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/tags/rel_24/or1200/rtl/verilog/or1200_du.v
0,0 → 1,663
//////////////////////////////////////////////////////////////////////
//// ////
//// 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 1.9.4.2 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, icpu_cycstb_i,
ex_freeze, branch_op, ex_insn,
spr_dat_npc, rf_dataw,
du_dsr, du_stall, du_addr, du_dat_i, du_dat_o,
du_read, du_write, du_except,
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 [`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] 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
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 (only ST and BT implemented)
//
`ifdef OR1200_DU_DMR1
reg [23:22] dmr1; // DMR1 implemented (ST & BT)
`else
wire [23:22] dmr1; // DMR1 not implemented
`endif
 
//
// Debug Mode Register 2 (not implemented)
//
`ifdef OR1200_DU_DMR2
wire [31:0] dmr2; // DMR 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
 
//
// Internal wires
//
wire dmr1_sel; // DMR1 select
wire dsr_sel; // DSR select
wire drr_sel; // DRR select
reg dbg_bp_r;
`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_OFS_DMR1));
`endif
`ifdef OR1200_DU_DSR
assign dsr_sel = (spr_cs && (spr_addr[`OR1200_DUOFS_BITS] == `OR1200_DU_OFS_DSR));
`endif
`ifdef OR1200_DU_DRR
assign drr_sel = (spr_cs && (spr_addr[`OR1200_DUOFS_BITS] == `OR1200_DU_OFS_DRR));
`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 <= 2'b00;
else if (dmr1_sel && spr_write)
dmr1 <= #1 spr_dat_i[23:22];
`else
assign dmr1 = 2'b00;
`endif
 
//
// DMR2 bits tied to zero
//
`ifdef OR1200_DU_DMR2
assign dmr2 = 32'h0000_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
 
//
// Read DU registers
//
`ifdef OR1200_DU_READREGS
always @(spr_addr or dsr or drr or dmr1 or dmr2
`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_DMR1
`OR1200_DU_OFS_DMR1:
spr_dat_o = {8'b0, dmr1, 22'b0};
`endif
`ifdef OR1200_DU_DMR2
`OR1200_DU_OFS_DMR2:
spr_dat_o = dmr2;
`endif
`ifdef OR1200_DU_DSR
`OR1200_DU_OFS_DSR:
spr_dat_o = {18'b0, dsr};
`endif
`ifdef OR1200_DU_DRR
`OR1200_DU_OFS_DRR:
spr_dat_o = {18'b0, drr};
`endif
`ifdef OR1200_DU_TB_IMPLEMENTED
`OR1200_DU_OFS_TBADR:
spr_dat_o = {24'h000000, tb_wadr};
`OR1200_DU_OFS_TBIA:
spr_dat_o = tbia_dat_o;
`OR1200_DU_OFS_TBIM:
spr_dat_o = tbim_dat_o;
`OR1200_DU_OFS_TBAR:
spr_dat_o = tbar_dat_o;
`OR1200_DU_OFS_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_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_24/or1200/rtl/verilog/or1200_top.v
0,0 → 1,1025
//////////////////////////////////////////////////////////////////////
//// ////
//// 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 1.10.4.7 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 ex_freeze;
wire [31:0] ex_insn;
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),
.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),
.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),
.icpu_cycstb_i(icpu_cycstb_cpu),
.ex_freeze(ex_freeze),
.branch_op(branch_op),
.ex_insn(ex_insn),
.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),
 
// 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_24/or1200/rtl/verilog/or1200_defines.v
0,0 → 1,1630
//////////////////////////////////////////////////////////////////////
//// ////
//// 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 1.35.4.4 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 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
`define OR1200_DU_OFS_DMR1 11'd16
`define OR1200_DU_OFS_DMR2 11'd17
`define OR1200_DU_OFS_DSR 11'd20
`define OR1200_DU_OFS_DRR 11'd21
`define OR1200_DU_OFS_TBADR 11'h0ff
`define OR1200_DU_OFS_TBIA 11'h1xx
`define OR1200_DU_OFS_TBIM 11'h2xx
`define OR1200_DU_OFS_TBAR 11'h3xx
`define OR1200_DU_OFS_TBTS 11'h4xx
 
// Position of offset bits inside SPR address
`define OR1200_DUOFS_BITS 10:0
 
// Define if you want these DU registers to be implemented
`define OR1200_DU_DMR1
`define OR1200_DU_DMR2
`define OR1200_DU_DSR
`define OR1200_DU_DRR
 
// DMR1 bits
`define OR1200_DU_DMR1_ST 22
 
// 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'h00
`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
`define OR1200_DCFGR_NDP 3'h0 // Zero DVR/DCR pairs
`define OR1200_DCFGR_WPCI 1'b0 // WP counters not impl.
`define OR1200_DCFGR_RES1 28'h0000000
/tags/rel_24/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_24/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_24/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_24/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_24/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_24/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_24/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_24/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_24/or1200/rtl/verilog/or1200_cpu.v
0,0 → 1,766
//////////////////////////////////////////////////////////////////////
//// ////
//// 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 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, branch_op,
spr_dat_npc, rf_dataw,
du_stall, du_addr, du_dat_du, du_read, du_write, du_dsr, 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 [`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;
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),
.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),
.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_24/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_24/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_24/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_24/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_24/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_24/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_24/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_24/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_24/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_24/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_24/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_24/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_24/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_24/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_24/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_24/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_24/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_24/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_24/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_24/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_24/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_24/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_24/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_24/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_24/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_24/or1200/rtl/verilog/or1200_ctrl.v
0,0 → 1,1002
//////////////////////////////////////////////////////////////////////
//// ////
//// 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 1.7 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, 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;
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});
end
end
 
endmodule
/tags/rel_24/or1200/rtl/verilog/or1200_except.v
0,0 → 1,569
//////////////////////////////////////////////////////////////////////
//// ////
//// 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 1.14 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, 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 [31:2] 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_24/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_24/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_24/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_24/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_24/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_24/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_24/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_24/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_24/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_24/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_24/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_24/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_24/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_24/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_24/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_24/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_24/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
/tags/rel_24/or1200/syn/synopsys/bin/top.scr
0,0 → 1,231
/*
* Examples of Synopsys Design Compiler
* synthesis script for OR1200 IP core
*
*/
 
TOPLEVEL = or1200_top
TECH = vs_umc18 /* vs_umc18, art_umc18 */
CLK = clk_i
RST = rst_i
CLK_PERIOD = 5 /* 200 MHz */
MAX_AREA = 0 /* Push hard */
DO_UNGROUP = no /* yes, no */
DO_VERIFY = no /* yes, no */
CLK_UNCERTAINTY = 0.1 /* 100 ps */
DFF_CKQ = 0.2 /* Clk to Q in technology time units */
DFF_SETUP = 0.1 /* Setup time in technology time units */
 
/* Starting timestamp */
sh date
 
/*
* Set some basic variables related to environment
*
*/
 
/* Enable Verilog HDL preprocessor */
hdlin_enable_vpp = true
 
/* Set log path */
LOG_PATH = "../log/"
 
/* Set gate-level netlist path */
GATE_PATH = "../out/"
 
/* Set RAMS_PATH */
RAMS_PATH = "../../../lib/"
 
/* Set RTL source path */
RTL_PATH = { "../../../rtl/verilog/" }
 
/* Optimize adders */
synlib_model_map_effort = high
hlo_share_effort = low
 
STAGE = final
 
/*
* Load libraries
*
*/
 
/* Search paths */
search_path = {. /libs/Artisan/aci/sc-x/synopsys/ } + \
{ /libs/Artisan/aci/sc-x/symbols/synopsys/ } + \
{ /libs/art_rams/ } + \
{ /libs/vs_rams/ /usr/dc/libraries/syn/ } + \
{ /libs/Virtual_silicon/UMCL18U250D2_2.1/design_compiler/ }
 
/* Synthetic libraries */
snps = get_unix_variable("SYNOPSYS")
synthetic_library = { \
snps + "/libraries/syn/dw01.sldb" \
snps + "/libraries/syn/dw02.sldb" \
snps + "/libraries/syn/dw03.sldb" \
snps + "/libraries/syn/dw04.sldb" \
snps + "/libraries/syn/dw05.sldb" \
snps + "/libraries/syn/dw06.sldb" \
snps + "/libraries/syn/dw07.sldb" }
 
/* Set Artisan Sage-X UMC 0.18u standard cell library */
if (TECH == "art_umc18") {
target_library = { slow.db \
vs_hdsp_2048x32_wc_1.08V_125C.db \
vs_hdsp_2048x8_tc_1.2V_25C.db \
vs_hdsp_512x20_wc_1.08V_125C.db \
vs_hdsp_64x14_wc_1.08V_125C.db \
vs_hdsp_64x22_wc_1.08V_125C.db \
vs_hdsp_64x24_wc_1.08V_125C.db \
vs_hdtp_64x32_wc_1.08V_125C.db \
}
symbol_library = { umc18.sdb }
}
 
/* Set Virtual Silicon UMC 0.18u standard cell library */
if (TECH == "vs_umc18") {
target_library = { umcl18u250t2_wc.db \
vs_hdsp_2048x32_wc_1.08V_125C.db \
vs_hdsp_2048x8_wc_1.08V_125C.db \
vs_hdsp_512x20_wc_1.08V_125C.db \
vs_hdsp_64x14_wc_1.08V_125C.db \
vs_hdsp_64x22_wc_1.08V_125C.db \
vs_hdsp_64x24_wc_1.08V_125C.db \
vs_hdtp_64x32_wc_1.08V_125C.db \
}
symbol_library = { umcl18u250t2.sdb }
}
 
link_library = target_library + synthetic_library
 
 
/*
* Load HDL source files
*
*/
include ../bin/read_design.inc > LOG_PATH + read_design_ + TOPLEVEL + .log
 
/* Set design top */
current_design TOPLEVEL
 
/* Link all blocks and uniquify them */
link
uniquify
check_design > LOG_PATH + check_design_ + TOPLEVEL + .log
 
/*
* Apply constraints
*
*/
if (TECH == "vs_umc18") {
DFF_CELL = DFFPQ2
LIB_DFF_D = umcl18u250t2_wc/DFFPQ2/D
OPER_COND = WORST
} else if (TECH == "art_umc18") {
DFF_CELL = DFFHQX2
LIB_DFF_D = slow/DFFHQX2/D
OPER_COND = slow
} else {
echo "Error: Unsupported technology"
exit
}
 
 
/* Clocks constraints */
create_clock dwb_clk_i -period CLK_PERIOD
create_clock iwb_clk_i -period CLK_PERIOD
create_clock CLK -period CLK_PERIOD
set_clock_skew all_clocks() -uncertainty CLK_UNCERTAINTY
set_dont_touch_network all_clocks()
 
/* Reset constraints */
set_driving_cell -none RST
set_drive 0 RST
set_dont_touch_network RST
 
/* All inputs except reset and clock */
all_inputs_wo_rst_clk = all_inputs() - CLK - RST
 
/* Set output delays and load for output signals
*
* All outputs are assumed to go directly into
* external flip-flops for the purpose of this
* synthesis
*/
set_output_delay DFF_SETUP -clock CLK all_outputs()
set_load load_of(LIB_DFF_D) * 4 all_outputs()
 
/* Input delay and driving cell of all inputs
*
* All these signals are assumed to come directly from
* flip-flops for the purpose of this synthesis
*
*/
set_input_delay DFF_CKQ -clock CLK all_inputs_wo_rst_clk
set_driving_cell -cell DFF_CELL -pin Q all_inputs_wo_rst_clk
 
/* Set design fanout */
/*
set_max_fanout 10 TOPLEVEL
*/
 
/* Optimize all near-critical paths to give extra slack for layout */
c_range = CLK_PERIOD * 0.10
group_path -critical_range c_range -name CLK -to CLK
 
/* Operating conditions */
set_operating_conditions OPER_COND
 
/* Lets do basic synthesis */
if (DO_UNGROUP == "yes") {
ungroup -all
}
 
set_ultra_optimization -f
compile_new_optimization = true
/*
set_structure -boolean false -timing true
set_flatten -effort medium -minimize single_output
*/
 
/*
set_flatten false
*/
 
/*
compile -boundary_optimization -map_effort medium -ungroup_all
*/
compile -boundary_optimization -map_effort high -auto_ungroup
 
 
/*
compile -map_effort low
*/
 
/* Save current design using synopsys format */
write -hierarchy -format db -output GATE_PATH + STAGE + _ + TOPLEVEL + .db
 
/* Save current design using verilog format */
write -hierarchy -format verilog -output GATE_PATH + STAGE + _ + TOPLEVEL + .v
 
/* Basic reports */
report_area > LOG_PATH + STAGE + _ + TOPLEVEL + _area.log
report_timing -nworst 10 > LOG_PATH + STAGE + _ + TOPLEVEL + _timing.log
report_hierarchy > LOG_PATH + STAGE + _ + TOPLEVEL + _hierarchy.log
report_resources > LOG_PATH + STAGE + _ + TOPLEVEL + _resources.log
report_references > LOG_PATH + STAGE + _ + TOPLEVEL + _references.log
report_constraint > LOG_PATH + STAGE + _ + TOPLEVEL + _constraint.log
report_ultra_optimizations > LOG_PATH + STAGE + _ + TOPLEVEL + _ultra_optimizations.log
/*
report_power > LOG_PATH + STAGE + _ + TOPLEVEL + _power.log
*/
 
 
/* Verify design */
if (DO_VERIFY == "yes") {
compile -no_map -verify > LOG_PATH + verify_ + TOPLEVEL + .log
}
 
/* Finish */
sh date
exit
/tags/rel_24/or1200/syn/synopsys/bin/read_design.inc
0,0 → 1,61
/* Set search path for verilog include files */
search_path = search_path + RTL_PATH + { GATE_PATH }
 
/* Read verilog files of the OR1200 IP core */
if (TOPLEVEL == "or1200_top") {
 
read -f verilog or1200_alu.v
read -f verilog or1200_amultp2_32x32.v
read -f verilog or1200_cfgr.v
read -f verilog or1200_cpu.v
read -f verilog or1200_ctrl.v
read -f verilog or1200_dc_fsm.v
read -f verilog or1200_dc_ram.v
read -f verilog or1200_dc_tag.v
read -f verilog or1200_dc_top.v
read -f verilog or1200_dmmu_tlb.v
read -f verilog or1200_dmmu_top.v
read -f verilog or1200_dpram_32x32.v
read -f verilog or1200_du.v
read -f verilog or1200_except.v
read -f verilog or1200_freeze.v
read -f verilog or1200_genpc.v
read -f verilog or1200_gmultp2_32x32.v
read -f verilog or1200_ic_fsm.v
read -f verilog or1200_ic_ram.v
read -f verilog or1200_ic_tag.v
read -f verilog or1200_ic_top.v
read -f verilog or1200_if.v
read -f verilog or1200_immu_tlb.v
read -f verilog or1200_immu_top.v
read -f verilog or1200_lsu.v
read -f verilog or1200_mem2reg.v
read -f verilog or1200_mult_mac.v
read -f verilog or1200_operandmuxes.v
read -f verilog or1200_pic.v
read -f verilog or1200_pm.v
read -f verilog or1200_reg2mem.v
read -f verilog or1200_rf.v
read -f verilog or1200_rfram_generic.v
read -f verilog or1200_sb.v
read -f verilog or1200_sb_fifo.v
read -f verilog or1200_spram_1024x32.v
read -f verilog or1200_spram_1024x8.v
read -f verilog or1200_spram_2048x32.v
read -f verilog or1200_spram_2048x8.v
read -f verilog or1200_spram_256x21.v
read -f verilog or1200_spram_512x20.v
read -f verilog or1200_spram_64x14.v
read -f verilog or1200_spram_64x22.v
read -f verilog or1200_spram_64x24.v
read -f verilog or1200_sprs.v
read -f verilog or1200_top.v
read -f verilog or1200_tt.v
read -f verilog or1200_wb_biu.v
read -f verilog or1200_wbmux.v
 
} else {
echo "Non-existing top level."
exit
}
 
/tags/rel_24/or1200/syn/synopsys/bin/README
0,0 → 1,7
This directory contains Synopsys Design Compiler synthesis script.
top.scr - main synthesis script
read_design.inc - used by top.scr to read design files
run_syn - shell script to invoke design compiler
 
To run synthesis, go to ../run/
/tags/rel_24/or1200/syn/synopsys/bin/run_syn
0,0 → 1,4
#!/bin/sh -f
 
dc_shell -f ../bin/top.scr > ../log/top.log
mv command.log ../log
tags/rel_24/or1200/syn/synopsys/bin/run_syn Property changes : Added: svn:executable ## -0,0 +1 ## +* \ No newline at end of property Index: tags/rel_24/or1200/syn/synopsys/log/README =================================================================== --- tags/rel_24/or1200/syn/synopsys/log/README (nonexistent) +++ tags/rel_24/or1200/syn/synopsys/log/README (revision 1238) @@ -0,0 +1 @@ +This directory contains report files after synthesis run. Index: tags/rel_24/or1200/syn/synopsys/run/README =================================================================== --- tags/rel_24/or1200/syn/synopsys/run/README (nonexistent) +++ tags/rel_24/or1200/syn/synopsys/run/README (revision 1238) @@ -0,0 +1,6 @@ +This directory is working directory. Before synthesis verify that or1200_defines.v +has correct defines enabled for ASIC target and that synthesis scripts in ../bin/ are +up to date. To run synthesis, do the following: + +$ ../bin/run_syn & + Index: tags/rel_24/or1200/syn/synopsys/out/README =================================================================== --- tags/rel_24/or1200/syn/synopsys/out/README (nonexistent) +++ tags/rel_24/or1200/syn/synopsys/out/README (revision 1238) @@ -0,0 +1 @@ +This directory contains verilog and db netlists after synthesis run. Index: tags/rel_24/or1200/lint/log/README =================================================================== --- tags/rel_24/or1200/lint/log/README (nonexistent) +++ tags/rel_24/or1200/lint/log/README (revision 1238) @@ -0,0 +1 @@ +This directory will contain linter report after running linter. Index: tags/rel_24/or1200/lint/run/README =================================================================== --- tags/rel_24/or1200/lint/run/README (nonexistent) +++ tags/rel_24/or1200/lint/run/README (revision 1238) @@ -0,0 +1,3 @@ +This directory is for running linter script. To run linter do the following: + +$ ../bin/run_lint Index: tags/rel_24/or1200/lint/bin/run_lint =================================================================== --- tags/rel_24/or1200/lint/bin/run_lint (nonexistent) +++ tags/rel_24/or1200/lint/bin/run_lint (revision 1238) @@ -0,0 +1,55 @@ +#!/bin/sh +nLint \ +../../rtl/verilog/or1200_alu.v \ +../../rtl/verilog/or1200_amultp2_32x32.v \ +../../rtl/verilog/or1200_cfgr.v \ +../../rtl/verilog/or1200_cpu.v \ +../../rtl/verilog/or1200_ctrl.v \ +../../rtl/verilog/or1200_dc_fsm.v \ +../../rtl/verilog/or1200_dc_ram.v \ +../../rtl/verilog/or1200_dc_tag.v \ +../../rtl/verilog/or1200_dc_top.v \ +../../rtl/verilog/or1200_defines.v \ +../../rtl/verilog/or1200_dmmu_tlb.v \ +../../rtl/verilog/or1200_dmmu_top.v \ +../../rtl/verilog/or1200_dpram_32x32.v \ +../../rtl/verilog/or1200_du.v \ +../../rtl/verilog/or1200_except.v \ +../../rtl/verilog/or1200_freeze.v \ +../../rtl/verilog/or1200_genpc.v \ +../../rtl/verilog/or1200_gmultp2_32x32.v \ +../../rtl/verilog/or1200_ic_fsm.v \ +../../rtl/verilog/or1200_ic_ram.v \ +../../rtl/verilog/or1200_ic_tag.v \ +../../rtl/verilog/or1200_ic_top.v \ +../../rtl/verilog/or1200_if.v \ +../../rtl/verilog/or1200_immu_tlb.v \ +../../rtl/verilog/or1200_immu_top.v \ +../../rtl/verilog/or1200_lsu.v \ +../../rtl/verilog/or1200_mem2reg.v \ +../../rtl/verilog/or1200_mult_mac.v \ +../../rtl/verilog/or1200_operandmuxes.v \ +../../rtl/verilog/or1200_pic.v \ +../../rtl/verilog/or1200_pm.v \ +../../rtl/verilog/or1200_reg2mem.v \ +../../rtl/verilog/or1200_rf.v \ +../../rtl/verilog/or1200_rfram_generic.v \ +../../rtl/verilog/or1200_sb.v \ +../../rtl/verilog/or1200_sb_fifo.v \ +../../rtl/verilog/or1200_spram_1024x32.v \ +../../rtl/verilog/or1200_spram_1024x8.v \ +../../rtl/verilog/or1200_spram_2048x32.v \ +../../rtl/verilog/or1200_spram_2048x8.v \ +../../rtl/verilog/or1200_spram_256x21.v \ +../../rtl/verilog/or1200_spram_512x20.v \ +../../rtl/verilog/or1200_spram_64x14.v \ +../../rtl/verilog/or1200_spram_64x22.v \ +../../rtl/verilog/or1200_spram_64x24.v \ +../../rtl/verilog/or1200_sprs.v \ +../../rtl/verilog/or1200_top.v \ +../../rtl/verilog/or1200_tpram_32x32.v \ +../../rtl/verilog/or1200_tt.v \ +../../rtl/verilog/or1200_wb_biu.v \ +../../rtl/verilog/or1200_wbmux.v \ +../../rtl/verilog/or1200_xcv_ram32x8d.v > ../log/nlint.log && \ +mv nLintLog ../log &
tags/rel_24/or1200/lint/bin/run_lint Property changes : Added: svn:executable ## -0,0 +1 ## +* \ No newline at end of property Index: tags/rel_24/or1200/lint/bin/README =================================================================== --- tags/rel_24/or1200/lint/bin/README (nonexistent) +++ tags/rel_24/or1200/lint/bin/README (revision 1238) @@ -0,0 +1 @@ +Linter script. For running linter, go to ../run. Index: tags/rel_24/or1200/bench/README =================================================================== --- tags/rel_24/or1200/bench/README (nonexistent) +++ tags/rel_24/or1200/bench/README (revision 1238) @@ -0,0 +1 @@ +Test bench for or1200 is available in opencores cvs under or1k/orp. Index: tags/rel_24/or1200/sim/README =================================================================== --- tags/rel_24/or1200/sim/README (nonexistent) +++ tags/rel_24/or1200/sim/README (revision 1238) @@ -0,0 +1 @@ +Simulation scripts for or1200 are available in opencores cvs under or1k/orp. Index: tags/rel_24/or1200/doc/openrisc1200_spec.doc =================================================================== Cannot display: file marked as a binary type. svn:mime-type = application/octet-stream Index: tags/rel_24/or1200/doc/openrisc1200_spec.doc =================================================================== --- tags/rel_24/or1200/doc/openrisc1200_spec.doc (nonexistent) +++ tags/rel_24/or1200/doc/openrisc1200_spec.doc (revision 1238)
tags/rel_24/or1200/doc/openrisc1200_spec.doc Property changes : Added: svn:mime-type ## -0,0 +1 ## +application/octet-stream \ No newline at end of property Index: tags/rel_24/or1200/doc/openrisc1200_spec.pdf =================================================================== Cannot display: file marked as a binary type. svn:mime-type = application/octet-stream Index: tags/rel_24/or1200/doc/openrisc1200_spec.pdf =================================================================== --- tags/rel_24/or1200/doc/openrisc1200_spec.pdf (nonexistent) +++ tags/rel_24/or1200/doc/openrisc1200_spec.pdf (revision 1238)
tags/rel_24/or1200/doc/openrisc1200_spec.pdf Property changes : Added: svn:mime-type ## -0,0 +1 ## +application/octet-stream \ No newline at end of property Index: tags/rel_24/or1200/lib/README =================================================================== --- tags/rel_24/or1200/lib/README (nonexistent) +++ tags/rel_24/or1200/lib/README (revision 1238) @@ -0,0 +1 @@ +This directory containts memory and standard cell libraries. However proprietary libraries are not in OpenCores CVS. \ No newline at end of file Index: tags/rel_24/docs/openrisc1200_spec.doc =================================================================== Cannot display: file marked as a binary type. svn:mime-type = application/octet-stream Index: tags/rel_24/docs/openrisc1200_spec.doc =================================================================== --- tags/rel_24/docs/openrisc1200_spec.doc (nonexistent) +++ tags/rel_24/docs/openrisc1200_spec.doc (revision 1238)
tags/rel_24/docs/openrisc1200_spec.doc Property changes : Added: svn:mime-type ## -0,0 +1 ## +application/octet-stream \ No newline at end of property Index: tags/rel_24/docs/openrisc1200_spec.pdf =================================================================== Cannot display: file marked as a binary type. svn:mime-type = application/octet-stream Index: tags/rel_24/docs/openrisc1200_spec.pdf =================================================================== --- tags/rel_24/docs/openrisc1200_spec.pdf (nonexistent) +++ tags/rel_24/docs/openrisc1200_spec.pdf (revision 1238)
tags/rel_24/docs/openrisc1200_spec.pdf Property changes : Added: svn:mime-type ## -0,0 +1 ## +application/octet-stream \ No newline at end of property

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