endif
;
 
//
// Error termination
//
// long_err_o
//
`ifdef OR1200_REGISTERED_INPUTS
always @(posedge wb_clk_i or posedge wb_rst_i)
if (wb_rst_i)
long_err_o <= #1 1'b0;
else
long_err_o <= #1 wb_err_i & ~aborted;
`else
assign long_err_o = wb_err_i & ~aborted_r;
`endif
 
//
// Retry counter
//
// Assert 'retry' when 'wb_rty_i' is sampled high and keep it high
// until retry counter doesn't expire
//
`ifdef OR1200_WB_RETRY
assign retry = wb_rty_i | (|retry_cntr);
`else
assign retry = 1'b0;
`endif
`ifdef OR1200_WB_RETRY
always @(posedge wb_clk_i or posedge wb_rst_i)
if (wb_rst_i)
retry_cntr <= #1 1'b0;
else if (wb_rty_i)
retry_cntr <= #1 {`OR1200_WB_RETRY{1'b1}};
else if (retry_cntr)
retry_cntr <= #1 retry_cntr - 7'd1;
`endif
 
//
// Graceful completion of aborted transfers
//
// Assert 'aborted' when 1) current transfer is in progress (wb_stb_o; which
// we know is only asserted together with wb_cyc_o) 2) and in next WB clock cycle
// wb_stb_o would be deasserted (biu_cyc_i and biu_stb_i are low) 3) and
// there is no termination of current transfer in this WB clock cycle (wb_ack_i
// and wb_err_i are low).
// 'aborted_r' is registered 'aborted' and extended until this "aborted" transfer
// is properly terminated with wb_ack_i/wb_err_i.
//
assign aborted = wb_stb_o & ~(biu_cyc_i & biu_stb_i) & ~(wb_ack_i | wb_err_i);
always @(posedge wb_clk_i or posedge wb_rst_i)
if (wb_rst_i)
aborted_r <= #1 1'b0;
else if (wb_ack_i | wb_err_i)
aborted_r <= #1 1'b0;
else if (aborted)
aborted_r <= #1 1'b1;
 
//
// WB cyc_o
//
// Either 1) normal transfer initiated by biu_cyc_i (and biu_cab_i if
// bursts are enabled) and possibly suspended by 'retry'
// or 2) extended "aborted" transfer
//
`ifdef OR1200_REGISTERED_OUTPUTS
always @(posedge wb_clk_i or posedge wb_rst_i)
if (wb_rst_i)
wb_cyc_o <= #1 1'b0;
else
`ifdef OR1200_NO_BURSTS
wb_cyc_o <= #1 biu_cyc_i & ~wb_ack_i & ~retry | aborted & ~wb_ack_i;
`else
wb_cyc_o <= #1 biu_cyc_i & ~wb_ack_i & ~retry | biu_cab_i | aborted & ~wb_ack_i;
`endif
`else
`ifdef OR1200_NO_BURSTS
assign wb_cyc_o = biu_cyc_i & ~retry;
`else
assign wb_cyc_o = biu_cyc_i | biu_cab_i & ~retry;
`endif
`endif
 
//
// WB stb_o
//
`ifdef OR1200_REGISTERED_OUTPUTS
always @(posedge wb_clk_i or posedge wb_rst_i)
if (wb_rst_i)
wb_stb_o <= #1 1'b0;
else
wb_stb_o <= #1 (biu_cyc_i & biu_stb_i) & ~wb_ack_i & ~retry | aborted & ~wb_ack_i;
`else
assign wb_stb_o = biu_cyc_i & biu_stb_i;
`endif
 
//
// WB we_o
//
`ifdef OR1200_REGISTERED_OUTPUTS
always @(posedge wb_clk_i or posedge wb_rst_i)
if (wb_rst_i)
wb_we_o <= #1 1'b0;
else
wb_we_o <= #1 biu_cyc_i & biu_stb_i & biu_we_i | aborted & wb_we_o;
`else
assign wb_we_o = biu_cyc_i & biu_stb_i & biu_we_i;
`endif
 
//
// WB sel_o
//
`ifdef OR1200_REGISTERED_OUTPUTS
always @(posedge wb_clk_i or posedge wb_rst_i)
if (wb_rst_i)
wb_sel_o <= #1 4'b0000;
else
wb_sel_o <= #1 biu_sel_i;
`else
assign wb_sel_o = biu_sel_i;
`endif
 
`ifdef OR1200_WB_CAB
//
// WB cab_o
//
`ifdef OR1200_REGISTERED_OUTPUTS
always @(posedge wb_clk_i or posedge wb_rst_i)
if (wb_rst_i)
wb_cab_o <= #1 1'b0;
else
wb_cab_o <= #1 biu_cab_i;
`else
assign wb_cab_o = biu_cab_i;
`endif
`endif
 
`ifdef OR1200_WB_B3
//
// Count burst beats
//
always @(posedge wb_clk_i or posedge wb_rst_i)
if (wb_rst_i)
burst_len <= #1 2'b00;
else if (biu_cab_i && burst_len && wb_ack_i)
burst_len <= #1 burst_len - 1'b1;
else if (~biu_cab_i)
burst_len <= #1 2'b11;
 
//
// WB cti_o
//
`ifdef OR1200_REGISTERED_OUTPUTS
always @(posedge wb_clk_i or posedge wb_rst_i)
if (wb_rst_i)
wb_cti_o <= #1 3'b000; // classic cycle
`ifdef OR1200_NO_BURSTS
else
wb_cti_o <= #1 3'b111; // end-of-burst
`else
else if (biu_cab_i && burst_len[1])
wb_cti_o <= #1 3'b010; // incrementing burst cycle
else if (biu_cab_i && wb_ack_i)
wb_cti_o <= #1 3'b111; // end-of-burst
`endif // OR1200_NO_BURSTS
`else
Unsupported !!!;
`endif
 
//
// WB bte_o
//
assign wb_bte_o = 2'b01; // 4-beat wrap burst
 
`endif // OR1200_WB_B3
 
endmodule
/tags/rel_26/or1200/rtl/verilog/or1200_alu.v
0,0 → 1,366
//////////////////////////////////////////////////////////////////////
//// ////
//// OR1200's ALU ////
//// ////
//// This file is part of the OpenRISC 1200 project ////
//// http://www.opencores.org/cores/or1k/ ////
//// ////
//// Description ////
//// ALU ////
//// ////
//// To Do: ////
//// - make it smaller and faster ////
//// ////
//// Author(s): ////
//// - Damjan Lampret, lampret@opencores.org ////
//// ////
//////////////////////////////////////////////////////////////////////
//// ////
//// Copyright (C) 2000 Authors and OPENCORES.ORG ////
//// ////
//// This source file may be used and distributed without ////
//// restriction provided that this copyright statement is not ////
//// removed from the file and that any derivative work contains ////
//// the original copyright notice and the associated disclaimer. ////
//// ////
//// This source file is free software; you can redistribute it ////
//// and/or modify it under the terms of the GNU Lesser General ////
//// Public License as published by the Free Software Foundation; ////
//// either version 2.1 of the License, or (at your option) any ////
//// later version. ////
//// ////
//// This source is distributed in the hope that it will be ////
//// useful, but WITHOUT ANY WARRANTY; without even the implied ////
//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR ////
//// PURPOSE. See the GNU Lesser General Public License for more ////
//// details. ////
//// ////
//// You should have received a copy of the GNU Lesser General ////
//// Public License along with this source; if not, download it ////
//// from http://www.opencores.org/lgpl.shtml ////
//// ////
//////////////////////////////////////////////////////////////////////
//
// CVS Revision History
//
// $Log: not supported by cvs2svn $
// Revision 1.10 2002/09/08 05:52:16 lampret
// Added optional l.div/l.divu insns. By default they are disabled.
//
// Revision 1.9 2002/09/07 19:16:10 lampret
// If SR[CY] implemented with OR1200_IMPL_ADDC enabled, l.add/l.addi also set SR[CY].
//
// Revision 1.8 2002/09/07 05:42:02 lampret
// Added optional SR[CY]. Added define to enable additional (compare) flag modifiers. Defines are OR1200_IMPL_ADDC and OR1200_ADDITIONAL_FLAG_MODIFIERS.
//
// Revision 1.7 2002/09/03 22:28:21 lampret
// As per Taylor Su suggestion all case blocks are full case by default and optionally (OR1200_CASE_DEFAULT) can be disabled to increase clock frequncy.
//
// Revision 1.6 2002/03/29 16:40:10 lampret
// Added a directive to ignore signed division variables that are only used in simulation.
//
// Revision 1.5 2002/03/29 16:33:59 lampret
// Added again just recently removed full_case directive
//
// Revision 1.4 2002/03/29 15:16:53 lampret
// Some of the warnings fixed.
//
// Revision 1.3 2002/01/28 01:15:59 lampret
// Changed 'void' nop-ops instead of insn[0] to use insn[16]. Debug unit stalls the tick timer. Prepared new flag generation for add and and insns. Blocked DC/IC while they are turned off. Fixed I/D MMU SPRs layout except WAYs. TODO: smart IC invalidate, l.j 2 and TLB ways.
//
// Revision 1.2 2002/01/14 06:18:22 lampret
// Fixed mem2reg bug in FAST implementation. Updated debug unit to work with new genpc/if.
//
// Revision 1.1 2002/01/03 08:16:15 lampret
// New prefixes for RTL files, prefixed module names. Updated cache controllers and MMUs.
//
// Revision 1.10 2001/11/12 01:45:40 lampret
// Moved flag bit into SR. Changed RF enable from constant enable to dynamic enable for read ports.
//
// Revision 1.9 2001/10/21 17:57:16 lampret
// Removed params from generic_XX.v. Added translate_off/on in sprs.v and id.v. Removed spr_addr from dc.v and ic.v. Fixed CR+LF.
//
// Revision 1.8 2001/10/19 23:28:45 lampret
// Fixed some synthesis warnings. Configured with caches and MMUs.
//
// Revision 1.7 2001/10/14 13:12:09 lampret
// MP3 version.
//
// Revision 1.1.1.1 2001/10/06 10:18:35 igorm
// no message
//
// Revision 1.2 2001/08/09 13:39:33 lampret
// Major clean-up.
//
// Revision 1.1 2001/07/20 00:46:03 lampret
// Development version of RTL. Libraries are missing.
//
//
 
// synopsys translate_off
`include "timescale.v"
// synopsys translate_on
`include "or1200_defines.v"
 
module or1200_alu(
a, b, mult_mac_result, macrc_op,
alu_op, shrot_op, comp_op,
result, flagforw, flag_we,
cyforw, cy_we, carry
);
 
parameter width = `OR1200_OPERAND_WIDTH;
 
//
// I/O
//
input [width-1:0] a;
input [width-1:0] b;
input [width-1:0] mult_mac_result;
input macrc_op;
input [`OR1200_ALUOP_WIDTH-1:0] alu_op;
input [`OR1200_SHROTOP_WIDTH-1:0] shrot_op;
input [`OR1200_COMPOP_WIDTH-1:0] comp_op;
output [width-1:0] result;
output flagforw;
output flag_we;
output cyforw;
output cy_we;
input carry;
 
//
// Internal wires and regs
//
reg [width-1:0] result;
reg [width-1:0] shifted_rotated;
reg flagforw;
reg flagcomp;
reg flag_we;
reg cy_we;
wire [width-1:0] comp_a;
wire [width-1:0] comp_b;
`ifdef OR1200_IMPL_ALU_COMP1
wire a_eq_b;
wire a_lt_b;
`endif
wire [width-1:0] result_sum;
`ifdef OR1200_IMPL_ADDC
wire [width-1:0] result_csum;
wire cy_csum;
`endif
wire [width-1:0] result_and;
wire cy_sum;
reg cyforw;
 
//
// Combinatorial logic
//
assign comp_a = {a[width-1] ^ comp_op[3] , a[width-2:0]};
assign comp_b = {b[width-1] ^ comp_op[3] , b[width-2:0]};
`ifdef OR1200_IMPL_ALU_COMP1
assign a_eq_b = (comp_a == comp_b);
assign a_lt_b = (comp_a < comp_b);
`endif
assign {cy_sum, result_sum} = a + b;
`ifdef OR1200_IMPL_ADDC
assign {cy_csum, result_csum} = a + b + carry;
`endif
assign result_and = a & b;
 
//
// Simulation check for bad ALU behavior
//
`ifdef OR1200_WARNINGS
// synopsys translate_off
always @(result) begin
if (result === 32'bx)
$display("%t: WARNING: 32'bx detected on ALU result bus. Please check !", $time);
end
// synopsys translate_on
`endif
 
//
// Central part of the ALU
//
always @(alu_op or a or b or result_sum or result_and or macrc_op or shifted_rotated or mult_mac_result) begin
`ifdef OR1200_CASE_DEFAULT
casex (alu_op) // synopsys parallel_case
`else
casex (alu_op) // synopsys full_case parallel_case
`endif
`OR1200_ALUOP_SHROT : begin
result = shifted_rotated;
end
`OR1200_ALUOP_ADD : begin
result = result_sum;
end
`ifdef OR1200_IMPL_ADDC
`OR1200_ALUOP_ADDC : begin
result = result_csum;
end
`endif
`OR1200_ALUOP_SUB : begin
result = a - b;
end
`OR1200_ALUOP_XOR : begin
result = a ^ b;
end
`OR1200_ALUOP_OR : begin
result = a | b;
end
`OR1200_ALUOP_IMM : begin
result = b;
end
`OR1200_ALUOP_MOVHI : begin
if (macrc_op) begin
result = mult_mac_result;
end
else begin
result = b << 16;
end
end
`ifdef OR1200_MULT_IMPLEMENTED
`ifdef OR1200_IMPL_DIV
`OR1200_ALUOP_DIV,
`OR1200_ALUOP_DIVU,
`endif
`OR1200_ALUOP_MUL : begin
result = mult_mac_result;
end
`endif
`ifdef OR1200_CASE_DEFAULT
default: begin
`else
`OR1200_ALUOP_COMP, `OR1200_ALUOP_AND
`endif
result = result_and;
end
endcase
end
 
//
// Generate flag and flag write enable
//
always @(alu_op or result_sum or result_and or flagcomp) begin
casex (alu_op) // synopsys parallel_case
`ifdef OR1200_ADDITIONAL_FLAG_MODIFIERS
`OR1200_ALUOP_ADD : begin
flagforw = (result_sum == 32'h0000_0000);
flag_we = 1'b1;
end
`ifdef OR1200_IMPL_ADDC
`OR1200_ALUOP_ADDC : begin
flagforw = (result_csum == 32'h0000_0000);
flag_we = 1'b1;
end
`endif
`OR1200_ALUOP_AND: begin
flagforw = (result_and == 32'h0000_0000);
flag_we = 1'b1;
end
`endif
`OR1200_ALUOP_COMP: begin
flagforw = flagcomp;
flag_we = 1'b1;
end
default: begin
flagforw = 1'b0;
flag_we = 1'b0;
end
endcase
end
 
//
// Generate SR[CY] write enable
//
always @(alu_op or cy_sum
`ifdef OR1200_IMPL_ADDC
or cy_csum
`endif
) begin
casex (alu_op) // synopsys parallel_case
`ifdef OR1200_IMPL_ADDC
`OR1200_ALUOP_ADD : begin
cyforw = cy_sum;
cy_we = 1'b1;
end
`OR1200_ALUOP_ADDC: begin
cyforw = cy_csum;
cy_we = 1'b1;
end
`endif
default: begin
cyforw = 1'b0;
cy_we = 1'b0;
end
endcase
end
 
//
// Shifts and rotation
//
always @(shrot_op or a or b) begin
case (shrot_op) // synopsys parallel_case
`OR1200_SHROTOP_SLL :
shifted_rotated = (a << b[4:0]);
`OR1200_SHROTOP_SRL :
shifted_rotated = (a >> b[4:0]);
 
`ifdef OR1200_IMPL_ALU_ROTATE
`OR1200_SHROTOP_ROR :
shifted_rotated = (a << (6'd32-{1'b0, b[4:0]})) | (a >> b[4:0]);
`endif
default:
shifted_rotated = ({32{a[31]}} << (6'd32-{1'b0, b[4:0]})) | a >> b[4:0];
endcase
end
 
//
// First type of compare implementation
//
`ifdef OR1200_IMPL_ALU_COMP1
always @(comp_op or a_eq_b or a_lt_b) begin
case(comp_op[2:0]) // synopsys parallel_case
`OR1200_COP_SFEQ:
flagcomp = a_eq_b;
`OR1200_COP_SFNE:
flagcomp = ~a_eq_b;
`OR1200_COP_SFGT:
flagcomp = ~(a_eq_b | a_lt_b);
`OR1200_COP_SFGE:
flagcomp = ~a_lt_b;
`OR1200_COP_SFLT:
flagcomp = a_lt_b;
`OR1200_COP_SFLE:
flagcomp = a_eq_b | a_lt_b;
default:
flagcomp = 1'b0;
endcase
end
`endif
 
//
// Second type of compare implementation
//
`ifdef OR1200_IMPL_ALU_COMP2
always @(comp_op or comp_a or comp_b) begin
case(comp_op[2:0]) // synopsys parallel_case
`OR1200_COP_SFEQ:
flagcomp = (comp_a == comp_b);
`OR1200_COP_SFNE:
flagcomp = (comp_a != comp_b);
`OR1200_COP_SFGT:
flagcomp = (comp_a > comp_b);
`OR1200_COP_SFGE:
flagcomp = (comp_a >= comp_b);
`OR1200_COP_SFLT:
flagcomp = (comp_a < comp_b);
`OR1200_COP_SFLE:
flagcomp = (comp_a <= comp_b);
default:
flagcomp = 1'b0;
endcase
end
`endif
 
endmodule
/tags/rel_26/or1200/rtl/verilog/or1200_mult_mac.v
0,0 → 1,328
//////////////////////////////////////////////////////////////////////
//// ////
//// OR1200's Top level multiplier and MAC ////
//// ////
//// This file is part of the OpenRISC 1200 project ////
//// http://www.opencores.org/cores/or1k/ ////
//// ////
//// Description ////
//// Multiplier is 32x32 however multiply instructions only ////
//// use lower 32 bits of the result. MAC is 32x32=64+64. ////
//// ////
//// To Do: ////
//// - make signed division better, w/o negating the operands ////
//// ////
//// Author(s): ////
//// - Damjan Lampret, lampret@opencores.org ////
//// ////
//////////////////////////////////////////////////////////////////////
//// ////
//// Copyright (C) 2000 Authors and OPENCORES.ORG ////
//// ////
//// This source file may be used and distributed without ////
//// restriction provided that this copyright statement is not ////
//// removed from the file and that any derivative work contains ////
//// the original copyright notice and the associated disclaimer. ////
//// ////
//// This source file is free software; you can redistribute it ////
//// and/or modify it under the terms of the GNU Lesser General ////
//// Public License as published by the Free Software Foundation; ////
//// either version 2.1 of the License, or (at your option) any ////
//// later version. ////
//// ////
//// This source is distributed in the hope that it will be ////
//// useful, but WITHOUT ANY WARRANTY; without even the implied ////
//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR ////
//// PURPOSE. See the GNU Lesser General Public License for more ////
//// details. ////
//// ////
//// You should have received a copy of the GNU Lesser General ////
//// Public License along with this source; if not, download it ////
//// from http://www.opencores.org/lgpl.shtml ////
//// ////
//////////////////////////////////////////////////////////////////////
//
// CVS Revision History
//
// $Log: not supported by cvs2svn $
// Revision 1.2 2002/09/08 05:52:16 lampret
// Added optional l.div/l.divu insns. By default they are disabled.
//
// Revision 1.1 2002/01/03 08:16:15 lampret
// New prefixes for RTL files, prefixed module names. Updated cache controllers and MMUs.
//
// Revision 1.3 2001/10/21 17:57:16 lampret
// Removed params from generic_XX.v. Added translate_off/on in sprs.v and id.v. Removed spr_addr from dc.v and ic.v. Fixed CR+LF.
//
// Revision 1.2 2001/10/14 13:12:09 lampret
// MP3 version.
//
// Revision 1.1.1.1 2001/10/06 10:18:38 igorm
// no message
//
//
 
// synopsys translate_off
`include "timescale.v"
// synopsys translate_on
`include "or1200_defines.v"
 
module or1200_mult_mac(
// Clock and reset
clk, rst,
 
// Multiplier/MAC interface
ex_freeze, id_macrc_op, macrc_op, a, b, mac_op, alu_op, result, mac_stall_r,
 
// SPR interface
spr_cs, spr_write, spr_addr, spr_dat_i, spr_dat_o
);
 
parameter width = `OR1200_OPERAND_WIDTH;
 
//
// I/O
//
 
//
// Clock and reset
//
input clk;
input rst;
 
//
// Multiplier/MAC interface
//
input ex_freeze;
input id_macrc_op;
input macrc_op;
input [width-1:0] a;
input [width-1:0] b;
input [`OR1200_MACOP_WIDTH-1:0] mac_op;
input [`OR1200_ALUOP_WIDTH-1:0] alu_op;
output [width-1:0] result;
output mac_stall_r;
 
//
// SPR interface
//
input spr_cs;
input spr_write;
input [31:0] spr_addr;
input [31:0] spr_dat_i;
output [31:0] spr_dat_o;
 
//
// Internal wires and regs
//
`ifdef OR1200_MULT_IMPLEMENTED
reg [width-1:0] result;
reg [2*width-1:0] mul_prod_r;
`else
wire [width-1:0] result;
wire [2*width-1:0] mul_prod_r;
`endif
wire [2*width-1:0] mul_prod;
wire [`OR1200_MACOP_WIDTH-1:0] mac_op;
`ifdef OR1200_MAC_IMPLEMENTED
reg [`OR1200_MACOP_WIDTH-1:0] mac_op_r1;
reg [`OR1200_MACOP_WIDTH-1:0] mac_op_r2;
reg [`OR1200_MACOP_WIDTH-1:0] mac_op_r3;
reg mac_stall_r;
reg [2*width-1:0] mac_r;
`else
wire [`OR1200_MACOP_WIDTH-1:0] mac_op_r1;
wire [`OR1200_MACOP_WIDTH-1:0] mac_op_r2;
wire [`OR1200_MACOP_WIDTH-1:0] mac_op_r3;
wire mac_stall_r;
wire [2*width-1:0] mac_r;
`endif
wire [width-1:0] x;
wire [width-1:0] y;
wire spr_maclo_we;
wire spr_machi_we;
wire alu_op_div_divu;
wire alu_op_div;
reg div_free;
`ifdef OR1200_IMPL_DIV
wire [width-1:0] div_tmp;
reg [5:0] div_cntr;
`endif
 
//
// Combinatorial logic
//
`ifdef OR1200_MAC_IMPLEMENTED
assign spr_maclo_we = spr_cs & spr_write & spr_addr[`OR1200_MAC_ADDR];
assign spr_machi_we = spr_cs & spr_write & !spr_addr[`OR1200_MAC_ADDR];
assign spr_dat_o = spr_addr[`OR1200_MAC_ADDR] ? mac_r[31:0] : mac_r[63:32];
`else
assign spr_maclo_we = 1'b0;
assign spr_machi_we = 1'b0;
assign spr_dat_o = 32'h0000_0000;
`endif
`ifdef OR1200_LOWPWR_MULT
assign x = (alu_op_div & a[31]) ? ~a + 1'b1 : alu_op_div_divu | (alu_op == `OR1200_ALUOP_MUL) | (|mac_op) ? a : 32'h0000_0000;
assign y = (alu_op_div & b[31]) ? ~b + 1'b1 : alu_op_div_divu | (alu_op == `OR1200_ALUOP_MUL) | (|mac_op) ? b : 32'h0000_0000;
`else
assign x = alu_op_div & a[31] ? ~a + 1'b1 : a;
assign y = alu_op_div & b[31] ? ~b + 1'b1 : b;
`endif
`ifdef OR1200_IMPL_DIV
assign alu_op_div = (alu_op == `OR1200_ALUOP_DIV);
assign alu_op_div_divu = alu_op_div | (alu_op == `OR1200_ALUOP_DIVU);
assign div_tmp = mul_prod_r[63:32] - y;
`else
assign alu_op_div = 1'b0;
assign alu_op_div_divu = 1'b0;
`endif
 
`ifdef OR1200_MULT_IMPLEMENTED
 
//
// Select result of current ALU operation to be forwarded
// to next instruction and to WB stage
//
always @(alu_op or mul_prod_r or mac_r or a or b)
casex(alu_op) // synopsys parallel_case
`ifdef OR1200_IMPL_DIV
`OR1200_ALUOP_DIV:
result = a[31] ^ b[31] ? ~mul_prod_r[31:0] + 1'b1 : mul_prod_r[31:0];
`OR1200_ALUOP_DIVU,
`endif
`OR1200_ALUOP_MUL: begin
result = mul_prod_r[31:0];
end
default:
result = mac_r[59:28];
endcase
 
//
// Instantiation of the multiplier
//
`ifdef OR1200_ASIC_MULTP2_32X32
or1200_amultp2_32x32 or1200_amultp2_32x32(
.X(x),
.Y(y),
.RST(rst),
.CLK(clk),
.P(mul_prod)
);
`else // OR1200_ASIC_MULTP2_32X32
or1200_gmultp2_32x32 or1200_gmultp2_32x32(
.X(x),
.Y(y),
.RST(rst),
.CLK(clk),
.P(mul_prod)
);
`endif // OR1200_ASIC_MULTP2_32X32
 
//
// Registered output from the multiplier and
// an optional divider
//
always @(posedge rst or posedge clk)
if (rst) begin
mul_prod_r <= #1 64'h0000_0000_0000_0000;
div_free <= #1 1'b1;
`ifdef OR1200_IMPL_DIV
div_cntr <= #1 6'b00_0000;
`endif
end
`ifdef OR1200_IMPL_DIV
else if (|div_cntr) begin
if (div_tmp[31])
mul_prod_r <= #1 {mul_prod_r[62:0], 1'b0};
else
mul_prod_r <= #1 {div_tmp[30:0], mul_prod_r[31:0], 1'b1};
div_cntr <= #1 div_cntr - 1'b1;
end
else if (alu_op_div_divu && div_free) begin
mul_prod_r <= #1 {31'b0, x[31:0], 1'b0};
div_cntr <= #1 6'b10_0000;
div_free <= #1 1'b0;
end
`endif // OR1200_IMPL_DIV
else if (div_free | !ex_freeze) begin
mul_prod_r <= #1 mul_prod[63:0];
div_free <= #1 1'b1;
end
 
`else // OR1200_MULT_IMPLEMENTED
assign result = {width{1'b0}};
assign mul_prod = {2*width{1'b0}};
assign mul_prod_r = {2*width{1'b0}};
`endif // OR1200_MULT_IMPLEMENTED
 
`ifdef OR1200_MAC_IMPLEMENTED
 
//
// Propagation of l.mac opcode
//
always @(posedge clk or posedge rst)
if (rst)
mac_op_r1 <= #1 `OR1200_MACOP_WIDTH'b0;
else
mac_op_r1 <= #1 mac_op;
 
//
// Propagation of l.mac opcode
//
always @(posedge clk or posedge rst)
if (rst)
mac_op_r2 <= #1 `OR1200_MACOP_WIDTH'b0;
else
mac_op_r2 <= #1 mac_op_r1;
 
//
// Propagation of l.mac opcode
//
always @(posedge clk or posedge rst)
if (rst)
mac_op_r3 <= #1 `OR1200_MACOP_WIDTH'b0;
else
mac_op_r3 <= #1 mac_op_r2;
 
//
// Implementation of MAC
//
always @(posedge rst or posedge clk)
if (rst)
mac_r <= #1 64'h0000_0000_0000_0000;
`ifdef OR1200_MAC_SPR_WE
else if (spr_maclo_we)
mac_r[31:0] <= #1 spr_dat_i;
else if (spr_machi_we)
mac_r[63:32] <= #1 spr_dat_i;
`endif
else if (mac_op_r3 == `OR1200_MACOP_MAC)
mac_r <= #1 mac_r + mul_prod_r;
else if (mac_op_r3 == `OR1200_MACOP_MSB)
mac_r <= #1 mac_r - mul_prod_r;
else if (macrc_op & !ex_freeze)
mac_r <= #1 64'h0000_0000_0000_0000;
 
//
// Stall CPU if l.macrc is in ID and MAC still has to process l.mac instructions
// in EX stage (e.g. inside multiplier)
// This stall signal is also used by the divider.
//
always @(posedge rst or posedge clk)
if (rst)
mac_stall_r <= #1 1'b0;
else
mac_stall_r <= #1 (|mac_op | (|mac_op_r1) | (|mac_op_r2)) & id_macrc_op
`ifdef OR1200_IMPL_DIV
| (|div_cntr)
`endif
;
`else // OR1200_MAC_IMPLEMENTED
assign mac_stall_r = 1'b0;
assign mac_r = {2*width{1'b0}};
assign mac_op_r1 = `OR1200_MACOP_WIDTH'b0;
assign mac_op_r2 = `OR1200_MACOP_WIDTH'b0;
assign mac_op_r3 = `OR1200_MACOP_WIDTH'b0;
`endif // OR1200_MAC_IMPLEMENTED
 
endmodule
/tags/rel_26/or1200/rtl/verilog/or1200_amultp2_32x32.v
0,0 → 1,2535
//////////////////////////////////////////////////////////////////////
//// ////
//// OR1200's 32x32 multiply for ASIC ////
//// ////
//// This file is part of the OpenRISC 1200 project ////
//// http://www.opencores.org/cores/or1k/ ////
//// ////
//// Description ////
//// 32x32 multiply for ASIC ////
//// ////
//// To Do: ////
//// - make it smaller and faster ////
//// ////
//// Author(s): ////
//// - Damjan Lampret, lampret@opencores.org ////
//// ////
//////////////////////////////////////////////////////////////////////
//// ////
//// Copyright (C) 2000 Authors and OPENCORES.ORG ////
//// ////
//// This source file may be used and distributed without ////
//// restriction provided that this copyright statement is not ////
//// removed from the file and that any derivative work contains ////
//// the original copyright notice and the associated disclaimer. ////
//// ////
//// This source file is free software; you can redistribute it ////
//// and/or modify it under the terms of the GNU Lesser General ////
//// Public License as published by the Free Software Foundation; ////
//// either version 2.1 of the License, or (at your option) any ////
//// later version. ////
//// ////
//// This source is distributed in the hope that it will be ////
//// useful, but WITHOUT ANY WARRANTY; without even the implied ////
//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR ////
//// PURPOSE. See the GNU Lesser General Public License for more ////
//// details. ////
//// ////
//// You should have received a copy of the GNU Lesser General ////
//// Public License along with this source; if not, download it ////
//// from http://www.opencores.org/lgpl.shtml ////
//// ////
//////////////////////////////////////////////////////////////////////
//
// CVS Revision History
//
// $Log: not supported by cvs2svn $
// Revision 1.1 2002/01/03 08:16:15 lampret
// New prefixes for RTL files, prefixed module names. Updated cache controllers and MMUs.
//
// Revision 1.9 2001/12/04 05:02:35 lampret
// Added OR1200_GENERIC_MULTP2_32X32 and OR1200_ASIC_MULTP2_32X32
//
// Revision 1.8 2001/10/21 17:57:16 lampret
// Removed params from generic_XX.v. Added translate_off/on in sprs.v and id.v. Removed spr_addr from dc.v and ic.v. Fixed CR+LF.
//
// Revision 1.7 2001/10/14 13:12:09 lampret
// MP3 version.
//
// Revision 1.1.1.1 2001/10/06 10:18:35 igorm
// no message
//
// Revision 1.2 2001/08/09 13:39:33 lampret
// Major clean-up.
//
// Revision 1.1 2001/07/20 00:46:03 lampret
// Development version of RTL. Libraries are missing.
//
//
 
// synopsys translate_off
`include "timescale.v"
// synopsys translate_on
`include "or1200_defines.v"
 
`ifdef OR1200_ASIC_MULTP2_32X32
 
module PP_LOW ( ONEPOS, ONENEG, TWONEG, INA, INB, PPBIT );
input ONEPOS;
input ONENEG;
input TWONEG;
input INA;
input INB;
output PPBIT;
assign PPBIT = (ONEPOS & INA) | (ONENEG & INB) | TWONEG;
endmodule
 
 
module PP_MIDDLE ( ONEPOS, ONENEG, TWOPOS, TWONEG, INA, INB, INC, IND, PPBIT );
input ONEPOS;
input ONENEG;
input TWOPOS;
input TWONEG;
input INA;
input INB;
input INC;
input IND;
output PPBIT;
assign PPBIT = ~ (( ~ (INA & TWOPOS)) & ( ~ (INB & TWONEG)) & ( ~ (INC & ONEPOS)) & ( ~ (IND & ONENEG)));
endmodule
 
 
module PP_HIGH ( ONEPOS, ONENEG, TWOPOS, TWONEG, INA, INB, PPBIT );
input ONEPOS;
input ONENEG;
input TWOPOS;
input TWONEG;
input INA;
input INB;
output PPBIT;
assign PPBIT = ~ ((INA & ONEPOS) | (INB & ONENEG) | (INA & TWOPOS) | (INB & TWONEG));
endmodule
 
 
module R_GATE ( INA, INB, INC, PPBIT );
input INA;
input INB;
input INC;
output PPBIT;
assign PPBIT = ( ~ (INA & INB)) & INC;
endmodule
 
 
module DECODER ( INA, INB, INC, TWOPOS, TWONEG, ONEPOS, ONENEG );
input INA;
input INB;
input INC;
output TWOPOS;
output TWONEG;
output ONEPOS;
output ONENEG;
assign TWOPOS = ~ ( ~ (INA & INB & ( ~ INC)));
assign TWONEG = ~ ( ~ (( ~ INA) & ( ~ INB) & INC));
assign ONEPOS = (( ~ INA) & INB & ( ~ INC)) | (( ~ INC) & ( ~ INB) & INA);
assign ONENEG = (INA & ( ~ INB) & INC) | (INC & INB & ( ~ INA));
endmodule
 
 
module BOOTHCODER_33_32 ( OPA, OPB, SUMMAND );
input [0:32] OPA;
input [0:31] OPB;
output [0:575] SUMMAND;
wire [0:32] INV_MULTIPLICAND;
wire [0:63] INT_MULTIPLIER;
wire LOGIC_ONE, LOGIC_ZERO;
assign LOGIC_ONE = 1;
assign LOGIC_ZERO = 0;
DECODER DEC_0 (.INA (LOGIC_ZERO) , .INB (OPB[0]) , .INC (OPB[1]) , .TWOPOS (INT_MULTIPLIER[0]) , .TWONEG (INT_MULTIPLIER[1]) , .ONEPOS (INT_MULTIPLIER[2]) , .ONENEG (INT_MULTIPLIER[3]) );
assign INV_MULTIPLICAND[0] = ~ OPA[0];
PP_LOW PPL_0 (.INA (OPA[0]) , .INB (INV_MULTIPLICAND[0]) , .TWONEG (INT_MULTIPLIER[1]) , .ONEPOS (INT_MULTIPLIER[2]) , .ONENEG (INT_MULTIPLIER[3]) , .PPBIT (SUMMAND[0]) );
R_GATE RGATE_0 (.INA (LOGIC_ZERO) , .INB (OPB[0]) , .INC (OPB[1]) , .PPBIT (SUMMAND[1]) );
assign INV_MULTIPLICAND[1] = ~ OPA[1];
PP_MIDDLE PPM_0 (.INA (OPA[0]) , .INB (INV_MULTIPLICAND[0]) , .INC (OPA[1]) , .IND (INV_MULTIPLICAND[1]) , .TWOPOS (INT_MULTIPLIER[0]) , .TWONEG (INT_MULTIPLIER[1]) , .ONEPOS (INT_MULTIPLIER[2]) , .ONENEG (INT_MULTIPLIER[3]) , .PPBIT (SUMMAND[2]) );
assign INV_MULTIPLICAND[2] = ~ OPA[2];
PP_MIDDLE PPM_1 (.INA (OPA[1]) , .INB (INV_MULTIPLICAND[1]) , .INC (OPA[2]) , .IND (INV_MULTIPLICAND[2]) , .TWOPOS (INT_MULTIPLIER[0]) , .TWONEG (INT_MULTIPLIER[1]) , .ONEPOS (INT_MULTIPLIER[2]) , .ONENEG (INT_MULTIPLIER[3]) , .PPBIT (SUMMAND[3]) );
assign INV_MULTIPLICAND[3] = ~ OPA[3];
PP_MIDDLE PPM_2 (.INA (OPA[2]) , .INB (INV_MULTIPLICAND[2]) , .INC (OPA[3]) , .IND (INV_MULTIPLICAND[3]) , .TWOPOS (INT_MULTIPLIER[0]) , .TWONEG (INT_MULTIPLIER[1]) , .ONEPOS (INT_MULTIPLIER[2]) , .ONENEG (INT_MULTIPLIER[3]) , .PPBIT (SUMMAND[6]) );
assign INV_MULTIPLICAND[4] = ~ OPA[4];
PP_MIDDLE PPM_3 (.INA (OPA[3]) , .INB (INV_MULTIPLICAND[3]) , .INC (OPA[4]) , .IND (INV_MULTIPLICAND[4]) , .TWOPOS (INT_MULTIPLIER[0]) , .TWONEG (INT_MULTIPLIER[1]) , .ONEPOS (INT_MULTIPLIER[2]) , .ONENEG (INT_MULTIPLIER[3]) , .PPBIT (SUMMAND[8]) );
assign INV_MULTIPLICAND[5] = ~ OPA[5];
PP_MIDDLE PPM_4 (.INA (OPA[4]) , .INB (INV_MULTIPLICAND[4]) , .INC (OPA[5]) , .IND (INV_MULTIPLICAND[5]) , .TWOPOS (INT_MULTIPLIER[0]) , .TWONEG (INT_MULTIPLIER[1]) , .ONEPOS (INT_MULTIPLIER[2]) , .ONENEG (INT_MULTIPLIER[3]) , .PPBIT (SUMMAND[12]) );
assign INV_MULTIPLICAND[6] = ~ OPA[6];
PP_MIDDLE PPM_5 (.INA (OPA[5]) , .INB (INV_MULTIPLICAND[5]) , .INC (OPA[6]) , .IND (INV_MULTIPLICAND[6]) , .TWOPOS (INT_MULTIPLIER[0]) , .TWONEG (INT_MULTIPLIER[1]) , .ONEPOS (INT_MULTIPLIER[2]) , .ONENEG (INT_MULTIPLIER[3]) , .PPBIT (SUMMAND[15]) );
assign INV_MULTIPLICAND[7] = ~ OPA[7];
PP_MIDDLE PPM_6 (.INA (OPA[6]) , .INB (INV_MULTIPLICAND[6]) , .INC (OPA[7]) , .IND (INV_MULTIPLICAND[7]) , .TWOPOS (INT_MULTIPLIER[0]) , .TWONEG (INT_MULTIPLIER[1]) , .ONEPOS (INT_MULTIPLIER[2]) , .ONENEG (INT_MULTIPLIER[3]) , .PPBIT (SUMMAND[20]) );
assign INV_MULTIPLICAND[8] = ~ OPA[8];
PP_MIDDLE PPM_7 (.INA (OPA[7]) , .INB (INV_MULTIPLICAND[7]) , .INC (OPA[8]) , .IND (INV_MULTIPLICAND[8]) , .TWOPOS (INT_MULTIPLIER[0]) , .TWONEG (INT_MULTIPLIER[1]) , .ONEPOS (INT_MULTIPLIER[2]) , .ONENEG (INT_MULTIPLIER[3]) , .PPBIT (SUMMAND[24]) );
assign INV_MULTIPLICAND[9] = ~ OPA[9];
PP_MIDDLE PPM_8 (.INA (OPA[8]) , .INB (INV_MULTIPLICAND[8]) , .INC (OPA[9]) , .IND (INV_MULTIPLICAND[9]) , .TWOPOS (INT_MULTIPLIER[0]) , .TWONEG (INT_MULTIPLIER[1]) , .ONEPOS (INT_MULTIPLIER[2]) , .ONENEG (INT_MULTIPLIER[3]) , .PPBIT (SUMMAND[30]) );
assign INV_MULTIPLICAND[10] = ~ OPA[10];
PP_MIDDLE PPM_9 (.INA (OPA[9]) , .INB (INV_MULTIPLICAND[9]) , .INC (OPA[10]) , .IND (INV_MULTIPLICAND[10]) , .TWOPOS (INT_MULTIPLIER[0]) , .TWONEG (INT_MULTIPLIER[1]) , .ONEPOS (INT_MULTIPLIER[2]) , .ONENEG (INT_MULTIPLIER[3]) , .PPBIT (SUMMAND[35]) );
assign INV_MULTIPLICAND[11] = ~ OPA[11];
PP_MIDDLE PPM_10 (.INA (OPA[10]) , .INB (INV_MULTIPLICAND[10]) , .INC (OPA[11]) , .IND (INV_MULTIPLICAND[11]) , .TWOPOS (INT_MULTIPLIER[0]) , .TWONEG (INT_MULTIPLIER[1]) , .ONEPOS (INT_MULTIPLIER[2]) , .ONENEG (INT_MULTIPLIER[3]) , .PPBIT (SUMMAND[42]) );
assign INV_MULTIPLICAND[12] = ~ OPA[12];
PP_MIDDLE PPM_11 (.INA (OPA[11]) , .INB (INV_MULTIPLICAND[11]) , .INC (OPA[12]) , .IND (INV_MULTIPLICAND[12]) , .TWOPOS (INT_MULTIPLIER[0]) , .TWONEG (INT_MULTIPLIER[1]) , .ONEPOS (INT_MULTIPLIER[2]) , .ONENEG (INT_MULTIPLIER[3]) , .PPBIT (SUMMAND[48]) );
assign INV_MULTIPLICAND[13] = ~ OPA[13];
PP_MIDDLE PPM_12 (.INA (OPA[12]) , .INB (INV_MULTIPLICAND[12]) , .INC (OPA[13]) , .IND (INV_MULTIPLICAND[13]) , .TWOPOS (INT_MULTIPLIER[0]) , .TWONEG (INT_MULTIPLIER[1]) , .ONEPOS (INT_MULTIPLIER[2]) , .ONENEG (INT_MULTIPLIER[3]) , .PPBIT (SUMMAND[56]) );
assign INV_MULTIPLICAND[14] = ~ OPA[14];
PP_MIDDLE PPM_13 (.INA (OPA[13]) , .INB (INV_MULTIPLICAND[13]) , .INC (OPA[14]) , .IND (INV_MULTIPLICAND[14]) , .TWOPOS (INT_MULTIPLIER[0]) , .TWONEG (INT_MULTIPLIER[1]) , .ONEPOS (INT_MULTIPLIER[2]) , .ONENEG (INT_MULTIPLIER[3]) , .PPBIT (SUMMAND[63]) );
assign INV_MULTIPLICAND[15] = ~ OPA[15];
PP_MIDDLE PPM_14 (.INA (OPA[14]) , .INB (INV_MULTIPLICAND[14]) , .INC (OPA[15]) , .IND (INV_MULTIPLICAND[15]) , .TWOPOS (INT_MULTIPLIER[0]) , .TWONEG (INT_MULTIPLIER[1]) , .ONEPOS (INT_MULTIPLIER[2]) , .ONENEG (INT_MULTIPLIER[3]) , .PPBIT (SUMMAND[72]) );
assign INV_MULTIPLICAND[16] = ~ OPA[16];
PP_MIDDLE PPM_15 (.INA (OPA[15]) , .INB (INV_MULTIPLICAND[15]) , .INC (OPA[16]) , .IND (INV_MULTIPLICAND[16]) , .TWOPOS (INT_MULTIPLIER[0]) , .TWONEG (INT_MULTIPLIER[1]) , .ONEPOS (INT_MULTIPLIER[2]) , .ONENEG (INT_MULTIPLIER[3]) , .PPBIT (SUMMAND[80]) );
assign INV_MULTIPLICAND[17] = ~ OPA[17];
PP_MIDDLE PPM_16 (.INA (OPA[16]) , .INB (INV_MULTIPLICAND[16]) , .INC (OPA[17]) , .IND (INV_MULTIPLICAND[17]) , .TWOPOS (INT_MULTIPLIER[0]) , .TWONEG (INT_MULTIPLIER[1]) , .ONEPOS (INT_MULTIPLIER[2]) , .ONENEG (INT_MULTIPLIER[3]) , .PPBIT (SUMMAND[90]) );
assign INV_MULTIPLICAND[18] = ~ OPA[18];
PP_MIDDLE PPM_17 (.INA (OPA[17]) , .INB (INV_MULTIPLICAND[17]) , .INC (OPA[18]) , .IND (INV_MULTIPLICAND[18]) , .TWOPOS (INT_MULTIPLIER[0]) , .TWONEG (INT_MULTIPLIER[1]) , .ONEPOS (INT_MULTIPLIER[2]) , .ONENEG (INT_MULTIPLIER[3]) , .PPBIT (SUMMAND[99]) );
assign INV_MULTIPLICAND[19] = ~ OPA[19];
PP_MIDDLE PPM_18 (.INA (OPA[18]) , .INB (INV_MULTIPLICAND[18]) , .INC (OPA[19]) , .IND (INV_MULTIPLICAND[19]) , .TWOPOS (INT_MULTIPLIER[0]) , .TWONEG (INT_MULTIPLIER[1]) , .ONEPOS (INT_MULTIPLIER[2]) , .ONENEG (INT_MULTIPLIER[3]) , .PPBIT (SUMMAND[110]) );
assign INV_MULTIPLICAND[20] = ~ OPA[20];
PP_MIDDLE PPM_19 (.INA (OPA[19]) , .INB (INV_MULTIPLICAND[19]) , .INC (OPA[20]) , .IND (INV_MULTIPLICAND[20]) , .TWOPOS (INT_MULTIPLIER[0]) , .TWONEG (INT_MULTIPLIER[1]) , .ONEPOS (INT_MULTIPLIER[2]) , .ONENEG (INT_MULTIPLIER[3]) , .PPBIT (SUMMAND[120]) );
assign INV_MULTIPLICAND[21] = ~ OPA[21];
PP_MIDDLE PPM_20 (.INA (OPA[20]) , .INB (INV_MULTIPLICAND[20]) , .INC (OPA[21]) , .IND (INV_MULTIPLICAND[21]) , .TWOPOS (INT_MULTIPLIER[0]) , .TWONEG (INT_MULTIPLIER[1]) , .ONEPOS (INT_MULTIPLIER[2]) , .ONENEG (INT_MULTIPLIER[3]) , .PPBIT (SUMMAND[132]) );
assign INV_MULTIPLICAND[22] = ~ OPA[22];
PP_MIDDLE PPM_21 (.INA (OPA[21]) , .INB (INV_MULTIPLICAND[21]) , .INC (OPA[22]) , .IND (INV_MULTIPLICAND[22]) , .TWOPOS (INT_MULTIPLIER[0]) , .TWONEG (INT_MULTIPLIER[1]) , .ONEPOS (INT_MULTIPLIER[2]) , .ONENEG (INT_MULTIPLIER[3]) , .PPBIT (SUMMAND[143]) );
assign INV_MULTIPLICAND[23] = ~ OPA[23];
PP_MIDDLE PPM_22 (.INA (OPA[22]) , .INB (INV_MULTIPLICAND[22]) , .INC (OPA[23]) , .IND (INV_MULTIPLICAND[23]) , .TWOPOS (INT_MULTIPLIER[0]) , .TWONEG (INT_MULTIPLIER[1]) , .ONEPOS (INT_MULTIPLIER[2]) , .ONENEG (INT_MULTIPLIER[3]) , .PPBIT (SUMMAND[156]) );
assign INV_MULTIPLICAND[24] = ~ OPA[24];
PP_MIDDLE PPM_23 (.INA (OPA[23]) , .INB (INV_MULTIPLICAND[23]) , .INC (OPA[24]) , .IND (INV_MULTIPLICAND[24]) , .TWOPOS (INT_MULTIPLIER[0]) , .TWONEG (INT_MULTIPLIER[1]) , .ONEPOS (INT_MULTIPLIER[2]) , .ONENEG (INT_MULTIPLIER[3]) , .PPBIT (SUMMAND[168]) );
assign INV_MULTIPLICAND[25] = ~ OPA[25];
PP_MIDDLE PPM_24 (.INA (OPA[24]) , .INB (INV_MULTIPLICAND[24]) , .INC (OPA[25]) , .IND (INV_MULTIPLICAND[25]) , .TWOPOS (INT_MULTIPLIER[0]) , .TWONEG (INT_MULTIPLIER[1]) , .ONEPOS (INT_MULTIPLIER[2]) , .ONENEG (INT_MULTIPLIER[3]) , .PPBIT (SUMMAND[182]) );
assign INV_MULTIPLICAND[26] = ~ OPA[26];
PP_MIDDLE PPM_25 (.INA (OPA[25]) , .INB (INV_MULTIPLICAND[25]) , .INC (OPA[26]) , .IND (INV_MULTIPLICAND[26]) , .TWOPOS (INT_MULTIPLIER[0]) , .TWONEG (INT_MULTIPLIER[1]) , .ONEPOS (INT_MULTIPLIER[2]) , .ONENEG (INT_MULTIPLIER[3]) , .PPBIT (SUMMAND[195]) );
assign INV_MULTIPLICAND[27] = ~ OPA[27];
PP_MIDDLE PPM_26 (.INA (OPA[26]) , .INB (INV_MULTIPLICAND[26]) , .INC (OPA[27]) , .IND (INV_MULTIPLICAND[27]) , .TWOPOS (INT_MULTIPLIER[0]) , .TWONEG (INT_MULTIPLIER[1]) , .ONEPOS (INT_MULTIPLIER[2]) , .ONENEG (INT_MULTIPLIER[3]) , .PPBIT (SUMMAND[210]) );
assign INV_MULTIPLICAND[28] = ~ OPA[28];
PP_MIDDLE PPM_27 (.INA (OPA[27]) , .INB (INV_MULTIPLICAND[27]) , .INC (OPA[28]) , .IND (INV_MULTIPLICAND[28]) , .TWOPOS (INT_MULTIPLIER[0]) , .TWONEG (INT_MULTIPLIER[1]) , .ONEPOS (INT_MULTIPLIER[2]) , .ONENEG (INT_MULTIPLIER[3]) , .PPBIT (SUMMAND[224]) );
assign INV_MULTIPLICAND[29] = ~ OPA[29];
PP_MIDDLE PPM_28 (.INA (OPA[28]) , .INB (INV_MULTIPLICAND[28]) , .INC (OPA[29]) , .IND (INV_MULTIPLICAND[29]) , .TWOPOS (INT_MULTIPLIER[0]) , .TWONEG (INT_MULTIPLIER[1]) , .ONEPOS (INT_MULTIPLIER[2]) , .ONENEG (INT_MULTIPLIER[3]) , .PPBIT (SUMMAND[240]) );
assign INV_MULTIPLICAND[30] = ~ OPA[30];
PP_MIDDLE PPM_29 (.INA (OPA[29]) , .INB (INV_MULTIPLICAND[29]) , .INC (OPA[30]) , .IND (INV_MULTIPLICAND[30]) , .TWOPOS (INT_MULTIPLIER[0]) , .TWONEG (INT_MULTIPLIER[1]) , .ONEPOS (INT_MULTIPLIER[2]) , .ONENEG (INT_MULTIPLIER[3]) , .PPBIT (SUMMAND[255]) );
assign INV_MULTIPLICAND[31] = ~ OPA[31];
PP_MIDDLE PPM_30 (.INA (OPA[30]) , .INB (INV_MULTIPLICAND[30]) , .INC (OPA[31]) , .IND (INV_MULTIPLICAND[31]) , .TWOPOS (INT_MULTIPLIER[0]) , .TWONEG (INT_MULTIPLIER[1]) , .ONEPOS (INT_MULTIPLIER[2]) , .ONENEG (INT_MULTIPLIER[3]) , .PPBIT (SUMMAND[272]) );
assign INV_MULTIPLICAND[32] = ~ OPA[32];
PP_MIDDLE PPM_31 (.INA (OPA[31]) , .INB (INV_MULTIPLICAND[31]) , .INC (OPA[32]) , .IND (INV_MULTIPLICAND[32]) , .TWOPOS (INT_MULTIPLIER[0]) , .TWONEG (INT_MULTIPLIER[1]) , .ONEPOS (INT_MULTIPLIER[2]) , .ONENEG (INT_MULTIPLIER[3]) , .PPBIT (SUMMAND[288]) );
PP_HIGH PPH_0 (.INA (OPA[32]) , .INB (INV_MULTIPLICAND[32]) , .TWOPOS (INT_MULTIPLIER[0]) , .TWONEG (INT_MULTIPLIER[1]) , .ONEPOS (INT_MULTIPLIER[2]) , .ONENEG (INT_MULTIPLIER[3]) , .PPBIT (SUMMAND[304]) );
assign SUMMAND[305] = 1;
DECODER DEC_1 (.INA (OPB[1]) , .INB (OPB[2]) , .INC (OPB[3]) , .TWOPOS (INT_MULTIPLIER[4]) , .TWONEG (INT_MULTIPLIER[5]) , .ONEPOS (INT_MULTIPLIER[6]) , .ONENEG (INT_MULTIPLIER[7]) );
PP_LOW PPL_1 (.INA (OPA[0]) , .INB (INV_MULTIPLICAND[0]) , .TWONEG (INT_MULTIPLIER[5]) , .ONEPOS (INT_MULTIPLIER[6]) , .ONENEG (INT_MULTIPLIER[7]) , .PPBIT (SUMMAND[4]) );
R_GATE RGATE_1 (.INA (OPB[1]) , .INB (OPB[2]) , .INC (OPB[3]) , .PPBIT (SUMMAND[5]) );
PP_MIDDLE PPM_32 (.INA (OPA[0]) , .INB (INV_MULTIPLICAND[0]) , .INC (OPA[1]) , .IND (INV_MULTIPLICAND[1]) , .TWOPOS (INT_MULTIPLIER[4]) , .TWONEG (INT_MULTIPLIER[5]) , .ONEPOS (INT_MULTIPLIER[6]) , .ONENEG (INT_MULTIPLIER[7]) , .PPBIT (SUMMAND[7]) );
PP_MIDDLE PPM_33 (.INA (OPA[1]) , .INB (INV_MULTIPLICAND[1]) , .INC (OPA[2]) , .IND (INV_MULTIPLICAND[2]) , .TWOPOS (INT_MULTIPLIER[4]) , .TWONEG (INT_MULTIPLIER[5]) , .ONEPOS (INT_MULTIPLIER[6]) , .ONENEG (INT_MULTIPLIER[7]) , .PPBIT (SUMMAND[9]) );
PP_MIDDLE PPM_34 (.INA (OPA[2]) , .INB (INV_MULTIPLICAND[2]) , .INC (OPA[3]) , .IND (INV_MULTIPLICAND[3]) , .TWOPOS (INT_MULTIPLIER[4]) , .TWONEG (INT_MULTIPLIER[5]) , .ONEPOS (INT_MULTIPLIER[6]) , .ONENEG (INT_MULTIPLIER[7]) , .PPBIT (SUMMAND[13]) );
PP_MIDDLE PPM_35 (.INA (OPA[3]) , .INB (INV_MULTIPLICAND[3]) , .INC (OPA[4]) , .IND (INV_MULTIPLICAND[4]) , .TWOPOS (INT_MULTIPLIER[4]) , .TWONEG (INT_MULTIPLIER[5]) , .ONEPOS (INT_MULTIPLIER[6]) , .ONENEG (INT_MULTIPLIER[7]) , .PPBIT (SUMMAND[16]) );
PP_MIDDLE PPM_36 (.INA (OPA[4]) , .INB (INV_MULTIPLICAND[4]) , .INC (OPA[5]) , .IND (INV_MULTIPLICAND[5]) , .TWOPOS (INT_MULTIPLIER[4]) , .TWONEG (INT_MULTIPLIER[5]) , .ONEPOS (INT_MULTIPLIER[6]) , .ONENEG (INT_MULTIPLIER[7]) , .PPBIT (SUMMAND[21]) );
PP_MIDDLE PPM_37 (.INA (OPA[5]) , .INB (INV_MULTIPLICAND[5]) , .INC (OPA[6]) , .IND (INV_MULTIPLICAND[6]) , .TWOPOS (INT_MULTIPLIER[4]) , .TWONEG (INT_MULTIPLIER[5]) , .ONEPOS (INT_MULTIPLIER[6]) , .ONENEG (INT_MULTIPLIER[7]) , .PPBIT (SUMMAND[25]) );
PP_MIDDLE PPM_38 (.INA (OPA[6]) , .INB (INV_MULTIPLICAND[6]) , .INC (OPA[7]) , .IND (INV_MULTIPLICAND[7]) , .TWOPOS (INT_MULTIPLIER[4]) , .TWONEG (INT_MULTIPLIER[5]) , .ONEPOS (INT_MULTIPLIER[6]) , .ONENEG (INT_MULTIPLIER[7]) , .PPBIT (SUMMAND[31]) );
PP_MIDDLE PPM_39 (.INA (OPA[7]) , .INB (INV_MULTIPLICAND[7]) , .INC (OPA[8]) , .IND (INV_MULTIPLICAND[8]) , .TWOPOS (INT_MULTIPLIER[4]) , .TWONEG (INT_MULTIPLIER[5]) , .ONEPOS (INT_MULTIPLIER[6]) , .ONENEG (INT_MULTIPLIER[7]) , .PPBIT (SUMMAND[36]) );
PP_MIDDLE PPM_40 (.INA (OPA[8]) , .INB (INV_MULTIPLICAND[8]) , .INC (OPA[9]) , .IND (INV_MULTIPLICAND[9]) , .TWOPOS (INT_MULTIPLIER[4]) , .TWONEG (INT_MULTIPLIER[5]) , .ONEPOS (INT_MULTIPLIER[6]) , .ONENEG (INT_MULTIPLIER[7]) , .PPBIT (SUMMAND[43]) );
PP_MIDDLE PPM_41 (.INA (OPA[9]) , .INB (INV_MULTIPLICAND[9]) , .INC (OPA[10]) , .IND (INV_MULTIPLICAND[10]) , .TWOPOS (INT_MULTIPLIER[4]) , .TWONEG (INT_MULTIPLIER[5]) , .ONEPOS (INT_MULTIPLIER[6]) , .ONENEG (INT_MULTIPLIER[7]) , .PPBIT (SUMMAND[49]) );
PP_MIDDLE PPM_42 (.INA (OPA[10]) , .INB (INV_MULTIPLICAND[10]) , .INC (OPA[11]) , .IND (INV_MULTIPLICAND[11]) , .TWOPOS (INT_MULTIPLIER[4]) , .TWONEG (INT_MULTIPLIER[5]) , .ONEPOS (INT_MULTIPLIER[6]) , .ONENEG (INT_MULTIPLIER[7]) , .PPBIT (SUMMAND[57]) );
PP_MIDDLE PPM_43 (.INA (OPA[11]) , .INB (INV_MULTIPLICAND[11]) , .INC (OPA[12]) , .IND (INV_MULTIPLICAND[12]) , .TWOPOS (INT_MULTIPLIER[4]) , .TWONEG (INT_MULTIPLIER[5]) , .ONEPOS (INT_MULTIPLIER[6]) , .ONENEG (INT_MULTIPLIER[7]) , .PPBIT (SUMMAND[64]) );
PP_MIDDLE PPM_44 (.INA (OPA[12]) , .INB (INV_MULTIPLICAND[12]) , .INC (OPA[13]) , .IND (INV_MULTIPLICAND[13]) , .TWOPOS (INT_MULTIPLIER[4]) , .TWONEG (INT_MULTIPLIER[5]) , .ONEPOS (INT_MULTIPLIER[6]) , .ONENEG (INT_MULTIPLIER[7]) , .PPBIT (SUMMAND[73]) );
PP_MIDDLE PPM_45 (.INA (OPA[13]) , .INB (INV_MULTIPLICAND[13]) , .INC (OPA[14]) , .IND (INV_MULTIPLICAND[14]) , .TWOPOS (INT_MULTIPLIER[4]) , .TWONEG (INT_MULTIPLIER[5]) , .ONEPOS (INT_MULTIPLIER[6]) , .ONENEG (INT_MULTIPLIER[7]) , .PPBIT (SUMMAND[81]) );
PP_MIDDLE PPM_46 (.INA (OPA[14]) , .INB (INV_MULTIPLICAND[14]) , .INC (OPA[15]) , .IND (INV_MULTIPLICAND[15]) , .TWOPOS (INT_MULTIPLIER[4]) , .TWONEG (INT_MULTIPLIER[5]) , .ONEPOS (INT_MULTIPLIER[6]) , .ONENEG (INT_MULTIPLIER[7]) , .PPBIT (SUMMAND[91]) );
PP_MIDDLE PPM_47 (.INA (OPA[15]) , .INB (INV_MULTIPLICAND[15]) , .INC (OPA[16]) , .IND (INV_MULTIPLICAND[16]) , .TWOPOS (INT_MULTIPLIER[4]) , .TWONEG (INT_MULTIPLIER[5]) , .ONEPOS (INT_MULTIPLIER[6]) , .ONENEG (INT_MULTIPLIER[7]) , .PPBIT (SUMMAND[100]) );
PP_MIDDLE PPM_48 (.INA (OPA[16]) , .INB (INV_MULTIPLICAND[16]) , .INC (OPA[17]) , .IND (INV_MULTIPLICAND[17]) , .TWOPOS (INT_MULTIPLIER[4]) , .TWONEG (INT_MULTIPLIER[5]) , .ONEPOS (INT_MULTIPLIER[6]) , .ONENEG (INT_MULTIPLIER[7]) , .PPBIT (SUMMAND[111]) );
PP_MIDDLE PPM_49 (.INA (OPA[17]) , .INB (INV_MULTIPLICAND[17]) , .INC (OPA[18]) , .IND (INV_MULTIPLICAND[18]) , .TWOPOS (INT_MULTIPLIER[4]) , .TWONEG (INT_MULTIPLIER[5]) , .ONEPOS (INT_MULTIPLIER[6]) , .ONENEG (INT_MULTIPLIER[7]) , .PPBIT (SUMMAND[121]) );
PP_MIDDLE PPM_50 (.INA (OPA[18]) , .INB (INV_MULTIPLICAND[18]) , .INC (OPA[19]) , .IND (INV_MULTIPLICAND[19]) , .TWOPOS (INT_MULTIPLIER[4]) , .TWONEG (INT_MULTIPLIER[5]) , .ONEPOS (INT_MULTIPLIER[6]) , .ONENEG (INT_MULTIPLIER[7]) , .PPBIT (SUMMAND[133]) );
PP_MIDDLE PPM_51 (.INA (OPA[19]) , .INB (INV_MULTIPLICAND[19]) , .INC (OPA[20]) , .IND (INV_MULTIPLICAND[20]) , .TWOPOS (INT_MULTIPLIER[4]) , .TWONEG (INT_MULTIPLIER[5]) , .ONEPOS (INT_MULTIPLIER[6]) , .ONENEG (INT_MULTIPLIER[7]) , .PPBIT (SUMMAND[144]) );
PP_MIDDLE PPM_52 (.INA (OPA[20]) , .INB (INV_MULTIPLICAND[20]) , .INC (OPA[21]) , .IND (INV_MULTIPLICAND[21]) , .TWOPOS (INT_MULTIPLIER[4]) , .TWONEG (INT_MULTIPLIER[5]) , .ONEPOS (INT_MULTIPLIER[6]) , .ONENEG (INT_MULTIPLIER[7]) , .PPBIT (SUMMAND[157]) );
PP_MIDDLE PPM_53 (.INA (OPA[21]) , .INB (INV_MULTIPLICAND[21]) , .INC (OPA[22]) , .IND (INV_MULTIPLICAND[22]) , .TWOPOS (INT_MULTIPLIER[4]) , .TWONEG (INT_MULTIPLIER[5]) , .ONEPOS (INT_MULTIPLIER[6]) , .ONENEG (INT_MULTIPLIER[7]) , .PPBIT (SUMMAND[169]) );
PP_MIDDLE PPM_54 (.INA (OPA[22]) , .INB (INV_MULTIPLICAND[22]) , .INC (OPA[23]) , .IND (INV_MULTIPLICAND[23]) , .TWOPOS (INT_MULTIPLIER[4]) , .TWONEG (INT_MULTIPLIER[5]) , .ONEPOS (INT_MULTIPLIER[6]) , .ONENEG (INT_MULTIPLIER[7]) , .PPBIT (SUMMAND[183]) );
PP_MIDDLE PPM_55 (.INA (OPA[23]) , .INB (INV_MULTIPLICAND[23]) , .INC (OPA[24]) , .IND (INV_MULTIPLICAND[24]) , .TWOPOS (INT_MULTIPLIER[4]) , .TWONEG (INT_MULTIPLIER[5]) , .ONEPOS (INT_MULTIPLIER[6]) , .ONENEG (INT_MULTIPLIER[7]) , .PPBIT (SUMMAND[196]) );
PP_MIDDLE PPM_56 (.INA (OPA[24]) , .INB (INV_MULTIPLICAND[24]) , .INC (OPA[25]) , .IND (INV_MULTIPLICAND[25]) , .TWOPOS (INT_MULTIPLIER[4]) , .TWONEG (INT_MULTIPLIER[5]) , .ONEPOS (INT_MULTIPLIER[6]) , .ONENEG (INT_MULTIPLIER[7]) , .PPBIT (SUMMAND[211]) );
PP_MIDDLE PPM_57 (.INA (OPA[25]) , .INB (INV_MULTIPLICAND[25]) , .INC (OPA[26]) , .IND (INV_MULTIPLICAND[26]) , .TWOPOS (INT_MULTIPLIER[4]) , .TWONEG (INT_MULTIPLIER[5]) , .ONEPOS (INT_MULTIPLIER[6]) , .ONENEG (INT_MULTIPLIER[7]) , .PPBIT (SUMMAND[225]) );
PP_MIDDLE PPM_58 (.INA (OPA[26]) , .INB (INV_MULTIPLICAND[26]) , .INC (OPA[27]) , .IND (INV_MULTIPLICAND[27]) , .TWOPOS (INT_MULTIPLIER[4]) , .TWONEG (INT_MULTIPLIER[5]) , .ONEPOS (INT_MULTIPLIER[6]) , .ONENEG (INT_MULTIPLIER[7]) , .PPBIT (SUMMAND[241]) );
PP_MIDDLE PPM_59 (.INA (OPA[27]) , .INB (INV_MULTIPLICAND[27]) , .INC (OPA[28]) , .IND (INV_MULTIPLICAND[28]) , .TWOPOS (INT_MULTIPLIER[4]) , .TWONEG (INT_MULTIPLIER[5]) , .ONEPOS (INT_MULTIPLIER[6]) , .ONENEG (INT_MULTIPLIER[7]) , .PPBIT (SUMMAND[256]) );
PP_MIDDLE PPM_60 (.INA (OPA[28]) , .INB (INV_MULTIPLICAND[28]) , .INC (OPA[29]) , .IND (INV_MULTIPLICAND[29]) , .TWOPOS (INT_MULTIPLIER[4]) , .TWONEG (INT_MULTIPLIER[5]) , .ONEPOS (INT_MULTIPLIER[6]) , .ONENEG (INT_MULTIPLIER[7]) , .PPBIT (SUMMAND[273]) );
PP_MIDDLE PPM_61 (.INA (OPA[29]) , .INB (INV_MULTIPLICAND[29]) , .INC (OPA[30]) , .IND (INV_MULTIPLICAND[30]) , .TWOPOS (INT_MULTIPLIER[4]) , .TWONEG (INT_MULTIPLIER[5]) , .ONEPOS (INT_MULTIPLIER[6]) , .ONENEG (INT_MULTIPLIER[7]) , .PPBIT (SUMMAND[289]) );
PP_MIDDLE PPM_62 (.INA (OPA[30]) , .INB (INV_MULTIPLICAND[30]) , .INC (OPA[31]) , .IND (INV_MULTIPLICAND[31]) , .TWOPOS (INT_MULTIPLIER[4]) , .TWONEG (INT_MULTIPLIER[5]) , .ONEPOS (INT_MULTIPLIER[6]) , .ONENEG (INT_MULTIPLIER[7]) , .PPBIT (SUMMAND[306]) );
PP_MIDDLE PPM_63 (.INA (OPA[31]) , .INB (INV_MULTIPLICAND[31]) , .INC (OPA[32]) , .IND (INV_MULTIPLICAND[32]) , .TWOPOS (INT_MULTIPLIER[4]) , .TWONEG (INT_MULTIPLIER[5]) , .ONEPOS (INT_MULTIPLIER[6]) , .ONENEG (INT_MULTIPLIER[7]) , .PPBIT (SUMMAND[321]) );
assign SUMMAND[322] = LOGIC_ONE;
PP_HIGH PPH_1 (.INA (OPA[32]) , .INB (INV_MULTIPLICAND[32]) , .TWOPOS (INT_MULTIPLIER[4]) , .TWONEG (INT_MULTIPLIER[5]) , .ONEPOS (INT_MULTIPLIER[6]) , .ONENEG (INT_MULTIPLIER[7]) , .PPBIT (SUMMAND[337]) );
DECODER DEC_2 (.INA (OPB[3]) , .INB (OPB[4]) , .INC (OPB[5]) , .TWOPOS (INT_MULTIPLIER[8]) , .TWONEG (INT_MULTIPLIER[9]) , .ONEPOS (INT_MULTIPLIER[10]) , .ONENEG (INT_MULTIPLIER[11]) );
PP_LOW PPL_2 (.INA (OPA[0]) , .INB (INV_MULTIPLICAND[0]) , .TWONEG (INT_MULTIPLIER[9]) , .ONEPOS (INT_MULTIPLIER[10]) , .ONENEG (INT_MULTIPLIER[11]) , .PPBIT (SUMMAND[10]) );
R_GATE RGATE_2 (.INA (OPB[3]) , .INB (OPB[4]) , .INC (OPB[5]) , .PPBIT (SUMMAND[11]) );
PP_MIDDLE PPM_64 (.INA (OPA[0]) , .INB (INV_MULTIPLICAND[0]) , .INC (OPA[1]) , .IND (INV_MULTIPLICAND[1]) , .TWOPOS (INT_MULTIPLIER[8]) , .TWONEG (INT_MULTIPLIER[9]) , .ONEPOS (INT_MULTIPLIER[10]) , .ONENEG (INT_MULTIPLIER[11]) , .PPBIT (SUMMAND[14]) );
PP_MIDDLE PPM_65 (.INA (OPA[1]) , .INB (INV_MULTIPLICAND[1]) , .INC (OPA[2]) , .IND (INV_MULTIPLICAND[2]) , .TWOPOS (INT_MULTIPLIER[8]) , .TWONEG (INT_MULTIPLIER[9]) , .ONEPOS (INT_MULTIPLIER[10]) , .ONENEG (INT_MULTIPLIER[11]) , .PPBIT (SUMMAND[17]) );
PP_MIDDLE PPM_66 (.INA (OPA[2]) , .INB (INV_MULTIPLICAND[2]) , .INC (OPA[3]) , .IND (INV_MULTIPLICAND[3]) , .TWOPOS (INT_MULTIPLIER[8]) , .TWONEG (INT_MULTIPLIER[9]) , .ONEPOS (INT_MULTIPLIER[10]) , .ONENEG (INT_MULTIPLIER[11]) , .PPBIT (SUMMAND[22]) );
PP_MIDDLE PPM_67 (.INA (OPA[3]) , .INB (INV_MULTIPLICAND[3]) , .INC (OPA[4]) , .IND (INV_MULTIPLICAND[4]) , .TWOPOS (INT_MULTIPLIER[8]) , .TWONEG (INT_MULTIPLIER[9]) , .ONEPOS (INT_MULTIPLIER[10]) , .ONENEG (INT_MULTIPLIER[11]) , .PPBIT (SUMMAND[26]) );
PP_MIDDLE PPM_68 (.INA (OPA[4]) , .INB (INV_MULTIPLICAND[4]) , .INC (OPA[5]) , .IND (INV_MULTIPLICAND[5]) , .TWOPOS (INT_MULTIPLIER[8]) , .TWONEG (INT_MULTIPLIER[9]) , .ONEPOS (INT_MULTIPLIER[10]) , .ONENEG (INT_MULTIPLIER[11]) , .PPBIT (SUMMAND[32]) );
PP_MIDDLE PPM_69 (.INA (OPA[5]) , .INB (INV_MULTIPLICAND[5]) , .INC (OPA[6]) , .IND (INV_MULTIPLICAND[6]) , .TWOPOS (INT_MULTIPLIER[8]) , .TWONEG (INT_MULTIPLIER[9]) , .ONEPOS (INT_MULTIPLIER[10]) , .ONENEG (INT_MULTIPLIER[11]) , .PPBIT (SUMMAND[37]) );
PP_MIDDLE PPM_70 (.INA (OPA[6]) , .INB (INV_MULTIPLICAND[6]) , .INC (OPA[7]) , .IND (INV_MULTIPLICAND[7]) , .TWOPOS (INT_MULTIPLIER[8]) , .TWONEG (INT_MULTIPLIER[9]) , .ONEPOS (INT_MULTIPLIER[10]) , .ONENEG (INT_MULTIPLIER[11]) , .PPBIT (SUMMAND[44]) );
PP_MIDDLE PPM_71 (.INA (OPA[7]) , .INB (INV_MULTIPLICAND[7]) , .INC (OPA[8]) , .IND (INV_MULTIPLICAND[8]) , .TWOPOS (INT_MULTIPLIER[8]) , .TWONEG (INT_MULTIPLIER[9]) , .ONEPOS (INT_MULTIPLIER[10]) , .ONENEG (INT_MULTIPLIER[11]) , .PPBIT (SUMMAND[50]) );
PP_MIDDLE PPM_72 (.INA (OPA[8]) , .INB (INV_MULTIPLICAND[8]) , .INC (OPA[9]) , .IND (INV_MULTIPLICAND[9]) , .TWOPOS (INT_MULTIPLIER[8]) , .TWONEG (INT_MULTIPLIER[9]) , .ONEPOS (INT_MULTIPLIER[10]) , .ONENEG (INT_MULTIPLIER[11]) , .PPBIT (SUMMAND[58]) );
PP_MIDDLE PPM_73 (.INA (OPA[9]) , .INB (INV_MULTIPLICAND[9]) , .INC (OPA[10]) , .IND (INV_MULTIPLICAND[10]) , .TWOPOS (INT_MULTIPLIER[8]) , .TWONEG (INT_MULTIPLIER[9]) , .ONEPOS (INT_MULTIPLIER[10]) , .ONENEG (INT_MULTIPLIER[11]) , .PPBIT (SUMMAND[65]) );
PP_MIDDLE PPM_74 (.INA (OPA[10]) , .INB (INV_MULTIPLICAND[10]) , .INC (OPA[11]) , .IND (INV_MULTIPLICAND[11]) , .TWOPOS (INT_MULTIPLIER[8]) , .TWONEG (INT_MULTIPLIER[9]) , .ONEPOS (INT_MULTIPLIER[10]) , .ONENEG (INT_MULTIPLIER[11]) , .PPBIT (SUMMAND[74]) );
PP_MIDDLE PPM_75 (.INA (OPA[11]) , .INB (INV_MULTIPLICAND[11]) , .INC (OPA[12]) , .IND (INV_MULTIPLICAND[12]) , .TWOPOS (INT_MULTIPLIER[8]) , .TWONEG (INT_MULTIPLIER[9]) , .ONEPOS (INT_MULTIPLIER[10]) , .ONENEG (INT_MULTIPLIER[11]) , .PPBIT (SUMMAND[82]) );
PP_MIDDLE PPM_76 (.INA (OPA[12]) , .INB (INV_MULTIPLICAND[12]) , .INC (OPA[13]) , .IND (INV_MULTIPLICAND[13]) , .TWOPOS (INT_MULTIPLIER[8]) , .TWONEG (INT_MULTIPLIER[9]) , .ONEPOS (INT_MULTIPLIER[10]) , .ONENEG (INT_MULTIPLIER[11]) , .PPBIT (SUMMAND[92]) );
PP_MIDDLE PPM_77 (.INA (OPA[13]) , .INB (INV_MULTIPLICAND[13]) , .INC (OPA[14]) , .IND (INV_MULTIPLICAND[14]) , .TWOPOS (INT_MULTIPLIER[8]) , .TWONEG (INT_MULTIPLIER[9]) , .ONEPOS (INT_MULTIPLIER[10]) , .ONENEG (INT_MULTIPLIER[11]) , .PPBIT (SUMMAND[101]) );
PP_MIDDLE PPM_78 (.INA (OPA[14]) , .INB (INV_MULTIPLICAND[14]) , .INC (OPA[15]) , .IND (INV_MULTIPLICAND[15]) , .TWOPOS (INT_MULTIPLIER[8]) , .TWONEG (INT_MULTIPLIER[9]) , .ONEPOS (INT_MULTIPLIER[10]) , .ONENEG (INT_MULTIPLIER[11]) , .PPBIT (SUMMAND[112]) );
PP_MIDDLE PPM_79 (.INA (OPA[15]) , .INB (INV_MULTIPLICAND[15]) , .INC (OPA[16]) , .IND (INV_MULTIPLICAND[16]) , .TWOPOS (INT_MULTIPLIER[8]) , .TWONEG (INT_MULTIPLIER[9]) , .ONEPOS (INT_MULTIPLIER[10]) , .ONENEG (INT_MULTIPLIER[11]) , .PPBIT (SUMMAND[122]) );
PP_MIDDLE PPM_80 (.INA (OPA[16]) , .INB (INV_MULTIPLICAND[16]) , .INC (OPA[17]) , .IND (INV_MULTIPLICAND[17]) , .TWOPOS (INT_MULTIPLIER[8]) , .TWONEG (INT_MULTIPLIER[9]) , .ONEPOS (INT_MULTIPLIER[10]) , .ONENEG (INT_MULTIPLIER[11]) , .PPBIT (SUMMAND[134]) );
PP_MIDDLE PPM_81 (.INA (OPA[17]) , .INB (INV_MULTIPLICAND[17]) , .INC (OPA[18]) , .IND (INV_MULTIPLICAND[18]) , .TWOPOS (INT_MULTIPLIER[8]) , .TWONEG (INT_MULTIPLIER[9]) , .ONEPOS (INT_MULTIPLIER[10]) , .ONENEG (INT_MULTIPLIER[11]) , .PPBIT (SUMMAND[145]) );
PP_MIDDLE PPM_82 (.INA (OPA[18]) , .INB (INV_MULTIPLICAND[18]) , .INC (OPA[19]) , .IND (INV_MULTIPLICAND[19]) , .TWOPOS (INT_MULTIPLIER[8]) , .TWONEG (INT_MULTIPLIER[9]) , .ONEPOS (INT_MULTIPLIER[10]) , .ONENEG (INT_MULTIPLIER[11]) , .PPBIT (SUMMAND[158]) );
PP_MIDDLE PPM_83 (.INA (OPA[19]) , .INB (INV_MULTIPLICAND[19]) , .INC (OPA[20]) , .IND (INV_MULTIPLICAND[20]) , .TWOPOS (INT_MULTIPLIER[8]) , .TWONEG (INT_MULTIPLIER[9]) , .ONEPOS (INT_MULTIPLIER[10]) , .ONENEG (INT_MULTIPLIER[11]) , .PPBIT (SUMMAND[170]) );
PP_MIDDLE PPM_84 (.INA (OPA[20]) , .INB (INV_MULTIPLICAND[20]) , .INC (OPA[21]) , .IND (INV_MULTIPLICAND[21]) , .TWOPOS (INT_MULTIPLIER[8]) , .TWONEG (INT_MULTIPLIER[9]) , .ONEPOS (INT_MULTIPLIER[10]) , .ONENEG (INT_MULTIPLIER[11]) , .PPBIT (SUMMAND[184]) );
PP_MIDDLE PPM_85 (.INA (OPA[21]) , .INB (INV_MULTIPLICAND[21]) , .INC (OPA[22]) , .IND (INV_MULTIPLICAND[22]) , .TWOPOS (INT_MULTIPLIER[8]) , .TWONEG (INT_MULTIPLIER[9]) , .ONEPOS (INT_MULTIPLIER[10]) , .ONENEG (INT_MULTIPLIER[11]) , .PPBIT (SUMMAND[197]) );
PP_MIDDLE PPM_86 (.INA (OPA[22]) , .INB (INV_MULTIPLICAND[22]) , .INC (OPA[23]) , .IND (INV_MULTIPLICAND[23]) , .TWOPOS (INT_MULTIPLIER[8]) , .TWONEG (INT_MULTIPLIER[9]) , .ONEPOS (INT_MULTIPLIER[10]) , .ONENEG (INT_MULTIPLIER[11]) , .PPBIT (SUMMAND[212]) );
PP_MIDDLE PPM_87 (.INA (OPA[23]) , .INB (INV_MULTIPLICAND[23]) , .INC (OPA[24]) , .IND (INV_MULTIPLICAND[24]) , .TWOPOS (INT_MULTIPLIER[8]) , .TWONEG (INT_MULTIPLIER[9]) , .ONEPOS (INT_MULTIPLIER[10]) , .ONENEG (INT_MULTIPLIER[11]) , .PPBIT (SUMMAND[226]) );
PP_MIDDLE PPM_88 (.INA (OPA[24]) , .INB (INV_MULTIPLICAND[24]) , .INC (OPA[25]) , .IND (INV_MULTIPLICAND[25]) , .TWOPOS (INT_MULTIPLIER[8]) , .TWONEG (INT_MULTIPLIER[9]) , .ONEPOS (INT_MULTIPLIER[10]) , .ONENEG (INT_MULTIPLIER[11]) , .PPBIT (SUMMAND[242]) );
PP_MIDDLE PPM_89 (.INA (OPA[25]) , .INB (INV_MULTIPLICAND[25]) , .INC (OPA[26]) , .IND (INV_MULTIPLICAND[26]) , .TWOPOS (INT_MULTIPLIER[8]) , .TWONEG (INT_MULTIPLIER[9]) , .ONEPOS (INT_MULTIPLIER[10]) , .ONENEG (INT_MULTIPLIER[11]) , .PPBIT (SUMMAND[257]) );
PP_MIDDLE PPM_90 (.INA (OPA[26]) , .INB (INV_MULTIPLICAND[26]) , .INC (OPA[27]) , .IND (INV_MULTIPLICAND[27]) , .TWOPOS (INT_MULTIPLIER[8]) , .TWONEG (INT_MULTIPLIER[9]) , .ONEPOS (INT_MULTIPLIER[10]) , .ONENEG (INT_MULTIPLIER[11]) , .PPBIT (SUMMAND[274]) );
PP_MIDDLE PPM_91 (.INA (OPA[27]) , .INB (INV_MULTIPLICAND[27]) , .INC (OPA[28]) , .IND (INV_MULTIPLICAND[28]) , .TWOPOS (INT_MULTIPLIER[8]) , .TWONEG (INT_MULTIPLIER[9]) , .ONEPOS (INT_MULTIPLIER[10]) , .ONENEG (INT_MULTIPLIER[11]) , .PPBIT (SUMMAND[290]) );
PP_MIDDLE PPM_92 (.INA (OPA[28]) , .INB (INV_MULTIPLICAND[28]) , .INC (OPA[29]) , .IND (INV_MULTIPLICAND[29]) , .TWOPOS (INT_MULTIPLIER[8]) , .TWONEG (INT_MULTIPLIER[9]) , .ONEPOS (INT_MULTIPLIER[10]) , .ONENEG (INT_MULTIPLIER[11]) , .PPBIT (SUMMAND[307]) );
PP_MIDDLE PPM_93 (.INA (OPA[29]) , .INB (INV_MULTIPLICAND[29]) , .INC (OPA[30]) , .IND (INV_MULTIPLICAND[30]) , .TWOPOS (INT_MULTIPLIER[8]) , .TWONEG (INT_MULTIPLIER[9]) , .ONEPOS (INT_MULTIPLIER[10]) , .ONENEG (INT_MULTIPLIER[11]) , .PPBIT (SUMMAND[323]) );
PP_MIDDLE PPM_94 (.INA (OPA[30]) , .INB (INV_MULTIPLICAND[30]) , .INC (OPA[31]) , .IND (INV_MULTIPLICAND[31]) , .TWOPOS (INT_MULTIPLIER[8]) , .TWONEG (INT_MULTIPLIER[9]) , .ONEPOS (INT_MULTIPLIER[10]) , .ONENEG (INT_MULTIPLIER[11]) , .PPBIT (SUMMAND[338]) );
PP_MIDDLE PPM_95 (.INA (OPA[31]) , .INB (INV_MULTIPLICAND[31]) , .INC (OPA[32]) , .IND (INV_MULTIPLICAND[32]) , .TWOPOS (INT_MULTIPLIER[8]) , .TWONEG (INT_MULTIPLIER[9]) , .ONEPOS (INT_MULTIPLIER[10]) , .ONENEG (INT_MULTIPLIER[11]) , .PPBIT (SUMMAND[352]) );
assign SUMMAND[353] = LOGIC_ONE;
PP_HIGH PPH_2 (.INA (OPA[32]) , .INB (INV_MULTIPLICAND[32]) , .TWOPOS (INT_MULTIPLIER[8]) , .TWONEG (INT_MULTIPLIER[9]) , .ONEPOS (INT_MULTIPLIER[10]) , .ONENEG (INT_MULTIPLIER[11]) , .PPBIT (SUMMAND[367]) );
DECODER DEC_3 (.INA (OPB[5]) , .INB (OPB[6]) , .INC (OPB[7]) , .TWOPOS (INT_MULTIPLIER[12]) , .TWONEG (INT_MULTIPLIER[13]) , .ONEPOS (INT_MULTIPLIER[14]) , .ONENEG (INT_MULTIPLIER[15]) );
PP_LOW PPL_3 (.INA (OPA[0]) , .INB (INV_MULTIPLICAND[0]) , .TWONEG (INT_MULTIPLIER[13]) , .ONEPOS (INT_MULTIPLIER[14]) , .ONENEG (INT_MULTIPLIER[15]) , .PPBIT (SUMMAND[18]) );
R_GATE RGATE_3 (.INA (OPB[5]) , .INB (OPB[6]) , .INC (OPB[7]) , .PPBIT (SUMMAND[19]) );
PP_MIDDLE PPM_96 (.INA (OPA[0]) , .INB (INV_MULTIPLICAND[0]) , .INC (OPA[1]) , .IND (INV_MULTIPLICAND[1]) , .TWOPOS (INT_MULTIPLIER[12]) , .TWONEG (INT_MULTIPLIER[13]) , .ONEPOS (INT_MULTIPLIER[14]) , .ONENEG (INT_MULTIPLIER[15]) , .PPBIT (SUMMAND[23]) );
PP_MIDDLE PPM_97 (.INA (OPA[1]) , .INB (INV_MULTIPLICAND[1]) , .INC (OPA[2]) , .IND (INV_MULTIPLICAND[2]) , .TWOPOS (INT_MULTIPLIER[12]) , .TWONEG (INT_MULTIPLIER[13]) , .ONEPOS (INT_MULTIPLIER[14]) , .ONENEG (INT_MULTIPLIER[15]) , .PPBIT (SUMMAND[27]) );
PP_MIDDLE PPM_98 (.INA (OPA[2]) , .INB (INV_MULTIPLICAND[2]) , .INC (OPA[3]) , .IND (INV_MULTIPLICAND[3]) , .TWOPOS (INT_MULTIPLIER[12]) , .TWONEG (INT_MULTIPLIER[13]) , .ONEPOS (INT_MULTIPLIER[14]) , .ONENEG (INT_MULTIPLIER[15]) , .PPBIT (SUMMAND[33]) );
PP_MIDDLE PPM_99 (.INA (OPA[3]) , .INB (INV_MULTIPLICAND[3]) , .INC (OPA[4]) , .IND (INV_MULTIPLICAND[4]) , .TWOPOS (INT_MULTIPLIER[12]) , .TWONEG (INT_MULTIPLIER[13]) , .ONEPOS (INT_MULTIPLIER[14]) , .ONENEG (INT_MULTIPLIER[15]) , .PPBIT (SUMMAND[38]) );
PP_MIDDLE PPM_100 (.INA (OPA[4]) , .INB (INV_MULTIPLICAND[4]) , .INC (OPA[5]) , .IND (INV_MULTIPLICAND[5]) , .TWOPOS (INT_MULTIPLIER[12]) , .TWONEG (INT_MULTIPLIER[13]) , .ONEPOS (INT_MULTIPLIER[14]) , .ONENEG (INT_MULTIPLIER[15]) , .PPBIT (SUMMAND[45]) );
PP_MIDDLE PPM_101 (.INA (OPA[5]) , .INB (INV_MULTIPLICAND[5]) , .INC (OPA[6]) , .IND (INV_MULTIPLICAND[6]) , .TWOPOS (INT_MULTIPLIER[12]) , .TWONEG (INT_MULTIPLIER[13]) , .ONEPOS (INT_MULTIPLIER[14]) , .ONENEG (INT_MULTIPLIER[15]) , .PPBIT (SUMMAND[51]) );
PP_MIDDLE PPM_102 (.INA (OPA[6]) , .INB (INV_MULTIPLICAND[6]) , .INC (OPA[7]) , .IND (INV_MULTIPLICAND[7]) , .TWOPOS (INT_MULTIPLIER[12]) , .TWONEG (INT_MULTIPLIER[13]) , .ONEPOS (INT_MULTIPLIER[14]) , .ONENEG (INT_MULTIPLIER[15]) , .PPBIT (SUMMAND[59]) );
PP_MIDDLE PPM_103 (.INA (OPA[7]) , .INB (INV_MULTIPLICAND[7]) , .INC (OPA[8]) , .IND (INV_MULTIPLICAND[8]) , .TWOPOS (INT_MULTIPLIER[12]) , .TWONEG (INT_MULTIPLIER[13]) , .ONEPOS (INT_MULTIPLIER[14]) , .ONENEG (INT_MULTIPLIER[15]) , .PPBIT (SUMMAND[66]) );
PP_MIDDLE PPM_104 (.INA (OPA[8]) , .INB (INV_MULTIPLICAND[8]) , .INC (OPA[9]) , .IND (INV_MULTIPLICAND[9]) , .TWOPOS (INT_MULTIPLIER[12]) , .TWONEG (INT_MULTIPLIER[13]) , .ONEPOS (INT_MULTIPLIER[14]) , .ONENEG (INT_MULTIPLIER[15]) , .PPBIT (SUMMAND[75]) );
PP_MIDDLE PPM_105 (.INA (OPA[9]) , .INB (INV_MULTIPLICAND[9]) , .INC (OPA[10]) , .IND (INV_MULTIPLICAND[10]) , .TWOPOS (INT_MULTIPLIER[12]) , .TWONEG (INT_MULTIPLIER[13]) , .ONEPOS (INT_MULTIPLIER[14]) , .ONENEG (INT_MULTIPLIER[15]) , .PPBIT (SUMMAND[83]) );
PP_MIDDLE PPM_106 (.INA (OPA[10]) , .INB (INV_MULTIPLICAND[10]) , .INC (OPA[11]) , .IND (INV_MULTIPLICAND[11]) , .TWOPOS (INT_MULTIPLIER[12]) , .TWONEG (INT_MULTIPLIER[13]) , .ONEPOS (INT_MULTIPLIER[14]) , .ONENEG (INT_MULTIPLIER[15]) , .PPBIT (SUMMAND[93]) );
PP_MIDDLE PPM_107 (.INA (OPA[11]) , .INB (INV_MULTIPLICAND[11]) , .INC (OPA[12]) , .IND (INV_MULTIPLICAND[12]) , .TWOPOS (INT_MULTIPLIER[12]) , .TWONEG (INT_MULTIPLIER[13]) , .ONEPOS (INT_MULTIPLIER[14]) , .ONENEG (INT_MULTIPLIER[15]) , .PPBIT (SUMMAND[102]) );
PP_MIDDLE PPM_108 (.INA (OPA[12]) , .INB (INV_MULTIPLICAND[12]) , .INC (OPA[13]) , .IND (INV_MULTIPLICAND[13]) , .TWOPOS (INT_MULTIPLIER[12]) , .TWONEG (INT_MULTIPLIER[13]) , .ONEPOS (INT_MULTIPLIER[14]) , .ONENEG (INT_MULTIPLIER[15]) , .PPBIT (SUMMAND[113]) );
PP_MIDDLE PPM_109 (.INA (OPA[13]) , .INB (INV_MULTIPLICAND[13]) , .INC (OPA[14]) , .IND (INV_MULTIPLICAND[14]) , .TWOPOS (INT_MULTIPLIER[12]) , .TWONEG (INT_MULTIPLIER[13]) , .ONEPOS (INT_MULTIPLIER[14]) , .ONENEG (INT_MULTIPLIER[15]) , .PPBIT (SUMMAND[123]) );
PP_MIDDLE PPM_110 (.INA (OPA[14]) , .INB (INV_MULTIPLICAND[14]) , .INC (OPA[15]) , .IND (INV_MULTIPLICAND[15]) , .TWOPOS (INT_MULTIPLIER[12]) , .TWONEG (INT_MULTIPLIER[13]) , .ONEPOS (INT_MULTIPLIER[14]) , .ONENEG (INT_MULTIPLIER[15]) , .PPBIT (SUMMAND[135]) );
PP_MIDDLE PPM_111 (.INA (OPA[15]) , .INB (INV_MULTIPLICAND[15]) , .INC (OPA[16]) , .IND (INV_MULTIPLICAND[16]) , .TWOPOS (INT_MULTIPLIER[12]) , .TWONEG (INT_MULTIPLIER[13]) , .ONEPOS (INT_MULTIPLIER[14]) , .ONENEG (INT_MULTIPLIER[15]) , .PPBIT (SUMMAND[146]) );
PP_MIDDLE PPM_112 (.INA (OPA[16]) , .INB (INV_MULTIPLICAND[16]) , .INC (OPA[17]) , .IND (INV_MULTIPLICAND[17]) , .TWOPOS (INT_MULTIPLIER[12]) , .TWONEG (INT_MULTIPLIER[13]) , .ONEPOS (INT_MULTIPLIER[14]) , .ONENEG (INT_MULTIPLIER[15]) , .PPBIT (SUMMAND[159]) );
PP_MIDDLE PPM_113 (.INA (OPA[17]) , .INB (INV_MULTIPLICAND[17]) , .INC (OPA[18]) , .IND (INV_MULTIPLICAND[18]) , .TWOPOS (INT_MULTIPLIER[12]) , .TWONEG (INT_MULTIPLIER[13]) , .ONEPOS (INT_MULTIPLIER[14]) , .ONENEG (INT_MULTIPLIER[15]) , .PPBIT (SUMMAND[171]) );
PP_MIDDLE PPM_114 (.INA (OPA[18]) , .INB (INV_MULTIPLICAND[18]) , .INC (OPA[19]) , .IND (INV_MULTIPLICAND[19]) , .TWOPOS (INT_MULTIPLIER[12]) , .TWONEG (INT_MULTIPLIER[13]) , .ONEPOS (INT_MULTIPLIER[14]) , .ONENEG (INT_MULTIPLIER[15]) , .PPBIT (SUMMAND[185]) );
PP_MIDDLE PPM_115 (.INA (OPA[19]) , .INB (INV_MULTIPLICAND[19]) , .INC (OPA[20]) , .IND (INV_MULTIPLICAND[20]) , .TWOPOS (INT_MULTIPLIER[12]) , .TWONEG (INT_MULTIPLIER[13]) , .ONEPOS (INT_MULTIPLIER[14]) , .ONENEG (INT_MULTIPLIER[15]) , .PPBIT (SUMMAND[198]) );
PP_MIDDLE PPM_116 (.INA (OPA[20]) , .INB (INV_MULTIPLICAND[20]) , .INC (OPA[21]) , .IND (INV_MULTIPLICAND[21]) , .TWOPOS (INT_MULTIPLIER[12]) , .TWONEG (INT_MULTIPLIER[13]) , .ONEPOS (INT_MULTIPLIER[14]) , .ONENEG (INT_MULTIPLIER[15]) , .PPBIT (SUMMAND[213]) );
PP_MIDDLE PPM_117 (.INA (OPA[21]) , .INB (INV_MULTIPLICAND[21]) , .INC (OPA[22]) , .IND (INV_MULTIPLICAND[22]) , .TWOPOS (INT_MULTIPLIER[12]) , .TWONEG (INT_MULTIPLIER[13]) , .ONEPOS (INT_MULTIPLIER[14]) , .ONENEG (INT_MULTIPLIER[15]) , .PPBIT (SUMMAND[227]) );
PP_MIDDLE PPM_118 (.INA (OPA[22]) , .INB (INV_MULTIPLICAND[22]) , .INC (OPA[23]) , .IND (INV_MULTIPLICAND[23]) , .TWOPOS (INT_MULTIPLIER[12]) , .TWONEG (INT_MULTIPLIER[13]) , .ONEPOS (INT_MULTIPLIER[14]) , .ONENEG (INT_MULTIPLIER[15]) , .PPBIT (SUMMAND[243]) );
PP_MIDDLE PPM_119 (.INA (OPA[23]) , .INB (INV_MULTIPLICAND[23]) , .INC (OPA[24]) , .IND (INV_MULTIPLICAND[24]) , .TWOPOS (INT_MULTIPLIER[12]) , .TWONEG (INT_MULTIPLIER[13]) , .ONEPOS (INT_MULTIPLIER[14]) , .ONENEG (INT_MULTIPLIER[15]) , .PPBIT (SUMMAND[258]) );
PP_MIDDLE PPM_120 (.INA (OPA[24]) , .INB (INV_MULTIPLICAND[24]) , .INC (OPA[25]) , .IND (INV_MULTIPLICAND[25]) , .TWOPOS (INT_MULTIPLIER[12]) , .TWONEG (INT_MULTIPLIER[13]) , .ONEPOS (INT_MULTIPLIER[14]) , .ONENEG (INT_MULTIPLIER[15]) , .PPBIT (SUMMAND[275]) );
PP_MIDDLE PPM_121 (.INA (OPA[25]) , .INB (INV_MULTIPLICAND[25]) , .INC (OPA[26]) , .IND (INV_MULTIPLICAND[26]) , .TWOPOS (INT_MULTIPLIER[12]) , .TWONEG (INT_MULTIPLIER[13]) , .ONEPOS (INT_MULTIPLIER[14]) , .ONENEG (INT_MULTIPLIER[15]) , .PPBIT (SUMMAND[291]) );
PP_MIDDLE PPM_122 (.INA (OPA[26]) , .INB (INV_MULTIPLICAND[26]) , .INC (OPA[27]) , .IND (INV_MULTIPLICAND[27]) , .TWOPOS (INT_MULTIPLIER[12]) , .TWONEG (INT_MULTIPLIER[13]) , .ONEPOS (INT_MULTIPLIER[14]) , .ONENEG (INT_MULTIPLIER[15]) , .PPBIT (SUMMAND[308]) );
PP_MIDDLE PPM_123 (.INA (OPA[27]) , .INB (INV_MULTIPLICAND[27]) , .INC (OPA[28]) , .IND (INV_MULTIPLICAND[28]) , .TWOPOS (INT_MULTIPLIER[12]) , .TWONEG (INT_MULTIPLIER[13]) , .ONEPOS (INT_MULTIPLIER[14]) , .ONENEG (INT_MULTIPLIER[15]) , .PPBIT (SUMMAND[324]) );
PP_MIDDLE PPM_124 (.INA (OPA[28]) , .INB (INV_MULTIPLICAND[28]) , .INC (OPA[29]) , .IND (INV_MULTIPLICAND[29]) , .TWOPOS (INT_MULTIPLIER[12]) , .TWONEG (INT_MULTIPLIER[13]) , .ONEPOS (INT_MULTIPLIER[14]) , .ONENEG (INT_MULTIPLIER[15]) , .PPBIT (SUMMAND[339]) );
PP_MIDDLE PPM_125 (.INA (OPA[29]) , .INB (INV_MULTIPLICAND[29]) , .INC (OPA[30]) , .IND (INV_MULTIPLICAND[30]) , .TWOPOS (INT_MULTIPLIER[12]) , .TWONEG (INT_MULTIPLIER[13]) , .ONEPOS (INT_MULTIPLIER[14]) , .ONENEG (INT_MULTIPLIER[15]) , .PPBIT (SUMMAND[354]) );
PP_MIDDLE PPM_126 (.INA (OPA[30]) , .INB (INV_MULTIPLICAND[30]) , .INC (OPA[31]) , .IND (INV_MULTIPLICAND[31]) , .TWOPOS (INT_MULTIPLIER[12]) , .TWONEG (INT_MULTIPLIER[13]) , .ONEPOS (INT_MULTIPLIER[14]) , .ONENEG (INT_MULTIPLIER[15]) , .PPBIT (SUMMAND[368]) );
PP_MIDDLE PPM_127 (.INA (OPA[31]) , .INB (INV_MULTIPLICAND[31]) , .INC (OPA[32]) , .IND (INV_MULTIPLICAND[32]) , .TWOPOS (INT_MULTIPLIER[12]) , .TWONEG (INT_MULTIPLIER[13]) , .ONEPOS (INT_MULTIPLIER[14]) , .ONENEG (INT_MULTIPLIER[15]) , .PPBIT (SUMMAND[381]) );
assign SUMMAND[382] = LOGIC_ONE;
PP_HIGH PPH_3 (.INA (OPA[32]) , .INB (INV_MULTIPLICAND[32]) , .TWOPOS (INT_MULTIPLIER[12]) , .TWONEG (INT_MULTIPLIER[13]) , .ONEPOS (INT_MULTIPLIER[14]) , .ONENEG (INT_MULTIPLIER[15]) , .PPBIT (SUMMAND[395]) );
DECODER DEC_4 (.INA (OPB[7]) , .INB (OPB[8]) , .INC (OPB[9]) , .TWOPOS (INT_MULTIPLIER[16]) , .TWONEG (INT_MULTIPLIER[17]) , .ONEPOS (INT_MULTIPLIER[18]) , .ONENEG (INT_MULTIPLIER[19]) );
PP_LOW PPL_4 (.INA (OPA[0]) , .INB (INV_MULTIPLICAND[0]) , .TWONEG (INT_MULTIPLIER[17]) , .ONEPOS (INT_MULTIPLIER[18]) , .ONENEG (INT_MULTIPLIER[19]) , .PPBIT (SUMMAND[28]) );
R_GATE RGATE_4 (.INA (OPB[7]) , .INB (OPB[8]) , .INC (OPB[9]) , .PPBIT (SUMMAND[29]) );
PP_MIDDLE PPM_128 (.INA (OPA[0]) , .INB (INV_MULTIPLICAND[0]) , .INC (OPA[1]) , .IND (INV_MULTIPLICAND[1]) , .TWOPOS (INT_MULTIPLIER[16]) , .TWONEG (INT_MULTIPLIER[17]) , .ONEPOS (INT_MULTIPLIER[18]) , .ONENEG (INT_MULTIPLIER[19]) , .PPBIT (SUMMAND[34]) );
PP_MIDDLE PPM_129 (.INA (OPA[1]) , .INB (INV_MULTIPLICAND[1]) , .INC (OPA[2]) , .IND (INV_MULTIPLICAND[2]) , .TWOPOS (INT_MULTIPLIER[16]) , .TWONEG (INT_MULTIPLIER[17]) , .ONEPOS (INT_MULTIPLIER[18]) , .ONENEG (INT_MULTIPLIER[19]) , .PPBIT (SUMMAND[39]) );
PP_MIDDLE PPM_130 (.INA (OPA[2]) , .INB (INV_MULTIPLICAND[2]) , .INC (OPA[3]) , .IND (INV_MULTIPLICAND[3]) , .TWOPOS (INT_MULTIPLIER[16]) , .TWONEG (INT_MULTIPLIER[17]) , .ONEPOS (INT_MULTIPLIER[18]) , .ONENEG (INT_MULTIPLIER[19]) , .PPBIT (SUMMAND[46]) );
PP_MIDDLE PPM_131 (.INA (OPA[3]) , .INB (INV_MULTIPLICAND[3]) , .INC (OPA[4]) , .IND (INV_MULTIPLICAND[4]) , .TWOPOS (INT_MULTIPLIER[16]) , .TWONEG (INT_MULTIPLIER[17]) , .ONEPOS (INT_MULTIPLIER[18]) , .ONENEG (INT_MULTIPLIER[19]) , .PPBIT (SUMMAND[52]) );
PP_MIDDLE PPM_132 (.INA (OPA[4]) , .INB (INV_MULTIPLICAND[4]) , .INC (OPA[5]) , .IND (INV_MULTIPLICAND[5]) , .TWOPOS (INT_MULTIPLIER[16]) , .TWONEG (INT_MULTIPLIER[17]) , .ONEPOS (INT_MULTIPLIER[18]) , .ONENEG (INT_MULTIPLIER[19]) , .PPBIT (SUMMAND[60]) );
PP_MIDDLE PPM_133 (.INA (OPA[5]) , .INB (INV_MULTIPLICAND[5]) , .INC (OPA[6]) , .IND (INV_MULTIPLICAND[6]) , .TWOPOS (INT_MULTIPLIER[16]) , .TWONEG (INT_MULTIPLIER[17]) , .ONEPOS (INT_MULTIPLIER[18]) , .ONENEG (INT_MULTIPLIER[19]) , .PPBIT (SUMMAND[67]) );
PP_MIDDLE PPM_134 (.INA (OPA[6]) , .INB (INV_MULTIPLICAND[6]) , .INC (OPA[7]) , .IND (INV_MULTIPLICAND[7]) , .TWOPOS (INT_MULTIPLIER[16]) , .TWONEG (INT_MULTIPLIER[17]) , .ONEPOS (INT_MULTIPLIER[18]) , .ONENEG (INT_MULTIPLIER[19]) , .PPBIT (SUMMAND[76]) );
PP_MIDDLE PPM_135 (.INA (OPA[7]) , .INB (INV_MULTIPLICAND[7]) , .INC (OPA[8]) , .IND (INV_MULTIPLICAND[8]) , .TWOPOS (INT_MULTIPLIER[16]) , .TWONEG (INT_MULTIPLIER[17]) , .ONEPOS (INT_MULTIPLIER[18]) , .ONENEG (INT_MULTIPLIER[19]) , .PPBIT (SUMMAND[84]) );
PP_MIDDLE PPM_136 (.INA (OPA[8]) , .INB (INV_MULTIPLICAND[8]) , .INC (OPA[9]) , .IND (INV_MULTIPLICAND[9]) , .TWOPOS (INT_MULTIPLIER[16]) , .TWONEG (INT_MULTIPLIER[17]) , .ONEPOS (INT_MULTIPLIER[18]) , .ONENEG (INT_MULTIPLIER[19]) , .PPBIT (SUMMAND[94]) );
PP_MIDDLE PPM_137 (.INA (OPA[9]) , .INB (INV_MULTIPLICAND[9]) , .INC (OPA[10]) , .IND (INV_MULTIPLICAND[10]) , .TWOPOS (INT_MULTIPLIER[16]) , .TWONEG (INT_MULTIPLIER[17]) , .ONEPOS (INT_MULTIPLIER[18]) , .ONENEG (INT_MULTIPLIER[19]) , .PPBIT (SUMMAND[103]) );
PP_MIDDLE PPM_138 (.INA (OPA[10]) , .INB (INV_MULTIPLICAND[10]) , .INC (OPA[11]) , .IND (INV_MULTIPLICAND[11]) , .TWOPOS (INT_MULTIPLIER[16]) , .TWONEG (INT_MULTIPLIER[17]) , .ONEPOS (INT_MULTIPLIER[18]) , .ONENEG (INT_MULTIPLIER[19]) , .PPBIT (SUMMAND[114]) );
PP_MIDDLE PPM_139 (.INA (OPA[11]) , .INB (INV_MULTIPLICAND[11]) , .INC (OPA[12]) , .IND (INV_MULTIPLICAND[12]) , .TWOPOS (INT_MULTIPLIER[16]) , .TWONEG (INT_MULTIPLIER[17]) , .ONEPOS (INT_MULTIPLIER[18]) , .ONENEG (INT_MULTIPLIER[19]) , .PPBIT (SUMMAND[124]) );
PP_MIDDLE PPM_140 (.INA (OPA[12]) , .INB (INV_MULTIPLICAND[12]) , .INC (OPA[13]) , .IND (INV_MULTIPLICAND[13]) , .TWOPOS (INT_MULTIPLIER[16]) , .TWONEG (INT_MULTIPLIER[17]) , .ONEPOS (INT_MULTIPLIER[18]) , .ONENEG (INT_MULTIPLIER[19]) , .PPBIT (SUMMAND[136]) );
PP_MIDDLE PPM_141 (.INA (OPA[13]) , .INB (INV_MULTIPLICAND[13]) , .INC (OPA[14]) , .IND (INV_MULTIPLICAND[14]) , .TWOPOS (INT_MULTIPLIER[16]) , .TWONEG (INT_MULTIPLIER[17]) , .ONEPOS (INT_MULTIPLIER[18]) , .ONENEG (INT_MULTIPLIER[19]) , .PPBIT (SUMMAND[147]) );
PP_MIDDLE PPM_142 (.INA (OPA[14]) , .INB (INV_MULTIPLICAND[14]) , .INC (OPA[15]) , .IND (INV_MULTIPLICAND[15]) , .TWOPOS (INT_MULTIPLIER[16]) , .TWONEG (INT_MULTIPLIER[17]) , .ONEPOS (INT_MULTIPLIER[18]) , .ONENEG (INT_MULTIPLIER[19]) , .PPBIT (SUMMAND[160]) );
PP_MIDDLE PPM_143 (.INA (OPA[15]) , .INB (INV_MULTIPLICAND[15]) , .INC (OPA[16]) , .IND (INV_MULTIPLICAND[16]) , .TWOPOS (INT_MULTIPLIER[16]) , .TWONEG (INT_MULTIPLIER[17]) , .ONEPOS (INT_MULTIPLIER[18]) , .ONENEG (INT_MULTIPLIER[19]) , .PPBIT (SUMMAND[172]) );
PP_MIDDLE PPM_144 (.INA (OPA[16]) , .INB (INV_MULTIPLICAND[16]) , .INC (OPA[17]) , .IND (INV_MULTIPLICAND[17]) , .TWOPOS (INT_MULTIPLIER[16]) , .TWONEG (INT_MULTIPLIER[17]) , .ONEPOS (INT_MULTIPLIER[18]) , .ONENEG (INT_MULTIPLIER[19]) , .PPBIT (SUMMAND[186]) );
PP_MIDDLE PPM_145 (.INA (OPA[17]) , .INB (INV_MULTIPLICAND[17]) , .INC (OPA[18]) , .IND (INV_MULTIPLICAND[18]) , .TWOPOS (INT_MULTIPLIER[16]) , .TWONEG (INT_MULTIPLIER[17]) , .ONEPOS (INT_MULTIPLIER[18]) , .ONENEG (INT_MULTIPLIER[19]) , .PPBIT (SUMMAND[199]) );
PP_MIDDLE PPM_146 (.INA (OPA[18]) , .INB (INV_MULTIPLICAND[18]) , .INC (OPA[19]) , .IND (INV_MULTIPLICAND[19]) , .TWOPOS (INT_MULTIPLIER[16]) , .TWONEG (INT_MULTIPLIER[17]) , .ONEPOS (INT_MULTIPLIER[18]) , .ONENEG (INT_MULTIPLIER[19]) , .PPBIT (SUMMAND[214]) );
PP_MIDDLE PPM_147 (.INA (OPA[19]) , .INB (INV_MULTIPLICAND[19]) , .INC (OPA[20]) , .IND (INV_MULTIPLICAND[20]) , .TWOPOS (INT_MULTIPLIER[16]) , .TWONEG (INT_MULTIPLIER[17]) , .ONEPOS (INT_MULTIPLIER[18]) , .ONENEG (INT_MULTIPLIER[19]) , .PPBIT (SUMMAND[228]) );
PP_MIDDLE PPM_148 (.INA (OPA[20]) , .INB (INV_MULTIPLICAND[20]) , .INC (OPA[21]) , .IND (INV_MULTIPLICAND[21]) , .TWOPOS (INT_MULTIPLIER[16]) , .TWONEG (INT_MULTIPLIER[17]) , .ONEPOS (INT_MULTIPLIER[18]) , .ONENEG (INT_MULTIPLIER[19]) , .PPBIT (SUMMAND[244]) );
PP_MIDDLE PPM_149 (.INA (OPA[21]) , .INB (INV_MULTIPLICAND[21]) , .INC (OPA[22]) , .IND (INV_MULTIPLICAND[22]) , .TWOPOS (INT_MULTIPLIER[16]) , .TWONEG (INT_MULTIPLIER[17]) , .ONEPOS (INT_MULTIPLIER[18]) , .ONENEG (INT_MULTIPLIER[19]) , .PPBIT (SUMMAND[259]) );
PP_MIDDLE PPM_150 (.INA (OPA[22]) , .INB (INV_MULTIPLICAND[22]) , .INC (OPA[23]) , .IND (INV_MULTIPLICAND[23]) , .TWOPOS (INT_MULTIPLIER[16]) , .TWONEG (INT_MULTIPLIER[17]) , .ONEPOS (INT_MULTIPLIER[18]) , .ONENEG (INT_MULTIPLIER[19]) , .PPBIT (SUMMAND[276]) );
PP_MIDDLE PPM_151 (.INA (OPA[23]) , .INB (INV_MULTIPLICAND[23]) , .INC (OPA[24]) , .IND (INV_MULTIPLICAND[24]) , .TWOPOS (INT_MULTIPLIER[16]) , .TWONEG (INT_MULTIPLIER[17]) , .ONEPOS (INT_MULTIPLIER[18]) , .ONENEG (INT_MULTIPLIER[19]) , .PPBIT (SUMMAND[292]) );
PP_MIDDLE PPM_152 (.INA (OPA[24]) , .INB (INV_MULTIPLICAND[24]) , .INC (OPA[25]) , .IND (INV_MULTIPLICAND[25]) , .TWOPOS (INT_MULTIPLIER[16]) , .TWONEG (INT_MULTIPLIER[17]) , .ONEPOS (INT_MULTIPLIER[18]) , .ONENEG (INT_MULTIPLIER[19]) , .PPBIT (SUMMAND[309]) );
PP_MIDDLE PPM_153 (.INA (OPA[25]) , .INB (INV_MULTIPLICAND[25]) , .INC (OPA[26]) , .IND (INV_MULTIPLICAND[26]) , .TWOPOS (INT_MULTIPLIER[16]) , .TWONEG (INT_MULTIPLIER[17]) , .ONEPOS (INT_MULTIPLIER[18]) , .ONENEG (INT_MULTIPLIER[19]) , .PPBIT (SUMMAND[325]) );
PP_MIDDLE PPM_154 (.INA (OPA[26]) , .INB (INV_MULTIPLICAND[26]) , .INC (OPA[27]) , .IND (INV_MULTIPLICAND[27]) , .TWOPOS (INT_MULTIPLIER[16]) , .TWONEG (INT_MULTIPLIER[17]) , .ONEPOS (INT_MULTIPLIER[18]) , .ONENEG (INT_MULTIPLIER[19]) , .PPBIT (SUMMAND[340]) );
PP_MIDDLE PPM_155 (.INA (OPA[27]) , .INB (INV_MULTIPLICAND[27]) , .INC (OPA[28]) , .IND (INV_MULTIPLICAND[28]) , .TWOPOS (INT_MULTIPLIER[16]) , .TWONEG (INT_MULTIPLIER[17]) , .ONEPOS (INT_MULTIPLIER[18]) , .ONENEG (INT_MULTIPLIER[19]) , .PPBIT (SUMMAND[355]) );
PP_MIDDLE PPM_156 (.INA (OPA[28]) , .INB (INV_MULTIPLICAND[28]) , .INC (OPA[29]) , .IND (INV_MULTIPLICAND[29]) , .TWOPOS (INT_MULTIPLIER[16]) , .TWONEG (INT_MULTIPLIER[17]) , .ONEPOS (INT_MULTIPLIER[18]) , .ONENEG (INT_MULTIPLIER[19]) , .PPBIT (SUMMAND[369]) );
PP_MIDDLE PPM_157 (.INA (OPA[29]) , .INB (INV_MULTIPLICAND[29]) , .INC (OPA[30]) , .IND (INV_MULTIPLICAND[30]) , .TWOPOS (INT_MULTIPLIER[16]) , .TWONEG (INT_MULTIPLIER[17]) , .ONEPOS (INT_MULTIPLIER[18]) , .ONENEG (INT_MULTIPLIER[19]) , .PPBIT (SUMMAND[383]) );
PP_MIDDLE PPM_158 (.INA (OPA[30]) , .INB (INV_MULTIPLICAND[30]) , .INC (OPA[31]) , .IND (INV_MULTIPLICAND[31]) , .TWOPOS (INT_MULTIPLIER[16]) , .TWONEG (INT_MULTIPLIER[17]) , .ONEPOS (INT_MULTIPLIER[18]) , .ONENEG (INT_MULTIPLIER[19]) , .PPBIT (SUMMAND[396]) );
PP_MIDDLE PPM_159 (.INA (OPA[31]) , .INB (INV_MULTIPLICAND[31]) , .INC (OPA[32]) , .IND (INV_MULTIPLICAND[32]) , .TWOPOS (INT_MULTIPLIER[16]) , .TWONEG (INT_MULTIPLIER[17]) , .ONEPOS (INT_MULTIPLIER[18]) , .ONENEG (INT_MULTIPLIER[19]) , .PPBIT (SUMMAND[408]) );
assign SUMMAND[409] = LOGIC_ONE;
PP_HIGH PPH_4 (.INA (OPA[32]) , .INB (INV_MULTIPLICAND[32]) , .TWOPOS (INT_MULTIPLIER[16]) , .TWONEG (INT_MULTIPLIER[17]) , .ONEPOS (INT_MULTIPLIER[18]) , .ONENEG (INT_MULTIPLIER[19]) , .PPBIT (SUMMAND[421]) );
DECODER DEC_5 (.INA (OPB[9]) , .INB (OPB[10]) , .INC (OPB[11]) , .TWOPOS (INT_MULTIPLIER[20]) , .TWONEG (INT_MULTIPLIER[21]) , .ONEPOS (INT_MULTIPLIER[22]) , .ONENEG (INT_MULTIPLIER[23]) );
PP_LOW PPL_5 (.INA (OPA[0]) , .INB (INV_MULTIPLICAND[0]) , .TWONEG (INT_MULTIPLIER[21]) , .ONEPOS (INT_MULTIPLIER[22]) , .ONENEG (INT_MULTIPLIER[23]) , .PPBIT (SUMMAND[40]) );
R_GATE RGATE_5 (.INA (OPB[9]) , .INB (OPB[10]) , .INC (OPB[11]) , .PPBIT (SUMMAND[41]) );
PP_MIDDLE PPM_160 (.INA (OPA[0]) , .INB (INV_MULTIPLICAND[0]) , .INC (OPA[1]) , .IND (INV_MULTIPLICAND[1]) , .TWOPOS (INT_MULTIPLIER[20]) , .TWONEG (INT_MULTIPLIER[21]) , .ONEPOS (INT_MULTIPLIER[22]) , .ONENEG (INT_MULTIPLIER[23]) , .PPBIT (SUMMAND[47]) );
PP_MIDDLE PPM_161 (.INA (OPA[1]) , .INB (INV_MULTIPLICAND[1]) , .INC (OPA[2]) , .IND (INV_MULTIPLICAND[2]) , .TWOPOS (INT_MULTIPLIER[20]) , .TWONEG (INT_MULTIPLIER[21]) , .ONEPOS (INT_MULTIPLIER[22]) , .ONENEG (INT_MULTIPLIER[23]) , .PPBIT (SUMMAND[53]) );
PP_MIDDLE PPM_162 (.INA (OPA[2]) , .INB (INV_MULTIPLICAND[2]) , .INC (OPA[3]) , .IND (INV_MULTIPLICAND[3]) , .TWOPOS (INT_MULTIPLIER[20]) , .TWONEG (INT_MULTIPLIER[21]) , .ONEPOS (INT_MULTIPLIER[22]) , .ONENEG (INT_MULTIPLIER[23]) , .PPBIT (SUMMAND[61]) );
PP_MIDDLE PPM_163 (.INA (OPA[3]) , .INB (INV_MULTIPLICAND[3]) , .INC (OPA[4]) , .IND (INV_MULTIPLICAND[4]) , .TWOPOS (INT_MULTIPLIER[20]) , .TWONEG (INT_MULTIPLIER[21]) , .ONEPOS (INT_MULTIPLIER[22]) , .ONENEG (INT_MULTIPLIER[23]) , .PPBIT (SUMMAND[68]) );
PP_MIDDLE PPM_164 (.INA (OPA[4]) , .INB (INV_MULTIPLICAND[4]) , .INC (OPA[5]) , .IND (INV_MULTIPLICAND[5]) , .TWOPOS (INT_MULTIPLIER[20]) , .TWONEG (INT_MULTIPLIER[21]) , .ONEPOS (INT_MULTIPLIER[22]) , .ONENEG (INT_MULTIPLIER[23]) , .PPBIT (SUMMAND[77]) );
PP_MIDDLE PPM_165 (.INA (OPA[5]) , .INB (INV_MULTIPLICAND[5]) , .INC (OPA[6]) , .IND (INV_MULTIPLICAND[6]) , .TWOPOS (INT_MULTIPLIER[20]) , .TWONEG (INT_MULTIPLIER[21]) , .ONEPOS (INT_MULTIPLIER[22]) , .ONENEG (INT_MULTIPLIER[23]) , .PPBIT (SUMMAND[85]) );
PP_MIDDLE PPM_166 (.INA (OPA[6]) , .INB (INV_MULTIPLICAND[6]) , .INC (OPA[7]) , .IND (INV_MULTIPLICAND[7]) , .TWOPOS (INT_MULTIPLIER[20]) , .TWONEG (INT_MULTIPLIER[21]) , .ONEPOS (INT_MULTIPLIER[22]) , .ONENEG (INT_MULTIPLIER[23]) , .PPBIT (SUMMAND[95]) );
PP_MIDDLE PPM_167 (.INA (OPA[7]) , .INB (INV_MULTIPLICAND[7]) , .INC (OPA[8]) , .IND (INV_MULTIPLICAND[8]) , .TWOPOS (INT_MULTIPLIER[20]) , .TWONEG (INT_MULTIPLIER[21]) , .ONEPOS (INT_MULTIPLIER[22]) , .ONENEG (INT_MULTIPLIER[23]) , .PPBIT (SUMMAND[104]) );
PP_MIDDLE PPM_168 (.INA (OPA[8]) , .INB (INV_MULTIPLICAND[8]) , .INC (OPA[9]) , .IND (INV_MULTIPLICAND[9]) , .TWOPOS (INT_MULTIPLIER[20]) , .TWONEG (INT_MULTIPLIER[21]) , .ONEPOS (INT_MULTIPLIER[22]) , .ONENEG (INT_MULTIPLIER[23]) , .PPBIT (SUMMAND[115]) );
PP_MIDDLE PPM_169 (.INA (OPA[9]) , .INB (INV_MULTIPLICAND[9]) , .INC (OPA[10]) , .IND (INV_MULTIPLICAND[10]) , .TWOPOS (INT_MULTIPLIER[20]) , .TWONEG (INT_MULTIPLIER[21]) , .ONEPOS (INT_MULTIPLIER[22]) , .ONENEG (INT_MULTIPLIER[23]) , .PPBIT (SUMMAND[125]) );
PP_MIDDLE PPM_170 (.INA (OPA[10]) , .INB (INV_MULTIPLICAND[10]) , .INC (OPA[11]) , .IND (INV_MULTIPLICAND[11]) , .TWOPOS (INT_MULTIPLIER[20]) , .TWONEG (INT_MULTIPLIER[21]) , .ONEPOS (INT_MULTIPLIER[22]) , .ONENEG (INT_MULTIPLIER[23]) , .PPBIT (SUMMAND[137]) );
PP_MIDDLE PPM_171 (.INA (OPA[11]) , .INB (INV_MULTIPLICAND[11]) , .INC (OPA[12]) , .IND (INV_MULTIPLICAND[12]) , .TWOPOS (INT_MULTIPLIER[20]) , .TWONEG (INT_MULTIPLIER[21]) , .ONEPOS (INT_MULTIPLIER[22]) , .ONENEG (INT_MULTIPLIER[23]) , .PPBIT (SUMMAND[148]) );
PP_MIDDLE PPM_172 (.INA (OPA[12]) , .INB (INV_MULTIPLICAND[12]) , .INC (OPA[13]) , .IND (INV_MULTIPLICAND[13]) , .TWOPOS (INT_MULTIPLIER[20]) , .TWONEG (INT_MULTIPLIER[21]) , .ONEPOS (INT_MULTIPLIER[22]) , .ONENEG (INT_MULTIPLIER[23]) , .PPBIT (SUMMAND[161]) );
PP_MIDDLE PPM_173 (.INA (OPA[13]) , .INB (INV_MULTIPLICAND[13]) , .INC (OPA[14]) , .IND (INV_MULTIPLICAND[14]) , .TWOPOS (INT_MULTIPLIER[20]) , .TWONEG (INT_MULTIPLIER[21]) , .ONEPOS (INT_MULTIPLIER[22]) , .ONENEG (INT_MULTIPLIER[23]) , .PPBIT (SUMMAND[173]) );
PP_MIDDLE PPM_174 (.INA (OPA[14]) , .INB (INV_MULTIPLICAND[14]) , .INC (OPA[15]) , .IND (INV_MULTIPLICAND[15]) , .TWOPOS (INT_MULTIPLIER[20]) , .TWONEG (INT_MULTIPLIER[21]) , .ONEPOS (INT_MULTIPLIER[22]) , .ONENEG (INT_MULTIPLIER[23]) , .PPBIT (SUMMAND[187]) );
PP_MIDDLE PPM_175 (.INA (OPA[15]) , .INB (INV_MULTIPLICAND[15]) , .INC (OPA[16]) , .IND (INV_MULTIPLICAND[16]) , .TWOPOS (INT_MULTIPLIER[20]) , .TWONEG (INT_MULTIPLIER[21]) , .ONEPOS (INT_MULTIPLIER[22]) , .ONENEG (INT_MULTIPLIER[23]) , .PPBIT (SUMMAND[200]) );
PP_MIDDLE PPM_176 (.INA (OPA[16]) , .INB (INV_MULTIPLICAND[16]) , .INC (OPA[17]) , .IND (INV_MULTIPLICAND[17]) , .TWOPOS (INT_MULTIPLIER[20]) , .TWONEG (INT_MULTIPLIER[21]) , .ONEPOS (INT_MULTIPLIER[22]) , .ONENEG (INT_MULTIPLIER[23]) , .PPBIT (SUMMAND[215]) );
PP_MIDDLE PPM_177 (.INA (OPA[17]) , .INB (INV_MULTIPLICAND[17]) , .INC (OPA[18]) , .IND (INV_MULTIPLICAND[18]) , .TWOPOS (INT_MULTIPLIER[20]) , .TWONEG (INT_MULTIPLIER[21]) , .ONEPOS (INT_MULTIPLIER[22]) , .ONENEG (INT_MULTIPLIER[23]) , .PPBIT (SUMMAND[229]) );
PP_MIDDLE PPM_178 (.INA (OPA[18]) , .INB (INV_MULTIPLICAND[18]) , .INC (OPA[19]) , .IND (INV_MULTIPLICAND[19]) , .TWOPOS (INT_MULTIPLIER[20]) , .TWONEG (INT_MULTIPLIER[21]) , .ONEPOS (INT_MULTIPLIER[22]) , .ONENEG (INT_MULTIPLIER[23]) , .PPBIT (SUMMAND[245]) );
PP_MIDDLE PPM_179 (.INA (OPA[19]) , .INB (INV_MULTIPLICAND[19]) , .INC (OPA[20]) , .IND (INV_MULTIPLICAND[20]) , .TWOPOS (INT_MULTIPLIER[20]) , .TWONEG (INT_MULTIPLIER[21]) , .ONEPOS (INT_MULTIPLIER[22]) , .ONENEG (INT_MULTIPLIER[23]) , .PPBIT (SUMMAND[260]) );
PP_MIDDLE PPM_180 (.INA (OPA[20]) , .INB (INV_MULTIPLICAND[20]) , .INC (OPA[21]) , .IND (INV_MULTIPLICAND[21]) , .TWOPOS (INT_MULTIPLIER[20]) , .TWONEG (INT_MULTIPLIER[21]) , .ONEPOS (INT_MULTIPLIER[22]) , .ONENEG (INT_MULTIPLIER[23]) , .PPBIT (SUMMAND[277]) );
PP_MIDDLE PPM_181 (.INA (OPA[21]) , .INB (INV_MULTIPLICAND[21]) , .INC (OPA[22]) , .IND (INV_MULTIPLICAND[22]) , .TWOPOS (INT_MULTIPLIER[20]) , .TWONEG (INT_MULTIPLIER[21]) , .ONEPOS (INT_MULTIPLIER[22]) , .ONENEG (INT_MULTIPLIER[23]) , .PPBIT (SUMMAND[293]) );
PP_MIDDLE PPM_182 (.INA (OPA[22]) , .INB (INV_MULTIPLICAND[22]) , .INC (OPA[23]) , .IND (INV_MULTIPLICAND[23]) , .TWOPOS (INT_MULTIPLIER[20]) , .TWONEG (INT_MULTIPLIER[21]) , .ONEPOS (INT_MULTIPLIER[22]) , .ONENEG (INT_MULTIPLIER[23]) , .PPBIT (SUMMAND[310]) );
PP_MIDDLE PPM_183 (.INA (OPA[23]) , .INB (INV_MULTIPLICAND[23]) , .INC (OPA[24]) , .IND (INV_MULTIPLICAND[24]) , .TWOPOS (INT_MULTIPLIER[20]) , .TWONEG (INT_MULTIPLIER[21]) , .ONEPOS (INT_MULTIPLIER[22]) , .ONENEG (INT_MULTIPLIER[23]) , .PPBIT (SUMMAND[326]) );
PP_MIDDLE PPM_184 (.INA (OPA[24]) , .INB (INV_MULTIPLICAND[24]) , .INC (OPA[25]) , .IND (INV_MULTIPLICAND[25]) , .TWOPOS (INT_MULTIPLIER[20]) , .TWONEG (INT_MULTIPLIER[21]) , .ONEPOS (INT_MULTIPLIER[22]) , .ONENEG (INT_MULTIPLIER[23]) , .PPBIT (SUMMAND[341]) );
PP_MIDDLE PPM_185 (.INA (OPA[25]) , .INB (INV_MULTIPLICAND[25]) , .INC (OPA[26]) , .IND (INV_MULTIPLICAND[26]) , .TWOPOS (INT_MULTIPLIER[20]) , .TWONEG (INT_MULTIPLIER[21]) , .ONEPOS (INT_MULTIPLIER[22]) , .ONENEG (INT_MULTIPLIER[23]) , .PPBIT (SUMMAND[356]) );
PP_MIDDLE PPM_186 (.INA (OPA[26]) , .INB (INV_MULTIPLICAND[26]) , .INC (OPA[27]) , .IND (INV_MULTIPLICAND[27]) , .TWOPOS (INT_MULTIPLIER[20]) , .TWONEG (INT_MULTIPLIER[21]) , .ONEPOS (INT_MULTIPLIER[22]) , .ONENEG (INT_MULTIPLIER[23]) , .PPBIT (SUMMAND[370]) );
PP_MIDDLE PPM_187 (.INA (OPA[27]) , .INB (INV_MULTIPLICAND[27]) , .INC (OPA[28]) , .IND (INV_MULTIPLICAND[28]) , .TWOPOS (INT_MULTIPLIER[20]) , .TWONEG (INT_MULTIPLIER[21]) , .ONEPOS (INT_MULTIPLIER[22]) , .ONENEG (INT_MULTIPLIER[23]) , .PPBIT (SUMMAND[384]) );
PP_MIDDLE PPM_188 (.INA (OPA[28]) , .INB (INV_MULTIPLICAND[28]) , .INC (OPA[29]) , .IND (INV_MULTIPLICAND[29]) , .TWOPOS (INT_MULTIPLIER[20]) , .TWONEG (INT_MULTIPLIER[21]) , .ONEPOS (INT_MULTIPLIER[22]) , .ONENEG (INT_MULTIPLIER[23]) , .PPBIT (SUMMAND[397]) );
PP_MIDDLE PPM_189 (.INA (OPA[29]) , .INB (INV_MULTIPLICAND[29]) , .INC (OPA[30]) , .IND (INV_MULTIPLICAND[30]) , .TWOPOS (INT_MULTIPLIER[20]) , .TWONEG (INT_MULTIPLIER[21]) , .ONEPOS (INT_MULTIPLIER[22]) , .ONENEG (INT_MULTIPLIER[23]) , .PPBIT (SUMMAND[410]) );
PP_MIDDLE PPM_190 (.INA (OPA[30]) , .INB (INV_MULTIPLICAND[30]) , .INC (OPA[31]) , .IND (INV_MULTIPLICAND[31]) , .TWOPOS (INT_MULTIPLIER[20]) , .TWONEG (INT_MULTIPLIER[21]) , .ONEPOS (INT_MULTIPLIER[22]) , .ONENEG (INT_MULTIPLIER[23]) , .PPBIT (SUMMAND[422]) );
PP_MIDDLE PPM_191 (.INA (OPA[31]) , .INB (INV_MULTIPLICAND[31]) , .INC (OPA[32]) , .IND (INV_MULTIPLICAND[32]) , .TWOPOS (INT_MULTIPLIER[20]) , .TWONEG (INT_MULTIPLIER[21]) , .ONEPOS (INT_MULTIPLIER[22]) , .ONENEG (INT_MULTIPLIER[23]) , .PPBIT (SUMMAND[433]) );
assign SUMMAND[434] = LOGIC_ONE;
PP_HIGH PPH_5 (.INA (OPA[32]) , .INB (INV_MULTIPLICAND[32]) , .TWOPOS (INT_MULTIPLIER[20]) , .TWONEG (INT_MULTIPLIER[21]) , .ONEPOS (INT_MULTIPLIER[22]) , .ONENEG (INT_MULTIPLIER[23]) , .PPBIT (SUMMAND[445]) );
DECODER DEC_6 (.INA (OPB[11]) , .INB (OPB[12]) , .INC (OPB[13]) , .TWOPOS (INT_MULTIPLIER[24]) , .TWONEG (INT_MULTIPLIER[25]) , .ONEPOS (INT_MULTIPLIER[26]) , .ONENEG (INT_MULTIPLIER[27]) );
PP_LOW PPL_6 (.INA (OPA[0]) , .INB (INV_MULTIPLICAND[0]) , .TWONEG (INT_MULTIPLIER[25]) , .ONEPOS (INT_MULTIPLIER[26]) , .ONENEG (INT_MULTIPLIER[27]) , .PPBIT (SUMMAND[54]) );
R_GATE RGATE_6 (.INA (OPB[11]) , .INB (OPB[12]) , .INC (OPB[13]) , .PPBIT (SUMMAND[55]) );
PP_MIDDLE PPM_192 (.INA (OPA[0]) , .INB (INV_MULTIPLICAND[0]) , .INC (OPA[1]) , .IND (INV_MULTIPLICAND[1]) , .TWOPOS (INT_MULTIPLIER[24]) , .TWONEG (INT_MULTIPLIER[25]) , .ONEPOS (INT_MULTIPLIER[26]) , .ONENEG (INT_MULTIPLIER[27]) , .PPBIT (SUMMAND[62]) );
PP_MIDDLE PPM_193 (.INA (OPA[1]) , .INB (INV_MULTIPLICAND[1]) , .INC (OPA[2]) , .IND (INV_MULTIPLICAND[2]) , .TWOPOS (INT_MULTIPLIER[24]) , .TWONEG (INT_MULTIPLIER[25]) , .ONEPOS (INT_MULTIPLIER[26]) , .ONENEG (INT_MULTIPLIER[27]) , .PPBIT (SUMMAND[69]) );
PP_MIDDLE PPM_194 (.INA (OPA[2]) , .INB (INV_MULTIPLICAND[2]) , .INC (OPA[3]) , .IND (INV_MULTIPLICAND[3]) , .TWOPOS (INT_MULTIPLIER[24]) , .TWONEG (INT_MULTIPLIER[25]) , .ONEPOS (INT_MULTIPLIER[26]) , .ONENEG (INT_MULTIPLIER[27]) , .PPBIT (SUMMAND[78]) );
PP_MIDDLE PPM_195 (.INA (OPA[3]) , .INB (INV_MULTIPLICAND[3]) , .INC (OPA[4]) , .IND (INV_MULTIPLICAND[4]) , .TWOPOS (INT_MULTIPLIER[24]) , .TWONEG (INT_MULTIPLIER[25]) , .ONEPOS (INT_MULTIPLIER[26]) , .ONENEG (INT_MULTIPLIER[27]) , .PPBIT (SUMMAND[86]) );
PP_MIDDLE PPM_196 (.INA (OPA[4]) , .INB (INV_MULTIPLICAND[4]) , .INC (OPA[5]) , .IND (INV_MULTIPLICAND[5]) , .TWOPOS (INT_MULTIPLIER[24]) , .TWONEG (INT_MULTIPLIER[25]) , .ONEPOS (INT_MULTIPLIER[26]) , .ONENEG (INT_MULTIPLIER[27]) , .PPBIT (SUMMAND[96]) );
PP_MIDDLE PPM_197 (.INA (OPA[5]) , .INB (INV_MULTIPLICAND[5]) , .INC (OPA[6]) , .IND (INV_MULTIPLICAND[6]) , .TWOPOS (INT_MULTIPLIER[24]) , .TWONEG (INT_MULTIPLIER[25]) , .ONEPOS (INT_MULTIPLIER[26]) , .ONENEG (INT_MULTIPLIER[27]) , .PPBIT (SUMMAND[105]) );
PP_MIDDLE PPM_198 (.INA (OPA[6]) , .INB (INV_MULTIPLICAND[6]) , .INC (OPA[7]) , .IND (INV_MULTIPLICAND[7]) , .TWOPOS (INT_MULTIPLIER[24]) , .TWONEG (INT_MULTIPLIER[25]) , .ONEPOS (INT_MULTIPLIER[26]) , .ONENEG (INT_MULTIPLIER[27]) , .PPBIT (SUMMAND[116]) );
PP_MIDDLE PPM_199 (.INA (OPA[7]) , .INB (INV_MULTIPLICAND[7]) , .INC (OPA[8]) , .IND (INV_MULTIPLICAND[8]) , .TWOPOS (INT_MULTIPLIER[24]) , .TWONEG (INT_MULTIPLIER[25]) , .ONEPOS (INT_MULTIPLIER[26]) , .ONENEG (INT_MULTIPLIER[27]) , .PPBIT (SUMMAND[126]) );
PP_MIDDLE PPM_200 (.INA (OPA[8]) , .INB (INV_MULTIPLICAND[8]) , .INC (OPA[9]) , .IND (INV_MULTIPLICAND[9]) , .TWOPOS (INT_MULTIPLIER[24]) , .TWONEG (INT_MULTIPLIER[25]) , .ONEPOS (INT_MULTIPLIER[26]) , .ONENEG (INT_MULTIPLIER[27]) , .PPBIT (SUMMAND[138]) );
PP_MIDDLE PPM_201 (.INA (OPA[9]) , .INB (INV_MULTIPLICAND[9]) , .INC (OPA[10]) , .IND (INV_MULTIPLICAND[10]) , .TWOPOS (INT_MULTIPLIER[24]) , .TWONEG (INT_MULTIPLIER[25]) , .ONEPOS (INT_MULTIPLIER[26]) , .ONENEG (INT_MULTIPLIER[27]) , .PPBIT (SUMMAND[149]) );
PP_MIDDLE PPM_202 (.INA (OPA[10]) , .INB (INV_MULTIPLICAND[10]) , .INC (OPA[11]) , .IND (INV_MULTIPLICAND[11]) , .TWOPOS (INT_MULTIPLIER[24]) , .TWONEG (INT_MULTIPLIER[25]) , .ONEPOS (INT_MULTIPLIER[26]) , .ONENEG (INT_MULTIPLIER[27]) , .PPBIT (SUMMAND[162]) );
PP_MIDDLE PPM_203 (.INA (OPA[11]) , .INB (INV_MULTIPLICAND[11]) , .INC (OPA[12]) , .IND (INV_MULTIPLICAND[12]) , .TWOPOS (INT_MULTIPLIER[24]) , .TWONEG (INT_MULTIPLIER[25]) , .ONEPOS (INT_MULTIPLIER[26]) , .ONENEG (INT_MULTIPLIER[27]) , .PPBIT (SUMMAND[174]) );
PP_MIDDLE PPM_204 (.INA (OPA[12]) , .INB (INV_MULTIPLICAND[12]) , .INC (OPA[13]) , .IND (INV_MULTIPLICAND[13]) , .TWOPOS (INT_MULTIPLIER[24]) , .TWONEG (INT_MULTIPLIER[25]) , .ONEPOS (INT_MULTIPLIER[26]) , .ONENEG (INT_MULTIPLIER[27]) , .PPBIT (SUMMAND[188]) );
PP_MIDDLE PPM_205 (.INA (OPA[13]) , .INB (INV_MULTIPLICAND[13]) , .INC (OPA[14]) , .IND (INV_MULTIPLICAND[14]) , .TWOPOS (INT_MULTIPLIER[24]) , .TWONEG (INT_MULTIPLIER[25]) , .ONEPOS (INT_MULTIPLIER[26]) , .ONENEG (INT_MULTIPLIER[27]) , .PPBIT (SUMMAND[201]) );
PP_MIDDLE PPM_206 (.INA (OPA[14]) , .INB (INV_MULTIPLICAND[14]) , .INC (OPA[15]) , .IND (INV_MULTIPLICAND[15]) , .TWOPOS (INT_MULTIPLIER[24]) , .TWONEG (INT_MULTIPLIER[25]) , .ONEPOS (INT_MULTIPLIER[26]) , .ONENEG (INT_MULTIPLIER[27]) , .PPBIT (SUMMAND[216]) );
PP_MIDDLE PPM_207 (.INA (OPA[15]) , .INB (INV_MULTIPLICAND[15]) , .INC (OPA[16]) , .IND (INV_MULTIPLICAND[16]) , .TWOPOS (INT_MULTIPLIER[24]) , .TWONEG (INT_MULTIPLIER[25]) , .ONEPOS (INT_MULTIPLIER[26]) , .ONENEG (INT_MULTIPLIER[27]) , .PPBIT (SUMMAND[230]) );
PP_MIDDLE PPM_208 (.INA (OPA[16]) , .INB (INV_MULTIPLICAND[16]) , .INC (OPA[17]) , .IND (INV_MULTIPLICAND[17]) , .TWOPOS (INT_MULTIPLIER[24]) , .TWONEG (INT_MULTIPLIER[25]) , .ONEPOS (INT_MULTIPLIER[26]) , .ONENEG (INT_MULTIPLIER[27]) , .PPBIT (SUMMAND[246]) );
PP_MIDDLE PPM_209 (.INA (OPA[17]) , .INB (INV_MULTIPLICAND[17]) , .INC (OPA[18]) , .IND (INV_MULTIPLICAND[18]) , .TWOPOS (INT_MULTIPLIER[24]) , .TWONEG (INT_MULTIPLIER[25]) , .ONEPOS (INT_MULTIPLIER[26]) , .ONENEG (INT_MULTIPLIER[27]) , .PPBIT (SUMMAND[261]) );
PP_MIDDLE PPM_210 (.INA (OPA[18]) , .INB (INV_MULTIPLICAND[18]) , .INC (OPA[19]) , .IND (INV_MULTIPLICAND[19]) , .TWOPOS (INT_MULTIPLIER[24]) , .TWONEG (INT_MULTIPLIER[25]) , .ONEPOS (INT_MULTIPLIER[26]) , .ONENEG (INT_MULTIPLIER[27]) , .PPBIT (SUMMAND[278]) );
PP_MIDDLE PPM_211 (.INA (OPA[19]) , .INB (INV_MULTIPLICAND[19]) , .INC (OPA[20]) , .IND (INV_MULTIPLICAND[20]) , .TWOPOS (INT_MULTIPLIER[24]) , .TWONEG (INT_MULTIPLIER[25]) , .ONEPOS (INT_MULTIPLIER[26]) , .ONENEG (INT_MULTIPLIER[27]) , .PPBIT (SUMMAND[294]) );
PP_MIDDLE PPM_212 (.INA (OPA[20]) , .INB (INV_MULTIPLICAND[20]) , .INC (OPA[21]) , .IND (INV_MULTIPLICAND[21]) , .TWOPOS (INT_MULTIPLIER[24]) , .TWONEG (INT_MULTIPLIER[25]) , .ONEPOS (INT_MULTIPLIER[26]) , .ONENEG (INT_MULTIPLIER[27]) , .PPBIT (SUMMAND[311]) );
PP_MIDDLE PPM_213 (.INA (OPA[21]) , .INB (INV_MULTIPLICAND[21]) , .INC (OPA[22]) , .IND (INV_MULTIPLICAND[22]) , .TWOPOS (INT_MULTIPLIER[24]) , .TWONEG (INT_MULTIPLIER[25]) , .ONEPOS (INT_MULTIPLIER[26]) , .ONENEG (INT_MULTIPLIER[27]) , .PPBIT (SUMMAND[327]) );
PP_MIDDLE PPM_214 (.INA (OPA[22]) , .INB (INV_MULTIPLICAND[22]) , .INC (OPA[23]) , .IND (INV_MULTIPLICAND[23]) , .TWOPOS (INT_MULTIPLIER[24]) , .TWONEG (INT_MULTIPLIER[25]) , .ONEPOS (INT_MULTIPLIER[26]) , .ONENEG (INT_MULTIPLIER[27]) , .PPBIT (SUMMAND[342]) );
PP_MIDDLE PPM_215 (.INA (OPA[23]) , .INB (INV_MULTIPLICAND[23]) , .INC (OPA[24]) , .IND (INV_MULTIPLICAND[24]) , .TWOPOS (INT_MULTIPLIER[24]) , .TWONEG (INT_MULTIPLIER[25]) , .ONEPOS (INT_MULTIPLIER[26]) , .ONENEG (INT_MULTIPLIER[27]) , .PPBIT (SUMMAND[357]) );
PP_MIDDLE PPM_216 (.INA (OPA[24]) , .INB (INV_MULTIPLICAND[24]) , .INC (OPA[25]) , .IND (INV_MULTIPLICAND[25]) , .TWOPOS (INT_MULTIPLIER[24]) , .TWONEG (INT_MULTIPLIER[25]) , .ONEPOS (INT_MULTIPLIER[26]) , .ONENEG (INT_MULTIPLIER[27]) , .PPBIT (SUMMAND[371]) );
PP_MIDDLE PPM_217 (.INA (OPA[25]) , .INB (INV_MULTIPLICAND[25]) , .INC (OPA[26]) , .IND (INV_MULTIPLICAND[26]) , .TWOPOS (INT_MULTIPLIER[24]) , .TWONEG (INT_MULTIPLIER[25]) , .ONEPOS (INT_MULTIPLIER[26]) , .ONENEG (INT_MULTIPLIER[27]) , .PPBIT (SUMMAND[385]) );
PP_MIDDLE PPM_218 (.INA (OPA[26]) , .INB (INV_MULTIPLICAND[26]) , .INC (OPA[27]) , .IND (INV_MULTIPLICAND[27]) , .TWOPOS (INT_MULTIPLIER[24]) , .TWONEG (INT_MULTIPLIER[25]) , .ONEPOS (INT_MULTIPLIER[26]) , .ONENEG (INT_MULTIPLIER[27]) , .PPBIT (SUMMAND[398]) );
PP_MIDDLE PPM_219 (.INA (OPA[27]) , .INB (INV_MULTIPLICAND[27]) , .INC (OPA[28]) , .IND (INV_MULTIPLICAND[28]) , .TWOPOS (INT_MULTIPLIER[24]) , .TWONEG (INT_MULTIPLIER[25]) , .ONEPOS (INT_MULTIPLIER[26]) , .ONENEG (INT_MULTIPLIER[27]) , .PPBIT (SUMMAND[411]) );
PP_MIDDLE PPM_220 (.INA (OPA[28]) , .INB (INV_MULTIPLICAND[28]) , .INC (OPA[29]) , .IND (INV_MULTIPLICAND[29]) , .TWOPOS (INT_MULTIPLIER[24]) , .TWONEG (INT_MULTIPLIER[25]) , .ONEPOS (INT_MULTIPLIER[26]) , .ONENEG (INT_MULTIPLIER[27]) , .PPBIT (SUMMAND[423]) );
PP_MIDDLE PPM_221 (.INA (OPA[29]) , .INB (INV_MULTIPLICAND[29]) , .INC (OPA[30]) , .IND (INV_MULTIPLICAND[30]) , .TWOPOS (INT_MULTIPLIER[24]) , .TWONEG (INT_MULTIPLIER[25]) , .ONEPOS (INT_MULTIPLIER[26]) , .ONENEG (INT_MULTIPLIER[27]) , .PPBIT (SUMMAND[435]) );
PP_MIDDLE PPM_222 (.INA (OPA[30]) , .INB (INV_MULTIPLICAND[30]) , .INC (OPA[31]) , .IND (INV_MULTIPLICAND[31]) , .TWOPOS (INT_MULTIPLIER[24]) , .TWONEG (INT_MULTIPLIER[25]) , .ONEPOS (INT_MULTIPLIER[26]) , .ONENEG (INT_MULTIPLIER[27]) , .PPBIT (SUMMAND[446]) );
PP_MIDDLE PPM_223 (.INA (OPA[31]) , .INB (INV_MULTIPLICAND[31]) , .INC (OPA[32]) , .IND (INV_MULTIPLICAND[32]) , .TWOPOS (INT_MULTIPLIER[24]) , .TWONEG (INT_MULTIPLIER[25]) , .ONEPOS (INT_MULTIPLIER[26]) , .ONENEG (INT_MULTIPLIER[27]) , .PPBIT (SUMMAND[456]) );
assign SUMMAND[457] = LOGIC_ONE;
PP_HIGH PPH_6 (.INA (OPA[32]) , .INB (INV_MULTIPLICAND[32]) , .TWOPOS (INT_MULTIPLIER[24]) , .TWONEG (INT_MULTIPLIER[25]) , .ONEPOS (INT_MULTIPLIER[26]) , .ONENEG (INT_MULTIPLIER[27]) , .PPBIT (SUMMAND[467]) );
DECODER DEC_7 (.INA (OPB[13]) , .INB (OPB[14]) , .INC (OPB[15]) , .TWOPOS (INT_MULTIPLIER[28]) , .TWONEG (INT_MULTIPLIER[29]) , .ONEPOS (INT_MULTIPLIER[30]) , .ONENEG (INT_MULTIPLIER[31]) );
PP_LOW PPL_7 (.INA (OPA[0]) , .INB (INV_MULTIPLICAND[0]) , .TWONEG (INT_MULTIPLIER[29]) , .ONEPOS (INT_MULTIPLIER[30]) , .ONENEG (INT_MULTIPLIER[31]) , .PPBIT (SUMMAND[70]) );
R_GATE RGATE_7 (.INA (OPB[13]) , .INB (OPB[14]) , .INC (OPB[15]) , .PPBIT (SUMMAND[71]) );
PP_MIDDLE PPM_224 (.INA (OPA[0]) , .INB (INV_MULTIPLICAND[0]) , .INC (OPA[1]) , .IND (INV_MULTIPLICAND[1]) , .TWOPOS (INT_MULTIPLIER[28]) , .TWONEG (INT_MULTIPLIER[29]) , .ONEPOS (INT_MULTIPLIER[30]) , .ONENEG (INT_MULTIPLIER[31]) , .PPBIT (SUMMAND[79]) );
PP_MIDDLE PPM_225 (.INA (OPA[1]) , .INB (INV_MULTIPLICAND[1]) , .INC (OPA[2]) , .IND (INV_MULTIPLICAND[2]) , .TWOPOS (INT_MULTIPLIER[28]) , .TWONEG (INT_MULTIPLIER[29]) , .ONEPOS (INT_MULTIPLIER[30]) , .ONENEG (INT_MULTIPLIER[31]) , .PPBIT (SUMMAND[87]) );
PP_MIDDLE PPM_226 (.INA (OPA[2]) , .INB (INV_MULTIPLICAND[2]) , .INC (OPA[3]) , .IND (INV_MULTIPLICAND[3]) , .TWOPOS (INT_MULTIPLIER[28]) , .TWONEG (INT_MULTIPLIER[29]) , .ONEPOS (INT_MULTIPLIER[30]) , .ONENEG (INT_MULTIPLIER[31]) , .PPBIT (SUMMAND[97]) );
PP_MIDDLE PPM_227 (.INA (OPA[3]) , .INB (INV_MULTIPLICAND[3]) , .INC (OPA[4]) , .IND (INV_MULTIPLICAND[4]) , .TWOPOS (INT_MULTIPLIER[28]) , .TWONEG (INT_MULTIPLIER[29]) , .ONEPOS (INT_MULTIPLIER[30]) , .ONENEG (INT_MULTIPLIER[31]) , .PPBIT (SUMMAND[106]) );
PP_MIDDLE PPM_228 (.INA (OPA[4]) , .INB (INV_MULTIPLICAND[4]) , .INC (OPA[5]) , .IND (INV_MULTIPLICAND[5]) , .TWOPOS (INT_MULTIPLIER[28]) , .TWONEG (INT_MULTIPLIER[29]) , .ONEPOS (INT_MULTIPLIER[30]) , .ONENEG (INT_MULTIPLIER[31]) , .PPBIT (SUMMAND[117]) );
PP_MIDDLE PPM_229 (.INA (OPA[5]) , .INB (INV_MULTIPLICAND[5]) , .INC (OPA[6]) , .IND (INV_MULTIPLICAND[6]) , .TWOPOS (INT_MULTIPLIER[28]) , .TWONEG (INT_MULTIPLIER[29]) , .ONEPOS (INT_MULTIPLIER[30]) , .ONENEG (INT_MULTIPLIER[31]) , .PPBIT (SUMMAND[127]) );
PP_MIDDLE PPM_230 (.INA (OPA[6]) , .INB (INV_MULTIPLICAND[6]) , .INC (OPA[7]) , .IND (INV_MULTIPLICAND[7]) , .TWOPOS (INT_MULTIPLIER[28]) , .TWONEG (INT_MULTIPLIER[29]) , .ONEPOS (INT_MULTIPLIER[30]) , .ONENEG (INT_MULTIPLIER[31]) , .PPBIT (SUMMAND[139]) );
PP_MIDDLE PPM_231 (.INA (OPA[7]) , .INB (INV_MULTIPLICAND[7]) , .INC (OPA[8]) , .IND (INV_MULTIPLICAND[8]) , .TWOPOS (INT_MULTIPLIER[28]) , .TWONEG (INT_MULTIPLIER[29]) , .ONEPOS (INT_MULTIPLIER[30]) , .ONENEG (INT_MULTIPLIER[31]) , .PPBIT (SUMMAND[150]) );
PP_MIDDLE PPM_232 (.INA (OPA[8]) , .INB (INV_MULTIPLICAND[8]) , .INC (OPA[9]) , .IND (INV_MULTIPLICAND[9]) , .TWOPOS (INT_MULTIPLIER[28]) , .TWONEG (INT_MULTIPLIER[29]) , .ONEPOS (INT_MULTIPLIER[30]) , .ONENEG (INT_MULTIPLIER[31]) , .PPBIT (SUMMAND[163]) );
PP_MIDDLE PPM_233 (.INA (OPA[9]) , .INB (INV_MULTIPLICAND[9]) , .INC (OPA[10]) , .IND (INV_MULTIPLICAND[10]) , .TWOPOS (INT_MULTIPLIER[28]) , .TWONEG (INT_MULTIPLIER[29]) , .ONEPOS (INT_MULTIPLIER[30]) , .ONENEG (INT_MULTIPLIER[31]) , .PPBIT (SUMMAND[175]) );
PP_MIDDLE PPM_234 (.INA (OPA[10]) , .INB (INV_MULTIPLICAND[10]) , .INC (OPA[11]) , .IND (INV_MULTIPLICAND[11]) , .TWOPOS (INT_MULTIPLIER[28]) , .TWONEG (INT_MULTIPLIER[29]) , .ONEPOS (INT_MULTIPLIER[30]) , .ONENEG (INT_MULTIPLIER[31]) , .PPBIT (SUMMAND[189]) );
PP_MIDDLE PPM_235 (.INA (OPA[11]) , .INB (INV_MULTIPLICAND[11]) , .INC (OPA[12]) , .IND (INV_MULTIPLICAND[12]) , .TWOPOS (INT_MULTIPLIER[28]) , .TWONEG (INT_MULTIPLIER[29]) , .ONEPOS (INT_MULTIPLIER[30]) , .ONENEG (INT_MULTIPLIER[31]) , .PPBIT (SUMMAND[202]) );
PP_MIDDLE PPM_236 (.INA (OPA[12]) , .INB (INV_MULTIPLICAND[12]) , .INC (OPA[13]) , .IND (INV_MULTIPLICAND[13]) , .TWOPOS (INT_MULTIPLIER[28]) , .TWONEG (INT_MULTIPLIER[29]) , .ONEPOS (INT_MULTIPLIER[30]) , .ONENEG (INT_MULTIPLIER[31]) , .PPBIT (SUMMAND[217]) );
PP_MIDDLE PPM_237 (.INA (OPA[13]) , .INB (INV_MULTIPLICAND[13]) , .INC (OPA[14]) , .IND (INV_MULTIPLICAND[14]) , .TWOPOS (INT_MULTIPLIER[28]) , .TWONEG (INT_MULTIPLIER[29]) , .ONEPOS (INT_MULTIPLIER[30]) , .ONENEG (INT_MULTIPLIER[31]) , .PPBIT (SUMMAND[231]) );
PP_MIDDLE PPM_238 (.INA (OPA[14]) , .INB (INV_MULTIPLICAND[14]) , .INC (OPA[15]) , .IND (INV_MULTIPLICAND[15]) , .TWOPOS (INT_MULTIPLIER[28]) , .TWONEG (INT_MULTIPLIER[29]) , .ONEPOS (INT_MULTIPLIER[30]) , .ONENEG (INT_MULTIPLIER[31]) , .PPBIT (SUMMAND[247]) );
PP_MIDDLE PPM_239 (.INA (OPA[15]) , .INB (INV_MULTIPLICAND[15]) , .INC (OPA[16]) , .IND (INV_MULTIPLICAND[16]) , .TWOPOS (INT_MULTIPLIER[28]) , .TWONEG (INT_MULTIPLIER[29]) , .ONEPOS (INT_MULTIPLIER[30]) , .ONENEG (INT_MULTIPLIER[31]) , .PPBIT (SUMMAND[262]) );
PP_MIDDLE PPM_240 (.INA (OPA[16]) , .INB (INV_MULTIPLICAND[16]) , .INC (OPA[17]) , .IND (INV_MULTIPLICAND[17]) , .TWOPOS (INT_MULTIPLIER[28]) , .TWONEG (INT_MULTIPLIER[29]) , .ONEPOS (INT_MULTIPLIER[30]) , .ONENEG (INT_MULTIPLIER[31]) , .PPBIT (SUMMAND[279]) );
PP_MIDDLE PPM_241 (.INA (OPA[17]) , .INB (INV_MULTIPLICAND[17]) , .INC (OPA[18]) , .IND (INV_MULTIPLICAND[18]) , .TWOPOS (INT_MULTIPLIER[28]) , .TWONEG (INT_MULTIPLIER[29]) , .ONEPOS (INT_MULTIPLIER[30]) , .ONENEG (INT_MULTIPLIER[31]) , .PPBIT (SUMMAND[295]) );
PP_MIDDLE PPM_242 (.INA (OPA[18]) , .INB (INV_MULTIPLICAND[18]) , .INC (OPA[19]) , .IND (INV_MULTIPLICAND[19]) , .TWOPOS (INT_MULTIPLIER[28]) , .TWONEG (INT_MULTIPLIER[29]) , .ONEPOS (INT_MULTIPLIER[30]) , .ONENEG (INT_MULTIPLIER[31]) , .PPBIT (SUMMAND[312]) );
PP_MIDDLE PPM_243 (.INA (OPA[19]) , .INB (INV_MULTIPLICAND[19]) , .INC (OPA[20]) , .IND (INV_MULTIPLICAND[20]) , .TWOPOS (INT_MULTIPLIER[28]) , .TWONEG (INT_MULTIPLIER[29]) , .ONEPOS (INT_MULTIPLIER[30]) , .ONENEG (INT_MULTIPLIER[31]) , .PPBIT (SUMMAND[328]) );
PP_MIDDLE PPM_244 (.INA (OPA[20]) , .INB (INV_MULTIPLICAND[20]) , .INC (OPA[21]) , .IND (INV_MULTIPLICAND[21]) , .TWOPOS (INT_MULTIPLIER[28]) , .TWONEG (INT_MULTIPLIER[29]) , .ONEPOS (INT_MULTIPLIER[30]) , .ONENEG (INT_MULTIPLIER[31]) , .PPBIT (SUMMAND[343]) );
PP_MIDDLE PPM_245 (.INA (OPA[21]) , .INB (INV_MULTIPLICAND[21]) , .INC (OPA[22]) , .IND (INV_MULTIPLICAND[22]) , .TWOPOS (INT_MULTIPLIER[28]) , .TWONEG (INT_MULTIPLIER[29]) , .ONEPOS (INT_MULTIPLIER[30]) , .ONENEG (INT_MULTIPLIER[31]) , .PPBIT (SUMMAND[358]) );
PP_MIDDLE PPM_246 (.INA (OPA[22]) , .INB (INV_MULTIPLICAND[22]) , .INC (OPA[23]) , .IND (INV_MULTIPLICAND[23]) , .TWOPOS (INT_MULTIPLIER[28]) , .TWONEG (INT_MULTIPLIER[29]) , .ONEPOS (INT_MULTIPLIER[30]) , .ONENEG (INT_MULTIPLIER[31]) , .PPBIT (SUMMAND[372]) );
PP_MIDDLE PPM_247 (.INA (OPA[23]) , .INB (INV_MULTIPLICAND[23]) , .INC (OPA[24]) , .IND (INV_MULTIPLICAND[24]) , .TWOPOS (INT_MULTIPLIER[28]) , .TWONEG (INT_MULTIPLIER[29]) , .ONEPOS (INT_MULTIPLIER[30]) , .ONENEG (INT_MULTIPLIER[31]) , .PPBIT (SUMMAND[386]) );
PP_MIDDLE PPM_248 (.INA (OPA[24]) , .INB (INV_MULTIPLICAND[24]) , .INC (OPA[25]) , .IND (INV_MULTIPLICAND[25]) , .TWOPOS (INT_MULTIPLIER[28]) , .TWONEG (INT_MULTIPLIER[29]) , .ONEPOS (INT_MULTIPLIER[30]) , .ONENEG (INT_MULTIPLIER[31]) , .PPBIT (SUMMAND[399]) );
PP_MIDDLE PPM_249 (.INA (OPA[25]) , .INB (INV_MULTIPLICAND[25]) , .INC (OPA[26]) , .IND (INV_MULTIPLICAND[26]) , .TWOPOS (INT_MULTIPLIER[28]) , .TWONEG (INT_MULTIPLIER[29]) , .ONEPOS (INT_MULTIPLIER[30]) , .ONENEG (INT_MULTIPLIER[31]) , .PPBIT (SUMMAND[412]) );
PP_MIDDLE PPM_250 (.INA (OPA[26]) , .INB (INV_MULTIPLICAND[26]) , .INC (OPA[27]) , .IND (INV_MULTIPLICAND[27]) , .TWOPOS (INT_MULTIPLIER[28]) , .TWONEG (INT_MULTIPLIER[29]) , .ONEPOS (INT_MULTIPLIER[30]) , .ONENEG (INT_MULTIPLIER[31]) , .PPBIT (SUMMAND[424]) );
PP_MIDDLE PPM_251 (.INA (OPA[27]) , .INB (INV_MULTIPLICAND[27]) , .INC (OPA[28]) , .IND (INV_MULTIPLICAND[28]) , .TWOPOS (INT_MULTIPLIER[28]) , .TWONEG (INT_MULTIPLIER[29]) , .ONEPOS (INT_MULTIPLIER[30]) , .ONENEG (INT_MULTIPLIER[31]) , .PPBIT (SUMMAND[436]) );
PP_MIDDLE PPM_252 (.INA (OPA[28]) , .INB (INV_MULTIPLICAND[28]) , .INC (OPA[29]) , .IND (INV_MULTIPLICAND[29]) , .TWOPOS (INT_MULTIPLIER[28]) , .TWONEG (INT_MULTIPLIER[29]) , .ONEPOS (INT_MULTIPLIER[30]) , .ONENEG (INT_MULTIPLIER[31]) , .PPBIT (SUMMAND[447]) );
PP_MIDDLE PPM_253 (.INA (OPA[29]) , .INB (INV_MULTIPLICAND[29]) , .INC (OPA[30]) , .IND (INV_MULTIPLICAND[30]) , .TWOPOS (INT_MULTIPLIER[28]) , .TWONEG (INT_MULTIPLIER[29]) , .ONEPOS (INT_MULTIPLIER[30]) , .ONENEG (INT_MULTIPLIER[31]) , .PPBIT (SUMMAND[458]) );
PP_MIDDLE PPM_254 (.INA (OPA[30]) , .INB (INV_MULTIPLICAND[30]) , .INC (OPA[31]) , .IND (INV_MULTIPLICAND[31]) , .TWOPOS (INT_MULTIPLIER[28]) , .TWONEG (INT_MULTIPLIER[29]) , .ONEPOS (INT_MULTIPLIER[30]) , .ONENEG (INT_MULTIPLIER[31]) , .PPBIT (SUMMAND[468]) );
PP_MIDDLE PPM_255 (.INA (OPA[31]) , .INB (INV_MULTIPLICAND[31]) , .INC (OPA[32]) , .IND (INV_MULTIPLICAND[32]) , .TWOPOS (INT_MULTIPLIER[28]) , .TWONEG (INT_MULTIPLIER[29]) , .ONEPOS (INT_MULTIPLIER[30]) , .ONENEG (INT_MULTIPLIER[31]) , .PPBIT (SUMMAND[477]) );
assign SUMMAND[478] = LOGIC_ONE;
PP_HIGH PPH_7 (.INA (OPA[32]) , .INB (INV_MULTIPLICAND[32]) , .TWOPOS (INT_MULTIPLIER[28]) , .TWONEG (INT_MULTIPLIER[29]) , .ONEPOS (INT_MULTIPLIER[30]) , .ONENEG (INT_MULTIPLIER[31]) , .PPBIT (SUMMAND[487]) );
DECODER DEC_8 (.INA (OPB[15]) , .INB (OPB[16]) , .INC (OPB[17]) , .TWOPOS (INT_MULTIPLIER[32]) , .TWONEG (INT_MULTIPLIER[33]) , .ONEPOS (INT_MULTIPLIER[34]) , .ONENEG (INT_MULTIPLIER[35]) );
PP_LOW PPL_8 (.INA (OPA[0]) , .INB (INV_MULTIPLICAND[0]) , .TWONEG (INT_MULTIPLIER[33]) , .ONEPOS (INT_MULTIPLIER[34]) , .ONENEG (INT_MULTIPLIER[35]) , .PPBIT (SUMMAND[88]) );
R_GATE RGATE_8 (.INA (OPB[15]) , .INB (OPB[16]) , .INC (OPB[17]) , .PPBIT (SUMMAND[89]) );
PP_MIDDLE PPM_256 (.INA (OPA[0]) , .INB (INV_MULTIPLICAND[0]) , .INC (OPA[1]) , .IND (INV_MULTIPLICAND[1]) , .TWOPOS (INT_MULTIPLIER[32]) , .TWONEG (INT_MULTIPLIER[33]) , .ONEPOS (INT_MULTIPLIER[34]) , .ONENEG (INT_MULTIPLIER[35]) , .PPBIT (SUMMAND[98]) );
PP_MIDDLE PPM_257 (.INA (OPA[1]) , .INB (INV_MULTIPLICAND[1]) , .INC (OPA[2]) , .IND (INV_MULTIPLICAND[2]) , .TWOPOS (INT_MULTIPLIER[32]) , .TWONEG (INT_MULTIPLIER[33]) , .ONEPOS (INT_MULTIPLIER[34]) , .ONENEG (INT_MULTIPLIER[35]) , .PPBIT (SUMMAND[107]) );
PP_MIDDLE PPM_258 (.INA (OPA[2]) , .INB (INV_MULTIPLICAND[2]) , .INC (OPA[3]) , .IND (INV_MULTIPLICAND[3]) , .TWOPOS (INT_MULTIPLIER[32]) , .TWONEG (INT_MULTIPLIER[33]) , .ONEPOS (INT_MULTIPLIER[34]) , .ONENEG (INT_MULTIPLIER[35]) , .PPBIT (SUMMAND[118]) );
PP_MIDDLE PPM_259 (.INA (OPA[3]) , .INB (INV_MULTIPLICAND[3]) , .INC (OPA[4]) , .IND (INV_MULTIPLICAND[4]) , .TWOPOS (INT_MULTIPLIER[32]) , .TWONEG (INT_MULTIPLIER[33]) , .ONEPOS (INT_MULTIPLIER[34]) , .ONENEG (INT_MULTIPLIER[35]) , .PPBIT (SUMMAND[128]) );
PP_MIDDLE PPM_260 (.INA (OPA[4]) , .INB (INV_MULTIPLICAND[4]) , .INC (OPA[5]) , .IND (INV_MULTIPLICAND[5]) , .TWOPOS (INT_MULTIPLIER[32]) , .TWONEG (INT_MULTIPLIER[33]) , .ONEPOS (INT_MULTIPLIER[34]) , .ONENEG (INT_MULTIPLIER[35]) , .PPBIT (SUMMAND[140]) );
PP_MIDDLE PPM_261 (.INA (OPA[5]) , .INB (INV_MULTIPLICAND[5]) , .INC (OPA[6]) , .IND (INV_MULTIPLICAND[6]) , .TWOPOS (INT_MULTIPLIER[32]) , .TWONEG (INT_MULTIPLIER[33]) , .ONEPOS (INT_MULTIPLIER[34]) , .ONENEG (INT_MULTIPLIER[35]) , .PPBIT (SUMMAND[151]) );
PP_MIDDLE PPM_262 (.INA (OPA[6]) , .INB (INV_MULTIPLICAND[6]) , .INC (OPA[7]) , .IND (INV_MULTIPLICAND[7]) , .TWOPOS (INT_MULTIPLIER[32]) , .TWONEG (INT_MULTIPLIER[33]) , .ONEPOS (INT_MULTIPLIER[34]) , .ONENEG (INT_MULTIPLIER[35]) , .PPBIT (SUMMAND[164]) );
PP_MIDDLE PPM_263 (.INA (OPA[7]) , .INB (INV_MULTIPLICAND[7]) , .INC (OPA[8]) , .IND (INV_MULTIPLICAND[8]) , .TWOPOS (INT_MULTIPLIER[32]) , .TWONEG (INT_MULTIPLIER[33]) , .ONEPOS (INT_MULTIPLIER[34]) , .ONENEG (INT_MULTIPLIER[35]) , .PPBIT (SUMMAND[176]) );
PP_MIDDLE PPM_264 (.INA (OPA[8]) , .INB (INV_MULTIPLICAND[8]) , .INC (OPA[9]) , .IND (INV_MULTIPLICAND[9]) , .TWOPOS (INT_MULTIPLIER[32]) , .TWONEG (INT_MULTIPLIER[33]) , .ONEPOS (INT_MULTIPLIER[34]) , .ONENEG (INT_MULTIPLIER[35]) , .PPBIT (SUMMAND[190]) );
PP_MIDDLE PPM_265 (.INA (OPA[9]) , .INB (INV_MULTIPLICAND[9]) , .INC (OPA[10]) , .IND (INV_MULTIPLICAND[10]) , .TWOPOS (INT_MULTIPLIER[32]) , .TWONEG (INT_MULTIPLIER[33]) , .ONEPOS (INT_MULTIPLIER[34]) , .ONENEG (INT_MULTIPLIER[35]) , .PPBIT (SUMMAND[203]) );
PP_MIDDLE PPM_266 (.INA (OPA[10]) , .INB (INV_MULTIPLICAND[10]) , .INC (OPA[11]) , .IND (INV_MULTIPLICAND[11]) , .TWOPOS (INT_MULTIPLIER[32]) , .TWONEG (INT_MULTIPLIER[33]) , .ONEPOS (INT_MULTIPLIER[34]) , .ONENEG (INT_MULTIPLIER[35]) , .PPBIT (SUMMAND[218]) );
PP_MIDDLE PPM_267 (.INA (OPA[11]) , .INB (INV_MULTIPLICAND[11]) , .INC (OPA[12]) , .IND (INV_MULTIPLICAND[12]) , .TWOPOS (INT_MULTIPLIER[32]) , .TWONEG (INT_MULTIPLIER[33]) , .ONEPOS (INT_MULTIPLIER[34]) , .ONENEG (INT_MULTIPLIER[35]) , .PPBIT (SUMMAND[232]) );
PP_MIDDLE PPM_268 (.INA (OPA[12]) , .INB (INV_MULTIPLICAND[12]) , .INC (OPA[13]) , .IND (INV_MULTIPLICAND[13]) , .TWOPOS (INT_MULTIPLIER[32]) , .TWONEG (INT_MULTIPLIER[33]) , .ONEPOS (INT_MULTIPLIER[34]) , .ONENEG (INT_MULTIPLIER[35]) , .PPBIT (SUMMAND[248]) );
PP_MIDDLE PPM_269 (.INA (OPA[13]) , .INB (INV_MULTIPLICAND[13]) , .INC (OPA[14]) , .IND (INV_MULTIPLICAND[14]) , .TWOPOS (INT_MULTIPLIER[32]) , .TWONEG (INT_MULTIPLIER[33]) , .ONEPOS (INT_MULTIPLIER[34]) , .ONENEG (INT_MULTIPLIER[35]) , .PPBIT (SUMMAND[263]) );
PP_MIDDLE PPM_270 (.INA (OPA[14]) , .INB (INV_MULTIPLICAND[14]) , .INC (OPA[15]) , .IND (INV_MULTIPLICAND[15]) , .TWOPOS (INT_MULTIPLIER[32]) , .TWONEG (INT_MULTIPLIER[33]) , .ONEPOS (INT_MULTIPLIER[34]) , .ONENEG (INT_MULTIPLIER[35]) , .PPBIT (SUMMAND[280]) );
PP_MIDDLE PPM_271 (.INA (OPA[15]) , .INB (INV_MULTIPLICAND[15]) , .INC (OPA[16]) , .IND (INV_MULTIPLICAND[16]) , .TWOPOS (INT_MULTIPLIER[32]) , .TWONEG (INT_MULTIPLIER[33]) , .ONEPOS (INT_MULTIPLIER[34]) , .ONENEG (INT_MULTIPLIER[35]) , .PPBIT (SUMMAND[296]) );
PP_MIDDLE PPM_272 (.INA (OPA[16]) , .INB (INV_MULTIPLICAND[16]) , .INC (OPA[17]) , .IND (INV_MULTIPLICAND[17]) , .TWOPOS (INT_MULTIPLIER[32]) , .TWONEG (INT_MULTIPLIER[33]) , .ONEPOS (INT_MULTIPLIER[34]) , .ONENEG (INT_MULTIPLIER[35]) , .PPBIT (SUMMAND[313]) );
PP_MIDDLE PPM_273 (.INA (OPA[17]) , .INB (INV_MULTIPLICAND[17]) , .INC (OPA[18]) , .IND (INV_MULTIPLICAND[18]) , .TWOPOS (INT_MULTIPLIER[32]) , .TWONEG (INT_MULTIPLIER[33]) , .ONEPOS (INT_MULTIPLIER[34]) , .ONENEG (INT_MULTIPLIER[35]) , .PPBIT (SUMMAND[329]) );
PP_MIDDLE PPM_274 (.INA (OPA[18]) , .INB (INV_MULTIPLICAND[18]) , .INC (OPA[19]) , .IND (INV_MULTIPLICAND[19]) , .TWOPOS (INT_MULTIPLIER[32]) , .TWONEG (INT_MULTIPLIER[33]) , .ONEPOS (INT_MULTIPLIER[34]) , .ONENEG (INT_MULTIPLIER[35]) , .PPBIT (SUMMAND[344]) );
PP_MIDDLE PPM_275 (.INA (OPA[19]) , .INB (INV_MULTIPLICAND[19]) , .INC (OPA[20]) , .IND (INV_MULTIPLICAND[20]) , .TWOPOS (INT_MULTIPLIER[32]) , .TWONEG (INT_MULTIPLIER[33]) , .ONEPOS (INT_MULTIPLIER[34]) , .ONENEG (INT_MULTIPLIER[35]) , .PPBIT (SUMMAND[359]) );
PP_MIDDLE PPM_276 (.INA (OPA[20]) , .INB (INV_MULTIPLICAND[20]) , .INC (OPA[21]) , .IND (INV_MULTIPLICAND[21]) , .TWOPOS (INT_MULTIPLIER[32]) , .TWONEG (INT_MULTIPLIER[33]) , .ONEPOS (INT_MULTIPLIER[34]) , .ONENEG (INT_MULTIPLIER[35]) , .PPBIT (SUMMAND[373]) );
PP_MIDDLE PPM_277 (.INA (OPA[21]) , .INB (INV_MULTIPLICAND[21]) , .INC (OPA[22]) , .IND (INV_MULTIPLICAND[22]) , .TWOPOS (INT_MULTIPLIER[32]) , .TWONEG (INT_MULTIPLIER[33]) , .ONEPOS (INT_MULTIPLIER[34]) , .ONENEG (INT_MULTIPLIER[35]) , .PPBIT (SUMMAND[387]) );
PP_MIDDLE PPM_278 (.INA (OPA[22]) , .INB (INV_MULTIPLICAND[22]) , .INC (OPA[23]) , .IND (INV_MULTIPLICAND[23]) , .TWOPOS (INT_MULTIPLIER[32]) , .TWONEG (INT_MULTIPLIER[33]) , .ONEPOS (INT_MULTIPLIER[34]) , .ONENEG (INT_MULTIPLIER[35]) , .PPBIT (SUMMAND[400]) );
PP_MIDDLE PPM_279 (.INA (OPA[23]) , .INB (INV_MULTIPLICAND[23]) , .INC (OPA[24]) , .IND (INV_MULTIPLICAND[24]) , .TWOPOS (INT_MULTIPLIER[32]) , .TWONEG (INT_MULTIPLIER[33]) , .ONEPOS (INT_MULTIPLIER[34]) , .ONENEG (INT_MULTIPLIER[35]) , .PPBIT (SUMMAND[413]) );
PP_MIDDLE PPM_280 (.INA (OPA[24]) , .INB (INV_MULTIPLICAND[24]) , .INC (OPA[25]) , .IND (INV_MULTIPLICAND[25]) , .TWOPOS (INT_MULTIPLIER[32]) , .TWONEG (INT_MULTIPLIER[33]) , .ONEPOS (INT_MULTIPLIER[34]) , .ONENEG (INT_MULTIPLIER[35]) , .PPBIT (SUMMAND[425]) );
PP_MIDDLE PPM_281 (.INA (OPA[25]) , .INB (INV_MULTIPLICAND[25]) , .INC (OPA[26]) , .IND (INV_MULTIPLICAND[26]) , .TWOPOS (INT_MULTIPLIER[32]) , .TWONEG (INT_MULTIPLIER[33]) , .ONEPOS (INT_MULTIPLIER[34]) , .ONENEG (INT_MULTIPLIER[35]) , .PPBIT (SUMMAND[437]) );
PP_MIDDLE PPM_282 (.INA (OPA[26]) , .INB (INV_MULTIPLICAND[26]) , .INC (OPA[27]) , .IND (INV_MULTIPLICAND[27]) , .TWOPOS (INT_MULTIPLIER[32]) , .TWONEG (INT_MULTIPLIER[33]) , .ONEPOS (INT_MULTIPLIER[34]) , .ONENEG (INT_MULTIPLIER[35]) , .PPBIT (SUMMAND[448]) );
PP_MIDDLE PPM_283 (.INA (OPA[27]) , .INB (INV_MULTIPLICAND[27]) , .INC (OPA[28]) , .IND (INV_MULTIPLICAND[28]) , .TWOPOS (INT_MULTIPLIER[32]) , .TWONEG (INT_MULTIPLIER[33]) , .ONEPOS (INT_MULTIPLIER[34]) , .ONENEG (INT_MULTIPLIER[35]) , .PPBIT (SUMMAND[459]) );
PP_MIDDLE PPM_284 (.INA (OPA[28]) , .INB (INV_MULTIPLICAND[28]) , .INC (OPA[29]) , .IND (INV_MULTIPLICAND[29]) , .TWOPOS (INT_MULTIPLIER[32]) , .TWONEG (INT_MULTIPLIER[33]) , .ONEPOS (INT_MULTIPLIER[34]) , .ONENEG (INT_MULTIPLIER[35]) , .PPBIT (SUMMAND[469]) );
PP_MIDDLE PPM_285 (.INA (OPA[29]) , .INB (INV_MULTIPLICAND[29]) , .INC (OPA[30]) , .IND (INV_MULTIPLICAND[30]) , .TWOPOS (INT_MULTIPLIER[32]) , .TWONEG (INT_MULTIPLIER[33]) , .ONEPOS (INT_MULTIPLIER[34]) , .ONENEG (INT_MULTIPLIER[35]) , .PPBIT (SUMMAND[479]) );
PP_MIDDLE PPM_286 (.INA (OPA[30]) , .INB (INV_MULTIPLICAND[30]) , .INC (OPA[31]) , .IND (INV_MULTIPLICAND[31]) , .TWOPOS (INT_MULTIPLIER[32]) , .TWONEG (INT_MULTIPLIER[33]) , .ONEPOS (INT_MULTIPLIER[34]) , .ONENEG (INT_MULTIPLIER[35]) , .PPBIT (SUMMAND[488]) );
PP_MIDDLE PPM_287 (.INA (OPA[31]) , .INB (INV_MULTIPLICAND[31]) , .INC (OPA[32]) , .IND (INV_MULTIPLICAND[32]) , .TWOPOS (INT_MULTIPLIER[32]) , .TWONEG (INT_MULTIPLIER[33]) , .ONEPOS (INT_MULTIPLIER[34]) , .ONENEG (INT_MULTIPLIER[35]) , .PPBIT (SUMMAND[496]) );
assign SUMMAND[497] = LOGIC_ONE;
PP_HIGH PPH_8 (.INA (OPA[32]) , .INB (INV_MULTIPLICAND[32]) , .TWOPOS (INT_MULTIPLIER[32]) , .TWONEG (INT_MULTIPLIER[33]) , .ONEPOS (INT_MULTIPLIER[34]) , .ONENEG (INT_MULTIPLIER[35]) , .PPBIT (SUMMAND[505]) );
DECODER DEC_9 (.INA (OPB[17]) , .INB (OPB[18]) , .INC (OPB[19]) , .TWOPOS (INT_MULTIPLIER[36]) , .TWONEG (INT_MULTIPLIER[37]) , .ONEPOS (INT_MULTIPLIER[38]) , .ONENEG (INT_MULTIPLIER[39]) );
PP_LOW PPL_9 (.INA (OPA[0]) , .INB (INV_MULTIPLICAND[0]) , .TWONEG (INT_MULTIPLIER[37]) , .ONEPOS (INT_MULTIPLIER[38]) , .ONENEG (INT_MULTIPLIER[39]) , .PPBIT (SUMMAND[108]) );
R_GATE RGATE_9 (.INA (OPB[17]) , .INB (OPB[18]) , .INC (OPB[19]) , .PPBIT (SUMMAND[109]) );
PP_MIDDLE PPM_288 (.INA (OPA[0]) , .INB (INV_MULTIPLICAND[0]) , .INC (OPA[1]) , .IND (INV_MULTIPLICAND[1]) , .TWOPOS (INT_MULTIPLIER[36]) , .TWONEG (INT_MULTIPLIER[37]) , .ONEPOS (INT_MULTIPLIER[38]) , .ONENEG (INT_MULTIPLIER[39]) , .PPBIT (SUMMAND[119]) );
PP_MIDDLE PPM_289 (.INA (OPA[1]) , .INB (INV_MULTIPLICAND[1]) , .INC (OPA[2]) , .IND (INV_MULTIPLICAND[2]) , .TWOPOS (INT_MULTIPLIER[36]) , .TWONEG (INT_MULTIPLIER[37]) , .ONEPOS (INT_MULTIPLIER[38]) , .ONENEG (INT_MULTIPLIER[39]) , .PPBIT (SUMMAND[129]) );
PP_MIDDLE PPM_290 (.INA (OPA[2]) , .INB (INV_MULTIPLICAND[2]) , .INC (OPA[3]) , .IND (INV_MULTIPLICAND[3]) , .TWOPOS (INT_MULTIPLIER[36]) , .TWONEG (INT_MULTIPLIER[37]) , .ONEPOS (INT_MULTIPLIER[38]) , .ONENEG (INT_MULTIPLIER[39]) , .PPBIT (SUMMAND[141]) );
PP_MIDDLE PPM_291 (.INA (OPA[3]) , .INB (INV_MULTIPLICAND[3]) , .INC (OPA[4]) , .IND (INV_MULTIPLICAND[4]) , .TWOPOS (INT_MULTIPLIER[36]) , .TWONEG (INT_MULTIPLIER[37]) , .ONEPOS (INT_MULTIPLIER[38]) , .ONENEG (INT_MULTIPLIER[39]) , .PPBIT (SUMMAND[152]) );
PP_MIDDLE PPM_292 (.INA (OPA[4]) , .INB (INV_MULTIPLICAND[4]) , .INC (OPA[5]) , .IND (INV_MULTIPLICAND[5]) , .TWOPOS (INT_MULTIPLIER[36]) , .TWONEG (INT_MULTIPLIER[37]) , .ONEPOS (INT_MULTIPLIER[38]) , .ONENEG (INT_MULTIPLIER[39]) , .PPBIT (SUMMAND[165]) );
PP_MIDDLE PPM_293 (.INA (OPA[5]) , .INB (INV_MULTIPLICAND[5]) , .INC (OPA[6]) , .IND (INV_MULTIPLICAND[6]) , .TWOPOS (INT_MULTIPLIER[36]) , .TWONEG (INT_MULTIPLIER[37]) , .ONEPOS (INT_MULTIPLIER[38]) , .ONENEG (INT_MULTIPLIER[39]) , .PPBIT (SUMMAND[177]) );
PP_MIDDLE PPM_294 (.INA (OPA[6]) , .INB (INV_MULTIPLICAND[6]) , .INC (OPA[7]) , .IND (INV_MULTIPLICAND[7]) , .TWOPOS (INT_MULTIPLIER[36]) , .TWONEG (INT_MULTIPLIER[37]) , .ONEPOS (INT_MULTIPLIER[38]) , .ONENEG (INT_MULTIPLIER[39]) , .PPBIT (SUMMAND[191]) );
PP_MIDDLE PPM_295 (.INA (OPA[7]) , .INB (INV_MULTIPLICAND[7]) , .INC (OPA[8]) , .IND (INV_MULTIPLICAND[8]) , .TWOPOS (INT_MULTIPLIER[36]) , .TWONEG (INT_MULTIPLIER[37]) , .ONEPOS (INT_MULTIPLIER[38]) , .ONENEG (INT_MULTIPLIER[39]) , .PPBIT (SUMMAND[204]) );
PP_MIDDLE PPM_296 (.INA (OPA[8]) , .INB (INV_MULTIPLICAND[8]) , .INC (OPA[9]) , .IND (INV_MULTIPLICAND[9]) , .TWOPOS (INT_MULTIPLIER[36]) , .TWONEG (INT_MULTIPLIER[37]) , .ONEPOS (INT_MULTIPLIER[38]) , .ONENEG (INT_MULTIPLIER[39]) , .PPBIT (SUMMAND[219]) );
PP_MIDDLE PPM_297 (.INA (OPA[9]) , .INB (INV_MULTIPLICAND[9]) , .INC (OPA[10]) , .IND (INV_MULTIPLICAND[10]) , .TWOPOS (INT_MULTIPLIER[36]) , .TWONEG (INT_MULTIPLIER[37]) , .ONEPOS (INT_MULTIPLIER[38]) , .ONENEG (INT_MULTIPLIER[39]) , .PPBIT (SUMMAND[233]) );
PP_MIDDLE PPM_298 (.INA (OPA[10]) , .INB (INV_MULTIPLICAND[10]) , .INC (OPA[11]) , .IND (INV_MULTIPLICAND[11]) , .TWOPOS (INT_MULTIPLIER[36]) , .TWONEG (INT_MULTIPLIER[37]) , .ONEPOS (INT_MULTIPLIER[38]) , .ONENEG (INT_MULTIPLIER[39]) , .PPBIT (SUMMAND[249]) );
PP_MIDDLE PPM_299 (.INA (OPA[11]) , .INB (INV_MULTIPLICAND[11]) , .INC (OPA[12]) , .IND (INV_MULTIPLICAND[12]) , .TWOPOS (INT_MULTIPLIER[36]) , .TWONEG (INT_MULTIPLIER[37]) , .ONEPOS (INT_MULTIPLIER[38]) , .ONENEG (INT_MULTIPLIER[39]) , .PPBIT (SUMMAND[264]) );
PP_MIDDLE PPM_300 (.INA (OPA[12]) , .INB (INV_MULTIPLICAND[12]) , .INC (OPA[13]) , .IND (INV_MULTIPLICAND[13]) , .TWOPOS (INT_MULTIPLIER[36]) , .TWONEG (INT_MULTIPLIER[37]) , .ONEPOS (INT_MULTIPLIER[38]) , .ONENEG (INT_MULTIPLIER[39]) , .PPBIT (SUMMAND[281]) );
PP_MIDDLE PPM_301 (.INA (OPA[13]) , .INB (INV_MULTIPLICAND[13]) , .INC (OPA[14]) , .IND (INV_MULTIPLICAND[14]) , .TWOPOS (INT_MULTIPLIER[36]) , .TWONEG (INT_MULTIPLIER[37]) , .ONEPOS (INT_MULTIPLIER[38]) , .ONENEG (INT_MULTIPLIER[39]) , .PPBIT (SUMMAND[297]) );
PP_MIDDLE PPM_302 (.INA (OPA[14]) , .INB (INV_MULTIPLICAND[14]) , .INC (OPA[15]) , .IND (INV_MULTIPLICAND[15]) , .TWOPOS (INT_MULTIPLIER[36]) , .TWONEG (INT_MULTIPLIER[37]) , .ONEPOS (INT_MULTIPLIER[38]) , .ONENEG (INT_MULTIPLIER[39]) , .PPBIT (SUMMAND[314]) );
PP_MIDDLE PPM_303 (.INA (OPA[15]) , .INB (INV_MULTIPLICAND[15]) , .INC (OPA[16]) , .IND (INV_MULTIPLICAND[16]) , .TWOPOS (INT_MULTIPLIER[36]) , .TWONEG (INT_MULTIPLIER[37]) , .ONEPOS (INT_MULTIPLIER[38]) , .ONENEG (INT_MULTIPLIER[39]) , .PPBIT (SUMMAND[330]) );
PP_MIDDLE PPM_304 (.INA (OPA[16]) , .INB (INV_MULTIPLICAND[16]) , .INC (OPA[17]) , .IND (INV_MULTIPLICAND[17]) , .TWOPOS (INT_MULTIPLIER[36]) , .TWONEG (INT_MULTIPLIER[37]) , .ONEPOS (INT_MULTIPLIER[38]) , .ONENEG (INT_MULTIPLIER[39]) , .PPBIT (SUMMAND[345]) );
PP_MIDDLE PPM_305 (.INA (OPA[17]) , .INB (INV_MULTIPLICAND[17]) , .INC (OPA[18]) , .IND (INV_MULTIPLICAND[18]) , .TWOPOS (INT_MULTIPLIER[36]) , .TWONEG (INT_MULTIPLIER[37]) , .ONEPOS (INT_MULTIPLIER[38]) , .ONENEG (INT_MULTIPLIER[39]) , .PPBIT (SUMMAND[360]) );
PP_MIDDLE PPM_306 (.INA (OPA[18]) , .INB (INV_MULTIPLICAND[18]) , .INC (OPA[19]) , .IND (INV_MULTIPLICAND[19]) , .TWOPOS (INT_MULTIPLIER[36]) , .TWONEG (INT_MULTIPLIER[37]) , .ONEPOS (INT_MULTIPLIER[38]) , .ONENEG (INT_MULTIPLIER[39]) , .PPBIT (SUMMAND[374]) );
PP_MIDDLE PPM_307 (.INA (OPA[19]) , .INB (INV_MULTIPLICAND[19]) , .INC (OPA[20]) , .IND (INV_MULTIPLICAND[20]) , .TWOPOS (INT_MULTIPLIER[36]) , .TWONEG (INT_MULTIPLIER[37]) , .ONEPOS (INT_MULTIPLIER[38]) , .ONENEG (INT_MULTIPLIER[39]) , .PPBIT (SUMMAND[388]) );
PP_MIDDLE PPM_308 (.INA (OPA[20]) , .INB (INV_MULTIPLICAND[20]) , .INC (OPA[21]) , .IND (INV_MULTIPLICAND[21]) , .TWOPOS (INT_MULTIPLIER[36]) , .TWONEG (INT_MULTIPLIER[37]) , .ONEPOS (INT_MULTIPLIER[38]) , .ONENEG (INT_MULTIPLIER[39]) , .PPBIT (SUMMAND[401]) );
PP_MIDDLE PPM_309 (.INA (OPA[21]) , .INB (INV_MULTIPLICAND[21]) , .INC (OPA[22]) , .IND (INV_MULTIPLICAND[22]) , .TWOPOS (INT_MULTIPLIER[36]) , .TWONEG (INT_MULTIPLIER[37]) , .ONEPOS (INT_MULTIPLIER[38]) , .ONENEG (INT_MULTIPLIER[39]) , .PPBIT (SUMMAND[414]) );
PP_MIDDLE PPM_310 (.INA (OPA[22]) , .INB (INV_MULTIPLICAND[22]) , .INC (OPA[23]) , .IND (INV_MULTIPLICAND[23]) , .TWOPOS (INT_MULTIPLIER[36]) , .TWONEG (INT_MULTIPLIER[37]) , .ONEPOS (INT_MULTIPLIER[38]) , .ONENEG (INT_MULTIPLIER[39]) , .PPBIT (SUMMAND[426]) );
PP_MIDDLE PPM_311 (.INA (OPA[23]) , .INB (INV_MULTIPLICAND[23]) , .INC (OPA[24]) , .IND (INV_MULTIPLICAND[24]) , .TWOPOS (INT_MULTIPLIER[36]) , .TWONEG (INT_MULTIPLIER[37]) , .ONEPOS (INT_MULTIPLIER[38]) , .ONENEG (INT_MULTIPLIER[39]) , .PPBIT (SUMMAND[438]) );
PP_MIDDLE PPM_312 (.INA (OPA[24]) , .INB (INV_MULTIPLICAND[24]) , .INC (OPA[25]) , .IND (INV_MULTIPLICAND[25]) , .TWOPOS (INT_MULTIPLIER[36]) , .TWONEG (INT_MULTIPLIER[37]) , .ONEPOS (INT_MULTIPLIER[38]) , .ONENEG (INT_MULTIPLIER[39]) , .PPBIT (SUMMAND[449]) );
PP_MIDDLE PPM_313 (.INA (OPA[25]) , .INB (INV_MULTIPLICAND[25]) , .INC (OPA[26]) , .IND (INV_MULTIPLICAND[26]) , .TWOPOS (INT_MULTIPLIER[36]) , .TWONEG (INT_MULTIPLIER[37]) , .ONEPOS (INT_MULTIPLIER[38]) , .ONENEG (INT_MULTIPLIER[39]) , .PPBIT (SUMMAND[460]) );
PP_MIDDLE PPM_314 (.INA (OPA[26]) , .INB (INV_MULTIPLICAND[26]) , .INC (OPA[27]) , .IND (INV_MULTIPLICAND[27]) , .TWOPOS (INT_MULTIPLIER[36]) , .TWONEG (INT_MULTIPLIER[37]) , .ONEPOS (INT_MULTIPLIER[38]) , .ONENEG (INT_MULTIPLIER[39]) , .PPBIT (SUMMAND[470]) );
PP_MIDDLE PPM_315 (.INA (OPA[27]) , .INB (INV_MULTIPLICAND[27]) , .INC (OPA[28]) , .IND (INV_MULTIPLICAND[28]) , .TWOPOS (INT_MULTIPLIER[36]) , .TWONEG (INT_MULTIPLIER[37]) , .ONEPOS (INT_MULTIPLIER[38]) , .ONENEG (INT_MULTIPLIER[39]) , .PPBIT (SUMMAND[480]) );
PP_MIDDLE PPM_316 (.INA (OPA[28]) , .INB (INV_MULTIPLICAND[28]) , .INC (OPA[29]) , .IND (INV_MULTIPLICAND[29]) , .TWOPOS (INT_MULTIPLIER[36]) , .TWONEG (INT_MULTIPLIER[37]) , .ONEPOS (INT_MULTIPLIER[38]) , .ONENEG (INT_MULTIPLIER[39]) , .PPBIT (SUMMAND[489]) );
PP_MIDDLE PPM_317 (.INA (OPA[29]) , .INB (INV_MULTIPLICAND[29]) , .INC (OPA[30]) , .IND (INV_MULTIPLICAND[30]) , .TWOPOS (INT_MULTIPLIER[36]) , .TWONEG (INT_MULTIPLIER[37]) , .ONEPOS (INT_MULTIPLIER[38]) , .ONENEG (INT_MULTIPLIER[39]) , .PPBIT (SUMMAND[498]) );
PP_MIDDLE PPM_318 (.INA (OPA[30]) , .INB (INV_MULTIPLICAND[30]) , .INC (OPA[31]) , .IND (INV_MULTIPLICAND[31]) , .TWOPOS (INT_MULTIPLIER[36]) , .TWONEG (INT_MULTIPLIER[37]) , .ONEPOS (INT_MULTIPLIER[38]) , .ONENEG (INT_MULTIPLIER[39]) , .PPBIT (SUMMAND[506]) );
PP_MIDDLE PPM_319 (.INA (OPA[31]) , .INB (INV_MULTIPLICAND[31]) , .INC (OPA[32]) , .IND (INV_MULTIPLICAND[32]) , .TWOPOS (INT_MULTIPLIER[36]) , .TWONEG (INT_MULTIPLIER[37]) , .ONEPOS (INT_MULTIPLIER[38]) , .ONENEG (INT_MULTIPLIER[39]) , .PPBIT (SUMMAND[513]) );
assign SUMMAND[514] = LOGIC_ONE;
PP_HIGH PPH_9 (.INA (OPA[32]) , .INB (INV_MULTIPLICAND[32]) , .TWOPOS (INT_MULTIPLIER[36]) , .TWONEG (INT_MULTIPLIER[37]) , .ONEPOS (INT_MULTIPLIER[38]) , .ONENEG (INT_MULTIPLIER[39]) , .PPBIT (SUMMAND[521]) );
DECODER DEC_10 (.INA (OPB[19]) , .INB (OPB[20]) , .INC (OPB[21]) , .TWOPOS (INT_MULTIPLIER[40]) , .TWONEG (INT_MULTIPLIER[41]) , .ONEPOS (INT_MULTIPLIER[42]) , .ONENEG (INT_MULTIPLIER[43]) );
PP_LOW PPL_10 (.INA (OPA[0]) , .INB (INV_MULTIPLICAND[0]) , .TWONEG (INT_MULTIPLIER[41]) , .ONEPOS (INT_MULTIPLIER[42]) , .ONENEG (INT_MULTIPLIER[43]) , .PPBIT (SUMMAND[130]) );
R_GATE RGATE_10 (.INA (OPB[19]) , .INB (OPB[20]) , .INC (OPB[21]) , .PPBIT (SUMMAND[131]) );
PP_MIDDLE PPM_320 (.INA (OPA[0]) , .INB (INV_MULTIPLICAND[0]) , .INC (OPA[1]) , .IND (INV_MULTIPLICAND[1]) , .TWOPOS (INT_MULTIPLIER[40]) , .TWONEG (INT_MULTIPLIER[41]) , .ONEPOS (INT_MULTIPLIER[42]) , .ONENEG (INT_MULTIPLIER[43]) , .PPBIT (SUMMAND[142]) );
PP_MIDDLE PPM_321 (.INA (OPA[1]) , .INB (INV_MULTIPLICAND[1]) , .INC (OPA[2]) , .IND (INV_MULTIPLICAND[2]) , .TWOPOS (INT_MULTIPLIER[40]) , .TWONEG (INT_MULTIPLIER[41]) , .ONEPOS (INT_MULTIPLIER[42]) , .ONENEG (INT_MULTIPLIER[43]) , .PPBIT (SUMMAND[153]) );
PP_MIDDLE PPM_322 (.INA (OPA[2]) , .INB (INV_MULTIPLICAND[2]) , .INC (OPA[3]) , .IND (INV_MULTIPLICAND[3]) , .TWOPOS (INT_MULTIPLIER[40]) , .TWONEG (INT_MULTIPLIER[41]) , .ONEPOS (INT_MULTIPLIER[42]) , .ONENEG (INT_MULTIPLIER[43]) , .PPBIT (SUMMAND[166]) );
PP_MIDDLE PPM_323 (.INA (OPA[3]) , .INB (INV_MULTIPLICAND[3]) , .INC (OPA[4]) , .IND (INV_MULTIPLICAND[4]) , .TWOPOS (INT_MULTIPLIER[40]) , .TWONEG (INT_MULTIPLIER[41]) , .ONEPOS (INT_MULTIPLIER[42]) , .ONENEG (INT_MULTIPLIER[43]) , .PPBIT (SUMMAND[178]) );
PP_MIDDLE PPM_324 (.INA (OPA[4]) , .INB (INV_MULTIPLICAND[4]) , .INC (OPA[5]) , .IND (INV_MULTIPLICAND[5]) , .TWOPOS (INT_MULTIPLIER[40]) , .TWONEG (INT_MULTIPLIER[41]) , .ONEPOS (INT_MULTIPLIER[42]) , .ONENEG (INT_MULTIPLIER[43]) , .PPBIT (SUMMAND[192]) );
PP_MIDDLE PPM_325 (.INA (OPA[5]) , .INB (INV_MULTIPLICAND[5]) , .INC (OPA[6]) , .IND (INV_MULTIPLICAND[6]) , .TWOPOS (INT_MULTIPLIER[40]) , .TWONEG (INT_MULTIPLIER[41]) , .ONEPOS (INT_MULTIPLIER[42]) , .ONENEG (INT_MULTIPLIER[43]) , .PPBIT (SUMMAND[205]) );
PP_MIDDLE PPM_326 (.INA (OPA[6]) , .INB (INV_MULTIPLICAND[6]) , .INC (OPA[7]) , .IND (INV_MULTIPLICAND[7]) , .TWOPOS (INT_MULTIPLIER[40]) , .TWONEG (INT_MULTIPLIER[41]) , .ONEPOS (INT_MULTIPLIER[42]) , .ONENEG (INT_MULTIPLIER[43]) , .PPBIT (SUMMAND[220]) );
PP_MIDDLE PPM_327 (.INA (OPA[7]) , .INB (INV_MULTIPLICAND[7]) , .INC (OPA[8]) , .IND (INV_MULTIPLICAND[8]) , .TWOPOS (INT_MULTIPLIER[40]) , .TWONEG (INT_MULTIPLIER[41]) , .ONEPOS (INT_MULTIPLIER[42]) , .ONENEG (INT_MULTIPLIER[43]) , .PPBIT (SUMMAND[234]) );
PP_MIDDLE PPM_328 (.INA (OPA[8]) , .INB (INV_MULTIPLICAND[8]) , .INC (OPA[9]) , .IND (INV_MULTIPLICAND[9]) , .TWOPOS (INT_MULTIPLIER[40]) , .TWONEG (INT_MULTIPLIER[41]) , .ONEPOS (INT_MULTIPLIER[42]) , .ONENEG (INT_MULTIPLIER[43]) , .PPBIT (SUMMAND[250]) );
PP_MIDDLE PPM_329 (.INA (OPA[9]) , .INB (INV_MULTIPLICAND[9]) , .INC (OPA[10]) , .IND (INV_MULTIPLICAND[10]) , .TWOPOS (INT_MULTIPLIER[40]) , .TWONEG (INT_MULTIPLIER[41]) , .ONEPOS (INT_MULTIPLIER[42]) , .ONENEG (INT_MULTIPLIER[43]) , .PPBIT (SUMMAND[265]) );
PP_MIDDLE PPM_330 (.INA (OPA[10]) , .INB (INV_MULTIPLICAND[10]) , .INC (OPA[11]) , .IND (INV_MULTIPLICAND[11]) , .TWOPOS (INT_MULTIPLIER[40]) , .TWONEG (INT_MULTIPLIER[41]) , .ONEPOS (INT_MULTIPLIER[42]) , .ONENEG (INT_MULTIPLIER[43]) , .PPBIT (SUMMAND[282]) );
PP_MIDDLE PPM_331 (.INA (OPA[11]) , .INB (INV_MULTIPLICAND[11]) , .INC (OPA[12]) , .IND (INV_MULTIPLICAND[12]) , .TWOPOS (INT_MULTIPLIER[40]) , .TWONEG (INT_MULTIPLIER[41]) , .ONEPOS (INT_MULTIPLIER[42]) , .ONENEG (INT_MULTIPLIER[43]) , .PPBIT (SUMMAND[298]) );
PP_MIDDLE PPM_332 (.INA (OPA[12]) , .INB (INV_MULTIPLICAND[12]) , .INC (OPA[13]) , .IND (INV_MULTIPLICAND[13]) , .TWOPOS (INT_MULTIPLIER[40]) , .TWONEG (INT_MULTIPLIER[41]) , .ONEPOS (INT_MULTIPLIER[42]) , .ONENEG (INT_MULTIPLIER[43]) , .PPBIT (SUMMAND[315]) );
PP_MIDDLE PPM_333 (.INA (OPA[13]) , .INB (INV_MULTIPLICAND[13]) , .INC (OPA[14]) , .IND (INV_MULTIPLICAND[14]) , .TWOPOS (INT_MULTIPLIER[40]) , .TWONEG (INT_MULTIPLIER[41]) , .ONEPOS (INT_MULTIPLIER[42]) , .ONENEG (INT_MULTIPLIER[43]) , .PPBIT (SUMMAND[331]) );
PP_MIDDLE PPM_334 (.INA (OPA[14]) , .INB (INV_MULTIPLICAND[14]) , .INC (OPA[15]) , .IND (INV_MULTIPLICAND[15]) , .TWOPOS (INT_MULTIPLIER[40]) , .TWONEG (INT_MULTIPLIER[41]) , .ONEPOS (INT_MULTIPLIER[42]) , .ONENEG (INT_MULTIPLIER[43]) , .PPBIT (SUMMAND[346]) );
PP_MIDDLE PPM_335 (.INA (OPA[15]) , .INB (INV_MULTIPLICAND[15]) , .INC (OPA[16]) , .IND (INV_MULTIPLICAND[16]) , .TWOPOS (INT_MULTIPLIER[40]) , .TWONEG (INT_MULTIPLIER[41]) , .ONEPOS (INT_MULTIPLIER[42]) , .ONENEG (INT_MULTIPLIER[43]) , .PPBIT (SUMMAND[361]) );
PP_MIDDLE PPM_336 (.INA (OPA[16]) , .INB (INV_MULTIPLICAND[16]) , .INC (OPA[17]) , .IND (INV_MULTIPLICAND[17]) , .TWOPOS (INT_MULTIPLIER[40]) , .TWONEG (INT_MULTIPLIER[41]) , .ONEPOS (INT_MULTIPLIER[42]) , .ONENEG (INT_MULTIPLIER[43]) , .PPBIT (SUMMAND[375]) );
PP_MIDDLE PPM_337 (.INA (OPA[17]) , .INB (INV_MULTIPLICAND[17]) , .INC (OPA[18]) , .IND (INV_MULTIPLICAND[18]) , .TWOPOS (INT_MULTIPLIER[40]) , .TWONEG (INT_MULTIPLIER[41]) , .ONEPOS (INT_MULTIPLIER[42]) , .ONENEG (INT_MULTIPLIER[43]) , .PPBIT (SUMMAND[389]) );
PP_MIDDLE PPM_338 (.INA (OPA[18]) , .INB (INV_MULTIPLICAND[18]) , .INC (OPA[19]) , .IND (INV_MULTIPLICAND[19]) , .TWOPOS (INT_MULTIPLIER[40]) , .TWONEG (INT_MULTIPLIER[41]) , .ONEPOS (INT_MULTIPLIER[42]) , .ONENEG (INT_MULTIPLIER[43]) , .PPBIT (SUMMAND[402]) );
PP_MIDDLE PPM_339 (.INA (OPA[19]) , .INB (INV_MULTIPLICAND[19]) , .INC (OPA[20]) , .IND (INV_MULTIPLICAND[20]) , .TWOPOS (INT_MULTIPLIER[40]) , .TWONEG (INT_MULTIPLIER[41]) , .ONEPOS (INT_MULTIPLIER[42]) , .ONENEG (INT_MULTIPLIER[43]) , .PPBIT (SUMMAND[415]) );
PP_MIDDLE PPM_340 (.INA (OPA[20]) , .INB (INV_MULTIPLICAND[20]) , .INC (OPA[21]) , .IND (INV_MULTIPLICAND[21]) , .TWOPOS (INT_MULTIPLIER[40]) , .TWONEG (INT_MULTIPLIER[41]) , .ONEPOS (INT_MULTIPLIER[42]) , .ONENEG (INT_MULTIPLIER[43]) , .PPBIT (SUMMAND[427]) );
PP_MIDDLE PPM_341 (.INA (OPA[21]) , .INB (INV_MULTIPLICAND[21]) , .INC (OPA[22]) , .IND (INV_MULTIPLICAND[22]) , .TWOPOS (INT_MULTIPLIER[40]) , .TWONEG (INT_MULTIPLIER[41]) , .ONEPOS (INT_MULTIPLIER[42]) , .ONENEG (INT_MULTIPLIER[43]) , .PPBIT (SUMMAND[439]) );
PP_MIDDLE PPM_342 (.INA (OPA[22]) , .INB (INV_MULTIPLICAND[22]) , .INC (OPA[23]) , .IND (INV_MULTIPLICAND[23]) , .TWOPOS (INT_MULTIPLIER[40]) , .TWONEG (INT_MULTIPLIER[41]) , .ONEPOS (INT_MULTIPLIER[42]) , .ONENEG (INT_MULTIPLIER[43]) , .PPBIT (SUMMAND[450]) );
PP_MIDDLE PPM_343 (.INA (OPA[23]) , .INB (INV_MULTIPLICAND[23]) , .INC (OPA[24]) , .IND (INV_MULTIPLICAND[24]) , .TWOPOS (INT_MULTIPLIER[40]) , .TWONEG (INT_MULTIPLIER[41]) , .ONEPOS (INT_MULTIPLIER[42]) , .ONENEG (INT_MULTIPLIER[43]) , .PPBIT (SUMMAND[461]) );
PP_MIDDLE PPM_344 (.INA (OPA[24]) , .INB (INV_MULTIPLICAND[24]) , .INC (OPA[25]) , .IND (INV_MULTIPLICAND[25]) , .TWOPOS (INT_MULTIPLIER[40]) , .TWONEG (INT_MULTIPLIER[41]) , .ONEPOS (INT_MULTIPLIER[42]) , .ONENEG (INT_MULTIPLIER[43]) , .PPBIT (SUMMAND[471]) );
PP_MIDDLE PPM_345 (.INA (OPA[25]) , .INB (INV_MULTIPLICAND[25]) , .INC (OPA[26]) , .IND (INV_MULTIPLICAND[26]) , .TWOPOS (INT_MULTIPLIER[40]) , .TWONEG (INT_MULTIPLIER[41]) , .ONEPOS (INT_MULTIPLIER[42]) , .ONENEG (INT_MULTIPLIER[43]) , .PPBIT (SUMMAND[481]) );
PP_MIDDLE PPM_346 (.INA (OPA[26]) , .INB (INV_MULTIPLICAND[26]) , .INC (OPA[27]) , .IND (INV_MULTIPLICAND[27]) , .TWOPOS (INT_MULTIPLIER[40]) , .TWONEG (INT_MULTIPLIER[41]) , .ONEPOS (INT_MULTIPLIER[42]) , .ONENEG (INT_MULTIPLIER[43]) , .PPBIT (SUMMAND[490]) );
PP_MIDDLE PPM_347 (.INA (OPA[27]) , .INB (INV_MULTIPLICAND[27]) , .INC (OPA[28]) , .IND (INV_MULTIPLICAND[28]) , .TWOPOS (INT_MULTIPLIER[40]) , .TWONEG (INT_MULTIPLIER[41]) , .ONEPOS (INT_MULTIPLIER[42]) , .ONENEG (INT_MULTIPLIER[43]) , .PPBIT (SUMMAND[499]) );
PP_MIDDLE PPM_348 (.INA (OPA[28]) , .INB (INV_MULTIPLICAND[28]) , .INC (OPA[29]) , .IND (INV_MULTIPLICAND[29]) , .TWOPOS (INT_MULTIPLIER[40]) , .TWONEG (INT_MULTIPLIER[41]) , .ONEPOS (INT_MULTIPLIER[42]) , .ONENEG (INT_MULTIPLIER[43]) , .PPBIT (SUMMAND[507]) );
PP_MIDDLE PPM_349 (.INA (OPA[29]) , .INB (INV_MULTIPLICAND[29]) , .INC (OPA[30]) , .IND (INV_MULTIPLICAND[30]) , .TWOPOS (INT_MULTIPLIER[40]) , .TWONEG (INT_MULTIPLIER[41]) , .ONEPOS (INT_MULTIPLIER[42]) , .ONENEG (INT_MULTIPLIER[43]) , .PPBIT (SUMMAND[515]) );
PP_MIDDLE PPM_350 (.INA (OPA[30]) , .INB (INV_MULTIPLICAND[30]) , .INC (OPA[31]) , .IND (INV_MULTIPLICAND[31]) , .TWOPOS (INT_MULTIPLIER[40]) , .TWONEG (INT_MULTIPLIER[41]) , .ONEPOS (INT_MULTIPLIER[42]) , .ONENEG (INT_MULTIPLIER[43]) , .PPBIT (SUMMAND[522]) );
PP_MIDDLE PPM_351 (.INA (OPA[31]) , .INB (INV_MULTIPLICAND[31]) , .INC (OPA[32]) , .IND (INV_MULTIPLICAND[32]) , .TWOPOS (INT_MULTIPLIER[40]) , .TWONEG (INT_MULTIPLIER[41]) , .ONEPOS (INT_MULTIPLIER[42]) , .ONENEG (INT_MULTIPLIER[43]) , .PPBIT (SUMMAND[528]) );
assign SUMMAND[529] = LOGIC_ONE;
PP_HIGH PPH_10 (.INA (OPA[32]) , .INB (INV_MULTIPLICAND[32]) , .TWOPOS (INT_MULTIPLIER[40]) , .TWONEG (INT_MULTIPLIER[41]) , .ONEPOS (INT_MULTIPLIER[42]) , .ONENEG (INT_MULTIPLIER[43]) , .PPBIT (SUMMAND[535]) );
DECODER DEC_11 (.INA (OPB[21]) , .INB (OPB[22]) , .INC (OPB[23]) , .TWOPOS (INT_MULTIPLIER[44]) , .TWONEG (INT_MULTIPLIER[45]) , .ONEPOS (INT_MULTIPLIER[46]) , .ONENEG (INT_MULTIPLIER[47]) );
PP_LOW PPL_11 (.INA (OPA[0]) , .INB (INV_MULTIPLICAND[0]) , .TWONEG (INT_MULTIPLIER[45]) , .ONEPOS (INT_MULTIPLIER[46]) , .ONENEG (INT_MULTIPLIER[47]) , .PPBIT (SUMMAND[154]) );
R_GATE RGATE_11 (.INA (OPB[21]) , .INB (OPB[22]) , .INC (OPB[23]) , .PPBIT (SUMMAND[155]) );
PP_MIDDLE PPM_352 (.INA (OPA[0]) , .INB (INV_MULTIPLICAND[0]) , .INC (OPA[1]) , .IND (INV_MULTIPLICAND[1]) , .TWOPOS (INT_MULTIPLIER[44]) , .TWONEG (INT_MULTIPLIER[45]) , .ONEPOS (INT_MULTIPLIER[46]) , .ONENEG (INT_MULTIPLIER[47]) , .PPBIT (SUMMAND[167]) );
PP_MIDDLE PPM_353 (.INA (OPA[1]) , .INB (INV_MULTIPLICAND[1]) , .INC (OPA[2]) , .IND (INV_MULTIPLICAND[2]) , .TWOPOS (INT_MULTIPLIER[44]) , .TWONEG (INT_MULTIPLIER[45]) , .ONEPOS (INT_MULTIPLIER[46]) , .ONENEG (INT_MULTIPLIER[47]) , .PPBIT (SUMMAND[179]) );
PP_MIDDLE PPM_354 (.INA (OPA[2]) , .INB (INV_MULTIPLICAND[2]) , .INC (OPA[3]) , .IND (INV_MULTIPLICAND[3]) , .TWOPOS (INT_MULTIPLIER[44]) , .TWONEG (INT_MULTIPLIER[45]) , .ONEPOS (INT_MULTIPLIER[46]) , .ONENEG (INT_MULTIPLIER[47]) , .PPBIT (SUMMAND[193]) );
PP_MIDDLE PPM_355 (.INA (OPA[3]) , .INB (INV_MULTIPLICAND[3]) , .INC (OPA[4]) , .IND (INV_MULTIPLICAND[4]) , .TWOPOS (INT_MULTIPLIER[44]) , .TWONEG (INT_MULTIPLIER[45]) , .ONEPOS (INT_MULTIPLIER[46]) , .ONENEG (INT_MULTIPLIER[47]) , .PPBIT (SUMMAND[206]) );
PP_MIDDLE PPM_356 (.INA (OPA[4]) , .INB (INV_MULTIPLICAND[4]) , .INC (OPA[5]) , .IND (INV_MULTIPLICAND[5]) , .TWOPOS (INT_MULTIPLIER[44]) , .TWONEG (INT_MULTIPLIER[45]) , .ONEPOS (INT_MULTIPLIER[46]) , .ONENEG (INT_MULTIPLIER[47]) , .PPBIT (SUMMAND[221]) );
PP_MIDDLE PPM_357 (.INA (OPA[5]) , .INB (INV_MULTIPLICAND[5]) , .INC (OPA[6]) , .IND (INV_MULTIPLICAND[6]) , .TWOPOS (INT_MULTIPLIER[44]) , .TWONEG (INT_MULTIPLIER[45]) , .ONEPOS (INT_MULTIPLIER[46]) , .ONENEG (INT_MULTIPLIER[47]) , .PPBIT (SUMMAND[235]) );
PP_MIDDLE PPM_358 (.INA (OPA[6]) , .INB (INV_MULTIPLICAND[6]) , .INC (OPA[7]) , .IND (INV_MULTIPLICAND[7]) , .TWOPOS (INT_MULTIPLIER[44]) , .TWONEG (INT_MULTIPLIER[45]) , .ONEPOS (INT_MULTIPLIER[46]) , .ONENEG (INT_MULTIPLIER[47]) , .PPBIT (SUMMAND[251]) );
PP_MIDDLE PPM_359 (.INA (OPA[7]) , .INB (INV_MULTIPLICAND[7]) , .INC (OPA[8]) , .IND (INV_MULTIPLICAND[8]) , .TWOPOS (INT_MULTIPLIER[44]) , .TWONEG (INT_MULTIPLIER[45]) , .ONEPOS (INT_MULTIPLIER[46]) , .ONENEG (INT_MULTIPLIER[47]) , .PPBIT (SUMMAND[266]) );
PP_MIDDLE PPM_360 (.INA (OPA[8]) , .INB (INV_MULTIPLICAND[8]) , .INC (OPA[9]) , .IND (INV_MULTIPLICAND[9]) , .TWOPOS (INT_MULTIPLIER[44]) , .TWONEG (INT_MULTIPLIER[45]) , .ONEPOS (INT_MULTIPLIER[46]) , .ONENEG (INT_MULTIPLIER[47]) , .PPBIT (SUMMAND[283]) );
PP_MIDDLE PPM_361 (.INA (OPA[9]) , .INB (INV_MULTIPLICAND[9]) , .INC (OPA[10]) , .IND (INV_MULTIPLICAND[10]) , .TWOPOS (INT_MULTIPLIER[44]) , .TWONEG (INT_MULTIPLIER[45]) , .ONEPOS (INT_MULTIPLIER[46]) , .ONENEG (INT_MULTIPLIER[47]) , .PPBIT (SUMMAND[299]) );
PP_MIDDLE PPM_362 (.INA (OPA[10]) , .INB (INV_MULTIPLICAND[10]) , .INC (OPA[11]) , .IND (INV_MULTIPLICAND[11]) , .TWOPOS (INT_MULTIPLIER[44]) , .TWONEG (INT_MULTIPLIER[45]) , .ONEPOS (INT_MULTIPLIER[46]) , .ONENEG (INT_MULTIPLIER[47]) , .PPBIT (SUMMAND[316]) );
PP_MIDDLE PPM_363 (.INA (OPA[11]) , .INB (INV_MULTIPLICAND[11]) , .INC (OPA[12]) , .IND (INV_MULTIPLICAND[12]) , .TWOPOS (INT_MULTIPLIER[44]) , .TWONEG (INT_MULTIPLIER[45]) , .ONEPOS (INT_MULTIPLIER[46]) , .ONENEG (INT_MULTIPLIER[47]) , .PPBIT (SUMMAND[332]) );
PP_MIDDLE PPM_364 (.INA (OPA[12]) , .INB (INV_MULTIPLICAND[12]) , .INC (OPA[13]) , .IND (INV_MULTIPLICAND[13]) , .TWOPOS (INT_MULTIPLIER[44]) , .TWONEG (INT_MULTIPLIER[45]) , .ONEPOS (INT_MULTIPLIER[46]) , .ONENEG (INT_MULTIPLIER[47]) , .PPBIT (SUMMAND[347]) );
PP_MIDDLE PPM_365 (.INA (OPA[13]) , .INB (INV_MULTIPLICAND[13]) , .INC (OPA[14]) , .IND (INV_MULTIPLICAND[14]) , .TWOPOS (INT_MULTIPLIER[44]) , .TWONEG (INT_MULTIPLIER[45]) , .ONEPOS (INT_MULTIPLIER[46]) , .ONENEG (INT_MULTIPLIER[47]) , .PPBIT (SUMMAND[362]) );
PP_MIDDLE PPM_366 (.INA (OPA[14]) , .INB (INV_MULTIPLICAND[14]) , .INC (OPA[15]) , .IND (INV_MULTIPLICAND[15]) , .TWOPOS (INT_MULTIPLIER[44]) , .TWONEG (INT_MULTIPLIER[45]) , .ONEPOS (INT_MULTIPLIER[46]) , .ONENEG (INT_MULTIPLIER[47]) , .PPBIT (SUMMAND[376]) );
PP_MIDDLE PPM_367 (.INA (OPA[15]) , .INB (INV_MULTIPLICAND[15]) , .INC (OPA[16]) , .IND (INV_MULTIPLICAND[16]) , .TWOPOS (INT_MULTIPLIER[44]) , .TWONEG (INT_MULTIPLIER[45]) , .ONEPOS (INT_MULTIPLIER[46]) , .ONENEG (INT_MULTIPLIER[47]) , .PPBIT (SUMMAND[390]) );
PP_MIDDLE PPM_368 (.INA (OPA[16]) , .INB (INV_MULTIPLICAND[16]) , .INC (OPA[17]) , .IND (INV_MULTIPLICAND[17]) , .TWOPOS (INT_MULTIPLIER[44]) , .TWONEG (INT_MULTIPLIER[45]) , .ONEPOS (INT_MULTIPLIER[46]) , .ONENEG (INT_MULTIPLIER[47]) , .PPBIT (SUMMAND[403]) );
PP_MIDDLE PPM_369 (.INA (OPA[17]) , .INB (INV_MULTIPLICAND[17]) , .INC (OPA[18]) , .IND (INV_MULTIPLICAND[18]) , .TWOPOS (INT_MULTIPLIER[44]) , .TWONEG (INT_MULTIPLIER[45]) , .ONEPOS (INT_MULTIPLIER[46]) , .ONENEG (INT_MULTIPLIER[47]) , .PPBIT (SUMMAND[416]) );
PP_MIDDLE PPM_370 (.INA (OPA[18]) , .INB (INV_MULTIPLICAND[18]) , .INC (OPA[19]) , .IND (INV_MULTIPLICAND[19]) , .TWOPOS (INT_MULTIPLIER[44]) , .TWONEG (INT_MULTIPLIER[45]) , .ONEPOS (INT_MULTIPLIER[46]) , .ONENEG (INT_MULTIPLIER[47]) , .PPBIT (SUMMAND[428]) );
PP_MIDDLE PPM_371 (.INA (OPA[19]) , .INB (INV_MULTIPLICAND[19]) , .INC (OPA[20]) , .IND (INV_MULTIPLICAND[20]) , .TWOPOS (INT_MULTIPLIER[44]) , .TWONEG (INT_MULTIPLIER[45]) , .ONEPOS (INT_MULTIPLIER[46]) , .ONENEG (INT_MULTIPLIER[47]) , .PPBIT (SUMMAND[440]) );
PP_MIDDLE PPM_372 (.INA (OPA[20]) , .INB (INV_MULTIPLICAND[20]) , .INC (OPA[21]) , .IND (INV_MULTIPLICAND[21]) , .TWOPOS (INT_MULTIPLIER[44]) , .TWONEG (INT_MULTIPLIER[45]) , .ONEPOS (INT_MULTIPLIER[46]) , .ONENEG (INT_MULTIPLIER[47]) , .PPBIT (SUMMAND[451]) );
PP_MIDDLE PPM_373 (.INA (OPA[21]) , .INB (INV_MULTIPLICAND[21]) , .INC (OPA[22]) , .IND (INV_MULTIPLICAND[22]) , .TWOPOS (INT_MULTIPLIER[44]) , .TWONEG (INT_MULTIPLIER[45]) , .ONEPOS (INT_MULTIPLIER[46]) , .ONENEG (INT_MULTIPLIER[47]) , .PPBIT (SUMMAND[462]) );
PP_MIDDLE PPM_374 (.INA (OPA[22]) , .INB (INV_MULTIPLICAND[22]) , .INC (OPA[23]) , .IND (INV_MULTIPLICAND[23]) , .TWOPOS (INT_MULTIPLIER[44]) , .TWONEG (INT_MULTIPLIER[45]) , .ONEPOS (INT_MULTIPLIER[46]) , .ONENEG (INT_MULTIPLIER[47]) , .PPBIT (SUMMAND[472]) );
PP_MIDDLE PPM_375 (.INA (OPA[23]) , .INB (INV_MULTIPLICAND[23]) , .INC (OPA[24]) , .IND (INV_MULTIPLICAND[24]) , .TWOPOS (INT_MULTIPLIER[44]) , .TWONEG (INT_MULTIPLIER[45]) , .ONEPOS (INT_MULTIPLIER[46]) , .ONENEG (INT_MULTIPLIER[47]) , .PPBIT (SUMMAND[482]) );
PP_MIDDLE PPM_376 (.INA (OPA[24]) , .INB (INV_MULTIPLICAND[24]) , .INC (OPA[25]) , .IND (INV_MULTIPLICAND[25]) , .TWOPOS (INT_MULTIPLIER[44]) , .TWONEG (INT_MULTIPLIER[45]) , .ONEPOS (INT_MULTIPLIER[46]) , .ONENEG (INT_MULTIPLIER[47]) , .PPBIT (SUMMAND[491]) );
PP_MIDDLE PPM_377 (.INA (OPA[25]) , .INB (INV_MULTIPLICAND[25]) , .INC (OPA[26]) , .IND (INV_MULTIPLICAND[26]) , .TWOPOS (INT_MULTIPLIER[44]) , .TWONEG (INT_MULTIPLIER[45]) , .ONEPOS (INT_MULTIPLIER[46]) , .ONENEG (INT_MULTIPLIER[47]) , .PPBIT (SUMMAND[500]) );
PP_MIDDLE PPM_378 (.INA (OPA[26]) , .INB (INV_MULTIPLICAND[26]) , .INC (OPA[27]) , .IND (INV_MULTIPLICAND[27]) , .TWOPOS (INT_MULTIPLIER[44]) , .TWONEG (INT_MULTIPLIER[45]) , .ONEPOS (INT_MULTIPLIER[46]) , .ONENEG (INT_MULTIPLIER[47]) , .PPBIT (SUMMAND[508]) );
PP_MIDDLE PPM_379 (.INA (OPA[27]) , .INB (INV_MULTIPLICAND[27]) , .INC (OPA[28]) , .IND (INV_MULTIPLICAND[28]) , .TWOPOS (INT_MULTIPLIER[44]) , .TWONEG (INT_MULTIPLIER[45]) , .ONEPOS (INT_MULTIPLIER[46]) , .ONENEG (INT_MULTIPLIER[47]) , .PPBIT (SUMMAND[516]) );
PP_MIDDLE PPM_380 (.INA (OPA[28]) , .INB (INV_MULTIPLICAND[28]) , .INC (OPA[29]) , .IND (INV_MULTIPLICAND[29]) , .TWOPOS (INT_MULTIPLIER[44]) , .TWONEG (INT_MULTIPLIER[45]) , .ONEPOS (INT_MULTIPLIER[46]) , .ONENEG (INT_MULTIPLIER[47]) , .PPBIT (SUMMAND[523]) );
PP_MIDDLE PPM_381 (.INA (OPA[29]) , .INB (INV_MULTIPLICAND[29]) , .INC (OPA[30]) , .IND (INV_MULTIPLICAND[30]) , .TWOPOS (INT_MULTIPLIER[44]) , .TWONEG (INT_MULTIPLIER[45]) , .ONEPOS (INT_MULTIPLIER[46]) , .ONENEG (INT_MULTIPLIER[47]) , .PPBIT (SUMMAND[530]) );
PP_MIDDLE PPM_382 (.INA (OPA[30]) , .INB (INV_MULTIPLICAND[30]) , .INC (OPA[31]) , .IND (INV_MULTIPLICAND[31]) , .TWOPOS (INT_MULTIPLIER[44]) , .TWONEG (INT_MULTIPLIER[45]) , .ONEPOS (INT_MULTIPLIER[46]) , .ONENEG (INT_MULTIPLIER[47]) , .PPBIT (SUMMAND[536]) );
PP_MIDDLE PPM_383 (.INA (OPA[31]) , .INB (INV_MULTIPLICAND[31]) , .INC (OPA[32]) , .IND (INV_MULTIPLICAND[32]) , .TWOPOS (INT_MULTIPLIER[44]) , .TWONEG (INT_MULTIPLIER[45]) , .ONEPOS (INT_MULTIPLIER[46]) , .ONENEG (INT_MULTIPLIER[47]) , .PPBIT (SUMMAND[541]) );
assign SUMMAND[542] = LOGIC_ONE;
PP_HIGH PPH_11 (.INA (OPA[32]) , .INB (INV_MULTIPLICAND[32]) , .TWOPOS (INT_MULTIPLIER[44]) , .TWONEG (INT_MULTIPLIER[45]) , .ONEPOS (INT_MULTIPLIER[46]) , .ONENEG (INT_MULTIPLIER[47]) , .PPBIT (SUMMAND[547]) );
DECODER DEC_12 (.INA (OPB[23]) , .INB (OPB[24]) , .INC (OPB[25]) , .TWOPOS (INT_MULTIPLIER[48]) , .TWONEG (INT_MULTIPLIER[49]) , .ONEPOS (INT_MULTIPLIER[50]) , .ONENEG (INT_MULTIPLIER[51]) );
PP_LOW PPL_12 (.INA (OPA[0]) , .INB (INV_MULTIPLICAND[0]) , .TWONEG (INT_MULTIPLIER[49]) , .ONEPOS (INT_MULTIPLIER[50]) , .ONENEG (INT_MULTIPLIER[51]) , .PPBIT (SUMMAND[180]) );
R_GATE RGATE_12 (.INA (OPB[23]) , .INB (OPB[24]) , .INC (OPB[25]) , .PPBIT (SUMMAND[181]) );
PP_MIDDLE PPM_384 (.INA (OPA[0]) , .INB (INV_MULTIPLICAND[0]) , .INC (OPA[1]) , .IND (INV_MULTIPLICAND[1]) , .TWOPOS (INT_MULTIPLIER[48]) , .TWONEG (INT_MULTIPLIER[49]) , .ONEPOS (INT_MULTIPLIER[50]) , .ONENEG (INT_MULTIPLIER[51]) , .PPBIT (SUMMAND[194]) );
PP_MIDDLE PPM_385 (.INA (OPA[1]) , .INB (INV_MULTIPLICAND[1]) , .INC (OPA[2]) , .IND (INV_MULTIPLICAND[2]) , .TWOPOS (INT_MULTIPLIER[48]) , .TWONEG (INT_MULTIPLIER[49]) , .ONEPOS (INT_MULTIPLIER[50]) , .ONENEG (INT_MULTIPLIER[51]) , .PPBIT (SUMMAND[207]) );
PP_MIDDLE PPM_386 (.INA (OPA[2]) , .INB (INV_MULTIPLICAND[2]) , .INC (OPA[3]) , .IND (INV_MULTIPLICAND[3]) , .TWOPOS (INT_MULTIPLIER[48]) , .TWONEG (INT_MULTIPLIER[49]) , .ONEPOS (INT_MULTIPLIER[50]) , .ONENEG (INT_MULTIPLIER[51]) , .PPBIT (SUMMAND[222]) );
PP_MIDDLE PPM_387 (.INA (OPA[3]) , .INB (INV_MULTIPLICAND[3]) , .INC (OPA[4]) , .IND (INV_MULTIPLICAND[4]) , .TWOPOS (INT_MULTIPLIER[48]) , .TWONEG (INT_MULTIPLIER[49]) , .ONEPOS (INT_MULTIPLIER[50]) , .ONENEG (INT_MULTIPLIER[51]) , .PPBIT (SUMMAND[236]) );
PP_MIDDLE PPM_388 (.INA (OPA[4]) , .INB (INV_MULTIPLICAND[4]) , .INC (OPA[5]) , .IND (INV_MULTIPLICAND[5]) , .TWOPOS (INT_MULTIPLIER[48]) , .TWONEG (INT_MULTIPLIER[49]) , .ONEPOS (INT_MULTIPLIER[50]) , .ONENEG (INT_MULTIPLIER[51]) , .PPBIT (SUMMAND[252]) );
PP_MIDDLE PPM_389 (.INA (OPA[5]) , .INB (INV_MULTIPLICAND[5]) , .INC (OPA[6]) , .IND (INV_MULTIPLICAND[6]) , .TWOPOS (INT_MULTIPLIER[48]) , .TWONEG (INT_MULTIPLIER[49]) , .ONEPOS (INT_MULTIPLIER[50]) , .ONENEG (INT_MULTIPLIER[51]) , .PPBIT (SUMMAND[267]) );
PP_MIDDLE PPM_390 (.INA (OPA[6]) , .INB (INV_MULTIPLICAND[6]) , .INC (OPA[7]) , .IND (INV_MULTIPLICAND[7]) , .TWOPOS (INT_MULTIPLIER[48]) , .TWONEG (INT_MULTIPLIER[49]) , .ONEPOS (INT_MULTIPLIER[50]) , .ONENEG (INT_MULTIPLIER[51]) , .PPBIT (SUMMAND[284]) );
PP_MIDDLE PPM_391 (.INA (OPA[7]) , .INB (INV_MULTIPLICAND[7]) , .INC (OPA[8]) , .IND (INV_MULTIPLICAND[8]) , .TWOPOS (INT_MULTIPLIER[48]) , .TWONEG (INT_MULTIPLIER[49]) , .ONEPOS (INT_MULTIPLIER[50]) , .ONENEG (INT_MULTIPLIER[51]) , .PPBIT (SUMMAND[300]) );
PP_MIDDLE PPM_392 (.INA (OPA[8]) , .INB (INV_MULTIPLICAND[8]) , .INC (OPA[9]) , .IND (INV_MULTIPLICAND[9]) , .TWOPOS (INT_MULTIPLIER[48]) , .TWONEG (INT_MULTIPLIER[49]) , .ONEPOS (INT_MULTIPLIER[50]) , .ONENEG (INT_MULTIPLIER[51]) , .PPBIT (SUMMAND[317]) );
PP_MIDDLE PPM_393 (.INA (OPA[9]) , .INB (INV_MULTIPLICAND[9]) , .INC (OPA[10]) , .IND (INV_MULTIPLICAND[10]) , .TWOPOS (INT_MULTIPLIER[48]) , .TWONEG (INT_MULTIPLIER[49]) , .ONEPOS (INT_MULTIPLIER[50]) , .ONENEG (INT_MULTIPLIER[51]) , .PPBIT (SUMMAND[333]) );
PP_MIDDLE PPM_394 (.INA (OPA[10]) , .INB (INV_MULTIPLICAND[10]) , .INC (OPA[11]) , .IND (INV_MULTIPLICAND[11]) , .TWOPOS (INT_MULTIPLIER[48]) , .TWONEG (INT_MULTIPLIER[49]) , .ONEPOS (INT_MULTIPLIER[50]) , .ONENEG (INT_MULTIPLIER[51]) , .PPBIT (SUMMAND[348]) );
PP_MIDDLE PPM_395 (.INA (OPA[11]) , .INB (INV_MULTIPLICAND[11]) , .INC (OPA[12]) , .IND (INV_MULTIPLICAND[12]) , .TWOPOS (INT_MULTIPLIER[48]) , .TWONEG (INT_MULTIPLIER[49]) , .ONEPOS (INT_MULTIPLIER[50]) , .ONENEG (INT_MULTIPLIER[51]) , .PPBIT (SUMMAND[363]) );
PP_MIDDLE PPM_396 (.INA (OPA[12]) , .INB (INV_MULTIPLICAND[12]) , .INC (OPA[13]) , .IND (INV_MULTIPLICAND[13]) , .TWOPOS (INT_MULTIPLIER[48]) , .TWONEG (INT_MULTIPLIER[49]) , .ONEPOS (INT_MULTIPLIER[50]) , .ONENEG (INT_MULTIPLIER[51]) , .PPBIT (SUMMAND[377]) );
PP_MIDDLE PPM_397 (.INA (OPA[13]) , .INB (INV_MULTIPLICAND[13]) , .INC (OPA[14]) , .IND (INV_MULTIPLICAND[14]) , .TWOPOS (INT_MULTIPLIER[48]) , .TWONEG (INT_MULTIPLIER[49]) , .ONEPOS (INT_MULTIPLIER[50]) , .ONENEG (INT_MULTIPLIER[51]) , .PPBIT (SUMMAND[391]) );
PP_MIDDLE PPM_398 (.INA (OPA[14]) , .INB (INV_MULTIPLICAND[14]) , .INC (OPA[15]) , .IND (INV_MULTIPLICAND[15]) , .TWOPOS (INT_MULTIPLIER[48]) , .TWONEG (INT_MULTIPLIER[49]) , .ONEPOS (INT_MULTIPLIER[50]) , .ONENEG (INT_MULTIPLIER[51]) , .PPBIT (SUMMAND[404]) );
PP_MIDDLE PPM_399 (.INA (OPA[15]) , .INB (INV_MULTIPLICAND[15]) , .INC (OPA[16]) , .IND (INV_MULTIPLICAND[16]) , .TWOPOS (INT_MULTIPLIER[48]) , .TWONEG (INT_MULTIPLIER[49]) , .ONEPOS (INT_MULTIPLIER[50]) , .ONENEG (INT_MULTIPLIER[51]) , .PPBIT (SUMMAND[417]) );
PP_MIDDLE PPM_400 (.INA (OPA[16]) , .INB (INV_MULTIPLICAND[16]) , .INC (OPA[17]) , .IND (INV_MULTIPLICAND[17]) , .TWOPOS (INT_MULTIPLIER[48]) , .TWONEG (INT_MULTIPLIER[49]) , .ONEPOS (INT_MULTIPLIER[50]) , .ONENEG (INT_MULTIPLIER[51]) , .PPBIT (SUMMAND[429]) );
PP_MIDDLE PPM_401 (.INA (OPA[17]) , .INB (INV_MULTIPLICAND[17]) , .INC (OPA[18]) , .IND (INV_MULTIPLICAND[18]) , .TWOPOS (INT_MULTIPLIER[48]) , .TWONEG (INT_MULTIPLIER[49]) , .ONEPOS (INT_MULTIPLIER[50]) , .ONENEG (INT_MULTIPLIER[51]) , .PPBIT (SUMMAND[441]) );
PP_MIDDLE PPM_402 (.INA (OPA[18]) , .INB (INV_MULTIPLICAND[18]) , .INC (OPA[19]) , .IND (INV_MULTIPLICAND[19]) , .TWOPOS (INT_MULTIPLIER[48]) , .TWONEG (INT_MULTIPLIER[49]) , .ONEPOS (INT_MULTIPLIER[50]) , .ONENEG (INT_MULTIPLIER[51]) , .PPBIT (SUMMAND[452]) );
PP_MIDDLE PPM_403 (.INA (OPA[19]) , .INB (INV_MULTIPLICAND[19]) , .INC (OPA[20]) , .IND (INV_MULTIPLICAND[20]) , .TWOPOS (INT_MULTIPLIER[48]) , .TWONEG (INT_MULTIPLIER[49]) , .ONEPOS (INT_MULTIPLIER[50]) , .ONENEG (INT_MULTIPLIER[51]) , .PPBIT (SUMMAND[463]) );
PP_MIDDLE PPM_404 (.INA (OPA[20]) , .INB (INV_MULTIPLICAND[20]) , .INC (OPA[21]) , .IND (INV_MULTIPLICAND[21]) , .TWOPOS (INT_MULTIPLIER[48]) , .TWONEG (INT_MULTIPLIER[49]) , .ONEPOS (INT_MULTIPLIER[50]) , .ONENEG (INT_MULTIPLIER[51]) , .PPBIT (SUMMAND[473]) );
PP_MIDDLE PPM_405 (.INA (OPA[21]) , .INB (INV_MULTIPLICAND[21]) , .INC (OPA[22]) , .IND (INV_MULTIPLICAND[22]) , .TWOPOS (INT_MULTIPLIER[48]) , .TWONEG (INT_MULTIPLIER[49]) , .ONEPOS (INT_MULTIPLIER[50]) , .ONENEG (INT_MULTIPLIER[51]) , .PPBIT (SUMMAND[483]) );
PP_MIDDLE PPM_406 (.INA (OPA[22]) , .INB (INV_MULTIPLICAND[22]) , .INC (OPA[23]) , .IND (INV_MULTIPLICAND[23]) , .TWOPOS (INT_MULTIPLIER[48]) , .TWONEG (INT_MULTIPLIER[49]) , .ONEPOS (INT_MULTIPLIER[50]) , .ONENEG (INT_MULTIPLIER[51]) , .PPBIT (SUMMAND[492]) );
PP_MIDDLE PPM_407 (.INA (OPA[23]) , .INB (INV_MULTIPLICAND[23]) , .INC (OPA[24]) , .IND (INV_MULTIPLICAND[24]) , .TWOPOS (INT_MULTIPLIER[48]) , .TWONEG (INT_MULTIPLIER[49]) , .ONEPOS (INT_MULTIPLIER[50]) , .ONENEG (INT_MULTIPLIER[51]) , .PPBIT (SUMMAND[501]) );
PP_MIDDLE PPM_408 (.INA (OPA[24]) , .INB (INV_MULTIPLICAND[24]) , .INC (OPA[25]) , .IND (INV_MULTIPLICAND[25]) , .TWOPOS (INT_MULTIPLIER[48]) , .TWONEG (INT_MULTIPLIER[49]) , .ONEPOS (INT_MULTIPLIER[50]) , .ONENEG (INT_MULTIPLIER[51]) , .PPBIT (SUMMAND[509]) );
PP_MIDDLE PPM_409 (.INA (OPA[25]) , .INB (INV_MULTIPLICAND[25]) , .INC (OPA[26]) , .IND (INV_MULTIPLICAND[26]) , .TWOPOS (INT_MULTIPLIER[48]) , .TWONEG (INT_MULTIPLIER[49]) , .ONEPOS (INT_MULTIPLIER[50]) , .ONENEG (INT_MULTIPLIER[51]) , .PPBIT (SUMMAND[517]) );
PP_MIDDLE PPM_410 (.INA (OPA[26]) , .INB (INV_MULTIPLICAND[26]) , .INC (OPA[27]) , .IND (INV_MULTIPLICAND[27]) , .TWOPOS (INT_MULTIPLIER[48]) , .TWONEG (INT_MULTIPLIER[49]) , .ONEPOS (INT_MULTIPLIER[50]) , .ONENEG (INT_MULTIPLIER[51]) , .PPBIT (SUMMAND[524]) );
PP_MIDDLE PPM_411 (.INA (OPA[27]) , .INB (INV_MULTIPLICAND[27]) , .INC (OPA[28]) , .IND (INV_MULTIPLICAND[28]) , .TWOPOS (INT_MULTIPLIER[48]) , .TWONEG (INT_MULTIPLIER[49]) , .ONEPOS (INT_MULTIPLIER[50]) , .ONENEG (INT_MULTIPLIER[51]) , .PPBIT (SUMMAND[531]) );
PP_MIDDLE PPM_412 (.INA (OPA[28]) , .INB (INV_MULTIPLICAND[28]) , .INC (OPA[29]) , .IND (INV_MULTIPLICAND[29]) , .TWOPOS (INT_MULTIPLIER[48]) , .TWONEG (INT_MULTIPLIER[49]) , .ONEPOS (INT_MULTIPLIER[50]) , .ONENEG (INT_MULTIPLIER[51]) , .PPBIT (SUMMAND[537]) );
PP_MIDDLE PPM_413 (.INA (OPA[29]) , .INB (INV_MULTIPLICAND[29]) , .INC (OPA[30]) , .IND (INV_MULTIPLICAND[30]) , .TWOPOS (INT_MULTIPLIER[48]) , .TWONEG (INT_MULTIPLIER[49]) , .ONEPOS (INT_MULTIPLIER[50]) , .ONENEG (INT_MULTIPLIER[51]) , .PPBIT (SUMMAND[543]) );
PP_MIDDLE PPM_414 (.INA (OPA[30]) , .INB (INV_MULTIPLICAND[30]) , .INC (OPA[31]) , .IND (INV_MULTIPLICAND[31]) , .TWOPOS (INT_MULTIPLIER[48]) , .TWONEG (INT_MULTIPLIER[49]) , .ONEPOS (INT_MULTIPLIER[50]) , .ONENEG (INT_MULTIPLIER[51]) , .PPBIT (SUMMAND[548]) );
PP_MIDDLE PPM_415 (.INA (OPA[31]) , .INB (INV_MULTIPLICAND[31]) , .INC (OPA[32]) , .IND (INV_MULTIPLICAND[32]) , .TWOPOS (INT_MULTIPLIER[48]) , .TWONEG (INT_MULTIPLIER[49]) , .ONEPOS (INT_MULTIPLIER[50]) , .ONENEG (INT_MULTIPLIER[51]) , .PPBIT (SUMMAND[552]) );
assign SUMMAND[553] = LOGIC_ONE;
PP_HIGH PPH_12 (.INA (OPA[32]) , .INB (INV_MULTIPLICAND[32]) , .TWOPOS (INT_MULTIPLIER[48]) , .TWONEG (INT_MULTIPLIER[49]) , .ONEPOS (INT_MULTIPLIER[50]) , .ONENEG (INT_MULTIPLIER[51]) , .PPBIT (SUMMAND[557]) );
DECODER DEC_13 (.INA (OPB[25]) , .INB (OPB[26]) , .INC (OPB[27]) , .TWOPOS (INT_MULTIPLIER[52]) , .TWONEG (INT_MULTIPLIER[53]) , .ONEPOS (INT_MULTIPLIER[54]) , .ONENEG (INT_MULTIPLIER[55]) );
PP_LOW PPL_13 (.INA (OPA[0]) , .INB (INV_MULTIPLICAND[0]) , .TWONEG (INT_MULTIPLIER[53]) , .ONEPOS (INT_MULTIPLIER[54]) , .ONENEG (INT_MULTIPLIER[55]) , .PPBIT (SUMMAND[208]) );
R_GATE RGATE_13 (.INA (OPB[25]) , .INB (OPB[26]) , .INC (OPB[27]) , .PPBIT (SUMMAND[209]) );
PP_MIDDLE PPM_416 (.INA (OPA[0]) , .INB (INV_MULTIPLICAND[0]) , .INC (OPA[1]) , .IND (INV_MULTIPLICAND[1]) , .TWOPOS (INT_MULTIPLIER[52]) , .TWONEG (INT_MULTIPLIER[53]) , .ONEPOS (INT_MULTIPLIER[54]) , .ONENEG (INT_MULTIPLIER[55]) , .PPBIT (SUMMAND[223]) );
PP_MIDDLE PPM_417 (.INA (OPA[1]) , .INB (INV_MULTIPLICAND[1]) , .INC (OPA[2]) , .IND (INV_MULTIPLICAND[2]) , .TWOPOS (INT_MULTIPLIER[52]) , .TWONEG (INT_MULTIPLIER[53]) , .ONEPOS (INT_MULTIPLIER[54]) , .ONENEG (INT_MULTIPLIER[55]) , .PPBIT (SUMMAND[237]) );
PP_MIDDLE PPM_418 (.INA (OPA[2]) , .INB (INV_MULTIPLICAND[2]) , .INC (OPA[3]) , .IND (INV_MULTIPLICAND[3]) , .TWOPOS (INT_MULTIPLIER[52]) , .TWONEG (INT_MULTIPLIER[53]) , .ONEPOS (INT_MULTIPLIER[54]) , .ONENEG (INT_MULTIPLIER[55]) , .PPBIT (SUMMAND[253]) );
PP_MIDDLE PPM_419 (.INA (OPA[3]) , .INB (INV_MULTIPLICAND[3]) , .INC (OPA[4]) , .IND (INV_MULTIPLICAND[4]) , .TWOPOS (INT_MULTIPLIER[52]) , .TWONEG (INT_MULTIPLIER[53]) , .ONEPOS (INT_MULTIPLIER[54]) , .ONENEG (INT_MULTIPLIER[55]) , .PPBIT (SUMMAND[268]) );
PP_MIDDLE PPM_420 (.INA (OPA[4]) , .INB (INV_MULTIPLICAND[4]) , .INC (OPA[5]) , .IND (INV_MULTIPLICAND[5]) , .TWOPOS (INT_MULTIPLIER[52]) , .TWONEG (INT_MULTIPLIER[53]) , .ONEPOS (INT_MULTIPLIER[54]) , .ONENEG (INT_MULTIPLIER[55]) , .PPBIT (SUMMAND[285]) );
PP_MIDDLE PPM_421 (.INA (OPA[5]) , .INB (INV_MULTIPLICAND[5]) , .INC (OPA[6]) , .IND (INV_MULTIPLICAND[6]) , .TWOPOS (INT_MULTIPLIER[52]) , .TWONEG (INT_MULTIPLIER[53]) , .ONEPOS (INT_MULTIPLIER[54]) , .ONENEG (INT_MULTIPLIER[55]) , .PPBIT (SUMMAND[301]) );
PP_MIDDLE PPM_422 (.INA (OPA[6]) , .INB (INV_MULTIPLICAND[6]) , .INC (OPA[7]) , .IND (INV_MULTIPLICAND[7]) , .TWOPOS (INT_MULTIPLIER[52]) , .TWONEG (INT_MULTIPLIER[53]) , .ONEPOS (INT_MULTIPLIER[54]) , .ONENEG (INT_MULTIPLIER[55]) , .PPBIT (SUMMAND[318]) );
PP_MIDDLE PPM_423 (.INA (OPA[7]) , .INB (INV_MULTIPLICAND[7]) , .INC (OPA[8]) , .IND (INV_MULTIPLICAND[8]) , .TWOPOS (INT_MULTIPLIER[52]) , .TWONEG (INT_MULTIPLIER[53]) , .ONEPOS (INT_MULTIPLIER[54]) , .ONENEG (INT_MULTIPLIER[55]) , .PPBIT (SUMMAND[334]) );
PP_MIDDLE PPM_424 (.INA (OPA[8]) , .INB (INV_MULTIPLICAND[8]) , .INC (OPA[9]) , .IND (INV_MULTIPLICAND[9]) , .TWOPOS (INT_MULTIPLIER[52]) , .TWONEG (INT_MULTIPLIER[53]) , .ONEPOS (INT_MULTIPLIER[54]) , .ONENEG (INT_MULTIPLIER[55]) , .PPBIT (SUMMAND[349]) );
PP_MIDDLE PPM_425 (.INA (OPA[9]) , .INB (INV_MULTIPLICAND[9]) , .INC (OPA[10]) , .IND (INV_MULTIPLICAND[10]) , .TWOPOS (INT_MULTIPLIER[52]) , .TWONEG (INT_MULTIPLIER[53]) , .ONEPOS (INT_MULTIPLIER[54]) , .ONENEG (INT_MULTIPLIER[55]) , .PPBIT (SUMMAND[364]) );
PP_MIDDLE PPM_426 (.INA (OPA[10]) , .INB (INV_MULTIPLICAND[10]) , .INC (OPA[11]) , .IND (INV_MULTIPLICAND[11]) , .TWOPOS (INT_MULTIPLIER[52]) , .TWONEG (INT_MULTIPLIER[53]) , .ONEPOS (INT_MULTIPLIER[54]) , .ONENEG (INT_MULTIPLIER[55]) , .PPBIT (SUMMAND[378]) );
PP_MIDDLE PPM_427 (.INA (OPA[11]) , .INB (INV_MULTIPLICAND[11]) , .INC (OPA[12]) , .IND (INV_MULTIPLICAND[12]) , .TWOPOS (INT_MULTIPLIER[52]) , .TWONEG (INT_MULTIPLIER[53]) , .ONEPOS (INT_MULTIPLIER[54]) , .ONENEG (INT_MULTIPLIER[55]) , .PPBIT (SUMMAND[392]) );
PP_MIDDLE PPM_428 (.INA (OPA[12]) , .INB (INV_MULTIPLICAND[12]) , .INC (OPA[13]) , .IND (INV_MULTIPLICAND[13]) , .TWOPOS (INT_MULTIPLIER[52]) , .TWONEG (INT_MULTIPLIER[53]) , .ONEPOS (INT_MULTIPLIER[54]) , .ONENEG (INT_MULTIPLIER[55]) , .PPBIT (SUMMAND[405]) );
PP_MIDDLE PPM_429 (.INA (OPA[13]) , .INB (INV_MULTIPLICAND[13]) , .INC (OPA[14]) , .IND (INV_MULTIPLICAND[14]) , .TWOPOS (INT_MULTIPLIER[52]) , .TWONEG (INT_MULTIPLIER[53]) , .ONEPOS (INT_MULTIPLIER[54]) , .ONENEG (INT_MULTIPLIER[55]) , .PPBIT (SUMMAND[418]) );
PP_MIDDLE PPM_430 (.INA (OPA[14]) , .INB (INV_MULTIPLICAND[14]) , .INC (OPA[15]) , .IND (INV_MULTIPLICAND[15]) , .TWOPOS (INT_MULTIPLIER[52]) , .TWONEG (INT_MULTIPLIER[53]) , .ONEPOS (INT_MULTIPLIER[54]) , .ONENEG (INT_MULTIPLIER[55]) , .PPBIT (SUMMAND[430]) );
PP_MIDDLE PPM_431 (.INA (OPA[15]) , .INB (INV_MULTIPLICAND[15]) , .INC (OPA[16]) , .IND (INV_MULTIPLICAND[16]) , .TWOPOS (INT_MULTIPLIER[52]) , .TWONEG (INT_MULTIPLIER[53]) , .ONEPOS (INT_MULTIPLIER[54]) , .ONENEG (INT_MULTIPLIER[55]) , .PPBIT (SUMMAND[442]) );
PP_MIDDLE PPM_432 (.INA (OPA[16]) , .INB (INV_MULTIPLICAND[16]) , .INC (OPA[17]) , .IND (INV_MULTIPLICAND[17]) , .TWOPOS (INT_MULTIPLIER[52]) , .TWONEG (INT_MULTIPLIER[53]) , .ONEPOS (INT_MULTIPLIER[54]) , .ONENEG (INT_MULTIPLIER[55]) , .PPBIT (SUMMAND[453]) );
PP_MIDDLE PPM_433 (.INA (OPA[17]) , .INB (INV_MULTIPLICAND[17]) , .INC (OPA[18]) , .IND (INV_MULTIPLICAND[18]) , .TWOPOS (INT_MULTIPLIER[52]) , .TWONEG (INT_MULTIPLIER[53]) , .ONEPOS (INT_MULTIPLIER[54]) , .ONENEG (INT_MULTIPLIER[55]) , .PPBIT (SUMMAND[464]) );
PP_MIDDLE PPM_434 (.INA (OPA[18]) , .INB (INV_MULTIPLICAND[18]) , .INC (OPA[19]) , .IND (INV_MULTIPLICAND[19]) , .TWOPOS (INT_MULTIPLIER[52]) , .TWONEG (INT_MULTIPLIER[53]) , .ONEPOS (INT_MULTIPLIER[54]) , .ONENEG (INT_MULTIPLIER[55]) , .PPBIT (SUMMAND[474]) );
PP_MIDDLE PPM_435 (.INA (OPA[19]) , .INB (INV_MULTIPLICAND[19]) , .INC (OPA[20]) , .IND (INV_MULTIPLICAND[20]) , .TWOPOS (INT_MULTIPLIER[52]) , .TWONEG (INT_MULTIPLIER[53]) , .ONEPOS (INT_MULTIPLIER[54]) , .ONENEG (INT_MULTIPLIER[55]) , .PPBIT (SUMMAND[484]) );
PP_MIDDLE PPM_436 (.INA (OPA[20]) , .INB (INV_MULTIPLICAND[20]) , .INC (OPA[21]) , .IND (INV_MULTIPLICAND[21]) , .TWOPOS (INT_MULTIPLIER[52]) , .TWONEG (INT_MULTIPLIER[53]) , .ONEPOS (INT_MULTIPLIER[54]) , .ONENEG (INT_MULTIPLIER[55]) , .PPBIT (SUMMAND[493]) );
PP_MIDDLE PPM_437 (.INA (OPA[21]) , .INB (INV_MULTIPLICAND[21]) , .INC (OPA[22]) , .IND (INV_MULTIPLICAND[22]) , .TWOPOS (INT_MULTIPLIER[52]) , .TWONEG (INT_MULTIPLIER[53]) , .ONEPOS (INT_MULTIPLIER[54]) , .ONENEG (INT_MULTIPLIER[55]) , .PPBIT (SUMMAND[502]) );
PP_MIDDLE PPM_438 (.INA (OPA[22]) , .INB (INV_MULTIPLICAND[22]) , .INC (OPA[23]) , .IND (INV_MULTIPLICAND[23]) , .TWOPOS (INT_MULTIPLIER[52]) , .TWONEG (INT_MULTIPLIER[53]) , .ONEPOS (INT_MULTIPLIER[54]) , .ONENEG (INT_MULTIPLIER[55]) , .PPBIT (SUMMAND[510]) );
PP_MIDDLE PPM_439 (.INA (OPA[23]) , .INB (INV_MULTIPLICAND[23]) , .INC (OPA[24]) , .IND (INV_MULTIPLICAND[24]) , .TWOPOS (INT_MULTIPLIER[52]) , .TWONEG (INT_MULTIPLIER[53]) , .ONEPOS (INT_MULTIPLIER[54]) , .ONENEG (INT_MULTIPLIER[55]) , .PPBIT (SUMMAND[518]) );
PP_MIDDLE PPM_440 (.INA (OPA[24]) , .INB (INV_MULTIPLICAND[24]) , .INC (OPA[25]) , .IND (INV_MULTIPLICAND[25]) , .TWOPOS (INT_MULTIPLIER[52]) , .TWONEG (INT_MULTIPLIER[53]) , .ONEPOS (INT_MULTIPLIER[54]) , .ONENEG (INT_MULTIPLIER[55]) , .PPBIT (SUMMAND[525]) );
PP_MIDDLE PPM_441 (.INA (OPA[25]) , .INB (INV_MULTIPLICAND[25]) , .INC (OPA[26]) , .IND (INV_MULTIPLICAND[26]) , .TWOPOS (INT_MULTIPLIER[52]) , .TWONEG (INT_MULTIPLIER[53]) , .ONEPOS (INT_MULTIPLIER[54]) , .ONENEG (INT_MULTIPLIER[55]) , .PPBIT (SUMMAND[532]) );
PP_MIDDLE PPM_442 (.INA (OPA[26]) , .INB (INV_MULTIPLICAND[26]) , .INC (OPA[27]) , .IND (INV_MULTIPLICAND[27]) , .TWOPOS (INT_MULTIPLIER[52]) , .TWONEG (INT_MULTIPLIER[53]) , .ONEPOS (INT_MULTIPLIER[54]) , .ONENEG (INT_MULTIPLIER[55]) , .PPBIT (SUMMAND[538]) );
PP_MIDDLE PPM_443 (.INA (OPA[27]) , .INB (INV_MULTIPLICAND[27]) , .INC (OPA[28]) , .IND (INV_MULTIPLICAND[28]) , .TWOPOS (INT_MULTIPLIER[52]) , .TWONEG (INT_MULTIPLIER[53]) , .ONEPOS (INT_MULTIPLIER[54]) , .ONENEG (INT_MULTIPLIER[55]) , .PPBIT (SUMMAND[544]) );
PP_MIDDLE PPM_444 (.INA (OPA[28]) , .INB (INV_MULTIPLICAND[28]) , .INC (OPA[29]) , .IND (INV_MULTIPLICAND[29]) , .TWOPOS (INT_MULTIPLIER[52]) , .TWONEG (INT_MULTIPLIER[53]) , .ONEPOS (INT_MULTIPLIER[54]) , .ONENEG (INT_MULTIPLIER[55]) , .PPBIT (SUMMAND[549]) );
PP_MIDDLE PPM_445 (.INA (OPA[29]) , .INB (INV_MULTIPLICAND[29]) , .INC (OPA[30]) , .IND (INV_MULTIPLICAND[30]) , .TWOPOS (INT_MULTIPLIER[52]) , .TWONEG (INT_MULTIPLIER[53]) , .ONEPOS (INT_MULTIPLIER[54]) , .ONENEG (INT_MULTIPLIER[55]) , .PPBIT (SUMMAND[554]) );
PP_MIDDLE PPM_446 (.INA (OPA[30]) , .INB (INV_MULTIPLICAND[30]) , .INC (OPA[31]) , .IND (INV_MULTIPLICAND[31]) , .TWOPOS (INT_MULTIPLIER[52]) , .TWONEG (INT_MULTIPLIER[53]) , .ONEPOS (INT_MULTIPLIER[54]) , .ONENEG (INT_MULTIPLIER[55]) , .PPBIT (SUMMAND[558]) );
PP_MIDDLE PPM_447 (.INA (OPA[31]) , .INB (INV_MULTIPLICAND[31]) , .INC (OPA[32]) , .IND (INV_MULTIPLICAND[32]) , .TWOPOS (INT_MULTIPLIER[52]) , .TWONEG (INT_MULTIPLIER[53]) , .ONEPOS (INT_MULTIPLIER[54]) , .ONENEG (INT_MULTIPLIER[55]) , .PPBIT (SUMMAND[561]) );
assign SUMMAND[562] = LOGIC_ONE;
PP_HIGH PPH_13 (.INA (OPA[32]) , .INB (INV_MULTIPLICAND[32]) , .TWOPOS (INT_MULTIPLIER[52]) , .TWONEG (INT_MULTIPLIER[53]) , .ONEPOS (INT_MULTIPLIER[54]) , .ONENEG (INT_MULTIPLIER[55]) , .PPBIT (SUMMAND[565]) );
DECODER DEC_14 (.INA (OPB[27]) , .INB (OPB[28]) , .INC (OPB[29]) , .TWOPOS (INT_MULTIPLIER[56]) , .TWONEG (INT_MULTIPLIER[57]) , .ONEPOS (INT_MULTIPLIER[58]) , .ONENEG (INT_MULTIPLIER[59]) );
PP_LOW PPL_14 (.INA (OPA[0]) , .INB (INV_MULTIPLICAND[0]) , .TWONEG (INT_MULTIPLIER[57]) , .ONEPOS (INT_MULTIPLIER[58]) , .ONENEG (INT_MULTIPLIER[59]) , .PPBIT (SUMMAND[238]) );
R_GATE RGATE_14 (.INA (OPB[27]) , .INB (OPB[28]) , .INC (OPB[29]) , .PPBIT (SUMMAND[239]) );
PP_MIDDLE PPM_448 (.INA (OPA[0]) , .INB (INV_MULTIPLICAND[0]) , .INC (OPA[1]) , .IND (INV_MULTIPLICAND[1]) , .TWOPOS (INT_MULTIPLIER[56]) , .TWONEG (INT_MULTIPLIER[57]) , .ONEPOS (INT_MULTIPLIER[58]) , .ONENEG (INT_MULTIPLIER[59]) , .PPBIT (SUMMAND[254]) );
PP_MIDDLE PPM_449 (.INA (OPA[1]) , .INB (INV_MULTIPLICAND[1]) , .INC (OPA[2]) , .IND (INV_MULTIPLICAND[2]) , .TWOPOS (INT_MULTIPLIER[56]) , .TWONEG (INT_MULTIPLIER[57]) , .ONEPOS (INT_MULTIPLIER[58]) , .ONENEG (INT_MULTIPLIER[59]) , .PPBIT (SUMMAND[269]) );
PP_MIDDLE PPM_450 (.INA (OPA[2]) , .INB (INV_MULTIPLICAND[2]) , .INC (OPA[3]) , .IND (INV_MULTIPLICAND[3]) , .TWOPOS (INT_MULTIPLIER[56]) , .TWONEG (INT_MULTIPLIER[57]) , .ONEPOS (INT_MULTIPLIER[58]) , .ONENEG (INT_MULTIPLIER[59]) , .PPBIT (SUMMAND[286]) );
PP_MIDDLE PPM_451 (.INA (OPA[3]) , .INB (INV_MULTIPLICAND[3]) , .INC (OPA[4]) , .IND (INV_MULTIPLICAND[4]) , .TWOPOS (INT_MULTIPLIER[56]) , .TWONEG (INT_MULTIPLIER[57]) , .ONEPOS (INT_MULTIPLIER[58]) , .ONENEG (INT_MULTIPLIER[59]) , .PPBIT (SUMMAND[302]) );
PP_MIDDLE PPM_452 (.INA (OPA[4]) , .INB (INV_MULTIPLICAND[4]) , .INC (OPA[5]) , .IND (INV_MULTIPLICAND[5]) , .TWOPOS (INT_MULTIPLIER[56]) , .TWONEG (INT_MULTIPLIER[57]) , .ONEPOS (INT_MULTIPLIER[58]) , .ONENEG (INT_MULTIPLIER[59]) , .PPBIT (SUMMAND[319]) );
PP_MIDDLE PPM_453 (.INA (OPA[5]) , .INB (INV_MULTIPLICAND[5]) , .INC (OPA[6]) , .IND (INV_MULTIPLICAND[6]) , .TWOPOS (INT_MULTIPLIER[56]) , .TWONEG (INT_MULTIPLIER[57]) , .ONEPOS (INT_MULTIPLIER[58]) , .ONENEG (INT_MULTIPLIER[59]) , .PPBIT (SUMMAND[335]) );
PP_MIDDLE PPM_454 (.INA (OPA[6]) , .INB (INV_MULTIPLICAND[6]) , .INC (OPA[7]) , .IND (INV_MULTIPLICAND[7]) , .TWOPOS (INT_MULTIPLIER[56]) , .TWONEG (INT_MULTIPLIER[57]) , .ONEPOS (INT_MULTIPLIER[58]) , .ONENEG (INT_MULTIPLIER[59]) , .PPBIT (SUMMAND[350]) );
PP_MIDDLE PPM_455 (.INA (OPA[7]) , .INB (INV_MULTIPLICAND[7]) , .INC (OPA[8]) , .IND (INV_MULTIPLICAND[8]) , .TWOPOS (INT_MULTIPLIER[56]) , .TWONEG (INT_MULTIPLIER[57]) , .ONEPOS (INT_MULTIPLIER[58]) , .ONENEG (INT_MULTIPLIER[59]) , .PPBIT (SUMMAND[365]) );
PP_MIDDLE PPM_456 (.INA (OPA[8]) , .INB (INV_MULTIPLICAND[8]) , .INC (OPA[9]) , .IND (INV_MULTIPLICAND[9]) , .TWOPOS (INT_MULTIPLIER[56]) , .TWONEG (INT_MULTIPLIER[57]) , .ONEPOS (INT_MULTIPLIER[58]) , .ONENEG (INT_MULTIPLIER[59]) , .PPBIT (SUMMAND[379]) );
PP_MIDDLE PPM_457 (.INA (OPA[9]) , .INB (INV_MULTIPLICAND[9]) , .INC (OPA[10]) , .IND (INV_MULTIPLICAND[10]) , .TWOPOS (INT_MULTIPLIER[56]) , .TWONEG (INT_MULTIPLIER[57]) , .ONEPOS (INT_MULTIPLIER[58]) , .ONENEG (INT_MULTIPLIER[59]) , .PPBIT (SUMMAND[393]) );
PP_MIDDLE PPM_458 (.INA (OPA[10]) , .INB (INV_MULTIPLICAND[10]) , .INC (OPA[11]) , .IND (INV_MULTIPLICAND[11]) , .TWOPOS (INT_MULTIPLIER[56]) , .TWONEG (INT_MULTIPLIER[57]) , .ONEPOS (INT_MULTIPLIER[58]) , .ONENEG (INT_MULTIPLIER[59]) , .PPBIT (SUMMAND[406]) );
PP_MIDDLE PPM_459 (.INA (OPA[11]) , .INB (INV_MULTIPLICAND[11]) , .INC (OPA[12]) , .IND (INV_MULTIPLICAND[12]) , .TWOPOS (INT_MULTIPLIER[56]) , .TWONEG (INT_MULTIPLIER[57]) , .ONEPOS (INT_MULTIPLIER[58]) , .ONENEG (INT_MULTIPLIER[59]) , .PPBIT (SUMMAND[419]) );
PP_MIDDLE PPM_460 (.INA (OPA[12]) , .INB (INV_MULTIPLICAND[12]) , .INC (OPA[13]) , .IND (INV_MULTIPLICAND[13]) , .TWOPOS (INT_MULTIPLIER[56]) , .TWONEG (INT_MULTIPLIER[57]) , .ONEPOS (INT_MULTIPLIER[58]) , .ONENEG (INT_MULTIPLIER[59]) , .PPBIT (SUMMAND[431]) );
PP_MIDDLE PPM_461 (.INA (OPA[13]) , .INB (INV_MULTIPLICAND[13]) , .INC (OPA[14]) , .IND (INV_MULTIPLICAND[14]) , .TWOPOS (INT_MULTIPLIER[56]) , .TWONEG (INT_MULTIPLIER[57]) , .ONEPOS (INT_MULTIPLIER[58]) , .ONENEG (INT_MULTIPLIER[59]) , .PPBIT (SUMMAND[443]) );
PP_MIDDLE PPM_462 (.INA (OPA[14]) , .INB (INV_MULTIPLICAND[14]) , .INC (OPA[15]) , .IND (INV_MULTIPLICAND[15]) , .TWOPOS (INT_MULTIPLIER[56]) , .TWONEG (INT_MULTIPLIER[57]) , .ONEPOS (INT_MULTIPLIER[58]) , .ONENEG (INT_MULTIPLIER[59]) , .PPBIT (SUMMAND[454]) );
PP_MIDDLE PPM_463 (.INA (OPA[15]) , .INB (INV_MULTIPLICAND[15]) , .INC (OPA[16]) , .IND (INV_MULTIPLICAND[16]) , .TWOPOS (INT_MULTIPLIER[56]) , .TWONEG (INT_MULTIPLIER[57]) , .ONEPOS (INT_MULTIPLIER[58]) , .ONENEG (INT_MULTIPLIER[59]) , .PPBIT (SUMMAND[465]) );
PP_MIDDLE PPM_464 (.INA (OPA[16]) , .INB (INV_MULTIPLICAND[16]) , .INC (OPA[17]) , .IND (INV_MULTIPLICAND[17]) , .TWOPOS (INT_MULTIPLIER[56]) , .TWONEG (INT_MULTIPLIER[57]) , .ONEPOS (INT_MULTIPLIER[58]) , .ONENEG (INT_MULTIPLIER[59]) , .PPBIT (SUMMAND[475]) );
PP_MIDDLE PPM_465 (.INA (OPA[17]) , .INB (INV_MULTIPLICAND[17]) , .INC (OPA[18]) , .IND (INV_MULTIPLICAND[18]) , .TWOPOS (INT_MULTIPLIER[56]) , .TWONEG (INT_MULTIPLIER[57]) , .ONEPOS (INT_MULTIPLIER[58]) , .ONENEG (INT_MULTIPLIER[59]) , .PPBIT (SUMMAND[485]) );
PP_MIDDLE PPM_466 (.INA (OPA[18]) , .INB (INV_MULTIPLICAND[18]) , .INC (OPA[19]) , .IND (INV_MULTIPLICAND[19]) , .TWOPOS (INT_MULTIPLIER[56]) , .TWONEG (INT_MULTIPLIER[57]) , .ONEPOS (INT_MULTIPLIER[58]) , .ONENEG (INT_MULTIPLIER[59]) , .PPBIT (SUMMAND[494]) );
PP_MIDDLE PPM_467 (.INA (OPA[19]) , .INB (INV_MULTIPLICAND[19]) , .INC (OPA[20]) , .IND (INV_MULTIPLICAND[20]) , .TWOPOS (INT_MULTIPLIER[56]) , .TWONEG (INT_MULTIPLIER[57]) , .ONEPOS (INT_MULTIPLIER[58]) , .ONENEG (INT_MULTIPLIER[59]) , .PPBIT (SUMMAND[503]) );
PP_MIDDLE PPM_468 (.INA (OPA[20]) , .INB (INV_MULTIPLICAND[20]) , .INC (OPA[21]) , .IND (INV_MULTIPLICAND[21]) , .TWOPOS (INT_MULTIPLIER[56]) , .TWONEG (INT_MULTIPLIER[57]) , .ONEPOS (INT_MULTIPLIER[58]) , .ONENEG (INT_MULTIPLIER[59]) , .PPBIT (SUMMAND[511]) );
PP_MIDDLE PPM_469 (.INA (OPA[21]) , .INB (INV_MULTIPLICAND[21]) , .INC (OPA[22]) , .IND (INV_MULTIPLICAND[22]) , .TWOPOS (INT_MULTIPLIER[56]) , .TWONEG (INT_MULTIPLIER[57]) , .ONEPOS (INT_MULTIPLIER[58]) , .ONENEG (INT_MULTIPLIER[59]) , .PPBIT (SUMMAND[519]) );
PP_MIDDLE PPM_470 (.INA (OPA[22]) , .INB (INV_MULTIPLICAND[22]) , .INC (OPA[23]) , .IND (INV_MULTIPLICAND[23]) , .TWOPOS (INT_MULTIPLIER[56]) , .TWONEG (INT_MULTIPLIER[57]) , .ONEPOS (INT_MULTIPLIER[58]) , .ONENEG (INT_MULTIPLIER[59]) , .PPBIT (SUMMAND[526]) );
PP_MIDDLE PPM_471 (.INA (OPA[23]) , .INB (INV_MULTIPLICAND[23]) , .INC (OPA[24]) , .IND (INV_MULTIPLICAND[24]) , .TWOPOS (INT_MULTIPLIER[56]) , .TWONEG (INT_MULTIPLIER[57]) , .ONEPOS (INT_MULTIPLIER[58]) , .ONENEG (INT_MULTIPLIER[59]) , .PPBIT (SUMMAND[533]) );
PP_MIDDLE PPM_472 (.INA (OPA[24]) , .INB (INV_MULTIPLICAND[24]) , .INC (OPA[25]) , .IND (INV_MULTIPLICAND[25]) , .TWOPOS (INT_MULTIPLIER[56]) , .TWONEG (INT_MULTIPLIER[57]) , .ONEPOS (INT_MULTIPLIER[58]) , .ONENEG (INT_MULTIPLIER[59]) , .PPBIT (SUMMAND[539]) );
PP_MIDDLE PPM_473 (.INA (OPA[25]) , .INB (INV_MULTIPLICAND[25]) , .INC (OPA[26]) , .IND (INV_MULTIPLICAND[26]) , .TWOPOS (INT_MULTIPLIER[56]) , .TWONEG (INT_MULTIPLIER[57]) , .ONEPOS (INT_MULTIPLIER[58]) , .ONENEG (INT_MULTIPLIER[59]) , .PPBIT (SUMMAND[545]) );
PP_MIDDLE PPM_474 (.INA (OPA[26]) , .INB (INV_MULTIPLICAND[26]) , .INC (OPA[27]) , .IND (INV_MULTIPLICAND[27]) , .TWOPOS (INT_MULTIPLIER[56]) , .TWONEG (INT_MULTIPLIER[57]) , .ONEPOS (INT_MULTIPLIER[58]) , .ONENEG (INT_MULTIPLIER[59]) , .PPBIT (SUMMAND[550]) );
PP_MIDDLE PPM_475 (.INA (OPA[27]) , .INB (INV_MULTIPLICAND[27]) , .INC (OPA[28]) , .IND (INV_MULTIPLICAND[28]) , .TWOPOS (INT_MULTIPLIER[56]) , .TWONEG (INT_MULTIPLIER[57]) , .ONEPOS (INT_MULTIPLIER[58]) , .ONENEG (INT_MULTIPLIER[59]) , .PPBIT (SUMMAND[555]) );
PP_MIDDLE PPM_476 (.INA (OPA[28]) , .INB (INV_MULTIPLICAND[28]) , .INC (OPA[29]) , .IND (INV_MULTIPLICAND[29]) , .TWOPOS (INT_MULTIPLIER[56]) , .TWONEG (INT_MULTIPLIER[57]) , .ONEPOS (INT_MULTIPLIER[58]) , .ONENEG (INT_MULTIPLIER[59]) , .PPBIT (SUMMAND[559]) );
PP_MIDDLE PPM_477 (.INA (OPA[29]) , .INB (INV_MULTIPLICAND[29]) , .INC (OPA[30]) , .IND (INV_MULTIPLICAND[30]) , .TWOPOS (INT_MULTIPLIER[56]) , .TWONEG (INT_MULTIPLIER[57]) , .ONEPOS (INT_MULTIPLIER[58]) , .ONENEG (INT_MULTIPLIER[59]) , .PPBIT (SUMMAND[563]) );
PP_MIDDLE PPM_478 (.INA (OPA[30]) , .INB (INV_MULTIPLICAND[30]) , .INC (OPA[31]) , .IND (INV_MULTIPLICAND[31]) , .TWOPOS (INT_MULTIPLIER[56]) , .TWONEG (INT_MULTIPLIER[57]) , .ONEPOS (INT_MULTIPLIER[58]) , .ONENEG (INT_MULTIPLIER[59]) , .PPBIT (SUMMAND[566]) );
PP_MIDDLE PPM_479 (.INA (OPA[31]) , .INB (INV_MULTIPLICAND[31]) , .INC (OPA[32]) , .IND (INV_MULTIPLICAND[32]) , .TWOPOS (INT_MULTIPLIER[56]) , .TWONEG (INT_MULTIPLIER[57]) , .ONEPOS (INT_MULTIPLIER[58]) , .ONENEG (INT_MULTIPLIER[59]) , .PPBIT (SUMMAND[568]) );
assign SUMMAND[569] = LOGIC_ONE;
PP_HIGH PPH_14 (.INA (OPA[32]) , .INB (INV_MULTIPLICAND[32]) , .TWOPOS (INT_MULTIPLIER[56]) , .TWONEG (INT_MULTIPLIER[57]) , .ONEPOS (INT_MULTIPLIER[58]) , .ONENEG (INT_MULTIPLIER[59]) , .PPBIT (SUMMAND[571]) );
DECODER DEC_15 (.INA (OPB[29]) , .INB (OPB[30]) , .INC (OPB[31]) , .TWOPOS (INT_MULTIPLIER[60]) , .TWONEG (INT_MULTIPLIER[61]) , .ONEPOS (INT_MULTIPLIER[62]) , .ONENEG (INT_MULTIPLIER[63]) );
PP_LOW PPL_15 (.INA (OPA[0]) , .INB (INV_MULTIPLICAND[0]) , .TWONEG (INT_MULTIPLIER[61]) , .ONEPOS (INT_MULTIPLIER[62]) , .ONENEG (INT_MULTIPLIER[63]) , .PPBIT (SUMMAND[270]) );
R_GATE RGATE_15 (.INA (OPB[29]) , .INB (OPB[30]) , .INC (OPB[31]) , .PPBIT (SUMMAND[271]) );
PP_MIDDLE PPM_480 (.INA (OPA[0]) , .INB (INV_MULTIPLICAND[0]) , .INC (OPA[1]) , .IND (INV_MULTIPLICAND[1]) , .TWOPOS (INT_MULTIPLIER[60]) , .TWONEG (INT_MULTIPLIER[61]) , .ONEPOS (INT_MULTIPLIER[62]) , .ONENEG (INT_MULTIPLIER[63]) , .PPBIT (SUMMAND[287]) );
PP_MIDDLE PPM_481 (.INA (OPA[1]) , .INB (INV_MULTIPLICAND[1]) , .INC (OPA[2]) , .IND (INV_MULTIPLICAND[2]) , .TWOPOS (INT_MULTIPLIER[60]) , .TWONEG (INT_MULTIPLIER[61]) , .ONEPOS (INT_MULTIPLIER[62]) , .ONENEG (INT_MULTIPLIER[63]) , .PPBIT (SUMMAND[303]) );
PP_MIDDLE PPM_482 (.INA (OPA[2]) , .INB (INV_MULTIPLICAND[2]) , .INC (OPA[3]) , .IND (INV_MULTIPLICAND[3]) , .TWOPOS (INT_MULTIPLIER[60]) , .TWONEG (INT_MULTIPLIER[61]) , .ONEPOS (INT_MULTIPLIER[62]) , .ONENEG (INT_MULTIPLIER[63]) , .PPBIT (SUMMAND[320]) );
PP_MIDDLE PPM_483 (.INA (OPA[3]) , .INB (INV_MULTIPLICAND[3]) , .INC (OPA[4]) , .IND (INV_MULTIPLICAND[4]) , .TWOPOS (INT_MULTIPLIER[60]) , .TWONEG (INT_MULTIPLIER[61]) , .ONEPOS (INT_MULTIPLIER[62]) , .ONENEG (INT_MULTIPLIER[63]) , .PPBIT (SUMMAND[336]) );
PP_MIDDLE PPM_484 (.INA (OPA[4]) , .INB (INV_MULTIPLICAND[4]) , .INC (OPA[5]) , .IND (INV_MULTIPLICAND[5]) , .TWOPOS (INT_MULTIPLIER[60]) , .TWONEG (INT_MULTIPLIER[61]) , .ONEPOS (INT_MULTIPLIER[62]) , .ONENEG (INT_MULTIPLIER[63]) , .PPBIT (SUMMAND[351]) );
PP_MIDDLE PPM_485 (.INA (OPA[5]) , .INB (INV_MULTIPLICAND[5]) , .INC (OPA[6]) , .IND (INV_MULTIPLICAND[6]) , .TWOPOS (INT_MULTIPLIER[60]) , .TWONEG (INT_MULTIPLIER[61]) , .ONEPOS (INT_MULTIPLIER[62]) , .ONENEG (INT_MULTIPLIER[63]) , .PPBIT (SUMMAND[366]) );
PP_MIDDLE PPM_486 (.INA (OPA[6]) , .INB (INV_MULTIPLICAND[6]) , .INC (OPA[7]) , .IND (INV_MULTIPLICAND[7]) , .TWOPOS (INT_MULTIPLIER[60]) , .TWONEG (INT_MULTIPLIER[61]) , .ONEPOS (INT_MULTIPLIER[62]) , .ONENEG (INT_MULTIPLIER[63]) , .PPBIT (SUMMAND[380]) );
PP_MIDDLE PPM_487 (.INA (OPA[7]) , .INB (INV_MULTIPLICAND[7]) , .INC (OPA[8]) , .IND (INV_MULTIPLICAND[8]) , .TWOPOS (INT_MULTIPLIER[60]) , .TWONEG (INT_MULTIPLIER[61]) , .ONEPOS (INT_MULTIPLIER[62]) , .ONENEG (INT_MULTIPLIER[63]) , .PPBIT (SUMMAND[394]) );
PP_MIDDLE PPM_488 (.INA (OPA[8]) , .INB (INV_MULTIPLICAND[8]) , .INC (OPA[9]) , .IND (INV_MULTIPLICAND[9]) , .TWOPOS (INT_MULTIPLIER[60]) , .TWONEG (INT_MULTIPLIER[61]) , .ONEPOS (INT_MULTIPLIER[62]) , .ONENEG (INT_MULTIPLIER[63]) , .PPBIT (SUMMAND[407]) );
PP_MIDDLE PPM_489 (.INA (OPA[9]) , .INB (INV_MULTIPLICAND[9]) , .INC (OPA[10]) , .IND (INV_MULTIPLICAND[10]) , .TWOPOS (INT_MULTIPLIER[60]) , .TWONEG (INT_MULTIPLIER[61]) , .ONEPOS (INT_MULTIPLIER[62]) , .ONENEG (INT_MULTIPLIER[63]) , .PPBIT (SUMMAND[420]) );
PP_MIDDLE PPM_490 (.INA (OPA[10]) , .INB (INV_MULTIPLICAND[10]) , .INC (OPA[11]) , .IND (INV_MULTIPLICAND[11]) , .TWOPOS (INT_MULTIPLIER[60]) , .TWONEG (INT_MULTIPLIER[61]) , .ONEPOS (INT_MULTIPLIER[62]) , .ONENEG (INT_MULTIPLIER[63]) , .PPBIT (SUMMAND[432]) );
PP_MIDDLE PPM_491 (.INA (OPA[11]) , .INB (INV_MULTIPLICAND[11]) , .INC (OPA[12]) , .IND (INV_MULTIPLICAND[12]) , .TWOPOS (INT_MULTIPLIER[60]) , .TWONEG (INT_MULTIPLIER[61]) , .ONEPOS (INT_MULTIPLIER[62]) , .ONENEG (INT_MULTIPLIER[63]) , .PPBIT (SUMMAND[444]) );
PP_MIDDLE PPM_492 (.INA (OPA[12]) , .INB (INV_MULTIPLICAND[12]) , .INC (OPA[13]) , .IND (INV_MULTIPLICAND[13]) , .TWOPOS (INT_MULTIPLIER[60]) , .TWONEG (INT_MULTIPLIER[61]) , .ONEPOS (INT_MULTIPLIER[62]) , .ONENEG (INT_MULTIPLIER[63]) , .PPBIT (SUMMAND[455]) );
PP_MIDDLE PPM_493 (.INA (OPA[13]) , .INB (INV_MULTIPLICAND[13]) , .INC (OPA[14]) , .IND (INV_MULTIPLICAND[14]) , .TWOPOS (INT_MULTIPLIER[60]) , .TWONEG (INT_MULTIPLIER[61]) , .ONEPOS (INT_MULTIPLIER[62]) , .ONENEG (INT_MULTIPLIER[63]) , .PPBIT (SUMMAND[466]) );
PP_MIDDLE PPM_494 (.INA (OPA[14]) , .INB (INV_MULTIPLICAND[14]) , .INC (OPA[15]) , .IND (INV_MULTIPLICAND[15]) , .TWOPOS (INT_MULTIPLIER[60]) , .TWONEG (INT_MULTIPLIER[61]) , .ONEPOS (INT_MULTIPLIER[62]) , .ONENEG (INT_MULTIPLIER[63]) , .PPBIT (SUMMAND[476]) );
PP_MIDDLE PPM_495 (.INA (OPA[15]) , .INB (INV_MULTIPLICAND[15]) , .INC (OPA[16]) , .IND (INV_MULTIPLICAND[16]) , .TWOPOS (INT_MULTIPLIER[60]) , .TWONEG (INT_MULTIPLIER[61]) , .ONEPOS (INT_MULTIPLIER[62]) , .ONENEG (INT_MULTIPLIER[63]) , .PPBIT (SUMMAND[486]) );
PP_MIDDLE PPM_496 (.INA (OPA[16]) , .INB (INV_MULTIPLICAND[16]) , .INC (OPA[17]) , .IND (INV_MULTIPLICAND[17]) , .TWOPOS (INT_MULTIPLIER[60]) , .TWONEG (INT_MULTIPLIER[61]) , .ONEPOS (INT_MULTIPLIER[62]) , .ONENEG (INT_MULTIPLIER[63]) , .PPBIT (SUMMAND[495]) );
PP_MIDDLE PPM_497 (.INA (OPA[17]) , .INB (INV_MULTIPLICAND[17]) , .INC (OPA[18]) , .IND (INV_MULTIPLICAND[18]) , .TWOPOS (INT_MULTIPLIER[60]) , .TWONEG (INT_MULTIPLIER[61]) , .ONEPOS (INT_MULTIPLIER[62]) , .ONENEG (INT_MULTIPLIER[63]) , .PPBIT (SUMMAND[504]) );
PP_MIDDLE PPM_498 (.INA (OPA[18]) , .INB (INV_MULTIPLICAND[18]) , .INC (OPA[19]) , .IND (INV_MULTIPLICAND[19]) , .TWOPOS (INT_MULTIPLIER[60]) , .TWONEG (INT_MULTIPLIER[61]) , .ONEPOS (INT_MULTIPLIER[62]) , .ONENEG (INT_MULTIPLIER[63]) , .PPBIT (SUMMAND[512]) );
PP_MIDDLE PPM_499 (.INA (OPA[19]) , .INB (INV_MULTIPLICAND[19]) , .INC (OPA[20]) , .IND (INV_MULTIPLICAND[20]) , .TWOPOS (INT_MULTIPLIER[60]) , .TWONEG (INT_MULTIPLIER[61]) , .ONEPOS (INT_MULTIPLIER[62]) , .ONENEG (INT_MULTIPLIER[63]) , .PPBIT (SUMMAND[520]) );
PP_MIDDLE PPM_500 (.INA (OPA[20]) , .INB (INV_MULTIPLICAND[20]) , .INC (OPA[21]) , .IND (INV_MULTIPLICAND[21]) , .TWOPOS (INT_MULTIPLIER[60]) , .TWONEG (INT_MULTIPLIER[61]) , .ONEPOS (INT_MULTIPLIER[62]) , .ONENEG (INT_MULTIPLIER[63]) , .PPBIT (SUMMAND[527]) );
PP_MIDDLE PPM_501 (.INA (OPA[21]) , .INB (INV_MULTIPLICAND[21]) , .INC (OPA[22]) , .IND (INV_MULTIPLICAND[22]) , .TWOPOS (INT_MULTIPLIER[60]) , .TWONEG (INT_MULTIPLIER[61]) , .ONEPOS (INT_MULTIPLIER[62]) , .ONENEG (INT_MULTIPLIER[63]) , .PPBIT (SUMMAND[534]) );
PP_MIDDLE PPM_502 (.INA (OPA[22]) , .INB (INV_MULTIPLICAND[22]) , .INC (OPA[23]) , .IND (INV_MULTIPLICAND[23]) , .TWOPOS (INT_MULTIPLIER[60]) , .TWONEG (INT_MULTIPLIER[61]) , .ONEPOS (INT_MULTIPLIER[62]) , .ONENEG (INT_MULTIPLIER[63]) , .PPBIT (SUMMAND[540]) );
PP_MIDDLE PPM_503 (.INA (OPA[23]) , .INB (INV_MULTIPLICAND[23]) , .INC (OPA[24]) , .IND (INV_MULTIPLICAND[24]) , .TWOPOS (INT_MULTIPLIER[60]) , .TWONEG (INT_MULTIPLIER[61]) , .ONEPOS (INT_MULTIPLIER[62]) , .ONENEG (INT_MULTIPLIER[63]) , .PPBIT (SUMMAND[546]) );
PP_MIDDLE PPM_504 (.INA (OPA[24]) , .INB (INV_MULTIPLICAND[24]) , .INC (OPA[25]) , .IND (INV_MULTIPLICAND[25]) , .TWOPOS (INT_MULTIPLIER[60]) , .TWONEG (INT_MULTIPLIER[61]) , .ONEPOS (INT_MULTIPLIER[62]) , .ONENEG (INT_MULTIPLIER[63]) , .PPBIT (SUMMAND[551]) );
PP_MIDDLE PPM_505 (.INA (OPA[25]) , .INB (INV_MULTIPLICAND[25]) , .INC (OPA[26]) , .IND (INV_MULTIPLICAND[26]) , .TWOPOS (INT_MULTIPLIER[60]) , .TWONEG (INT_MULTIPLIER[61]) , .ONEPOS (INT_MULTIPLIER[62]) , .ONENEG (INT_MULTIPLIER[63]) , .PPBIT (SUMMAND[556]) );
PP_MIDDLE PPM_506 (.INA (OPA[26]) , .INB (INV_MULTIPLICAND[26]) , .INC (OPA[27]) , .IND (INV_MULTIPLICAND[27]) , .TWOPOS (INT_MULTIPLIER[60]) , .TWONEG (INT_MULTIPLIER[61]) , .ONEPOS (INT_MULTIPLIER[62]) , .ONENEG (INT_MULTIPLIER[63]) , .PPBIT (SUMMAND[560]) );
PP_MIDDLE PPM_507 (.INA (OPA[27]) , .INB (INV_MULTIPLICAND[27]) , .INC (OPA[28]) , .IND (INV_MULTIPLICAND[28]) , .TWOPOS (INT_MULTIPLIER[60]) , .TWONEG (INT_MULTIPLIER[61]) , .ONEPOS (INT_MULTIPLIER[62]) , .ONENEG (INT_MULTIPLIER[63]) , .PPBIT (SUMMAND[564]) );
PP_MIDDLE PPM_508 (.INA (OPA[28]) , .INB (INV_MULTIPLICAND[28]) , .INC (OPA[29]) , .IND (INV_MULTIPLICAND[29]) , .TWOPOS (INT_MULTIPLIER[60]) , .TWONEG (INT_MULTIPLIER[61]) , .ONEPOS (INT_MULTIPLIER[62]) , .ONENEG (INT_MULTIPLIER[63]) , .PPBIT (SUMMAND[567]) );
PP_MIDDLE PPM_509 (.INA (OPA[29]) , .INB (INV_MULTIPLICAND[29]) , .INC (OPA[30]) , .IND (INV_MULTIPLICAND[30]) , .TWOPOS (INT_MULTIPLIER[60]) , .TWONEG (INT_MULTIPLIER[61]) , .ONEPOS (INT_MULTIPLIER[62]) , .ONENEG (INT_MULTIPLIER[63]) , .PPBIT (SUMMAND[570]) );
PP_MIDDLE PPM_510 (.INA (OPA[30]) , .INB (INV_MULTIPLICAND[30]) , .INC (OPA[31]) , .IND (INV_MULTIPLICAND[31]) , .TWOPOS (INT_MULTIPLIER[60]) , .TWONEG (INT_MULTIPLIER[61]) , .ONEPOS (INT_MULTIPLIER[62]) , .ONENEG (INT_MULTIPLIER[63]) , .PPBIT (SUMMAND[572]) );
PP_MIDDLE PPM_511 (.INA (OPA[31]) , .INB (INV_MULTIPLICAND[31]) , .INC (OPA[32]) , .IND (INV_MULTIPLICAND[32]) , .TWOPOS (INT_MULTIPLIER[60]) , .TWONEG (INT_MULTIPLIER[61]) , .ONEPOS (INT_MULTIPLIER[62]) , .ONENEG (INT_MULTIPLIER[63]) , .PPBIT (SUMMAND[573]) );
assign SUMMAND[574] = LOGIC_ONE;
PP_HIGH PPH_15 (.INA (OPA[32]) , .INB (INV_MULTIPLICAND[32]) , .TWOPOS (INT_MULTIPLIER[60]) , .TWONEG (INT_MULTIPLIER[61]) , .ONEPOS (INT_MULTIPLIER[62]) , .ONENEG (INT_MULTIPLIER[63]) , .PPBIT (SUMMAND[575]) );
endmodule
 
 
module FULL_ADDER ( DATA_A, DATA_B, DATA_C, SAVE, CARRY );
input DATA_A;
input DATA_B;
input DATA_C;
output SAVE;
output CARRY;
wire TMP;
assign TMP = DATA_A ^ DATA_B;
assign SAVE = TMP ^ DATA_C;
assign CARRY = ~ (( ~ (TMP & DATA_C)) & ( ~ (DATA_A & DATA_B)));
endmodule
 
 
module HALF_ADDER ( DATA_A, DATA_B, SAVE, CARRY );
input DATA_A;
input DATA_B;
output SAVE;
output CARRY;
assign SAVE = DATA_A ^ DATA_B;
assign CARRY = DATA_A & DATA_B;
endmodule
 
 
module FLIPFLOP ( DIN, RST, CLK, DOUT );
input DIN;
input RST;
input CLK;
output DOUT;
reg DOUT_reg;
always @ ( posedge RST or posedge CLK ) begin
if (RST)
DOUT_reg <= 1'b0;
else
DOUT_reg <= #1 DIN;
end
assign DOUT = DOUT_reg;
endmodule
 
 
module WALLACE_33_32 ( SUMMAND, RST, CLK, CARRY, SUM );
input [0:575] SUMMAND;
input RST;
input CLK;
output [0:62] CARRY;
output [0:63] SUM;
wire [0:7] LATCHED_PP;
wire [0:523] INT_CARRY;
wire [0:669] INT_SUM;
HALF_ADDER HA_0 (.DATA_A (SUMMAND[0]) , .DATA_B (SUMMAND[1]) , .SAVE (INT_SUM[0]) , .CARRY (INT_CARRY[0]) );
FLIPFLOP LA_0 (.DIN (INT_SUM[0]) , .RST(RST), .CLK (CLK) , .DOUT (SUM[0]) );
FLIPFLOP LA_1 (.DIN (INT_CARRY[0]) , .RST(RST), .CLK (CLK) , .DOUT (CARRY[0]) );
assign INT_SUM[1] = SUMMAND[2];
assign CARRY[1] = 0;
FLIPFLOP LA_2 (.DIN (INT_SUM[1]) , .RST(RST), .CLK (CLK) , .DOUT (SUM[1]) );
FULL_ADDER FA_0 (.DATA_A (SUMMAND[3]) , .DATA_B (SUMMAND[4]) , .DATA_C (SUMMAND[5]) , .SAVE (INT_SUM[2]) , .CARRY (INT_CARRY[1]) );
FLIPFLOP LA_3 (.DIN (INT_SUM[2]) , .RST(RST), .CLK (CLK) , .DOUT (SUM[2]) );
FLIPFLOP LA_4 (.DIN (INT_CARRY[1]) , .RST(RST), .CLK (CLK) , .DOUT (CARRY[2]) );
HALF_ADDER HA_1 (.DATA_A (SUMMAND[6]) , .DATA_B (SUMMAND[7]) , .SAVE (INT_SUM[3]) , .CARRY (INT_CARRY[2]) );
FLIPFLOP LA_5 (.DIN (INT_SUM[3]) , .RST(RST), .CLK (CLK) , .DOUT (SUM[3]) );
FLIPFLOP LA_6 (.DIN (INT_CARRY[2]) , .RST(RST), .CLK (CLK) , .DOUT (CARRY[3]) );
FULL_ADDER FA_1 (.DATA_A (SUMMAND[8]) , .DATA_B (SUMMAND[9]) , .DATA_C (SUMMAND[10]) , .SAVE (INT_SUM[4]) , .CARRY (INT_CARRY[4]) );
assign INT_SUM[5] = SUMMAND[11];
HALF_ADDER HA_2 (.DATA_A (INT_SUM[4]) , .DATA_B (INT_SUM[5]) , .SAVE (INT_SUM[6]) , .CARRY (INT_CARRY[3]) );
FLIPFLOP LA_7 (.DIN (INT_SUM[6]) , .RST(RST), .CLK (CLK) , .DOUT (SUM[4]) );
FLIPFLOP LA_8 (.DIN (INT_CARRY[3]) , .RST(RST), .CLK (CLK) , .DOUT (CARRY[4]) );
FULL_ADDER FA_2 (.DATA_A (SUMMAND[12]) , .DATA_B (SUMMAND[13]) , .DATA_C (SUMMAND[14]) , .SAVE (INT_SUM[7]) , .CARRY (INT_CARRY[6]) );
HALF_ADDER HA_3 (.DATA_A (INT_SUM[7]) , .DATA_B (INT_CARRY[4]) , .SAVE (INT_SUM[8]) , .CARRY (INT_CARRY[5]) );
FLIPFLOP LA_9 (.DIN (INT_SUM[8]) , .RST(RST), .CLK (CLK) , .DOUT (SUM[5]) );
FLIPFLOP LA_10 (.DIN (INT_CARRY[5]) , .RST(RST), .CLK (CLK) , .DOUT (CARRY[5]) );
FULL_ADDER FA_3 (.DATA_A (SUMMAND[15]) , .DATA_B (SUMMAND[16]) , .DATA_C (SUMMAND[17]) , .SAVE (INT_SUM[9]) , .CARRY (INT_CARRY[8]) );
HALF_ADDER HA_4 (.DATA_A (SUMMAND[18]) , .DATA_B (SUMMAND[19]) , .SAVE (INT_SUM[10]) , .CARRY (INT_CARRY[9]) );
FULL_ADDER FA_4 (.DATA_A (INT_SUM[9]) , .DATA_B (INT_SUM[10]) , .DATA_C (INT_CARRY[6]) , .SAVE (INT_SUM[11]) , .CARRY (INT_CARRY[7]) );
FLIPFLOP LA_11 (.DIN (INT_SUM[11]) , .RST(RST), .CLK (CLK) , .DOUT (SUM[6]) );
FLIPFLOP LA_12 (.DIN (INT_CARRY[7]) , .RST(RST), .CLK (CLK) , .DOUT (CARRY[6]) );
FULL_ADDER FA_5 (.DATA_A (SUMMAND[20]) , .DATA_B (SUMMAND[21]) , .DATA_C (SUMMAND[22]) , .SAVE (INT_SUM[12]) , .CARRY (INT_CARRY[11]) );
assign INT_SUM[13] = SUMMAND[23];
FULL_ADDER FA_6 (.DATA_A (INT_SUM[12]) , .DATA_B (INT_SUM[13]) , .DATA_C (INT_CARRY[8]) , .SAVE (INT_SUM[14]) , .CARRY (INT_CARRY[12]) );
assign INT_SUM[15] = INT_CARRY[9];
HALF_ADDER HA_5 (.DATA_A (INT_SUM[14]) , .DATA_B (INT_SUM[15]) , .SAVE (INT_SUM[16]) , .CARRY (INT_CARRY[10]) );
FLIPFLOP LA_13 (.DIN (INT_SUM[16]) , .RST(RST), .CLK (CLK) , .DOUT (SUM[7]) );
FLIPFLOP LA_14 (.DIN (INT_CARRY[10]) , .RST(RST), .CLK (CLK) , .DOUT (CARRY[7]) );
FULL_ADDER FA_7 (.DATA_A (SUMMAND[24]) , .DATA_B (SUMMAND[25]) , .DATA_C (SUMMAND[26]) , .SAVE (INT_SUM[17]) , .CARRY (INT_CARRY[14]) );
FULL_ADDER FA_8 (.DATA_A (SUMMAND[27]) , .DATA_B (SUMMAND[28]) , .DATA_C (SUMMAND[29]) , .SAVE (INT_SUM[18]) , .CARRY (INT_CARRY[15]) );
FULL_ADDER FA_9 (.DATA_A (INT_SUM[17]) , .DATA_B (INT_SUM[18]) , .DATA_C (INT_CARRY[11]) , .SAVE (INT_SUM[19]) , .CARRY (INT_CARRY[16]) );
HALF_ADDER HA_6 (.DATA_A (INT_SUM[19]) , .DATA_B (INT_CARRY[12]) , .SAVE (INT_SUM[20]) , .CARRY (INT_CARRY[13]) );
FLIPFLOP LA_15 (.DIN (INT_SUM[20]) , .RST(RST), .CLK (CLK) , .DOUT (SUM[8]) );
FLIPFLOP LA_16 (.DIN (INT_CARRY[13]) , .RST(RST), .CLK (CLK) , .DOUT (CARRY[8]) );
FULL_ADDER FA_10 (.DATA_A (SUMMAND[30]) , .DATA_B (SUMMAND[31]) , .DATA_C (SUMMAND[32]) , .SAVE (INT_SUM[21]) , .CARRY (INT_CARRY[18]) );
HALF_ADDER HA_7 (.DATA_A (SUMMAND[33]) , .DATA_B (SUMMAND[34]) , .SAVE (INT_SUM[22]) , .CARRY (INT_CARRY[19]) );
FULL_ADDER FA_11 (.DATA_A (INT_SUM[21]) , .DATA_B (INT_SUM[22]) , .DATA_C (INT_CARRY[14]) , .SAVE (INT_SUM[23]) , .CARRY (INT_CARRY[20]) );
assign INT_SUM[24] = INT_CARRY[15];
FULL_ADDER FA_12 (.DATA_A (INT_SUM[23]) , .DATA_B (INT_SUM[24]) , .DATA_C (INT_CARRY[16]) , .SAVE (INT_SUM[25]) , .CARRY (INT_CARRY[17]) );
FLIPFLOP LA_17 (.DIN (INT_SUM[25]) , .RST(RST), .CLK (CLK) , .DOUT (SUM[9]) );
FLIPFLOP LA_18 (.DIN (INT_CARRY[17]) , .RST(RST), .CLK (CLK) , .DOUT (CARRY[9]) );
FULL_ADDER FA_13 (.DATA_A (SUMMAND[35]) , .DATA_B (SUMMAND[36]) , .DATA_C (SUMMAND[37]) , .SAVE (INT_SUM[26]) , .CARRY (INT_CARRY[22]) );
FULL_ADDER FA_14 (.DATA_A (SUMMAND[38]) , .DATA_B (SUMMAND[39]) , .DATA_C (SUMMAND[40]) , .SAVE (INT_SUM[27]) , .CARRY (INT_CARRY[23]) );
assign INT_SUM[28] = SUMMAND[41];
FULL_ADDER FA_15 (.DATA_A (INT_SUM[26]) , .DATA_B (INT_SUM[27]) , .DATA_C (INT_SUM[28]) , .SAVE (INT_SUM[29]) , .CARRY (INT_CARRY[24]) );
HALF_ADDER HA_8 (.DATA_A (INT_CARRY[18]) , .DATA_B (INT_CARRY[19]) , .SAVE (INT_SUM[30]) , .CARRY (INT_CARRY[25]) );
FULL_ADDER FA_16 (.DATA_A (INT_SUM[29]) , .DATA_B (INT_SUM[30]) , .DATA_C (INT_CARRY[20]) , .SAVE (INT_SUM[31]) , .CARRY (INT_CARRY[21]) );
FLIPFLOP LA_19 (.DIN (INT_SUM[31]) , .RST(RST), .CLK (CLK) , .DOUT (SUM[10]) );
FLIPFLOP LA_20 (.DIN (INT_CARRY[21]) , .RST(RST), .CLK (CLK) , .DOUT (CARRY[10]) );
FULL_ADDER FA_17 (.DATA_A (SUMMAND[42]) , .DATA_B (SUMMAND[43]) , .DATA_C (SUMMAND[44]) , .SAVE (INT_SUM[32]) , .CARRY (INT_CARRY[27]) );
FULL_ADDER FA_18 (.DATA_A (SUMMAND[45]) , .DATA_B (SUMMAND[46]) , .DATA_C (SUMMAND[47]) , .SAVE (INT_SUM[33]) , .CARRY (INT_CARRY[28]) );
FULL_ADDER FA_19 (.DATA_A (INT_SUM[32]) , .DATA_B (INT_SUM[33]) , .DATA_C (INT_CARRY[22]) , .SAVE (INT_SUM[34]) , .CARRY (INT_CARRY[29]) );
assign INT_SUM[35] = INT_CARRY[23];
FULL_ADDER FA_20 (.DATA_A (INT_SUM[34]) , .DATA_B (INT_SUM[35]) , .DATA_C (INT_CARRY[24]) , .SAVE (INT_SUM[36]) , .CARRY (INT_CARRY[30]) );
assign INT_SUM[37] = INT_CARRY[25];
HALF_ADDER HA_9 (.DATA_A (INT_SUM[36]) , .DATA_B (INT_SUM[37]) , .SAVE (INT_SUM[38]) , .CARRY (INT_CARRY[26]) );
FLIPFLOP LA_21 (.DIN (INT_SUM[38]) , .RST(RST), .CLK (CLK) , .DOUT (SUM[11]) );
FLIPFLOP LA_22 (.DIN (INT_CARRY[26]) , .RST(RST), .CLK (CLK) , .DOUT (CARRY[11]) );
FULL_ADDER FA_21 (.DATA_A (SUMMAND[48]) , .DATA_B (SUMMAND[49]) , .DATA_C (SUMMAND[50]) , .SAVE (INT_SUM[39]) , .CARRY (INT_CARRY[32]) );
FULL_ADDER FA_22 (.DATA_A (SUMMAND[51]) , .DATA_B (SUMMAND[52]) , .DATA_C (SUMMAND[53]) , .SAVE (INT_SUM[40]) , .CARRY (INT_CARRY[33]) );
assign INT_SUM[41] = SUMMAND[54];
assign INT_SUM[42] = SUMMAND[55];
FULL_ADDER FA_23 (.DATA_A (INT_SUM[39]) , .DATA_B (INT_SUM[40]) , .DATA_C (INT_SUM[41]) , .SAVE (INT_SUM[43]) , .CARRY (INT_CARRY[34]) );
FULL_ADDER FA_24 (.DATA_A (INT_SUM[42]) , .DATA_B (INT_CARRY[27]) , .DATA_C (INT_CARRY[28]) , .SAVE (INT_SUM[44]) , .CARRY (INT_CARRY[35]) );
FULL_ADDER FA_25 (.DATA_A (INT_SUM[43]) , .DATA_B (INT_SUM[44]) , .DATA_C (INT_CARRY[29]) , .SAVE (INT_SUM[45]) , .CARRY (INT_CARRY[36]) );
HALF_ADDER HA_10 (.DATA_A (INT_SUM[45]) , .DATA_B (INT_CARRY[30]) , .SAVE (INT_SUM[46]) , .CARRY (INT_CARRY[31]) );
FLIPFLOP LA_23 (.DIN (INT_SUM[46]) , .RST(RST), .CLK (CLK) , .DOUT (SUM[12]) );
FLIPFLOP LA_24 (.DIN (INT_CARRY[31]) , .RST(RST), .CLK (CLK) , .DOUT (CARRY[12]) );
FULL_ADDER FA_26 (.DATA_A (SUMMAND[56]) , .DATA_B (SUMMAND[57]) , .DATA_C (SUMMAND[58]) , .SAVE (INT_SUM[47]) , .CARRY (INT_CARRY[38]) );
FULL_ADDER FA_27 (.DATA_A (SUMMAND[59]) , .DATA_B (SUMMAND[60]) , .DATA_C (SUMMAND[61]) , .SAVE (INT_SUM[48]) , .CARRY (INT_CARRY[39]) );
assign INT_SUM[49] = SUMMAND[62];
FULL_ADDER FA_28 (.DATA_A (INT_SUM[47]) , .DATA_B (INT_SUM[48]) , .DATA_C (INT_SUM[49]) , .SAVE (INT_SUM[50]) , .CARRY (INT_CARRY[40]) );
HALF_ADDER HA_11 (.DATA_A (INT_CARRY[32]) , .DATA_B (INT_CARRY[33]) , .SAVE (INT_SUM[51]) , .CARRY (INT_CARRY[41]) );
FULL_ADDER FA_29 (.DATA_A (INT_SUM[50]) , .DATA_B (INT_SUM[51]) , .DATA_C (INT_CARRY[34]) , .SAVE (INT_SUM[52]) , .CARRY (INT_CARRY[42]) );
assign INT_SUM[53] = INT_CARRY[35];
FULL_ADDER FA_30 (.DATA_A (INT_SUM[52]) , .DATA_B (INT_SUM[53]) , .DATA_C (INT_CARRY[36]) , .SAVE (INT_SUM[54]) , .CARRY (INT_CARRY[37]) );
FLIPFLOP LA_25 (.DIN (INT_SUM[54]) , .RST(RST), .CLK (CLK) , .DOUT (SUM[13]) );
FLIPFLOP LA_26 (.DIN (INT_CARRY[37]) , .RST(RST), .CLK (CLK) , .DOUT (CARRY[13]) );
FULL_ADDER FA_31 (.DATA_A (SUMMAND[63]) , .DATA_B (SUMMAND[64]) , .DATA_C (SUMMAND[65]) , .SAVE (INT_SUM[55]) , .CARRY (INT_CARRY[44]) );
FULL_ADDER FA_32 (.DATA_A (SUMMAND[66]) , .DATA_B (SUMMAND[67]) , .DATA_C (SUMMAND[68]) , .SAVE (INT_SUM[56]) , .CARRY (INT_CARRY[45]) );
FULL_ADDER FA_33 (.DATA_A (SUMMAND[69]) , .DATA_B (SUMMAND[70]) , .DATA_C (SUMMAND[71]) , .SAVE (INT_SUM[57]) , .CARRY (INT_CARRY[46]) );
FULL_ADDER FA_34 (.DATA_A (INT_SUM[55]) , .DATA_B (INT_SUM[56]) , .DATA_C (INT_SUM[57]) , .SAVE (INT_SUM[58]) , .CARRY (INT_CARRY[47]) );
HALF_ADDER HA_12 (.DATA_A (INT_CARRY[38]) , .DATA_B (INT_CARRY[39]) , .SAVE (INT_SUM[59]) , .CARRY (INT_CARRY[48]) );
FULL_ADDER FA_35 (.DATA_A (INT_SUM[58]) , .DATA_B (INT_SUM[59]) , .DATA_C (INT_CARRY[40]) , .SAVE (INT_SUM[60]) , .CARRY (INT_CARRY[49]) );
assign INT_SUM[61] = INT_CARRY[41];
FULL_ADDER FA_36 (.DATA_A (INT_SUM[60]) , .DATA_B (INT_SUM[61]) , .DATA_C (INT_CARRY[42]) , .SAVE (INT_SUM[62]) , .CARRY (INT_CARRY[43]) );
FLIPFLOP LA_27 (.DIN (INT_SUM[62]) , .RST(RST), .CLK (CLK) , .DOUT (SUM[14]) );
FLIPFLOP LA_28 (.DIN (INT_CARRY[43]) , .RST(RST), .CLK (CLK) , .DOUT (CARRY[14]) );
FULL_ADDER FA_37 (.DATA_A (SUMMAND[72]) , .DATA_B (SUMMAND[73]) , .DATA_C (SUMMAND[74]) , .SAVE (INT_SUM[63]) , .CARRY (INT_CARRY[51]) );
FULL_ADDER FA_38 (.DATA_A (SUMMAND[75]) , .DATA_B (SUMMAND[76]) , .DATA_C (SUMMAND[77]) , .SAVE (INT_SUM[64]) , .CARRY (INT_CARRY[52]) );
HALF_ADDER HA_13 (.DATA_A (SUMMAND[78]) , .DATA_B (SUMMAND[79]) , .SAVE (INT_SUM[65]) , .CARRY (INT_CARRY[53]) );
FULL_ADDER FA_39 (.DATA_A (INT_SUM[63]) , .DATA_B (INT_SUM[64]) , .DATA_C (INT_SUM[65]) , .SAVE (INT_SUM[66]) , .CARRY (INT_CARRY[54]) );
FULL_ADDER FA_40 (.DATA_A (INT_CARRY[44]) , .DATA_B (INT_CARRY[45]) , .DATA_C (INT_CARRY[46]) , .SAVE (INT_SUM[67]) , .CARRY (INT_CARRY[55]) );
FULL_ADDER FA_41 (.DATA_A (INT_SUM[66]) , .DATA_B (INT_SUM[67]) , .DATA_C (INT_CARRY[47]) , .SAVE (INT_SUM[68]) , .CARRY (INT_CARRY[56]) );
assign INT_SUM[69] = INT_CARRY[48];
FULL_ADDER FA_42 (.DATA_A (INT_SUM[68]) , .DATA_B (INT_SUM[69]) , .DATA_C (INT_CARRY[49]) , .SAVE (INT_SUM[70]) , .CARRY (INT_CARRY[50]) );
FLIPFLOP LA_29 (.DIN (INT_SUM[70]) , .RST(RST), .CLK (CLK) , .DOUT (SUM[15]) );
FLIPFLOP LA_30 (.DIN (INT_CARRY[50]) , .RST(RST), .CLK (CLK) , .DOUT (CARRY[15]) );
FULL_ADDER FA_43 (.DATA_A (SUMMAND[80]) , .DATA_B (SUMMAND[81]) , .DATA_C (SUMMAND[82]) , .SAVE (INT_SUM[71]) , .CARRY (INT_CARRY[58]) );
FULL_ADDER FA_44 (.DATA_A (SUMMAND[83]) , .DATA_B (SUMMAND[84]) , .DATA_C (SUMMAND[85]) , .SAVE (INT_SUM[72]) , .CARRY (INT_CARRY[59]) );
FULL_ADDER FA_45 (.DATA_A (SUMMAND[86]) , .DATA_B (SUMMAND[87]) , .DATA_C (SUMMAND[88]) , .SAVE (INT_SUM[73]) , .CARRY (INT_CARRY[60]) );
assign INT_SUM[74] = SUMMAND[89];
FULL_ADDER FA_46 (.DATA_A (INT_SUM[71]) , .DATA_B (INT_SUM[72]) , .DATA_C (INT_SUM[73]) , .SAVE (INT_SUM[75]) , .CARRY (INT_CARRY[61]) );
FULL_ADDER FA_47 (.DATA_A (INT_SUM[74]) , .DATA_B (INT_CARRY[51]) , .DATA_C (INT_CARRY[52]) , .SAVE (INT_SUM[76]) , .CARRY (INT_CARRY[62]) );
assign INT_SUM[77] = INT_CARRY[53];
FULL_ADDER FA_48 (.DATA_A (INT_SUM[75]) , .DATA_B (INT_SUM[76]) , .DATA_C (INT_SUM[77]) , .SAVE (INT_SUM[78]) , .CARRY (INT_CARRY[63]) );
HALF_ADDER HA_14 (.DATA_A (INT_CARRY[54]) , .DATA_B (INT_CARRY[55]) , .SAVE (INT_SUM[79]) , .CARRY (INT_CARRY[64]) );
FULL_ADDER FA_49 (.DATA_A (INT_SUM[78]) , .DATA_B (INT_SUM[79]) , .DATA_C (INT_CARRY[56]) , .SAVE (INT_SUM[80]) , .CARRY (INT_CARRY[57]) );
FLIPFLOP LA_31 (.DIN (INT_SUM[80]) , .RST(RST), .CLK (CLK) , .DOUT (SUM[16]) );
FLIPFLOP LA_32 (.DIN (INT_CARRY[57]) , .RST(RST), .CLK (CLK) , .DOUT (CARRY[16]) );
FULL_ADDER FA_50 (.DATA_A (SUMMAND[90]) , .DATA_B (SUMMAND[91]) , .DATA_C (SUMMAND[92]) , .SAVE (INT_SUM[81]) , .CARRY (INT_CARRY[65]) );
FULL_ADDER FA_51 (.DATA_A (SUMMAND[93]) , .DATA_B (SUMMAND[94]) , .DATA_C (SUMMAND[95]) , .SAVE (INT_SUM[82]) , .CARRY (INT_CARRY[66]) );
FULL_ADDER FA_52 (.DATA_A (SUMMAND[96]) , .DATA_B (SUMMAND[97]) , .DATA_C (SUMMAND[98]) , .SAVE (INT_SUM[83]) , .CARRY (INT_CARRY[67]) );
FULL_ADDER FA_53 (.DATA_A (INT_SUM[81]) , .DATA_B (INT_SUM[82]) , .DATA_C (INT_SUM[83]) , .SAVE (INT_SUM[84]) , .CARRY (INT_CARRY[68]) );
FULL_ADDER FA_54 (.DATA_A (INT_CARRY[58]) , .DATA_B (INT_CARRY[59]) , .DATA_C (INT_CARRY[60]) , .SAVE (INT_SUM[85]) , .CARRY (INT_CARRY[69]) );
FULL_ADDER FA_55 (.DATA_A (INT_SUM[84]) , .DATA_B (INT_SUM[85]) , .DATA_C (INT_CARRY[61]) , .SAVE (INT_SUM[86]) , .CARRY (INT_CARRY[70]) );
assign INT_SUM[87] = INT_CARRY[62];
FULL_ADDER FA_56 (.DATA_A (INT_SUM[86]) , .DATA_B (INT_SUM[87]) , .DATA_C (INT_CARRY[63]) , .SAVE (INT_SUM[88]) , .CARRY (INT_CARRY[71]) );
assign INT_SUM[90] = INT_CARRY[64];
FLIPFLOP LA_33 (.DIN (INT_SUM[88]) , .RST(RST), .CLK (CLK) , .DOUT (INT_SUM[89]) );
FLIPFLOP LA_34 (.DIN (INT_SUM[90]) , .RST(RST), .CLK (CLK) , .DOUT (INT_SUM[91]) );
HALF_ADDER HA_15 (.DATA_A (INT_SUM[89]) , .DATA_B (INT_SUM[91]) , .SAVE (SUM[17]) , .CARRY (CARRY[17]) );
FULL_ADDER FA_57 (.DATA_A (SUMMAND[99]) , .DATA_B (SUMMAND[100]) , .DATA_C (SUMMAND[101]) , .SAVE (INT_SUM[92]) , .CARRY (INT_CARRY[73]) );
FULL_ADDER FA_58 (.DATA_A (SUMMAND[102]) , .DATA_B (SUMMAND[103]) , .DATA_C (SUMMAND[104]) , .SAVE (INT_SUM[93]) , .CARRY (INT_CARRY[74]) );
FULL_ADDER FA_59 (.DATA_A (SUMMAND[105]) , .DATA_B (SUMMAND[106]) , .DATA_C (SUMMAND[107]) , .SAVE (INT_SUM[94]) , .CARRY (INT_CARRY[75]) );
assign INT_SUM[95] = SUMMAND[108];
assign INT_SUM[96] = SUMMAND[109];
FULL_ADDER FA_60 (.DATA_A (INT_SUM[92]) , .DATA_B (INT_SUM[93]) , .DATA_C (INT_SUM[94]) , .SAVE (INT_SUM[97]) , .CARRY (INT_CARRY[76]) );
FULL_ADDER FA_61 (.DATA_A (INT_SUM[95]) , .DATA_B (INT_SUM[96]) , .DATA_C (INT_CARRY[65]) , .SAVE (INT_SUM[98]) , .CARRY (INT_CARRY[77]) );
assign INT_SUM[99] = INT_CARRY[66];
assign INT_SUM[100] = INT_CARRY[67];
FULL_ADDER FA_62 (.DATA_A (INT_SUM[97]) , .DATA_B (INT_SUM[98]) , .DATA_C (INT_SUM[99]) , .SAVE (INT_SUM[101]) , .CARRY (INT_CARRY[78]) );
FULL_ADDER FA_63 (.DATA_A (INT_SUM[100]) , .DATA_B (INT_CARRY[68]) , .DATA_C (INT_CARRY[69]) , .SAVE (INT_SUM[102]) , .CARRY (INT_CARRY[79]) );
FULL_ADDER FA_64 (.DATA_A (INT_SUM[101]) , .DATA_B (INT_SUM[102]) , .DATA_C (INT_CARRY[70]) , .SAVE (INT_SUM[103]) , .CARRY (INT_CARRY[80]) );
FLIPFLOP LA_35 (.DIN (INT_SUM[103]) , .RST(RST), .CLK (CLK) , .DOUT (INT_SUM[104]) );
FLIPFLOP LA_36 (.DIN (INT_CARRY[71]) , .RST(RST), .CLK (CLK) , .DOUT (INT_CARRY[72]) );
HALF_ADDER HA_16 (.DATA_A (INT_SUM[104]) , .DATA_B (INT_CARRY[72]) , .SAVE (SUM[18]) , .CARRY (CARRY[18]) );
FULL_ADDER FA_65 (.DATA_A (SUMMAND[110]) , .DATA_B (SUMMAND[111]) , .DATA_C (SUMMAND[112]) , .SAVE (INT_SUM[105]) , .CARRY (INT_CARRY[82]) );
FULL_ADDER FA_66 (.DATA_A (SUMMAND[113]) , .DATA_B (SUMMAND[114]) , .DATA_C (SUMMAND[115]) , .SAVE (INT_SUM[106]) , .CARRY (INT_CARRY[83]) );
FULL_ADDER FA_67 (.DATA_A (SUMMAND[116]) , .DATA_B (SUMMAND[117]) , .DATA_C (SUMMAND[118]) , .SAVE (INT_SUM[107]) , .CARRY (INT_CARRY[84]) );
assign INT_SUM[108] = SUMMAND[119];
FULL_ADDER FA_68 (.DATA_A (INT_SUM[105]) , .DATA_B (INT_SUM[106]) , .DATA_C (INT_SUM[107]) , .SAVE (INT_SUM[109]) , .CARRY (INT_CARRY[85]) );
FULL_ADDER FA_69 (.DATA_A (INT_SUM[108]) , .DATA_B (INT_CARRY[73]) , .DATA_C (INT_CARRY[74]) , .SAVE (INT_SUM[110]) , .CARRY (INT_CARRY[86]) );
assign INT_SUM[111] = INT_CARRY[75];
FULL_ADDER FA_70 (.DATA_A (INT_SUM[109]) , .DATA_B (INT_SUM[110]) , .DATA_C (INT_SUM[111]) , .SAVE (INT_SUM[112]) , .CARRY (INT_CARRY[87]) );
HALF_ADDER HA_17 (.DATA_A (INT_CARRY[76]) , .DATA_B (INT_CARRY[77]) , .SAVE (INT_SUM[113]) , .CARRY (INT_CARRY[88]) );
FULL_ADDER FA_71 (.DATA_A (INT_SUM[112]) , .DATA_B (INT_SUM[113]) , .DATA_C (INT_CARRY[78]) , .SAVE (INT_SUM[114]) , .CARRY (INT_CARRY[89]) );
assign INT_SUM[116] = INT_CARRY[79];
FLIPFLOP LA_37 (.DIN (INT_SUM[114]) , .RST(RST), .CLK (CLK) , .DOUT (INT_SUM[115]) );
FLIPFLOP LA_38 (.DIN (INT_SUM[116]) , .RST(RST), .CLK (CLK) , .DOUT (INT_SUM[117]) );
FLIPFLOP LA_39 (.DIN (INT_CARRY[80]) , .RST(RST), .CLK (CLK) , .DOUT (INT_CARRY[81]) );
FULL_ADDER FA_72 (.DATA_A (INT_SUM[115]) , .DATA_B (INT_SUM[117]) , .DATA_C (INT_CARRY[81]) , .SAVE (SUM[19]) , .CARRY (CARRY[19]) );
FULL_ADDER FA_73 (.DATA_A (SUMMAND[120]) , .DATA_B (SUMMAND[121]) , .DATA_C (SUMMAND[122]) , .SAVE (INT_SUM[118]) , .CARRY (INT_CARRY[91]) );
FULL_ADDER FA_74 (.DATA_A (SUMMAND[123]) , .DATA_B (SUMMAND[124]) , .DATA_C (SUMMAND[125]) , .SAVE (INT_SUM[119]) , .CARRY (INT_CARRY[92]) );
FULL_ADDER FA_75 (.DATA_A (SUMMAND[126]) , .DATA_B (SUMMAND[127]) , .DATA_C (SUMMAND[128]) , .SAVE (INT_SUM[120]) , .CARRY (INT_CARRY[93]) );
FULL_ADDER FA_76 (.DATA_A (SUMMAND[129]) , .DATA_B (SUMMAND[130]) , .DATA_C (SUMMAND[131]) , .SAVE (INT_SUM[121]) , .CARRY (INT_CARRY[94]) );
FULL_ADDER FA_77 (.DATA_A (INT_SUM[118]) , .DATA_B (INT_SUM[119]) , .DATA_C (INT_SUM[120]) , .SAVE (INT_SUM[122]) , .CARRY (INT_CARRY[95]) );
FULL_ADDER FA_78 (.DATA_A (INT_SUM[121]) , .DATA_B (INT_CARRY[82]) , .DATA_C (INT_CARRY[83]) , .SAVE (INT_SUM[123]) , .CARRY (INT_CARRY[96]) );
assign INT_SUM[124] = INT_CARRY[84];
FULL_ADDER FA_79 (.DATA_A (INT_SUM[122]) , .DATA_B (INT_SUM[123]) , .DATA_C (INT_SUM[124]) , .SAVE (INT_SUM[125]) , .CARRY (INT_CARRY[97]) );
HALF_ADDER HA_18 (.DATA_A (INT_CARRY[85]) , .DATA_B (INT_CARRY[86]) , .SAVE (INT_SUM[126]) , .CARRY (INT_CARRY[98]) );
FULL_ADDER FA_80 (.DATA_A (INT_SUM[125]) , .DATA_B (INT_SUM[126]) , .DATA_C (INT_CARRY[87]) , .SAVE (INT_SUM[127]) , .CARRY (INT_CARRY[99]) );
assign INT_SUM[129] = INT_CARRY[88];
FLIPFLOP LA_40 (.DIN (INT_SUM[127]) , .RST(RST), .CLK (CLK) , .DOUT (INT_SUM[128]) );
FLIPFLOP LA_41 (.DIN (INT_SUM[129]) , .RST(RST), .CLK (CLK) , .DOUT (INT_SUM[130]) );
FLIPFLOP LA_42 (.DIN (INT_CARRY[89]) , .RST(RST), .CLK (CLK) , .DOUT (INT_CARRY[90]) );
FULL_ADDER FA_81 (.DATA_A (INT_SUM[128]) , .DATA_B (INT_SUM[130]) , .DATA_C (INT_CARRY[90]) , .SAVE (SUM[20]) , .CARRY (CARRY[20]) );
FULL_ADDER FA_82 (.DATA_A (SUMMAND[132]) , .DATA_B (SUMMAND[133]) , .DATA_C (SUMMAND[134]) , .SAVE (INT_SUM[131]) , .CARRY (INT_CARRY[101]) );
FULL_ADDER FA_83 (.DATA_A (SUMMAND[135]) , .DATA_B (SUMMAND[136]) , .DATA_C (SUMMAND[137]) , .SAVE (INT_SUM[132]) , .CARRY (INT_CARRY[102]) );
FULL_ADDER FA_84 (.DATA_A (SUMMAND[138]) , .DATA_B (SUMMAND[139]) , .DATA_C (SUMMAND[140]) , .SAVE (INT_SUM[133]) , .CARRY (INT_CARRY[103]) );
assign INT_SUM[134] = SUMMAND[141];
assign INT_SUM[135] = SUMMAND[142];
FULL_ADDER FA_85 (.DATA_A (INT_SUM[131]) , .DATA_B (INT_SUM[132]) , .DATA_C (INT_SUM[133]) , .SAVE (INT_SUM[136]) , .CARRY (INT_CARRY[104]) );
FULL_ADDER FA_86 (.DATA_A (INT_SUM[134]) , .DATA_B (INT_SUM[135]) , .DATA_C (INT_CARRY[91]) , .SAVE (INT_SUM[137]) , .CARRY (INT_CARRY[105]) );
FULL_ADDER FA_87 (.DATA_A (INT_CARRY[92]) , .DATA_B (INT_CARRY[93]) , .DATA_C (INT_CARRY[94]) , .SAVE (INT_SUM[138]) , .CARRY (INT_CARRY[106]) );
FULL_ADDER FA_88 (.DATA_A (INT_SUM[136]) , .DATA_B (INT_SUM[137]) , .DATA_C (INT_SUM[138]) , .SAVE (INT_SUM[139]) , .CARRY (INT_CARRY[107]) );
HALF_ADDER HA_19 (.DATA_A (INT_CARRY[95]) , .DATA_B (INT_CARRY[96]) , .SAVE (INT_SUM[140]) , .CARRY (INT_CARRY[108]) );
FULL_ADDER FA_89 (.DATA_A (INT_SUM[139]) , .DATA_B (INT_SUM[140]) , .DATA_C (INT_CARRY[97]) , .SAVE (INT_SUM[141]) , .CARRY (INT_CARRY[109]) );
assign INT_SUM[143] = INT_CARRY[98];
FLIPFLOP LA_43 (.DIN (INT_SUM[141]) , .RST(RST), .CLK (CLK) , .DOUT (INT_SUM[142]) );
FLIPFLOP LA_44 (.DIN (INT_SUM[143]) , .RST(RST), .CLK (CLK) , .DOUT (INT_SUM[144]) );
FLIPFLOP LA_45 (.DIN (INT_CARRY[99]) , .RST(RST), .CLK (CLK) , .DOUT (INT_CARRY[100]) );
FULL_ADDER FA_90 (.DATA_A (INT_SUM[142]) , .DATA_B (INT_SUM[144]) , .DATA_C (INT_CARRY[100]) , .SAVE (SUM[21]) , .CARRY (CARRY[21]) );
FULL_ADDER FA_91 (.DATA_A (SUMMAND[143]) , .DATA_B (SUMMAND[144]) , .DATA_C (SUMMAND[145]) , .SAVE (INT_SUM[145]) , .CARRY (INT_CARRY[111]) );
FULL_ADDER FA_92 (.DATA_A (SUMMAND[146]) , .DATA_B (SUMMAND[147]) , .DATA_C (SUMMAND[148]) , .SAVE (INT_SUM[146]) , .CARRY (INT_CARRY[112]) );
FULL_ADDER FA_93 (.DATA_A (SUMMAND[149]) , .DATA_B (SUMMAND[150]) , .DATA_C (SUMMAND[151]) , .SAVE (INT_SUM[147]) , .CARRY (INT_CARRY[113]) );
FULL_ADDER FA_94 (.DATA_A (SUMMAND[152]) , .DATA_B (SUMMAND[153]) , .DATA_C (SUMMAND[154]) , .SAVE (INT_SUM[148]) , .CARRY (INT_CARRY[114]) );
assign INT_SUM[149] = SUMMAND[155];
FULL_ADDER FA_95 (.DATA_A (INT_SUM[145]) , .DATA_B (INT_SUM[146]) , .DATA_C (INT_SUM[147]) , .SAVE (INT_SUM[150]) , .CARRY (INT_CARRY[115]) );
FULL_ADDER FA_96 (.DATA_A (INT_SUM[148]) , .DATA_B (INT_SUM[149]) , .DATA_C (INT_CARRY[101]) , .SAVE (INT_SUM[151]) , .CARRY (INT_CARRY[116]) );
HALF_ADDER HA_20 (.DATA_A (INT_CARRY[102]) , .DATA_B (INT_CARRY[103]) , .SAVE (INT_SUM[152]) , .CARRY (INT_CARRY[117]) );
FULL_ADDER FA_97 (.DATA_A (INT_SUM[150]) , .DATA_B (INT_SUM[151]) , .DATA_C (INT_SUM[152]) , .SAVE (INT_SUM[153]) , .CARRY (INT_CARRY[118]) );
FULL_ADDER FA_98 (.DATA_A (INT_CARRY[104]) , .DATA_B (INT_CARRY[105]) , .DATA_C (INT_CARRY[106]) , .SAVE (INT_SUM[154]) , .CARRY (INT_CARRY[119]) );
FULL_ADDER FA_99 (.DATA_A (INT_SUM[153]) , .DATA_B (INT_SUM[154]) , .DATA_C (INT_CARRY[107]) , .SAVE (INT_SUM[155]) , .CARRY (INT_CARRY[120]) );
assign INT_SUM[157] = INT_CARRY[108];
FLIPFLOP LA_46 (.DIN (INT_SUM[155]) , .RST(RST), .CLK (CLK) , .DOUT (INT_SUM[156]) );
FLIPFLOP LA_47 (.DIN (INT_SUM[157]) , .RST(RST), .CLK (CLK) , .DOUT (INT_SUM[158]) );
FLIPFLOP LA_48 (.DIN (INT_CARRY[109]) , .RST(RST), .CLK (CLK) , .DOUT (INT_CARRY[110]) );
FULL_ADDER FA_100 (.DATA_A (INT_SUM[156]) , .DATA_B (INT_SUM[158]) , .DATA_C (INT_CARRY[110]) , .SAVE (SUM[22]) , .CARRY (CARRY[22]) );
FULL_ADDER FA_101 (.DATA_A (SUMMAND[156]) , .DATA_B (SUMMAND[157]) , .DATA_C (SUMMAND[158]) , .SAVE (INT_SUM[159]) , .CARRY (INT_CARRY[122]) );
FULL_ADDER FA_102 (.DATA_A (SUMMAND[159]) , .DATA_B (SUMMAND[160]) , .DATA_C (SUMMAND[161]) , .SAVE (INT_SUM[160]) , .CARRY (INT_CARRY[123]) );
FULL_ADDER FA_103 (.DATA_A (SUMMAND[162]) , .DATA_B (SUMMAND[163]) , .DATA_C (SUMMAND[164]) , .SAVE (INT_SUM[161]) , .CARRY (INT_CARRY[124]) );
FULL_ADDER FA_104 (.DATA_A (SUMMAND[165]) , .DATA_B (SUMMAND[166]) , .DATA_C (SUMMAND[167]) , .SAVE (INT_SUM[162]) , .CARRY (INT_CARRY[125]) );
FULL_ADDER FA_105 (.DATA_A (INT_SUM[159]) , .DATA_B (INT_SUM[160]) , .DATA_C (INT_SUM[161]) , .SAVE (INT_SUM[163]) , .CARRY (INT_CARRY[126]) );
FULL_ADDER FA_106 (.DATA_A (INT_SUM[162]) , .DATA_B (INT_CARRY[111]) , .DATA_C (INT_CARRY[112]) , .SAVE (INT_SUM[164]) , .CARRY (INT_CARRY[127]) );
HALF_ADDER HA_21 (.DATA_A (INT_CARRY[113]) , .DATA_B (INT_CARRY[114]) , .SAVE (INT_SUM[165]) , .CARRY (INT_CARRY[128]) );
FULL_ADDER FA_107 (.DATA_A (INT_SUM[163]) , .DATA_B (INT_SUM[164]) , .DATA_C (INT_SUM[165]) , .SAVE (INT_SUM[166]) , .CARRY (INT_CARRY[129]) );
FULL_ADDER FA_108 (.DATA_A (INT_CARRY[115]) , .DATA_B (INT_CARRY[116]) , .DATA_C (INT_CARRY[117]) , .SAVE (INT_SUM[167]) , .CARRY (INT_CARRY[130]) );
FULL_ADDER FA_109 (.DATA_A (INT_SUM[166]) , .DATA_B (INT_SUM[167]) , .DATA_C (INT_CARRY[118]) , .SAVE (INT_SUM[168]) , .CARRY (INT_CARRY[131]) );
assign INT_SUM[170] = INT_CARRY[119];
FLIPFLOP LA_49 (.DIN (INT_SUM[168]) , .RST(RST), .CLK (CLK) , .DOUT (INT_SUM[169]) );
FLIPFLOP LA_50 (.DIN (INT_SUM[170]) , .RST(RST), .CLK (CLK) , .DOUT (INT_SUM[171]) );
FLIPFLOP LA_51 (.DIN (INT_CARRY[120]) , .RST(RST), .CLK (CLK) , .DOUT (INT_CARRY[121]) );
FULL_ADDER FA_110 (.DATA_A (INT_SUM[169]) , .DATA_B (INT_SUM[171]) , .DATA_C (INT_CARRY[121]) , .SAVE (SUM[23]) , .CARRY (CARRY[23]) );
FULL_ADDER FA_111 (.DATA_A (SUMMAND[168]) , .DATA_B (SUMMAND[169]) , .DATA_C (SUMMAND[170]) , .SAVE (INT_SUM[172]) , .CARRY (INT_CARRY[133]) );
FULL_ADDER FA_112 (.DATA_A (SUMMAND[171]) , .DATA_B (SUMMAND[172]) , .DATA_C (SUMMAND[173]) , .SAVE (INT_SUM[173]) , .CARRY (INT_CARRY[134]) );
FULL_ADDER FA_113 (.DATA_A (SUMMAND[174]) , .DATA_B (SUMMAND[175]) , .DATA_C (SUMMAND[176]) , .SAVE (INT_SUM[174]) , .CARRY (INT_CARRY[135]) );
FULL_ADDER FA_114 (.DATA_A (SUMMAND[177]) , .DATA_B (SUMMAND[178]) , .DATA_C (SUMMAND[179]) , .SAVE (INT_SUM[175]) , .CARRY (INT_CARRY[136]) );
HALF_ADDER HA_22 (.DATA_A (SUMMAND[180]) , .DATA_B (SUMMAND[181]) , .SAVE (INT_SUM[176]) , .CARRY (INT_CARRY[137]) );
FULL_ADDER FA_115 (.DATA_A (INT_SUM[172]) , .DATA_B (INT_SUM[173]) , .DATA_C (INT_SUM[174]) , .SAVE (INT_SUM[177]) , .CARRY (INT_CARRY[138]) );
FULL_ADDER FA_116 (.DATA_A (INT_SUM[175]) , .DATA_B (INT_SUM[176]) , .DATA_C (INT_CARRY[122]) , .SAVE (INT_SUM[178]) , .CARRY (INT_CARRY[139]) );
FULL_ADDER FA_117 (.DATA_A (INT_CARRY[123]) , .DATA_B (INT_CARRY[124]) , .DATA_C (INT_CARRY[125]) , .SAVE (INT_SUM[179]) , .CARRY (INT_CARRY[140]) );
FULL_ADDER FA_118 (.DATA_A (INT_SUM[177]) , .DATA_B (INT_SUM[178]) , .DATA_C (INT_SUM[179]) , .SAVE (INT_SUM[180]) , .CARRY (INT_CARRY[141]) );
FULL_ADDER FA_119 (.DATA_A (INT_CARRY[126]) , .DATA_B (INT_CARRY[127]) , .DATA_C (INT_CARRY[128]) , .SAVE (INT_SUM[181]) , .CARRY (INT_CARRY[142]) );
FULL_ADDER FA_120 (.DATA_A (INT_SUM[180]) , .DATA_B (INT_SUM[181]) , .DATA_C (INT_CARRY[129]) , .SAVE (INT_SUM[182]) , .CARRY (INT_CARRY[143]) );
assign INT_SUM[184] = INT_CARRY[130];
FLIPFLOP LA_52 (.DIN (INT_SUM[182]) , .RST(RST), .CLK (CLK) , .DOUT (INT_SUM[183]) );
FLIPFLOP LA_53 (.DIN (INT_SUM[184]) , .RST(RST), .CLK (CLK) , .DOUT (INT_SUM[185]) );
FLIPFLOP LA_54 (.DIN (INT_CARRY[131]) , .RST(RST), .CLK (CLK) , .DOUT (INT_CARRY[132]) );
FULL_ADDER FA_121 (.DATA_A (INT_SUM[183]) , .DATA_B (INT_SUM[185]) , .DATA_C (INT_CARRY[132]) , .SAVE (SUM[24]) , .CARRY (CARRY[24]) );
FULL_ADDER FA_122 (.DATA_A (SUMMAND[182]) , .DATA_B (SUMMAND[183]) , .DATA_C (SUMMAND[184]) , .SAVE (INT_SUM[186]) , .CARRY (INT_CARRY[145]) );
FULL_ADDER FA_123 (.DATA_A (SUMMAND[185]) , .DATA_B (SUMMAND[186]) , .DATA_C (SUMMAND[187]) , .SAVE (INT_SUM[187]) , .CARRY (INT_CARRY[146]) );
FULL_ADDER FA_124 (.DATA_A (SUMMAND[188]) , .DATA_B (SUMMAND[189]) , .DATA_C (SUMMAND[190]) , .SAVE (INT_SUM[188]) , .CARRY (INT_CARRY[147]) );
FULL_ADDER FA_125 (.DATA_A (SUMMAND[191]) , .DATA_B (SUMMAND[192]) , .DATA_C (SUMMAND[193]) , .SAVE (INT_SUM[189]) , .CARRY (INT_CARRY[148]) );
assign INT_SUM[190] = SUMMAND[194];
FULL_ADDER FA_126 (.DATA_A (INT_SUM[186]) , .DATA_B (INT_SUM[187]) , .DATA_C (INT_SUM[188]) , .SAVE (INT_SUM[191]) , .CARRY (INT_CARRY[149]) );
FULL_ADDER FA_127 (.DATA_A (INT_SUM[189]) , .DATA_B (INT_SUM[190]) , .DATA_C (INT_CARRY[133]) , .SAVE (INT_SUM[192]) , .CARRY (INT_CARRY[150]) );
FULL_ADDER FA_128 (.DATA_A (INT_CARRY[134]) , .DATA_B (INT_CARRY[135]) , .DATA_C (INT_CARRY[136]) , .SAVE (INT_SUM[193]) , .CARRY (INT_CARRY[151]) );
assign INT_SUM[194] = INT_CARRY[137];
FULL_ADDER FA_129 (.DATA_A (INT_SUM[191]) , .DATA_B (INT_SUM[192]) , .DATA_C (INT_SUM[193]) , .SAVE (INT_SUM[195]) , .CARRY (INT_CARRY[152]) );
FULL_ADDER FA_130 (.DATA_A (INT_SUM[194]) , .DATA_B (INT_CARRY[138]) , .DATA_C (INT_CARRY[139]) , .SAVE (INT_SUM[196]) , .CARRY (INT_CARRY[153]) );
assign INT_SUM[197] = INT_CARRY[140];
FULL_ADDER FA_131 (.DATA_A (INT_SUM[195]) , .DATA_B (INT_SUM[196]) , .DATA_C (INT_SUM[197]) , .SAVE (INT_SUM[198]) , .CARRY (INT_CARRY[154]) );
HALF_ADDER HA_23 (.DATA_A (INT_CARRY[141]) , .DATA_B (INT_CARRY[142]) , .SAVE (INT_SUM[200]) , .CARRY (INT_CARRY[156]) );
FLIPFLOP LA_55 (.DIN (INT_SUM[198]) , .RST(RST), .CLK (CLK) , .DOUT (INT_SUM[199]) );
FLIPFLOP LA_56 (.DIN (INT_SUM[200]) , .RST(RST), .CLK (CLK) , .DOUT (INT_SUM[201]) );
FLIPFLOP LA_57 (.DIN (INT_CARRY[143]) , .RST(RST), .CLK (CLK) , .DOUT (INT_CARRY[144]) );
FULL_ADDER FA_132 (.DATA_A (INT_SUM[199]) , .DATA_B (INT_SUM[201]) , .DATA_C (INT_CARRY[144]) , .SAVE (SUM[25]) , .CARRY (CARRY[25]) );
FULL_ADDER FA_133 (.DATA_A (SUMMAND[195]) , .DATA_B (SUMMAND[196]) , .DATA_C (SUMMAND[197]) , .SAVE (INT_SUM[202]) , .CARRY (INT_CARRY[158]) );
FULL_ADDER FA_134 (.DATA_A (SUMMAND[198]) , .DATA_B (SUMMAND[199]) , .DATA_C (SUMMAND[200]) , .SAVE (INT_SUM[203]) , .CARRY (INT_CARRY[159]) );
FULL_ADDER FA_135 (.DATA_A (SUMMAND[201]) , .DATA_B (SUMMAND[202]) , .DATA_C (SUMMAND[203]) , .SAVE (INT_SUM[204]) , .CARRY (INT_CARRY[160]) );
FULL_ADDER FA_136 (.DATA_A (SUMMAND[204]) , .DATA_B (SUMMAND[205]) , .DATA_C (SUMMAND[206]) , .SAVE (INT_SUM[205]) , .CARRY (INT_CARRY[161]) );
FULL_ADDER FA_137 (.DATA_A (SUMMAND[207]) , .DATA_B (SUMMAND[208]) , .DATA_C (SUMMAND[209]) , .SAVE (INT_SUM[206]) , .CARRY (INT_CARRY[162]) );
FULL_ADDER FA_138 (.DATA_A (INT_SUM[202]) , .DATA_B (INT_SUM[203]) , .DATA_C (INT_SUM[204]) , .SAVE (INT_SUM[207]) , .CARRY (INT_CARRY[163]) );
FULL_ADDER FA_139 (.DATA_A (INT_SUM[205]) , .DATA_B (INT_SUM[206]) , .DATA_C (INT_CARRY[145]) , .SAVE (INT_SUM[208]) , .CARRY (INT_CARRY[164]) );
FULL_ADDER FA_140 (.DATA_A (INT_CARRY[146]) , .DATA_B (INT_CARRY[147]) , .DATA_C (INT_CARRY[148]) , .SAVE (INT_SUM[209]) , .CARRY (INT_CARRY[165]) );
FULL_ADDER FA_141 (.DATA_A (INT_SUM[207]) , .DATA_B (INT_SUM[208]) , .DATA_C (INT_SUM[209]) , .SAVE (INT_SUM[210]) , .CARRY (INT_CARRY[166]) );
FULL_ADDER FA_142 (.DATA_A (INT_CARRY[149]) , .DATA_B (INT_CARRY[150]) , .DATA_C (INT_CARRY[151]) , .SAVE (INT_SUM[211]) , .CARRY (INT_CARRY[167]) );
FULL_ADDER FA_143 (.DATA_A (INT_SUM[210]) , .DATA_B (INT_SUM[211]) , .DATA_C (INT_CARRY[152]) , .SAVE (INT_SUM[212]) , .CARRY (INT_CARRY[168]) );
assign INT_SUM[214] = INT_CARRY[153];
FLIPFLOP LA_58 (.DIN (INT_SUM[212]) , .RST(RST), .CLK (CLK) , .DOUT (INT_SUM[213]) );
FLIPFLOP LA_59 (.DIN (INT_SUM[214]) , .RST(RST), .CLK (CLK) , .DOUT (INT_SUM[215]) );
FLIPFLOP LA_60 (.DIN (INT_CARRY[154]) , .RST(RST), .CLK (CLK) , .DOUT (INT_CARRY[155]) );
FULL_ADDER FA_144 (.DATA_A (INT_SUM[213]) , .DATA_B (INT_SUM[215]) , .DATA_C (INT_CARRY[155]) , .SAVE (INT_SUM[216]) , .CARRY (INT_CARRY[170]) );
FLIPFLOP LA_61 (.DIN (INT_CARRY[156]) , .RST(RST), .CLK (CLK) , .DOUT (INT_CARRY[157]) );
assign INT_SUM[217] = INT_CARRY[157];
HALF_ADDER HA_24 (.DATA_A (INT_SUM[216]) , .DATA_B (INT_SUM[217]) , .SAVE (SUM[26]) , .CARRY (CARRY[26]) );
FULL_ADDER FA_145 (.DATA_A (SUMMAND[210]) , .DATA_B (SUMMAND[211]) , .DATA_C (SUMMAND[212]) , .SAVE (INT_SUM[218]) , .CARRY (INT_CARRY[171]) );
FULL_ADDER FA_146 (.DATA_A (SUMMAND[213]) , .DATA_B (SUMMAND[214]) , .DATA_C (SUMMAND[215]) , .SAVE (INT_SUM[219]) , .CARRY (INT_CARRY[172]) );
FULL_ADDER FA_147 (.DATA_A (SUMMAND[216]) , .DATA_B (SUMMAND[217]) , .DATA_C (SUMMAND[218]) , .SAVE (INT_SUM[220]) , .CARRY (INT_CARRY[173]) );
FULL_ADDER FA_148 (.DATA_A (SUMMAND[219]) , .DATA_B (SUMMAND[220]) , .DATA_C (SUMMAND[221]) , .SAVE (INT_SUM[221]) , .CARRY (INT_CARRY[174]) );
HALF_ADDER HA_25 (.DATA_A (SUMMAND[222]) , .DATA_B (SUMMAND[223]) , .SAVE (INT_SUM[222]) , .CARRY (INT_CARRY[175]) );
FULL_ADDER FA_149 (.DATA_A (INT_SUM[218]) , .DATA_B (INT_SUM[219]) , .DATA_C (INT_SUM[220]) , .SAVE (INT_SUM[223]) , .CARRY (INT_CARRY[176]) );
FULL_ADDER FA_150 (.DATA_A (INT_SUM[221]) , .DATA_B (INT_SUM[222]) , .DATA_C (INT_CARRY[158]) , .SAVE (INT_SUM[224]) , .CARRY (INT_CARRY[177]) );
FULL_ADDER FA_151 (.DATA_A (INT_CARRY[159]) , .DATA_B (INT_CARRY[160]) , .DATA_C (INT_CARRY[161]) , .SAVE (INT_SUM[225]) , .CARRY (INT_CARRY[178]) );
assign INT_SUM[226] = INT_CARRY[162];
FULL_ADDER FA_152 (.DATA_A (INT_SUM[223]) , .DATA_B (INT_SUM[224]) , .DATA_C (INT_SUM[225]) , .SAVE (INT_SUM[227]) , .CARRY (INT_CARRY[179]) );
FULL_ADDER FA_153 (.DATA_A (INT_SUM[226]) , .DATA_B (INT_CARRY[163]) , .DATA_C (INT_CARRY[164]) , .SAVE (INT_SUM[228]) , .CARRY (INT_CARRY[180]) );
assign INT_SUM[229] = INT_CARRY[165];
FULL_ADDER FA_154 (.DATA_A (INT_SUM[227]) , .DATA_B (INT_SUM[228]) , .DATA_C (INT_SUM[229]) , .SAVE (INT_SUM[230]) , .CARRY (INT_CARRY[181]) );
assign INT_SUM[232] = INT_CARRY[166];
assign INT_SUM[234] = INT_CARRY[167];
FLIPFLOP LA_62 (.DIN (INT_SUM[230]) , .RST(RST), .CLK (CLK) , .DOUT (INT_SUM[231]) );
FLIPFLOP LA_63 (.DIN (INT_SUM[232]) , .RST(RST), .CLK (CLK) , .DOUT (INT_SUM[233]) );
FLIPFLOP LA_64 (.DIN (INT_SUM[234]) , .RST(RST), .CLK (CLK) , .DOUT (INT_SUM[235]) );
FULL_ADDER FA_155 (.DATA_A (INT_SUM[231]) , .DATA_B (INT_SUM[233]) , .DATA_C (INT_SUM[235]) , .SAVE (INT_SUM[236]) , .CARRY (INT_CARRY[183]) );
FLIPFLOP LA_65 (.DIN (INT_CARRY[168]) , .RST(RST), .CLK (CLK) , .DOUT (INT_CARRY[169]) );
assign INT_SUM[237] = INT_CARRY[169];
FULL_ADDER FA_156 (.DATA_A (INT_SUM[236]) , .DATA_B (INT_SUM[237]) , .DATA_C (INT_CARRY[170]) , .SAVE (SUM[27]) , .CARRY (CARRY[27]) );
FULL_ADDER FA_157 (.DATA_A (SUMMAND[224]) , .DATA_B (SUMMAND[225]) , .DATA_C (SUMMAND[226]) , .SAVE (INT_SUM[238]) , .CARRY (INT_CARRY[184]) );
FULL_ADDER FA_158 (.DATA_A (SUMMAND[227]) , .DATA_B (SUMMAND[228]) , .DATA_C (SUMMAND[229]) , .SAVE (INT_SUM[239]) , .CARRY (INT_CARRY[185]) );
FULL_ADDER FA_159 (.DATA_A (SUMMAND[230]) , .DATA_B (SUMMAND[231]) , .DATA_C (SUMMAND[232]) , .SAVE (INT_SUM[240]) , .CARRY (INT_CARRY[186]) );
FULL_ADDER FA_160 (.DATA_A (SUMMAND[233]) , .DATA_B (SUMMAND[234]) , .DATA_C (SUMMAND[235]) , .SAVE (INT_SUM[241]) , .CARRY (INT_CARRY[187]) );
FULL_ADDER FA_161 (.DATA_A (SUMMAND[236]) , .DATA_B (SUMMAND[237]) , .DATA_C (SUMMAND[238]) , .SAVE (INT_SUM[242]) , .CARRY (INT_CARRY[188]) );
assign INT_SUM[243] = SUMMAND[239];
FULL_ADDER FA_162 (.DATA_A (INT_SUM[238]) , .DATA_B (INT_SUM[239]) , .DATA_C (INT_SUM[240]) , .SAVE (INT_SUM[244]) , .CARRY (INT_CARRY[189]) );
FULL_ADDER FA_163 (.DATA_A (INT_SUM[241]) , .DATA_B (INT_SUM[242]) , .DATA_C (INT_SUM[243]) , .SAVE (INT_SUM[245]) , .CARRY (INT_CARRY[190]) );
FULL_ADDER FA_164 (.DATA_A (INT_CARRY[171]) , .DATA_B (INT_CARRY[172]) , .DATA_C (INT_CARRY[173]) , .SAVE (INT_SUM[246]) , .CARRY (INT_CARRY[191]) );
assign INT_SUM[247] = INT_CARRY[174];
assign INT_SUM[248] = INT_CARRY[175];
FULL_ADDER FA_165 (.DATA_A (INT_SUM[244]) , .DATA_B (INT_SUM[245]) , .DATA_C (INT_SUM[246]) , .SAVE (INT_SUM[249]) , .CARRY (INT_CARRY[192]) );
FULL_ADDER FA_166 (.DATA_A (INT_SUM[247]) , .DATA_B (INT_SUM[248]) , .DATA_C (INT_CARRY[176]) , .SAVE (INT_SUM[250]) , .CARRY (INT_CARRY[193]) );
assign INT_SUM[251] = INT_CARRY[177];
assign INT_SUM[252] = INT_CARRY[178];
FULL_ADDER FA_167 (.DATA_A (INT_SUM[249]) , .DATA_B (INT_SUM[250]) , .DATA_C (INT_SUM[251]) , .SAVE (INT_SUM[253]) , .CARRY (INT_CARRY[194]) );
FULL_ADDER FA_168 (.DATA_A (INT_SUM[252]) , .DATA_B (INT_CARRY[179]) , .DATA_C (INT_CARRY[180]) , .SAVE (INT_SUM[255]) , .CARRY (INT_CARRY[196]) );
FLIPFLOP LA_66 (.DIN (INT_SUM[253]) , .RST(RST), .CLK (CLK) , .DOUT (INT_SUM[254]) );
FLIPFLOP LA_67 (.DIN (INT_SUM[255]) , .RST(RST), .CLK (CLK) , .DOUT (INT_SUM[256]) );
FLIPFLOP LA_68 (.DIN (INT_CARRY[181]) , .RST(RST), .CLK (CLK) , .DOUT (INT_CARRY[182]) );
FULL_ADDER FA_169 (.DATA_A (INT_SUM[254]) , .DATA_B (INT_SUM[256]) , .DATA_C (INT_CARRY[182]) , .SAVE (INT_SUM[257]) , .CARRY (INT_CARRY[198]) );
HALF_ADDER HA_26 (.DATA_A (INT_SUM[257]) , .DATA_B (INT_CARRY[183]) , .SAVE (SUM[28]) , .CARRY (CARRY[28]) );
FULL_ADDER FA_170 (.DATA_A (SUMMAND[240]) , .DATA_B (SUMMAND[241]) , .DATA_C (SUMMAND[242]) , .SAVE (INT_SUM[258]) , .CARRY (INT_CARRY[199]) );
FULL_ADDER FA_171 (.DATA_A (SUMMAND[243]) , .DATA_B (SUMMAND[244]) , .DATA_C (SUMMAND[245]) , .SAVE (INT_SUM[259]) , .CARRY (INT_CARRY[200]) );
FULL_ADDER FA_172 (.DATA_A (SUMMAND[246]) , .DATA_B (SUMMAND[247]) , .DATA_C (SUMMAND[248]) , .SAVE (INT_SUM[260]) , .CARRY (INT_CARRY[201]) );
FULL_ADDER FA_173 (.DATA_A (SUMMAND[249]) , .DATA_B (SUMMAND[250]) , .DATA_C (SUMMAND[251]) , .SAVE (INT_SUM[261]) , .CARRY (INT_CARRY[202]) );
FULL_ADDER FA_174 (.DATA_A (SUMMAND[252]) , .DATA_B (SUMMAND[253]) , .DATA_C (SUMMAND[254]) , .SAVE (INT_SUM[262]) , .CARRY (INT_CARRY[203]) );
FULL_ADDER FA_175 (.DATA_A (INT_SUM[258]) , .DATA_B (INT_SUM[259]) , .DATA_C (INT_SUM[260]) , .SAVE (INT_SUM[263]) , .CARRY (INT_CARRY[204]) );
FULL_ADDER FA_176 (.DATA_A (INT_SUM[261]) , .DATA_B (INT_SUM[262]) , .DATA_C (INT_CARRY[184]) , .SAVE (INT_SUM[264]) , .CARRY (INT_CARRY[205]) );
FULL_ADDER FA_177 (.DATA_A (INT_CARRY[185]) , .DATA_B (INT_CARRY[186]) , .DATA_C (INT_CARRY[187]) , .SAVE (INT_SUM[265]) , .CARRY (INT_CARRY[206]) );
assign INT_SUM[266] = INT_CARRY[188];
FULL_ADDER FA_178 (.DATA_A (INT_SUM[263]) , .DATA_B (INT_SUM[264]) , .DATA_C (INT_SUM[265]) , .SAVE (INT_SUM[267]) , .CARRY (INT_CARRY[207]) );
FULL_ADDER FA_179 (.DATA_A (INT_SUM[266]) , .DATA_B (INT_CARRY[189]) , .DATA_C (INT_CARRY[190]) , .SAVE (INT_SUM[268]) , .CARRY (INT_CARRY[208]) );
assign INT_SUM[269] = INT_CARRY[191];
FULL_ADDER FA_180 (.DATA_A (INT_SUM[267]) , .DATA_B (INT_SUM[268]) , .DATA_C (INT_SUM[269]) , .SAVE (INT_SUM[270]) , .CARRY (INT_CARRY[209]) );
HALF_ADDER HA_27 (.DATA_A (INT_CARRY[192]) , .DATA_B (INT_CARRY[193]) , .SAVE (INT_SUM[272]) , .CARRY (INT_CARRY[211]) );
FLIPFLOP LA_69 (.DIN (INT_SUM[270]) , .RST(RST), .CLK (CLK) , .DOUT (INT_SUM[271]) );
FLIPFLOP LA_70 (.DIN (INT_SUM[272]) , .RST(RST), .CLK (CLK) , .DOUT (INT_SUM[273]) );
FLIPFLOP LA_71 (.DIN (INT_CARRY[194]) , .RST(RST), .CLK (CLK) , .DOUT (INT_CARRY[195]) );
FULL_ADDER FA_181 (.DATA_A (INT_SUM[271]) , .DATA_B (INT_SUM[273]) , .DATA_C (INT_CARRY[195]) , .SAVE (INT_SUM[274]) , .CARRY (INT_CARRY[213]) );
FLIPFLOP LA_72 (.DIN (INT_CARRY[196]) , .RST(RST), .CLK (CLK) , .DOUT (INT_CARRY[197]) );
assign INT_SUM[275] = INT_CARRY[197];
FULL_ADDER FA_182 (.DATA_A (INT_SUM[274]) , .DATA_B (INT_SUM[275]) , .DATA_C (INT_CARRY[198]) , .SAVE (SUM[29]) , .CARRY (CARRY[29]) );
FULL_ADDER FA_183 (.DATA_A (SUMMAND[255]) , .DATA_B (SUMMAND[256]) , .DATA_C (SUMMAND[257]) , .SAVE (INT_SUM[276]) , .CARRY (INT_CARRY[214]) );
FULL_ADDER FA_184 (.DATA_A (SUMMAND[258]) , .DATA_B (SUMMAND[259]) , .DATA_C (SUMMAND[260]) , .SAVE (INT_SUM[277]) , .CARRY (INT_CARRY[215]) );
FULL_ADDER FA_185 (.DATA_A (SUMMAND[261]) , .DATA_B (SUMMAND[262]) , .DATA_C (SUMMAND[263]) , .SAVE (INT_SUM[278]) , .CARRY (INT_CARRY[216]) );
FULL_ADDER FA_186 (.DATA_A (SUMMAND[264]) , .DATA_B (SUMMAND[265]) , .DATA_C (SUMMAND[266]) , .SAVE (INT_SUM[279]) , .CARRY (INT_CARRY[217]) );
FULL_ADDER FA_187 (.DATA_A (SUMMAND[267]) , .DATA_B (SUMMAND[268]) , .DATA_C (SUMMAND[269]) , .SAVE (INT_SUM[280]) , .CARRY (INT_CARRY[218]) );
assign INT_SUM[281] = SUMMAND[270];
assign INT_SUM[282] = SUMMAND[271];
FULL_ADDER FA_188 (.DATA_A (INT_SUM[276]) , .DATA_B (INT_SUM[277]) , .DATA_C (INT_SUM[278]) , .SAVE (INT_SUM[283]) , .CARRY (INT_CARRY[219]) );
FULL_ADDER FA_189 (.DATA_A (INT_SUM[279]) , .DATA_B (INT_SUM[280]) , .DATA_C (INT_SUM[281]) , .SAVE (INT_SUM[284]) , .CARRY (INT_CARRY[220]) );
FULL_ADDER FA_190 (.DATA_A (INT_SUM[282]) , .DATA_B (INT_CARRY[199]) , .DATA_C (INT_CARRY[200]) , .SAVE (INT_SUM[285]) , .CARRY (INT_CARRY[221]) );
FULL_ADDER FA_191 (.DATA_A (INT_CARRY[201]) , .DATA_B (INT_CARRY[202]) , .DATA_C (INT_CARRY[203]) , .SAVE (INT_SUM[286]) , .CARRY (INT_CARRY[222]) );
FULL_ADDER FA_192 (.DATA_A (INT_SUM[283]) , .DATA_B (INT_SUM[284]) , .DATA_C (INT_SUM[285]) , .SAVE (INT_SUM[287]) , .CARRY (INT_CARRY[223]) );
FULL_ADDER FA_193 (.DATA_A (INT_SUM[286]) , .DATA_B (INT_CARRY[204]) , .DATA_C (INT_CARRY[205]) , .SAVE (INT_SUM[288]) , .CARRY (INT_CARRY[224]) );
assign INT_SUM[289] = INT_CARRY[206];
FULL_ADDER FA_194 (.DATA_A (INT_SUM[287]) , .DATA_B (INT_SUM[288]) , .DATA_C (INT_SUM[289]) , .SAVE (INT_SUM[290]) , .CARRY (INT_CARRY[225]) );
HALF_ADDER HA_28 (.DATA_A (INT_CARRY[207]) , .DATA_B (INT_CARRY[208]) , .SAVE (INT_SUM[292]) , .CARRY (INT_CARRY[227]) );
FLIPFLOP LA_73 (.DIN (INT_SUM[290]) , .RST(RST), .CLK (CLK) , .DOUT (INT_SUM[291]) );
FLIPFLOP LA_74 (.DIN (INT_SUM[292]) , .RST(RST), .CLK (CLK) , .DOUT (INT_SUM[293]) );
FLIPFLOP LA_75 (.DIN (INT_CARRY[209]) , .RST(RST), .CLK (CLK) , .DOUT (INT_CARRY[210]) );
FULL_ADDER FA_195 (.DATA_A (INT_SUM[291]) , .DATA_B (INT_SUM[293]) , .DATA_C (INT_CARRY[210]) , .SAVE (INT_SUM[294]) , .CARRY (INT_CARRY[229]) );
FLIPFLOP LA_76 (.DIN (INT_CARRY[211]) , .RST(RST), .CLK (CLK) , .DOUT (INT_CARRY[212]) );
assign INT_SUM[295] = INT_CARRY[212];
FULL_ADDER FA_196 (.DATA_A (INT_SUM[294]) , .DATA_B (INT_SUM[295]) , .DATA_C (INT_CARRY[213]) , .SAVE (SUM[30]) , .CARRY (CARRY[30]) );
FULL_ADDER FA_197 (.DATA_A (SUMMAND[272]) , .DATA_B (SUMMAND[273]) , .DATA_C (SUMMAND[274]) , .SAVE (INT_SUM[296]) , .CARRY (INT_CARRY[230]) );
FULL_ADDER FA_198 (.DATA_A (SUMMAND[275]) , .DATA_B (SUMMAND[276]) , .DATA_C (SUMMAND[277]) , .SAVE (INT_SUM[297]) , .CARRY (INT_CARRY[231]) );
FULL_ADDER FA_199 (.DATA_A (SUMMAND[278]) , .DATA_B (SUMMAND[279]) , .DATA_C (SUMMAND[280]) , .SAVE (INT_SUM[298]) , .CARRY (INT_CARRY[232]) );
FULL_ADDER FA_200 (.DATA_A (SUMMAND[281]) , .DATA_B (SUMMAND[282]) , .DATA_C (SUMMAND[283]) , .SAVE (INT_SUM[299]) , .CARRY (INT_CARRY[233]) );
FULL_ADDER FA_201 (.DATA_A (SUMMAND[284]) , .DATA_B (SUMMAND[285]) , .DATA_C (SUMMAND[286]) , .SAVE (INT_SUM[300]) , .CARRY (INT_CARRY[234]) );
assign INT_SUM[301] = SUMMAND[287];
FULL_ADDER FA_202 (.DATA_A (INT_SUM[296]) , .DATA_B (INT_SUM[297]) , .DATA_C (INT_SUM[298]) , .SAVE (INT_SUM[302]) , .CARRY (INT_CARRY[235]) );
FULL_ADDER FA_203 (.DATA_A (INT_SUM[299]) , .DATA_B (INT_SUM[300]) , .DATA_C (INT_SUM[301]) , .SAVE (INT_SUM[303]) , .CARRY (INT_CARRY[236]) );
FULL_ADDER FA_204 (.DATA_A (INT_CARRY[214]) , .DATA_B (INT_CARRY[215]) , .DATA_C (INT_CARRY[216]) , .SAVE (INT_SUM[304]) , .CARRY (INT_CARRY[237]) );
assign INT_SUM[305] = INT_CARRY[217];
assign INT_SUM[306] = INT_CARRY[218];
FULL_ADDER FA_205 (.DATA_A (INT_SUM[302]) , .DATA_B (INT_SUM[303]) , .DATA_C (INT_SUM[304]) , .SAVE (INT_SUM[307]) , .CARRY (INT_CARRY[238]) );
FULL_ADDER FA_206 (.DATA_A (INT_SUM[305]) , .DATA_B (INT_SUM[306]) , .DATA_C (INT_CARRY[219]) , .SAVE (INT_SUM[308]) , .CARRY (INT_CARRY[239]) );
FULL_ADDER FA_207 (.DATA_A (INT_CARRY[220]) , .DATA_B (INT_CARRY[221]) , .DATA_C (INT_CARRY[222]) , .SAVE (INT_SUM[309]) , .CARRY (INT_CARRY[240]) );
FULL_ADDER FA_208 (.DATA_A (INT_SUM[307]) , .DATA_B (INT_SUM[308]) , .DATA_C (INT_SUM[309]) , .SAVE (INT_SUM[310]) , .CARRY (INT_CARRY[241]) );
HALF_ADDER HA_29 (.DATA_A (INT_CARRY[223]) , .DATA_B (INT_CARRY[224]) , .SAVE (INT_SUM[312]) , .CARRY (INT_CARRY[243]) );
FLIPFLOP LA_77 (.DIN (INT_SUM[310]) , .RST(RST), .CLK (CLK) , .DOUT (INT_SUM[311]) );
FLIPFLOP LA_78 (.DIN (INT_SUM[312]) , .RST(RST), .CLK (CLK) , .DOUT (INT_SUM[313]) );
FLIPFLOP LA_79 (.DIN (INT_CARRY[225]) , .RST(RST), .CLK (CLK) , .DOUT (INT_CARRY[226]) );
FULL_ADDER FA_209 (.DATA_A (INT_SUM[311]) , .DATA_B (INT_SUM[313]) , .DATA_C (INT_CARRY[226]) , .SAVE (INT_SUM[314]) , .CARRY (INT_CARRY[245]) );
FLIPFLOP LA_80 (.DIN (INT_CARRY[227]) , .RST(RST), .CLK (CLK) , .DOUT (INT_CARRY[228]) );
assign INT_SUM[315] = INT_CARRY[228];
FULL_ADDER FA_210 (.DATA_A (INT_SUM[314]) , .DATA_B (INT_SUM[315]) , .DATA_C (INT_CARRY[229]) , .SAVE (SUM[31]) , .CARRY (CARRY[31]) );
FULL_ADDER FA_211 (.DATA_A (SUMMAND[288]) , .DATA_B (SUMMAND[289]) , .DATA_C (SUMMAND[290]) , .SAVE (INT_SUM[316]) , .CARRY (INT_CARRY[246]) );
FULL_ADDER FA_212 (.DATA_A (SUMMAND[291]) , .DATA_B (SUMMAND[292]) , .DATA_C (SUMMAND[293]) , .SAVE (INT_SUM[317]) , .CARRY (INT_CARRY[247]) );
FULL_ADDER FA_213 (.DATA_A (SUMMAND[294]) , .DATA_B (SUMMAND[295]) , .DATA_C (SUMMAND[296]) , .SAVE (INT_SUM[318]) , .CARRY (INT_CARRY[248]) );
FULL_ADDER FA_214 (.DATA_A (SUMMAND[297]) , .DATA_B (SUMMAND[298]) , .DATA_C (SUMMAND[299]) , .SAVE (INT_SUM[319]) , .CARRY (INT_CARRY[249]) );
FULL_ADDER FA_215 (.DATA_A (SUMMAND[300]) , .DATA_B (SUMMAND[301]) , .DATA_C (SUMMAND[302]) , .SAVE (INT_SUM[320]) , .CARRY (INT_CARRY[250]) );
assign INT_SUM[321] = SUMMAND[303];
FULL_ADDER FA_216 (.DATA_A (INT_SUM[316]) , .DATA_B (INT_SUM[317]) , .DATA_C (INT_SUM[318]) , .SAVE (INT_SUM[322]) , .CARRY (INT_CARRY[251]) );
FULL_ADDER FA_217 (.DATA_A (INT_SUM[319]) , .DATA_B (INT_SUM[320]) , .DATA_C (INT_SUM[321]) , .SAVE (INT_SUM[323]) , .CARRY (INT_CARRY[252]) );
FULL_ADDER FA_218 (.DATA_A (INT_CARRY[230]) , .DATA_B (INT_CARRY[231]) , .DATA_C (INT_CARRY[232]) , .SAVE (INT_SUM[324]) , .CARRY (INT_CARRY[253]) );
HALF_ADDER HA_30 (.DATA_A (INT_CARRY[233]) , .DATA_B (INT_CARRY[234]) , .SAVE (INT_SUM[325]) , .CARRY (INT_CARRY[254]) );
FULL_ADDER FA_219 (.DATA_A (INT_SUM[322]) , .DATA_B (INT_SUM[323]) , .DATA_C (INT_SUM[324]) , .SAVE (INT_SUM[326]) , .CARRY (INT_CARRY[255]) );
FULL_ADDER FA_220 (.DATA_A (INT_SUM[325]) , .DATA_B (INT_CARRY[235]) , .DATA_C (INT_CARRY[236]) , .SAVE (INT_SUM[327]) , .CARRY (INT_CARRY[256]) );
assign INT_SUM[328] = INT_CARRY[237];
FULL_ADDER FA_221 (.DATA_A (INT_SUM[326]) , .DATA_B (INT_SUM[327]) , .DATA_C (INT_SUM[328]) , .SAVE (INT_SUM[329]) , .CARRY (INT_CARRY[257]) );
FULL_ADDER FA_222 (.DATA_A (INT_CARRY[238]) , .DATA_B (INT_CARRY[239]) , .DATA_C (INT_CARRY[240]) , .SAVE (INT_SUM[331]) , .CARRY (INT_CARRY[259]) );
FLIPFLOP LA_81 (.DIN (INT_SUM[329]) , .RST(RST), .CLK (CLK) , .DOUT (INT_SUM[330]) );
FLIPFLOP LA_82 (.DIN (INT_SUM[331]) , .RST(RST), .CLK (CLK) , .DOUT (INT_SUM[332]) );
FLIPFLOP LA_83 (.DIN (INT_CARRY[241]) , .RST(RST), .CLK (CLK) , .DOUT (INT_CARRY[242]) );
FULL_ADDER FA_223 (.DATA_A (INT_SUM[330]) , .DATA_B (INT_SUM[332]) , .DATA_C (INT_CARRY[242]) , .SAVE (INT_SUM[333]) , .CARRY (INT_CARRY[261]) );
FLIPFLOP LA_84 (.DIN (INT_CARRY[243]) , .RST(RST), .CLK (CLK) , .DOUT (INT_CARRY[244]) );
assign INT_SUM[334] = INT_CARRY[244];
FULL_ADDER FA_224 (.DATA_A (INT_SUM[333]) , .DATA_B (INT_SUM[334]) , .DATA_C (INT_CARRY[245]) , .SAVE (SUM[32]) , .CARRY (CARRY[32]) );
FULL_ADDER FA_225 (.DATA_A (SUMMAND[304]) , .DATA_B (SUMMAND[305]) , .DATA_C (SUMMAND[306]) , .SAVE (INT_SUM[335]) , .CARRY (INT_CARRY[262]) );
FULL_ADDER FA_226 (.DATA_A (SUMMAND[307]) , .DATA_B (SUMMAND[308]) , .DATA_C (SUMMAND[309]) , .SAVE (INT_SUM[336]) , .CARRY (INT_CARRY[263]) );
FULL_ADDER FA_227 (.DATA_A (SUMMAND[310]) , .DATA_B (SUMMAND[311]) , .DATA_C (SUMMAND[312]) , .SAVE (INT_SUM[337]) , .CARRY (INT_CARRY[264]) );
FULL_ADDER FA_228 (.DATA_A (SUMMAND[313]) , .DATA_B (SUMMAND[314]) , .DATA_C (SUMMAND[315]) , .SAVE (INT_SUM[338]) , .CARRY (INT_CARRY[265]) );
FULL_ADDER FA_229 (.DATA_A (SUMMAND[316]) , .DATA_B (SUMMAND[317]) , .DATA_C (SUMMAND[318]) , .SAVE (INT_SUM[339]) , .CARRY (INT_CARRY[266]) );
assign INT_SUM[340] = SUMMAND[319];
assign INT_SUM[341] = SUMMAND[320];
FULL_ADDER FA_230 (.DATA_A (INT_SUM[335]) , .DATA_B (INT_SUM[336]) , .DATA_C (INT_SUM[337]) , .SAVE (INT_SUM[342]) , .CARRY (INT_CARRY[267]) );
FULL_ADDER FA_231 (.DATA_A (INT_SUM[338]) , .DATA_B (INT_SUM[339]) , .DATA_C (INT_SUM[340]) , .SAVE (INT_SUM[343]) , .CARRY (INT_CARRY[268]) );
FULL_ADDER FA_232 (.DATA_A (INT_SUM[341]) , .DATA_B (INT_CARRY[246]) , .DATA_C (INT_CARRY[247]) , .SAVE (INT_SUM[344]) , .CARRY (INT_CARRY[269]) );
FULL_ADDER FA_233 (.DATA_A (INT_CARRY[248]) , .DATA_B (INT_CARRY[249]) , .DATA_C (INT_CARRY[250]) , .SAVE (INT_SUM[345]) , .CARRY (INT_CARRY[270]) );
FULL_ADDER FA_234 (.DATA_A (INT_SUM[342]) , .DATA_B (INT_SUM[343]) , .DATA_C (INT_SUM[344]) , .SAVE (INT_SUM[346]) , .CARRY (INT_CARRY[271]) );
FULL_ADDER FA_235 (.DATA_A (INT_SUM[345]) , .DATA_B (INT_CARRY[251]) , .DATA_C (INT_CARRY[252]) , .SAVE (INT_SUM[347]) , .CARRY (INT_CARRY[272]) );
assign INT_SUM[348] = INT_CARRY[253];
assign INT_SUM[349] = INT_CARRY[254];
FULL_ADDER FA_236 (.DATA_A (INT_SUM[346]) , .DATA_B (INT_SUM[347]) , .DATA_C (INT_SUM[348]) , .SAVE (INT_SUM[350]) , .CARRY (INT_CARRY[273]) );
FULL_ADDER FA_237 (.DATA_A (INT_SUM[349]) , .DATA_B (INT_CARRY[255]) , .DATA_C (INT_CARRY[256]) , .SAVE (INT_SUM[352]) , .CARRY (INT_CARRY[275]) );
FLIPFLOP LA_85 (.DIN (INT_SUM[350]) , .RST(RST), .CLK (CLK) , .DOUT (INT_SUM[351]) );
FLIPFLOP LA_86 (.DIN (INT_SUM[352]) , .RST(RST), .CLK (CLK) , .DOUT (INT_SUM[353]) );
FLIPFLOP LA_87 (.DIN (INT_CARRY[257]) , .RST(RST), .CLK (CLK) , .DOUT (INT_CARRY[258]) );
FULL_ADDER FA_238 (.DATA_A (INT_SUM[351]) , .DATA_B (INT_SUM[353]) , .DATA_C (INT_CARRY[258]) , .SAVE (INT_SUM[354]) , .CARRY (INT_CARRY[277]) );
FLIPFLOP LA_88 (.DIN (INT_CARRY[259]) , .RST(RST), .CLK (CLK) , .DOUT (INT_CARRY[260]) );
assign INT_SUM[355] = INT_CARRY[260];
FULL_ADDER FA_239 (.DATA_A (INT_SUM[354]) , .DATA_B (INT_SUM[355]) , .DATA_C (INT_CARRY[261]) , .SAVE (SUM[33]) , .CARRY (CARRY[33]) );
FULL_ADDER FA_240 (.DATA_A (SUMMAND[321]) , .DATA_B (SUMMAND[322]) , .DATA_C (SUMMAND[323]) , .SAVE (INT_SUM[356]) , .CARRY (INT_CARRY[278]) );
FULL_ADDER FA_241 (.DATA_A (SUMMAND[324]) , .DATA_B (SUMMAND[325]) , .DATA_C (SUMMAND[326]) , .SAVE (INT_SUM[357]) , .CARRY (INT_CARRY[279]) );
FULL_ADDER FA_242 (.DATA_A (SUMMAND[327]) , .DATA_B (SUMMAND[328]) , .DATA_C (SUMMAND[329]) , .SAVE (INT_SUM[358]) , .CARRY (INT_CARRY[280]) );
FULL_ADDER FA_243 (.DATA_A (SUMMAND[330]) , .DATA_B (SUMMAND[331]) , .DATA_C (SUMMAND[332]) , .SAVE (INT_SUM[359]) , .CARRY (INT_CARRY[281]) );
FULL_ADDER FA_244 (.DATA_A (SUMMAND[333]) , .DATA_B (SUMMAND[334]) , .DATA_C (SUMMAND[335]) , .SAVE (INT_SUM[360]) , .CARRY (INT_CARRY[282]) );
assign INT_SUM[361] = SUMMAND[336];
FULL_ADDER FA_245 (.DATA_A (INT_SUM[356]) , .DATA_B (INT_SUM[357]) , .DATA_C (INT_SUM[358]) , .SAVE (INT_SUM[362]) , .CARRY (INT_CARRY[283]) );
FULL_ADDER FA_246 (.DATA_A (INT_SUM[359]) , .DATA_B (INT_SUM[360]) , .DATA_C (INT_SUM[361]) , .SAVE (INT_SUM[363]) , .CARRY (INT_CARRY[284]) );
FULL_ADDER FA_247 (.DATA_A (INT_CARRY[262]) , .DATA_B (INT_CARRY[263]) , .DATA_C (INT_CARRY[264]) , .SAVE (INT_SUM[364]) , .CARRY (INT_CARRY[285]) );
assign INT_SUM[365] = INT_CARRY[265];
assign INT_SUM[366] = INT_CARRY[266];
FULL_ADDER FA_248 (.DATA_A (INT_SUM[362]) , .DATA_B (INT_SUM[363]) , .DATA_C (INT_SUM[364]) , .SAVE (INT_SUM[367]) , .CARRY (INT_CARRY[286]) );
FULL_ADDER FA_249 (.DATA_A (INT_SUM[365]) , .DATA_B (INT_SUM[366]) , .DATA_C (INT_CARRY[267]) , .SAVE (INT_SUM[368]) , .CARRY (INT_CARRY[287]) );
FULL_ADDER FA_250 (.DATA_A (INT_CARRY[268]) , .DATA_B (INT_CARRY[269]) , .DATA_C (INT_CARRY[270]) , .SAVE (INT_SUM[369]) , .CARRY (INT_CARRY[288]) );
FULL_ADDER FA_251 (.DATA_A (INT_SUM[367]) , .DATA_B (INT_SUM[368]) , .DATA_C (INT_SUM[369]) , .SAVE (INT_SUM[370]) , .CARRY (INT_CARRY[289]) );
HALF_ADDER HA_31 (.DATA_A (INT_CARRY[271]) , .DATA_B (INT_CARRY[272]) , .SAVE (INT_SUM[372]) , .CARRY (INT_CARRY[291]) );
FLIPFLOP LA_89 (.DIN (INT_SUM[370]) , .RST(RST), .CLK (CLK) , .DOUT (INT_SUM[371]) );
FLIPFLOP LA_90 (.DIN (INT_SUM[372]) , .RST(RST), .CLK (CLK) , .DOUT (INT_SUM[373]) );
FLIPFLOP LA_91 (.DIN (INT_CARRY[273]) , .RST(RST), .CLK (CLK) , .DOUT (INT_CARRY[274]) );
FULL_ADDER FA_252 (.DATA_A (INT_SUM[371]) , .DATA_B (INT_SUM[373]) , .DATA_C (INT_CARRY[274]) , .SAVE (INT_SUM[374]) , .CARRY (INT_CARRY[293]) );
FLIPFLOP LA_92 (.DIN (INT_CARRY[275]) , .RST(RST), .CLK (CLK) , .DOUT (INT_CARRY[276]) );
assign INT_SUM[375] = INT_CARRY[276];
FULL_ADDER FA_253 (.DATA_A (INT_SUM[374]) , .DATA_B (INT_SUM[375]) , .DATA_C (INT_CARRY[277]) , .SAVE (SUM[34]) , .CARRY (CARRY[34]) );
FULL_ADDER FA_254 (.DATA_A (SUMMAND[337]) , .DATA_B (SUMMAND[338]) , .DATA_C (SUMMAND[339]) , .SAVE (INT_SUM[376]) , .CARRY (INT_CARRY[294]) );
FULL_ADDER FA_255 (.DATA_A (SUMMAND[340]) , .DATA_B (SUMMAND[341]) , .DATA_C (SUMMAND[342]) , .SAVE (INT_SUM[377]) , .CARRY (INT_CARRY[295]) );
FULL_ADDER FA_256 (.DATA_A (SUMMAND[343]) , .DATA_B (SUMMAND[344]) , .DATA_C (SUMMAND[345]) , .SAVE (INT_SUM[378]) , .CARRY (INT_CARRY[296]) );
FULL_ADDER FA_257 (.DATA_A (SUMMAND[346]) , .DATA_B (SUMMAND[347]) , .DATA_C (SUMMAND[348]) , .SAVE (INT_SUM[379]) , .CARRY (INT_CARRY[297]) );
FULL_ADDER FA_258 (.DATA_A (SUMMAND[349]) , .DATA_B (SUMMAND[350]) , .DATA_C (SUMMAND[351]) , .SAVE (INT_SUM[380]) , .CARRY (INT_CARRY[298]) );
FULL_ADDER FA_259 (.DATA_A (INT_SUM[376]) , .DATA_B (INT_SUM[377]) , .DATA_C (INT_SUM[378]) , .SAVE (INT_SUM[381]) , .CARRY (INT_CARRY[299]) );
FULL_ADDER FA_260 (.DATA_A (INT_SUM[379]) , .DATA_B (INT_SUM[380]) , .DATA_C (INT_CARRY[278]) , .SAVE (INT_SUM[382]) , .CARRY (INT_CARRY[300]) );
FULL_ADDER FA_261 (.DATA_A (INT_CARRY[279]) , .DATA_B (INT_CARRY[280]) , .DATA_C (INT_CARRY[281]) , .SAVE (INT_SUM[383]) , .CARRY (INT_CARRY[301]) );
assign INT_SUM[384] = INT_CARRY[282];
FULL_ADDER FA_262 (.DATA_A (INT_SUM[381]) , .DATA_B (INT_SUM[382]) , .DATA_C (INT_SUM[383]) , .SAVE (INT_SUM[385]) , .CARRY (INT_CARRY[302]) );
FULL_ADDER FA_263 (.DATA_A (INT_SUM[384]) , .DATA_B (INT_CARRY[283]) , .DATA_C (INT_CARRY[284]) , .SAVE (INT_SUM[386]) , .CARRY (INT_CARRY[303]) );
assign INT_SUM[387] = INT_CARRY[285];
FULL_ADDER FA_264 (.DATA_A (INT_SUM[385]) , .DATA_B (INT_SUM[386]) , .DATA_C (INT_SUM[387]) , .SAVE (INT_SUM[388]) , .CARRY (INT_CARRY[304]) );
FULL_ADDER FA_265 (.DATA_A (INT_CARRY[286]) , .DATA_B (INT_CARRY[287]) , .DATA_C (INT_CARRY[288]) , .SAVE (INT_SUM[390]) , .CARRY (INT_CARRY[306]) );
FLIPFLOP LA_93 (.DIN (INT_SUM[388]) , .RST(RST), .CLK (CLK) , .DOUT (INT_SUM[389]) );
FLIPFLOP LA_94 (.DIN (INT_SUM[390]) , .RST(RST), .CLK (CLK) , .DOUT (INT_SUM[391]) );
FLIPFLOP LA_95 (.DIN (INT_CARRY[289]) , .RST(RST), .CLK (CLK) , .DOUT (INT_CARRY[290]) );
FULL_ADDER FA_266 (.DATA_A (INT_SUM[389]) , .DATA_B (INT_SUM[391]) , .DATA_C (INT_CARRY[290]) , .SAVE (INT_SUM[392]) , .CARRY (INT_CARRY[308]) );
FLIPFLOP LA_96 (.DIN (INT_CARRY[291]) , .RST(RST), .CLK (CLK) , .DOUT (INT_CARRY[292]) );
assign INT_SUM[393] = INT_CARRY[292];
FULL_ADDER FA_267 (.DATA_A (INT_SUM[392]) , .DATA_B (INT_SUM[393]) , .DATA_C (INT_CARRY[293]) , .SAVE (SUM[35]) , .CARRY (CARRY[35]) );
FULL_ADDER FA_268 (.DATA_A (SUMMAND[352]) , .DATA_B (SUMMAND[353]) , .DATA_C (SUMMAND[354]) , .SAVE (INT_SUM[394]) , .CARRY (INT_CARRY[309]) );
FULL_ADDER FA_269 (.DATA_A (SUMMAND[355]) , .DATA_B (SUMMAND[356]) , .DATA_C (SUMMAND[357]) , .SAVE (INT_SUM[395]) , .CARRY (INT_CARRY[310]) );
FULL_ADDER FA_270 (.DATA_A (SUMMAND[358]) , .DATA_B (SUMMAND[359]) , .DATA_C (SUMMAND[360]) , .SAVE (INT_SUM[396]) , .CARRY (INT_CARRY[311]) );
FULL_ADDER FA_271 (.DATA_A (SUMMAND[361]) , .DATA_B (SUMMAND[362]) , .DATA_C (SUMMAND[363]) , .SAVE (INT_SUM[397]) , .CARRY (INT_CARRY[312]) );
FULL_ADDER FA_272 (.DATA_A (SUMMAND[364]) , .DATA_B (SUMMAND[365]) , .DATA_C (SUMMAND[366]) , .SAVE (INT_SUM[398]) , .CARRY (INT_CARRY[313]) );
FULL_ADDER FA_273 (.DATA_A (INT_SUM[394]) , .DATA_B (INT_SUM[395]) , .DATA_C (INT_SUM[396]) , .SAVE (INT_SUM[399]) , .CARRY (INT_CARRY[314]) );
FULL_ADDER FA_274 (.DATA_A (INT_SUM[397]) , .DATA_B (INT_SUM[398]) , .DATA_C (INT_CARRY[294]) , .SAVE (INT_SUM[400]) , .CARRY (INT_CARRY[315]) );
FULL_ADDER FA_275 (.DATA_A (INT_CARRY[295]) , .DATA_B (INT_CARRY[296]) , .DATA_C (INT_CARRY[297]) , .SAVE (INT_SUM[401]) , .CARRY (INT_CARRY[316]) );
assign INT_SUM[402] = INT_CARRY[298];
FULL_ADDER FA_276 (.DATA_A (INT_SUM[399]) , .DATA_B (INT_SUM[400]) , .DATA_C (INT_SUM[401]) , .SAVE (INT_SUM[403]) , .CARRY (INT_CARRY[317]) );
FULL_ADDER FA_277 (.DATA_A (INT_SUM[402]) , .DATA_B (INT_CARRY[299]) , .DATA_C (INT_CARRY[300]) , .SAVE (INT_SUM[404]) , .CARRY (INT_CARRY[318]) );
assign INT_SUM[405] = INT_CARRY[301];
FULL_ADDER FA_278 (.DATA_A (INT_SUM[403]) , .DATA_B (INT_SUM[404]) , .DATA_C (INT_SUM[405]) , .SAVE (INT_SUM[406]) , .CARRY (INT_CARRY[319]) );
HALF_ADDER HA_32 (.DATA_A (INT_CARRY[302]) , .DATA_B (INT_CARRY[303]) , .SAVE (INT_SUM[408]) , .CARRY (INT_CARRY[321]) );
FLIPFLOP LA_97 (.DIN (INT_SUM[406]) , .RST(RST), .CLK (CLK) , .DOUT (INT_SUM[407]) );
FLIPFLOP LA_98 (.DIN (INT_SUM[408]) , .RST(RST), .CLK (CLK) , .DOUT (INT_SUM[409]) );
FLIPFLOP LA_99 (.DIN (INT_CARRY[304]) , .RST(RST), .CLK (CLK) , .DOUT (INT_CARRY[305]) );
FULL_ADDER FA_279 (.DATA_A (INT_SUM[407]) , .DATA_B (INT_SUM[409]) , .DATA_C (INT_CARRY[305]) , .SAVE (INT_SUM[410]) , .CARRY (INT_CARRY[323]) );
FLIPFLOP LA_100 (.DIN (INT_CARRY[306]) , .RST(RST), .CLK (CLK) , .DOUT (INT_CARRY[307]) );
assign INT_SUM[411] = INT_CARRY[307];
FULL_ADDER FA_280 (.DATA_A (INT_SUM[410]) , .DATA_B (INT_SUM[411]) , .DATA_C (INT_CARRY[308]) , .SAVE (SUM[36]) , .CARRY (CARRY[36]) );
FULL_ADDER FA_281 (.DATA_A (SUMMAND[367]) , .DATA_B (SUMMAND[368]) , .DATA_C (SUMMAND[369]) , .SAVE (INT_SUM[412]) , .CARRY (INT_CARRY[324]) );
FULL_ADDER FA_282 (.DATA_A (SUMMAND[370]) , .DATA_B (SUMMAND[371]) , .DATA_C (SUMMAND[372]) , .SAVE (INT_SUM[413]) , .CARRY (INT_CARRY[325]) );
FULL_ADDER FA_283 (.DATA_A (SUMMAND[373]) , .DATA_B (SUMMAND[374]) , .DATA_C (SUMMAND[375]) , .SAVE (INT_SUM[414]) , .CARRY (INT_CARRY[326]) );
FULL_ADDER FA_284 (.DATA_A (SUMMAND[376]) , .DATA_B (SUMMAND[377]) , .DATA_C (SUMMAND[378]) , .SAVE (INT_SUM[415]) , .CARRY (INT_CARRY[327]) );
HALF_ADDER HA_33 (.DATA_A (SUMMAND[379]) , .DATA_B (SUMMAND[380]) , .SAVE (INT_SUM[416]) , .CARRY (INT_CARRY[328]) );
FULL_ADDER FA_285 (.DATA_A (INT_SUM[412]) , .DATA_B (INT_SUM[413]) , .DATA_C (INT_SUM[414]) , .SAVE (INT_SUM[417]) , .CARRY (INT_CARRY[329]) );
FULL_ADDER FA_286 (.DATA_A (INT_SUM[415]) , .DATA_B (INT_SUM[416]) , .DATA_C (INT_CARRY[309]) , .SAVE (INT_SUM[418]) , .CARRY (INT_CARRY[330]) );
FULL_ADDER FA_287 (.DATA_A (INT_CARRY[310]) , .DATA_B (INT_CARRY[311]) , .DATA_C (INT_CARRY[312]) , .SAVE (INT_SUM[419]) , .CARRY (INT_CARRY[331]) );
assign INT_SUM[420] = INT_CARRY[313];
FULL_ADDER FA_288 (.DATA_A (INT_SUM[417]) , .DATA_B (INT_SUM[418]) , .DATA_C (INT_SUM[419]) , .SAVE (INT_SUM[421]) , .CARRY (INT_CARRY[332]) );
FULL_ADDER FA_289 (.DATA_A (INT_SUM[420]) , .DATA_B (INT_CARRY[314]) , .DATA_C (INT_CARRY[315]) , .SAVE (INT_SUM[422]) , .CARRY (INT_CARRY[333]) );
assign INT_SUM[423] = INT_CARRY[316];
FULL_ADDER FA_290 (.DATA_A (INT_SUM[421]) , .DATA_B (INT_SUM[422]) , .DATA_C (INT_SUM[423]) , .SAVE (INT_SUM[424]) , .CARRY (INT_CARRY[334]) );
HALF_ADDER HA_34 (.DATA_A (INT_CARRY[317]) , .DATA_B (INT_CARRY[318]) , .SAVE (INT_SUM[426]) , .CARRY (INT_CARRY[336]) );
FLIPFLOP LA_101 (.DIN (INT_SUM[424]) , .RST(RST), .CLK (CLK) , .DOUT (INT_SUM[425]) );
FLIPFLOP LA_102 (.DIN (INT_SUM[426]) , .RST(RST), .CLK (CLK) , .DOUT (INT_SUM[427]) );
FLIPFLOP LA_103 (.DIN (INT_CARRY[319]) , .RST(RST), .CLK (CLK) , .DOUT (INT_CARRY[320]) );
FULL_ADDER FA_291 (.DATA_A (INT_SUM[425]) , .DATA_B (INT_SUM[427]) , .DATA_C (INT_CARRY[320]) , .SAVE (INT_SUM[428]) , .CARRY (INT_CARRY[338]) );
FLIPFLOP LA_104 (.DIN (INT_CARRY[321]) , .RST(RST), .CLK (CLK) , .DOUT (INT_CARRY[322]) );
assign INT_SUM[429] = INT_CARRY[322];
FULL_ADDER FA_292 (.DATA_A (INT_SUM[428]) , .DATA_B (INT_SUM[429]) , .DATA_C (INT_CARRY[323]) , .SAVE (SUM[37]) , .CARRY (CARRY[37]) );
FULL_ADDER FA_293 (.DATA_A (SUMMAND[381]) , .DATA_B (SUMMAND[382]) , .DATA_C (SUMMAND[383]) , .SAVE (INT_SUM[430]) , .CARRY (INT_CARRY[339]) );
FULL_ADDER FA_294 (.DATA_A (SUMMAND[384]) , .DATA_B (SUMMAND[385]) , .DATA_C (SUMMAND[386]) , .SAVE (INT_SUM[431]) , .CARRY (INT_CARRY[340]) );
FULL_ADDER FA_295 (.DATA_A (SUMMAND[387]) , .DATA_B (SUMMAND[388]) , .DATA_C (SUMMAND[389]) , .SAVE (INT_SUM[432]) , .CARRY (INT_CARRY[341]) );
FULL_ADDER FA_296 (.DATA_A (SUMMAND[390]) , .DATA_B (SUMMAND[391]) , .DATA_C (SUMMAND[392]) , .SAVE (INT_SUM[433]) , .CARRY (INT_CARRY[342]) );
HALF_ADDER HA_35 (.DATA_A (SUMMAND[393]) , .DATA_B (SUMMAND[394]) , .SAVE (INT_SUM[434]) , .CARRY (INT_CARRY[343]) );
FULL_ADDER FA_297 (.DATA_A (INT_SUM[430]) , .DATA_B (INT_SUM[431]) , .DATA_C (INT_SUM[432]) , .SAVE (INT_SUM[435]) , .CARRY (INT_CARRY[344]) );
FULL_ADDER FA_298 (.DATA_A (INT_SUM[433]) , .DATA_B (INT_SUM[434]) , .DATA_C (INT_CARRY[324]) , .SAVE (INT_SUM[436]) , .CARRY (INT_CARRY[345]) );
FULL_ADDER FA_299 (.DATA_A (INT_CARRY[325]) , .DATA_B (INT_CARRY[326]) , .DATA_C (INT_CARRY[327]) , .SAVE (INT_SUM[437]) , .CARRY (INT_CARRY[346]) );
assign INT_SUM[438] = INT_CARRY[328];
FULL_ADDER FA_300 (.DATA_A (INT_SUM[435]) , .DATA_B (INT_SUM[436]) , .DATA_C (INT_SUM[437]) , .SAVE (INT_SUM[439]) , .CARRY (INT_CARRY[347]) );
FULL_ADDER FA_301 (.DATA_A (INT_SUM[438]) , .DATA_B (INT_CARRY[329]) , .DATA_C (INT_CARRY[330]) , .SAVE (INT_SUM[440]) , .CARRY (INT_CARRY[348]) );
assign INT_SUM[441] = INT_CARRY[331];
FULL_ADDER FA_302 (.DATA_A (INT_SUM[439]) , .DATA_B (INT_SUM[440]) , .DATA_C (INT_SUM[441]) , .SAVE (INT_SUM[442]) , .CARRY (INT_CARRY[349]) );
HALF_ADDER HA_36 (.DATA_A (INT_CARRY[332]) , .DATA_B (INT_CARRY[333]) , .SAVE (INT_SUM[444]) , .CARRY (INT_CARRY[351]) );
FLIPFLOP LA_105 (.DIN (INT_SUM[442]) , .RST(RST), .CLK (CLK) , .DOUT (INT_SUM[443]) );
FLIPFLOP LA_106 (.DIN (INT_SUM[444]) , .RST(RST), .CLK (CLK) , .DOUT (INT_SUM[445]) );
FLIPFLOP LA_107 (.DIN (INT_CARRY[334]) , .RST(RST), .CLK (CLK) , .DOUT (INT_CARRY[335]) );
FULL_ADDER FA_303 (.DATA_A (INT_SUM[443]) , .DATA_B (INT_SUM[445]) , .DATA_C (INT_CARRY[335]) , .SAVE (INT_SUM[446]) , .CARRY (INT_CARRY[353]) );
FLIPFLOP LA_108 (.DIN (INT_CARRY[336]) , .RST(RST), .CLK (CLK) , .DOUT (INT_CARRY[337]) );
assign INT_SUM[447] = INT_CARRY[337];
FULL_ADDER FA_304 (.DATA_A (INT_SUM[446]) , .DATA_B (INT_SUM[447]) , .DATA_C (INT_CARRY[338]) , .SAVE (SUM[38]) , .CARRY (CARRY[38]) );
FULL_ADDER FA_305 (.DATA_A (SUMMAND[395]) , .DATA_B (SUMMAND[396]) , .DATA_C (SUMMAND[397]) , .SAVE (INT_SUM[448]) , .CARRY (INT_CARRY[354]) );
FULL_ADDER FA_306 (.DATA_A (SUMMAND[398]) , .DATA_B (SUMMAND[399]) , .DATA_C (SUMMAND[400]) , .SAVE (INT_SUM[449]) , .CARRY (INT_CARRY[355]) );
FULL_ADDER FA_307 (.DATA_A (SUMMAND[401]) , .DATA_B (SUMMAND[402]) , .DATA_C (SUMMAND[403]) , .SAVE (INT_SUM[450]) , .CARRY (INT_CARRY[356]) );
FULL_ADDER FA_308 (.DATA_A (SUMMAND[404]) , .DATA_B (SUMMAND[405]) , .DATA_C (SUMMAND[406]) , .SAVE (INT_SUM[451]) , .CARRY (INT_CARRY[357]) );
assign INT_SUM[452] = SUMMAND[407];
FULL_ADDER FA_309 (.DATA_A (INT_SUM[448]) , .DATA_B (INT_SUM[449]) , .DATA_C (INT_SUM[450]) , .SAVE (INT_SUM[453]) , .CARRY (INT_CARRY[358]) );
FULL_ADDER FA_310 (.DATA_A (INT_SUM[451]) , .DATA_B (INT_SUM[452]) , .DATA_C (INT_CARRY[339]) , .SAVE (INT_SUM[454]) , .CARRY (INT_CARRY[359]) );
FULL_ADDER FA_311 (.DATA_A (INT_CARRY[340]) , .DATA_B (INT_CARRY[341]) , .DATA_C (INT_CARRY[342]) , .SAVE (INT_SUM[455]) , .CARRY (INT_CARRY[360]) );
assign INT_SUM[456] = INT_CARRY[343];
FULL_ADDER FA_312 (.DATA_A (INT_SUM[453]) , .DATA_B (INT_SUM[454]) , .DATA_C (INT_SUM[455]) , .SAVE (INT_SUM[457]) , .CARRY (INT_CARRY[361]) );
FULL_ADDER FA_313 (.DATA_A (INT_SUM[456]) , .DATA_B (INT_CARRY[344]) , .DATA_C (INT_CARRY[345]) , .SAVE (INT_SUM[458]) , .CARRY (INT_CARRY[362]) );
assign INT_SUM[459] = INT_CARRY[346];
FULL_ADDER FA_314 (.DATA_A (INT_SUM[457]) , .DATA_B (INT_SUM[458]) , .DATA_C (INT_SUM[459]) , .SAVE (INT_SUM[460]) , .CARRY (INT_CARRY[363]) );
HALF_ADDER HA_37 (.DATA_A (INT_CARRY[347]) , .DATA_B (INT_CARRY[348]) , .SAVE (INT_SUM[462]) , .CARRY (INT_CARRY[365]) );
FLIPFLOP LA_109 (.DIN (INT_SUM[460]) , .RST(RST), .CLK (CLK) , .DOUT (INT_SUM[461]) );
FLIPFLOP LA_110 (.DIN (INT_SUM[462]) , .RST(RST), .CLK (CLK) , .DOUT (INT_SUM[463]) );
FLIPFLOP LA_111 (.DIN (INT_CARRY[349]) , .RST(RST), .CLK (CLK) , .DOUT (INT_CARRY[350]) );
FULL_ADDER FA_315 (.DATA_A (INT_SUM[461]) , .DATA_B (INT_SUM[463]) , .DATA_C (INT_CARRY[350]) , .SAVE (INT_SUM[464]) , .CARRY (INT_CARRY[367]) );
FLIPFLOP LA_112 (.DIN (INT_CARRY[351]) , .RST(RST), .CLK (CLK) , .DOUT (INT_CARRY[352]) );
assign INT_SUM[465] = INT_CARRY[352];
FULL_ADDER FA_316 (.DATA_A (INT_SUM[464]) , .DATA_B (INT_SUM[465]) , .DATA_C (INT_CARRY[353]) , .SAVE (SUM[39]) , .CARRY (CARRY[39]) );
FULL_ADDER FA_317 (.DATA_A (SUMMAND[408]) , .DATA_B (SUMMAND[409]) , .DATA_C (SUMMAND[410]) , .SAVE (INT_SUM[466]) , .CARRY (INT_CARRY[368]) );
FULL_ADDER FA_318 (.DATA_A (SUMMAND[411]) , .DATA_B (SUMMAND[412]) , .DATA_C (SUMMAND[413]) , .SAVE (INT_SUM[467]) , .CARRY (INT_CARRY[369]) );
FULL_ADDER FA_319 (.DATA_A (SUMMAND[414]) , .DATA_B (SUMMAND[415]) , .DATA_C (SUMMAND[416]) , .SAVE (INT_SUM[468]) , .CARRY (INT_CARRY[370]) );
FULL_ADDER FA_320 (.DATA_A (SUMMAND[417]) , .DATA_B (SUMMAND[418]) , .DATA_C (SUMMAND[419]) , .SAVE (INT_SUM[469]) , .CARRY (INT_CARRY[371]) );
FULL_ADDER FA_321 (.DATA_A (SUMMAND[420]) , .DATA_B (INT_CARRY[354]) , .DATA_C (INT_CARRY[355]) , .SAVE (INT_SUM[470]) , .CARRY (INT_CARRY[372]) );
assign INT_SUM[471] = INT_CARRY[356];
assign INT_SUM[472] = INT_CARRY[357];
FULL_ADDER FA_322 (.DATA_A (INT_SUM[466]) , .DATA_B (INT_SUM[467]) , .DATA_C (INT_SUM[468]) , .SAVE (INT_SUM[473]) , .CARRY (INT_CARRY[373]) );
FULL_ADDER FA_323 (.DATA_A (INT_SUM[469]) , .DATA_B (INT_SUM[470]) , .DATA_C (INT_SUM[471]) , .SAVE (INT_SUM[474]) , .CARRY (INT_CARRY[374]) );
FULL_ADDER FA_324 (.DATA_A (INT_SUM[472]) , .DATA_B (INT_CARRY[358]) , .DATA_C (INT_CARRY[359]) , .SAVE (INT_SUM[475]) , .CARRY (INT_CARRY[375]) );
assign INT_SUM[476] = INT_CARRY[360];
FULL_ADDER FA_325 (.DATA_A (INT_SUM[473]) , .DATA_B (INT_SUM[474]) , .DATA_C (INT_SUM[475]) , .SAVE (INT_SUM[477]) , .CARRY (INT_CARRY[376]) );
FULL_ADDER FA_326 (.DATA_A (INT_SUM[476]) , .DATA_B (INT_CARRY[361]) , .DATA_C (INT_CARRY[362]) , .SAVE (INT_SUM[479]) , .CARRY (INT_CARRY[378]) );
FLIPFLOP LA_113 (.DIN (INT_SUM[477]) , .RST(RST), .CLK (CLK) , .DOUT (INT_SUM[478]) );
FLIPFLOP LA_114 (.DIN (INT_SUM[479]) , .RST(RST), .CLK (CLK) , .DOUT (INT_SUM[480]) );
FLIPFLOP LA_115 (.DIN (INT_CARRY[363]) , .RST(RST), .CLK (CLK) , .DOUT (INT_CARRY[364]) );
FULL_ADDER FA_327 (.DATA_A (INT_SUM[478]) , .DATA_B (INT_SUM[480]) , .DATA_C (INT_CARRY[364]) , .SAVE (INT_SUM[481]) , .CARRY (INT_CARRY[380]) );
FLIPFLOP LA_116 (.DIN (INT_CARRY[365]) , .RST(RST), .CLK (CLK) , .DOUT (INT_CARRY[366]) );
assign INT_SUM[482] = INT_CARRY[366];
FULL_ADDER FA_328 (.DATA_A (INT_SUM[481]) , .DATA_B (INT_SUM[482]) , .DATA_C (INT_CARRY[367]) , .SAVE (SUM[40]) , .CARRY (CARRY[40]) );
FULL_ADDER FA_329 (.DATA_A (SUMMAND[421]) , .DATA_B (SUMMAND[422]) , .DATA_C (SUMMAND[423]) , .SAVE (INT_SUM[483]) , .CARRY (INT_CARRY[381]) );
FULL_ADDER FA_330 (.DATA_A (SUMMAND[424]) , .DATA_B (SUMMAND[425]) , .DATA_C (SUMMAND[426]) , .SAVE (INT_SUM[484]) , .CARRY (INT_CARRY[382]) );
FULL_ADDER FA_331 (.DATA_A (SUMMAND[427]) , .DATA_B (SUMMAND[428]) , .DATA_C (SUMMAND[429]) , .SAVE (INT_SUM[485]) , .CARRY (INT_CARRY[383]) );
FULL_ADDER FA_332 (.DATA_A (SUMMAND[430]) , .DATA_B (SUMMAND[431]) , .DATA_C (SUMMAND[432]) , .SAVE (INT_SUM[486]) , .CARRY (INT_CARRY[384]) );
FULL_ADDER FA_333 (.DATA_A (INT_SUM[483]) , .DATA_B (INT_SUM[484]) , .DATA_C (INT_SUM[485]) , .SAVE (INT_SUM[487]) , .CARRY (INT_CARRY[385]) );
FULL_ADDER FA_334 (.DATA_A (INT_SUM[486]) , .DATA_B (INT_CARRY[368]) , .DATA_C (INT_CARRY[369]) , .SAVE (INT_SUM[488]) , .CARRY (INT_CARRY[386]) );
FULL_ADDER FA_335 (.DATA_A (INT_CARRY[370]) , .DATA_B (INT_CARRY[371]) , .DATA_C (INT_CARRY[372]) , .SAVE (INT_SUM[489]) , .CARRY (INT_CARRY[387]) );
FULL_ADDER FA_336 (.DATA_A (INT_SUM[487]) , .DATA_B (INT_SUM[488]) , .DATA_C (INT_SUM[489]) , .SAVE (INT_SUM[490]) , .CARRY (INT_CARRY[388]) );
FULL_ADDER FA_337 (.DATA_A (INT_CARRY[373]) , .DATA_B (INT_CARRY[374]) , .DATA_C (INT_CARRY[375]) , .SAVE (INT_SUM[492]) , .CARRY (INT_CARRY[390]) );
FLIPFLOP LA_117 (.DIN (INT_SUM[490]) , .RST(RST), .CLK (CLK) , .DOUT (INT_SUM[491]) );
FLIPFLOP LA_118 (.DIN (INT_SUM[492]) , .RST(RST), .CLK (CLK) , .DOUT (INT_SUM[493]) );
FLIPFLOP LA_119 (.DIN (INT_CARRY[376]) , .RST(RST), .CLK (CLK) , .DOUT (INT_CARRY[377]) );
FULL_ADDER FA_338 (.DATA_A (INT_SUM[491]) , .DATA_B (INT_SUM[493]) , .DATA_C (INT_CARRY[377]) , .SAVE (INT_SUM[494]) , .CARRY (INT_CARRY[392]) );
FLIPFLOP LA_120 (.DIN (INT_CARRY[378]) , .RST(RST), .CLK (CLK) , .DOUT (INT_CARRY[379]) );
assign INT_SUM[495] = INT_CARRY[379];
FULL_ADDER FA_339 (.DATA_A (INT_SUM[494]) , .DATA_B (INT_SUM[495]) , .DATA_C (INT_CARRY[380]) , .SAVE (SUM[41]) , .CARRY (CARRY[41]) );
FULL_ADDER FA_340 (.DATA_A (SUMMAND[433]) , .DATA_B (SUMMAND[434]) , .DATA_C (SUMMAND[435]) , .SAVE (INT_SUM[496]) , .CARRY (INT_CARRY[393]) );
FULL_ADDER FA_341 (.DATA_A (SUMMAND[436]) , .DATA_B (SUMMAND[437]) , .DATA_C (SUMMAND[438]) , .SAVE (INT_SUM[497]) , .CARRY (INT_CARRY[394]) );
FULL_ADDER FA_342 (.DATA_A (SUMMAND[439]) , .DATA_B (SUMMAND[440]) , .DATA_C (SUMMAND[441]) , .SAVE (INT_SUM[498]) , .CARRY (INT_CARRY[395]) );
FULL_ADDER FA_343 (.DATA_A (SUMMAND[442]) , .DATA_B (SUMMAND[443]) , .DATA_C (SUMMAND[444]) , .SAVE (INT_SUM[499]) , .CARRY (INT_CARRY[396]) );
FULL_ADDER FA_344 (.DATA_A (INT_SUM[496]) , .DATA_B (INT_SUM[497]) , .DATA_C (INT_SUM[498]) , .SAVE (INT_SUM[500]) , .CARRY (INT_CARRY[397]) );
FULL_ADDER FA_345 (.DATA_A (INT_SUM[499]) , .DATA_B (INT_CARRY[381]) , .DATA_C (INT_CARRY[382]) , .SAVE (INT_SUM[501]) , .CARRY (INT_CARRY[398]) );
HALF_ADDER HA_38 (.DATA_A (INT_CARRY[383]) , .DATA_B (INT_CARRY[384]) , .SAVE (INT_SUM[502]) , .CARRY (INT_CARRY[399]) );
FULL_ADDER FA_346 (.DATA_A (INT_SUM[500]) , .DATA_B (INT_SUM[501]) , .DATA_C (INT_SUM[502]) , .SAVE (INT_SUM[503]) , .CARRY (INT_CARRY[400]) );
FULL_ADDER FA_347 (.DATA_A (INT_CARRY[385]) , .DATA_B (INT_CARRY[386]) , .DATA_C (INT_CARRY[387]) , .SAVE (INT_SUM[505]) , .CARRY (INT_CARRY[402]) );
FLIPFLOP LA_121 (.DIN (INT_SUM[503]) , .RST(RST), .CLK (CLK) , .DOUT (INT_SUM[504]) );
FLIPFLOP LA_122 (.DIN (INT_SUM[505]) , .RST(RST), .CLK (CLK) , .DOUT (INT_SUM[506]) );
FLIPFLOP LA_123 (.DIN (INT_CARRY[388]) , .RST(RST), .CLK (CLK) , .DOUT (INT_CARRY[389]) );
FULL_ADDER FA_348 (.DATA_A (INT_SUM[504]) , .DATA_B (INT_SUM[506]) , .DATA_C (INT_CARRY[389]) , .SAVE (INT_SUM[507]) , .CARRY (INT_CARRY[404]) );
FLIPFLOP LA_124 (.DIN (INT_CARRY[390]) , .RST(RST), .CLK (CLK) , .DOUT (INT_CARRY[391]) );
assign INT_SUM[508] = INT_CARRY[391];
FULL_ADDER FA_349 (.DATA_A (INT_SUM[507]) , .DATA_B (INT_SUM[508]) , .DATA_C (INT_CARRY[392]) , .SAVE (SUM[42]) , .CARRY (CARRY[42]) );
FULL_ADDER FA_350 (.DATA_A (SUMMAND[445]) , .DATA_B (SUMMAND[446]) , .DATA_C (SUMMAND[447]) , .SAVE (INT_SUM[509]) , .CARRY (INT_CARRY[405]) );
FULL_ADDER FA_351 (.DATA_A (SUMMAND[448]) , .DATA_B (SUMMAND[449]) , .DATA_C (SUMMAND[450]) , .SAVE (INT_SUM[510]) , .CARRY (INT_CARRY[406]) );
FULL_ADDER FA_352 (.DATA_A (SUMMAND[451]) , .DATA_B (SUMMAND[452]) , .DATA_C (SUMMAND[453]) , .SAVE (INT_SUM[511]) , .CARRY (INT_CARRY[407]) );
assign INT_SUM[512] = SUMMAND[454];
assign INT_SUM[513] = SUMMAND[455];
FULL_ADDER FA_353 (.DATA_A (INT_SUM[509]) , .DATA_B (INT_SUM[510]) , .DATA_C (INT_SUM[511]) , .SAVE (INT_SUM[514]) , .CARRY (INT_CARRY[408]) );
FULL_ADDER FA_354 (.DATA_A (INT_SUM[512]) , .DATA_B (INT_SUM[513]) , .DATA_C (INT_CARRY[393]) , .SAVE (INT_SUM[515]) , .CARRY (INT_CARRY[409]) );
FULL_ADDER FA_355 (.DATA_A (INT_CARRY[394]) , .DATA_B (INT_CARRY[395]) , .DATA_C (INT_CARRY[396]) , .SAVE (INT_SUM[516]) , .CARRY (INT_CARRY[410]) );
FULL_ADDER FA_356 (.DATA_A (INT_SUM[514]) , .DATA_B (INT_SUM[515]) , .DATA_C (INT_SUM[516]) , .SAVE (INT_SUM[517]) , .CARRY (INT_CARRY[411]) );
FULL_ADDER FA_357 (.DATA_A (INT_CARRY[397]) , .DATA_B (INT_CARRY[398]) , .DATA_C (INT_CARRY[399]) , .SAVE (INT_SUM[519]) , .CARRY (INT_CARRY[413]) );
FLIPFLOP LA_125 (.DIN (INT_SUM[517]) , .RST(RST), .CLK (CLK) , .DOUT (INT_SUM[518]) );
FLIPFLOP LA_126 (.DIN (INT_SUM[519]) , .RST(RST), .CLK (CLK) , .DOUT (INT_SUM[520]) );
FLIPFLOP LA_127 (.DIN (INT_CARRY[400]) , .RST(RST), .CLK (CLK) , .DOUT (INT_CARRY[401]) );
FULL_ADDER FA_358 (.DATA_A (INT_SUM[518]) , .DATA_B (INT_SUM[520]) , .DATA_C (INT_CARRY[401]) , .SAVE (INT_SUM[521]) , .CARRY (INT_CARRY[415]) );
FLIPFLOP LA_128 (.DIN (INT_CARRY[402]) , .RST(RST), .CLK (CLK) , .DOUT (INT_CARRY[403]) );
assign INT_SUM[522] = INT_CARRY[403];
FULL_ADDER FA_359 (.DATA_A (INT_SUM[521]) , .DATA_B (INT_SUM[522]) , .DATA_C (INT_CARRY[404]) , .SAVE (SUM[43]) , .CARRY (CARRY[43]) );
FULL_ADDER FA_360 (.DATA_A (SUMMAND[456]) , .DATA_B (SUMMAND[457]) , .DATA_C (SUMMAND[458]) , .SAVE (INT_SUM[523]) , .CARRY (INT_CARRY[416]) );
FULL_ADDER FA_361 (.DATA_A (SUMMAND[459]) , .DATA_B (SUMMAND[460]) , .DATA_C (SUMMAND[461]) , .SAVE (INT_SUM[524]) , .CARRY (INT_CARRY[417]) );
FULL_ADDER FA_362 (.DATA_A (SUMMAND[462]) , .DATA_B (SUMMAND[463]) , .DATA_C (SUMMAND[464]) , .SAVE (INT_SUM[525]) , .CARRY (INT_CARRY[418]) );
HALF_ADDER HA_39 (.DATA_A (SUMMAND[465]) , .DATA_B (SUMMAND[466]) , .SAVE (INT_SUM[526]) , .CARRY (INT_CARRY[419]) );
FULL_ADDER FA_363 (.DATA_A (INT_SUM[523]) , .DATA_B (INT_SUM[524]) , .DATA_C (INT_SUM[525]) , .SAVE (INT_SUM[527]) , .CARRY (INT_CARRY[420]) );
FULL_ADDER FA_364 (.DATA_A (INT_SUM[526]) , .DATA_B (INT_CARRY[405]) , .DATA_C (INT_CARRY[406]) , .SAVE (INT_SUM[528]) , .CARRY (INT_CARRY[421]) );
assign INT_SUM[529] = INT_CARRY[407];
FULL_ADDER FA_365 (.DATA_A (INT_SUM[527]) , .DATA_B (INT_SUM[528]) , .DATA_C (INT_SUM[529]) , .SAVE (INT_SUM[530]) , .CARRY (INT_CARRY[422]) );
FULL_ADDER FA_366 (.DATA_A (INT_CARRY[408]) , .DATA_B (INT_CARRY[409]) , .DATA_C (INT_CARRY[410]) , .SAVE (INT_SUM[532]) , .CARRY (INT_CARRY[424]) );
FLIPFLOP LA_129 (.DIN (INT_SUM[530]) , .RST(RST), .CLK (CLK) , .DOUT (INT_SUM[531]) );
FLIPFLOP LA_130 (.DIN (INT_SUM[532]) , .RST(RST), .CLK (CLK) , .DOUT (INT_SUM[533]) );
FLIPFLOP LA_131 (.DIN (INT_CARRY[411]) , .RST(RST), .CLK (CLK) , .DOUT (INT_CARRY[412]) );
FULL_ADDER FA_367 (.DATA_A (INT_SUM[531]) , .DATA_B (INT_SUM[533]) , .DATA_C (INT_CARRY[412]) , .SAVE (INT_SUM[534]) , .CARRY (INT_CARRY[426]) );
FLIPFLOP LA_132 (.DIN (INT_CARRY[413]) , .RST(RST), .CLK (CLK) , .DOUT (INT_CARRY[414]) );
assign INT_SUM[535] = INT_CARRY[414];
FULL_ADDER FA_368 (.DATA_A (INT_SUM[534]) , .DATA_B (INT_SUM[535]) , .DATA_C (INT_CARRY[415]) , .SAVE (SUM[44]) , .CARRY (CARRY[44]) );
FULL_ADDER FA_369 (.DATA_A (SUMMAND[467]) , .DATA_B (SUMMAND[468]) , .DATA_C (SUMMAND[469]) , .SAVE (INT_SUM[536]) , .CARRY (INT_CARRY[427]) );
FULL_ADDER FA_370 (.DATA_A (SUMMAND[470]) , .DATA_B (SUMMAND[471]) , .DATA_C (SUMMAND[472]) , .SAVE (INT_SUM[537]) , .CARRY (INT_CARRY[428]) );
FULL_ADDER FA_371 (.DATA_A (SUMMAND[473]) , .DATA_B (SUMMAND[474]) , .DATA_C (SUMMAND[475]) , .SAVE (INT_SUM[538]) , .CARRY (INT_CARRY[429]) );
assign INT_SUM[539] = SUMMAND[476];
FULL_ADDER FA_372 (.DATA_A (INT_SUM[536]) , .DATA_B (INT_SUM[537]) , .DATA_C (INT_SUM[538]) , .SAVE (INT_SUM[540]) , .CARRY (INT_CARRY[430]) );
FULL_ADDER FA_373 (.DATA_A (INT_SUM[539]) , .DATA_B (INT_CARRY[416]) , .DATA_C (INT_CARRY[417]) , .SAVE (INT_SUM[541]) , .CARRY (INT_CARRY[431]) );
assign INT_SUM[542] = INT_CARRY[418];
assign INT_SUM[543] = INT_CARRY[419];
FULL_ADDER FA_374 (.DATA_A (INT_SUM[540]) , .DATA_B (INT_SUM[541]) , .DATA_C (INT_SUM[542]) , .SAVE (INT_SUM[544]) , .CARRY (INT_CARRY[432]) );
FULL_ADDER FA_375 (.DATA_A (INT_SUM[543]) , .DATA_B (INT_CARRY[420]) , .DATA_C (INT_CARRY[421]) , .SAVE (INT_SUM[546]) , .CARRY (INT_CARRY[434]) );
FLIPFLOP LA_133 (.DIN (INT_SUM[544]) , .RST(RST), .CLK (CLK) , .DOUT (INT_SUM[545]) );
FLIPFLOP LA_134 (.DIN (INT_SUM[546]) , .RST(RST), .CLK (CLK) , .DOUT (INT_SUM[547]) );
FLIPFLOP LA_135 (.DIN (INT_CARRY[422]) , .RST(RST), .CLK (CLK) , .DOUT (INT_CARRY[423]) );
FULL_ADDER FA_376 (.DATA_A (INT_SUM[545]) , .DATA_B (INT_SUM[547]) , .DATA_C (INT_CARRY[423]) , .SAVE (INT_SUM[548]) , .CARRY (INT_CARRY[436]) );
FLIPFLOP LA_136 (.DIN (INT_CARRY[424]) , .RST(RST), .CLK (CLK) , .DOUT (INT_CARRY[425]) );
assign INT_SUM[549] = INT_CARRY[425];
FULL_ADDER FA_377 (.DATA_A (INT_SUM[548]) , .DATA_B (INT_SUM[549]) , .DATA_C (INT_CARRY[426]) , .SAVE (SUM[45]) , .CARRY (CARRY[45]) );
FULL_ADDER FA_378 (.DATA_A (SUMMAND[477]) , .DATA_B (SUMMAND[478]) , .DATA_C (SUMMAND[479]) , .SAVE (INT_SUM[550]) , .CARRY (INT_CARRY[437]) );
FULL_ADDER FA_379 (.DATA_A (SUMMAND[480]) , .DATA_B (SUMMAND[481]) , .DATA_C (SUMMAND[482]) , .SAVE (INT_SUM[551]) , .CARRY (INT_CARRY[438]) );
FULL_ADDER FA_380 (.DATA_A (SUMMAND[483]) , .DATA_B (SUMMAND[484]) , .DATA_C (SUMMAND[485]) , .SAVE (INT_SUM[552]) , .CARRY (INT_CARRY[439]) );
assign INT_SUM[553] = SUMMAND[486];
FULL_ADDER FA_381 (.DATA_A (INT_SUM[550]) , .DATA_B (INT_SUM[551]) , .DATA_C (INT_SUM[552]) , .SAVE (INT_SUM[554]) , .CARRY (INT_CARRY[440]) );
FULL_ADDER FA_382 (.DATA_A (INT_SUM[553]) , .DATA_B (INT_CARRY[427]) , .DATA_C (INT_CARRY[428]) , .SAVE (INT_SUM[555]) , .CARRY (INT_CARRY[441]) );
assign INT_SUM[556] = INT_CARRY[429];
FULL_ADDER FA_383 (.DATA_A (INT_SUM[554]) , .DATA_B (INT_SUM[555]) , .DATA_C (INT_SUM[556]) , .SAVE (INT_SUM[557]) , .CARRY (INT_CARRY[442]) );
HALF_ADDER HA_40 (.DATA_A (INT_CARRY[430]) , .DATA_B (INT_CARRY[431]) , .SAVE (INT_SUM[559]) , .CARRY (INT_CARRY[444]) );
FLIPFLOP LA_137 (.DIN (INT_SUM[557]) , .RST(RST), .CLK (CLK) , .DOUT (INT_SUM[558]) );
FLIPFLOP LA_138 (.DIN (INT_SUM[559]) , .RST(RST), .CLK (CLK) , .DOUT (INT_SUM[560]) );
FLIPFLOP LA_139 (.DIN (INT_CARRY[432]) , .RST(RST), .CLK (CLK) , .DOUT (INT_CARRY[433]) );
FULL_ADDER FA_384 (.DATA_A (INT_SUM[558]) , .DATA_B (INT_SUM[560]) , .DATA_C (INT_CARRY[433]) , .SAVE (INT_SUM[561]) , .CARRY (INT_CARRY[446]) );
FLIPFLOP LA_140 (.DIN (INT_CARRY[434]) , .RST(RST), .CLK (CLK) , .DOUT (INT_CARRY[435]) );
assign INT_SUM[562] = INT_CARRY[435];
FULL_ADDER FA_385 (.DATA_A (INT_SUM[561]) , .DATA_B (INT_SUM[562]) , .DATA_C (INT_CARRY[436]) , .SAVE (SUM[46]) , .CARRY (CARRY[46]) );
FULL_ADDER FA_386 (.DATA_A (SUMMAND[487]) , .DATA_B (SUMMAND[488]) , .DATA_C (SUMMAND[489]) , .SAVE (INT_SUM[563]) , .CARRY (INT_CARRY[447]) );
FULL_ADDER FA_387 (.DATA_A (SUMMAND[490]) , .DATA_B (SUMMAND[491]) , .DATA_C (SUMMAND[492]) , .SAVE (INT_SUM[564]) , .CARRY (INT_CARRY[448]) );
FULL_ADDER FA_388 (.DATA_A (SUMMAND[493]) , .DATA_B (SUMMAND[494]) , .DATA_C (SUMMAND[495]) , .SAVE (INT_SUM[565]) , .CARRY (INT_CARRY[449]) );
FULL_ADDER FA_389 (.DATA_A (INT_SUM[563]) , .DATA_B (INT_SUM[564]) , .DATA_C (INT_SUM[565]) , .SAVE (INT_SUM[566]) , .CARRY (INT_CARRY[450]) );
FULL_ADDER FA_390 (.DATA_A (INT_CARRY[437]) , .DATA_B (INT_CARRY[438]) , .DATA_C (INT_CARRY[439]) , .SAVE (INT_SUM[567]) , .CARRY (INT_CARRY[451]) );
FULL_ADDER FA_391 (.DATA_A (INT_SUM[566]) , .DATA_B (INT_SUM[567]) , .DATA_C (INT_CARRY[440]) , .SAVE (INT_SUM[568]) , .CARRY (INT_CARRY[452]) );
assign INT_SUM[570] = INT_CARRY[441];
FLIPFLOP LA_141 (.DIN (INT_SUM[568]) , .RST(RST), .CLK (CLK) , .DOUT (INT_SUM[569]) );
FLIPFLOP LA_142 (.DIN (INT_SUM[570]) , .RST(RST), .CLK (CLK) , .DOUT (INT_SUM[571]) );
FLIPFLOP LA_143 (.DIN (INT_CARRY[442]) , .RST(RST), .CLK (CLK) , .DOUT (INT_CARRY[443]) );
FULL_ADDER FA_392 (.DATA_A (INT_SUM[569]) , .DATA_B (INT_SUM[571]) , .DATA_C (INT_CARRY[443]) , .SAVE (INT_SUM[572]) , .CARRY (INT_CARRY[454]) );
FLIPFLOP LA_144 (.DIN (INT_CARRY[444]) , .RST(RST), .CLK (CLK) , .DOUT (INT_CARRY[445]) );
assign INT_SUM[573] = INT_CARRY[445];
FULL_ADDER FA_393 (.DATA_A (INT_SUM[572]) , .DATA_B (INT_SUM[573]) , .DATA_C (INT_CARRY[446]) , .SAVE (SUM[47]) , .CARRY (CARRY[47]) );
FULL_ADDER FA_394 (.DATA_A (SUMMAND[496]) , .DATA_B (SUMMAND[497]) , .DATA_C (SUMMAND[498]) , .SAVE (INT_SUM[574]) , .CARRY (INT_CARRY[455]) );
FULL_ADDER FA_395 (.DATA_A (SUMMAND[499]) , .DATA_B (SUMMAND[500]) , .DATA_C (SUMMAND[501]) , .SAVE (INT_SUM[575]) , .CARRY (INT_CARRY[456]) );
FULL_ADDER FA_396 (.DATA_A (SUMMAND[502]) , .DATA_B (SUMMAND[503]) , .DATA_C (SUMMAND[504]) , .SAVE (INT_SUM[576]) , .CARRY (INT_CARRY[457]) );
FULL_ADDER FA_397 (.DATA_A (INT_SUM[574]) , .DATA_B (INT_SUM[575]) , .DATA_C (INT_SUM[576]) , .SAVE (INT_SUM[577]) , .CARRY (INT_CARRY[458]) );
FULL_ADDER FA_398 (.DATA_A (INT_CARRY[447]) , .DATA_B (INT_CARRY[448]) , .DATA_C (INT_CARRY[449]) , .SAVE (INT_SUM[578]) , .CARRY (INT_CARRY[459]) );
FULL_ADDER FA_399 (.DATA_A (INT_SUM[577]) , .DATA_B (INT_SUM[578]) , .DATA_C (INT_CARRY[450]) , .SAVE (INT_SUM[579]) , .CARRY (INT_CARRY[460]) );
assign INT_SUM[581] = INT_CARRY[451];
FLIPFLOP LA_145 (.DIN (INT_SUM[579]) , .RST(RST), .CLK (CLK) , .DOUT (INT_SUM[580]) );
FLIPFLOP LA_146 (.DIN (INT_SUM[581]) , .RST(RST), .CLK (CLK) , .DOUT (INT_SUM[582]) );
FLIPFLOP LA_147 (.DIN (INT_CARRY[452]) , .RST(RST), .CLK (CLK) , .DOUT (INT_CARRY[453]) );
FULL_ADDER FA_400 (.DATA_A (INT_SUM[580]) , .DATA_B (INT_SUM[582]) , .DATA_C (INT_CARRY[453]) , .SAVE (INT_SUM[583]) , .CARRY (INT_CARRY[462]) );
HALF_ADDER HA_41 (.DATA_A (INT_SUM[583]) , .DATA_B (INT_CARRY[454]) , .SAVE (SUM[48]) , .CARRY (CARRY[48]) );
FULL_ADDER FA_401 (.DATA_A (SUMMAND[505]) , .DATA_B (SUMMAND[506]) , .DATA_C (SUMMAND[507]) , .SAVE (INT_SUM[584]) , .CARRY (INT_CARRY[463]) );
FULL_ADDER FA_402 (.DATA_A (SUMMAND[508]) , .DATA_B (SUMMAND[509]) , .DATA_C (SUMMAND[510]) , .SAVE (INT_SUM[585]) , .CARRY (INT_CARRY[464]) );
FULL_ADDER FA_403 (.DATA_A (SUMMAND[511]) , .DATA_B (SUMMAND[512]) , .DATA_C (INT_CARRY[455]) , .SAVE (INT_SUM[586]) , .CARRY (INT_CARRY[465]) );
HALF_ADDER HA_42 (.DATA_A (INT_CARRY[456]) , .DATA_B (INT_CARRY[457]) , .SAVE (INT_SUM[587]) , .CARRY (INT_CARRY[466]) );
FULL_ADDER FA_404 (.DATA_A (INT_SUM[584]) , .DATA_B (INT_SUM[585]) , .DATA_C (INT_SUM[586]) , .SAVE (INT_SUM[588]) , .CARRY (INT_CARRY[467]) );
FULL_ADDER FA_405 (.DATA_A (INT_SUM[587]) , .DATA_B (INT_CARRY[458]) , .DATA_C (INT_CARRY[459]) , .SAVE (INT_SUM[590]) , .CARRY (INT_CARRY[469]) );
FLIPFLOP LA_148 (.DIN (INT_SUM[588]) , .RST(RST), .CLK (CLK) , .DOUT (INT_SUM[589]) );
FLIPFLOP LA_149 (.DIN (INT_SUM[590]) , .RST(RST), .CLK (CLK) , .DOUT (INT_SUM[591]) );
FLIPFLOP LA_150 (.DIN (INT_CARRY[460]) , .RST(RST), .CLK (CLK) , .DOUT (INT_CARRY[461]) );
FULL_ADDER FA_406 (.DATA_A (INT_SUM[589]) , .DATA_B (INT_SUM[591]) , .DATA_C (INT_CARRY[461]) , .SAVE (INT_SUM[592]) , .CARRY (INT_CARRY[471]) );
HALF_ADDER HA_43 (.DATA_A (INT_SUM[592]) , .DATA_B (INT_CARRY[462]) , .SAVE (SUM[49]) , .CARRY (CARRY[49]) );
FULL_ADDER FA_407 (.DATA_A (SUMMAND[513]) , .DATA_B (SUMMAND[514]) , .DATA_C (SUMMAND[515]) , .SAVE (INT_SUM[593]) , .CARRY (INT_CARRY[472]) );
FULL_ADDER FA_408 (.DATA_A (SUMMAND[516]) , .DATA_B (SUMMAND[517]) , .DATA_C (SUMMAND[518]) , .SAVE (INT_SUM[594]) , .CARRY (INT_CARRY[473]) );
assign INT_SUM[595] = SUMMAND[519];
assign INT_SUM[596] = SUMMAND[520];
FULL_ADDER FA_409 (.DATA_A (INT_SUM[593]) , .DATA_B (INT_SUM[594]) , .DATA_C (INT_SUM[595]) , .SAVE (INT_SUM[597]) , .CARRY (INT_CARRY[474]) );
assign INT_SUM[598] = INT_SUM[596];
FULL_ADDER FA_410 (.DATA_A (INT_SUM[597]) , .DATA_B (INT_SUM[598]) , .DATA_C (INT_CARRY[463]) , .SAVE (INT_SUM[599]) , .CARRY (INT_CARRY[475]) );
FULL_ADDER FA_411 (.DATA_A (INT_CARRY[464]) , .DATA_B (INT_CARRY[465]) , .DATA_C (INT_CARRY[466]) , .SAVE (INT_SUM[601]) , .CARRY (INT_CARRY[477]) );
FLIPFLOP LA_151 (.DIN (INT_SUM[599]) , .RST(RST), .CLK (CLK) , .DOUT (INT_SUM[600]) );
FLIPFLOP LA_152 (.DIN (INT_SUM[601]) , .RST(RST), .CLK (CLK) , .DOUT (INT_SUM[602]) );
FLIPFLOP LA_153 (.DIN (INT_CARRY[467]) , .RST(RST), .CLK (CLK) , .DOUT (INT_CARRY[468]) );
FULL_ADDER FA_412 (.DATA_A (INT_SUM[600]) , .DATA_B (INT_SUM[602]) , .DATA_C (INT_CARRY[468]) , .SAVE (INT_SUM[603]) , .CARRY (INT_CARRY[479]) );
FLIPFLOP LA_154 (.DIN (INT_CARRY[469]) , .RST(RST), .CLK (CLK) , .DOUT (INT_CARRY[470]) );
assign INT_SUM[604] = INT_CARRY[470];
FULL_ADDER FA_413 (.DATA_A (INT_SUM[603]) , .DATA_B (INT_SUM[604]) , .DATA_C (INT_CARRY[471]) , .SAVE (SUM[50]) , .CARRY (CARRY[50]) );
FULL_ADDER FA_414 (.DATA_A (SUMMAND[521]) , .DATA_B (SUMMAND[522]) , .DATA_C (SUMMAND[523]) , .SAVE (INT_SUM[605]) , .CARRY (INT_CARRY[480]) );
FULL_ADDER FA_415 (.DATA_A (SUMMAND[524]) , .DATA_B (SUMMAND[525]) , .DATA_C (SUMMAND[526]) , .SAVE (INT_SUM[606]) , .CARRY (INT_CARRY[481]) );
FULL_ADDER FA_416 (.DATA_A (SUMMAND[527]) , .DATA_B (INT_CARRY[472]) , .DATA_C (INT_CARRY[473]) , .SAVE (INT_SUM[607]) , .CARRY (INT_CARRY[482]) );
FULL_ADDER FA_417 (.DATA_A (INT_SUM[605]) , .DATA_B (INT_SUM[606]) , .DATA_C (INT_SUM[607]) , .SAVE (INT_SUM[608]) , .CARRY (INT_CARRY[483]) );
assign INT_SUM[610] = INT_CARRY[474];
FLIPFLOP LA_155 (.DIN (INT_SUM[608]) , .RST(RST), .CLK (CLK) , .DOUT (INT_SUM[609]) );
FLIPFLOP LA_156 (.DIN (INT_SUM[610]) , .RST(RST), .CLK (CLK) , .DOUT (INT_SUM[611]) );
FLIPFLOP LA_157 (.DIN (INT_CARRY[475]) , .RST(RST), .CLK (CLK) , .DOUT (INT_CARRY[476]) );
FULL_ADDER FA_418 (.DATA_A (INT_SUM[609]) , .DATA_B (INT_SUM[611]) , .DATA_C (INT_CARRY[476]) , .SAVE (INT_SUM[612]) , .CARRY (INT_CARRY[485]) );
FLIPFLOP LA_158 (.DIN (INT_CARRY[477]) , .RST(RST), .CLK (CLK) , .DOUT (INT_CARRY[478]) );
assign INT_SUM[613] = INT_CARRY[478];
FULL_ADDER FA_419 (.DATA_A (INT_SUM[612]) , .DATA_B (INT_SUM[613]) , .DATA_C (INT_CARRY[479]) , .SAVE (SUM[51]) , .CARRY (CARRY[51]) );
FULL_ADDER FA_420 (.DATA_A (SUMMAND[528]) , .DATA_B (SUMMAND[529]) , .DATA_C (SUMMAND[530]) , .SAVE (INT_SUM[614]) , .CARRY (INT_CARRY[486]) );
FULL_ADDER FA_421 (.DATA_A (SUMMAND[531]) , .DATA_B (SUMMAND[532]) , .DATA_C (SUMMAND[533]) , .SAVE (INT_SUM[615]) , .CARRY (INT_CARRY[487]) );
assign INT_SUM[616] = SUMMAND[534];
FULL_ADDER FA_422 (.DATA_A (INT_SUM[614]) , .DATA_B (INT_SUM[615]) , .DATA_C (INT_SUM[616]) , .SAVE (INT_SUM[617]) , .CARRY (INT_CARRY[488]) );
FULL_ADDER FA_423 (.DATA_A (INT_CARRY[480]) , .DATA_B (INT_CARRY[481]) , .DATA_C (INT_CARRY[482]) , .SAVE (INT_SUM[619]) , .CARRY (INT_CARRY[490]) );
FLIPFLOP LA_159 (.DIN (INT_SUM[617]) , .RST(RST), .CLK (CLK) , .DOUT (INT_SUM[618]) );
FLIPFLOP LA_160 (.DIN (INT_SUM[619]) , .RST(RST), .CLK (CLK) , .DOUT (INT_SUM[620]) );
FLIPFLOP LA_161 (.DIN (INT_CARRY[483]) , .RST(RST), .CLK (CLK) , .DOUT (INT_CARRY[484]) );
FULL_ADDER FA_424 (.DATA_A (INT_SUM[618]) , .DATA_B (INT_SUM[620]) , .DATA_C (INT_CARRY[484]) , .SAVE (INT_SUM[621]) , .CARRY (INT_CARRY[492]) );
HALF_ADDER HA_44 (.DATA_A (INT_SUM[621]) , .DATA_B (INT_CARRY[485]) , .SAVE (SUM[52]) , .CARRY (CARRY[52]) );
FULL_ADDER FA_425 (.DATA_A (SUMMAND[535]) , .DATA_B (SUMMAND[536]) , .DATA_C (SUMMAND[537]) , .SAVE (INT_SUM[622]) , .CARRY (INT_CARRY[493]) );
FULL_ADDER FA_426 (.DATA_A (SUMMAND[538]) , .DATA_B (SUMMAND[539]) , .DATA_C (SUMMAND[540]) , .SAVE (INT_SUM[623]) , .CARRY (INT_CARRY[494]) );
FULL_ADDER FA_427 (.DATA_A (INT_SUM[622]) , .DATA_B (INT_SUM[623]) , .DATA_C (INT_CARRY[486]) , .SAVE (INT_SUM[624]) , .CARRY (INT_CARRY[495]) );
assign INT_SUM[626] = INT_CARRY[487];
FLIPFLOP LA_162 (.DIN (INT_SUM[624]) , .RST(RST), .CLK (CLK) , .DOUT (INT_SUM[625]) );
FLIPFLOP LA_163 (.DIN (INT_SUM[626]) , .RST(RST), .CLK (CLK) , .DOUT (INT_SUM[627]) );
FLIPFLOP LA_164 (.DIN (INT_CARRY[488]) , .RST(RST), .CLK (CLK) , .DOUT (INT_CARRY[489]) );
FULL_ADDER FA_428 (.DATA_A (INT_SUM[625]) , .DATA_B (INT_SUM[627]) , .DATA_C (INT_CARRY[489]) , .SAVE (INT_SUM[628]) , .CARRY (INT_CARRY[497]) );
FLIPFLOP LA_165 (.DIN (INT_CARRY[490]) , .RST(RST), .CLK (CLK) , .DOUT (INT_CARRY[491]) );
assign INT_SUM[629] = INT_CARRY[491];
FULL_ADDER FA_429 (.DATA_A (INT_SUM[628]) , .DATA_B (INT_SUM[629]) , .DATA_C (INT_CARRY[492]) , .SAVE (SUM[53]) , .CARRY (CARRY[53]) );
FULL_ADDER FA_430 (.DATA_A (SUMMAND[541]) , .DATA_B (SUMMAND[542]) , .DATA_C (SUMMAND[543]) , .SAVE (INT_SUM[630]) , .CARRY (INT_CARRY[498]) );
FULL_ADDER FA_431 (.DATA_A (SUMMAND[544]) , .DATA_B (SUMMAND[545]) , .DATA_C (SUMMAND[546]) , .SAVE (INT_SUM[631]) , .CARRY (INT_CARRY[499]) );
FULL_ADDER FA_432 (.DATA_A (INT_SUM[630]) , .DATA_B (INT_SUM[631]) , .DATA_C (INT_CARRY[493]) , .SAVE (INT_SUM[632]) , .CARRY (INT_CARRY[500]) );
assign INT_SUM[634] = INT_CARRY[494];
FLIPFLOP LA_166 (.DIN (INT_SUM[632]) , .RST(RST), .CLK (CLK) , .DOUT (INT_SUM[633]) );
FLIPFLOP LA_167 (.DIN (INT_SUM[634]) , .RST(RST), .CLK (CLK) , .DOUT (INT_SUM[635]) );
FLIPFLOP LA_168 (.DIN (INT_CARRY[495]) , .RST(RST), .CLK (CLK) , .DOUT (INT_CARRY[496]) );
FULL_ADDER FA_433 (.DATA_A (INT_SUM[633]) , .DATA_B (INT_SUM[635]) , .DATA_C (INT_CARRY[496]) , .SAVE (INT_SUM[636]) , .CARRY (INT_CARRY[502]) );
HALF_ADDER HA_45 (.DATA_A (INT_SUM[636]) , .DATA_B (INT_CARRY[497]) , .SAVE (SUM[54]) , .CARRY (CARRY[54]) );
FULL_ADDER FA_434 (.DATA_A (SUMMAND[547]) , .DATA_B (SUMMAND[548]) , .DATA_C (SUMMAND[549]) , .SAVE (INT_SUM[637]) , .CARRY (INT_CARRY[503]) );
HALF_ADDER HA_46 (.DATA_A (SUMMAND[550]) , .DATA_B (SUMMAND[551]) , .SAVE (INT_SUM[638]) , .CARRY (INT_CARRY[504]) );
FULL_ADDER FA_435 (.DATA_A (INT_SUM[637]) , .DATA_B (INT_SUM[638]) , .DATA_C (INT_CARRY[498]) , .SAVE (INT_SUM[639]) , .CARRY (INT_CARRY[505]) );
assign INT_SUM[641] = INT_CARRY[499];
FLIPFLOP LA_169 (.DIN (INT_SUM[639]) , .RST(RST), .CLK (CLK) , .DOUT (INT_SUM[640]) );
FLIPFLOP LA_170 (.DIN (INT_SUM[641]) , .RST(RST), .CLK (CLK) , .DOUT (INT_SUM[642]) );
FLIPFLOP LA_171 (.DIN (INT_CARRY[500]) , .RST(RST), .CLK (CLK) , .DOUT (INT_CARRY[501]) );
FULL_ADDER FA_436 (.DATA_A (INT_SUM[640]) , .DATA_B (INT_SUM[642]) , .DATA_C (INT_CARRY[501]) , .SAVE (INT_SUM[643]) , .CARRY (INT_CARRY[507]) );
HALF_ADDER HA_47 (.DATA_A (INT_SUM[643]) , .DATA_B (INT_CARRY[502]) , .SAVE (SUM[55]) , .CARRY (CARRY[55]) );
FULL_ADDER FA_437 (.DATA_A (SUMMAND[552]) , .DATA_B (SUMMAND[553]) , .DATA_C (SUMMAND[554]) , .SAVE (INT_SUM[644]) , .CARRY (INT_CARRY[508]) );
HALF_ADDER HA_48 (.DATA_A (SUMMAND[555]) , .DATA_B (SUMMAND[556]) , .SAVE (INT_SUM[645]) , .CARRY (INT_CARRY[509]) );
FULL_ADDER FA_438 (.DATA_A (INT_SUM[644]) , .DATA_B (INT_SUM[645]) , .DATA_C (INT_CARRY[503]) , .SAVE (INT_SUM[646]) , .CARRY (INT_CARRY[510]) );
assign INT_SUM[648] = INT_CARRY[504];
FLIPFLOP LA_172 (.DIN (INT_SUM[646]) , .RST(RST), .CLK (CLK) , .DOUT (INT_SUM[647]) );
FLIPFLOP LA_173 (.DIN (INT_SUM[648]) , .RST(RST), .CLK (CLK) , .DOUT (INT_SUM[649]) );
FLIPFLOP LA_174 (.DIN (INT_CARRY[505]) , .RST(RST), .CLK (CLK) , .DOUT (INT_CARRY[506]) );
FULL_ADDER FA_439 (.DATA_A (INT_SUM[647]) , .DATA_B (INT_SUM[649]) , .DATA_C (INT_CARRY[506]) , .SAVE (INT_SUM[650]) , .CARRY (INT_CARRY[512]) );
HALF_ADDER HA_49 (.DATA_A (INT_SUM[650]) , .DATA_B (INT_CARRY[507]) , .SAVE (SUM[56]) , .CARRY (CARRY[56]) );
FULL_ADDER FA_440 (.DATA_A (SUMMAND[557]) , .DATA_B (SUMMAND[558]) , .DATA_C (SUMMAND[559]) , .SAVE (INT_SUM[651]) , .CARRY (INT_CARRY[513]) );
FULL_ADDER FA_441 (.DATA_A (SUMMAND[560]) , .DATA_B (INT_CARRY[508]) , .DATA_C (INT_CARRY[509]) , .SAVE (INT_SUM[653]) , .CARRY (INT_CARRY[515]) );
FLIPFLOP LA_175 (.DIN (INT_SUM[651]) , .RST(RST), .CLK (CLK) , .DOUT (INT_SUM[652]) );
FLIPFLOP LA_176 (.DIN (INT_SUM[653]) , .RST(RST), .CLK (CLK) , .DOUT (INT_SUM[654]) );
FLIPFLOP LA_177 (.DIN (INT_CARRY[510]) , .RST(RST), .CLK (CLK) , .DOUT (INT_CARRY[511]) );
FULL_ADDER FA_442 (.DATA_A (INT_SUM[652]) , .DATA_B (INT_SUM[654]) , .DATA_C (INT_CARRY[511]) , .SAVE (INT_SUM[655]) , .CARRY (INT_CARRY[517]) );
HALF_ADDER HA_50 (.DATA_A (INT_SUM[655]) , .DATA_B (INT_CARRY[512]) , .SAVE (SUM[57]) , .CARRY (CARRY[57]) );
FULL_ADDER FA_443 (.DATA_A (SUMMAND[561]) , .DATA_B (SUMMAND[562]) , .DATA_C (SUMMAND[563]) , .SAVE (INT_SUM[656]) , .CARRY (INT_CARRY[518]) );
assign INT_SUM[658] = SUMMAND[564];
FLIPFLOP LA_178 (.DIN (INT_SUM[656]) , .RST(RST), .CLK (CLK) , .DOUT (INT_SUM[657]) );
FLIPFLOP LA_179 (.DIN (INT_SUM[658]) , .RST(RST), .CLK (CLK) , .DOUT (INT_SUM[659]) );
FLIPFLOP LA_180 (.DIN (INT_CARRY[513]) , .RST(RST), .CLK (CLK) , .DOUT (INT_CARRY[514]) );
FULL_ADDER FA_444 (.DATA_A (INT_SUM[657]) , .DATA_B (INT_SUM[659]) , .DATA_C (INT_CARRY[514]) , .SAVE (INT_SUM[660]) , .CARRY (INT_CARRY[520]) );
FLIPFLOP LA_181 (.DIN (INT_CARRY[515]) , .RST(RST), .CLK (CLK) , .DOUT (INT_CARRY[516]) );
assign INT_SUM[661] = INT_CARRY[516];
FULL_ADDER FA_445 (.DATA_A (INT_SUM[660]) , .DATA_B (INT_SUM[661]) , .DATA_C (INT_CARRY[517]) , .SAVE (SUM[58]) , .CARRY (CARRY[58]) );
FULL_ADDER FA_446 (.DATA_A (SUMMAND[565]) , .DATA_B (SUMMAND[566]) , .DATA_C (SUMMAND[567]) , .SAVE (INT_SUM[662]) , .CARRY (INT_CARRY[521]) );
FLIPFLOP LA_182 (.DIN (INT_SUM[662]) , .RST(RST), .CLK (CLK) , .DOUT (INT_SUM[663]) );
assign INT_SUM[664] = INT_SUM[663];
FLIPFLOP LA_183 (.DIN (INT_CARRY[518]) , .RST(RST), .CLK (CLK) , .DOUT (INT_CARRY[519]) );
assign INT_SUM[665] = INT_CARRY[519];
FULL_ADDER FA_447 (.DATA_A (INT_SUM[664]) , .DATA_B (INT_SUM[665]) , .DATA_C (INT_CARRY[520]) , .SAVE (SUM[59]) , .CARRY (CARRY[59]) );
FLIPFLOP LA_184 (.DIN (SUMMAND[568]) , .RST(RST), .CLK (CLK) , .DOUT (LATCHED_PP[0]) );
FLIPFLOP LA_185 (.DIN (SUMMAND[569]) , .RST(RST), .CLK (CLK) , .DOUT (LATCHED_PP[1]) );
FLIPFLOP LA_186 (.DIN (SUMMAND[570]) , .RST(RST), .CLK (CLK) , .DOUT (LATCHED_PP[2]) );
FULL_ADDER FA_448 (.DATA_A (LATCHED_PP[0]) , .DATA_B (LATCHED_PP[1]) , .DATA_C (LATCHED_PP[2]) , .SAVE (INT_SUM[666]) , .CARRY (INT_CARRY[523]) );
FLIPFLOP LA_187 (.DIN (INT_CARRY[521]) , .RST(RST), .CLK (CLK) , .DOUT (INT_CARRY[522]) );
assign INT_SUM[667] = INT_CARRY[522];
HALF_ADDER HA_51 (.DATA_A (INT_SUM[666]) , .DATA_B (INT_SUM[667]) , .SAVE (SUM[60]) , .CARRY (CARRY[60]) );
FLIPFLOP LA_188 (.DIN (SUMMAND[571]) , .RST(RST), .CLK (CLK) , .DOUT (LATCHED_PP[3]) );
assign INT_SUM[668] = LATCHED_PP[3];
FLIPFLOP LA_189 (.DIN (SUMMAND[572]) , .RST(RST), .CLK (CLK) , .DOUT (LATCHED_PP[4]) );
assign INT_SUM[669] = LATCHED_PP[4];
FULL_ADDER FA_449 (.DATA_A (INT_SUM[668]) , .DATA_B (INT_SUM[669]) , .DATA_C (INT_CARRY[523]) , .SAVE (SUM[61]) , .CARRY (CARRY[61]) );
FLIPFLOP LA_190 (.DIN (SUMMAND[573]) , .RST(RST), .CLK (CLK) , .DOUT (LATCHED_PP[5]) );
FLIPFLOP LA_191 (.DIN (SUMMAND[574]) , .RST(RST), .CLK (CLK) , .DOUT (LATCHED_PP[6]) );
HALF_ADDER HA_52 (.DATA_A (LATCHED_PP[5]) , .DATA_B (LATCHED_PP[6]) , .SAVE (SUM[62]) , .CARRY (CARRY[62]) );
FLIPFLOP LA_192 (.DIN (SUMMAND[575]) , .RST(RST), .CLK (CLK) , .DOUT (LATCHED_PP[7]) );
assign SUM[63] = LATCHED_PP[7];
endmodule
 
 
module INVBLOCK ( GIN, PHI, GOUT );
input GIN;
input PHI;
output GOUT;
assign GOUT = ~ GIN;
endmodule
 
 
module XXOR1 ( A, B, GIN, PHI, SUM );
input A;
input B;
input GIN;
input PHI;
output SUM;
assign SUM = ( ~ (A ^ B)) ^ GIN;
endmodule
 
 
module BLOCK0 ( A, B, PHI, POUT, GOUT );
input A;
input B;
input PHI;
output POUT;
output GOUT;
assign POUT = ~ (A | B);
assign GOUT = ~ (A & B);
endmodule
 
 
module BLOCK1 ( PIN1, PIN2, GIN1, GIN2, PHI, POUT, GOUT );
input PIN1;
input PIN2;
input GIN1;
input GIN2;
input PHI;
output POUT;
output GOUT;
assign POUT = ~ (PIN1 | PIN2);
assign GOUT = ~ (GIN2 & (PIN2 | GIN1));
endmodule
 
 
module BLOCK2 ( PIN1, PIN2, GIN1, GIN2, PHI, POUT, GOUT );
input PIN1;
input PIN2;
input GIN1;
input GIN2;
input PHI;
output POUT;
output GOUT;
assign POUT = ~ (PIN1 & PIN2);
assign GOUT = ~ (GIN2 | (PIN2 & GIN1));
endmodule
 
 
module BLOCK1A ( PIN2, GIN1, GIN2, PHI, GOUT );
input PIN2;
input GIN1;
input GIN2;
input PHI;
output GOUT;
assign GOUT = ~ (GIN2 & (PIN2 | GIN1));
endmodule
 
 
module BLOCK2A ( PIN2, GIN1, GIN2, PHI, GOUT );
input PIN2;
input GIN1;
input GIN2;
input PHI;
output GOUT;
assign GOUT = ~ (GIN2 | (PIN2 & GIN1));
endmodule
 
 
module PRESTAGE_64 ( A, B, CIN, PHI, POUT, GOUT );
input [0:63] A;
input [0:63] B;
input CIN;
input PHI;
output [0:63] POUT;
output [0:64] GOUT;
BLOCK0 U10 (A[0] , B[0] , PHI , POUT[0] , GOUT[1] );
BLOCK0 U11 (A[1] , B[1] , PHI , POUT[1] , GOUT[2] );
BLOCK0 U12 (A[2] , B[2] , PHI , POUT[2] , GOUT[3] );
BLOCK0 U13 (A[3] , B[3] , PHI , POUT[3] , GOUT[4] );
BLOCK0 U14 (A[4] , B[4] , PHI , POUT[4] , GOUT[5] );
BLOCK0 U15 (A[5] , B[5] , PHI , POUT[5] , GOUT[6] );
BLOCK0 U16 (A[6] , B[6] , PHI , POUT[6] , GOUT[7] );
BLOCK0 U17 (A[7] , B[7] , PHI , POUT[7] , GOUT[8] );
BLOCK0 U18 (A[8] , B[8] , PHI , POUT[8] , GOUT[9] );
BLOCK0 U19 (A[9] , B[9] , PHI , POUT[9] , GOUT[10] );
BLOCK0 U110 (A[10] , B[10] , PHI , POUT[10] , GOUT[11] );
BLOCK0 U111 (A[11] , B[11] , PHI , POUT[11] , GOUT[12] );
BLOCK0 U112 (A[12] , B[12] , PHI , POUT[12] , GOUT[13] );
BLOCK0 U113 (A[13] , B[13] , PHI , POUT[13] , GOUT[14] );
BLOCK0 U114 (A[14] , B[14] , PHI , POUT[14] , GOUT[15] );
BLOCK0 U115 (A[15] , B[15] , PHI , POUT[15] , GOUT[16] );
BLOCK0 U116 (A[16] , B[16] , PHI , POUT[16] , GOUT[17] );
BLOCK0 U117 (A[17] , B[17] , PHI , POUT[17] , GOUT[18] );
BLOCK0 U118 (A[18] , B[18] , PHI , POUT[18] , GOUT[19] );
BLOCK0 U119 (A[19] , B[19] , PHI , POUT[19] , GOUT[20] );
BLOCK0 U120 (A[20] , B[20] , PHI , POUT[20] , GOUT[21] );
BLOCK0 U121 (A[21] , B[21] , PHI , POUT[21] , GOUT[22] );
BLOCK0 U122 (A[22] , B[22] , PHI , POUT[22] , GOUT[23] );
BLOCK0 U123 (A[23] , B[23] , PHI , POUT[23] , GOUT[24] );
BLOCK0 U124 (A[24] , B[24] , PHI , POUT[24] , GOUT[25] );
BLOCK0 U125 (A[25] , B[25] , PHI , POUT[25] , GOUT[26] );
BLOCK0 U126 (A[26] , B[26] , PHI , POUT[26] , GOUT[27] );
BLOCK0 U127 (A[27] , B[27] , PHI , POUT[27] , GOUT[28] );
BLOCK0 U128 (A[28] , B[28] , PHI , POUT[28] , GOUT[29] );
BLOCK0 U129 (A[29] , B[29] , PHI , POUT[29] , GOUT[30] );
BLOCK0 U130 (A[30] , B[30] , PHI , POUT[30] , GOUT[31] );
BLOCK0 U131 (A[31] , B[31] , PHI , POUT[31] , GOUT[32] );
BLOCK0 U132 (A[32] , B[32] , PHI , POUT[32] , GOUT[33] );
BLOCK0 U133 (A[33] , B[33] , PHI , POUT[33] , GOUT[34] );
BLOCK0 U134 (A[34] , B[34] , PHI , POUT[34] , GOUT[35] );
BLOCK0 U135 (A[35] , B[35] , PHI , POUT[35] , GOUT[36] );
BLOCK0 U136 (A[36] , B[36] , PHI , POUT[36] , GOUT[37] );
BLOCK0 U137 (A[37] , B[37] , PHI , POUT[37] , GOUT[38] );
BLOCK0 U138 (A[38] , B[38] , PHI , POUT[38] , GOUT[39] );
BLOCK0 U139 (A[39] , B[39] , PHI , POUT[39] , GOUT[40] );
BLOCK0 U140 (A[40] , B[40] , PHI , POUT[40] , GOUT[41] );
BLOCK0 U141 (A[41] , B[41] , PHI , POUT[41] , GOUT[42] );
BLOCK0 U142 (A[42] , B[42] , PHI , POUT[42] , GOUT[43] );
BLOCK0 U143 (A[43] , B[43] , PHI , POUT[43] , GOUT[44] );
BLOCK0 U144 (A[44] , B[44] , PHI , POUT[44] , GOUT[45] );
BLOCK0 U145 (A[45] , B[45] , PHI , POUT[45] , GOUT[46] );
BLOCK0 U146 (A[46] , B[46] , PHI , POUT[46] , GOUT[47] );
BLOCK0 U147 (A[47] , B[47] , PHI , POUT[47] , GOUT[48] );
BLOCK0 U148 (A[48] , B[48] , PHI , POUT[48] , GOUT[49] );
BLOCK0 U149 (A[49] , B[49] , PHI , POUT[49] , GOUT[50] );
BLOCK0 U150 (A[50] , B[50] , PHI , POUT[50] , GOUT[51] );
BLOCK0 U151 (A[51] , B[51] , PHI , POUT[51] , GOUT[52] );
BLOCK0 U152 (A[52] , B[52] , PHI , POUT[52] , GOUT[53] );
BLOCK0 U153 (A[53] , B[53] , PHI , POUT[53] , GOUT[54] );
BLOCK0 U154 (A[54] , B[54] , PHI , POUT[54] , GOUT[55] );
BLOCK0 U155 (A[55] , B[55] , PHI , POUT[55] , GOUT[56] );
BLOCK0 U156 (A[56] , B[56] , PHI , POUT[56] , GOUT[57] );
BLOCK0 U157 (A[57] , B[57] , PHI , POUT[57] , GOUT[58] );
BLOCK0 U158 (A[58] , B[58] , PHI , POUT[58] , GOUT[59] );
BLOCK0 U159 (A[59] , B[59] , PHI , POUT[59] , GOUT[60] );
BLOCK0 U160 (A[60] , B[60] , PHI , POUT[60] , GOUT[61] );
BLOCK0 U161 (A[61] , B[61] , PHI , POUT[61] , GOUT[62] );
BLOCK0 U162 (A[62] , B[62] , PHI , POUT[62] , GOUT[63] );
BLOCK0 U163 (A[63] , B[63] , PHI , POUT[63] , GOUT[64] );
INVBLOCK U2 (CIN , PHI , GOUT[0] );
endmodule
 
 
module DBLC_0_64 ( PIN, GIN, PHI, POUT, GOUT );
input [0:63] PIN;
input [0:64] GIN;
input PHI;
output [0:62] POUT;
output [0:64] GOUT;
INVBLOCK U10 (GIN[0] , PHI , GOUT[0] );
BLOCK1A U21 (PIN[0] , GIN[0] , GIN[1] , PHI , GOUT[1] );
BLOCK1 U32 (PIN[0] , PIN[1] , GIN[1] , GIN[2] , PHI , POUT[0] , GOUT[2] );
BLOCK1 U33 (PIN[1] , PIN[2] , GIN[2] , GIN[3] , PHI , POUT[1] , GOUT[3] );
BLOCK1 U34 (PIN[2] , PIN[3] , GIN[3] , GIN[4] , PHI , POUT[2] , GOUT[4] );
BLOCK1 U35 (PIN[3] , PIN[4] , GIN[4] , GIN[5] , PHI , POUT[3] , GOUT[5] );
BLOCK1 U36 (PIN[4] , PIN[5] , GIN[5] , GIN[6] , PHI , POUT[4] , GOUT[6] );
BLOCK1 U37 (PIN[5] , PIN[6] , GIN[6] , GIN[7] , PHI , POUT[5] , GOUT[7] );
BLOCK1 U38 (PIN[6] , PIN[7] , GIN[7] , GIN[8] , PHI , POUT[6] , GOUT[8] );
BLOCK1 U39 (PIN[7] , PIN[8] , GIN[8] , GIN[9] , PHI , POUT[7] , GOUT[9] );
BLOCK1 U310 (PIN[8] , PIN[9] , GIN[9] , GIN[10] , PHI , POUT[8] , GOUT[10] );
BLOCK1 U311 (PIN[9] , PIN[10] , GIN[10] , GIN[11] , PHI , POUT[9] , GOUT[11] );
BLOCK1 U312 (PIN[10] , PIN[11] , GIN[11] , GIN[12] , PHI , POUT[10] , GOUT[12] );
BLOCK1 U313 (PIN[11] , PIN[12] , GIN[12] , GIN[13] , PHI , POUT[11] , GOUT[13] );
BLOCK1 U314 (PIN[12] , PIN[13] , GIN[13] , GIN[14] , PHI , POUT[12] , GOUT[14] );
BLOCK1 U315 (PIN[13] , PIN[14] , GIN[14] , GIN[15] , PHI , POUT[13] , GOUT[15] );
BLOCK1 U316 (PIN[14] , PIN[15] , GIN[15] , GIN[16] , PHI , POUT[14] , GOUT[16] );
BLOCK1 U317 (PIN[15] , PIN[16] , GIN[16] , GIN[17] , PHI , POUT[15] , GOUT[17] );
BLOCK1 U318 (PIN[16] , PIN[17] , GIN[17] , GIN[18] , PHI , POUT[16] , GOUT[18] );
BLOCK1 U319 (PIN[17] , PIN[18] , GIN[18] , GIN[19] , PHI , POUT[17] , GOUT[19] );
BLOCK1 U320 (PIN[18] , PIN[19] , GIN[19] , GIN[20] , PHI , POUT[18] , GOUT[20] );
BLOCK1 U321 (PIN[19] , PIN[20] , GIN[20] , GIN[21] , PHI , POUT[19] , GOUT[21] );
BLOCK1 U322 (PIN[20] , PIN[21] , GIN[21] , GIN[22] , PHI , POUT[20] , GOUT[22] );
BLOCK1 U323 (PIN[21] , PIN[22] , GIN[22] , GIN[23] , PHI , POUT[21] , GOUT[23] );
BLOCK1 U324 (PIN[22] , PIN[23] , GIN[23] , GIN[24] , PHI , POUT[22] , GOUT[24] );
BLOCK1 U325 (PIN[23] , PIN[24] , GIN[24] , GIN[25] , PHI , POUT[23] , GOUT[25] );
BLOCK1 U326 (PIN[24] , PIN[25] , GIN[25] , GIN[26] , PHI , POUT[24] , GOUT[26] );
BLOCK1 U327 (PIN[25] , PIN[26] , GIN[26] , GIN[27] , PHI , POUT[25] , GOUT[27] );
BLOCK1 U328 (PIN[26] , PIN[27] , GIN[27] , GIN[28] , PHI , POUT[26] , GOUT[28] );
BLOCK1 U329 (PIN[27] , PIN[28] , GIN[28] , GIN[29] , PHI , POUT[27] , GOUT[29] );
BLOCK1 U330 (PIN[28] , PIN[29] , GIN[29] , GIN[30] , PHI , POUT[28] , GOUT[30] );
BLOCK1 U331 (PIN[29] , PIN[30] , GIN[30] , GIN[31] , PHI , POUT[29] , GOUT[31] );
BLOCK1 U332 (PIN[30] , PIN[31] , GIN[31] , GIN[32] , PHI , POUT[30] , GOUT[32] );
BLOCK1 U333 (PIN[31] , PIN[32] , GIN[32] , GIN[33] , PHI , POUT[31] , GOUT[33] );
BLOCK1 U334 (PIN[32] , PIN[33] , GIN[33] , GIN[34] , PHI , POUT[32] , GOUT[34] );
BLOCK1 U335 (PIN[33] , PIN[34] , GIN[34] , GIN[35] , PHI , POUT[33] , GOUT[35] );
BLOCK1 U336 (PIN[34] , PIN[35] , GIN[35] , GIN[36] , PHI , POUT[34] , GOUT[36] );
BLOCK1 U337 (PIN[35] , PIN[36] , GIN[36] , GIN[37] , PHI , POUT[35] , GOUT[37] );
BLOCK1 U338 (PIN[36] , PIN[37] , GIN[37] , GIN[38] , PHI , POUT[36] , GOUT[38] );
BLOCK1 U339 (PIN[37] , PIN[38] , GIN[38] , GIN[39] , PHI , POUT[37] , GOUT[39] );
BLOCK1 U340 (PIN[38] , PIN[39] , GIN[39] , GIN[40] , PHI , POUT[38] , GOUT[40] );
BLOCK1 U341 (PIN[39] , PIN[40] , GIN[40] , GIN[41] , PHI , POUT[39] , GOUT[41] );
BLOCK1 U342 (PIN[40] , PIN[41] , GIN[41] , GIN[42] , PHI , POUT[40] , GOUT[42] );
BLOCK1 U343 (PIN[41] , PIN[42] , GIN[42] , GIN[43] , PHI , POUT[41] , GOUT[43] );
BLOCK1 U344 (PIN[42] , PIN[43] , GIN[43] , GIN[44] , PHI , POUT[42] , GOUT[44] );
BLOCK1 U345 (PIN[43] , PIN[44] , GIN[44] , GIN[45] , PHI , POUT[43] , GOUT[45] );
BLOCK1 U346 (PIN[44] , PIN[45] , GIN[45] , GIN[46] , PHI , POUT[44] , GOUT[46] );
BLOCK1 U347 (PIN[45] , PIN[46] , GIN[46] , GIN[47] , PHI , POUT[45] , GOUT[47] );
BLOCK1 U348 (PIN[46] , PIN[47] , GIN[47] , GIN[48] , PHI , POUT[46] , GOUT[48] );
BLOCK1 U349 (PIN[47] , PIN[48] , GIN[48] , GIN[49] , PHI , POUT[47] , GOUT[49] );
BLOCK1 U350 (PIN[48] , PIN[49] , GIN[49] , GIN[50] , PHI , POUT[48] , GOUT[50] );
BLOCK1 U351 (PIN[49] , PIN[50] , GIN[50] , GIN[51] , PHI , POUT[49] , GOUT[51] );
BLOCK1 U352 (PIN[50] , PIN[51] , GIN[51] , GIN[52] , PHI , POUT[50] , GOUT[52] );
BLOCK1 U353 (PIN[51] , PIN[52] , GIN[52] , GIN[53] , PHI , POUT[51] , GOUT[53] );
BLOCK1 U354 (PIN[52] , PIN[53] , GIN[53] , GIN[54] , PHI , POUT[52] , GOUT[54] );
BLOCK1 U355 (PIN[53] , PIN[54] , GIN[54] , GIN[55] , PHI , POUT[53] , GOUT[55] );
BLOCK1 U356 (PIN[54] , PIN[55] , GIN[55] , GIN[56] , PHI , POUT[54] , GOUT[56] );
BLOCK1 U357 (PIN[55] , PIN[56] , GIN[56] , GIN[57] , PHI , POUT[55] , GOUT[57] );
BLOCK1 U358 (PIN[56] , PIN[57] , GIN[57] , GIN[58] , PHI , POUT[56] , GOUT[58] );
BLOCK1 U359 (PIN[57] , PIN[58] , GIN[58] , GIN[59] , PHI , POUT[57] , GOUT[59] );
BLOCK1 U360 (PIN[58] , PIN[59] , GIN[59] , GIN[60] , PHI , POUT[58] , GOUT[60] );
BLOCK1 U361 (PIN[59] , PIN[60] , GIN[60] , GIN[61] , PHI , POUT[59] , GOUT[61] );
BLOCK1 U362 (PIN[60] , PIN[61] , GIN[61] , GIN[62] , PHI , POUT[60] , GOUT[62] );
BLOCK1 U363 (PIN[61] , PIN[62] , GIN[62] , GIN[63] , PHI , POUT[61] , GOUT[63] );
BLOCK1 U364 (PIN[62] , PIN[63] , GIN[63] , GIN[64] , PHI , POUT[62] , GOUT[64] );
endmodule
 
 
module DBLC_1_64 ( PIN, GIN, PHI, POUT, GOUT );
input [0:62] PIN;
input [0:64] GIN;
input PHI;
output [0:60] POUT;
output [0:64] GOUT;
INVBLOCK U10 (GIN[0] , PHI , GOUT[0] );
INVBLOCK U11 (GIN[1] , PHI , GOUT[1] );
BLOCK2A U22 (PIN[0] , GIN[0] , GIN[2] , PHI , GOUT[2] );
BLOCK2A U23 (PIN[1] , GIN[1] , GIN[3] , PHI , GOUT[3] );
BLOCK2 U34 (PIN[0] , PIN[2] , GIN[2] , GIN[4] , PHI , POUT[0] , GOUT[4] );
BLOCK2 U35 (PIN[1] , PIN[3] , GIN[3] , GIN[5] , PHI , POUT[1] , GOUT[5] );
BLOCK2 U36 (PIN[2] , PIN[4] , GIN[4] , GIN[6] , PHI , POUT[2] , GOUT[6] );
BLOCK2 U37 (PIN[3] , PIN[5] , GIN[5] , GIN[7] , PHI , POUT[3] , GOUT[7] );
BLOCK2 U38 (PIN[4] , PIN[6] , GIN[6] , GIN[8] , PHI , POUT[4] , GOUT[8] );
BLOCK2 U39 (PIN[5] , PIN[7] , GIN[7] , GIN[9] , PHI , POUT[5] , GOUT[9] );
BLOCK2 U310 (PIN[6] , PIN[8] , GIN[8] , GIN[10] , PHI , POUT[6] , GOUT[10] );
BLOCK2 U311 (PIN[7] , PIN[9] , GIN[9] , GIN[11] , PHI , POUT[7] , GOUT[11] );
BLOCK2 U312 (PIN[8] , PIN[10] , GIN[10] , GIN[12] , PHI , POUT[8] , GOUT[12] );
BLOCK2 U313 (PIN[9] , PIN[11] , GIN[11] , GIN[13] , PHI , POUT[9] , GOUT[13] );
BLOCK2 U314 (PIN[10] , PIN[12] , GIN[12] , GIN[14] , PHI , POUT[10] , GOUT[14] );
BLOCK2 U315 (PIN[11] , PIN[13] , GIN[13] , GIN[15] , PHI , POUT[11] , GOUT[15] );
BLOCK2 U316 (PIN[12] , PIN[14] , GIN[14] , GIN[16] , PHI , POUT[12] , GOUT[16] );
BLOCK2 U317 (PIN[13] , PIN[15] , GIN[15] , GIN[17] , PHI , POUT[13] , GOUT[17] );
BLOCK2 U318 (PIN[14] , PIN[16] , GIN[16] , GIN[18] , PHI , POUT[14] , GOUT[18] );
BLOCK2 U319 (PIN[15] , PIN[17] , GIN[17] , GIN[19] , PHI , POUT[15] , GOUT[19] );
BLOCK2 U320 (PIN[16] , PIN[18] , GIN[18] , GIN[20] , PHI , POUT[16] , GOUT[20] );
BLOCK2 U321 (PIN[17] , PIN[19] , GIN[19] , GIN[21] , PHI , POUT[17] , GOUT[21] );
BLOCK2 U322 (PIN[18] , PIN[20] , GIN[20] , GIN[22] , PHI , POUT[18] , GOUT[22] );
BLOCK2 U323 (PIN[19] , PIN[21] , GIN[21] , GIN[23] , PHI , POUT[19] , GOUT[23] );
BLOCK2 U324 (PIN[20] , PIN[22] , GIN[22] , GIN[24] , PHI , POUT[20] , GOUT[24] );
BLOCK2 U325 (PIN[21] , PIN[23] , GIN[23] , GIN[25] , PHI , POUT[21] , GOUT[25] );
BLOCK2 U326 (PIN[22] , PIN[24] , GIN[24] , GIN[26] , PHI , POUT[22] , GOUT[26] );
BLOCK2 U327 (PIN[23] , PIN[25] , GIN[25] , GIN[27] , PHI , POUT[23] , GOUT[27] );
BLOCK2 U328 (PIN[24] , PIN[26] , GIN[26] , GIN[28] , PHI , POUT[24] , GOUT[28] );
BLOCK2 U329 (PIN[25] , PIN[27] , GIN[27] , GIN[29] , PHI , POUT[25] , GOUT[29] );
BLOCK2 U330 (PIN[26] , PIN[28] , GIN[28] , GIN[30] , PHI , POUT[26] , GOUT[30] );
BLOCK2 U331 (PIN[27] , PIN[29] , GIN[29] , GIN[31] , PHI , POUT[27] , GOUT[31] );
BLOCK2 U332 (PIN[28] , PIN[30] , GIN[30] , GIN[32] , PHI , POUT[28] , GOUT[32] );
BLOCK2 U333 (PIN[29] , PIN[31] , GIN[31] , GIN[33] , PHI , POUT[29] , GOUT[33] );
BLOCK2 U334 (PIN[30] , PIN[32] , GIN[32] , GIN[34] , PHI , POUT[30] , GOUT[34] );
BLOCK2 U335 (PIN[31] , PIN[33] , GIN[33] , GIN[35] , PHI , POUT[31] , GOUT[35] );
BLOCK2 U336 (PIN[32] , PIN[34] , GIN[34] , GIN[36] , PHI , POUT[32] , GOUT[36] );
BLOCK2 U337 (PIN[33] , PIN[35] , GIN[35] , GIN[37] , PHI , POUT[33] , GOUT[37] );
BLOCK2 U338 (PIN[34] , PIN[36] , GIN[36] , GIN[38] , PHI , POUT[34] , GOUT[38] );
BLOCK2 U339 (PIN[35] , PIN[37] , GIN[37] , GIN[39] , PHI , POUT[35] , GOUT[39] );
BLOCK2 U340 (PIN[36] , PIN[38] , GIN[38] , GIN[40] , PHI , POUT[36] , GOUT[40] );
BLOCK2 U341 (PIN[37] , PIN[39] , GIN[39] , GIN[41] , PHI , POUT[37] , GOUT[41] );
BLOCK2 U342 (PIN[38] , PIN[40] , GIN[40] , GIN[42] , PHI , POUT[38] , GOUT[42] );
BLOCK2 U343 (PIN[39] , PIN[41] , GIN[41] , GIN[43] , PHI , POUT[39] , GOUT[43] );
BLOCK2 U344 (PIN[40] , PIN[42] , GIN[42] , GIN[44] , PHI , POUT[40] , GOUT[44] );
BLOCK2 U345 (PIN[41] , PIN[43] , GIN[43] , GIN[45] , PHI , POUT[41] , GOUT[45] );
BLOCK2 U346 (PIN[42] , PIN[44] , GIN[44] , GIN[46] , PHI , POUT[42] , GOUT[46] );
BLOCK2 U347 (PIN[43] , PIN[45] , GIN[45] , GIN[47] , PHI , POUT[43] , GOUT[47] );
BLOCK2 U348 (PIN[44] , PIN[46] , GIN[46] , GIN[48] , PHI , POUT[44] , GOUT[48] );
BLOCK2 U349 (PIN[45] , PIN[47] , GIN[47] , GIN[49] , PHI , POUT[45] , GOUT[49] );
BLOCK2 U350 (PIN[46] , PIN[48] , GIN[48] , GIN[50] , PHI , POUT[46] , GOUT[50] );
BLOCK2 U351 (PIN[47] , PIN[49] , GIN[49] , GIN[51] , PHI , POUT[47] , GOUT[51] );
BLOCK2 U352 (PIN[48] , PIN[50] , GIN[50] , GIN[52] , PHI , POUT[48] , GOUT[52] );
BLOCK2 U353 (PIN[49] , PIN[51] , GIN[51] , GIN[53] , PHI , POUT[49] , GOUT[53] );
BLOCK2 U354 (PIN[50] , PIN[52] , GIN[52] , GIN[54] , PHI , POUT[50] , GOUT[54] );
BLOCK2 U355 (PIN[51] , PIN[53] , GIN[53] , GIN[55] , PHI , POUT[51] , GOUT[55] );
BLOCK2 U356 (PIN[52] , PIN[54] , GIN[54] , GIN[56] , PHI , POUT[52] , GOUT[56] );
BLOCK2 U357 (PIN[53] , PIN[55] , GIN[55] , GIN[57] , PHI , POUT[53] , GOUT[57] );
BLOCK2 U358 (PIN[54] , PIN[56] , GIN[56] , GIN[58] , PHI , POUT[54] , GOUT[58] );
BLOCK2 U359 (PIN[55] , PIN[57] , GIN[57] , GIN[59] , PHI , POUT[55] , GOUT[59] );
BLOCK2 U360 (PIN[56] , PIN[58] , GIN[58] , GIN[60] , PHI , POUT[56] , GOUT[60] );
BLOCK2 U361 (PIN[57] , PIN[59] , GIN[59] , GIN[61] , PHI , POUT[57] , GOUT[61] );
BLOCK2 U362 (PIN[58] , PIN[60] , GIN[60] , GIN[62] , PHI , POUT[58] , GOUT[62] );
BLOCK2 U363 (PIN[59] , PIN[61] , GIN[61] , GIN[63] , PHI , POUT[59] , GOUT[63] );
BLOCK2 U364 (PIN[60] , PIN[62] , GIN[62] , GIN[64] , PHI , POUT[60] , GOUT[64] );
endmodule
 
 
module DBLC_2_64 ( PIN, GIN, PHI, POUT, GOUT );
input [0:60] PIN;
input [0:64] GIN;
input PHI;
output [0:56] POUT;
output [0:64] GOUT;
INVBLOCK U10 (GIN[0] , PHI , GOUT[0] );
INVBLOCK U11 (GIN[1] , PHI , GOUT[1] );
INVBLOCK U12 (GIN[2] , PHI , GOUT[2] );
INVBLOCK U13 (GIN[3] , PHI , GOUT[3] );
BLOCK1A U24 (PIN[0] , GIN[0] , GIN[4] , PHI , GOUT[4] );
BLOCK1A U25 (PIN[1] , GIN[1] , GIN[5] , PHI , GOUT[5] );
BLOCK1A U26 (PIN[2] , GIN[2] , GIN[6] , PHI , GOUT[6] );
BLOCK1A U27 (PIN[3] , GIN[3] , GIN[7] , PHI , GOUT[7] );
BLOCK1 U38 (PIN[0] , PIN[4] , GIN[4] , GIN[8] , PHI , POUT[0] , GOUT[8] );
BLOCK1 U39 (PIN[1] , PIN[5] , GIN[5] , GIN[9] , PHI , POUT[1] , GOUT[9] );
BLOCK1 U310 (PIN[2] , PIN[6] , GIN[6] , GIN[10] , PHI , POUT[2] , GOUT[10] );
BLOCK1 U311 (PIN[3] , PIN[7] , GIN[7] , GIN[11] , PHI , POUT[3] , GOUT[11] );
BLOCK1 U312 (PIN[4] , PIN[8] , GIN[8] , GIN[12] , PHI , POUT[4] , GOUT[12] );
BLOCK1 U313 (PIN[5] , PIN[9] , GIN[9] , GIN[13] , PHI , POUT[5] , GOUT[13] );
BLOCK1 U314 (PIN[6] , PIN[10] , GIN[10] , GIN[14] , PHI , POUT[6] , GOUT[14] );
BLOCK1 U315 (PIN[7] , PIN[11] , GIN[11] , GIN[15] , PHI , POUT[7] , GOUT[15] );
BLOCK1 U316 (PIN[8] , PIN[12] , GIN[12] , GIN[16] , PHI , POUT[8] , GOUT[16] );
BLOCK1 U317 (PIN[9] , PIN[13] , GIN[13] , GIN[17] , PHI , POUT[9] , GOUT[17] );
BLOCK1 U318 (PIN[10] , PIN[14] , GIN[14] , GIN[18] , PHI , POUT[10] , GOUT[18] );
BLOCK1 U319 (PIN[11] , PIN[15] , GIN[15] , GIN[19] , PHI , POUT[11] , GOUT[19] );
BLOCK1 U320 (PIN[12] , PIN[16] , GIN[16] , GIN[20] , PHI , POUT[12] , GOUT[20] );
BLOCK1 U321 (PIN[13] , PIN[17] , GIN[17] , GIN[21] , PHI , POUT[13] , GOUT[21] );
BLOCK1 U322 (PIN[14] , PIN[18] , GIN[18] , GIN[22] , PHI , POUT[14] , GOUT[22] );
BLOCK1 U323 (PIN[15] , PIN[19] , GIN[19] , GIN[23] , PHI , POUT[15] , GOUT[23] );
BLOCK1 U324 (PIN[16] , PIN[20] , GIN[20] , GIN[24] , PHI , POUT[16] , GOUT[24] );
BLOCK1 U325 (PIN[17] , PIN[21] , GIN[21] , GIN[25] , PHI , POUT[17] , GOUT[25] );
BLOCK1 U326 (PIN[18] , PIN[22] , GIN[22] , GIN[26] , PHI , POUT[18] , GOUT[26] );
BLOCK1 U327 (PIN[19] , PIN[23] , GIN[23] , GIN[27] , PHI , POUT[19] , GOUT[27] );
BLOCK1 U328 (PIN[20] , PIN[24] , GIN[24] , GIN[28] , PHI , POUT[20] , GOUT[28] );
BLOCK1 U329 (PIN[21] , PIN[25] , GIN[25] , GIN[29] , PHI , POUT[21] , GOUT[29] );
BLOCK1 U330 (PIN[22] , PIN[26] , GIN[26] , GIN[30] , PHI , POUT[22] , GOUT[30] );
BLOCK1 U331 (PIN[23] , PIN[27] , GIN[27] , GIN[31] , PHI , POUT[23] , GOUT[31] );
BLOCK1 U332 (PIN[24] , PIN[28] , GIN[28] , GIN[32] , PHI , POUT[24] , GOUT[32] );
BLOCK1 U333 (PIN[25] , PIN[29] , GIN[29] , GIN[33] , PHI , POUT[25] , GOUT[33] );
BLOCK1 U334 (PIN[26] , PIN[30] , GIN[30] , GIN[34] , PHI , POUT[26] , GOUT[34] );
BLOCK1 U335 (PIN[27] , PIN[31] , GIN[31] , GIN[35] , PHI , POUT[27] , GOUT[35] );
BLOCK1 U336 (PIN[28] , PIN[32] , GIN[32] , GIN[36] , PHI , POUT[28] , GOUT[36] );
BLOCK1 U337 (PIN[29] , PIN[33] , GIN[33] , GIN[37] , PHI , POUT[29] , GOUT[37] );
BLOCK1 U338 (PIN[30] , PIN[34] , GIN[34] , GIN[38] , PHI , POUT[30] , GOUT[38] );
BLOCK1 U339 (PIN[31] , PIN[35] , GIN[35] , GIN[39] , PHI , POUT[31] , GOUT[39] );
BLOCK1 U340 (PIN[32] , PIN[36] , GIN[36] , GIN[40] , PHI , POUT[32] , GOUT[40] );
BLOCK1 U341 (PIN[33] , PIN[37] , GIN[37] , GIN[41] , PHI , POUT[33] , GOUT[41] );
BLOCK1 U342 (PIN[34] , PIN[38] , GIN[38] , GIN[42] , PHI , POUT[34] , GOUT[42] );
BLOCK1 U343 (PIN[35] , PIN[39] , GIN[39] , GIN[43] , PHI , POUT[35] , GOUT[43] );
BLOCK1 U344 (PIN[36] , PIN[40] , GIN[40] , GIN[44] , PHI , POUT[36] , GOUT[44] );
BLOCK1 U345 (PIN[37] , PIN[41] , GIN[41] , GIN[45] , PHI , POUT[37] , GOUT[45] );
BLOCK1 U346 (PIN[38] , PIN[42] , GIN[42] , GIN[46] , PHI , POUT[38] , GOUT[46] );
BLOCK1 U347 (PIN[39] , PIN[43] , GIN[43] , GIN[47] , PHI , POUT[39] , GOUT[47] );
BLOCK1 U348 (PIN[40] , PIN[44] , GIN[44] , GIN[48] , PHI , POUT[40] , GOUT[48] );
BLOCK1 U349 (PIN[41] , PIN[45] , GIN[45] , GIN[49] , PHI , POUT[41] , GOUT[49] );
BLOCK1 U350 (PIN[42] , PIN[46] , GIN[46] , GIN[50] , PHI , POUT[42] , GOUT[50] );
BLOCK1 U351 (PIN[43] , PIN[47] , GIN[47] , GIN[51] , PHI , POUT[43] , GOUT[51] );
BLOCK1 U352 (PIN[44] , PIN[48] , GIN[48] , GIN[52] , PHI , POUT[44] , GOUT[52] );
BLOCK1 U353 (PIN[45] , PIN[49] , GIN[49] , GIN[53] , PHI , POUT[45] , GOUT[53] );
BLOCK1 U354 (PIN[46] , PIN[50] , GIN[50] , GIN[54] , PHI , POUT[46] , GOUT[54] );
BLOCK1 U355 (PIN[47] , PIN[51] , GIN[51] , GIN[55] , PHI , POUT[47] , GOUT[55] );
BLOCK1 U356 (PIN[48] , PIN[52] , GIN[52] , GIN[56] , PHI , POUT[48] , GOUT[56] );
BLOCK1 U357 (PIN[49] , PIN[53] , GIN[53] , GIN[57] , PHI , POUT[49] , GOUT[57] );
BLOCK1 U358 (PIN[50] , PIN[54] , GIN[54] , GIN[58] , PHI , POUT[50] , GOUT[58] );
BLOCK1 U359 (PIN[51] , PIN[55] , GIN[55] , GIN[59] , PHI , POUT[51] , GOUT[59] );
BLOCK1 U360 (PIN[52] , PIN[56] , GIN[56] , GIN[60] , PHI , POUT[52] , GOUT[60] );
BLOCK1 U361 (PIN[53] , PIN[57] , GIN[57] , GIN[61] , PHI , POUT[53] , GOUT[61] );
BLOCK1 U362 (PIN[54] , PIN[58] , GIN[58] , GIN[62] , PHI , POUT[54] , GOUT[62] );
BLOCK1 U363 (PIN[55] , PIN[59] , GIN[59] , GIN[63] , PHI , POUT[55] , GOUT[63] );
BLOCK1 U364 (PIN[56] , PIN[60] , GIN[60] , GIN[64] , PHI , POUT[56] , GOUT[64] );
endmodule
 
 
module DBLC_3_64 ( PIN, GIN, PHI, POUT, GOUT );
input [0:56] PIN;
input [0:64] GIN;
input PHI;
output [0:48] POUT;
output [0:64] GOUT;
INVBLOCK U10 (GIN[0] , PHI , GOUT[0] );
INVBLOCK U11 (GIN[1] , PHI , GOUT[1] );
INVBLOCK U12 (GIN[2] , PHI , GOUT[2] );
INVBLOCK U13 (GIN[3] , PHI , GOUT[3] );
INVBLOCK U14 (GIN[4] , PHI , GOUT[4] );
INVBLOCK U15 (GIN[5] , PHI , GOUT[5] );
INVBLOCK U16 (GIN[6] , PHI , GOUT[6] );
INVBLOCK U17 (GIN[7] , PHI , GOUT[7] );
BLOCK2A U28 (PIN[0] , GIN[0] , GIN[8] , PHI , GOUT[8] );
BLOCK2A U29 (PIN[1] , GIN[1] , GIN[9] , PHI , GOUT[9] );
BLOCK2A U210 (PIN[2] , GIN[2] , GIN[10] , PHI , GOUT[10] );
BLOCK2A U211 (PIN[3] , GIN[3] , GIN[11] , PHI , GOUT[11] );
BLOCK2A U212 (PIN[4] , GIN[4] , GIN[12] , PHI , GOUT[12] );
BLOCK2A U213 (PIN[5] , GIN[5] , GIN[13] , PHI , GOUT[13] );
BLOCK2A U214 (PIN[6] , GIN[6] , GIN[14] , PHI , GOUT[14] );
BLOCK2A U215 (PIN[7] , GIN[7] , GIN[15] , PHI , GOUT[15] );
BLOCK2 U316 (PIN[0] , PIN[8] , GIN[8] , GIN[16] , PHI , POUT[0] , GOUT[16] );
BLOCK2 U317 (PIN[1] , PIN[9] , GIN[9] , GIN[17] , PHI , POUT[1] , GOUT[17] );
BLOCK2 U318 (PIN[2] , PIN[10] , GIN[10] , GIN[18] , PHI , POUT[2] , GOUT[18] );
BLOCK2 U319 (PIN[3] , PIN[11] , GIN[11] , GIN[19] , PHI , POUT[3] , GOUT[19] );
BLOCK2 U320 (PIN[4] , PIN[12] , GIN[12] , GIN[20] , PHI , POUT[4] , GOUT[20] );
BLOCK2 U321 (PIN[5] , PIN[13] , GIN[13] , GIN[21] , PHI , POUT[5] , GOUT[21] );
BLOCK2 U322 (PIN[6] , PIN[14] , GIN[14] , GIN[22] , PHI , POUT[6] , GOUT[22] );
BLOCK2 U323 (PIN[7] , PIN[15] , GIN[15] , GIN[23] , PHI , POUT[7] , GOUT[23] );
BLOCK2 U324 (PIN[8] , PIN[16] , GIN[16] , GIN[24] , PHI , POUT[8] , GOUT[24] );
BLOCK2 U325 (PIN[9] , PIN[17] , GIN[17] , GIN[25] , PHI , POUT[9] , GOUT[25] );
BLOCK2 U326 (PIN[10] , PIN[18] , GIN[18] , GIN[26] , PHI , POUT[10] , GOUT[26] );
BLOCK2 U327 (PIN[11] , PIN[19] , GIN[19] , GIN[27] , PHI , POUT[11] , GOUT[27] );
BLOCK2 U328 (PIN[12] , PIN[20] , GIN[20] , GIN[28] , PHI , POUT[12] , GOUT[28] );
BLOCK2 U329 (PIN[13] , PIN[21] , GIN[21] , GIN[29] , PHI , POUT[13] , GOUT[29] );
BLOCK2 U330 (PIN[14] , PIN[22] , GIN[22] , GIN[30] , PHI , POUT[14] , GOUT[30] );
BLOCK2 U331 (PIN[15] , PIN[23] , GIN[23] , GIN[31] , PHI , POUT[15] , GOUT[31] );
BLOCK2 U332 (PIN[16] , PIN[24] , GIN[24] , GIN[32] , PHI , POUT[16] , GOUT[32] );
BLOCK2 U333 (PIN[17] , PIN[25] , GIN[25] , GIN[33] , PHI , POUT[17] , GOUT[33] );
BLOCK2 U334 (PIN[18] , PIN[26] , GIN[26] , GIN[34] , PHI , POUT[18] , GOUT[34] );
BLOCK2 U335 (PIN[19] , PIN[27] , GIN[27] , GIN[35] , PHI , POUT[19] , GOUT[35] );
BLOCK2 U336 (PIN[20] , PIN[28] , GIN[28] , GIN[36] , PHI , POUT[20] , GOUT[36] );
BLOCK2 U337 (PIN[21] , PIN[29] , GIN[29] , GIN[37] , PHI , POUT[21] , GOUT[37] );
BLOCK2 U338 (PIN[22] , PIN[30] , GIN[30] , GIN[38] , PHI , POUT[22] , GOUT[38] );
BLOCK2 U339 (PIN[23] , PIN[31] , GIN[31] , GIN[39] , PHI , POUT[23] , GOUT[39] );
BLOCK2 U340 (PIN[24] , PIN[32] , GIN[32] , GIN[40] , PHI , POUT[24] , GOUT[40] );
BLOCK2 U341 (PIN[25] , PIN[33] , GIN[33] , GIN[41] , PHI , POUT[25] , GOUT[41] );
BLOCK2 U342 (PIN[26] , PIN[34] , GIN[34] , GIN[42] , PHI , POUT[26] , GOUT[42] );
BLOCK2 U343 (PIN[27] , PIN[35] , GIN[35] , GIN[43] , PHI , POUT[27] , GOUT[43] );
BLOCK2 U344 (PIN[28] , PIN[36] , GIN[36] , GIN[44] , PHI , POUT[28] , GOUT[44] );
BLOCK2 U345 (PIN[29] , PIN[37] , GIN[37] , GIN[45] , PHI , POUT[29] , GOUT[45] );
BLOCK2 U346 (PIN[30] , PIN[38] , GIN[38] , GIN[46] , PHI , POUT[30] , GOUT[46] );
BLOCK2 U347 (PIN[31] , PIN[39] , GIN[39] , GIN[47] , PHI , POUT[31] , GOUT[47] );
BLOCK2 U348 (PIN[32] , PIN[40] , GIN[40] , GIN[48] , PHI , POUT[32] , GOUT[48] );
BLOCK2 U349 (PIN[33] , PIN[41] , GIN[41] , GIN[49] , PHI , POUT[33] , GOUT[49] );
BLOCK2 U350 (PIN[34] , PIN[42] , GIN[42] , GIN[50] , PHI , POUT[34] , GOUT[50] );
BLOCK2 U351 (PIN[35] , PIN[43] , GIN[43] , GIN[51] , PHI , POUT[35] , GOUT[51] );
BLOCK2 U352 (PIN[36] , PIN[44] , GIN[44] , GIN[52] , PHI , POUT[36] , GOUT[52] );
BLOCK2 U353 (PIN[37] , PIN[45] , GIN[45] , GIN[53] , PHI , POUT[37] , GOUT[53] );
BLOCK2 U354 (PIN[38] , PIN[46] , GIN[46] , GIN[54] , PHI , POUT[38] , GOUT[54] );
BLOCK2 U355 (PIN[39] , PIN[47] , GIN[47] , GIN[55] , PHI , POUT[39] , GOUT[55] );
BLOCK2 U356 (PIN[40] , PIN[48] , GIN[48] , GIN[56] , PHI , POUT[40] , GOUT[56] );
BLOCK2 U357 (PIN[41] , PIN[49] , GIN[49] , GIN[57] , PHI , POUT[41] , GOUT[57] );
BLOCK2 U358 (PIN[42] , PIN[50] , GIN[50] , GIN[58] , PHI , POUT[42] , GOUT[58] );
BLOCK2 U359 (PIN[43] , PIN[51] , GIN[51] , GIN[59] , PHI , POUT[43] , GOUT[59] );
BLOCK2 U360 (PIN[44] , PIN[52] , GIN[52] , GIN[60] , PHI , POUT[44] , GOUT[60] );
BLOCK2 U361 (PIN[45] , PIN[53] , GIN[53] , GIN[61] , PHI , POUT[45] , GOUT[61] );
BLOCK2 U362 (PIN[46] , PIN[54] , GIN[54] , GIN[62] , PHI , POUT[46] , GOUT[62] );
BLOCK2 U363 (PIN[47] , PIN[55] , GIN[55] , GIN[63] , PHI , POUT[47] , GOUT[63] );
BLOCK2 U364 (PIN[48] , PIN[56] , GIN[56] , GIN[64] , PHI , POUT[48] , GOUT[64] );
endmodule
 
 
module DBLC_4_64 ( PIN, GIN, PHI, POUT, GOUT );
input [0:48] PIN;
input [0:64] GIN;
input PHI;
output [0:32] POUT;
output [0:64] GOUT;
INVBLOCK U10 (GIN[0] , PHI , GOUT[0] );
INVBLOCK U11 (GIN[1] , PHI , GOUT[1] );
INVBLOCK U12 (GIN[2] , PHI , GOUT[2] );
INVBLOCK U13 (GIN[3] , PHI , GOUT[3] );
INVBLOCK U14 (GIN[4] , PHI , GOUT[4] );
INVBLOCK U15 (GIN[5] , PHI , GOUT[5] );
INVBLOCK U16 (GIN[6] , PHI , GOUT[6] );
INVBLOCK U17 (GIN[7] , PHI , GOUT[7] );
INVBLOCK U18 (GIN[8] , PHI , GOUT[8] );
INVBLOCK U19 (GIN[9] , PHI , GOUT[9] );
INVBLOCK U110 (GIN[10] , PHI , GOUT[10] );
INVBLOCK U111 (GIN[11] , PHI , GOUT[11] );
INVBLOCK U112 (GIN[12] , PHI , GOUT[12] );
INVBLOCK U113 (GIN[13] , PHI , GOUT[13] );
INVBLOCK U114 (GIN[14] , PHI , GOUT[14] );
INVBLOCK U115 (GIN[15] , PHI , GOUT[15] );
BLOCK1A U216 (PIN[0] , GIN[0] , GIN[16] , PHI , GOUT[16] );
BLOCK1A U217 (PIN[1] , GIN[1] , GIN[17] , PHI , GOUT[17] );
BLOCK1A U218 (PIN[2] , GIN[2] , GIN[18] , PHI , GOUT[18] );
BLOCK1A U219 (PIN[3] , GIN[3] , GIN[19] , PHI , GOUT[19] );
BLOCK1A U220 (PIN[4] , GIN[4] , GIN[20] , PHI , GOUT[20] );
BLOCK1A U221 (PIN[5] , GIN[5] , GIN[21] , PHI , GOUT[21] );
BLOCK1A U222 (PIN[6] , GIN[6] , GIN[22] , PHI , GOUT[22] );
BLOCK1A U223 (PIN[7] , GIN[7] , GIN[23] , PHI , GOUT[23] );
BLOCK1A U224 (PIN[8] , GIN[8] , GIN[24] , PHI , GOUT[24] );
BLOCK1A U225 (PIN[9] , GIN[9] , GIN[25] , PHI , GOUT[25] );
BLOCK1A U226 (PIN[10] , GIN[10] , GIN[26] , PHI , GOUT[26] );
BLOCK1A U227 (PIN[11] , GIN[11] , GIN[27] , PHI , GOUT[27] );
BLOCK1A U228 (PIN[12] , GIN[12] , GIN[28] , PHI , GOUT[28] );
BLOCK1A U229 (PIN[13] , GIN[13] , GIN[29] , PHI , GOUT[29] );
BLOCK1A U230 (PIN[14] , GIN[14] , GIN[30] , PHI , GOUT[30] );
BLOCK1A U231 (PIN[15] , GIN[15] , GIN[31] , PHI , GOUT[31] );
BLOCK1 U332 (PIN[0] , PIN[16] , GIN[16] , GIN[32] , PHI , POUT[0] , GOUT[32] );
BLOCK1 U333 (PIN[1] , PIN[17] , GIN[17] , GIN[33] , PHI , POUT[1] , GOUT[33] );
BLOCK1 U334 (PIN[2] , PIN[18] , GIN[18] , GIN[34] , PHI , POUT[2] , GOUT[34] );
BLOCK1 U335 (PIN[3] , PIN[19] , GIN[19] , GIN[35] , PHI , POUT[3] , GOUT[35] );
BLOCK1 U336 (PIN[4] , PIN[20] , GIN[20] , GIN[36] , PHI , POUT[4] , GOUT[36] );
BLOCK1 U337 (PIN[5] , PIN[21] , GIN[21] , GIN[37] , PHI , POUT[5] , GOUT[37] );
BLOCK1 U338 (PIN[6] , PIN[22] , GIN[22] , GIN[38] , PHI , POUT[6] , GOUT[38] );
BLOCK1 U339 (PIN[7] , PIN[23] , GIN[23] , GIN[39] , PHI , POUT[7] , GOUT[39] );
BLOCK1 U340 (PIN[8] , PIN[24] , GIN[24] , GIN[40] , PHI , POUT[8] , GOUT[40] );
BLOCK1 U341 (PIN[9] , PIN[25] , GIN[25] , GIN[41] , PHI , POUT[9] , GOUT[41] );
BLOCK1 U342 (PIN[10] , PIN[26] , GIN[26] , GIN[42] , PHI , POUT[10] , GOUT[42] );
BLOCK1 U343 (PIN[11] , PIN[27] , GIN[27] , GIN[43] , PHI , POUT[11] , GOUT[43] );
BLOCK1 U344 (PIN[12] , PIN[28] , GIN[28] , GIN[44] , PHI , POUT[12] , GOUT[44] );
BLOCK1 U345 (PIN[13] , PIN[29] , GIN[29] , GIN[45] , PHI , POUT[13] , GOUT[45] );
BLOCK1 U346 (PIN[14] , PIN[30] , GIN[30] , GIN[46] , PHI , POUT[14] , GOUT[46] );
BLOCK1 U347 (PIN[15] , PIN[31] , GIN[31] , GIN[47] , PHI , POUT[15] , GOUT[47] );
BLOCK1 U348 (PIN[16] , PIN[32] , GIN[32] , GIN[48] , PHI , POUT[16] , GOUT[48] );
BLOCK1 U349 (PIN[17] , PIN[33] , GIN[33] , GIN[49] , PHI , POUT[17] , GOUT[49] );
BLOCK1 U350 (PIN[18] , PIN[34] , GIN[34] , GIN[50] , PHI , POUT[18] , GOUT[50] );
BLOCK1 U351 (PIN[19] , PIN[35] , GIN[35] , GIN[51] , PHI , POUT[19] , GOUT[51] );
BLOCK1 U352 (PIN[20] , PIN[36] , GIN[36] , GIN[52] , PHI , POUT[20] , GOUT[52] );
BLOCK1 U353 (PIN[21] , PIN[37] , GIN[37] , GIN[53] , PHI , POUT[21] , GOUT[53] );
BLOCK1 U354 (PIN[22] , PIN[38] , GIN[38] , GIN[54] , PHI , POUT[22] , GOUT[54] );
BLOCK1 U355 (PIN[23] , PIN[39] , GIN[39] , GIN[55] , PHI , POUT[23] , GOUT[55] );
BLOCK1 U356 (PIN[24] , PIN[40] , GIN[40] , GIN[56] , PHI , POUT[24] , GOUT[56] );
BLOCK1 U357 (PIN[25] , PIN[41] , GIN[41] , GIN[57] , PHI , POUT[25] , GOUT[57] );
BLOCK1 U358 (PIN[26] , PIN[42] , GIN[42] , GIN[58] , PHI , POUT[26] , GOUT[58] );
BLOCK1 U359 (PIN[27] , PIN[43] , GIN[43] , GIN[59] , PHI , POUT[27] , GOUT[59] );
BLOCK1 U360 (PIN[28] , PIN[44] , GIN[44] , GIN[60] , PHI , POUT[28] , GOUT[60] );
BLOCK1 U361 (PIN[29] , PIN[45] , GIN[45] , GIN[61] , PHI , POUT[29] , GOUT[61] );
BLOCK1 U362 (PIN[30] , PIN[46] , GIN[46] , GIN[62] , PHI , POUT[30] , GOUT[62] );
BLOCK1 U363 (PIN[31] , PIN[47] , GIN[47] , GIN[63] , PHI , POUT[31] , GOUT[63] );
BLOCK1 U364 (PIN[32] , PIN[48] , GIN[48] , GIN[64] , PHI , POUT[32] , GOUT[64] );
endmodule
 
 
module DBLC_5_64 ( PIN, GIN, PHI, POUT, GOUT );
input [0:32] PIN;
input [0:64] GIN;
input PHI;
output [0:0] POUT;
output [0:64] GOUT;
INVBLOCK U10 (GIN[0] , PHI , GOUT[0] );
INVBLOCK U11 (GIN[1] , PHI , GOUT[1] );
INVBLOCK U12 (GIN[2] , PHI , GOUT[2] );
INVBLOCK U13 (GIN[3] , PHI , GOUT[3] );
INVBLOCK U14 (GIN[4] , PHI , GOUT[4] );
INVBLOCK U15 (GIN[5] , PHI , GOUT[5] );
INVBLOCK U16 (GIN[6] , PHI , GOUT[6] );
INVBLOCK U17 (GIN[7] , PHI , GOUT[7] );
INVBLOCK U18 (GIN[8] , PHI , GOUT[8] );
INVBLOCK U19 (GIN[9] , PHI , GOUT[9] );
INVBLOCK U110 (GIN[10] , PHI , GOUT[10] );
INVBLOCK U111 (GIN[11] , PHI , GOUT[11] );
INVBLOCK U112 (GIN[12] , PHI , GOUT[12] );
INVBLOCK U113 (GIN[13] , PHI , GOUT[13] );
INVBLOCK U114 (GIN[14] , PHI , GOUT[14] );
INVBLOCK U115 (GIN[15] , PHI , GOUT[15] );
INVBLOCK U116 (GIN[16] , PHI , GOUT[16] );
INVBLOCK U117 (GIN[17] , PHI , GOUT[17] );
INVBLOCK U118 (GIN[18] , PHI , GOUT[18] );
INVBLOCK U119 (GIN[19] , PHI , GOUT[19] );
INVBLOCK U120 (GIN[20] , PHI , GOUT[20] );
INVBLOCK U121 (GIN[21] , PHI , GOUT[21] );
INVBLOCK U122 (GIN[22] , PHI , GOUT[22] );
INVBLOCK U123 (GIN[23] , PHI , GOUT[23] );
INVBLOCK U124 (GIN[24] , PHI , GOUT[24] );
INVBLOCK U125 (GIN[25] , PHI , GOUT[25] );
INVBLOCK U126 (GIN[26] , PHI , GOUT[26] );
INVBLOCK U127 (GIN[27] , PHI , GOUT[27] );
INVBLOCK U128 (GIN[28] , PHI , GOUT[28] );
INVBLOCK U129 (GIN[29] , PHI , GOUT[29] );
INVBLOCK U130 (GIN[30] , PHI , GOUT[30] );
INVBLOCK U131 (GIN[31] , PHI , GOUT[31] );
BLOCK2A U232 (PIN[0] , GIN[0] , GIN[32] , PHI , GOUT[32] );
BLOCK2A U233 (PIN[1] , GIN[1] , GIN[33] , PHI , GOUT[33] );
BLOCK2A U234 (PIN[2] , GIN[2] , GIN[34] , PHI , GOUT[34] );
BLOCK2A U235 (PIN[3] , GIN[3] , GIN[35] , PHI , GOUT[35] );
BLOCK2A U236 (PIN[4] , GIN[4] , GIN[36] , PHI , GOUT[36] );
BLOCK2A U237 (PIN[5] , GIN[5] , GIN[37] , PHI , GOUT[37] );
BLOCK2A U238 (PIN[6] , GIN[6] , GIN[38] , PHI , GOUT[38] );
BLOCK2A U239 (PIN[7] , GIN[7] , GIN[39] , PHI , GOUT[39] );
BLOCK2A U240 (PIN[8] , GIN[8] , GIN[40] , PHI , GOUT[40] );
BLOCK2A U241 (PIN[9] , GIN[9] , GIN[41] , PHI , GOUT[41] );
BLOCK2A U242 (PIN[10] , GIN[10] , GIN[42] , PHI , GOUT[42] );
BLOCK2A U243 (PIN[11] , GIN[11] , GIN[43] , PHI , GOUT[43] );
BLOCK2A U244 (PIN[12] , GIN[12] , GIN[44] , PHI , GOUT[44] );
BLOCK2A U245 (PIN[13] , GIN[13] , GIN[45] , PHI , GOUT[45] );
BLOCK2A U246 (PIN[14] , GIN[14] , GIN[46] , PHI , GOUT[46] );
BLOCK2A U247 (PIN[15] , GIN[15] , GIN[47] , PHI , GOUT[47] );
BLOCK2A U248 (PIN[16] , GIN[16] , GIN[48] , PHI , GOUT[48] );
BLOCK2A U249 (PIN[17] , GIN[17] , GIN[49] , PHI , GOUT[49] );
BLOCK2A U250 (PIN[18] , GIN[18] , GIN[50] , PHI , GOUT[50] );
BLOCK2A U251 (PIN[19] , GIN[19] , GIN[51] , PHI , GOUT[51] );
BLOCK2A U252 (PIN[20] , GIN[20] , GIN[52] , PHI , GOUT[52] );
BLOCK2A U253 (PIN[21] , GIN[21] , GIN[53] , PHI , GOUT[53] );
BLOCK2A U254 (PIN[22] , GIN[22] , GIN[54] , PHI , GOUT[54] );
BLOCK2A U255 (PIN[23] , GIN[23] , GIN[55] , PHI , GOUT[55] );
BLOCK2A U256 (PIN[24] , GIN[24] , GIN[56] , PHI , GOUT[56] );
BLOCK2A U257 (PIN[25] , GIN[25] , GIN[57] , PHI , GOUT[57] );
BLOCK2A U258 (PIN[26] , GIN[26] , GIN[58] , PHI , GOUT[58] );
BLOCK2A U259 (PIN[27] , GIN[27] , GIN[59] , PHI , GOUT[59] );
BLOCK2A U260 (PIN[28] , GIN[28] , GIN[60] , PHI , GOUT[60] );
BLOCK2A U261 (PIN[29] , GIN[29] , GIN[61] , PHI , GOUT[61] );
BLOCK2A U262 (PIN[30] , GIN[30] , GIN[62] , PHI , GOUT[62] );
BLOCK2A U263 (PIN[31] , GIN[31] , GIN[63] , PHI , GOUT[63] );
BLOCK2 U364 (PIN[0] , PIN[32] , GIN[32] , GIN[64] , PHI , POUT[0] , GOUT[64] );
endmodule
 
 
module XORSTAGE_64 ( A, B, PBIT, PHI, CARRY, SUM, COUT );
input [0:63] A;
input [0:63] B;
input PBIT;
input PHI;
input [0:64] CARRY;
output [0:63] SUM;
output COUT;
XXOR1 U20 (A[0] , B[0] , CARRY[0] , PHI , SUM[0] );
XXOR1 U21 (A[1] , B[1] , CARRY[1] , PHI , SUM[1] );
XXOR1 U22 (A[2] , B[2] , CARRY[2] , PHI , SUM[2] );
XXOR1 U23 (A[3] , B[3] , CARRY[3] , PHI , SUM[3] );
XXOR1 U24 (A[4] , B[4] , CARRY[4] , PHI , SUM[4] );
XXOR1 U25 (A[5] , B[5] , CARRY[5] , PHI , SUM[5] );
XXOR1 U26 (A[6] , B[6] , CARRY[6] , PHI , SUM[6] );
XXOR1 U27 (A[7] , B[7] , CARRY[7] , PHI , SUM[7] );
XXOR1 U28 (A[8] , B[8] , CARRY[8] , PHI , SUM[8] );
XXOR1 U29 (A[9] , B[9] , CARRY[9] , PHI , SUM[9] );
XXOR1 U210 (A[10] , B[10] , CARRY[10] , PHI , SUM[10] );
XXOR1 U211 (A[11] , B[11] , CARRY[11] , PHI , SUM[11] );
XXOR1 U212 (A[12] , B[12] , CARRY[12] , PHI , SUM[12] );
XXOR1 U213 (A[13] , B[13] , CARRY[13] , PHI , SUM[13] );
XXOR1 U214 (A[14] , B[14] , CARRY[14] , PHI , SUM[14] );
XXOR1 U215 (A[15] , B[15] , CARRY[15] , PHI , SUM[15] );
XXOR1 U216 (A[16] , B[16] , CARRY[16] , PHI , SUM[16] );
XXOR1 U217 (A[17] , B[17] , CARRY[17] , PHI , SUM[17] );
XXOR1 U218 (A[18] , B[18] , CARRY[18] , PHI , SUM[18] );
XXOR1 U219 (A[19] , B[19] , CARRY[19] , PHI , SUM[19] );
XXOR1 U220 (A[20] , B[20] , CARRY[20] , PHI , SUM[20] );
XXOR1 U221 (A[21] , B[21] , CARRY[21] , PHI , SUM[21] );
XXOR1 U222 (A[22] , B[22] , CARRY[22] , PHI , SUM[22] );
XXOR1 U223 (A[23] , B[23] , CARRY[23] , PHI , SUM[23] );
XXOR1 U224 (A[24] , B[24] , CARRY[24] , PHI , SUM[24] );
XXOR1 U225 (A[25] , B[25] , CARRY[25] , PHI , SUM[25] );
XXOR1 U226 (A[26] , B[26] , CARRY[26] , PHI , SUM[26] );
XXOR1 U227 (A[27] , B[27] , CARRY[27] , PHI , SUM[27] );
XXOR1 U228 (A[28] , B[28] , CARRY[28] , PHI , SUM[28] );
XXOR1 U229 (A[29] , B[29] , CARRY[29] , PHI , SUM[29] );
XXOR1 U230 (A[30] , B[30] , CARRY[30] , PHI , SUM[30] );
XXOR1 U231 (A[31] , B[31] , CARRY[31] , PHI , SUM[31] );
XXOR1 U232 (A[32] , B[32] , CARRY[32] , PHI , SUM[32] );
XXOR1 U233 (A[33] , B[33] , CARRY[33] , PHI , SUM[33] );
XXOR1 U234 (A[34] , B[34] , CARRY[34] , PHI , SUM[34] );
XXOR1 U235 (A[35] , B[35] , CARRY[35] , PHI , SUM[35] );
XXOR1 U236 (A[36] , B[36] , CARRY[36] , PHI , SUM[36] );
XXOR1 U237 (A[37] , B[37] , CARRY[37] , PHI , SUM[37] );
XXOR1 U238 (A[38] , B[38] , CARRY[38] , PHI , SUM[38] );
XXOR1 U239 (A[39] , B[39] , CARRY[39] , PHI , SUM[39] );
XXOR1 U240 (A[40] , B[40] , CARRY[40] , PHI , SUM[40] );
XXOR1 U241 (A[41] , B[41] , CARRY[41] , PHI , SUM[41] );
XXOR1 U242 (A[42] , B[42] , CARRY[42] , PHI , SUM[42] );
XXOR1 U243 (A[43] , B[43] , CARRY[43] , PHI , SUM[43] );
XXOR1 U244 (A[44] , B[44] , CARRY[44] , PHI , SUM[44] );
XXOR1 U245 (A[45] , B[45] , CARRY[45] , PHI , SUM[45] );
XXOR1 U246 (A[46] , B[46] , CARRY[46] , PHI , SUM[46] );
XXOR1 U247 (A[47] , B[47] , CARRY[47] , PHI , SUM[47] );
XXOR1 U248 (A[48] , B[48] , CARRY[48] , PHI , SUM[48] );
XXOR1 U249 (A[49] , B[49] , CARRY[49] , PHI , SUM[49] );
XXOR1 U250 (A[50] , B[50] , CARRY[50] , PHI , SUM[50] );
XXOR1 U251 (A[51] , B[51] , CARRY[51] , PHI , SUM[51] );
XXOR1 U252 (A[52] , B[52] , CARRY[52] , PHI , SUM[52] );
XXOR1 U253 (A[53] , B[53] , CARRY[53] , PHI , SUM[53] );
XXOR1 U254 (A[54] , B[54] , CARRY[54] , PHI , SUM[54] );
XXOR1 U255 (A[55] , B[55] , CARRY[55] , PHI , SUM[55] );
XXOR1 U256 (A[56] , B[56] , CARRY[56] , PHI , SUM[56] );
XXOR1 U257 (A[57] , B[57] , CARRY[57] , PHI , SUM[57] );
XXOR1 U258 (A[58] , B[58] , CARRY[58] , PHI , SUM[58] );
XXOR1 U259 (A[59] , B[59] , CARRY[59] , PHI , SUM[59] );
XXOR1 U260 (A[60] , B[60] , CARRY[60] , PHI , SUM[60] );
XXOR1 U261 (A[61] , B[61] , CARRY[61] , PHI , SUM[61] );
XXOR1 U262 (A[62] , B[62] , CARRY[62] , PHI , SUM[62] );
XXOR1 U263 (A[63] , B[63] , CARRY[63] , PHI , SUM[63] );
BLOCK1A U1 (PBIT , CARRY[0] , CARRY[64] , PHI , COUT );
endmodule
 
 
module DBLCTREE_64 ( PIN, GIN, PHI, GOUT, POUT );
input [0:63] PIN;
input [0:64] GIN;
input PHI;
output [0:64] GOUT;
output [0:0] POUT;
wire [0:62] INTPROP_0;
wire [0:64] INTGEN_0;
wire [0:60] INTPROP_1;
wire [0:64] INTGEN_1;
wire [0:56] INTPROP_2;
wire [0:64] INTGEN_2;
wire [0:48] INTPROP_3;
wire [0:64] INTGEN_3;
wire [0:32] INTPROP_4;
wire [0:64] INTGEN_4;
DBLC_0_64 U_0 (.PIN(PIN) , .GIN(GIN) , .PHI(PHI) , .POUT(INTPROP_0) , .GOUT(INTGEN_0) );
DBLC_1_64 U_1 (.PIN(INTPROP_0) , .GIN(INTGEN_0) , .PHI(PHI) , .POUT(INTPROP_1) , .GOUT(INTGEN_1) );
DBLC_2_64 U_2 (.PIN(INTPROP_1) , .GIN(INTGEN_1) , .PHI(PHI) , .POUT(INTPROP_2) , .GOUT(INTGEN_2) );
DBLC_3_64 U_3 (.PIN(INTPROP_2) , .GIN(INTGEN_2) , .PHI(PHI) , .POUT(INTPROP_3) , .GOUT(INTGEN_3) );
DBLC_4_64 U_4 (.PIN(INTPROP_3) , .GIN(INTGEN_3) , .PHI(PHI) , .POUT(INTPROP_4) , .GOUT(INTGEN_4) );
DBLC_5_64 U_5 (.PIN(INTPROP_4) , .GIN(INTGEN_4) , .PHI(PHI) , .POUT(POUT) , .GOUT(GOUT) );
endmodule
 
 
module DBLCADDER_64_64 ( OPA, OPB, CIN, PHI, SUM, COUT );
input [0:63] OPA;
input [0:63] OPB;
input CIN;
input PHI;
output [0:63] SUM;
output COUT;
wire [0:63] INTPROP;
wire [0:64] INTGEN;
wire [0:0] PBIT;
wire [0:64] CARRY;
PRESTAGE_64 U1 (OPA , OPB , CIN , PHI , INTPROP , INTGEN );
DBLCTREE_64 U2 (INTPROP , INTGEN , PHI , CARRY , PBIT );
XORSTAGE_64 U3 (OPA[0:63] , OPB[0:63] , PBIT[0] , PHI , CARRY[0:64] , SUM , COUT );
endmodule
 
 
module MULTIPLIER_33_32 ( MULTIPLICAND, MULTIPLIER, RST, CLK, PHI, RESULT );
input [0:32] MULTIPLICAND;
input [0:31] MULTIPLIER;
input RST;
input CLK;
input PHI;
output [0:63] RESULT;
wire [0:575] PPBIT;
wire [0:64] INT_CARRY;
wire [0:63] INT_SUM;
wire LOGIC_ZERO;
wire [0:63] ARESULT;
reg [0:63] RESULT;
assign LOGIC_ZERO = 0;
BOOTHCODER_33_32 B (.OPA(MULTIPLICAND[0:32]) , .OPB(MULTIPLIER[0:31]) , .SUMMAND(PPBIT[0:575]) );
WALLACE_33_32 W (.SUMMAND(PPBIT[0:575]) , .RST(RST), .CLK (CLK) , .CARRY(INT_CARRY[1:63]) , .SUM(INT_SUM[0:63]) );
assign INT_CARRY[0] = LOGIC_ZERO;
DBLCADDER_64_64 D (.OPA(INT_SUM[0:63]) , .OPB(INT_CARRY[0:63]) , .CIN (LOGIC_ZERO) , .PHI (PHI) , .SUM(ARESULT[0:63]), .COUT() );
always @(posedge CLK or posedge RST)
if (RST)
RESULT <= #1 64'h0000_0000_0000_0000;
else
RESULT <= ARESULT;
endmodule
 
 
// 32x32 multiplier, no input/output registers
// Registers inside Wallace trees every 8 full adder levels,
// with first pipeline after level 4
 
module or1200_amultp2_32x32 ( X, Y, RST, CLK, P );
input [31:0] X;
input [31:0] Y;
input RST;
input CLK;
output [63:0] P;
wire [0:32] A;
wire [0:31] B;
wire [0:63] Q;
assign A[0] = X[0];
assign A[1] = X[1];
assign A[2] = X[2];
assign A[3] = X[3];
assign A[4] = X[4];
assign A[5] = X[5];
assign A[6] = X[6];
assign A[7] = X[7];
assign A[8] = X[8];
assign A[9] = X[9];
assign A[10] = X[10];
assign A[11] = X[11];
assign A[12] = X[12];
assign A[13] = X[13];
assign A[14] = X[14];
assign A[15] = X[15];
assign A[16] = X[16];
assign A[17] = X[17];
assign A[18] = X[18];
assign A[19] = X[19];
assign A[20] = X[20];
assign A[21] = X[21];
assign A[22] = X[22];
assign A[23] = X[23];
assign A[24] = X[24];
assign A[25] = X[25];
assign A[26] = X[26];
assign A[27] = X[27];
assign A[28] = X[28];
assign A[29] = X[29];
assign A[30] = X[30];
assign A[31] = X[31];
assign A[32] = X[31];
assign B[0] = Y[0];
assign B[1] = Y[1];
assign B[2] = Y[2];
assign B[3] = Y[3];
assign B[4] = Y[4];
assign B[5] = Y[5];
assign B[6] = Y[6];
assign B[7] = Y[7];
assign B[8] = Y[8];
assign B[9] = Y[9];
assign B[10] = Y[10];
assign B[11] = Y[11];
assign B[12] = Y[12];
assign B[13] = Y[13];
assign B[14] = Y[14];
assign B[15] = Y[15];
assign B[16] = Y[16];
assign B[17] = Y[17];
assign B[18] = Y[18];
assign B[19] = Y[19];
assign B[20] = Y[20];
assign B[21] = Y[21];
assign B[22] = Y[22];
assign B[23] = Y[23];
assign B[24] = Y[24];
assign B[25] = Y[25];
assign B[26] = Y[26];
assign B[27] = Y[27];
assign B[28] = Y[28];
assign B[29] = Y[29];
assign B[30] = Y[30];
assign B[31] = Y[31];
assign P[0] = Q[0];
assign P[1] = Q[1];
assign P[2] = Q[2];
assign P[3] = Q[3];
assign P[4] = Q[4];
assign P[5] = Q[5];
assign P[6] = Q[6];
assign P[7] = Q[7];
assign P[8] = Q[8];
assign P[9] = Q[9];
assign P[10] = Q[10];
assign P[11] = Q[11];
assign P[12] = Q[12];
assign P[13] = Q[13];
assign P[14] = Q[14];
assign P[15] = Q[15];
assign P[16] = Q[16];
assign P[17] = Q[17];
assign P[18] = Q[18];
assign P[19] = Q[19];
assign P[20] = Q[20];
assign P[21] = Q[21];
assign P[22] = Q[22];
assign P[23] = Q[23];
assign P[24] = Q[24];
assign P[25] = Q[25];
assign P[26] = Q[26];
assign P[27] = Q[27];
assign P[28] = Q[28];
assign P[29] = Q[29];
assign P[30] = Q[30];
assign P[31] = Q[31];
assign P[32] = Q[32];
assign P[33] = Q[33];
assign P[34] = Q[34];
assign P[35] = Q[35];
assign P[36] = Q[36];
assign P[37] = Q[37];
assign P[38] = Q[38];
assign P[39] = Q[39];
assign P[40] = Q[40];
assign P[41] = Q[41];
assign P[42] = Q[42];
assign P[43] = Q[43];
assign P[44] = Q[44];
assign P[45] = Q[45];
assign P[46] = Q[46];
assign P[47] = Q[47];
assign P[48] = Q[48];
assign P[49] = Q[49];
assign P[50] = Q[50];
assign P[51] = Q[51];
assign P[52] = Q[52];
assign P[53] = Q[53];
assign P[54] = Q[54];
assign P[55] = Q[55];
assign P[56] = Q[56];
assign P[57] = Q[57];
assign P[58] = Q[58];
assign P[59] = Q[59];
assign P[60] = Q[60];
assign P[61] = Q[61];
assign P[62] = Q[62];
assign P[63] = Q[63];
MULTIPLIER_33_32 U1 (.MULTIPLICAND(A) , .MULTIPLIER(B) , .RST(RST), .CLK(CLK) , .PHI(1'b0) , .RESULT(Q) );
endmodule
 
`endif
/tags/rel_26/or1200/rtl/verilog/or1200_rf.v
0,0 → 1,393
//////////////////////////////////////////////////////////////////////
//// ////
//// OR1200's register file inside CPU ////
//// ////
//// This file is part of the OpenRISC 1200 project ////
//// http://www.opencores.org/cores/or1k/ ////
//// ////
//// Description ////
//// Instantiation of register file memories ////
//// ////
//// To Do: ////
//// - make it smaller and faster ////
//// ////
//// Author(s): ////
//// - Damjan Lampret, lampret@opencores.org ////
//// ////
//////////////////////////////////////////////////////////////////////
//// ////
//// Copyright (C) 2000 Authors and OPENCORES.ORG ////
//// ////
//// This source file may be used and distributed without ////
//// restriction provided that this copyright statement is not ////
//// removed from the file and that any derivative work contains ////
//// the original copyright notice and the associated disclaimer. ////
//// ////
//// This source file is free software; you can redistribute it ////
//// and/or modify it under the terms of the GNU Lesser General ////
//// Public License as published by the Free Software Foundation; ////
//// either version 2.1 of the License, or (at your option) any ////
//// later version. ////
//// ////
//// This source is distributed in the hope that it will be ////
//// useful, but WITHOUT ANY WARRANTY; without even the implied ////
//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR ////
//// PURPOSE. See the GNU Lesser General Public License for more ////
//// details. ////
//// ////
//// You should have received a copy of the GNU Lesser General ////
//// Public License along with this source; if not, download it ////
//// from http://www.opencores.org/lgpl.shtml ////
//// ////
//////////////////////////////////////////////////////////////////////
//
// CVS Revision History
//
// $Log: not supported by cvs2svn $
// Revision 1.2 2002/06/08 16:19:09 lampret
// Added generic flip-flop based memory macro instantiation.
//
// Revision 1.1 2002/01/03 08:16:15 lampret
// New prefixes for RTL files, prefixed module names. Updated cache controllers and MMUs.
//
// Revision 1.13 2001/11/20 18:46:15 simons
// Break point bug fixed
//
// Revision 1.12 2001/11/13 10:02:21 lampret
// Added 'setpc'. Renamed some signals (except_flushpipe into flushpipe etc)
//
// Revision 1.11 2001/11/12 01:45:40 lampret
// Moved flag bit into SR. Changed RF enable from constant enable to dynamic enable for read ports.
//
// Revision 1.10 2001/11/10 03:43:57 lampret
// Fixed exceptions.
//
// Revision 1.9 2001/10/21 17:57:16 lampret
// Removed params from generic_XX.v. Added translate_off/on in sprs.v and id.v. Removed spr_addr from dc.v and ic.v. Fixed CR+LF.
//
// Revision 1.8 2001/10/14 13:12:10 lampret
// MP3 version.
//
// Revision 1.1.1.1 2001/10/06 10:18:36 igorm
// no message
//
// Revision 1.3 2001/08/09 13:39:33 lampret
// Major clean-up.
//
// Revision 1.2 2001/07/22 03:31:54 lampret
// Fixed RAM's oen bug. Cache bypass under development.
//
// Revision 1.1 2001/07/20 00:46:21 lampret
// Development version of RTL. Libraries are missing.
//
//
 
// synopsys translate_off
`include "timescale.v"
// synopsys translate_on
`include "or1200_defines.v"
 
module or1200_rf(
// Clock and reset
clk, rst,
 
// Write i/f
supv, wb_freeze, addrw, dataw, we, flushpipe,
 
// Read i/f
id_freeze, addra, addrb, dataa, datab, rda, rdb,
 
// Debug
spr_cs, spr_write, spr_addr, spr_dat_i, spr_dat_o
);
 
parameter dw = `OR1200_OPERAND_WIDTH;
parameter aw = `OR1200_REGFILE_ADDR_WIDTH;
 
//
// I/O
//
 
//
// Clock and reset
//
input clk;
input rst;
 
//
// Write i/f
//
input supv;
input wb_freeze;
input [aw-1:0] addrw;
input [dw-1:0] dataw;
input we;
input flushpipe;
 
//
// Read i/f
//
input id_freeze;
input [aw-1:0] addra;
input [aw-1:0] addrb;
output [dw-1:0] dataa;
output [dw-1:0] datab;
input rda;
input rdb;
 
//
// SPR access for debugging purposes
//
input spr_cs;
input spr_write;
input [31:0] spr_addr;
input [31:0] spr_dat_i;
output [31:0] spr_dat_o;
 
//
// Internal wires and regs
//
wire [dw-1:0] from_rfa;
wire [dw-1:0] from_rfb;
reg [dw:0] dataa_saved;
reg [dw:0] datab_saved;
wire [aw-1:0] rf_addra;
wire [aw-1:0] rf_addrw;
wire [dw-1:0] rf_dataw;
wire rf_we;
wire spr_valid;
wire rf_ena;
wire rf_enb;
reg rf_we_allow;
 
//
// SPR access is valid when spr_cs is asserted and
// SPR address matches GPR addresses
//
assign spr_valid = spr_cs & (spr_addr[10:5] == `OR1200_SPR_RF);
 
//
// SPR data output is always from RF A
//
assign spr_dat_o = from_rfa;
 
//
// Operand A comes from RF or from saved A register
//
assign dataa = (dataa_saved[32]) ? dataa_saved[31:0] : from_rfa;
 
//
// Operand B comes from RF or from saved B register
//
assign datab = (datab_saved[32]) ? datab_saved[31:0] : from_rfb;
 
//
// RF A read address is either from SPRS or normal from CPU control
//
assign rf_addra = (spr_valid & !spr_write) ? spr_addr[4:0] : addra;
 
//
// RF write address is either from SPRS or normal from CPU control
//
assign rf_addrw = (spr_valid & spr_write) ? spr_addr[4:0] : addrw;
 
//
// RF write data is either from SPRS or normal from CPU datapath
//
assign rf_dataw = (spr_valid & spr_write) ? spr_dat_i : dataw;
 
//
// RF write enable is either from SPRS or normal from CPU control
//
always @(posedge rst or posedge clk)
if (rst)
rf_we_allow <= #1 1'b1;
else if (~wb_freeze)
rf_we_allow <= #1 ~flushpipe;
 
assign rf_we = ((spr_valid & spr_write) | (we & ~wb_freeze)) & rf_we_allow & (supv | (|rf_addrw));
 
//
// CS RF A asserted when instruction reads operand A and ID stage
// is not stalled
//
assign rf_ena = rda & ~id_freeze | spr_valid; // probably works with fixed binutils
// assign rf_ena = 1'b1; // does not work with single-stepping
//assign rf_ena = ~id_freeze | spr_valid; // works with broken binutils
 
//
// CS RF B asserted when instruction reads operand B and ID stage
// is not stalled
//
assign rf_enb = rdb & ~id_freeze | spr_valid;
// assign rf_enb = 1'b1;
//assign rf_enb = ~id_freeze | spr_valid; // works with broken binutils
 
//
// Stores operand from RF_A into temp reg when pipeline is frozen
//
always @(posedge clk or posedge rst)
if (rst) begin
dataa_saved <= #1 33'b0;
end
else if (id_freeze & !dataa_saved[32]) begin
dataa_saved <= #1 {1'b1, from_rfa};
end
else if (!id_freeze)
dataa_saved <= #1 33'b0;
 
//
// Stores operand from RF_B into temp reg when pipeline is frozen
//
always @(posedge clk or posedge rst)
if (rst) begin
datab_saved <= #1 33'b0;
end
else if (id_freeze & !datab_saved[32]) begin
datab_saved <= #1 {1'b1, from_rfb};
end
else if (!id_freeze)
datab_saved <= #1 33'b0;
 
`ifdef OR1200_RFRAM_TWOPORT
 
//
// Instantiation of register file two-port RAM A
//
or1200_tpram_32x32 rf_a(
// Port A
.clk_a(clk),
.rst_a(rst),
.ce_a(rf_ena),
.we_a(1'b0),
.oe_a(1'b1),
.addr_a(rf_addra),
.di_a(32'h0000_0000),
.do_a(from_rfa),
 
// Port B
.clk_b(clk),
.rst_b(rst),
.ce_b(rf_we),
.we_b(rf_we),
.oe_b(1'b0),
.addr_b(rf_addrw),
.di_b(rf_dataw),
.do_b()
);
 
//
// Instantiation of register file two-port RAM B
//
or1200_tpram_32x32 rf_b(
// Port A
.clk_a(clk),
.rst_a(rst),
.ce_a(rf_enb),
.we_a(1'b0),
.oe_a(1'b1),
.addr_a(addrb),
.di_a(32'h0000_0000),
.do_a(from_rfb),
 
// Port B
.clk_b(clk),
.rst_b(rst),
.ce_b(rf_we),
.we_b(rf_we),
.oe_b(1'b0),
.addr_b(rf_addrw),
.di_b(rf_dataw),
.do_b()
);
 
`else
 
`ifdef OR1200_RFRAM_DUALPORT
 
//
// Instantiation of register file two-port RAM A
//
or1200_dpram_32x32 rf_a(
// Port A
.clk_a(clk),
.rst_a(rst),
.ce_a(rf_ena),
.oe_a(1'b1),
.addr_a(rf_addra),
.do_a(from_rfa),
 
// Port B
.clk_b(clk),
.rst_b(rst),
.ce_b(rf_we),
.we_b(rf_we),
.addr_b(rf_addrw),
.di_b(rf_dataw)
);
 
//
// Instantiation of register file two-port RAM B
//
or1200_dpram_32x32 rf_b(
// Port A
.clk_a(clk),
.rst_a(rst),
.ce_a(rf_enb),
.oe_a(1'b1),
.addr_a(addrb),
.do_a(from_rfb),
 
// Port B
.clk_b(clk),
.rst_b(rst),
.ce_b(rf_we),
.we_b(rf_we),
.addr_b(rf_addrw),
.di_b(rf_dataw)
);
 
`else
 
`ifdef OR1200_RFRAM_GENERIC
 
//
// Instantiation of generic (flip-flop based) register file
//
or1200_rfram_generic rf_a(
// Clock and reset
.clk(clk),
.rst(rst),
 
// Port A
.ce_a(rf_ena),
.addr_a(rf_addra),
.do_a(from_rfa),
 
// Port B
.ce_b(rf_enb),
.addr_b(addrb),
.do_b(from_rfb),
 
// Port W
.ce_w(rf_we),
.we_w(rf_we),
.addr_w(rf_addrw),
.di_w(rf_dataw)
);
 
`else
 
//
// RFRAM type not specified
//
initial begin
$display("Define RFRAM type.");
$finish;
end
 
`endif
`endif
`endif
 
endmodule
/tags/rel_26/or1200/rtl/verilog/or1200_sb_fifo.v
0,0 → 1,144
//////////////////////////////////////////////////////////////////////
//// ////
//// OR1200's Store Buffer FIFO ////
//// ////
//// This file is part of the OpenRISC 1200 project ////
//// http://www.opencores.org/cores/or1k/ ////
//// ////
//// Description ////
//// Implementation of store buffer FIFO. ////
//// ////
//// To Do: ////
//// - N/A ////
//// ////
//// Author(s): ////
//// - Damjan Lampret, lampret@opencores.org ////
//// ////
//////////////////////////////////////////////////////////////////////
//// ////
//// Copyright (C) 2002 Authors and OPENCORES.ORG ////
//// ////
//// This source file may be used and distributed without ////
//// restriction provided that this copyright statement is not ////
//// removed from the file and that any derivative work contains ////
//// the original copyright notice and the associated disclaimer. ////
//// ////
//// This source file is free software; you can redistribute it ////
//// and/or modify it under the terms of the GNU Lesser General ////
//// Public License as published by the Free Software Foundation; ////
//// either version 2.1 of the License, or (at your option) any ////
//// later version. ////
//// ////
//// This source is distributed in the hope that it will be ////
//// useful, but WITHOUT ANY WARRANTY; without even the implied ////
//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR ////
//// PURPOSE. See the GNU Lesser General Public License for more ////
//// details. ////
//// ////
//// You should have received a copy of the GNU Lesser General ////
//// Public License along with this source; if not, download it ////
//// from http://www.opencores.org/lgpl.shtml ////
//// ////
//////////////////////////////////////////////////////////////////////
//
// CVS Revision History
//
// $Log: not supported by cvs2svn $
// Revision 1.2 2002/08/22 02:18:55 lampret
// Store buffer has been tested and it works. BY default it is still disabled until uClinux confirms correct operation on FPGA board.
//
// Revision 1.1 2002/08/18 19:53:08 lampret
// Added store buffer.
//
//
 
// synopsys translate_off
`include "timescale.v"
// synopsys translate_on
`include "or1200_defines.v"
 
module or1200_sb_fifo(
clk_i, rst_i, dat_i, wr_i, rd_i, dat_o, full_o, empty_o
);
 
parameter dw = 68;
parameter fw = `OR1200_SB_LOG;
parameter fl = `OR1200_SB_ENTRIES;
 
//
// FIFO signals
//
input clk_i; // Clock
input rst_i; // Reset
input [dw-1:0] dat_i; // Input data bus
input wr_i; // Write request
input rd_i; // Read request
output [dw-1:0] dat_o; // Output data bus
output full_o; // FIFO full
output empty_o;// FIFO empty
 
//
// Internal regs
//
reg [dw-1:0] mem [fl-1:0];
reg [dw-1:0] dat_o;
reg [fw+1:0] cntr;
reg [fw-1:0] wr_pntr;
reg [fw-1:0] rd_pntr;
reg empty_o;
reg full_o;
 
always @(posedge clk_i or posedge rst_i)
if (rst_i) begin
full_o <= #1 1'b0;
empty_o <= #1 1'b1;
wr_pntr <= #1 {fw{1'b0}};
rd_pntr <= #1 {fw{1'b0}};
cntr <= #1 {fw+2{1'b0}};
dat_o <= #1 {dw{1'b0}};
end
else if (wr_i && rd_i) begin // FIFO Read and Write
mem[wr_pntr] <= #1 dat_i;
if (wr_pntr >= fl-1)
wr_pntr <= #1 {fw{1'b0}};
else
wr_pntr <= #1 wr_pntr + 1'b1;
if (empty_o) begin
dat_o <= #1 dat_i;
end
else begin
dat_o <= #1 mem[rd_pntr];
end
if (rd_pntr >= fl-1)
rd_pntr <= #1 {fw{1'b0}};
else
rd_pntr <= #1 rd_pntr + 1'b1;
end
else if (wr_i && !full_o) begin // FIFO Write
mem[wr_pntr] <= #1 dat_i;
cntr <= #1 cntr + 1'b1;
empty_o <= #1 1'b0;
if (cntr >= (fl-1)) begin
full_o <= #1 1'b1;
cntr <= #1 fl;
end
if (wr_pntr >= fl-1)
wr_pntr <= #1 {fw{1'b0}};
else
wr_pntr <= #1 wr_pntr + 1'b1;
end
else if (rd_i && !empty_o) begin // FIFO Read
dat_o <= #1 mem[rd_pntr];
cntr <= #1 cntr - 1'b1;
full_o <= #1 1'b0;
if (cntr <= 1) begin
empty_o <= #1 1'b1;
cntr <= #1 {fw+2{1'b0}};
end
if (rd_pntr >= fl-1)
rd_pntr <= #1 {fw{1'b0}};
else
rd_pntr <= #1 rd_pntr + 1'b1;
end
 
endmodule
/tags/rel_26/or1200/rtl/verilog/or1200_mem2reg.v
0,0 → 1,433
//////////////////////////////////////////////////////////////////////
//// ////
//// OR1200's mem2reg alignment ////
//// ////
//// This file is part of the OpenRISC 1200 project ////
//// http://www.opencores.org/cores/or1k/ ////
//// ////
//// Description ////
//// Two versions of Memory to register data alignment. ////
//// ////
//// To Do: ////
//// - make it smaller and faster ////
//// ////
//// Author(s): ////
//// - Damjan Lampret, lampret@opencores.org ////
//// ////
//////////////////////////////////////////////////////////////////////
//// ////
//// Copyright (C) 2000 Authors and OPENCORES.ORG ////
//// ////
//// This source file may be used and distributed without ////
//// restriction provided that this copyright statement is not ////
//// removed from the file and that any derivative work contains ////
//// the original copyright notice and the associated disclaimer. ////
//// ////
//// This source file is free software; you can redistribute it ////
//// and/or modify it under the terms of the GNU Lesser General ////
//// Public License as published by the Free Software Foundation; ////
//// either version 2.1 of the License, or (at your option) any ////
//// later version. ////
//// ////
//// This source is distributed in the hope that it will be ////
//// useful, but WITHOUT ANY WARRANTY; without even the implied ////
//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR ////
//// PURPOSE. See the GNU Lesser General Public License for more ////
//// details. ////
//// ////
//// You should have received a copy of the GNU Lesser General ////
//// Public License along with this source; if not, download it ////
//// from http://www.opencores.org/lgpl.shtml ////
//// ////
//////////////////////////////////////////////////////////////////////
//
// CVS Revision History
//
// $Log: not supported by cvs2svn $
// Revision 1.4 2002/03/29 15:16:56 lampret
// Some of the warnings fixed.
//
// Revision 1.3 2002/03/28 19:14:10 lampret
// Changed define name from OR1200_MEM2REG_FAST to OR1200_IMPL_MEM2REG2
//
// Revision 1.2 2002/01/14 06:18:22 lampret
// Fixed mem2reg bug in FAST implementation. Updated debug unit to work with new genpc/if.
//
// Revision 1.1 2002/01/03 08:16:15 lampret
// New prefixes for RTL files, prefixed module names. Updated cache controllers and MMUs.
//
// Revision 1.9 2001/10/21 17:57:16 lampret
// Removed params from generic_XX.v. Added translate_off/on in sprs.v and id.v. Removed spr_addr from dc.v and ic.v. Fixed CR+LF.
//
// Revision 1.8 2001/10/19 23:28:46 lampret
// Fixed some synthesis warnings. Configured with caches and MMUs.
//
// Revision 1.7 2001/10/14 13:12:09 lampret
// MP3 version.
//
// Revision 1.1.1.1 2001/10/06 10:18:36 igorm
// no message
//
// Revision 1.2 2001/08/09 13:39:33 lampret
// Major clean-up.
//
// Revision 1.1 2001/07/20 00:46:03 lampret
// Development version of RTL. Libraries are missing.
//
//
 
// synopsys translate_off
`include "timescale.v"
// synopsys translate_on
`include "or1200_defines.v"
 
module or1200_mem2reg(addr, lsu_op, memdata, regdata);
 
parameter width = `OR1200_OPERAND_WIDTH;
 
//
// I/O
//
input [1:0] addr;
input [`OR1200_LSUOP_WIDTH-1:0] lsu_op;
input [width-1:0] memdata;
output [width-1:0] regdata;
 
 
//
// In the past faster implementation of mem2reg (today probably slower)
//
`ifdef OR1200_IMPL_MEM2REG2
 
`define OR1200_M2R_BYTE0 4'b0000
`define OR1200_M2R_BYTE1 4'b0001
`define OR1200_M2R_BYTE2 4'b0010
`define OR1200_M2R_BYTE3 4'b0011
`define OR1200_M2R_EXTB0 4'b0100
`define OR1200_M2R_EXTB1 4'b0101
`define OR1200_M2R_EXTB2 4'b0110
`define OR1200_M2R_EXTB3 4'b0111
`define OR1200_M2R_ZERO 4'b0000
 
reg [7:0] regdata_hh;
reg [7:0] regdata_hl;
reg [7:0] regdata_lh;
reg [7:0] regdata_ll;
reg [width-1:0] aligned;
reg [3:0] sel_byte0, sel_byte1,
sel_byte2, sel_byte3;
 
assign regdata = {regdata_hh, regdata_hl, regdata_lh, regdata_ll};
 
//
// Byte select 0
//
always @(addr or lsu_op) begin
casex({lsu_op[2:0], addr}) // synopsys parallel_case
{3'b01x, 2'b00}: // lbz/lbs 0
sel_byte0 = `OR1200_M2R_BYTE3; // take byte 3
{3'b01x, 2'b01}, // lbz/lbs 1
{3'b10x, 2'b00}: // lhz/lhs 0
sel_byte0 = `OR1200_M2R_BYTE2; // take byte 2
{3'b01x, 2'b10}: // lbz/lbs 2
sel_byte0 = `OR1200_M2R_BYTE1; // take byte 1
default: // all other cases
sel_byte0 = `OR1200_M2R_BYTE0; // take byte 0
endcase
end
 
//
// Byte select 1
//
always @(addr or lsu_op) begin
casex({lsu_op[2:0], addr}) // synopsys parallel_case
{3'b010, 2'bxx}: // lbz
sel_byte1 = `OR1200_M2R_ZERO; // zero extend
{3'b011, 2'b00}: // lbs 0
sel_byte1 = `OR1200_M2R_EXTB3; // sign extend from byte 3
{3'b011, 2'b01}: // lbs 1
sel_byte1 = `OR1200_M2R_EXTB2; // sign extend from byte 2
{3'b011, 2'b10}: // lbs 2
sel_byte1 = `OR1200_M2R_EXTB1; // sign extend from byte 1
{3'b011, 2'b11}: // lbs 3
sel_byte1 = `OR1200_M2R_EXTB0; // sign extend from byte 0
{3'b10x, 2'b00}: // lhz/lhs 0
sel_byte1 = `OR1200_M2R_BYTE3; // take byte 3
default: // all other cases
sel_byte1 = `OR1200_M2R_BYTE1; // take byte 1
endcase
end
 
//
// Byte select 2
//
always @(addr or lsu_op) begin
casex({lsu_op[2:0], addr}) // synopsys parallel_case
{3'b010, 2'bxx}, // lbz
{3'b100, 2'bxx}: // lhz
sel_byte2 = `OR1200_M2R_ZERO; // zero extend
{3'b011, 2'b00}, // lbs 0
{3'b101, 2'b00}: // lhs 0
sel_byte2 = `OR1200_M2R_EXTB3; // sign extend from byte 3
{3'b011, 2'b01}: // lbs 1
sel_byte2 = `OR1200_M2R_EXTB2; // sign extend from byte 2
{3'b011, 2'b10}, // lbs 2
{3'b101, 2'b10}: // lhs 0
sel_byte2 = `OR1200_M2R_EXTB1; // sign extend from byte 1
{3'b011, 2'b11}: // lbs 3
sel_byte2 = `OR1200_M2R_EXTB0; // sign extend from byte 0
default: // all other cases
sel_byte2 = `OR1200_M2R_BYTE2; // take byte 2
endcase
end
 
//
// Byte select 3
//
always @(addr or lsu_op) begin
casex({lsu_op[2:0], addr}) // synopsys parallel_case
{3'b010, 2'bxx}, // lbz
{3'b100, 2'bxx}: // lhz
sel_byte3 = `OR1200_M2R_ZERO; // zero extend
{3'b011, 2'b00}, // lbs 0
{3'b101, 2'b00}: // lhs 0
sel_byte3 = `OR1200_M2R_EXTB3; // sign extend from byte 3
{3'b011, 2'b01}: // lbs 1
sel_byte3 = `OR1200_M2R_EXTB2; // sign extend from byte 2
{3'b011, 2'b10}, // lbs 2
{3'b101, 2'b10}: // lhs 0
sel_byte3 = `OR1200_M2R_EXTB1; // sign extend from byte 1
{3'b011, 2'b11}: // lbs 3
sel_byte3 = `OR1200_M2R_EXTB0; // sign extend from byte 0
default: // all other cases
sel_byte3 = `OR1200_M2R_BYTE3; // take byte 3
endcase
end
 
//
// Byte 0
//
always @(sel_byte0 or memdata) begin
`ifdef OR1200_ADDITIONAL_SYNOPSYS_DIRECTIVES
`ifdef OR1200_CASE_DEFAULT
case(sel_byte0) // synopsys parallel_case infer_mux
`else
case(sel_byte0) // synopsys full_case parallel_case infer_mux
`endif
`else
`ifdef OR1200_CASE_DEFAULT
case(sel_byte0) // synopsys parallel_case
`else
case(sel_byte0) // synopsys full_case parallel_case
`endif
`endif
`OR1200_M2R_BYTE0: begin
regdata_ll = memdata[7:0];
end
`OR1200_M2R_BYTE1: begin
regdata_ll = memdata[15:8];
end
`OR1200_M2R_BYTE2: begin
regdata_ll = memdata[23:16];
end
`ifdef OR1200_CASE_DEFAULT
default: begin
`else
`OR1200_M2R_BYTE3: begin
`endif
regdata_ll = memdata[31:24];
end
endcase
end
 
//
// Byte 1
//
always @(sel_byte1 or memdata) begin
`ifdef OR1200_ADDITIONAL_SYNOPSYS_DIRECTIVES
`ifdef OR1200_CASE_DEFAULT
case(sel_byte1) // synopsys parallel_case infer_mux
`else
case(sel_byte1) // synopsys full_case parallel_case infer_mux
`endif
`else
`ifdef OR1200_CASE_DEFAULT
case(sel_byte1) // synopsys parallel_case
`else
case(sel_byte1) // synopsys full_case parallel_case
`endif
`endif
`OR1200_M2R_ZERO: begin
regdata_lh = 8'h00;
end
`OR1200_M2R_BYTE1: begin
regdata_lh = memdata[15:8];
end
`OR1200_M2R_BYTE3: begin
regdata_lh = memdata[31:24];
end
`OR1200_M2R_EXTB0: begin
regdata_lh = {8{memdata[7]}};
end
`OR1200_M2R_EXTB1: begin
regdata_lh = {8{memdata[15]}};
end
`OR1200_M2R_EXTB2: begin
regdata_lh = {8{memdata[23]}};
end
`ifdef OR1200_CASE_DEFAULT
default: begin
`else
`OR1200_M2R_EXTB3: begin
`endif
regdata_lh = {8{memdata[31]}};
end
endcase
end
 
//
// Byte 2
//
always @(sel_byte2 or memdata) begin
`ifdef OR1200_ADDITIONAL_SYNOPSYS_DIRECTIVES
`ifdef OR1200_CASE_DEFAULT
case(sel_byte2) // synopsys parallel_case infer_mux
`else
case(sel_byte2) // synopsys full_case parallel_case infer_mux
`endif
`else
`ifdef OR1200_CASE_DEFAULT
case(sel_byte2) // synopsys parallel_case
`else
case(sel_byte2) // synopsys full_case parallel_case
`endif
`endif
`OR1200_M2R_ZERO: begin
regdata_hl = 8'h00;
end
`OR1200_M2R_BYTE2: begin
regdata_hl = memdata[23:16];
end
`OR1200_M2R_EXTB0: begin
regdata_hl = {8{memdata[7]}};
end
`OR1200_M2R_EXTB1: begin
regdata_hl = {8{memdata[15]}};
end
`OR1200_M2R_EXTB2: begin
regdata_hl = {8{memdata[23]}};
end
`ifdef OR1200_CASE_DEFAULT
default: begin
`else
`OR1200_M2R_EXTB3: begin
`endif
regdata_hl = {8{memdata[31]}};
end
endcase
end
 
//
// Byte 3
//
always @(sel_byte3 or memdata) begin
`ifdef OR1200_ADDITIONAL_SYNOPSYS_DIRECTIVES
`ifdef OR1200_CASE_DEFAULT
case(sel_byte3) // synopsys parallel_case infer_mux
`else
case(sel_byte3) // synopsys full_case parallel_case infer_mux
`endif
`else
`ifdef OR1200_CASE_DEFAULT
case(sel_byte3) // synopsys parallel_case
`else
case(sel_byte3) // synopsys full_case parallel_case
`endif
`endif
`OR1200_M2R_ZERO: begin
regdata_hh = 8'h00;
end
`OR1200_M2R_BYTE3: begin
regdata_hh = memdata[31:24];
end
`OR1200_M2R_EXTB0: begin
regdata_hh = {8{memdata[7]}};
end
`OR1200_M2R_EXTB1: begin
regdata_hh = {8{memdata[15]}};
end
`OR1200_M2R_EXTB2: begin
regdata_hh = {8{memdata[23]}};
end
`ifdef OR1200_CASE_DEFAULT
`OR1200_M2R_EXTB3: begin
`else
`OR1200_M2R_EXTB3: begin
`endif
regdata_hh = {8{memdata[31]}};
end
endcase
end
 
`else
 
//
// Straightforward implementation of mem2reg
//
 
reg [width-1:0] regdata;
reg [width-1:0] aligned;
 
//
// Alignment
//
always @(addr or memdata) begin
`ifdef OR1200_ADDITIONAL_SYNOPSYS_DIRECTIVES
case(addr) // synopsys parallel_case infer_mux
`else
case(addr) // synopsys parallel_case
`endif
2'b00:
aligned = memdata;
2'b01:
aligned = {memdata[23:0], 8'b0};
2'b10:
aligned = {memdata[15:0], 16'b0};
2'b11:
aligned = {memdata[7:0], 24'b0};
endcase
end
 
//
// Bytes
//
always @(lsu_op or aligned) begin
`ifdef OR1200_ADDITIONAL_SYNOPSYS_DIRECTIVES
case(lsu_op) // synopsys parallel_case infer_mux
`else
case(lsu_op) // synopsys parallel_case
`endif
`OR1200_LSUOP_LBZ: begin
regdata[7:0] = aligned[31:24];
regdata[31:8] = 24'b0;
end
`OR1200_LSUOP_LBS: begin
regdata[7:0] = aligned[31:24];
regdata[31:8] = {24{aligned[31]}};
end
`OR1200_LSUOP_LHZ: begin
regdata[15:0] = aligned[31:16];
regdata[31:16] = 16'b0;
end
`OR1200_LSUOP_LHS: begin
regdata[15:0] = aligned[31:16];
regdata[31:16] = {16{aligned[31]}};
end
default:
regdata = aligned;
endcase
end
 
`endif
 
endmodule
/tags/rel_26/or1200/rtl/verilog/or1200_rfram_generic.v
0,0 → 1,249
//////////////////////////////////////////////////////////////////////
//// ////
//// OR1200's register file generic memory ////
//// ////
//// This file is part of the OpenRISC 1200 project ////
//// http://www.opencores.org/cores/or1k/ ////
//// ////
//// Description ////
//// Generic (flip-flop based) register file memory ////
//// ////
//// To Do: ////
//// - nothing ////
//// ////
//// Author(s): ////
//// - Damjan Lampret, lampret@opencores.org ////
//// ////
//////////////////////////////////////////////////////////////////////
//// ////
//// Copyright (C) 2000 Authors and OPENCORES.ORG ////
//// ////
//// This source file may be used and distributed without ////
//// restriction provided that this copyright statement is not ////
//// removed from the file and that any derivative work contains ////
//// the original copyright notice and the associated disclaimer. ////
//// ////
//// This source file is free software; you can redistribute it ////
//// and/or modify it under the terms of the GNU Lesser General ////
//// Public License as published by the Free Software Foundation; ////
//// either version 2.1 of the License, or (at your option) any ////
//// later version. ////
//// ////
//// This source is distributed in the hope that it will be ////
//// useful, but WITHOUT ANY WARRANTY; without even the implied ////
//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR ////
//// PURPOSE. See the GNU Lesser General Public License for more ////
//// details. ////
//// ////
//// You should have received a copy of the GNU Lesser General ////
//// Public License along with this source; if not, download it ////
//// from http://www.opencores.org/lgpl.shtml ////
//// ////
//////////////////////////////////////////////////////////////////////
//
// CVS Revision History
// $Log: not supported by cvs2svn $
// Revision 1.1 2002/06/08 16:23:30 lampret
// Generic flip-flop based memory macro for register file.
//
//
 
// synopsys translate_off
`include "timescale.v"
// synopsys translate_on
`include "or1200_defines.v"
 
module or1200_rfram_generic(
// Clock and reset
clk, rst,
 
// Port A
ce_a, addr_a, do_a,
 
// Port B
ce_b, addr_b, do_b,
 
// Port W
ce_w, we_w, addr_w, di_w
);
 
parameter dw = `OR1200_OPERAND_WIDTH;
parameter aw = `OR1200_REGFILE_ADDR_WIDTH;
 
//
// I/O
//
 
//
// Clock and reset
//
input clk;
input rst;
 
//
// Port A
//
input ce_a;
input [aw-1:0] addr_a;
output [dw-1:0] do_a;
 
//
// Port B
//
input ce_b;
input [aw-1:0] addr_b;
output [dw-1:0] do_b;
 
//
// Port W
//
input ce_w;
input we_w;
input [aw-1:0] addr_w;
input [dw-1:0] di_w;
 
//
// Internal wires and regs
//
reg [aw-1:0] intaddr_a;
reg [aw-1:0] intaddr_b;
reg [32*dw-1:0] mem;
reg [dw-1:0] do_a;
reg [dw-1:0] do_b;
 
//
// Write port
//
always @(posedge clk or posedge rst)
if (rst) begin
mem <= #1 1024'h0;
end
else if (ce_w & we_w)
case (addr_w) // synopsys parallel_case
5'd00: mem[32*0+31:32*0] <= #1 di_w;
5'd01: mem[32*1+31:32*1] <= #1 di_w;
5'd02: mem[32*2+31:32*2] <= #1 di_w;
5'd03: mem[32*3+31:32*3] <= #1 di_w;
5'd04: mem[32*4+31:32*4] <= #1 di_w;
5'd05: mem[32*5+31:32*5] <= #1 di_w;
5'd06: mem[32*6+31:32*6] <= #1 di_w;
5'd07: mem[32*7+31:32*7] <= #1 di_w;
5'd08: mem[32*8+31:32*8] <= #1 di_w;
5'd09: mem[32*9+31:32*9] <= #1 di_w;
5'd10: mem[32*10+31:32*10] <= #1 di_w;
5'd11: mem[32*11+31:32*11] <= #1 di_w;
5'd12: mem[32*12+31:32*12] <= #1 di_w;
5'd13: mem[32*13+31:32*13] <= #1 di_w;
5'd14: mem[32*14+31:32*14] <= #1 di_w;
5'd15: mem[32*15+31:32*15] <= #1 di_w;
5'd16: mem[32*16+31:32*16] <= #1 di_w;
5'd17: mem[32*17+31:32*17] <= #1 di_w;
5'd18: mem[32*18+31:32*18] <= #1 di_w;
5'd19: mem[32*19+31:32*19] <= #1 di_w;
5'd20: mem[32*20+31:32*20] <= #1 di_w;
5'd21: mem[32*21+31:32*21] <= #1 di_w;
5'd22: mem[32*22+31:32*22] <= #1 di_w;
5'd23: mem[32*23+31:32*23] <= #1 di_w;
5'd24: mem[32*24+31:32*24] <= #1 di_w;
5'd25: mem[32*25+31:32*25] <= #1 di_w;
5'd26: mem[32*26+31:32*26] <= #1 di_w;
5'd27: mem[32*27+31:32*27] <= #1 di_w;
5'd28: mem[32*28+31:32*28] <= #1 di_w;
5'd29: mem[32*29+31:32*29] <= #1 di_w;
5'd30: mem[32*30+31:32*30] <= #1 di_w;
default: mem[32*31+31:32*31] <= #1 di_w;
endcase
 
//
// Read port A
//
always @(posedge clk or posedge rst)
if (rst) begin
intaddr_a <= #1 5'h00;
end
else if (ce_a)
intaddr_a <= #1 addr_a;
 
always @(mem or intaddr_a)
case (intaddr_a) // synopsys parallel_case
5'd00: do_a = mem[32*0+31:32*0];
5'd01: do_a = mem[32*1+31:32*1];
5'd02: do_a = mem[32*2+31:32*2];
5'd03: do_a = mem[32*3+31:32*3];
5'd04: do_a = mem[32*4+31:32*4];
5'd05: do_a = mem[32*5+31:32*5];
5'd06: do_a = mem[32*6+31:32*6];
5'd07: do_a = mem[32*7+31:32*7];
5'd08: do_a = mem[32*8+31:32*8];
5'd09: do_a = mem[32*9+31:32*9];
5'd10: do_a = mem[32*10+31:32*10];
5'd11: do_a = mem[32*11+31:32*11];
5'd12: do_a = mem[32*12+31:32*12];
5'd13: do_a = mem[32*13+31:32*13];
5'd14: do_a = mem[32*14+31:32*14];
5'd15: do_a = mem[32*15+31:32*15];
5'd16: do_a = mem[32*16+31:32*16];
5'd17: do_a = mem[32*17+31:32*17];
5'd18: do_a = mem[32*18+31:32*18];
5'd19: do_a = mem[32*19+31:32*19];
5'd20: do_a = mem[32*20+31:32*20];
5'd21: do_a = mem[32*21+31:32*21];
5'd22: do_a = mem[32*22+31:32*22];
5'd23: do_a = mem[32*23+31:32*23];
5'd24: do_a = mem[32*24+31:32*24];
5'd25: do_a = mem[32*25+31:32*25];
5'd26: do_a = mem[32*26+31:32*26];
5'd27: do_a = mem[32*27+31:32*27];
5'd28: do_a = mem[32*28+31:32*28];
5'd29: do_a = mem[32*29+31:32*29];
5'd30: do_a = mem[32*30+31:32*30];
default: do_a = mem[32*31+31:32*31];
endcase
 
//
// Read port B
//
always @(posedge clk or posedge rst)
if (rst) begin
intaddr_b <= #1 5'h00;
end
else if (ce_b)
intaddr_b <= #1 addr_b;
 
always @(mem or intaddr_b)
case (intaddr_b) // synopsys parallel_case
5'd00: do_b = mem[32*0+31:32*0];
5'd01: do_b = mem[32*1+31:32*1];
5'd02: do_b = mem[32*2+31:32*2];
5'd03: do_b = mem[32*3+31:32*3];
5'd04: do_b = mem[32*4+31:32*4];
5'd05: do_b = mem[32*5+31:32*5];
5'd06: do_b = mem[32*6+31:32*6];
5'd07: do_b = mem[32*7+31:32*7];
5'd08: do_b = mem[32*8+31:32*8];
5'd09: do_b = mem[32*9+31:32*9];
5'd10: do_b = mem[32*10+31:32*10];
5'd11: do_b = mem[32*11+31:32*11];
5'd12: do_b = mem[32*12+31:32*12];
5'd13: do_b = mem[32*13+31:32*13];
5'd14: do_b = mem[32*14+31:32*14];
5'd15: do_b = mem[32*15+31:32*15];
5'd16: do_b = mem[32*16+31:32*16];
5'd17: do_b = mem[32*17+31:32*17];
5'd18: do_b = mem[32*18+31:32*18];
5'd19: do_b = mem[32*19+31:32*19];
5'd20: do_b = mem[32*20+31:32*20];
5'd21: do_b = mem[32*21+31:32*21];
5'd22: do_b = mem[32*22+31:32*22];
5'd23: do_b = mem[32*23+31:32*23];
5'd24: do_b = mem[32*24+31:32*24];
5'd25: do_b = mem[32*25+31:32*25];
5'd26: do_b = mem[32*26+31:32*26];
5'd27: do_b = mem[32*27+31:32*27];
5'd28: do_b = mem[32*28+31:32*28];
5'd29: do_b = mem[32*29+31:32*29];
5'd30: do_b = mem[32*30+31:32*30];
default: do_b = mem[32*31+31:32*31];
endcase
 
endmodule
/tags/rel_26/or1200/rtl/verilog/or1200_sb.v
0,0 → 1,193
//////////////////////////////////////////////////////////////////////
//// ////
//// OR1200's Store Buffer ////
//// ////
//// This file is part of the OpenRISC 1200 project ////
//// http://www.opencores.org/cores/or1k/ ////
//// ////
//// Description ////
//// Implements store buffer. ////
//// ////
//// To Do: ////
//// - byte combining ////
//// ////
//// Author(s): ////
//// - Damjan Lampret, lampret@opencores.org ////
//// ////
//////////////////////////////////////////////////////////////////////
//// ////
//// Copyright (C) 2002 Authors and OPENCORES.ORG ////
//// ////
//// This source file may be used and distributed without ////
//// restriction provided that this copyright statement is not ////
//// removed from the file and that any derivative work contains ////
//// the original copyright notice and the associated disclaimer. ////
//// ////
//// This source file is free software; you can redistribute it ////
//// and/or modify it under the terms of the GNU Lesser General ////
//// Public License as published by the Free Software Foundation; ////
//// either version 2.1 of the License, or (at your option) any ////
//// later version. ////
//// ////
//// This source is distributed in the hope that it will be ////
//// useful, but WITHOUT ANY WARRANTY; without even the implied ////
//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR ////
//// PURPOSE. See the GNU Lesser General Public License for more ////
//// details. ////
//// ////
//// You should have received a copy of the GNU Lesser General ////
//// Public License along with this source; if not, download it ////
//// from http://www.opencores.org/lgpl.shtml ////
//// ////
//////////////////////////////////////////////////////////////////////
//
// CVS Revision History
//
// $Log: not supported by cvs2svn $
// Revision 1.1 2002/08/18 19:53:08 lampret
// Added store buffer.
//
//
 
// synopsys translate_off
`include "timescale.v"
// synopsys translate_on
`include "or1200_defines.v"
 
module or1200_sb(
// RISC clock, reset
clk, rst,
 
// Internal RISC bus (DC<->SB)
dcsb_dat_i, dcsb_adr_i, dcsb_cyc_i, dcsb_stb_i, dcsb_we_i, dcsb_sel_i, dcsb_cab_i,
dcsb_dat_o, dcsb_ack_o, dcsb_err_o,
 
// BIU bus
sbbiu_dat_o, sbbiu_adr_o, sbbiu_cyc_o, sbbiu_stb_o, sbbiu_we_o, sbbiu_sel_o, sbbiu_cab_o,
sbbiu_dat_i, sbbiu_ack_i, sbbiu_err_i
);
 
parameter dw = `OR1200_OPERAND_WIDTH;
parameter aw = `OR1200_OPERAND_WIDTH;
 
//
// RISC clock, reset
//
input clk; // RISC clock
input rst; // RISC reset
 
//
// Internal RISC bus (DC<->SB)
//
input [dw-1:0] dcsb_dat_i; // input data bus
input [aw-1:0] dcsb_adr_i; // address bus
input dcsb_cyc_i; // WB cycle
input dcsb_stb_i; // WB strobe
input dcsb_we_i; // WB write enable
input dcsb_cab_i; // CAB input
input [3:0] dcsb_sel_i; // byte selects
output [dw-1:0] dcsb_dat_o; // output data bus
output dcsb_ack_o; // ack output
output dcsb_err_o; // err output
 
//
// BIU bus
//
output [dw-1:0] sbbiu_dat_o; // output data bus
output [aw-1:0] sbbiu_adr_o; // address bus
output sbbiu_cyc_o; // WB cycle
output sbbiu_stb_o; // WB strobe
output sbbiu_we_o; // WB write enable
output sbbiu_cab_o; // CAB input
output [3:0] sbbiu_sel_o; // byte selects
input [dw-1:0] sbbiu_dat_i; // input data bus
input sbbiu_ack_i; // ack output
input sbbiu_err_i; // err output
 
`ifdef OR1200_SB_IMPLEMENTED
 
//
// Internal wires and regs
//
wire [4+dw+aw-1:0] fifo_dat_i; // FIFO data in
wire [4+dw+aw-1:0] fifo_dat_o; // FIFO data out
wire fifo_wr;
wire fifo_rd;
wire fifo_full;
wire fifo_empty;
wire sel_sb;
reg outstanding_store;
reg fifo_wr_ack;
 
//
// FIFO data in/out
//
assign fifo_dat_i = {dcsb_sel_i, dcsb_dat_i, dcsb_adr_i};
assign {sbbiu_sel_o, sbbiu_dat_o, sbbiu_adr_o} = sel_sb ? fifo_dat_o : {dcsb_sel_i, dcsb_dat_i, dcsb_adr_i};
 
//
// Control
//
assign fifo_wr = dcsb_cyc_i & dcsb_stb_i & dcsb_we_i & ~fifo_full & ~fifo_wr_ack;
assign fifo_rd = ~outstanding_store;
assign dcsb_dat_o = sbbiu_dat_i;
assign dcsb_ack_o = sel_sb ? fifo_wr_ack : sbbiu_ack_i;
assign dcsb_err_o = sel_sb ? 1'b0 : sbbiu_err_i; // SB never returns error
assign sbbiu_cyc_o = sel_sb ? outstanding_store : dcsb_cyc_i;
assign sbbiu_stb_o = sel_sb ? outstanding_store : dcsb_stb_i;
assign sbbiu_we_o = sel_sb ? 1'b1 : dcsb_we_i;
assign sbbiu_cab_o = sel_sb ? 1'b0 : dcsb_cab_i;
assign sel_sb = ~fifo_empty | (fifo_empty & outstanding_store); // | fifo_wr;
 
//
// Store buffer FIFO instantiation
//
or1200_sb_fifo or1200_sb_fifo (
.clk_i(clk),
.rst_i(rst),
.dat_i(fifo_dat_i),
.wr_i(fifo_wr),
.rd_i(fifo_rd),
.dat_o(fifo_dat_o),
.full_o(fifo_full),
.empty_o(fifo_empty)
);
 
//
// fifo_rd
//
always @(posedge clk or posedge rst)
if (rst)
outstanding_store <= #1 1'b0;
else if (sbbiu_ack_i)
outstanding_store <= #1 1'b0;
else if (sel_sb | fifo_wr)
outstanding_store <= #1 1'b1;
 
//
// fifo_wr_ack
//
always @(posedge clk or posedge rst)
if (rst)
fifo_wr_ack <= #1 1'b0;
else if (fifo_wr)
fifo_wr_ack <= #1 1'b1;
else
fifo_wr_ack <= #1 1'b0;
 
`else // !OR1200_SB_IMPLEMENTED
 
assign sbbiu_dat_o = dcsb_dat_i;
assign sbbiu_adr_o = dcsb_adr_i;
assign sbbiu_cyc_o = dcsb_cyc_i;
assign sbbiu_stb_o = dcsb_stb_i;
assign sbbiu_we_o = dcsb_we_i;
assign sbbiu_cab_o = dcsb_cab_i;
assign sbbiu_sel_o = dcsb_sel_i;
assign dcsb_dat_o = sbbiu_dat_i;
assign dcsb_ack_o = sbbiu_ack_i;
assign dcsb_err_o = sbbiu_err_i;
 
`endif
 
endmodule
/tags/rel_26/or1200/rtl/verilog/or1200_gmultp2_32x32.v
0,0 → 1,131
//////////////////////////////////////////////////////////////////////
//// ////
//// Generic 32x32 multiplier ////
//// ////
//// This file is part of the OpenRISC 1200 project ////
//// http://www.opencores.org/cores/or1k/ ////
//// ////
//// Description ////
//// Generic 32x32 multiplier with pipeline stages. ////
//// ////
//// To Do: ////
//// - make it smaller and faster ////
//// ////
//// Author(s): ////
//// - Damjan Lampret, lampret@opencores.org ////
//// ////
//////////////////////////////////////////////////////////////////////
//// ////
//// Copyright (C) 2000 Authors and OPENCORES.ORG ////
//// ////
//// This source file may be used and distributed without ////
//// restriction provided that this copyright statement is not ////
//// removed from the file and that any derivative work contains ////
//// the original copyright notice and the associated disclaimer. ////
//// ////
//// This source file is free software; you can redistribute it ////
//// and/or modify it under the terms of the GNU Lesser General ////
//// Public License as published by the Free Software Foundation; ////
//// either version 2.1 of the License, or (at your option) any ////
//// later version. ////
//// ////
//// This source is distributed in the hope that it will be ////
//// useful, but WITHOUT ANY WARRANTY; without even the implied ////
//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR ////
//// PURPOSE. See the GNU Lesser General Public License for more ////
//// details. ////
//// ////
//// You should have received a copy of the GNU Lesser General ////
//// Public License along with this source; if not, download it ////
//// from http://www.opencores.org/lgpl.shtml ////
//// ////
//////////////////////////////////////////////////////////////////////
//
// CVS Revision History
//
// $Log: not supported by cvs2svn $
// Revision 1.1 2002/01/03 08:16:15 lampret
// New prefixes for RTL files, prefixed module names. Updated cache controllers and MMUs.
//
// Revision 1.4 2001/12/04 05:02:35 lampret
// Added OR1200_GENERIC_MULTP2_32X32 and OR1200_ASIC_MULTP2_32X32
//
// Revision 1.3 2001/10/21 17:57:16 lampret
// Removed params from generic_XX.v. Added translate_off/on in sprs.v and id.v. Removed spr_addr from dc.v and ic.v. Fixed CR+LF.
//
// Revision 1.2 2001/10/14 13:12:09 lampret
// MP3 version.
//
// Revision 1.1.1.1 2001/10/06 10:18:36 igorm
// no message
//
// Revision 1.2 2001/08/09 13:39:33 lampret
// Major clean-up.
//
// Revision 1.1 2001/07/20 00:46:03 lampret
// Development version of RTL. Libraries are missing.
//
//
 
// synopsys translate_off
`include "timescale.v"
// synopsys translate_on
`include "or1200_defines.v"
 
// 32x32 multiplier, no input/output registers
// Registers inside Wallace trees every 8 full adder levels,
// with first pipeline after level 4
 
`ifdef OR1200_GENERIC_MULTP2_32X32
 
`define OR1200_W 32
`define OR1200_WW 64
 
module or1200_gmultp2_32x32 ( X, Y, CLK, RST, P );
 
input [`OR1200_W-1:0] X;
input [`OR1200_W-1:0] Y;
input CLK;
input RST;
output [`OR1200_WW-1:0] P;
 
reg [`OR1200_WW-1:0] p0;
reg [`OR1200_WW-1:0] p1;
integer xi;
integer yi;
 
//
// Conversion unsigned to signed
//
always @(X)
xi <= X;
 
//
// Conversion unsigned to signed
//
always @(Y)
yi <= Y;
 
//
// First multiply stage
//
always @(posedge CLK or posedge RST)
if (RST)
p0 <= `OR1200_WW'b0;
else
p0 <= #1 xi * yi;
 
//
// Second multiply stage
//
always @(posedge CLK or posedge RST)
if (RST)
p1 <= `OR1200_WW'b0;
else
p1 <= #1 p0;
 
assign P = p1;
 
endmodule
 
`endif
/tags/rel_26/or1200/rtl/verilog/or1200_xcv_ram32x8d.v
0,0 → 1,588
//////////////////////////////////////////////////////////////////////
//// ////
//// Xilinx Virtex RAM 32x8D ////
//// ////
//// This file is part of the OpenRISC 1200 project ////
//// http://www.opencores.org/cores/or1k/ ////
//// ////
//// Description ////
//// Virtex dual-port memory ////
//// ////
//// To Do: ////
//// - make it smaller and faster ////
//// ////
//// Author(s): ////
//// - Damjan Lampret, lampret@opencores.org ////
//// ////
//////////////////////////////////////////////////////////////////////
//// ////
//// Copyright (C) 2000 Authors and OPENCORES.ORG ////
//// ////
//// This source file may be used and distributed without ////
//// restriction provided that this copyright statement is not ////
//// removed from the file and that any derivative work contains ////
//// the original copyright notice and the associated disclaimer. ////
//// ////
//// This source file is free software; you can redistribute it ////
//// and/or modify it under the terms of the GNU Lesser General ////
//// Public License as published by the Free Software Foundation; ////
//// either version 2.1 of the License, or (at your option) any ////
//// later version. ////
//// ////
//// This source is distributed in the hope that it will be ////
//// useful, but WITHOUT ANY WARRANTY; without even the implied ////
//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR ////
//// PURPOSE. See the GNU Lesser General Public License for more ////
//// details. ////
//// ////
//// You should have received a copy of the GNU Lesser General ////
//// Public License along with this source; if not, download it ////
//// from http://www.opencores.org/lgpl.shtml ////
//// ////
//////////////////////////////////////////////////////////////////////
//
// CVS Revision History
//
// $Log: not supported by cvs2svn $
// Revision 1.1 2002/01/03 08:16:15 lampret
// New prefixes for RTL files, prefixed module names. Updated cache controllers and MMUs.
//
// Revision 1.7 2001/10/21 17:57:16 lampret
// Removed params from generic_XX.v. Added translate_off/on in sprs.v and id.v. Removed spr_addr from dc.v and ic.v. Fixed CR+LF.
//
// Revision 1.6 2001/10/14 13:12:10 lampret
// MP3 version.
//
// Revision 1.1.1.1 2001/10/06 10:18:36 igorm
// no message
//
// Revision 1.1 2001/08/09 13:39:33 lampret
// Major clean-up.
//
//
 
// synopsys translate_off
`include "timescale.v"
// synopsys translate_on
`include "or1200_defines.v"
 
`ifdef OR1200_XILINX_RAM32X1D
`ifdef OR1200_USE_RAM16X1D_FOR_RAM32X1D
module or1200_xcv_ram32x8d
(
DPO,
SPO,
A,
D,
DPRA,
WCLK,
WE
);
output [7:0] DPO;
output [7:0] SPO;
input [4:0] A;
input [4:0] DPRA;
input [7:0] D;
input WCLK;
input WE;
 
wire [7:0] DPO_0;
wire [7:0] SPO_0;
 
wire [7:0] DPO_1;
wire [7:0] SPO_1;
 
wire WE_0 ;
wire WE_1 ;
 
assign DPO = DPRA[4] ? DPO_1 : DPO_0 ;
assign SPO = A[4] ? SPO_1 : SPO_0 ;
 
assign WE_0 = !A[4] && WE ;
assign WE_1 = A[4] && WE ;
 
RAM16X1D ram32x1d_0_0(
.DPO(DPO_0[0]),
.SPO(SPO_0[0]),
.A0(A[0]),
.A1(A[1]),
.A2(A[2]),
.A3(A[3]),
.D(D[0]),
.DPRA0(DPRA[0]),
.DPRA1(DPRA[1]),
.DPRA2(DPRA[2]),
.DPRA3(DPRA[3]),
.WCLK(WCLK),
.WE(WE_0)
);
 
//
// Instantiation of block 1
//
RAM16X1D ram32x1d_0_1(
.DPO(DPO_0[1]),
.SPO(SPO_0[1]),
.A0(A[0]),
.A1(A[1]),
.A2(A[2]),
.A3(A[3]),
.D(D[1]),
.DPRA0(DPRA[0]),
.DPRA1(DPRA[1]),
.DPRA2(DPRA[2]),
.DPRA3(DPRA[3]),
.WCLK(WCLK),
.WE(WE_0)
);
 
//
// Instantiation of block 2
//
RAM16X1D ram32x1d_0_2(
.DPO(DPO_0[2]),
.SPO(SPO_0[2]),
.A0(A[0]),
.A1(A[1]),
.A2(A[2]),
.A3(A[3]),
.D(D[2]),
.DPRA0(DPRA[0]),
.DPRA1(DPRA[1]),
.DPRA2(DPRA[2]),
.DPRA3(DPRA[3]),
.WCLK(WCLK),
.WE(WE_0)
);
 
//
// Instantiation of block 3
//
RAM16X1D ram32x1d_0_3(
.DPO(DPO_0[3]),
.SPO(SPO_0[3]),
.A0(A[0]),
.A1(A[1]),
.A2(A[2]),
.A3(A[3]),
.D(D[3]),
.DPRA0(DPRA[0]),
.DPRA1(DPRA[1]),
.DPRA2(DPRA[2]),
.DPRA3(DPRA[3]),
.WCLK(WCLK),
.WE(WE_0)
);
 
//
// Instantiation of block 4
//
RAM16X1D ram32x1d_0_4(
.DPO(DPO_0[4]),
.SPO(SPO_0[4]),
.A0(A[0]),
.A1(A[1]),
.A2(A[2]),
.A3(A[3]),
.D(D[4]),
.DPRA0(DPRA[0]),
.DPRA1(DPRA[1]),
.DPRA2(DPRA[2]),
.DPRA3(DPRA[3]),
.WCLK(WCLK),
.WE(WE_0)
);
 
//
// Instantiation of block 5
//
RAM16X1D ram32x1d_0_5(
.DPO(DPO_0[5]),
.SPO(SPO_0[5]),
.A0(A[0]),
.A1(A[1]),
.A2(A[2]),
.A3(A[3]),
.D(D[5]),
.DPRA0(DPRA[0]),
.DPRA1(DPRA[1]),
.DPRA2(DPRA[2]),
.DPRA3(DPRA[3]),
.WCLK(WCLK),
.WE(WE_0)
);
 
//
// Instantiation of block 6
//
RAM16X1D ram32x1d_0_6(
.DPO(DPO_0[6]),
.SPO(SPO_0[6]),
.A0(A[0]),
.A1(A[1]),
.A2(A[2]),
.A3(A[3]),
.D(D[6]),
.DPRA0(DPRA[0]),
.DPRA1(DPRA[1]),
.DPRA2(DPRA[2]),
.DPRA3(DPRA[3]),
.WCLK(WCLK),
.WE(WE_0)
);
 
//
// Instantiation of block 7
//
RAM16X1D ram32x1d_0_7(
.DPO(DPO_0[7]),
.SPO(SPO_0[7]),
.A0(A[0]),
.A1(A[1]),
.A2(A[2]),
.A3(A[3]),
.D(D[7]),
.DPRA0(DPRA[0]),
.DPRA1(DPRA[1]),
.DPRA2(DPRA[2]),
.DPRA3(DPRA[3]),
.WCLK(WCLK),
.WE(WE_0)
);
 
RAM16X1D ram32x1d_1_0(
.DPO(DPO_1[0]),
.SPO(SPO_1[0]),
.A0(A[0]),
.A1(A[1]),
.A2(A[2]),
.A3(A[3]),
.D(D[0]),
.DPRA0(DPRA[0]),
.DPRA1(DPRA[1]),
.DPRA2(DPRA[2]),
.DPRA3(DPRA[3]),
.WCLK(WCLK),
.WE(WE_1)
);
 
//
// Instantiation of block 1
//
RAM16X1D ram32x1d_1_1(
.DPO(DPO_1[1]),
.SPO(SPO_1[1]),
.A0(A[0]),
.A1(A[1]),
.A2(A[2]),
.A3(A[3]),
.D(D[1]),
.DPRA0(DPRA[0]),
.DPRA1(DPRA[1]),
.DPRA2(DPRA[2]),
.DPRA3(DPRA[3]),
.WCLK(WCLK),
.WE(WE_1)
);
 
//
// Instantiation of block 2
//
RAM16X1D ram32x1d_1_2(
.DPO(DPO_1[2]),
.SPO(SPO_1[2]),
.A0(A[0]),
.A1(A[1]),
.A2(A[2]),
.A3(A[3]),
.D(D[2]),
.DPRA0(DPRA[0]),
.DPRA1(DPRA[1]),
.DPRA2(DPRA[2]),
.DPRA3(DPRA[3]),
.WCLK(WCLK),
.WE(WE_1)
);
 
//
// Instantiation of block 3
//
RAM16X1D ram32x1d_1_3(
.DPO(DPO_1[3]),
.SPO(SPO_1[3]),
.A0(A[0]),
.A1(A[1]),
.A2(A[2]),
.A3(A[3]),
.D(D[3]),
.DPRA0(DPRA[0]),
.DPRA1(DPRA[1]),
.DPRA2(DPRA[2]),
.DPRA3(DPRA[3]),
.WCLK(WCLK),
.WE(WE_1)
);
 
//
// Instantiation of block 4
//
RAM16X1D ram32x1d_1_4(
.DPO(DPO_1[4]),
.SPO(SPO_1[4]),
.A0(A[0]),
.A1(A[1]),
.A2(A[2]),
.A3(A[3]),
.D(D[4]),
.DPRA0(DPRA[0]),
.DPRA1(DPRA[1]),
.DPRA2(DPRA[2]),
.DPRA3(DPRA[3]),
.WCLK(WCLK),
.WE(WE_1)
);
 
//
// Instantiation of block 5
//
RAM16X1D ram32x1d_1_5(
.DPO(DPO_1[5]),
.SPO(SPO_1[5]),
.A0(A[0]),
.A1(A[1]),
.A2(A[2]),
.A3(A[3]),
.D(D[5]),
.DPRA0(DPRA[0]),
.DPRA1(DPRA[1]),
.DPRA2(DPRA[2]),
.DPRA3(DPRA[3]),
.WCLK(WCLK),
.WE(WE_1)
);
 
//
// Instantiation of block 6
//
RAM16X1D ram32x1d_1_6(
.DPO(DPO_1[6]),
.SPO(SPO_1[6]),
.A0(A[0]),
.A1(A[1]),
.A2(A[2]),
.A3(A[3]),
.D(D[6]),
.DPRA0(DPRA[0]),
.DPRA1(DPRA[1]),
.DPRA2(DPRA[2]),
.DPRA3(DPRA[3]),
.WCLK(WCLK),
.WE(WE_1)
);
 
//
// Instantiation of block 7
//
RAM16X1D ram32x1d_1_7(
.DPO(DPO_1[7]),
.SPO(SPO_1[7]),
.A0(A[0]),
.A1(A[1]),
.A2(A[2]),
.A3(A[3]),
.D(D[7]),
.DPRA0(DPRA[0]),
.DPRA1(DPRA[1]),
.DPRA2(DPRA[2]),
.DPRA3(DPRA[3]),
.WCLK(WCLK),
.WE(WE_1)
);
endmodule
 
`else
 
module or1200_xcv_ram32x8d (DPO, SPO, A, D, DPRA, WCLK, WE);
 
//
// I/O
//
output [7:0] DPO;
output [7:0] SPO;
input [4:0] A;
input [4:0] DPRA;
input [7:0] D;
input WCLK;
input WE;
 
//
// Instantiation of block 0
//
RAM32X1D ram32x1d_0(
.DPO(DPO[0]),
.SPO(SPO[0]),
.A0(A[0]),
.A1(A[1]),
.A2(A[2]),
.A3(A[3]),
.A4(A[4]),
.D(D[0]),
.DPRA0(DPRA[0]),
.DPRA1(DPRA[1]),
.DPRA2(DPRA[2]),
.DPRA3(DPRA[3]),
.DPRA4(DPRA[4]),
.WCLK(WCLK),
.WE(WE)
);
 
//
// Instantiation of block 1
//
RAM32X1D ram32x1d_1(
.DPO(DPO[1]),
.SPO(SPO[1]),
.A0(A[0]),
.A1(A[1]),
.A2(A[2]),
.A3(A[3]),
.A4(A[4]),
.D(D[1]),
.DPRA0(DPRA[0]),
.DPRA1(DPRA[1]),
.DPRA2(DPRA[2]),
.DPRA3(DPRA[3]),
.DPRA4(DPRA[4]),
.WCLK(WCLK),
.WE(WE)
);
 
//
// Instantiation of block 2
//
RAM32X1D ram32x1d_2(
.DPO(DPO[2]),
.SPO(SPO[2]),
.A0(A[0]),
.A1(A[1]),
.A2(A[2]),
.A3(A[3]),
.A4(A[4]),
.D(D[2]),
.DPRA0(DPRA[0]),
.DPRA1(DPRA[1]),
.DPRA2(DPRA[2]),
.DPRA3(DPRA[3]),
.DPRA4(DPRA[4]),
.WCLK(WCLK),
.WE(WE)
);
 
//
// Instantiation of block 3
//
RAM32X1D ram32x1d_3(
.DPO(DPO[3]),
.SPO(SPO[3]),
.A0(A[0]),
.A1(A[1]),
.A2(A[2]),
.A3(A[3]),
.A4(A[4]),
.D(D[3]),
.DPRA0(DPRA[0]),
.DPRA1(DPRA[1]),
.DPRA2(DPRA[2]),
.DPRA3(DPRA[3]),
.DPRA4(DPRA[4]),
.WCLK(WCLK),
.WE(WE)
);
 
//
// Instantiation of block 4
//
RAM32X1D ram32x1d_4(
.DPO(DPO[4]),
.SPO(SPO[4]),
.A0(A[0]),
.A1(A[1]),
.A2(A[2]),
.A3(A[3]),
.A4(A[4]),
.D(D[4]),
.DPRA0(DPRA[0]),
.DPRA1(DPRA[1]),
.DPRA2(DPRA[2]),
.DPRA3(DPRA[3]),
.DPRA4(DPRA[4]),
.WCLK(WCLK),
.WE(WE)
);
 
//
// Instantiation of block 5
//
RAM32X1D ram32x1d_5(
.DPO(DPO[5]),
.SPO(SPO[5]),
.A0(A[0]),
.A1(A[1]),
.A2(A[2]),
.A3(A[3]),
.A4(A[4]),
.D(D[5]),
.DPRA0(DPRA[0]),
.DPRA1(DPRA[1]),
.DPRA2(DPRA[2]),
.DPRA3(DPRA[3]),
.DPRA4(DPRA[4]),
.WCLK(WCLK),
.WE(WE)
);
 
//
// Instantiation of block 6
//
RAM32X1D ram32x1d_6(
.DPO(DPO[6]),
.SPO(SPO[6]),
.A0(A[0]),
.A1(A[1]),
.A2(A[2]),
.A3(A[3]),
.A4(A[4]),
.D(D[6]),
.DPRA0(DPRA[0]),
.DPRA1(DPRA[1]),
.DPRA2(DPRA[2]),
.DPRA3(DPRA[3]),
.DPRA4(DPRA[4]),
.WCLK(WCLK),
.WE(WE)
);
 
//
// Instantiation of block 7
//
RAM32X1D ram32x1d_7(
.DPO(DPO[7]),
.SPO(SPO[7]),
.A0(A[0]),
.A1(A[1]),
.A2(A[2]),
.A3(A[3]),
.A4(A[4]),
.D(D[7]),
.DPRA0(DPRA[0]),
.DPRA1(DPRA[1]),
.DPRA2(DPRA[2]),
.DPRA3(DPRA[3]),
.DPRA4(DPRA[4]),
.WCLK(WCLK),
.WE(WE)
);
 
endmodule
`endif
`endif
/tags/rel_26/or1200/rtl/verilog/or1200_cfgr.v
0,0 → 1,231
//////////////////////////////////////////////////////////////////////
//// ////
//// OR1200's VR, UPR and Configuration Registers ////
//// ////
//// This file is part of the OpenRISC 1200 project ////
//// http://www.opencores.org/cores/or1k/ ////
//// ////
//// Description ////
//// According to OR1K architectural and OR1200 specifications. ////
//// ////
//// To Do: ////
//// - done ////
//// ////
//// Author(s): ////
//// - Damjan Lampret, lampret@opencores.org ////
//// ////
//////////////////////////////////////////////////////////////////////
//// ////
//// Copyright (C) 2000 Authors and OPENCORES.ORG ////
//// ////
//// This source file may be used and distributed without ////
//// restriction provided that this copyright statement is not ////
//// removed from the file and that any derivative work contains ////
//// the original copyright notice and the associated disclaimer. ////
//// ////
//// This source file is free software; you can redistribute it ////
//// and/or modify it under the terms of the GNU Lesser General ////
//// Public License as published by the Free Software Foundation; ////
//// either version 2.1 of the License, or (at your option) any ////
//// later version. ////
//// ////
//// This source is distributed in the hope that it will be ////
//// useful, but WITHOUT ANY WARRANTY; without even the implied ////
//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR ////
//// PURPOSE. See the GNU Lesser General Public License for more ////
//// details. ////
//// ////
//// You should have received a copy of the GNU Lesser General ////
//// Public License along with this source; if not, download it ////
//// from http://www.opencores.org/lgpl.shtml ////
//// ////
//////////////////////////////////////////////////////////////////////
//
// CVS Revision History
//
// $Log: not supported by cvs2svn $
// Revision 1.2 2002/01/14 06:18:22 lampret
// Fixed mem2reg bug in FAST implementation. Updated debug unit to work with new genpc/if.
//
// Revision 1.1 2002/01/03 08:16:15 lampret
// New prefixes for RTL files, prefixed module names. Updated cache controllers and MMUs.
//
// Revision 1.7 2001/10/21 17:57:16 lampret
// Removed params from generic_XX.v. Added translate_off/on in sprs.v and id.v. Removed spr_addr from dc.v and ic.v. Fixed CR+LF.
//
// Revision 1.6 2001/10/14 13:12:09 lampret
// MP3 version.
//
// Revision 1.1.1.1 2001/10/06 10:18:35 igorm
// no message
//
// Revision 1.1 2001/08/09 13:39:33 lampret
// Major clean-up.
//
// Revision 1.1 2001/07/20 00:46:21 lampret
// Development version of RTL. Libraries are missing.
//
//
 
// synopsys translate_off
`include "timescale.v"
// synopsys translate_on
`include "or1200_defines.v"
 
module or1200_cfgr(
// RISC Internal Interface
spr_addr, spr_dat_o
);
 
//
// RISC Internal Interface
//
input [31:0] spr_addr; // SPR Address
output [31:0] spr_dat_o; // SPR Read Data
 
//
// Internal wires & registers
//
reg [31:0] spr_dat_o; // SPR Read Data
 
`ifdef OR1200_CFGR_IMPLEMENTED
 
//
// Implementation of VR, UPR and configuration registers
//
always @(spr_addr)
`ifdef OR1200_SYS_FULL_DECODE
if (!spr_addr[31:4])
`endif
case(spr_addr[3:0]) // synopsys parallel_case
`OR1200_SPRGRP_SYS_VR: begin
spr_dat_o[`OR1200_VR_REV_BITS] = `OR1200_VR_REV;
spr_dat_o[`OR1200_VR_RES1_BITS] = `OR1200_VR_RES1;
spr_dat_o[`OR1200_VR_CFG_BITS] = `OR1200_VR_CFG;
spr_dat_o[`OR1200_VR_VER_BITS] = `OR1200_VR_VER;
end
`OR1200_SPRGRP_SYS_UPR: begin
spr_dat_o[`OR1200_UPR_UP_BITS] = `OR1200_UPR_UP;
spr_dat_o[`OR1200_UPR_DCP_BITS] = `OR1200_UPR_DCP;
spr_dat_o[`OR1200_UPR_ICP_BITS] = `OR1200_UPR_ICP;
spr_dat_o[`OR1200_UPR_DMP_BITS] = `OR1200_UPR_DMP;
spr_dat_o[`OR1200_UPR_IMP_BITS] = `OR1200_UPR_IMP;
spr_dat_o[`OR1200_UPR_MP_BITS] = `OR1200_UPR_MP;
spr_dat_o[`OR1200_UPR_DUP_BITS] = `OR1200_UPR_DUP;
spr_dat_o[`OR1200_UPR_PCUP_BITS] = `OR1200_UPR_PCUP;
spr_dat_o[`OR1200_UPR_PMP_BITS] = `OR1200_UPR_PMP;
spr_dat_o[`OR1200_UPR_PICP_BITS] = `OR1200_UPR_PICP;
spr_dat_o[`OR1200_UPR_TTP_BITS] = `OR1200_UPR_TTP;
spr_dat_o[`OR1200_UPR_RES1_BITS] = `OR1200_UPR_RES1;
spr_dat_o[`OR1200_UPR_CUP_BITS] = `OR1200_UPR_CUP;
end
`OR1200_SPRGRP_SYS_CPUCFGR: begin
spr_dat_o[`OR1200_CPUCFGR_NSGF_BITS] = `OR1200_CPUCFGR_NSGF;
spr_dat_o[`OR1200_CPUCFGR_HGF_BITS] = `OR1200_CPUCFGR_HGF;
spr_dat_o[`OR1200_CPUCFGR_OB32S_BITS] = `OR1200_CPUCFGR_OB32S;
spr_dat_o[`OR1200_CPUCFGR_OB64S_BITS] = `OR1200_CPUCFGR_OB64S;
spr_dat_o[`OR1200_CPUCFGR_OF32S_BITS] = `OR1200_CPUCFGR_OF32S;
spr_dat_o[`OR1200_CPUCFGR_OF64S_BITS] = `OR1200_CPUCFGR_OF64S;
spr_dat_o[`OR1200_CPUCFGR_OV64S_BITS] = `OR1200_CPUCFGR_OV64S;
spr_dat_o[`OR1200_CPUCFGR_RES1_BITS] = `OR1200_CPUCFGR_RES1;
end
`OR1200_SPRGRP_SYS_DMMUCFGR: begin
spr_dat_o[`OR1200_DMMUCFGR_NTW_BITS] = `OR1200_DMMUCFGR_NTW;
spr_dat_o[`OR1200_DMMUCFGR_NTS_BITS] = `OR1200_DMMUCFGR_NTS;
spr_dat_o[`OR1200_DMMUCFGR_NAE_BITS] = `OR1200_DMMUCFGR_NAE;
spr_dat_o[`OR1200_DMMUCFGR_CRI_BITS] = `OR1200_DMMUCFGR_CRI;
spr_dat_o[`OR1200_DMMUCFGR_PRI_BITS] = `OR1200_DMMUCFGR_PRI;
spr_dat_o[`OR1200_DMMUCFGR_TEIRI_BITS] = `OR1200_DMMUCFGR_TEIRI;
spr_dat_o[`OR1200_DMMUCFGR_HTR_BITS] = `OR1200_DMMUCFGR_HTR;
spr_dat_o[`OR1200_DMMUCFGR_RES1_BITS] = `OR1200_DMMUCFGR_RES1;
end
`OR1200_SPRGRP_SYS_IMMUCFGR: begin
spr_dat_o[`OR1200_IMMUCFGR_NTW_BITS] = `OR1200_IMMUCFGR_NTW;
spr_dat_o[`OR1200_IMMUCFGR_NTS_BITS] = `OR1200_IMMUCFGR_NTS;
spr_dat_o[`OR1200_IMMUCFGR_NAE_BITS] = `OR1200_IMMUCFGR_NAE;
spr_dat_o[`OR1200_IMMUCFGR_CRI_BITS] = `OR1200_IMMUCFGR_CRI;
spr_dat_o[`OR1200_IMMUCFGR_PRI_BITS] = `OR1200_IMMUCFGR_PRI;
spr_dat_o[`OR1200_IMMUCFGR_TEIRI_BITS] = `OR1200_IMMUCFGR_TEIRI;
spr_dat_o[`OR1200_IMMUCFGR_HTR_BITS] = `OR1200_IMMUCFGR_HTR;
spr_dat_o[`OR1200_IMMUCFGR_RES1_BITS] = `OR1200_IMMUCFGR_RES1;
end
`OR1200_SPRGRP_SYS_DCCFGR: begin
spr_dat_o[`OR1200_DCCFGR_NCW_BITS] = `OR1200_DCCFGR_NCW;
spr_dat_o[`OR1200_DCCFGR_NCS_BITS] = `OR1200_DCCFGR_NCS;
spr_dat_o[`OR1200_DCCFGR_CBS_BITS] = `OR1200_DCCFGR_CBS;
spr_dat_o[`OR1200_DCCFGR_CWS_BITS] = `OR1200_DCCFGR_CWS;
spr_dat_o[`OR1200_DCCFGR_CCRI_BITS] = `OR1200_DCCFGR_CCRI;
spr_dat_o[`OR1200_DCCFGR_CBIRI_BITS] = `OR1200_DCCFGR_CBIRI;
spr_dat_o[`OR1200_DCCFGR_CBPRI_BITS] = `OR1200_DCCFGR_CBPRI;
spr_dat_o[`OR1200_DCCFGR_CBLRI_BITS] = `OR1200_DCCFGR_CBLRI;
spr_dat_o[`OR1200_DCCFGR_CBFRI_BITS] = `OR1200_DCCFGR_CBFRI;
spr_dat_o[`OR1200_DCCFGR_CBWBRI_BITS] = `OR1200_DCCFGR_CBWBRI;
spr_dat_o[`OR1200_DCCFGR_RES1_BITS] = `OR1200_DCCFGR_RES1;
end
`OR1200_SPRGRP_SYS_ICCFGR: begin
spr_dat_o[`OR1200_ICCFGR_NCW_BITS] = `OR1200_ICCFGR_NCW;
spr_dat_o[`OR1200_ICCFGR_NCS_BITS] = `OR1200_ICCFGR_NCS;
spr_dat_o[`OR1200_ICCFGR_CBS_BITS] = `OR1200_ICCFGR_CBS;
spr_dat_o[`OR1200_ICCFGR_CWS_BITS] = `OR1200_ICCFGR_CWS;
spr_dat_o[`OR1200_ICCFGR_CCRI_BITS] = `OR1200_ICCFGR_CCRI;
spr_dat_o[`OR1200_ICCFGR_CBIRI_BITS] = `OR1200_ICCFGR_CBIRI;
spr_dat_o[`OR1200_ICCFGR_CBPRI_BITS] = `OR1200_ICCFGR_CBPRI;
spr_dat_o[`OR1200_ICCFGR_CBLRI_BITS] = `OR1200_ICCFGR_CBLRI;
spr_dat_o[`OR1200_ICCFGR_CBFRI_BITS] = `OR1200_ICCFGR_CBFRI;
spr_dat_o[`OR1200_ICCFGR_CBWBRI_BITS] = `OR1200_ICCFGR_CBWBRI;
spr_dat_o[`OR1200_ICCFGR_RES1_BITS] = `OR1200_ICCFGR_RES1;
end
`OR1200_SPRGRP_SYS_DCFGR: begin
spr_dat_o[`OR1200_DCFGR_NDP_BITS] = `OR1200_DCFGR_NDP;
spr_dat_o[`OR1200_DCFGR_WPCI_BITS] = `OR1200_DCFGR_WPCI;
spr_dat_o[`OR1200_DCFGR_RES1_BITS] = `OR1200_DCFGR_RES1;
end
default: spr_dat_o = 32'h0000_0000;
endcase
`ifdef OR1200_SYS_FULL_DECODE
else
spr_dat_o = 32'h0000_0000;
`endif
 
`else
 
//
// When configuration registers are not implemented, only
// implement VR and UPR
//
always @(spr_addr)
`ifdef OR1200_SYS_FULL_DECODE
if (!spr_addr[31:4])
`endif
case(spr_addr[3:0])
`OR1200_SPRGRP_SYS_VR: begin
spr_dat_o[`OR1200_VR_REV_BITS] = `OR1200_VR_REV;
spr_dat_o[`OR1200_VR_RES1_BITS] = `OR1200_VR_RES1;
spr_dat_o[`OR1200_VR_CFG_BITS] = `OR1200_VR_CFG;
spr_dat_o[`OR1200_VR_VER_BITS] = `OR1200_VR_VER;
end
`OR1200_SPRGRP_SYS_UPR: begin
spr_dat_o[`OR1200_UPR_UP_BITS] = `OR1200_UPR_UP;
spr_dat_o[`OR1200_UPR_DCP_BITS] = `OR1200_UPR_DCP;
spr_dat_o[`OR1200_UPR_ICP_BITS] = `OR1200_UPR_ICP;
spr_dat_o[`OR1200_UPR_DMP_BITS] = `OR1200_UPR_DMP;
spr_dat_o[`OR1200_UPR_IMP_BITS] = `OR1200_UPR_IMP;
spr_dat_o[`OR1200_UPR_MP_BITS] = `OR1200_UPR_MP;
spr_dat_o[`OR1200_UPR_DUP_BITS] = `OR1200_UPR_DUP;
spr_dat_o[`OR1200_UPR_PCUP_BITS] = `OR1200_UPR_PCUP;
spr_dat_o[`OR1200_UPR_PMP_BITS] = `OR1200_UPR_PMP;
spr_dat_o[`OR1200_UPR_PICP_BITS] = `OR1200_UPR_PICP;
spr_dat_o[`OR1200_UPR_TTP_BITS] = `OR1200_UPR_TTP;
spr_dat_o[`OR1200_UPR_RES1_BITS] = `OR1200_UPR_RES1;
spr_dat_o[`OR1200_UPR_CUP_BITS] = `OR1200_UPR_CUP;
end
default: spr_dat_o = 32'h0000_0000;
endcase
`ifdef OR1200_SYS_FULL_DECODE
else
spr_dat_o = 32'h0000_0000;
`endif
 
`endif
 
endmodule
/tags/rel_26/or1200/rtl/verilog/or1200_tt.v
0,0 → 1,220
//////////////////////////////////////////////////////////////////////
//// ////
//// OR1200's Tick Timer ////
//// ////
//// This file is part of the OpenRISC 1200 project ////
//// http://www.opencores.org/cores/or1k/ ////
//// ////
//// Description ////
//// TT according to OR1K architectural specification. ////
//// ////
//// To Do: ////
//// None ////
//// ////
//// Author(s): ////
//// - Damjan Lampret, lampret@opencores.org ////
//// ////
//////////////////////////////////////////////////////////////////////
//// ////
//// Copyright (C) 2000 Authors and OPENCORES.ORG ////
//// ////
//// This source file may be used and distributed without ////
//// restriction provided that this copyright statement is not ////
//// removed from the file and that any derivative work contains ////
//// the original copyright notice and the associated disclaimer. ////
//// ////
//// This source file is free software; you can redistribute it ////
//// and/or modify it under the terms of the GNU Lesser General ////
//// Public License as published by the Free Software Foundation; ////
//// either version 2.1 of the License, or (at your option) any ////
//// later version. ////
//// ////
//// This source is distributed in the hope that it will be ////
//// useful, but WITHOUT ANY WARRANTY; without even the implied ////
//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR ////
//// PURPOSE. See the GNU Lesser General Public License for more ////
//// details. ////
//// ////
//// You should have received a copy of the GNU Lesser General ////
//// Public License along with this source; if not, download it ////
//// from http://www.opencores.org/lgpl.shtml ////
//// ////
//////////////////////////////////////////////////////////////////////
//
// CVS Revision History
//
// $Log: not supported by cvs2svn $
// Revision 1.3 2002/02/12 01:33:47 lampret
// No longer using async rst as sync reset for the counter.
//
// Revision 1.2 2002/01/28 01:16:00 lampret
// Changed 'void' nop-ops instead of insn[0] to use insn[16]. Debug unit stalls the tick timer. Prepared new flag generation for add and and insns. Blocked DC/IC while they are turned off. Fixed I/D MMU SPRs layout except WAYs. TODO: smart IC invalidate, l.j 2 and TLB ways.
//
// Revision 1.1 2002/01/03 08:16:15 lampret
// New prefixes for RTL files, prefixed module names. Updated cache controllers and MMUs.
//
// Revision 1.10 2001/11/13 10:00:49 lampret
// Fixed tick timer interrupt reporting by using TTCR[IP] bit.
//
// Revision 1.9 2001/11/10 03:43:57 lampret
// Fixed exceptions.
//
// Revision 1.8 2001/10/21 17:57:16 lampret
// Removed params from generic_XX.v. Added translate_off/on in sprs.v and id.v. Removed spr_addr from dc.v and ic.v. Fixed CR+LF.
//
// Revision 1.7 2001/10/14 13:12:10 lampret
// MP3 version.
//
// Revision 1.1.1.1 2001/10/06 10:18:35 igorm
// no message
//
// Revision 1.2 2001/08/09 13:39:33 lampret
// Major clean-up.
//
// Revision 1.1 2001/07/20 00:46:23 lampret
// Development version of RTL. Libraries are missing.
//
//
 
// synopsys translate_off
`include "timescale.v"
// synopsys translate_on
`include "or1200_defines.v"
 
module or1200_tt(
// RISC Internal Interface
clk, rst, du_stall,
spr_cs, spr_write, spr_addr, spr_dat_i, spr_dat_o,
int
);
 
//
// RISC Internal Interface
//
input clk; // Clock
input rst; // Reset
input du_stall; // DU stall
input spr_cs; // SPR CS
input spr_write; // SPR Write
input [31:0] spr_addr; // SPR Address
input [31:0] spr_dat_i; // SPR Write Data
output [31:0] spr_dat_o; // SPR Read Data
output int; // Interrupt output
 
`ifdef OR1200_TT_IMPLEMENTED
 
//
// TT Mode Register bits (or no register)
//
`ifdef OR1200_TT_TTMR
reg [31:0] ttmr; // TTMR bits
`else
wire [31:0] ttmr; // No TTMR register
`endif
 
//
// TT Count Register bits (or no register)
//
`ifdef OR1200_TT_TTCR
reg [31:0] ttcr; // TTCR bits
`else
wire [31:0] ttcr; // No TTCR register
`endif
 
//
// Internal wires & regs
//
wire ttmr_sel; // TTMR select
wire ttcr_sel; // TTCR select
wire match; // Asserted when TTMR[TP]
// is equal to TTCR[27:0]
wire restart; // Restart counter when asserted
wire stop; // Stop counter when asserted
reg [31:0] spr_dat_o; // SPR data out
 
//
// TT registers address decoder
//
assign ttmr_sel = (spr_cs && (spr_addr[`OR1200_TTOFS_BITS] == `OR1200_TT_OFS_TTMR)) ? 1'b1 : 1'b0;
assign ttcr_sel = (spr_cs && (spr_addr[`OR1200_TTOFS_BITS] == `OR1200_TT_OFS_TTCR)) ? 1'b1 : 1'b0;
 
//
// Write to TTMR or update of TTMR[IP] bit
//
`ifdef OR1200_TT_TTMR
always @(posedge clk or posedge rst)
if (rst)
ttmr <= 32'b0;
else if (ttmr_sel && spr_write)
ttmr <= #1 spr_dat_i;
else if (ttmr[`OR1200_TT_TTMR_IE])
ttmr[`OR1200_TT_TTMR_IP] <= #1 ttmr[`OR1200_TT_TTMR_IP] | (match & ttmr[`OR1200_TT_TTMR_IE]);
`else
assign ttmr = {2'b11, 30'b0}; // TTMR[M] = 0x3
`endif
 
//
// Write to or increment of TTCR
//
`ifdef OR1200_TT_TTCR
always @(posedge clk or posedge rst)
if (rst)
ttcr <= 32'b0;
else if (restart)
ttcr <= #1 32'b0;
else if (ttcr_sel && spr_write)
ttcr <= #1 spr_dat_i;
else if (!stop)
ttcr <= #1 ttcr + 1'd1;
`else
assign ttcr = 32'b0;
`endif
 
//
// Read TT registers
//
always @(spr_addr or ttmr or ttcr)
case (spr_addr[`OR1200_TTOFS_BITS]) // synopsys parallel_case
`ifdef OR1200_TT_READREGS
`OR1200_TT_OFS_TTMR: spr_dat_o = ttmr;
`endif
default: spr_dat_o = ttcr;
endcase
 
//
// A match when TTMR[TP] is equal to TTCR[27:0]
//
assign match = (ttmr[`OR1200_TT_TTMR_TP] == ttcr[27:0]) ? 1'b1 : 1'b0;
 
//
// Restart when match and TTMR[M]==0x1
//
assign restart = match && (ttmr[`OR1200_TT_TTMR_M] == 2'b01);
 
//
// Stop when match and TTMR[M]==0x2 or when TTMR[M]==0x0 or when RISC is stalled by debug unit
//
assign stop = match & (ttmr[`OR1200_TT_TTMR_M] == 2'b10) | (ttmr[`OR1200_TT_TTMR_M] == 2'b00) | du_stall;
 
//
// Generate an interrupt request
//
assign int = ttmr[`OR1200_TT_TTMR_IP];
 
`else
 
//
// When TT is not implemented, drive all outputs as would when TT is disabled
//
assign int = 1'b0;
 
//
// Read TT registers
//
`ifdef OR1200_TT_READREGS
assign spr_dat_o = 32'b0;
`endif
 
`endif
 
endmodule
/tags/rel_26/or1200/rtl/verilog/or1200_if.v
0,0 → 1,186
//////////////////////////////////////////////////////////////////////
//// ////
//// OR1200's instruction fetch ////
//// ////
//// This file is part of the OpenRISC 1200 project ////
//// http://www.opencores.org/cores/or1k/ ////
//// ////
//// Description ////
//// PC, instruction fetch, interface to IC. ////
//// ////
//// To Do: ////
//// - make it smaller and faster ////
//// ////
//// Author(s): ////
//// - Damjan Lampret, lampret@opencores.org ////
//// ////
//////////////////////////////////////////////////////////////////////
//// ////
//// Copyright (C) 2000 Authors and OPENCORES.ORG ////
//// ////
//// This source file may be used and distributed without ////
//// restriction provided that this copyright statement is not ////
//// removed from the file and that any derivative work contains ////
//// the original copyright notice and the associated disclaimer. ////
//// ////
//// This source file is free software; you can redistribute it ////
//// and/or modify it under the terms of the GNU Lesser General ////
//// Public License as published by the Free Software Foundation; ////
//// either version 2.1 of the License, or (at your option) any ////
//// later version. ////
//// ////
//// This source is distributed in the hope that it will be ////
//// useful, but WITHOUT ANY WARRANTY; without even the implied ////
//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR ////
//// PURPOSE. See the GNU Lesser General Public License for more ////
//// details. ////
//// ////
//// You should have received a copy of the GNU Lesser General ////
//// Public License along with this source; if not, download it ////
//// from http://www.opencores.org/lgpl.shtml ////
//// ////
//////////////////////////////////////////////////////////////////////
//
// CVS Revision History
//
// $Log: not supported by cvs2svn $
// Revision 1.2 2002/01/28 01:16:00 lampret
// Changed 'void' nop-ops instead of insn[0] to use insn[16]. Debug unit stalls the tick timer. Prepared new flag generation for add and and insns. Blocked DC/IC while they are turned off. Fixed I/D MMU SPRs layout except WAYs. TODO: smart IC invalidate, l.j 2 and TLB ways.
//
// Revision 1.1 2002/01/03 08:16:15 lampret
// New prefixes for RTL files, prefixed module names. Updated cache controllers and MMUs.
//
// Revision 1.10 2001/11/20 18:46:15 simons
// Break point bug fixed
//
// Revision 1.9 2001/11/18 09:58:28 lampret
// Fixed some l.trap typos.
//
// Revision 1.8 2001/11/18 08:36:28 lampret
// For GDB changed single stepping and disabled trap exception.
//
// Revision 1.7 2001/10/21 17:57:16 lampret
// Removed params from generic_XX.v. Added translate_off/on in sprs.v and id.v. Removed spr_addr from dc.v and ic.v. Fixed CR+LF.
//
// Revision 1.6 2001/10/14 13:12:09 lampret
// MP3 version.
//
// Revision 1.1.1.1 2001/10/06 10:18:36 igorm
// no message
//
// Revision 1.1 2001/08/09 13:39:33 lampret
// Major clean-up.
//
//
 
// synopsys translate_off
`include "timescale.v"
// synopsys translate_on
`include "or1200_defines.v"
 
module or1200_if(
// Clock and reset
clk, rst,
 
// External i/f to IC
icpu_dat_i, icpu_ack_i, icpu_err_i, icpu_adr_i, icpu_tag_i,
 
// Internal i/f
if_freeze, if_insn, if_pc, flushpipe,
if_stall, no_more_dslot, genpc_refetch, rfe,
except_itlbmiss, except_immufault, except_ibuserr
);
 
//
// I/O
//
 
//
// Clock and reset
//
input clk;
input rst;
 
//
// External i/f to IC
//
input [31:0] icpu_dat_i;
input icpu_ack_i;
input icpu_err_i;
input [31:0] icpu_adr_i;
input [3:0] icpu_tag_i;
 
//
// Internal i/f
//
input if_freeze;
output [31:0] if_insn;
output [31:0] if_pc;
input flushpipe;
output if_stall;
input no_more_dslot;
output genpc_refetch;
input rfe;
output except_itlbmiss;
output except_immufault;
output except_ibuserr;
 
//
// Internal wires and regs
//
reg [31:0] insn_saved;
reg [31:0] addr_saved;
reg saved;
 
//
// IF stage insn
//
assign if_insn = icpu_err_i | no_more_dslot | rfe ? {`OR1200_OR32_NOP, 26'h041_0000} : saved ? insn_saved : icpu_ack_i ? icpu_dat_i : {`OR1200_OR32_NOP, 26'h061_0000};
assign if_pc = saved ? addr_saved : icpu_adr_i;
// assign if_stall = !icpu_err_i & !icpu_ack_i & !saved & !no_more_dslot;
assign if_stall = !icpu_err_i & !icpu_ack_i & !saved;
assign genpc_refetch = saved & icpu_ack_i;
assign except_itlbmiss = icpu_err_i & (icpu_tag_i == `OR1200_ITAG_TE) & !no_more_dslot;
assign except_immufault = icpu_err_i & (icpu_tag_i == `OR1200_ITAG_PE) & !no_more_dslot;
assign except_ibuserr = icpu_err_i & (icpu_tag_i == `OR1200_ITAG_BE) & !no_more_dslot;
 
//
// Flag for saved insn/address
//
always @(posedge clk or posedge rst)
if (rst)
saved <= #1 1'b0;
else if (flushpipe)
saved <= #1 1'b0;
else if (icpu_ack_i & if_freeze & !saved)
saved <= #1 1'b1;
else if (!if_freeze)
saved <= #1 1'b0;
 
//
// Store fetched instruction
//
always @(posedge clk or posedge rst)
if (rst)
insn_saved <= #1 {`OR1200_OR32_NOP, 26'h041_0000};
else if (flushpipe)
insn_saved <= #1 {`OR1200_OR32_NOP, 26'h041_0000};
else if (icpu_ack_i & if_freeze & !saved)
insn_saved <= #1 icpu_dat_i;
else if (!if_freeze)
insn_saved <= #1 {`OR1200_OR32_NOP, 26'h041_0000};
 
//
// Store fetched instruction's address
//
always @(posedge clk or posedge rst)
if (rst)
addr_saved <= #1 32'h00000000;
else if (flushpipe)
addr_saved <= #1 32'h00000000;
else if (icpu_ack_i & if_freeze & !saved)
addr_saved <= #1 icpu_adr_i;
else if (!if_freeze)
addr_saved <= #1 icpu_adr_i;
 
endmodule
/tags/rel_26/or1200/rtl/verilog/or1200_wbmux.v
0,0 → 1,165
//////////////////////////////////////////////////////////////////////
//// ////
//// OR1200's Write-back Mux ////
//// ////
//// This file is part of the OpenRISC 1200 project ////
//// http://www.opencores.org/cores/or1k/ ////
//// ////
//// Description ////
//// CPU's write-back stage of the pipeline ////
//// ////
//// To Do: ////
//// - make it smaller and faster ////
//// ////
//// Author(s): ////
//// - Damjan Lampret, lampret@opencores.org ////
//// ////
//////////////////////////////////////////////////////////////////////
//// ////
//// Copyright (C) 2000 Authors and OPENCORES.ORG ////
//// ////
//// This source file may be used and distributed without ////
//// restriction provided that this copyright statement is not ////
//// removed from the file and that any derivative work contains ////
//// the original copyright notice and the associated disclaimer. ////
//// ////
//// This source file is free software; you can redistribute it ////
//// and/or modify it under the terms of the GNU Lesser General ////
//// Public License as published by the Free Software Foundation; ////
//// either version 2.1 of the License, or (at your option) any ////
//// later version. ////
//// ////
//// This source is distributed in the hope that it will be ////
//// useful, but WITHOUT ANY WARRANTY; without even the implied ////
//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR ////
//// PURPOSE. See the GNU Lesser General Public License for more ////
//// details. ////
//// ////
//// You should have received a copy of the GNU Lesser General ////
//// Public License along with this source; if not, download it ////
//// from http://www.opencores.org/lgpl.shtml ////
//// ////
//////////////////////////////////////////////////////////////////////
//
// CVS Revision History
//
// $Log: not supported by cvs2svn $
// Revision 1.1 2002/01/03 08:16:15 lampret
// New prefixes for RTL files, prefixed module names. Updated cache controllers and MMUs.
//
// Revision 1.8 2001/10/21 17:57:16 lampret
// Removed params from generic_XX.v. Added translate_off/on in sprs.v and id.v. Removed spr_addr from dc.v and ic.v. Fixed CR+LF.
//
// Revision 1.7 2001/10/14 13:12:10 lampret
// MP3 version.
//
// Revision 1.1.1.1 2001/10/06 10:18:36 igorm
// no message
//
// Revision 1.2 2001/08/09 13:39:33 lampret
// Major clean-up.
//
// Revision 1.1 2001/07/20 00:46:23 lampret
// Development version of RTL. Libraries are missing.
//
//
 
// synopsys translate_off
`include "timescale.v"
// synopsys translate_on
`include "or1200_defines.v"
 
module or1200_wbmux(
// Clock and reset
clk, rst,
 
// Internal i/f
wb_freeze, rfwb_op,
muxin_a, muxin_b, muxin_c, muxin_d,
muxout, muxreg, muxreg_valid
);
 
parameter width = `OR1200_OPERAND_WIDTH;
 
//
// I/O
//
 
//
// Clock and reset
//
input clk;
input rst;
 
//
// Internal i/f
//
input wb_freeze;
input [`OR1200_RFWBOP_WIDTH-1:0] rfwb_op;
input [width-1:0] muxin_a;
input [width-1:0] muxin_b;
input [width-1:0] muxin_c;
input [width-1:0] muxin_d;
output [width-1:0] muxout;
output [width-1:0] muxreg;
output muxreg_valid;
 
//
// Internal wires and regs
//
reg [width-1:0] muxout;
reg [width-1:0] muxreg;
reg muxreg_valid;
 
//
// Registered output from the write-back multiplexer
//
always @(posedge clk or posedge rst) begin
if (rst) begin
muxreg <= #1 32'd0;
muxreg_valid <= #1 1'b0;
end
else if (!wb_freeze) begin
muxreg <= #1 muxout;
muxreg_valid <= #1 rfwb_op[0];
end
end
 
//
// Write-back multiplexer
//
always @(muxin_a or muxin_b or muxin_c or muxin_d or rfwb_op) begin
`ifdef OR1200_ADDITIONAL_SYNOPSYS_DIRECTIVES
case(rfwb_op[`OR1200_RFWBOP_WIDTH-1:1]) // synopsys parallel_case infer_mux
`else
case(rfwb_op[`OR1200_RFWBOP_WIDTH-1:1]) // synopsys parallel_case
`endif
2'b00: muxout = muxin_a;
2'b01: begin
muxout = muxin_b;
`ifdef OR1200_VERBOSE
// synopsys translate_off
$display(" WBMUX: muxin_b %h", muxin_b);
// synopsys translate_on
`endif
end
2'b10: begin
muxout = muxin_c;
`ifdef OR1200_VERBOSE
// synopsys translate_off
$display(" WBMUX: muxin_c %h", muxin_c);
// synopsys translate_on
`endif
end
2'b11: begin
muxout = muxin_d + 4'h8;
`ifdef OR1200_VERBOSE
// synopsys translate_off
$display(" WBMUX: muxin_d %h", muxin_d + 4'h8);
// synopsys translate_on
`endif
end
endcase
end
 
endmodule
/tags/rel_26/or1200/rtl/verilog/or1200_operandmuxes.v
0,0 → 1,184
//////////////////////////////////////////////////////////////////////
//// ////
//// OR1200's register file read operands mux ////
//// ////
//// This file is part of the OpenRISC 1200 project ////
//// http://www.opencores.org/cores/or1k/ ////
//// ////
//// Description ////
//// Mux for two register file read operands. ////
//// ////
//// To Do: ////
//// - make it smaller and faster ////
//// ////
//// Author(s): ////
//// - Damjan Lampret, lampret@opencores.org ////
//// ////
//////////////////////////////////////////////////////////////////////
//// ////
//// Copyright (C) 2000 Authors and OPENCORES.ORG ////
//// ////
//// This source file may be used and distributed without ////
//// restriction provided that this copyright statement is not ////
//// removed from the file and that any derivative work contains ////
//// the original copyright notice and the associated disclaimer. ////
//// ////
//// This source file is free software; you can redistribute it ////
//// and/or modify it under the terms of the GNU Lesser General ////
//// Public License as published by the Free Software Foundation; ////
//// either version 2.1 of the License, or (at your option) any ////
//// later version. ////
//// ////
//// This source is distributed in the hope that it will be ////
//// useful, but WITHOUT ANY WARRANTY; without even the implied ////
//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR ////
//// PURPOSE. See the GNU Lesser General Public License for more ////
//// details. ////
//// ////
//// You should have received a copy of the GNU Lesser General ////
//// Public License along with this source; if not, download it ////
//// from http://www.opencores.org/lgpl.shtml ////
//// ////
//////////////////////////////////////////////////////////////////////
//
// CVS Revision History
//
// $Log: not supported by cvs2svn $
// Revision 1.1 2002/01/03 08:16:15 lampret
// New prefixes for RTL files, prefixed module names. Updated cache controllers and MMUs.
//
// Revision 1.9 2001/11/12 01:45:40 lampret
// Moved flag bit into SR. Changed RF enable from constant enable to dynamic enable for read ports.
//
// Revision 1.8 2001/10/21 17:57:16 lampret
// Removed params from generic_XX.v. Added translate_off/on in sprs.v and id.v. Removed spr_addr from dc.v and ic.v. Fixed CR+LF.
//
// Revision 1.7 2001/10/14 13:12:09 lampret
// MP3 version.
//
// Revision 1.1.1.1 2001/10/06 10:18:36 igorm
// no message
//
// Revision 1.2 2001/08/09 13:39:33 lampret
// Major clean-up.
//
// Revision 1.1 2001/07/20 00:46:05 lampret
// Development version of RTL. Libraries are missing.
//
//
 
// synopsys translate_off
`include "timescale.v"
// synopsys translate_on
`include "or1200_defines.v"
 
module or1200_operandmuxes(
// Clock and reset
clk, rst,
 
// Internal i/f
id_freeze, ex_freeze, rf_dataa, rf_datab, ex_forw, wb_forw,
simm, sel_a, sel_b, operand_a, operand_b, muxed_b
);
 
parameter width = `OR1200_OPERAND_WIDTH;
 
//
// I/O
//
input clk;
input rst;
input id_freeze;
input ex_freeze;
input [width-1:0] rf_dataa;
input [width-1:0] rf_datab;
input [width-1:0] ex_forw;
input [width-1:0] wb_forw;
input [width-1:0] simm;
input [`OR1200_SEL_WIDTH-1:0] sel_a;
input [`OR1200_SEL_WIDTH-1:0] sel_b;
output [width-1:0] operand_a;
output [width-1:0] operand_b;
output [width-1:0] muxed_b;
 
//
// Internal wires and regs
//
reg [width-1:0] operand_a;
reg [width-1:0] operand_b;
reg [width-1:0] muxed_a;
reg [width-1:0] muxed_b;
reg saved_a;
reg saved_b;
 
//
// Operand A register
//
always @(posedge clk or posedge rst) begin
if (rst) begin
operand_a <= #1 32'd0;
saved_a <= #1 1'b0;
end else if (!ex_freeze && id_freeze && !saved_a) begin
operand_a <= #1 muxed_a;
saved_a <= #1 1'b1;
end else if (!ex_freeze && !saved_a) begin
operand_a <= #1 muxed_a;
end else if (!ex_freeze && !id_freeze)
saved_a <= #1 1'b0;
end
 
//
// Operand B register
//
always @(posedge clk or posedge rst) begin
if (rst) begin
operand_b <= #1 32'd0;
saved_b <= #1 1'b0;
end else if (!ex_freeze && id_freeze && !saved_b) begin
operand_b <= #1 muxed_b;
saved_b <= #1 1'b1;
end else if (!ex_freeze && !saved_b) begin
operand_b <= #1 muxed_b;
end else if (!ex_freeze && !id_freeze)
saved_b <= #1 1'b0;
end
 
//
// Forwarding logic for operand A register
//
always @(ex_forw or wb_forw or rf_dataa or sel_a) begin
`ifdef OR1200_ADDITIONAL_SYNOPSYS_DIRECTIVES
casex (sel_a) // synopsys parallel_case infer_mux
`else
casex (sel_a) // synopsys parallel_case
`endif
`OR1200_SEL_EX_FORW:
muxed_a = ex_forw;
`OR1200_SEL_WB_FORW:
muxed_a = wb_forw;
default:
muxed_a = rf_dataa;
endcase
end
 
//
// Forwarding logic for operand B register
//
always @(simm or ex_forw or wb_forw or rf_datab or sel_b) begin
`ifdef OR1200_ADDITIONAL_SYNOPSYS_DIRECTIVES
casex (sel_b) // synopsys parallel_case infer_mux
`else
casex (sel_b) // synopsys parallel_case
`endif
`OR1200_SEL_IMM:
muxed_b = simm;
`OR1200_SEL_EX_FORW:
muxed_b = ex_forw;
`OR1200_SEL_WB_FORW:
muxed_b = wb_forw;
default:
muxed_b = rf_datab;
endcase
end
 
endmodule
/tags/rel_26/or1200/rtl/verilog/or1200_pic.v
0,0 → 1,222
//////////////////////////////////////////////////////////////////////
//// ////
//// OR1200's Programmable Interrupt Controller ////
//// ////
//// This file is part of the OpenRISC 1200 project ////
//// http://www.opencores.org/cores/or1k/ ////
//// ////
//// Description ////
//// PIC according to OR1K architectural specification. ////
//// ////
//// To Do: ////
//// None ////
//// ////
//// Author(s): ////
//// - Damjan Lampret, lampret@opencores.org ////
//// ////
//////////////////////////////////////////////////////////////////////
//// ////
//// Copyright (C) 2000 Authors and OPENCORES.ORG ////
//// ////
//// This source file may be used and distributed without ////
//// restriction provided that this copyright statement is not ////
//// removed from the file and that any derivative work contains ////
//// the original copyright notice and the associated disclaimer. ////
//// ////
//// This source file is free software; you can redistribute it ////
//// and/or modify it under the terms of the GNU Lesser General ////
//// Public License as published by the Free Software Foundation; ////
//// either version 2.1 of the License, or (at your option) any ////
//// later version. ////
//// ////
//// This source is distributed in the hope that it will be ////
//// useful, but WITHOUT ANY WARRANTY; without even the implied ////
//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR ////
//// PURPOSE. See the GNU Lesser General Public License for more ////
//// details. ////
//// ////
//// You should have received a copy of the GNU Lesser General ////
//// Public License along with this source; if not, download it ////
//// from http://www.opencores.org/lgpl.shtml ////
//// ////
//////////////////////////////////////////////////////////////////////
//
// CVS Revision History
//
// $Log: not supported by cvs2svn $
// Revision 1.2 2002/01/18 07:56:00 lampret
// No more low/high priority interrupts (PICPR removed). Added tick timer exception. Added exception prefix (SR[EPH]). Fixed single-step bug whenreading NPC.
//
// Revision 1.1 2002/01/03 08:16:15 lampret
// New prefixes for RTL files, prefixed module names. Updated cache controllers and MMUs.
//
// Revision 1.8 2001/10/21 17:57:16 lampret
// Removed params from generic_XX.v. Added translate_off/on in sprs.v and id.v. Removed spr_addr from dc.v and ic.v. Fixed CR+LF.
//
// Revision 1.7 2001/10/14 13:12:10 lampret
// MP3 version.
//
// Revision 1.1.1.1 2001/10/06 10:18:36 igorm
// no message
//
// Revision 1.2 2001/08/09 13:39:33 lampret
// Major clean-up.
//
// Revision 1.1 2001/07/20 00:46:21 lampret
// Development version of RTL. Libraries are missing.
//
//
 
// synopsys translate_off
`include "timescale.v"
// synopsys translate_on
`include "or1200_defines.v"
 
module or1200_pic(
// RISC Internal Interface
clk, rst, spr_cs, spr_write, spr_addr, spr_dat_i, spr_dat_o,
pic_wakeup, int,
// PIC Interface
pic_int
);
 
//
// RISC Internal Interface
//
input clk; // Clock
input rst; // Reset
input spr_cs; // SPR CS
input spr_write; // SPR Write
input [31:0] spr_addr; // SPR Address
input [31:0] spr_dat_i; // SPR Write Data
output [31:0] spr_dat_o; // SPR Read Data
output pic_wakeup; // Wakeup to the PM
output int; // interrupt
// exception request
 
//
// PIC Interface
//
input [`OR1200_PIC_INTS-1:0] pic_int;// Interrupt inputs
 
`ifdef OR1200_PIC_IMPLEMENTED
 
//
// PIC Mask Register bits (or no register)
//
`ifdef OR1200_PIC_PICMR
reg [`OR1200_PIC_INTS-1:2] picmr; // PICMR bits
`else
wire [`OR1200_PIC_INTS-1:2] picmr; // No PICMR register
`endif
 
//
// PIC Status Register bits (or no register)
//
`ifdef OR1200_PIC_PICSR
reg [`OR1200_PIC_INTS-1:0] picsr; // PICSR bits
`else
wire [`OR1200_PIC_INTS-1:0] picsr; // No PICSR register
`endif
 
//
// Internal wires & regs
//
wire picmr_sel; // PICMR select
wire picsr_sel; // PICSR select
wire [`OR1200_PIC_INTS-1:0] um_ints;// Unmasked interrupts
reg [31:0] spr_dat_o; // SPR data out
 
//
// PIC registers address decoder
//
assign picmr_sel = (spr_cs && (spr_addr[`OR1200_PICOFS_BITS] == `OR1200_PIC_OFS_PICMR)) ? 1'b1 : 1'b0;
assign picsr_sel = (spr_cs && (spr_addr[`OR1200_PICOFS_BITS] == `OR1200_PIC_OFS_PICSR)) ? 1'b1 : 1'b0;
 
//
// Write to PICMR
//
`ifdef OR1200_PIC_PICMR
always @(posedge clk or posedge rst)
if (rst)
picmr <= {1'b1, {`OR1200_PIC_INTS-3{1'b0}}};
else if (picmr_sel && spr_write) begin
picmr <= #1 spr_dat_i[`OR1200_PIC_INTS-1:2];
end
`else
assign picmr = (`OR1200_PIC_INTS)'b1;
`endif
 
//
// Write to PICSR, both CPU and external ints
//
`ifdef OR1200_PIC_PICSR
always @(posedge clk or posedge rst)
if (rst)
picsr <= {`OR1200_PIC_INTS-2{1'b0}};
else if (picsr_sel && spr_write) begin
picsr <= #1 spr_dat_i[`OR1200_PIC_INTS-1:0] | um_ints;
end else
picsr <= #1 picsr | um_ints;
`else
assign picsr = pic_int;
`endif
 
//
// Read PIC registers
//
always @(spr_addr or picmr or picsr)
case (spr_addr[`OR1200_PICOFS_BITS]) // synopsys parallel_case
`ifdef OR1200_PIC_READREGS
`OR1200_PIC_OFS_PICMR: begin
spr_dat_o[`OR1200_PIC_INTS-1:0] = {picmr, 2'b0};
`ifdef OR1200_PIC_UNUSED_ZERO
spr_dat_o[31:`OR1200_PIC_INTS] = {32-`OR1200_PIC_INTS{1'b0}};
`endif
end
`endif
default: begin
spr_dat_o[`OR1200_PIC_INTS-1:0] = picsr;
`ifdef OR1200_PIC_UNUSED_ZERO
spr_dat_o[31:`OR1200_PIC_INTS] = {32-`OR1200_PIC_INTS{1'b0}};
`endif
end
endcase
 
//
// Unmasked interrupts
//
assign um_ints = pic_int & {picmr, 2'b11};
 
//
// Generate int
//
assign int = |um_ints;
 
//
// Assert pic_wakeup when int is asserted
//
assign pic_wakeup = int;
 
`else
 
//
// When PIC is not implemented, drive all outputs as would when PIC is disabled
//
assign int = pic_int[1] | pic_int[0];
assign pic_wakeup= int;
 
//
// Read PIC registers
//
`ifdef OR1200_PIC_READREGS
assign spr_dat_o[`OR1200_PIC_INTS-1:0] = `OR1200_PIC_INTS'b0;
`ifdef OR1200_PIC_UNUSED_ZERO
assign spr_dat_o[31:`OR1200_PIC_INTS] = 32-`OR1200_PIC_INTS'b0;
`endif
`endif
 
`endif
 
endmodule
/tags/rel_26/or1200/rtl/verilog/or1200_reg2mem.v
0,0 → 1,134
//////////////////////////////////////////////////////////////////////
//// ////
//// OR1200's reg2mem aligner ////
//// ////
//// This file is part of the OpenRISC 1200 project ////
//// http://www.opencores.org/cores/or1k/ ////
//// ////
//// Description ////
//// Aligns register data to memory alignment. ////
//// ////
//// To Do: ////
//// - make it smaller and faster ////
//// ////
//// Author(s): ////
//// - Damjan Lampret, lampret@opencores.org ////
//// ////
//////////////////////////////////////////////////////////////////////
//// ////
//// Copyright (C) 2000 Authors and OPENCORES.ORG ////
//// ////
//// This source file may be used and distributed without ////
//// restriction provided that this copyright statement is not ////
//// removed from the file and that any derivative work contains ////
//// the original copyright notice and the associated disclaimer. ////
//// ////
//// This source file is free software; you can redistribute it ////
//// and/or modify it under the terms of the GNU Lesser General ////
//// Public License as published by the Free Software Foundation; ////
//// either version 2.1 of the License, or (at your option) any ////
//// later version. ////
//// ////
//// This source is distributed in the hope that it will be ////
//// useful, but WITHOUT ANY WARRANTY; without even the implied ////
//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR ////
//// PURPOSE. See the GNU Lesser General Public License for more ////
//// details. ////
//// ////
//// You should have received a copy of the GNU Lesser General ////
//// Public License along with this source; if not, download it ////
//// from http://www.opencores.org/lgpl.shtml ////
//// ////
//////////////////////////////////////////////////////////////////////
//
// CVS Revision History
//
// $Log: not supported by cvs2svn $
// Revision 1.1 2002/01/03 08:16:15 lampret
// New prefixes for RTL files, prefixed module names. Updated cache controllers and MMUs.
//
// Revision 1.9 2001/10/21 17:57:16 lampret
// Removed params from generic_XX.v. Added translate_off/on in sprs.v and id.v. Removed spr_addr from dc.v and ic.v. Fixed CR+LF.
//
// Revision 1.8 2001/10/19 23:28:46 lampret
// Fixed some synthesis warnings. Configured with caches and MMUs.
//
// Revision 1.7 2001/10/14 13:12:10 lampret
// MP3 version.
//
// Revision 1.1.1.1 2001/10/06 10:18:36 igorm
// no message
//
// Revision 1.2 2001/08/09 13:39:33 lampret
// Major clean-up.
//
// Revision 1.1 2001/07/20 00:46:21 lampret
// Development version of RTL. Libraries are missing.
//
//
 
// synopsys translate_off
`include "timescale.v"
// synopsys translate_on
`include "or1200_defines.v"
 
module or1200_reg2mem(addr, lsu_op, regdata, memdata);
 
parameter width = `OR1200_OPERAND_WIDTH;
 
//
// I/O
//
input [1:0] addr;
input [`OR1200_LSUOP_WIDTH-1:0] lsu_op;
input [width-1:0] regdata;
output [width-1:0] memdata;
 
//
// Internal regs and wires
//
reg [7:0] memdata_hh;
reg [7:0] memdata_hl;
reg [7:0] memdata_lh;
reg [7:0] memdata_ll;
 
assign memdata = {memdata_hh, memdata_hl, memdata_lh, memdata_ll};
 
//
// Mux to memdata[31:24]
//
always @(lsu_op or addr or regdata) begin
casex({lsu_op, addr[1:0]}) // synopsys parallel_case
{`OR1200_LSUOP_SB, 2'b00} : memdata_hh = regdata[7:0];
{`OR1200_LSUOP_SH, 2'b00} : memdata_hh = regdata[15:8];
default : memdata_hh = regdata[31:24];
endcase
end
 
//
// Mux to memdata[23:16]
//
always @(lsu_op or addr or regdata) begin
casex({lsu_op, addr[1:0]}) // synopsys parallel_case
{`OR1200_LSUOP_SW, 2'b00} : memdata_hl = regdata[23:16];
default : memdata_hl = regdata[7:0];
endcase
end
 
//
// Mux to memdata[15:8]
//
always @(lsu_op or addr or regdata) begin
casex({lsu_op, addr[1:0]}) // synopsys parallel_case
{`OR1200_LSUOP_SB, 2'b10} : memdata_lh = regdata[7:0];
default : memdata_lh = regdata[15:8];
endcase
end
 
//
// Mux to memdata[7:0]
//
always @(regdata)
memdata_ll = regdata[7:0];
 
endmodule
/tags/rel_26/or1200/rtl/verilog/or1200_lsu.v
0,0 → 1,192
//////////////////////////////////////////////////////////////////////
//// ////
//// OR1200's Load/Store unit ////
//// ////
//// This file is part of the OpenRISC 1200 project ////
//// http://www.opencores.org/cores/or1k/ ////
//// ////
//// Description ////
//// Interface between CPU and DC. ////
//// ////
//// To Do: ////
//// - make it smaller and faster ////
//// ////
//// Author(s): ////
//// - Damjan Lampret, lampret@opencores.org ////
//// ////
//////////////////////////////////////////////////////////////////////
//// ////
//// Copyright (C) 2000 Authors and OPENCORES.ORG ////
//// ////
//// This source file may be used and distributed without ////
//// restriction provided that this copyright statement is not ////
//// removed from the file and that any derivative work contains ////
//// the original copyright notice and the associated disclaimer. ////
//// ////
//// This source file is free software; you can redistribute it ////
//// and/or modify it under the terms of the GNU Lesser General ////
//// Public License as published by the Free Software Foundation; ////
//// either version 2.1 of the License, or (at your option) any ////
//// later version. ////
//// ////
//// This source is distributed in the hope that it will be ////
//// useful, but WITHOUT ANY WARRANTY; without even the implied ////
//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR ////
//// PURPOSE. See the GNU Lesser General Public License for more ////
//// details. ////
//// ////
//// You should have received a copy of the GNU Lesser General ////
//// Public License along with this source; if not, download it ////
//// from http://www.opencores.org/lgpl.shtml ////
//// ////
//////////////////////////////////////////////////////////////////////
//
// CVS Revision History
//
// $Log: not supported by cvs2svn $
// Revision 1.3 2002/02/11 04:33:17 lampret
// Speed optimizations (removed duplicate _cyc_ and _stb_). Fixed D/IMMU cache-inhibit attr.
//
// Revision 1.2 2002/01/18 07:56:00 lampret
// No more low/high priority interrupts (PICPR removed). Added tick timer exception. Added exception prefix (SR[EPH]). Fixed single-step bug whenreading NPC.
//
// Revision 1.1 2002/01/03 08:16:15 lampret
// New prefixes for RTL files, prefixed module names. Updated cache controllers and MMUs.
//
// Revision 1.9 2001/11/30 18:59:47 simons
// *** empty log message ***
//
// Revision 1.8 2001/10/21 17:57:16 lampret
// Removed params from generic_XX.v. Added translate_off/on in sprs.v and id.v. Removed spr_addr from dc.v and ic.v. Fixed CR+LF.
//
// Revision 1.7 2001/10/14 13:12:09 lampret
// MP3 version.
//
// Revision 1.1.1.1 2001/10/06 10:18:36 igorm
// no message
//
// Revision 1.2 2001/08/09 13:39:33 lampret
// Major clean-up.
//
// Revision 1.1 2001/07/20 00:46:03 lampret
// Development version of RTL. Libraries are missing.
//
//
 
// synopsys translate_off
`include "timescale.v"
// synopsys translate_on
`include "or1200_defines.v"
 
module or1200_lsu(
 
// Internal i/f
addrbase, addrofs, lsu_op, lsu_datain, lsu_dataout, lsu_stall, lsu_unstall,
du_stall, except_align, except_dtlbmiss, except_dmmufault, except_dbuserr,
 
// External i/f to DC
dcpu_adr_o, dcpu_cycstb_o, dcpu_we_o, dcpu_sel_o, dcpu_tag_o, dcpu_dat_o,
dcpu_dat_i, dcpu_ack_i, dcpu_rty_i, dcpu_err_i, dcpu_tag_i
);
 
parameter dw = `OR1200_OPERAND_WIDTH;
parameter aw = `OR1200_REGFILE_ADDR_WIDTH;
 
//
// I/O
//
 
//
// Internal i/f
//
input [31:0] addrbase;
input [31:0] addrofs;
input [`OR1200_LSUOP_WIDTH-1:0] lsu_op;
input [dw-1:0] lsu_datain;
output [dw-1:0] lsu_dataout;
output lsu_stall;
output lsu_unstall;
input du_stall;
output except_align;
output except_dtlbmiss;
output except_dmmufault;
output except_dbuserr;
 
//
// External i/f to DC
//
output [31:0] dcpu_adr_o;
output dcpu_cycstb_o;
output dcpu_we_o;
output [3:0] dcpu_sel_o;
output [3:0] dcpu_tag_o;
output [31:0] dcpu_dat_o;
input [31:0] dcpu_dat_i;
input dcpu_ack_i;
input dcpu_rty_i;
input dcpu_err_i;
input [3:0] dcpu_tag_i;
 
//
// Internal wires/regs
//
reg [3:0] dcpu_sel_o;
 
//
// Internal I/F assignments
//
assign lsu_stall = dcpu_rty_i & dcpu_cycstb_o;
assign lsu_unstall = dcpu_ack_i;
assign except_align = ((lsu_op == `OR1200_LSUOP_SH) | (lsu_op == `OR1200_LSUOP_LHZ) | (lsu_op == `OR1200_LSUOP_LHS)) & dcpu_adr_o[0]
| ((lsu_op == `OR1200_LSUOP_SW) | (lsu_op == `OR1200_LSUOP_LWZ) | (lsu_op == `OR1200_LSUOP_LWS)) & |dcpu_adr_o[1:0];
assign except_dtlbmiss = dcpu_err_i & (dcpu_tag_i == `OR1200_DTAG_TE);
assign except_dmmufault = dcpu_err_i & (dcpu_tag_i == `OR1200_DTAG_PE);
assign except_dbuserr = dcpu_err_i & (dcpu_tag_i == `OR1200_DTAG_BE);
 
//
// External I/F assignments
//
assign dcpu_adr_o = addrbase + addrofs;
assign dcpu_cycstb_o = du_stall | lsu_unstall ? 1'b0 : |lsu_op;
assign dcpu_we_o = lsu_op[3];
assign dcpu_tag_o = dcpu_cycstb_o ? `OR1200_DTAG_ND : `OR1200_DTAG_IDLE;
always @(lsu_op or dcpu_adr_o)
casex({lsu_op, dcpu_adr_o[1:0]})
{`OR1200_LSUOP_SB, 2'b00} : dcpu_sel_o = 4'b1000;
{`OR1200_LSUOP_SB, 2'b01} : dcpu_sel_o = 4'b0100;
{`OR1200_LSUOP_SB, 2'b10} : dcpu_sel_o = 4'b0010;
{`OR1200_LSUOP_SB, 2'b11} : dcpu_sel_o = 4'b0001;
{`OR1200_LSUOP_SH, 2'b00} : dcpu_sel_o = 4'b1100;
{`OR1200_LSUOP_SH, 2'b10} : dcpu_sel_o = 4'b0011;
{`OR1200_LSUOP_SW, 2'b00} : dcpu_sel_o = 4'b1111;
{`OR1200_LSUOP_LBZ, 2'b00}, {`OR1200_LSUOP_LBS, 2'b00} : dcpu_sel_o = 4'b1000;
{`OR1200_LSUOP_LBZ, 2'b01}, {`OR1200_LSUOP_LBS, 2'b01} : dcpu_sel_o = 4'b0100;
{`OR1200_LSUOP_LBZ, 2'b10}, {`OR1200_LSUOP_LBS, 2'b10} : dcpu_sel_o = 4'b0010;
{`OR1200_LSUOP_LBZ, 2'b11}, {`OR1200_LSUOP_LBS, 2'b11} : dcpu_sel_o = 4'b0001;
{`OR1200_LSUOP_LHZ, 2'b00}, {`OR1200_LSUOP_LHS, 2'b00} : dcpu_sel_o = 4'b1100;
{`OR1200_LSUOP_LHZ, 2'b10}, {`OR1200_LSUOP_LHS, 2'b10} : dcpu_sel_o = 4'b0011;
{`OR1200_LSUOP_LWZ, 2'b00}, {`OR1200_LSUOP_LWS, 2'b00} : dcpu_sel_o = 4'b1111;
default : dcpu_sel_o = 4'b0000;
endcase
 
//
// Instantiation of Memory-to-regfile aligner
//
or1200_mem2reg or1200_mem2reg(
.addr(dcpu_adr_o[1:0]),
.lsu_op(lsu_op),
.memdata(dcpu_dat_i),
.regdata(lsu_dataout)
);
 
//
// Instantiation of Regfile-to-memory aligner
//
or1200_reg2mem or1200_reg2mem(
.addr(dcpu_adr_o[1:0]),
.lsu_op(lsu_op),
.regdata(lsu_datain),
.memdata(dcpu_dat_o)
);
 
endmodule
/tags/rel_26/or1200/rtl/verilog/or1200_pm.v
0,0 → 1,215
//////////////////////////////////////////////////////////////////////
//// ////
//// OR1200's Power Management ////
//// ////
//// This file is part of the OpenRISC 1200 project ////
//// http://www.opencores.org/cores/or1k/ ////
//// ////
//// Description ////
//// PM according to OR1K architectural specification. ////
//// ////
//// To Do: ////
//// - add support for dynamic clock gating ////
//// ////
//// Author(s): ////
//// - Damjan Lampret, lampret@opencores.org ////
//// ////
//////////////////////////////////////////////////////////////////////
//// ////
//// Copyright (C) 2000 Authors and OPENCORES.ORG ////
//// ////
//// This source file may be used and distributed without ////
//// restriction provided that this copyright statement is not ////
//// removed from the file and that any derivative work contains ////
//// the original copyright notice and the associated disclaimer. ////
//// ////
//// This source file is free software; you can redistribute it ////
//// and/or modify it under the terms of the GNU Lesser General ////
//// Public License as published by the Free Software Foundation; ////
//// either version 2.1 of the License, or (at your option) any ////
//// later version. ////
//// ////
//// This source is distributed in the hope that it will be ////
//// useful, but WITHOUT ANY WARRANTY; without even the implied ////
//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR ////
//// PURPOSE. See the GNU Lesser General Public License for more ////
//// details. ////
//// ////
//// You should have received a copy of the GNU Lesser General ////
//// Public License along with this source; if not, download it ////
//// from http://www.opencores.org/lgpl.shtml ////
//// ////
//////////////////////////////////////////////////////////////////////
//
// CVS Revision History
//
// $Log: not supported by cvs2svn $
// Revision 1.8 2001/10/21 17:57:16 lampret
// Removed params from generic_XX.v. Added translate_off/on in sprs.v and id.v. Removed spr_addr from dc.v and ic.v. Fixed CR+LF.
//
// Revision 1.7 2001/10/14 13:12:10 lampret
// MP3 version.
//
// Revision 1.1.1.1 2001/10/06 10:18:35 igorm
// no message
//
// Revision 1.2 2001/08/09 13:39:33 lampret
// Major clean-up.
//
// Revision 1.1 2001/07/20 00:46:21 lampret
// Development version of RTL. Libraries are missing.
//
//
 
// synopsys translate_off
`include "timescale.v"
// synopsys translate_on
`include "or1200_defines.v"
 
module or1200_pm(
// RISC Internal Interface
clk, rst, pic_wakeup, spr_write, spr_addr, spr_dat_i, spr_dat_o,
// Power Management Interface
pm_clksd, pm_cpustall, pm_dc_gate, pm_ic_gate, pm_dmmu_gate,
pm_immu_gate, pm_tt_gate, pm_cpu_gate, pm_wakeup, pm_lvolt
);
 
//
// RISC Internal Interface
//
input clk; // Clock
input rst; // Reset
input pic_wakeup; // Wakeup from the PIC
input spr_write; // SPR Read/Write
input [31:0] spr_addr; // SPR Address
input [31:0] spr_dat_i; // SPR Write Data
output [31:0] spr_dat_o; // SPR Read Data
 
//
// Power Management Interface
//
input pm_cpustall; // Stall the CPU
output [3:0] pm_clksd; // Clock Slowdown factor
output pm_dc_gate; // Gate DCache clock
output pm_ic_gate; // Gate ICache clock
output pm_dmmu_gate; // Gate DMMU clock
output pm_immu_gate; // Gate IMMU clock
output pm_tt_gate; // Gate Tick Timer clock
output pm_cpu_gate; // Gate main RISC/CPU clock
output pm_wakeup; // Activate (de-gate) all clocks
output pm_lvolt; // Lower operating voltage
 
`ifdef OR1200_PM_IMPLEMENTED
 
//
// Power Management Register bits
//
reg [3:0] sdf; // Slow-down factor
reg dme; // Doze Mode Enable
reg sme; // Sleep Mode Enable
reg dcge; // Dynamic Clock Gating Enable
 
//
// Internal wires
//
wire pmr_sel; // PMR select
 
//
// PMR address decoder (partial decoder)
//
`ifdef OR1200_PM_PARTIAL_DECODING
assign pmr_sel = (spr_addr[`OR1200_SPR_GROUP_BITS] == `OR1200_SPRGRP_PM) ? 1'b1 : 1'b0;
`else
assign pmr_sel = ((spr_addr[`OR1200_SPR_GROUP_BITS] == `OR1200_SPRGRP_PM) &&
(spr_addr[`OR1200_SPR_OFS_BITS] == `OR1200_PM_OFS_PMR)) ? 1'b1 : 1'b0;
`endif
 
//
// Write to PMR and also PMR[DME]/PMR[SME] reset when
// pic_wakeup is asserted
//
always @(posedge clk or posedge rst)
if (rst)
{dcge, sme, dme, sdf} <= 7'b0;
else if (pmr_sel && spr_write) begin
sdf <= #1 spr_dat_i[`OR1200_PM_PMR_SDF];
dme <= #1 spr_dat_i[`OR1200_PM_PMR_DME];
sme <= #1 spr_dat_i[`OR1200_PM_PMR_SME];
dcge <= #1 spr_dat_i[`OR1200_PM_PMR_DCGE];
end
else if (pic_wakeup) begin
dme <= #1 1'b0;
sme <= #1 1'b0;
end
 
//
// Read PMR
//
`ifdef OR1200_PM_READREGS
assign spr_dat_o[`OR1200_PM_PMR_SDF] = sdf;
assign spr_dat_o[`OR1200_PM_PMR_DME] = dme;
assign spr_dat_o[`OR1200_PM_PMR_SME] = sme;
assign spr_dat_o[`OR1200_PM_PMR_DCGE] = dcge;
`ifdef OR1200_PM_UNUSED_ZERO
assign spr_dat_o[`OR1200_PM_PMR_UNUSED] = 25'b0;
`endif
`endif
 
//
// Generate pm_clksd
//
assign pm_clksd = sdf;
 
//
// Statically generate all clock gate outputs
// TODO: add dynamic clock gating feature
//
assign pm_cpu_gate = (dme | sme) & ~pic_wakeup;
assign pm_dc_gate = pm_cpu_gate;
assign pm_ic_gate = pm_cpu_gate;
assign pm_dmmu_gate = pm_cpu_gate;
assign pm_immu_gate = pm_cpu_gate;
assign pm_tt_gate = sme & ~pic_wakeup;
 
//
// Assert pm_wakeup when pic_wakeup is asserted
//
assign pm_wakeup = pic_wakeup;
 
//
// Assert pm_lvolt when pm_cpu_gate or pm_cpustall are asserted
//
assign pm_lvolt = pm_cpu_gate | pm_cpustall;
 
`else
 
//
// When PM is not implemented, drive all outputs as would when PM is disabled
//
assign pm_clksd = 4'b0;
assign pm_cpu_gate = 1'b0;
assign pm_dc_gate = 1'b0;
assign pm_ic_gate = 1'b0;
assign pm_dmmu_gate = 1'b0;
assign pm_immu_gate = 1'b0;
assign pm_tt_gate = 1'b0;
assign pm_wakeup = 1'b1;
assign pm_lvolt = 1'b0;
 
//
// Read PMR
//
`ifdef OR1200_PM_READREGS
assign spr_dat_o[`OR1200_PM_PMR_SDF] = 4'b0;
assign spr_dat_o[`OR1200_PM_PMR_DME] = 1'b0;
assign spr_dat_o[`OR1200_PM_PMR_SME] = 1'b0;
assign spr_dat_o[`OR1200_PM_PMR_DCGE] = 1'b0;
`ifdef OR1200_PM_UNUSED_ZERO
assign spr_dat_o[`OR1200_PM_PMR_UNUSED] = 25'b0;
`endif
`endif
 
`endif
 
endmodule

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