OpenCores
URL https://opencores.org/ocsvn/versatile_library/versatile_library/trunk

Subversion Repositories versatile_library

Compare Revisions

  • This comparison shows the changes necessary to convert path 
    /versatile_library/trunk/rtl/verilog
    from Rev 40 to Rev 39
    ↔ Reverse comparison
  •

Rev 40 → Rev 39

/versatile_counter_generator.php File deleted
versatile_counter_generator.php Property changes : Deleted: svn:executable ## -1 +0,0 ## -* \ No newline at end of property Index: CSV.class.php =================================================================== --- CSV.class.php (revision 40) +++ CSV.class.php (nonexistent) @@ -1,91 +0,0 @@ -file = fopen($fileName,'r'); - - $this->parseHeader(); - - } - - protected function getLine() { - - $line = fgetcsv($this->file); - - if($this->isEmpty($line)) { - return false; - } else { - return $line; - } - - } - - function parseHeader() { - - do { - - $this->header = $this->getLine(); - - } while($this->header === false and !feof($this->file)); - - return (count($this->header) > 0); - - } - - function getRow() { - - $array = $this->getLine(); - - if($array === false) { - - return false; - - } else { - - $return = array(); - - foreach($array as $key => $val) { - $return[$this->header[$key]] = $val; - } - - return $return; - - } - - } - - function getRows() { - - $return = array(); - - while($row = $this->getRow()) { - $return[] = $row; - } - - return $return; - - } - - function isEmpty($row) { - if($row === false or $row === array(null)) { - return true; - } else { - foreach($row as $cur) { - if(trim($cur) != '') { - return false; - } - } - return true; - } - } - - function __destruct() { - fclose($this->file); - } - -} Index: defines.v =================================================================== --- defines.v (revision 40) +++ defines.v (nonexistent) @@ -1,211 +0,0 @@ -`ifndef BASE -`define BASE vl_ -`endif - -`ifdef ALL - -`define GBUF -`define SYNC_RST -`define PLL - -`define MULTS -`define MULTS18X18 -`define MULT -`define SHIFT_UNIT_32 -`define LOGIC_UNIT - -`define CNT_SHREG_WRAP -`define CNT_SHREG_CE_WRAP -`define CNT_SHREG_CE_CLEAR -`define CNT_SHREG_CE_CLEAR_WRAP - -`define MUX_ANDOR -`define MUX2_ANDOR -`define MUX3_ANDOR -`define MUX4_ANDOR -`define MUX5_ANDOR -`define MUX6_ANDOR - -`define ROM_INIT -`define RAM -`define RAM_BE -`define DPRAM_1R1W -`define DPRAM_2R1W -`define DPRAM_2R2W -`define FIFO_1R1W_FILL_LEVEL_SYNC -`define FIFO_2R2W_SYNC_SIMPLEX -`define FIFO_CMP_ASYNC -`define FIFO_1R1W_ASYNC -`define FIFO_2R2W_ASYNC -`define FIFO_2R2W_ASYNC_SIMPLEX - -`define DFF -`define DFF_ARRAY -`define DFF_CE -`define DFF_CE_CLEAR -`define DF_CE_SET -`define SPR -`define SRP -`define DFF_SR -`define LATCH -`define SHREG -`define SHREG_CE -`define DELAY -`define DELAY_EMPTYFLAG - -`define WB3WB3_BRIDGE -`define WB3_ARBITER_TYPE1 -`define WB_BOOT_ROM -`define WB_DPRAM - -`endif - -`ifdef PLL -`ifndef SYNC_RST -`define SYNC_RST -`endif -`endif - -`ifdef SYNC_RST -`ifndef GBUF -`define GBUF -`endif -`endif - -`ifdef WB_DPRAM -`ifndef DPRAM_2R2W -`define DPRAM_2R2W -`endif -`ifndef SPR -`define SPR -`endif -`endif - -`ifdef WB3_ARBITER_TYPE1 -`ifndef MUX_ANDOR -`define MUX_ANDOR -`endif -`endif - -`ifdef WB3WB3_BRIDGE -`ifndef CNT_SHREG_CE_CLEAR -`define CNT_SHREG_CE_CLEAR -`endif -`ifndef DFF -`define DFF -`endif -`ifndef DFF_CE -`define DFF_CE -`endif -`ifndef CNT_SHREG_CE_CLEAR -`define CNT_SHREG_CE_CLEAR -`endif -`ifndef FIFO_2R2W_ASYNC_SIMPLEX -`define FIFO_2R2W_ASYNC_SIMPLEX -`endif -`endif - -`ifdef MULTS18X18 -`ifndef MULTS -`define MULTS -`endif -`endif - -`ifdef SHIFT_UNIT_32 -`ifndef MULTS -`define MULTS -`endif -`endif - -`ifdef MUX2_ANDOR -`ifndef MUX_ANDOR -`define MUX_ANDOR -`endif -`endif - -`ifdef MUX3_ANDOR -`ifndef MUX_ANDOR -`define MUX_ANDOR -`endif -`endif - -`ifdef MUX4_ANDOR -`ifndef MUX_ANDOR -`define MUX_ANDOR -`endif -`endif - -`ifdef MUX5_ANDOR -`ifndef MUX_ANDOR -`define MUX_ANDOR -`endif -`endif - -`ifdef MUX6_ANDOR -`ifndef MUX_ANDOR -`define MUX_ANDOR -`endif -`endif - -`ifdef FIFO_1R1W_FILL_LEVEL_SYNC -`ifndef CNT_BIN_CE -`define CNT_BIN_CE -`endif -`ifndef DPRAM_1R1W -`define DPRAM_1R1W -`endif -`ifndef CNT_BIN_CE_REW_Q_ZQ_L1 -`define CNT_BIN_CE_REW_Q_ZQ_L1 -`endif -`endif - -`ifdef FIFO_1R1W_FILL_LEVEL_SYNC -`ifndef CNT_LFSR_CE -`define CNT_LFSR_CE -`endif -`ifndef DPRAM_2R2W -`define DPRAM_2R2W -`endif -`ifndef CNT_BIN_CE_REW_ZQ_L1 -`define CNT_BIN_CE_REW_ZQ_L1 -`endif -`endif - -`ifdef FIFO_2R2W_ASYNC_SIMPLEX -`ifndef CNT_GRAY_CE_BIN -`define CNT_GRAY_CE_BIN -`endif -`ifndef DPRAM_2R2W -`define DPRAM_2R2W -`endif -`ifndef FIFO_CMP_ASYNC -`define FIFO_CMP_ASYNC -`endif -`endif - -`ifdef FIFO_2R2W_ASYNC -`ifndef FIFO_1R1W_ASYNC -`define FIFO_1R1W_ASYNC -`endif -`endif - -`ifdef FIFO_1R1W_ASYNC -`ifndef CNT_GRAY_CE_BIN -`define CNT_GRAY_CE_BIN -`endif -`ifndef DPRAM_1R1W -`define DPRAM_1R1W -`endif -`ifndef FIFO_CMP_ASYNC -`define FIFO_CMP_ASYNC -`endif -`endif - -`ifdef FIFO_CMP_ASYNC -`ifndef DFF_SR -`define DFF_SR -`endif -`ifndef DFF -`define DFF -`endif -`endif Index: versatile_library.v =================================================================== --- versatile_library.v (revision 40) +++ versatile_library.v (revision 39) @@ -1,214 +1,3 @@ -`ifndef BASE -`define BASE vl_ -`endif - -`ifdef ALL - -`define GBUF -`define SYNC_RST -`define PLL - -`define MULTS -`define MULTS18X18 -`define MULT -`define SHIFT_UNIT_32 -`define LOGIC_UNIT - -`define CNT_SHREG_WRAP -`define CNT_SHREG_CE_WRAP -`define CNT_SHREG_CE_CLEAR -`define CNT_SHREG_CE_CLEAR_WRAP - -`define MUX_ANDOR -`define MUX2_ANDOR -`define MUX3_ANDOR -`define MUX4_ANDOR -`define MUX5_ANDOR -`define MUX6_ANDOR - -`define ROM_INIT -`define RAM -`define RAM_BE -`define DPRAM_1R1W -`define DPRAM_2R1W -`define DPRAM_2R2W -`define FIFO_1R1W_FILL_LEVEL_SYNC -`define FIFO_2R2W_SYNC_SIMPLEX -`define FIFO_CMP_ASYNC -`define FIFO_1R1W_ASYNC -`define FIFO_2R2W_ASYNC -`define FIFO_2R2W_ASYNC_SIMPLEX - -`define DFF -`define DFF_ARRAY -`define DFF_CE -`define DFF_CE_CLEAR -`define DF_CE_SET -`define SPR -`define SRP -`define DFF_SR -`define LATCH -`define SHREG -`define SHREG_CE -`define DELAY -`define DELAY_EMPTYFLAG - -`define WB3WB3_BRIDGE -`define WB3_ARBITER_TYPE1 -`define WB_BOOT_ROM -`define WB_DPRAM - -`endif - -`ifdef PLL -`ifndef SYNC_RST -`define SYNC_RST -`endif -`endif - -`ifdef SYNC_RST -`ifndef GBUF -`define GBUF -`endif -`endif - -`ifdef WB_DPRAM -`ifndef DPRAM_2R2W -`define DPRAM_2R2W -`endif -`ifndef SPR -`define SPR -`endif -`endif - -`ifdef WB3_ARBITER_TYPE1 -`ifndef MUX_ANDOR -`define MUX_ANDOR -`endif -`endif - -`ifdef WB3WB3_BRIDGE -`ifndef CNT_SHREG_CE_CLEAR -`define CNT_SHREG_CE_CLEAR -`endif -`ifndef DFF -`define DFF -`endif -`ifndef DFF_CE -`define DFF_CE -`endif -`ifndef CNT_SHREG_CE_CLEAR -`define CNT_SHREG_CE_CLEAR -`endif -`ifndef FIFO_2R2W_ASYNC_SIMPLEX -`define FIFO_2R2W_ASYNC_SIMPLEX -`endif -`endif - -`ifdef MULTS18X18 -`ifndef MULTS -`define MULTS -`endif -`endif - -`ifdef SHIFT_UNIT_32 -`ifndef MULTS -`define MULTS -`endif -`endif - -`ifdef MUX2_ANDOR -`ifndef MUX_ANDOR -`define MUX_ANDOR -`endif -`endif - -`ifdef MUX3_ANDOR -`ifndef MUX_ANDOR -`define MUX_ANDOR -`endif -`endif - -`ifdef MUX4_ANDOR -`ifndef MUX_ANDOR -`define MUX_ANDOR -`endif -`endif - -`ifdef MUX5_ANDOR -`ifndef MUX_ANDOR -`define MUX_ANDOR -`endif -`endif - -`ifdef MUX6_ANDOR -`ifndef MUX_ANDOR -`define MUX_ANDOR -`endif -`endif - -`ifdef FIFO_1R1W_FILL_LEVEL_SYNC -`ifndef CNT_BIN_CE -`define CNT_BIN_CE -`endif -`ifndef DPRAM_1R1W -`define DPRAM_1R1W -`endif -`ifndef CNT_BIN_CE_REW_Q_ZQ_L1 -`define CNT_BIN_CE_REW_Q_ZQ_L1 -`endif -`endif - -`ifdef FIFO_1R1W_FILL_LEVEL_SYNC -`ifndef CNT_LFSR_CE -`define CNT_LFSR_CE -`endif -`ifndef DPRAM_2R2W -`define DPRAM_2R2W -`endif -`ifndef CNT_BIN_CE_REW_ZQ_L1 -`define CNT_BIN_CE_REW_ZQ_L1 -`endif -`endif - -`ifdef FIFO_2R2W_ASYNC_SIMPLEX -`ifndef CNT_GRAY_CE_BIN -`define CNT_GRAY_CE_BIN -`endif -`ifndef DPRAM_2R2W -`define DPRAM_2R2W -`endif -`ifndef FIFO_CMP_ASYNC -`define FIFO_CMP_ASYNC -`endif -`endif - -`ifdef FIFO_2R2W_ASYNC -`ifndef FIFO_1R1W_ASYNC -`define FIFO_1R1W_ASYNC -`endif -`endif - -`ifdef FIFO_1R1W_ASYNC -`ifndef CNT_GRAY_CE_BIN -`define CNT_GRAY_CE_BIN -`endif -`ifndef DPRAM_1R1W -`define DPRAM_1R1W -`endif -`ifndef FIFO_CMP_ASYNC -`define FIFO_CMP_ASYNC -`endif -`endif - -`ifdef FIFO_CMP_ASYNC -`ifndef DFF_SR -`define DFF_SR -`endif -`ifndef DFF -`define DFF -`endif -`endif ////////////////////////////////////////////////////////////////////// //// //// //// Versatile library, clock and reset //// @@ -256,7 +45,7 @@ // use to enable global buffers for high fan out signals such as clock and reset `ifdef ACTEL -`ifdef GBUF + `timescale 1 ns/100 ps // Version: 8.4 8.4.0.33 module gbuf(GL,CLK); @@ -271,9 +60,7 @@ endmodule `timescale 1 ns/1 ns -`define MODULE gbuf -module `BASE`MODULE ( i, o); -`undef MODULE +module vl_gbuf ( i, o); input i; output o; `ifdef SIM_GBUF @@ -282,45 +69,33 @@ gbuf gbuf_i0 ( .CLK(i), .GL(o)); `endif endmodule -`endif `else -`ifdef ALTERA -`ifdef GBUF +`ifdef ALTERA //altera -`define MODULE gbuf -module `BASE`MODULE ( i, o); -`undef MODULE +module vl_gbuf ( i, o); input i; output o; assign o = i; endmodule -`endif `else -`ifdef GBUF `timescale 1 ns/100 ps -`define MODULE -module `BASE`MODULE ( i, o); -`undef MODULE +module vl_gbuf ( i, o); input i; output o; assign o = i; endmodule -`endif `endif // ALTERA `endif //ACTEL -`ifdef SYNC_RST // sync reset // input active lo async reset, normally from external reset generator and/or switch // output active high global reset sync with two DFFs `timescale 1 ns/100 ps -`define MODULE sync_rst -module `BASE`MODULE ( rst_n_i, rst_o, clk); -`undef MODULE +module vl_sync_rst ( rst_n_i, rst_o, clk); input rst_n_i, clk; output rst_o; reg [1:0] tmp; @@ -329,20 +104,14 @@ tmp <= 2'b11; else tmp <= {1'b0,tmp[1]}; -`define MODULE gbuf -`BASE`MODULE buf_i0( .i(tmp[0]), .o(rst_o)); -`undef MODULE +vl_gbuf buf_i0( .i(tmp[0]), .o(rst_o)); endmodule -`endif -`ifdef PLL // vl_pll `ifdef ACTEL /////////////////////////////////////////////////////////////////////////////// `timescale 1 ps/1 ps -`define MODULE pll -module `BASE`MODULE ( clk_i, rst_n_i, lock, clk_o, rst_o); -`undef MODULE +module vl_pll ( clk_i, rst_n_i, lock, clk_o, rst_o); parameter index = 0; parameter number_of_clk = 1; parameter period_time_0 = 20000; @@ -432,9 +201,7 @@ genvar i; generate for (i=0;i>1) ^ q_next; endmodule -`endif -`ifdef CNT_GRAY_CE ////////////////////////////////////////////////////////////////////// //// //// //// Versatile counter //// @@ -2989,12 +2554,8 @@ ////////////////////////////////////////////////////////////////////// // GRAY counter +module vl_cnt_gray_ce ( cke, q, rst, clk); -`define MODULE cnt_gray_ce -module `BASE`MODULE ( -`undef MODULE - cke, q, rst, clk); - parameter length = 4; input cke; output reg [length:1] q; @@ -3025,8 +2586,6 @@ q <= (q_next>>1) ^ q_next; endmodule -`endif -`ifdef CNT_GRAY_CE_BIN ////////////////////////////////////////////////////////////////////// //// //// //// Versatile counter //// @@ -3070,12 +2629,8 @@ ////////////////////////////////////////////////////////////////////// // GRAY counter +module vl_cnt_gray_ce_bin ( cke, q, q_bin, rst, clk); -`define MODULE cnt_gray_ce_bin -module `BASE`MODULE ( -`undef MODULE - cke, q, q_bin, rst, clk); - parameter length = 4; input cke; output reg [length:1] q; @@ -3109,7 +2664,6 @@ assign q_bin = qi; endmodule -`endif ////////////////////////////////////////////////////////////////////// //// //// //// Versatile library, counters //// @@ -3152,10 +2706,7 @@ //// //// ////////////////////////////////////////////////////////////////////// -`ifdef CNT_SHREG_WRAP -`define MODULE cnt_shreg_wrap -module `BASE`MODULE ( q, rst, clk); -`undef MODULE +module vl_cnt_shreg_wrap ( q, rst, clk); parameter length = 4; output reg [0:length-1] q; @@ -3169,12 +2720,8 @@ q <= {q[length-1],q[0:length-2]}; endmodule -`endif -`ifdef CNT_SHREG_CE_WRAP -`define MODULE cnt_shreg_ce_wrap -module `BASE`MODULE ( cke, q, rst, clk); -`undef MODULE +module vl_cnt_shreg_ce_wrap ( cke, q, rst, clk); parameter length = 4; input cke; @@ -3190,12 +2737,8 @@ q <= {q[length-1],q[0:length-2]}; endmodule -`endif -`ifdef CNT_SHREG_CE_CLEAR -`define MODULE cnt_shreg_ce_clear -module `BASE`MODULE ( cke, clear, q, rst, clk); -`undef MODULE +module vl_cnt_shreg_ce_clear ( cke, clear, q, rst, clk); parameter length = 4; input cke, clear; @@ -3214,12 +2757,8 @@ q <= q >> 1; endmodule -`endif -`ifdef CNT_SHREG_CE_CLEAR_WRAP -`define MODULE cnt_shreg_ce_clear_wrap -module `BASE`MODULE ( cke, clear, q, rst, clk); -`undef MODULE +module vl_cnt_shreg_ce_clear_wrap ( cke, clear, q, rst, clk); parameter length = 4; input cke, clear; @@ -3238,7 +2777,6 @@ q <= {q[length-1],q[0:length-2]}; endmodule -`endif ////////////////////////////////////////////////////////////////////// //// //// //// Versatile library, memories //// @@ -3281,12 +2819,9 @@ //// //// ////////////////////////////////////////////////////////////////////// -`ifdef ROM_INIT /// ROM -`define MODULE rom_init -module `BASE`MODULE ( adr, q, clk); -`undef MODULE +module vl_rom_init ( adr, q, clk); parameter data_width = 32; parameter addr_width = 8; input [(addr_width-1):0] adr; @@ -3303,7 +2838,6 @@ q <= rom[adr]; endmodule -`endif /* module vl_rom ( adr, q, clk); @@ -3338,13 +2872,9 @@ endmodule */ - -`ifdef RAM -`define MODULE ram // Single port RAM -module `BASE`MODULE ( d, adr, we, q, clk); -`undef MODULE +module vl_ram ( d, adr, we, q, clk); parameter data_width = 32; parameter addr_width = 8; input [(data_width-1):0] d; @@ -3371,13 +2901,8 @@ end endmodule -`endif -`ifdef RAM_BE -`define MODULE ram_be -module `BASE`MODULE ( d, adr, be, we, q, clk); -`undef MODULE - +module vl_ram_be ( d, adr, be, we, q, clk); parameter data_width = 32; parameter addr_width = 8; input [(data_width-1):0] d; @@ -3411,8 +2936,8 @@ q <= ram[adr]; endmodule -`endif + // Dual port RAM // ACTEL FPGA should not use logic to handle rw collision @@ -3422,10 +2947,7 @@ `define SYN `endif -`ifdef DPRAM_1R1W -`define MODULE dpram_1r1w -module `BASE`MODULE ( d_a, adr_a, we_a, clk_a, q_b, adr_b, clk_b ); -`undef MODULE +module vl_dpram_1r1w ( d_a, adr_a, we_a, clk_a, q_b, adr_b, clk_b ); parameter data_width = 32; parameter addr_width = 8; input [(data_width-1):0] d_a; @@ -3453,15 +2975,9 @@ always @ (posedge clk_b) adr_b_reg <= adr_b; assign q_b = ram[adr_b_reg]; - endmodule -`endif -`ifdef DPRAM_2R1W -`define MODULE dpram_2r1w -module `BASE`MODULE ( d_a, q_a, adr_a, we_a, clk_a, q_b, adr_b, clk_b ); -`undef MODULE - +module vl_dpram_2r1w ( d_a, q_a, adr_a, we_a, clk_a, q_b, adr_b, clk_b ); parameter data_width = 32; parameter addr_width = 8; input [(data_width-1):0] d_a; @@ -3493,13 +3009,8 @@ always @ (posedge clk_b) q_b <= ram[adr_b]; endmodule -`endif -`ifdef DPRAM_2R2W -`define MODULE dpram_2r2w -module `BASE`MODULE ( d_a, q_a, adr_a, we_a, clk_a, d_b, q_b, adr_b, we_b, clk_b ); -`undef MODULE - +module vl_dpram_2r2w ( d_a, q_a, adr_a, we_a, clk_a, d_b, q_b, adr_b, we_b, clk_b ); parameter data_width = 32; parameter addr_width = 8; input [(data_width-1):0] d_a; @@ -3537,15 +3048,11 @@ ram[adr_b] <= d_b; end endmodule -`endif // Content addresable memory, CAM -`ifdef FIFO_1R1W_FILL_LEVEL_SYNC // FIFO -`define MODULE fifo_1r1w_fill_level_sync -module `BASE`MODULE ( -`undef MODULE +module vl_fifo_1r1w_fill_level_sync ( d, wr, fifo_full, q, rd, fifo_empty, fill_level, @@ -3569,36 +3076,28 @@ wire [addr_width:1] wadr, radr; -`define MODULE cnt_bin_ce -`BASE`MODULE +vl_cnt_bin_ce # ( .length(addr_width)) fifo_wr_adr( .cke(wr), .q(wadr), .rst(rst), .clk(clk)); -`BASE`MODULE + +vl_cnt_bin_ce # (.length(addr_width)) fifo_rd_adr( .cke(rd), .q(radr), .rst(rst), .clk(clk)); -`undef MODULE -`define MODULE dpram_1r1w -`BASE`MODULE +vl_dpram_1r1w # (.data_width(data_width), .addr_width(addr_width)) dpram ( .d_a(d), .adr_a(wadr), .we_a(wr), .clk_a(clk), .q_b(q), .adr_b(radr), .clk_b(clk)); -`undef MODULE -`define MODULE cnt_bin_ce_rew_q_zq_l1 -`BASE`MODULE +vl_cnt_bin_ce_rew_q_zq_l1 # (.length(addr_width+1), .level1_value(1<
/versatile_library_actel.v
161,7 → 161,7
endgenerate // index==0
genvar i;
generate for (i=0;i<number_of_clk;i=i+1) begin: clock
vl_sync_rst rst_i0 ( .rst_n_i(rst_n_i | lock), .rst_o(rst_o), .clk(clk_o[i]));
vl_sync_rst rst_i0 ( .rst_n_i(rst_n_i | lock), .rst_o(rst_o), .clk(clk_o[i]));
end
endgenerate
endmodule
332,7 → 332,7
endmodule
// LATCH
// For targtes not supporting LATCH use dff_sr with clk=1 and data=1
module vl_latch ( d, le, q, clk);
module latch ( d, le, q, clk);
input d, le;
output q;
input clk;/*
544,9 → 544,131
//// ////
//////////////////////////////////////////////////////////////////////
// binary counter
module vl_cnt_bin_ce (
cke, q, rst, clk);
module vl_cnt_bin ( q, rst, clk);
parameter length = 4;
output [length:1] q;
input rst;
input clk;
parameter clear_value = 0;
parameter set_value = 1;
parameter wrap_value = 0;
parameter level1_value = 15;
reg [length:1] qi;
wire [length:1] q_next;
assign q_next = qi + {{length-1{1'b0}},1'b1};
always @ (posedge clk or posedge rst)
if (rst)
qi <= {length{1'b0}};
else
qi <= q_next;
assign q = qi;
endmodule
//////////////////////////////////////////////////////////////////////
//// ////
//// Versatile counter ////
//// ////
//// Description ////
//// Versatile counter, a reconfigurable binary, gray or LFSR ////
//// counter ////
//// ////
//// To Do: ////
//// - add LFSR with more taps ////
//// ////
//// Author(s): ////
//// - Michael Unneback, unneback@opencores.org ////
//// ORSoC AB ////
//// ////
//////////////////////////////////////////////////////////////////////
//// ////
//// Copyright (C) 2009 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 ////
//// ////
//////////////////////////////////////////////////////////////////////
// binary counter
module vl_cnt_bin_clear ( clear, q, rst, clk);
parameter length = 4;
input clear;
output [length:1] q;
input rst;
input clk;
parameter clear_value = 0;
parameter set_value = 1;
parameter wrap_value = 0;
parameter level1_value = 15;
reg [length:1] qi;
wire [length:1] q_next;
assign q_next = clear ? {length{1'b0}} :qi + {{length-1{1'b0}},1'b1};
always @ (posedge clk or posedge rst)
if (rst)
qi <= {length{1'b0}};
else
qi <= q_next;
assign q = qi;
endmodule
//////////////////////////////////////////////////////////////////////
//// ////
//// Versatile counter ////
//// ////
//// Description ////
//// Versatile counter, a reconfigurable binary, gray or LFSR ////
//// counter ////
//// ////
//// To Do: ////
//// - add LFSR with more taps ////
//// ////
//// Author(s): ////
//// - Michael Unneback, unneback@opencores.org ////
//// ORSoC AB ////
//// ////
//////////////////////////////////////////////////////////////////////
//// ////
//// Copyright (C) 2009 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 ////
//// ////
//////////////////////////////////////////////////////////////////////
// binary counter
module vl_cnt_bin_ce ( cke, q, rst, clk);
parameter length = 4;
input cke;
output [length:1] q;
input rst;
608,11 → 730,311
//// ////
//////////////////////////////////////////////////////////////////////
// binary counter
module vl_cnt_bin_ce_rew_zq_l1 (
cke, rew, zq, level1, rst, clk);
module vl_cnt_bin_ce_clear ( clear, cke, q, rst, clk);
parameter length = 4;
input clear;
input cke;
output [length:1] q;
input rst;
input clk;
parameter clear_value = 0;
parameter set_value = 1;
parameter wrap_value = 0;
parameter level1_value = 15;
reg [length:1] qi;
wire [length:1] q_next;
assign q_next = clear ? {length{1'b0}} :qi + {{length-1{1'b0}},1'b1};
always @ (posedge clk or posedge rst)
if (rst)
qi <= {length{1'b0}};
else
if (cke)
qi <= q_next;
assign q = qi;
endmodule
//////////////////////////////////////////////////////////////////////
//// ////
//// Versatile counter ////
//// ////
//// Description ////
//// Versatile counter, a reconfigurable binary, gray or LFSR ////
//// counter ////
//// ////
//// To Do: ////
//// - add LFSR with more taps ////
//// ////
//// Author(s): ////
//// - Michael Unneback, unneback@opencores.org ////
//// ORSoC AB ////
//// ////
//////////////////////////////////////////////////////////////////////
//// ////
//// Copyright (C) 2009 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 ////
//// ////
//////////////////////////////////////////////////////////////////////
// binary counter
module vl_cnt_bin_ce_clear_l1_l2 ( clear, cke, q, level1, level2, rst, clk);
parameter length = 4;
input clear;
input cke;
output [length:1] q;
output reg level1;
output reg level2;
input rst;
input clk;
parameter clear_value = 0;
parameter set_value = 1;
parameter wrap_value = 15;
parameter level1_value = 8;
parameter level2_value = 15;
wire rew;
assign rew = 1'b0;
reg [length:1] qi;
wire [length:1] q_next;
assign q_next = clear ? {length{1'b0}} :qi + {{length-1{1'b0}},1'b1};
always @ (posedge clk or posedge rst)
if (rst)
qi <= {length{1'b0}};
else
if (cke)
qi <= q_next;
assign q = qi;
always @ (posedge clk or posedge rst)
if (rst)
level1 <= 1'b0;
else
if (cke)
if (clear)
level1 <= 1'b0;
else if (q_next == level1_value)
level1 <= 1'b1;
else if (qi == level1_value & rew)
level1 <= 1'b0;
always @ (posedge clk or posedge rst)
if (rst)
level2 <= 1'b0;
else
if (cke)
if (clear)
level2 <= 1'b0;
else if (q_next == level2_value)
level2 <= 1'b1;
else if (qi == level2_value & rew)
level2 <= 1'b0;
endmodule
//////////////////////////////////////////////////////////////////////
//// ////
//// Versatile counter ////
//// ////
//// Description ////
//// Versatile counter, a reconfigurable binary, gray or LFSR ////
//// counter ////
//// ////
//// To Do: ////
//// - add LFSR with more taps ////
//// ////
//// Author(s): ////
//// - Michael Unneback, unneback@opencores.org ////
//// ORSoC AB ////
//// ////
//////////////////////////////////////////////////////////////////////
//// ////
//// Copyright (C) 2009 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 ////
//// ////
//////////////////////////////////////////////////////////////////////
// binary counter
module vl_cnt_bin_ce_clear_set_rew ( clear, set, cke, rew, q, rst, clk);
parameter length = 4;
input clear;
input set;
input cke;
input rew;
output [length:1] q;
input rst;
input clk;
parameter clear_value = 0;
parameter set_value = 1;
parameter wrap_value = 0;
parameter level1_value = 15;
reg [length:1] qi;
wire [length:1] q_next, q_next_fw, q_next_rew;
assign q_next_fw = clear ? {length{1'b0}} : set ? set_value :qi + {{length-1{1'b0}},1'b1};
assign q_next_rew = clear ? clear_value : set ? set_value :qi - {{length-1{1'b0}},1'b1};
assign q_next = rew ? q_next_rew : q_next_fw;
always @ (posedge clk or posedge rst)
if (rst)
qi <= {length{1'b0}};
else
if (cke)
qi <= q_next;
assign q = qi;
endmodule
//////////////////////////////////////////////////////////////////////
//// ////
//// Versatile counter ////
//// ////
//// Description ////
//// Versatile counter, a reconfigurable binary, gray or LFSR ////
//// counter ////
//// ////
//// To Do: ////
//// - add LFSR with more taps ////
//// ////
//// Author(s): ////
//// - Michael Unneback, unneback@opencores.org ////
//// ORSoC AB ////
//// ////
//////////////////////////////////////////////////////////////////////
//// ////
//// Copyright (C) 2009 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 ////
//// ////
//////////////////////////////////////////////////////////////////////
// binary counter
module vl_cnt_bin_ce_rew_l1 ( cke, rew, level1, rst, clk);
parameter length = 4;
input cke;
input rew;
output reg level1;
input rst;
input clk;
parameter clear_value = 0;
parameter set_value = 1;
parameter wrap_value = 1;
parameter level1_value = 15;
wire clear;
assign clear = 1'b0;
reg [length:1] qi;
wire [length:1] q_next, q_next_fw, q_next_rew;
assign q_next_fw = qi + {{length-1{1'b0}},1'b1};
assign q_next_rew = qi - {{length-1{1'b0}},1'b1};
assign q_next = rew ? q_next_rew : q_next_fw;
always @ (posedge clk or posedge rst)
if (rst)
qi <= {length{1'b0}};
else
if (cke)
qi <= q_next;
always @ (posedge clk or posedge rst)
if (rst)
level1 <= 1'b0;
else
if (cke)
if (clear)
level1 <= 1'b0;
else if (q_next == level1_value)
level1 <= 1'b1;
else if (qi == level1_value & rew)
level1 <= 1'b0;
endmodule
//////////////////////////////////////////////////////////////////////
//// ////
//// Versatile counter ////
//// ////
//// Description ////
//// Versatile counter, a reconfigurable binary, gray or LFSR ////
//// counter ////
//// ////
//// To Do: ////
//// - add LFSR with more taps ////
//// ////
//// Author(s): ////
//// - Michael Unneback, unneback@opencores.org ////
//// ORSoC AB ////
//// ////
//////////////////////////////////////////////////////////////////////
//// ////
//// Copyright (C) 2009 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 ////
//// ////
//////////////////////////////////////////////////////////////////////
// binary counter
module vl_cnt_bin_ce_rew_zq_l1 ( cke, rew, zq, level1, rst, clk);
parameter length = 4;
input cke;
input rew;
output reg zq;
output reg level1;
input rst;
694,8 → 1116,7
//// ////
//////////////////////////////////////////////////////////////////////
// binary counter
module vl_cnt_bin_ce_rew_q_zq_l1 (
cke, rew, q, zq, level1, rst, clk);
module vl_cnt_bin_ce_rew_q_zq_l1 ( cke, rew, q, zq, level1, rst, clk);
parameter length = 4;
input cke;
input rew;
781,12 → 1202,868
//// from http://www.opencores.org/lgpl.shtml ////
//// ////
//////////////////////////////////////////////////////////////////////
// LFSR counter
module vl_cnt_lfsr_zq ( zq, rst, clk);
parameter length = 4;
output reg zq;
input rst;
input clk;
parameter clear_value = 0;
parameter set_value = 1;
parameter wrap_value = 8;
parameter level1_value = 15;
reg [length:1] qi;
reg lfsr_fb;
wire [length:1] q_next;
reg [32:1] polynom;
integer i;
always @ (qi)
begin
case (length)
2: polynom = 32'b11; // 0x3
3: polynom = 32'b110; // 0x6
4: polynom = 32'b1100; // 0xC
5: polynom = 32'b10100; // 0x14
6: polynom = 32'b110000; // 0x30
7: polynom = 32'b1100000; // 0x60
8: polynom = 32'b10111000; // 0xb8
9: polynom = 32'b100010000; // 0x110
10: polynom = 32'b1001000000; // 0x240
11: polynom = 32'b10100000000; // 0x500
12: polynom = 32'b100000101001; // 0x829
13: polynom = 32'b1000000001100; // 0x100C
14: polynom = 32'b10000000010101; // 0x2015
15: polynom = 32'b110000000000000; // 0x6000
16: polynom = 32'b1101000000001000; // 0xD008
17: polynom = 32'b10010000000000000; // 0x12000
18: polynom = 32'b100000010000000000; // 0x20400
19: polynom = 32'b1000000000000100011; // 0x40023
20: polynom = 32'b10010000000000000000; // 0x90000
21: polynom = 32'b101000000000000000000; // 0x140000
22: polynom = 32'b1100000000000000000000; // 0x300000
23: polynom = 32'b10000100000000000000000; // 0x420000
24: polynom = 32'b111000010000000000000000; // 0xE10000
25: polynom = 32'b1001000000000000000000000; // 0x1200000
26: polynom = 32'b10000000000000000000100011; // 0x2000023
27: polynom = 32'b100000000000000000000010011; // 0x4000013
28: polynom = 32'b1100100000000000000000000000; // 0xC800000
29: polynom = 32'b10100000000000000000000000000; // 0x14000000
30: polynom = 32'b100000000000000000000000101001; // 0x20000029
31: polynom = 32'b1001000000000000000000000000000; // 0x48000000
32: polynom = 32'b10000000001000000000000000000011; // 0x80200003
default: polynom = 32'b0;
endcase
lfsr_fb = qi[length];
for (i=length-1; i>=1; i=i-1) begin
if (polynom[i])
lfsr_fb = lfsr_fb ~^ qi[i];
end
end
assign q_next = (qi == wrap_value) ? {length{1'b0}} :{qi[length-1:1],lfsr_fb};
always @ (posedge clk or posedge rst)
if (rst)
qi <= {length{1'b0}};
else
qi <= q_next;
always @ (posedge clk or posedge rst)
if (rst)
zq <= 1'b1;
else
zq <= q_next == {length{1'b0}};
endmodule
//////////////////////////////////////////////////////////////////////
//// ////
//// Versatile counter ////
//// ////
//// Description ////
//// Versatile counter, a reconfigurable binary, gray or LFSR ////
//// counter ////
//// ////
//// To Do: ////
//// - add LFSR with more taps ////
//// ////
//// Author(s): ////
//// - Michael Unneback, unneback@opencores.org ////
//// ORSoC AB ////
//// ////
//////////////////////////////////////////////////////////////////////
//// ////
//// Copyright (C) 2009 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 ////
//// ////
//////////////////////////////////////////////////////////////////////
// LFSR counter
module vl_cnt_lfsr_ce_zq ( cke, zq, rst, clk);
parameter length = 4;
input cke;
output reg zq;
input rst;
input clk;
parameter clear_value = 0;
parameter set_value = 1;
parameter wrap_value = 8;
parameter level1_value = 15;
reg [length:1] qi;
reg lfsr_fb;
wire [length:1] q_next;
reg [32:1] polynom;
integer i;
always @ (qi)
begin
case (length)
2: polynom = 32'b11; // 0x3
3: polynom = 32'b110; // 0x6
4: polynom = 32'b1100; // 0xC
5: polynom = 32'b10100; // 0x14
6: polynom = 32'b110000; // 0x30
7: polynom = 32'b1100000; // 0x60
8: polynom = 32'b10111000; // 0xb8
9: polynom = 32'b100010000; // 0x110
10: polynom = 32'b1001000000; // 0x240
11: polynom = 32'b10100000000; // 0x500
12: polynom = 32'b100000101001; // 0x829
13: polynom = 32'b1000000001100; // 0x100C
14: polynom = 32'b10000000010101; // 0x2015
15: polynom = 32'b110000000000000; // 0x6000
16: polynom = 32'b1101000000001000; // 0xD008
17: polynom = 32'b10010000000000000; // 0x12000
18: polynom = 32'b100000010000000000; // 0x20400
19: polynom = 32'b1000000000000100011; // 0x40023
20: polynom = 32'b10010000000000000000; // 0x90000
21: polynom = 32'b101000000000000000000; // 0x140000
22: polynom = 32'b1100000000000000000000; // 0x300000
23: polynom = 32'b10000100000000000000000; // 0x420000
24: polynom = 32'b111000010000000000000000; // 0xE10000
25: polynom = 32'b1001000000000000000000000; // 0x1200000
26: polynom = 32'b10000000000000000000100011; // 0x2000023
27: polynom = 32'b100000000000000000000010011; // 0x4000013
28: polynom = 32'b1100100000000000000000000000; // 0xC800000
29: polynom = 32'b10100000000000000000000000000; // 0x14000000
30: polynom = 32'b100000000000000000000000101001; // 0x20000029
31: polynom = 32'b1001000000000000000000000000000; // 0x48000000
32: polynom = 32'b10000000001000000000000000000011; // 0x80200003
default: polynom = 32'b0;
endcase
lfsr_fb = qi[length];
for (i=length-1; i>=1; i=i-1) begin
if (polynom[i])
lfsr_fb = lfsr_fb ~^ qi[i];
end
end
assign q_next = (qi == wrap_value) ? {length{1'b0}} :{qi[length-1:1],lfsr_fb};
always @ (posedge clk or posedge rst)
if (rst)
qi <= {length{1'b0}};
else
if (cke)
qi <= q_next;
always @ (posedge clk or posedge rst)
if (rst)
zq <= 1'b1;
else
if (cke)
zq <= q_next == {length{1'b0}};
endmodule
//////////////////////////////////////////////////////////////////////
//// ////
//// Versatile counter ////
//// ////
//// Description ////
//// Versatile counter, a reconfigurable binary, gray or LFSR ////
//// counter ////
//// ////
//// To Do: ////
//// - add LFSR with more taps ////
//// ////
//// Author(s): ////
//// - Michael Unneback, unneback@opencores.org ////
//// ORSoC AB ////
//// ////
//////////////////////////////////////////////////////////////////////
//// ////
//// Copyright (C) 2009 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 ////
//// ////
//////////////////////////////////////////////////////////////////////
// LFSR counter
module vl_cnt_lfsr_ce_q ( cke, q, rst, clk);
parameter length = 4;
input cke;
output [length:1] q;
input rst;
input clk;
parameter clear_value = 0;
parameter set_value = 1;
parameter wrap_value = 8;
parameter level1_value = 15;
reg [length:1] qi;
reg lfsr_fb;
wire [length:1] q_next;
reg [32:1] polynom;
integer i;
always @ (qi)
begin
case (length)
2: polynom = 32'b11; // 0x3
3: polynom = 32'b110; // 0x6
4: polynom = 32'b1100; // 0xC
5: polynom = 32'b10100; // 0x14
6: polynom = 32'b110000; // 0x30
7: polynom = 32'b1100000; // 0x60
8: polynom = 32'b10111000; // 0xb8
9: polynom = 32'b100010000; // 0x110
10: polynom = 32'b1001000000; // 0x240
11: polynom = 32'b10100000000; // 0x500
12: polynom = 32'b100000101001; // 0x829
13: polynom = 32'b1000000001100; // 0x100C
14: polynom = 32'b10000000010101; // 0x2015
15: polynom = 32'b110000000000000; // 0x6000
16: polynom = 32'b1101000000001000; // 0xD008
17: polynom = 32'b10010000000000000; // 0x12000
18: polynom = 32'b100000010000000000; // 0x20400
19: polynom = 32'b1000000000000100011; // 0x40023
20: polynom = 32'b10010000000000000000; // 0x90000
21: polynom = 32'b101000000000000000000; // 0x140000
22: polynom = 32'b1100000000000000000000; // 0x300000
23: polynom = 32'b10000100000000000000000; // 0x420000
24: polynom = 32'b111000010000000000000000; // 0xE10000
25: polynom = 32'b1001000000000000000000000; // 0x1200000
26: polynom = 32'b10000000000000000000100011; // 0x2000023
27: polynom = 32'b100000000000000000000010011; // 0x4000013
28: polynom = 32'b1100100000000000000000000000; // 0xC800000
29: polynom = 32'b10100000000000000000000000000; // 0x14000000
30: polynom = 32'b100000000000000000000000101001; // 0x20000029
31: polynom = 32'b1001000000000000000000000000000; // 0x48000000
32: polynom = 32'b10000000001000000000000000000011; // 0x80200003
default: polynom = 32'b0;
endcase
lfsr_fb = qi[length];
for (i=length-1; i>=1; i=i-1) begin
if (polynom[i])
lfsr_fb = lfsr_fb ~^ qi[i];
end
end
assign q_next = (qi == wrap_value) ? {length{1'b0}} :{qi[length-1:1],lfsr_fb};
always @ (posedge clk or posedge rst)
if (rst)
qi <= {length{1'b0}};
else
if (cke)
qi <= q_next;
assign q = qi;
endmodule
//////////////////////////////////////////////////////////////////////
//// ////
//// Versatile counter ////
//// ////
//// Description ////
//// Versatile counter, a reconfigurable binary, gray or LFSR ////
//// counter ////
//// ////
//// To Do: ////
//// - add LFSR with more taps ////
//// ////
//// Author(s): ////
//// - Michael Unneback, unneback@opencores.org ////
//// ORSoC AB ////
//// ////
//////////////////////////////////////////////////////////////////////
//// ////
//// Copyright (C) 2009 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 ////
//// ////
//////////////////////////////////////////////////////////////////////
// LFSR counter
module vl_cnt_lfsr_ce_clear_q ( clear, cke, q, rst, clk);
parameter length = 4;
input clear;
input cke;
output [length:1] q;
input rst;
input clk;
parameter clear_value = 0;
parameter set_value = 1;
parameter wrap_value = 8;
parameter level1_value = 15;
reg [length:1] qi;
reg lfsr_fb;
wire [length:1] q_next;
reg [32:1] polynom;
integer i;
always @ (qi)
begin
case (length)
2: polynom = 32'b11; // 0x3
3: polynom = 32'b110; // 0x6
4: polynom = 32'b1100; // 0xC
5: polynom = 32'b10100; // 0x14
6: polynom = 32'b110000; // 0x30
7: polynom = 32'b1100000; // 0x60
8: polynom = 32'b10111000; // 0xb8
9: polynom = 32'b100010000; // 0x110
10: polynom = 32'b1001000000; // 0x240
11: polynom = 32'b10100000000; // 0x500
12: polynom = 32'b100000101001; // 0x829
13: polynom = 32'b1000000001100; // 0x100C
14: polynom = 32'b10000000010101; // 0x2015
15: polynom = 32'b110000000000000; // 0x6000
16: polynom = 32'b1101000000001000; // 0xD008
17: polynom = 32'b10010000000000000; // 0x12000
18: polynom = 32'b100000010000000000; // 0x20400
19: polynom = 32'b1000000000000100011; // 0x40023
20: polynom = 32'b10010000000000000000; // 0x90000
21: polynom = 32'b101000000000000000000; // 0x140000
22: polynom = 32'b1100000000000000000000; // 0x300000
23: polynom = 32'b10000100000000000000000; // 0x420000
24: polynom = 32'b111000010000000000000000; // 0xE10000
25: polynom = 32'b1001000000000000000000000; // 0x1200000
26: polynom = 32'b10000000000000000000100011; // 0x2000023
27: polynom = 32'b100000000000000000000010011; // 0x4000013
28: polynom = 32'b1100100000000000000000000000; // 0xC800000
29: polynom = 32'b10100000000000000000000000000; // 0x14000000
30: polynom = 32'b100000000000000000000000101001; // 0x20000029
31: polynom = 32'b1001000000000000000000000000000; // 0x48000000
32: polynom = 32'b10000000001000000000000000000011; // 0x80200003
default: polynom = 32'b0;
endcase
lfsr_fb = qi[length];
for (i=length-1; i>=1; i=i-1) begin
if (polynom[i])
lfsr_fb = lfsr_fb ~^ qi[i];
end
end
assign q_next = clear ? {length{1'b0}} :(qi == wrap_value) ? {length{1'b0}} :{qi[length-1:1],lfsr_fb};
always @ (posedge clk or posedge rst)
if (rst)
qi <= {length{1'b0}};
else
if (cke)
qi <= q_next;
assign q = qi;
endmodule
//////////////////////////////////////////////////////////////////////
//// ////
//// Versatile counter ////
//// ////
//// Description ////
//// Versatile counter, a reconfigurable binary, gray or LFSR ////
//// counter ////
//// ////
//// To Do: ////
//// - add LFSR with more taps ////
//// ////
//// Author(s): ////
//// - Michael Unneback, unneback@opencores.org ////
//// ORSoC AB ////
//// ////
//////////////////////////////////////////////////////////////////////
//// ////
//// Copyright (C) 2009 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 ////
//// ////
//////////////////////////////////////////////////////////////////////
// LFSR counter
module vl_cnt_lfsr_ce_q_zq ( cke, q, zq, rst, clk);
parameter length = 4;
input cke;
output [length:1] q;
output reg zq;
input rst;
input clk;
parameter clear_value = 0;
parameter set_value = 1;
parameter wrap_value = 8;
parameter level1_value = 15;
reg [length:1] qi;
reg lfsr_fb;
wire [length:1] q_next;
reg [32:1] polynom;
integer i;
always @ (qi)
begin
case (length)
2: polynom = 32'b11; // 0x3
3: polynom = 32'b110; // 0x6
4: polynom = 32'b1100; // 0xC
5: polynom = 32'b10100; // 0x14
6: polynom = 32'b110000; // 0x30
7: polynom = 32'b1100000; // 0x60
8: polynom = 32'b10111000; // 0xb8
9: polynom = 32'b100010000; // 0x110
10: polynom = 32'b1001000000; // 0x240
11: polynom = 32'b10100000000; // 0x500
12: polynom = 32'b100000101001; // 0x829
13: polynom = 32'b1000000001100; // 0x100C
14: polynom = 32'b10000000010101; // 0x2015
15: polynom = 32'b110000000000000; // 0x6000
16: polynom = 32'b1101000000001000; // 0xD008
17: polynom = 32'b10010000000000000; // 0x12000
18: polynom = 32'b100000010000000000; // 0x20400
19: polynom = 32'b1000000000000100011; // 0x40023
20: polynom = 32'b10010000000000000000; // 0x90000
21: polynom = 32'b101000000000000000000; // 0x140000
22: polynom = 32'b1100000000000000000000; // 0x300000
23: polynom = 32'b10000100000000000000000; // 0x420000
24: polynom = 32'b111000010000000000000000; // 0xE10000
25: polynom = 32'b1001000000000000000000000; // 0x1200000
26: polynom = 32'b10000000000000000000100011; // 0x2000023
27: polynom = 32'b100000000000000000000010011; // 0x4000013
28: polynom = 32'b1100100000000000000000000000; // 0xC800000
29: polynom = 32'b10100000000000000000000000000; // 0x14000000
30: polynom = 32'b100000000000000000000000101001; // 0x20000029
31: polynom = 32'b1001000000000000000000000000000; // 0x48000000
32: polynom = 32'b10000000001000000000000000000011; // 0x80200003
default: polynom = 32'b0;
endcase
lfsr_fb = qi[length];
for (i=length-1; i>=1; i=i-1) begin
if (polynom[i])
lfsr_fb = lfsr_fb ~^ qi[i];
end
end
assign q_next = (qi == wrap_value) ? {length{1'b0}} :{qi[length-1:1],lfsr_fb};
always @ (posedge clk or posedge rst)
if (rst)
qi <= {length{1'b0}};
else
if (cke)
qi <= q_next;
assign q = qi;
always @ (posedge clk or posedge rst)
if (rst)
zq <= 1'b1;
else
if (cke)
zq <= q_next == {length{1'b0}};
endmodule
//////////////////////////////////////////////////////////////////////
//// ////
//// Versatile counter ////
//// ////
//// Description ////
//// Versatile counter, a reconfigurable binary, gray or LFSR ////
//// counter ////
//// ////
//// To Do: ////
//// - add LFSR with more taps ////
//// ////
//// Author(s): ////
//// - Michael Unneback, unneback@opencores.org ////
//// ORSoC AB ////
//// ////
//////////////////////////////////////////////////////////////////////
//// ////
//// Copyright (C) 2009 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 ////
//// ////
//////////////////////////////////////////////////////////////////////
// LFSR counter
module vl_cnt_lfsr_ce_rew_l1 ( cke, rew, level1, rst, clk);
parameter length = 4;
input cke;
input rew;
output reg level1;
input rst;
input clk;
parameter clear_value = 0;
parameter set_value = 1;
parameter wrap_value = 8;
parameter level1_value = 15;
wire clear;
assign clear = 1'b0;
reg [length:1] qi;
reg lfsr_fb, lfsr_fb_rew;
wire [length:1] q_next, q_next_fw, q_next_rew;
reg [32:1] polynom_rew;
integer j;
reg [32:1] polynom;
integer i;
always @ (qi)
begin
case (length)
2: polynom = 32'b11; // 0x3
3: polynom = 32'b110; // 0x6
4: polynom = 32'b1100; // 0xC
5: polynom = 32'b10100; // 0x14
6: polynom = 32'b110000; // 0x30
7: polynom = 32'b1100000; // 0x60
8: polynom = 32'b10111000; // 0xb8
9: polynom = 32'b100010000; // 0x110
10: polynom = 32'b1001000000; // 0x240
11: polynom = 32'b10100000000; // 0x500
12: polynom = 32'b100000101001; // 0x829
13: polynom = 32'b1000000001100; // 0x100C
14: polynom = 32'b10000000010101; // 0x2015
15: polynom = 32'b110000000000000; // 0x6000
16: polynom = 32'b1101000000001000; // 0xD008
17: polynom = 32'b10010000000000000; // 0x12000
18: polynom = 32'b100000010000000000; // 0x20400
19: polynom = 32'b1000000000000100011; // 0x40023
20: polynom = 32'b10010000000000000000; // 0x90000
21: polynom = 32'b101000000000000000000; // 0x140000
22: polynom = 32'b1100000000000000000000; // 0x300000
23: polynom = 32'b10000100000000000000000; // 0x420000
24: polynom = 32'b111000010000000000000000; // 0xE10000
25: polynom = 32'b1001000000000000000000000; // 0x1200000
26: polynom = 32'b10000000000000000000100011; // 0x2000023
27: polynom = 32'b100000000000000000000010011; // 0x4000013
28: polynom = 32'b1100100000000000000000000000; // 0xC800000
29: polynom = 32'b10100000000000000000000000000; // 0x14000000
30: polynom = 32'b100000000000000000000000101001; // 0x20000029
31: polynom = 32'b1001000000000000000000000000000; // 0x48000000
32: polynom = 32'b10000000001000000000000000000011; // 0x80200003
default: polynom = 32'b0;
endcase
lfsr_fb = qi[length];
for (i=length-1; i>=1; i=i-1) begin
if (polynom[i])
lfsr_fb = lfsr_fb ~^ qi[i];
end
end
assign q_next_fw = (qi == wrap_value) ? {length{1'b0}} :{qi[length-1:1],lfsr_fb};
always @ (qi)
begin
case (length)
2: polynom_rew = 32'b11;
3: polynom_rew = 32'b110;
4: polynom_rew = 32'b1100;
5: polynom_rew = 32'b10100;
6: polynom_rew = 32'b110000;
7: polynom_rew = 32'b1100000;
8: polynom_rew = 32'b10111000;
9: polynom_rew = 32'b100010000;
10: polynom_rew = 32'b1001000000;
11: polynom_rew = 32'b10100000000;
12: polynom_rew = 32'b100000101001;
13: polynom_rew = 32'b1000000001100;
14: polynom_rew = 32'b10000000010101;
15: polynom_rew = 32'b110000000000000;
16: polynom_rew = 32'b1101000000001000;
17: polynom_rew = 32'b10010000000000000;
18: polynom_rew = 32'b100000010000000000;
19: polynom_rew = 32'b1000000000000100011;
20: polynom_rew = 32'b10000010000000000000;
21: polynom_rew = 32'b101000000000000000000;
22: polynom_rew = 32'b1100000000000000000000;
23: polynom_rew = 32'b10000100000000000000000;
24: polynom_rew = 32'b111000010000000000000000;
25: polynom_rew = 32'b1001000000000000000000000;
26: polynom_rew = 32'b10000000000000000000100011;
27: polynom_rew = 32'b100000000000000000000010011;
28: polynom_rew = 32'b1100100000000000000000000000;
29: polynom_rew = 32'b10100000000000000000000000000;
30: polynom_rew = 32'b100000000000000000000000101001;
31: polynom_rew = 32'b1001000000000000000000000000000;
32: polynom_rew = 32'b10000000001000000000000000000011;
default: polynom_rew = 32'b0;
endcase
// rotate left
polynom_rew[length:1] = { polynom_rew[length-2:1],polynom_rew[length] };
lfsr_fb_rew = qi[length];
for (i=length-1; i>=1; i=i-1) begin
if (polynom_rew[i])
lfsr_fb_rew = lfsr_fb_rew ~^ qi[i];
end
end
assign q_next_rew = (qi == wrap_value) ? {length{1'b0}} :{lfsr_fb_rew,qi[length:2]};
assign q_next = rew ? q_next_rew : q_next_fw;
always @ (posedge clk or posedge rst)
if (rst)
qi <= {length{1'b0}};
else
if (cke)
qi <= q_next;
always @ (posedge clk or posedge rst)
if (rst)
level1 <= 1'b0;
else
if (cke)
if (clear)
level1 <= 1'b0;
else if (q_next == level1_value)
level1 <= 1'b1;
else if (qi == level1_value & rew)
level1 <= 1'b0;
endmodule
//////////////////////////////////////////////////////////////////////
//// ////
//// Versatile counter ////
//// ////
//// Description ////
//// Versatile counter, a reconfigurable binary, gray or LFSR ////
//// counter ////
//// ////
//// To Do: ////
//// - add LFSR with more taps ////
//// ////
//// Author(s): ////
//// - Michael Unneback, unneback@opencores.org ////
//// ORSoC AB ////
//// ////
//////////////////////////////////////////////////////////////////////
//// ////
//// Copyright (C) 2009 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 ////
//// ////
//////////////////////////////////////////////////////////////////////
// GRAY counter
module vl_cnt_gray_ce_bin (
cke, q, q_bin, rst, clk);
module vl_cnt_gray ( q, rst, clk);
parameter length = 4;
output reg [length:1] q;
input rst;
input clk;
parameter clear_value = 0;
parameter set_value = 1;
parameter wrap_value = 8;
parameter level1_value = 15;
reg [length:1] qi;
wire [length:1] q_next;
assign q_next = qi + {{length-1{1'b0}},1'b1};
always @ (posedge clk or posedge rst)
if (rst)
qi <= {length{1'b0}};
else
qi <= q_next;
always @ (posedge clk or posedge rst)
if (rst)
q <= {length{1'b0}};
else
q <= (q_next>>1) ^ q_next;
endmodule
//////////////////////////////////////////////////////////////////////
//// ////
//// Versatile counter ////
//// ////
//// Description ////
//// Versatile counter, a reconfigurable binary, gray or LFSR ////
//// counter ////
//// ////
//// To Do: ////
//// - add LFSR with more taps ////
//// ////
//// Author(s): ////
//// - Michael Unneback, unneback@opencores.org ////
//// ORSoC AB ////
//// ////
//////////////////////////////////////////////////////////////////////
//// ////
//// Copyright (C) 2009 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 ////
//// ////
//////////////////////////////////////////////////////////////////////
// GRAY counter
module vl_cnt_gray_ce ( cke, q, rst, clk);
parameter length = 4;
input cke;
output reg [length:1] q;
input rst;
input clk;
parameter clear_value = 0;
parameter set_value = 1;
parameter wrap_value = 8;
parameter level1_value = 15;
reg [length:1] qi;
wire [length:1] q_next;
assign q_next = qi + {{length-1{1'b0}},1'b1};
always @ (posedge clk or posedge rst)
if (rst)
qi <= {length{1'b0}};
else
if (cke)
qi <= q_next;
always @ (posedge clk or posedge rst)
if (rst)
q <= {length{1'b0}};
else
if (cke)
q <= (q_next>>1) ^ q_next;
endmodule
//////////////////////////////////////////////////////////////////////
//// ////
//// Versatile counter ////
//// ////
//// Description ////
//// Versatile counter, a reconfigurable binary, gray or LFSR ////
//// counter ////
//// ////
//// To Do: ////
//// - add LFSR with more taps ////
//// ////
//// Author(s): ////
//// - Michael Unneback, unneback@opencores.org ////
//// ORSoC AB ////
//// ////
//////////////////////////////////////////////////////////////////////
//// ////
//// Copyright (C) 2009 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 ////
//// ////
//////////////////////////////////////////////////////////////////////
// GRAY counter
module vl_cnt_gray_ce_bin ( cke, q, q_bin, rst, clk);
parameter length = 4;
input cke;
output reg [length:1] q;
output [length:1] q_bin;
input rst;
input clk;
/wb.v
40,12 → 40,9
//// ////
//////////////////////////////////////////////////////////////////////
 
`ifdef WB3WB3_BRIDGE
// async wb3 - wb3 bridge
`timescale 1ns/1ns
`define MODULE wb3wb3_bridge
module `BASE`MODULE (
`undef MODULE
module vl_wb3wb3_bridge (
// wishbone slave side
wbs_dat_i, wbs_adr_i, wbs_sel_i, wbs_bte_i, wbs_cti_i, wbs_we_i, wbs_cyc_i, wbs_stb_i, wbs_dat_o, wbs_ack_o, wbs_clk, wbs_rst,
// wishbone master side
122,9 → 119,7
else if (wbs_eoc_alert & (a_rd | a_wr))
wbs_eoc <= 1'b1;
 
`define MODULE cnt_shreg_ce_clear
`BASE`MODULE # ( .length(16))
`undef MODULE
vl_cnt_shreg_ce_clear # ( .length(16))
cnt0 (
.cke(wbs_ack_o),
.clear(wbs_eoc),
210,18 → 205,12
1'b0;
assign b_rd = b_rd_adr | b_rd_data;
 
`define MODULE dff
`BASE`MODULE dff1 ( .d(b_rd_data), .q(b_rd_data_reg), .clk(wbm_clk), .rst(wbm_rst));
`undef MODULE
`define MODULE dff_ce
`BASE`MODULE # ( .width(36)) dff2 ( .d(b_q), .ce(b_rd_data_reg), .q(temp), .clk(wbm_clk), .rst(wbm_rst));
`undef MODULE
vl_dff dff1 ( .d(b_rd_data), .q(b_rd_data_reg), .clk(wbm_clk), .rst(wbm_rst));
vl_dff_ce # ( .width(36)) dff2 ( .d(b_q), .ce(b_rd_data_reg), .q(temp), .clk(wbm_clk), .rst(wbm_rst));
 
assign {wbm_dat_o,wbm_sel_o} = (b_rd_data_reg) ? b_q : temp;
 
`define MODULE cnt_shreg_ce_clear
vl_cnt_shreg_ce_clear # ( .length(16))
`undef MODULE
cnt1 (
.cke(wbm_ack_i),
.clear(wbm_eoc),
243,9 → 232,7
end
 
//async_fifo_dw_simplex_top
`define MODULE fifo_2r2w_async_simplex
`BASE`MODULE
`undef MODULE
vl_fifo_2r2w_async_simplex
# ( .data_width(36), .addr_width(addr_width))
fifo (
// a side
269,15 → 256,8
);
endmodule
`undef WE
`undef BTE
`undef CTI
`endif
 
`ifdef WB3_ARBITER_TYPE1
`define MODULE wb3_arbiter_type1
module vl_wb3_arbiter_type1 (
`undef MODULE
wbm_dat_o, wbm_adr_o, wbm_sel_o, wbm_cti_o, wbm_bte_o, wbm_we_o, wbm_stb_o, wbm_cyc_o,
wbm_dat_i, wbm_ack_i, wbm_err_i, wbm_rty_i,
wbs_dat_i, wbs_adr_i, wbs_sel_i, wbs_cti_i, wbs_bte_i, wbs_we_i, wbs_stb_i, wbs_cyc_i,
364,15 → 344,13
 
assign sel = select | state;
 
`define MODULE mux_andor
`BASE`MODULE # ( .nr_of_ports(nr_of_ports), .width(32)) mux0 ( .a(wbm_dat_o), .sel(sel), .dout(wbs_dat_i));
`BASE`MODULE # ( .nr_of_ports(nr_of_ports), .width(adr_size-adr_lo)) mux1 ( .a(wbm_adr_o), .sel(sel), .dout(wbs_adr_i));
`BASE`MODULE # ( .nr_of_ports(nr_of_ports), .width(sel_size)) mux2 ( .a(wbm_sel_o), .sel(sel), .dout(wbs_sel_i));
`BASE`MODULE # ( .nr_of_ports(nr_of_ports), .width(3)) mux3 ( .a(wbm_cti_o), .sel(sel), .dout(wbs_cti_i));
`BASE`MODULE # ( .nr_of_ports(nr_of_ports), .width(2)) mux4 ( .a(wbm_bte_o), .sel(sel), .dout(wbs_bte_i));
`BASE`MODULE # ( .nr_of_ports(nr_of_ports), .width(1)) mux5 ( .a(wbm_we_o), .sel(sel), .dout(wbs_we_i));
`BASE`MODULE # ( .nr_of_ports(nr_of_ports), .width(1)) mux6 ( .a(wbm_stb_o), .sel(sel), .dout(wbs_stb_i));
`undef MODULE
vl_mux_andor # ( .nr_of_ports(nr_of_ports), .width(32)) mux0 ( .a(wbm_dat_o), .sel(sel), .dout(wbs_dat_i));
vl_mux_andor # ( .nr_of_ports(nr_of_ports), .width(adr_size-adr_lo)) mux1 ( .a(wbm_adr_o), .sel(sel), .dout(wbs_adr_i));
vl_mux_andor # ( .nr_of_ports(nr_of_ports), .width(sel_size)) mux2 ( .a(wbm_sel_o), .sel(sel), .dout(wbs_sel_i));
vl_mux_andor # ( .nr_of_ports(nr_of_ports), .width(3)) mux3 ( .a(wbm_cti_o), .sel(sel), .dout(wbs_cti_i));
vl_mux_andor # ( .nr_of_ports(nr_of_ports), .width(2)) mux4 ( .a(wbm_bte_o), .sel(sel), .dout(wbs_bte_i));
vl_mux_andor # ( .nr_of_ports(nr_of_ports), .width(1)) mux5 ( .a(wbm_we_o), .sel(sel), .dout(wbs_we_i));
vl_mux_andor # ( .nr_of_ports(nr_of_ports), .width(1)) mux6 ( .a(wbm_stb_o), .sel(sel), .dout(wbs_stb_i));
assign wbs_cyc_i = |sel;
assign wbm_dat_i = {nr_of_ports{wbs_dat_o}};
381,13 → 359,9
assign wbm_rty_i = {nr_of_ports{wbs_rty_o}} & sel;
 
endmodule
`endif
 
`ifdef WB_BOOT_ROM
// WB ROM
`define MODULE wb_boot_rom
module `BASE`MODULE (
`undef MODULE
module vl_wb_boot_rom (
wb_adr_i, wb_stb_i, wb_cyc_i,
wb_dat_o, wb_ack_o, hit_o, wb_clk, wb_rst);
 
448,12 → 422,8
assign wb_ack_o = wb_ack;
 
endmodule
`endif
 
`ifdef WB_DPRAM
`define MODULE wb_dpram
module `BASE`MODULE (
`undef MODULE
module vl_wb_dpram (
// wishbone slave side a
wbsa_dat_i, wbsa_adr_i, wbsa_we_i, wbsa_cyc_i, wbsa_stb_i, wbsa_dat_o, wbsa_ack_o,
wbsa_clk, wbsa_rst,
483,9 → 453,7
 
wire wbsa_dat_tmp, wbsb_dat_tmp;
 
`define MODULE dpram_2r2w
`BASE`MODULE # (
`undef MODULE
vl_dpram_2r2w # (
.data_width(data_width), .addr_width(addr_width) )
dpram0(
.d_a(wbsa_dat_i),
513,10 → 481,7
assign wbsb_dat_o = wbsb_dat_tmp;
endgenerate
 
`define MODULE spr
`BASE`MODULE ack_a( .sp(wbsa_cyc_i & wbsa_stb_i & !wbsa_ack_o), .r(1'b1), .q(wbsa_ack_o), .clk(wbsa_clk), .rst(wbsa_rst));
`BASE`MODULE ack_b( .sp(wbsb_cyc_i & wbsb_stb_i & !wbsb_ack_o), .r(1'b1), .q(wbsb_ack_o), .clk(wbsb_clk), .rst(wbsb_rst));
`undef MODULE
vl_spr ack_a( .sp(wbsa_cyc_i & wbsa_stb_i & !wbsa_ack_o), .r(1'b1), .q(wbsa_ack_o), .clk(wbsa_clk), .rst(wbsa_rst));
vl_spr ack_b( .sp(wbsb_cyc_i & wbsb_stb_i & !wbsb_ack_o), .r(1'b1), .q(wbsb_ack_o), .clk(wbsb_clk), .rst(wbsb_rst));
 
endmodule
`endif
/versatile_library_altera.v
179,7 → 179,7
`endif
genvar i;
generate for (i=0;i<number_of_clk;i=i+1) begin: clock
vl_sync_rst rst_i0 ( .rst_n_i(rst_n_i | lock), .rst_o(rst_o[i]), .clk(clk_o[i]));
vl_sync_rst rst_i0 ( .rst_n_i(rst_n_i | lock), .rst_o(rst_o[i]), .clk(clk_o[i]));
end
endgenerate
endmodule
652,9 → 652,131
//// ////
//////////////////////////////////////////////////////////////////////
// binary counter
module vl_cnt_bin_ce (
cke, q, rst, clk);
module vl_cnt_bin ( q, rst, clk);
parameter length = 4;
output [length:1] q;
input rst;
input clk;
parameter clear_value = 0;
parameter set_value = 1;
parameter wrap_value = 0;
parameter level1_value = 15;
reg [length:1] qi;
wire [length:1] q_next;
assign q_next = qi + {{length-1{1'b0}},1'b1};
always @ (posedge clk or posedge rst)
if (rst)
qi <= {length{1'b0}};
else
qi <= q_next;
assign q = qi;
endmodule
//////////////////////////////////////////////////////////////////////
//// ////
//// Versatile counter ////
//// ////
//// Description ////
//// Versatile counter, a reconfigurable binary, gray or LFSR ////
//// counter ////
//// ////
//// To Do: ////
//// - add LFSR with more taps ////
//// ////
//// Author(s): ////
//// - Michael Unneback, unneback@opencores.org ////
//// ORSoC AB ////
//// ////
//////////////////////////////////////////////////////////////////////
//// ////
//// Copyright (C) 2009 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 ////
//// ////
//////////////////////////////////////////////////////////////////////
// binary counter
module vl_cnt_bin_clear ( clear, q, rst, clk);
parameter length = 4;
input clear;
output [length:1] q;
input rst;
input clk;
parameter clear_value = 0;
parameter set_value = 1;
parameter wrap_value = 0;
parameter level1_value = 15;
reg [length:1] qi;
wire [length:1] q_next;
assign q_next = clear ? {length{1'b0}} :qi + {{length-1{1'b0}},1'b1};
always @ (posedge clk or posedge rst)
if (rst)
qi <= {length{1'b0}};
else
qi <= q_next;
assign q = qi;
endmodule
//////////////////////////////////////////////////////////////////////
//// ////
//// Versatile counter ////
//// ////
//// Description ////
//// Versatile counter, a reconfigurable binary, gray or LFSR ////
//// counter ////
//// ////
//// To Do: ////
//// - add LFSR with more taps ////
//// ////
//// Author(s): ////
//// - Michael Unneback, unneback@opencores.org ////
//// ORSoC AB ////
//// ////
//////////////////////////////////////////////////////////////////////
//// ////
//// Copyright (C) 2009 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 ////
//// ////
//////////////////////////////////////////////////////////////////////
// binary counter
module vl_cnt_bin_ce ( cke, q, rst, clk);
parameter length = 4;
input cke;
output [length:1] q;
input rst;
716,11 → 838,311
//// ////
//////////////////////////////////////////////////////////////////////
// binary counter
module vl_cnt_bin_ce_rew_zq_l1 (
cke, rew, zq, level1, rst, clk);
module vl_cnt_bin_ce_clear ( clear, cke, q, rst, clk);
parameter length = 4;
input clear;
input cke;
output [length:1] q;
input rst;
input clk;
parameter clear_value = 0;
parameter set_value = 1;
parameter wrap_value = 0;
parameter level1_value = 15;
reg [length:1] qi;
wire [length:1] q_next;
assign q_next = clear ? {length{1'b0}} :qi + {{length-1{1'b0}},1'b1};
always @ (posedge clk or posedge rst)
if (rst)
qi <= {length{1'b0}};
else
if (cke)
qi <= q_next;
assign q = qi;
endmodule
//////////////////////////////////////////////////////////////////////
//// ////
//// Versatile counter ////
//// ////
//// Description ////
//// Versatile counter, a reconfigurable binary, gray or LFSR ////
//// counter ////
//// ////
//// To Do: ////
//// - add LFSR with more taps ////
//// ////
//// Author(s): ////
//// - Michael Unneback, unneback@opencores.org ////
//// ORSoC AB ////
//// ////
//////////////////////////////////////////////////////////////////////
//// ////
//// Copyright (C) 2009 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 ////
//// ////
//////////////////////////////////////////////////////////////////////
// binary counter
module vl_cnt_bin_ce_clear_l1_l2 ( clear, cke, q, level1, level2, rst, clk);
parameter length = 4;
input clear;
input cke;
output [length:1] q;
output reg level1;
output reg level2;
input rst;
input clk;
parameter clear_value = 0;
parameter set_value = 1;
parameter wrap_value = 15;
parameter level1_value = 8;
parameter level2_value = 15;
wire rew;
assign rew = 1'b0;
reg [length:1] qi;
wire [length:1] q_next;
assign q_next = clear ? {length{1'b0}} :qi + {{length-1{1'b0}},1'b1};
always @ (posedge clk or posedge rst)
if (rst)
qi <= {length{1'b0}};
else
if (cke)
qi <= q_next;
assign q = qi;
always @ (posedge clk or posedge rst)
if (rst)
level1 <= 1'b0;
else
if (cke)
if (clear)
level1 <= 1'b0;
else if (q_next == level1_value)
level1 <= 1'b1;
else if (qi == level1_value & rew)
level1 <= 1'b0;
always @ (posedge clk or posedge rst)
if (rst)
level2 <= 1'b0;
else
if (cke)
if (clear)
level2 <= 1'b0;
else if (q_next == level2_value)
level2 <= 1'b1;
else if (qi == level2_value & rew)
level2 <= 1'b0;
endmodule
//////////////////////////////////////////////////////////////////////
//// ////
//// Versatile counter ////
//// ////
//// Description ////
//// Versatile counter, a reconfigurable binary, gray or LFSR ////
//// counter ////
//// ////
//// To Do: ////
//// - add LFSR with more taps ////
//// ////
//// Author(s): ////
//// - Michael Unneback, unneback@opencores.org ////
//// ORSoC AB ////
//// ////
//////////////////////////////////////////////////////////////////////
//// ////
//// Copyright (C) 2009 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 ////
//// ////
//////////////////////////////////////////////////////////////////////
// binary counter
module vl_cnt_bin_ce_clear_set_rew ( clear, set, cke, rew, q, rst, clk);
parameter length = 4;
input clear;
input set;
input cke;
input rew;
output [length:1] q;
input rst;
input clk;
parameter clear_value = 0;
parameter set_value = 1;
parameter wrap_value = 0;
parameter level1_value = 15;
reg [length:1] qi;
wire [length:1] q_next, q_next_fw, q_next_rew;
assign q_next_fw = clear ? {length{1'b0}} : set ? set_value :qi + {{length-1{1'b0}},1'b1};
assign q_next_rew = clear ? clear_value : set ? set_value :qi - {{length-1{1'b0}},1'b1};
assign q_next = rew ? q_next_rew : q_next_fw;
always @ (posedge clk or posedge rst)
if (rst)
qi <= {length{1'b0}};
else
if (cke)
qi <= q_next;
assign q = qi;
endmodule
//////////////////////////////////////////////////////////////////////
//// ////
//// Versatile counter ////
//// ////
//// Description ////
//// Versatile counter, a reconfigurable binary, gray or LFSR ////
//// counter ////
//// ////
//// To Do: ////
//// - add LFSR with more taps ////
//// ////
//// Author(s): ////
//// - Michael Unneback, unneback@opencores.org ////
//// ORSoC AB ////
//// ////
//////////////////////////////////////////////////////////////////////
//// ////
//// Copyright (C) 2009 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 ////
//// ////
//////////////////////////////////////////////////////////////////////
// binary counter
module vl_cnt_bin_ce_rew_l1 ( cke, rew, level1, rst, clk);
parameter length = 4;
input cke;
input rew;
output reg level1;
input rst;
input clk;
parameter clear_value = 0;
parameter set_value = 1;
parameter wrap_value = 1;
parameter level1_value = 15;
wire clear;
assign clear = 1'b0;
reg [length:1] qi;
wire [length:1] q_next, q_next_fw, q_next_rew;
assign q_next_fw = qi + {{length-1{1'b0}},1'b1};
assign q_next_rew = qi - {{length-1{1'b0}},1'b1};
assign q_next = rew ? q_next_rew : q_next_fw;
always @ (posedge clk or posedge rst)
if (rst)
qi <= {length{1'b0}};
else
if (cke)
qi <= q_next;
always @ (posedge clk or posedge rst)
if (rst)
level1 <= 1'b0;
else
if (cke)
if (clear)
level1 <= 1'b0;
else if (q_next == level1_value)
level1 <= 1'b1;
else if (qi == level1_value & rew)
level1 <= 1'b0;
endmodule
//////////////////////////////////////////////////////////////////////
//// ////
//// Versatile counter ////
//// ////
//// Description ////
//// Versatile counter, a reconfigurable binary, gray or LFSR ////
//// counter ////
//// ////
//// To Do: ////
//// - add LFSR with more taps ////
//// ////
//// Author(s): ////
//// - Michael Unneback, unneback@opencores.org ////
//// ORSoC AB ////
//// ////
//////////////////////////////////////////////////////////////////////
//// ////
//// Copyright (C) 2009 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 ////
//// ////
//////////////////////////////////////////////////////////////////////
// binary counter
module vl_cnt_bin_ce_rew_zq_l1 ( cke, rew, zq, level1, rst, clk);
parameter length = 4;
input cke;
input rew;
output reg zq;
output reg level1;
input rst;
802,8 → 1224,7
//// ////
//////////////////////////////////////////////////////////////////////
// binary counter
module vl_cnt_bin_ce_rew_q_zq_l1 (
cke, rew, q, zq, level1, rst, clk);
module vl_cnt_bin_ce_rew_q_zq_l1 ( cke, rew, q, zq, level1, rst, clk);
parameter length = 4;
input cke;
input rew;
889,12 → 1310,868
//// from http://www.opencores.org/lgpl.shtml ////
//// ////
//////////////////////////////////////////////////////////////////////
// LFSR counter
module vl_cnt_lfsr_zq ( zq, rst, clk);
parameter length = 4;
output reg zq;
input rst;
input clk;
parameter clear_value = 0;
parameter set_value = 1;
parameter wrap_value = 8;
parameter level1_value = 15;
reg [length:1] qi;
reg lfsr_fb;
wire [length:1] q_next;
reg [32:1] polynom;
integer i;
always @ (qi)
begin
case (length)
2: polynom = 32'b11; // 0x3
3: polynom = 32'b110; // 0x6
4: polynom = 32'b1100; // 0xC
5: polynom = 32'b10100; // 0x14
6: polynom = 32'b110000; // 0x30
7: polynom = 32'b1100000; // 0x60
8: polynom = 32'b10111000; // 0xb8
9: polynom = 32'b100010000; // 0x110
10: polynom = 32'b1001000000; // 0x240
11: polynom = 32'b10100000000; // 0x500
12: polynom = 32'b100000101001; // 0x829
13: polynom = 32'b1000000001100; // 0x100C
14: polynom = 32'b10000000010101; // 0x2015
15: polynom = 32'b110000000000000; // 0x6000
16: polynom = 32'b1101000000001000; // 0xD008
17: polynom = 32'b10010000000000000; // 0x12000
18: polynom = 32'b100000010000000000; // 0x20400
19: polynom = 32'b1000000000000100011; // 0x40023
20: polynom = 32'b10010000000000000000; // 0x90000
21: polynom = 32'b101000000000000000000; // 0x140000
22: polynom = 32'b1100000000000000000000; // 0x300000
23: polynom = 32'b10000100000000000000000; // 0x420000
24: polynom = 32'b111000010000000000000000; // 0xE10000
25: polynom = 32'b1001000000000000000000000; // 0x1200000
26: polynom = 32'b10000000000000000000100011; // 0x2000023
27: polynom = 32'b100000000000000000000010011; // 0x4000013
28: polynom = 32'b1100100000000000000000000000; // 0xC800000
29: polynom = 32'b10100000000000000000000000000; // 0x14000000
30: polynom = 32'b100000000000000000000000101001; // 0x20000029
31: polynom = 32'b1001000000000000000000000000000; // 0x48000000
32: polynom = 32'b10000000001000000000000000000011; // 0x80200003
default: polynom = 32'b0;
endcase
lfsr_fb = qi[length];
for (i=length-1; i>=1; i=i-1) begin
if (polynom[i])
lfsr_fb = lfsr_fb ~^ qi[i];
end
end
assign q_next = (qi == wrap_value) ? {length{1'b0}} :{qi[length-1:1],lfsr_fb};
always @ (posedge clk or posedge rst)
if (rst)
qi <= {length{1'b0}};
else
qi <= q_next;
always @ (posedge clk or posedge rst)
if (rst)
zq <= 1'b1;
else
zq <= q_next == {length{1'b0}};
endmodule
//////////////////////////////////////////////////////////////////////
//// ////
//// Versatile counter ////
//// ////
//// Description ////
//// Versatile counter, a reconfigurable binary, gray or LFSR ////
//// counter ////
//// ////
//// To Do: ////
//// - add LFSR with more taps ////
//// ////
//// Author(s): ////
//// - Michael Unneback, unneback@opencores.org ////
//// ORSoC AB ////
//// ////
//////////////////////////////////////////////////////////////////////
//// ////
//// Copyright (C) 2009 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 ////
//// ////
//////////////////////////////////////////////////////////////////////
// LFSR counter
module vl_cnt_lfsr_ce_zq ( cke, zq, rst, clk);
parameter length = 4;
input cke;
output reg zq;
input rst;
input clk;
parameter clear_value = 0;
parameter set_value = 1;
parameter wrap_value = 8;
parameter level1_value = 15;
reg [length:1] qi;
reg lfsr_fb;
wire [length:1] q_next;
reg [32:1] polynom;
integer i;
always @ (qi)
begin
case (length)
2: polynom = 32'b11; // 0x3
3: polynom = 32'b110; // 0x6
4: polynom = 32'b1100; // 0xC
5: polynom = 32'b10100; // 0x14
6: polynom = 32'b110000; // 0x30
7: polynom = 32'b1100000; // 0x60
8: polynom = 32'b10111000; // 0xb8
9: polynom = 32'b100010000; // 0x110
10: polynom = 32'b1001000000; // 0x240
11: polynom = 32'b10100000000; // 0x500
12: polynom = 32'b100000101001; // 0x829
13: polynom = 32'b1000000001100; // 0x100C
14: polynom = 32'b10000000010101; // 0x2015
15: polynom = 32'b110000000000000; // 0x6000
16: polynom = 32'b1101000000001000; // 0xD008
17: polynom = 32'b10010000000000000; // 0x12000
18: polynom = 32'b100000010000000000; // 0x20400
19: polynom = 32'b1000000000000100011; // 0x40023
20: polynom = 32'b10010000000000000000; // 0x90000
21: polynom = 32'b101000000000000000000; // 0x140000
22: polynom = 32'b1100000000000000000000; // 0x300000
23: polynom = 32'b10000100000000000000000; // 0x420000
24: polynom = 32'b111000010000000000000000; // 0xE10000
25: polynom = 32'b1001000000000000000000000; // 0x1200000
26: polynom = 32'b10000000000000000000100011; // 0x2000023
27: polynom = 32'b100000000000000000000010011; // 0x4000013
28: polynom = 32'b1100100000000000000000000000; // 0xC800000
29: polynom = 32'b10100000000000000000000000000; // 0x14000000
30: polynom = 32'b100000000000000000000000101001; // 0x20000029
31: polynom = 32'b1001000000000000000000000000000; // 0x48000000
32: polynom = 32'b10000000001000000000000000000011; // 0x80200003
default: polynom = 32'b0;
endcase
lfsr_fb = qi[length];
for (i=length-1; i>=1; i=i-1) begin
if (polynom[i])
lfsr_fb = lfsr_fb ~^ qi[i];
end
end
assign q_next = (qi == wrap_value) ? {length{1'b0}} :{qi[length-1:1],lfsr_fb};
always @ (posedge clk or posedge rst)
if (rst)
qi <= {length{1'b0}};
else
if (cke)
qi <= q_next;
always @ (posedge clk or posedge rst)
if (rst)
zq <= 1'b1;
else
if (cke)
zq <= q_next == {length{1'b0}};
endmodule
//////////////////////////////////////////////////////////////////////
//// ////
//// Versatile counter ////
//// ////
//// Description ////
//// Versatile counter, a reconfigurable binary, gray or LFSR ////
//// counter ////
//// ////
//// To Do: ////
//// - add LFSR with more taps ////
//// ////
//// Author(s): ////
//// - Michael Unneback, unneback@opencores.org ////
//// ORSoC AB ////
//// ////
//////////////////////////////////////////////////////////////////////
//// ////
//// Copyright (C) 2009 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 ////
//// ////
//////////////////////////////////////////////////////////////////////
// LFSR counter
module vl_cnt_lfsr_ce_q ( cke, q, rst, clk);
parameter length = 4;
input cke;
output [length:1] q;
input rst;
input clk;
parameter clear_value = 0;
parameter set_value = 1;
parameter wrap_value = 8;
parameter level1_value = 15;
reg [length:1] qi;
reg lfsr_fb;
wire [length:1] q_next;
reg [32:1] polynom;
integer i;
always @ (qi)
begin
case (length)
2: polynom = 32'b11; // 0x3
3: polynom = 32'b110; // 0x6
4: polynom = 32'b1100; // 0xC
5: polynom = 32'b10100; // 0x14
6: polynom = 32'b110000; // 0x30
7: polynom = 32'b1100000; // 0x60
8: polynom = 32'b10111000; // 0xb8
9: polynom = 32'b100010000; // 0x110
10: polynom = 32'b1001000000; // 0x240
11: polynom = 32'b10100000000; // 0x500
12: polynom = 32'b100000101001; // 0x829
13: polynom = 32'b1000000001100; // 0x100C
14: polynom = 32'b10000000010101; // 0x2015
15: polynom = 32'b110000000000000; // 0x6000
16: polynom = 32'b1101000000001000; // 0xD008
17: polynom = 32'b10010000000000000; // 0x12000
18: polynom = 32'b100000010000000000; // 0x20400
19: polynom = 32'b1000000000000100011; // 0x40023
20: polynom = 32'b10010000000000000000; // 0x90000
21: polynom = 32'b101000000000000000000; // 0x140000
22: polynom = 32'b1100000000000000000000; // 0x300000
23: polynom = 32'b10000100000000000000000; // 0x420000
24: polynom = 32'b111000010000000000000000; // 0xE10000
25: polynom = 32'b1001000000000000000000000; // 0x1200000
26: polynom = 32'b10000000000000000000100011; // 0x2000023
27: polynom = 32'b100000000000000000000010011; // 0x4000013
28: polynom = 32'b1100100000000000000000000000; // 0xC800000
29: polynom = 32'b10100000000000000000000000000; // 0x14000000
30: polynom = 32'b100000000000000000000000101001; // 0x20000029
31: polynom = 32'b1001000000000000000000000000000; // 0x48000000
32: polynom = 32'b10000000001000000000000000000011; // 0x80200003
default: polynom = 32'b0;
endcase
lfsr_fb = qi[length];
for (i=length-1; i>=1; i=i-1) begin
if (polynom[i])
lfsr_fb = lfsr_fb ~^ qi[i];
end
end
assign q_next = (qi == wrap_value) ? {length{1'b0}} :{qi[length-1:1],lfsr_fb};
always @ (posedge clk or posedge rst)
if (rst)
qi <= {length{1'b0}};
else
if (cke)
qi <= q_next;
assign q = qi;
endmodule
//////////////////////////////////////////////////////////////////////
//// ////
//// Versatile counter ////
//// ////
//// Description ////
//// Versatile counter, a reconfigurable binary, gray or LFSR ////
//// counter ////
//// ////
//// To Do: ////
//// - add LFSR with more taps ////
//// ////
//// Author(s): ////
//// - Michael Unneback, unneback@opencores.org ////
//// ORSoC AB ////
//// ////
//////////////////////////////////////////////////////////////////////
//// ////
//// Copyright (C) 2009 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 ////
//// ////
//////////////////////////////////////////////////////////////////////
// LFSR counter
module vl_cnt_lfsr_ce_clear_q ( clear, cke, q, rst, clk);
parameter length = 4;
input clear;
input cke;
output [length:1] q;
input rst;
input clk;
parameter clear_value = 0;
parameter set_value = 1;
parameter wrap_value = 8;
parameter level1_value = 15;
reg [length:1] qi;
reg lfsr_fb;
wire [length:1] q_next;
reg [32:1] polynom;
integer i;
always @ (qi)
begin
case (length)
2: polynom = 32'b11; // 0x3
3: polynom = 32'b110; // 0x6
4: polynom = 32'b1100; // 0xC
5: polynom = 32'b10100; // 0x14
6: polynom = 32'b110000; // 0x30
7: polynom = 32'b1100000; // 0x60
8: polynom = 32'b10111000; // 0xb8
9: polynom = 32'b100010000; // 0x110
10: polynom = 32'b1001000000; // 0x240
11: polynom = 32'b10100000000; // 0x500
12: polynom = 32'b100000101001; // 0x829
13: polynom = 32'b1000000001100; // 0x100C
14: polynom = 32'b10000000010101; // 0x2015
15: polynom = 32'b110000000000000; // 0x6000
16: polynom = 32'b1101000000001000; // 0xD008
17: polynom = 32'b10010000000000000; // 0x12000
18: polynom = 32'b100000010000000000; // 0x20400
19: polynom = 32'b1000000000000100011; // 0x40023
20: polynom = 32'b10010000000000000000; // 0x90000
21: polynom = 32'b101000000000000000000; // 0x140000
22: polynom = 32'b1100000000000000000000; // 0x300000
23: polynom = 32'b10000100000000000000000; // 0x420000
24: polynom = 32'b111000010000000000000000; // 0xE10000
25: polynom = 32'b1001000000000000000000000; // 0x1200000
26: polynom = 32'b10000000000000000000100011; // 0x2000023
27: polynom = 32'b100000000000000000000010011; // 0x4000013
28: polynom = 32'b1100100000000000000000000000; // 0xC800000
29: polynom = 32'b10100000000000000000000000000; // 0x14000000
30: polynom = 32'b100000000000000000000000101001; // 0x20000029
31: polynom = 32'b1001000000000000000000000000000; // 0x48000000
32: polynom = 32'b10000000001000000000000000000011; // 0x80200003
default: polynom = 32'b0;
endcase
lfsr_fb = qi[length];
for (i=length-1; i>=1; i=i-1) begin
if (polynom[i])
lfsr_fb = lfsr_fb ~^ qi[i];
end
end
assign q_next = clear ? {length{1'b0}} :(qi == wrap_value) ? {length{1'b0}} :{qi[length-1:1],lfsr_fb};
always @ (posedge clk or posedge rst)
if (rst)
qi <= {length{1'b0}};
else
if (cke)
qi <= q_next;
assign q = qi;
endmodule
//////////////////////////////////////////////////////////////////////
//// ////
//// Versatile counter ////
//// ////
//// Description ////
//// Versatile counter, a reconfigurable binary, gray or LFSR ////
//// counter ////
//// ////
//// To Do: ////
//// - add LFSR with more taps ////
//// ////
//// Author(s): ////
//// - Michael Unneback, unneback@opencores.org ////
//// ORSoC AB ////
//// ////
//////////////////////////////////////////////////////////////////////
//// ////
//// Copyright (C) 2009 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 ////
//// ////
//////////////////////////////////////////////////////////////////////
// LFSR counter
module vl_cnt_lfsr_ce_q_zq ( cke, q, zq, rst, clk);
parameter length = 4;
input cke;
output [length:1] q;
output reg zq;
input rst;
input clk;
parameter clear_value = 0;
parameter set_value = 1;
parameter wrap_value = 8;
parameter level1_value = 15;
reg [length:1] qi;
reg lfsr_fb;
wire [length:1] q_next;
reg [32:1] polynom;
integer i;
always @ (qi)
begin
case (length)
2: polynom = 32'b11; // 0x3
3: polynom = 32'b110; // 0x6
4: polynom = 32'b1100; // 0xC
5: polynom = 32'b10100; // 0x14
6: polynom = 32'b110000; // 0x30
7: polynom = 32'b1100000; // 0x60
8: polynom = 32'b10111000; // 0xb8
9: polynom = 32'b100010000; // 0x110
10: polynom = 32'b1001000000; // 0x240
11: polynom = 32'b10100000000; // 0x500
12: polynom = 32'b100000101001; // 0x829
13: polynom = 32'b1000000001100; // 0x100C
14: polynom = 32'b10000000010101; // 0x2015
15: polynom = 32'b110000000000000; // 0x6000
16: polynom = 32'b1101000000001000; // 0xD008
17: polynom = 32'b10010000000000000; // 0x12000
18: polynom = 32'b100000010000000000; // 0x20400
19: polynom = 32'b1000000000000100011; // 0x40023
20: polynom = 32'b10010000000000000000; // 0x90000
21: polynom = 32'b101000000000000000000; // 0x140000
22: polynom = 32'b1100000000000000000000; // 0x300000
23: polynom = 32'b10000100000000000000000; // 0x420000
24: polynom = 32'b111000010000000000000000; // 0xE10000
25: polynom = 32'b1001000000000000000000000; // 0x1200000
26: polynom = 32'b10000000000000000000100011; // 0x2000023
27: polynom = 32'b100000000000000000000010011; // 0x4000013
28: polynom = 32'b1100100000000000000000000000; // 0xC800000
29: polynom = 32'b10100000000000000000000000000; // 0x14000000
30: polynom = 32'b100000000000000000000000101001; // 0x20000029
31: polynom = 32'b1001000000000000000000000000000; // 0x48000000
32: polynom = 32'b10000000001000000000000000000011; // 0x80200003
default: polynom = 32'b0;
endcase
lfsr_fb = qi[length];
for (i=length-1; i>=1; i=i-1) begin
if (polynom[i])
lfsr_fb = lfsr_fb ~^ qi[i];
end
end
assign q_next = (qi == wrap_value) ? {length{1'b0}} :{qi[length-1:1],lfsr_fb};
always @ (posedge clk or posedge rst)
if (rst)
qi <= {length{1'b0}};
else
if (cke)
qi <= q_next;
assign q = qi;
always @ (posedge clk or posedge rst)
if (rst)
zq <= 1'b1;
else
if (cke)
zq <= q_next == {length{1'b0}};
endmodule
//////////////////////////////////////////////////////////////////////
//// ////
//// Versatile counter ////
//// ////
//// Description ////
//// Versatile counter, a reconfigurable binary, gray or LFSR ////
//// counter ////
//// ////
//// To Do: ////
//// - add LFSR with more taps ////
//// ////
//// Author(s): ////
//// - Michael Unneback, unneback@opencores.org ////
//// ORSoC AB ////
//// ////
//////////////////////////////////////////////////////////////////////
//// ////
//// Copyright (C) 2009 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 ////
//// ////
//////////////////////////////////////////////////////////////////////
// LFSR counter
module vl_cnt_lfsr_ce_rew_l1 ( cke, rew, level1, rst, clk);
parameter length = 4;
input cke;
input rew;
output reg level1;
input rst;
input clk;
parameter clear_value = 0;
parameter set_value = 1;
parameter wrap_value = 8;
parameter level1_value = 15;
wire clear;
assign clear = 1'b0;
reg [length:1] qi;
reg lfsr_fb, lfsr_fb_rew;
wire [length:1] q_next, q_next_fw, q_next_rew;
reg [32:1] polynom_rew;
integer j;
reg [32:1] polynom;
integer i;
always @ (qi)
begin
case (length)
2: polynom = 32'b11; // 0x3
3: polynom = 32'b110; // 0x6
4: polynom = 32'b1100; // 0xC
5: polynom = 32'b10100; // 0x14
6: polynom = 32'b110000; // 0x30
7: polynom = 32'b1100000; // 0x60
8: polynom = 32'b10111000; // 0xb8
9: polynom = 32'b100010000; // 0x110
10: polynom = 32'b1001000000; // 0x240
11: polynom = 32'b10100000000; // 0x500
12: polynom = 32'b100000101001; // 0x829
13: polynom = 32'b1000000001100; // 0x100C
14: polynom = 32'b10000000010101; // 0x2015
15: polynom = 32'b110000000000000; // 0x6000
16: polynom = 32'b1101000000001000; // 0xD008
17: polynom = 32'b10010000000000000; // 0x12000
18: polynom = 32'b100000010000000000; // 0x20400
19: polynom = 32'b1000000000000100011; // 0x40023
20: polynom = 32'b10010000000000000000; // 0x90000
21: polynom = 32'b101000000000000000000; // 0x140000
22: polynom = 32'b1100000000000000000000; // 0x300000
23: polynom = 32'b10000100000000000000000; // 0x420000
24: polynom = 32'b111000010000000000000000; // 0xE10000
25: polynom = 32'b1001000000000000000000000; // 0x1200000
26: polynom = 32'b10000000000000000000100011; // 0x2000023
27: polynom = 32'b100000000000000000000010011; // 0x4000013
28: polynom = 32'b1100100000000000000000000000; // 0xC800000
29: polynom = 32'b10100000000000000000000000000; // 0x14000000
30: polynom = 32'b100000000000000000000000101001; // 0x20000029
31: polynom = 32'b1001000000000000000000000000000; // 0x48000000
32: polynom = 32'b10000000001000000000000000000011; // 0x80200003
default: polynom = 32'b0;
endcase
lfsr_fb = qi[length];
for (i=length-1; i>=1; i=i-1) begin
if (polynom[i])
lfsr_fb = lfsr_fb ~^ qi[i];
end
end
assign q_next_fw = (qi == wrap_value) ? {length{1'b0}} :{qi[length-1:1],lfsr_fb};
always @ (qi)
begin
case (length)
2: polynom_rew = 32'b11;
3: polynom_rew = 32'b110;
4: polynom_rew = 32'b1100;
5: polynom_rew = 32'b10100;
6: polynom_rew = 32'b110000;
7: polynom_rew = 32'b1100000;
8: polynom_rew = 32'b10111000;
9: polynom_rew = 32'b100010000;
10: polynom_rew = 32'b1001000000;
11: polynom_rew = 32'b10100000000;
12: polynom_rew = 32'b100000101001;
13: polynom_rew = 32'b1000000001100;
14: polynom_rew = 32'b10000000010101;
15: polynom_rew = 32'b110000000000000;
16: polynom_rew = 32'b1101000000001000;
17: polynom_rew = 32'b10010000000000000;
18: polynom_rew = 32'b100000010000000000;
19: polynom_rew = 32'b1000000000000100011;
20: polynom_rew = 32'b10000010000000000000;
21: polynom_rew = 32'b101000000000000000000;
22: polynom_rew = 32'b1100000000000000000000;
23: polynom_rew = 32'b10000100000000000000000;
24: polynom_rew = 32'b111000010000000000000000;
25: polynom_rew = 32'b1001000000000000000000000;
26: polynom_rew = 32'b10000000000000000000100011;
27: polynom_rew = 32'b100000000000000000000010011;
28: polynom_rew = 32'b1100100000000000000000000000;
29: polynom_rew = 32'b10100000000000000000000000000;
30: polynom_rew = 32'b100000000000000000000000101001;
31: polynom_rew = 32'b1001000000000000000000000000000;
32: polynom_rew = 32'b10000000001000000000000000000011;
default: polynom_rew = 32'b0;
endcase
// rotate left
polynom_rew[length:1] = { polynom_rew[length-2:1],polynom_rew[length] };
lfsr_fb_rew = qi[length];
for (i=length-1; i>=1; i=i-1) begin
if (polynom_rew[i])
lfsr_fb_rew = lfsr_fb_rew ~^ qi[i];
end
end
assign q_next_rew = (qi == wrap_value) ? {length{1'b0}} :{lfsr_fb_rew,qi[length:2]};
assign q_next = rew ? q_next_rew : q_next_fw;
always @ (posedge clk or posedge rst)
if (rst)
qi <= {length{1'b0}};
else
if (cke)
qi <= q_next;
always @ (posedge clk or posedge rst)
if (rst)
level1 <= 1'b0;
else
if (cke)
if (clear)
level1 <= 1'b0;
else if (q_next == level1_value)
level1 <= 1'b1;
else if (qi == level1_value & rew)
level1 <= 1'b0;
endmodule
//////////////////////////////////////////////////////////////////////
//// ////
//// Versatile counter ////
//// ////
//// Description ////
//// Versatile counter, a reconfigurable binary, gray or LFSR ////
//// counter ////
//// ////
//// To Do: ////
//// - add LFSR with more taps ////
//// ////
//// Author(s): ////
//// - Michael Unneback, unneback@opencores.org ////
//// ORSoC AB ////
//// ////
//////////////////////////////////////////////////////////////////////
//// ////
//// Copyright (C) 2009 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 ////
//// ////
//////////////////////////////////////////////////////////////////////
// GRAY counter
module vl_cnt_gray_ce_bin (
cke, q, q_bin, rst, clk);
module vl_cnt_gray ( q, rst, clk);
parameter length = 4;
output reg [length:1] q;
input rst;
input clk;
parameter clear_value = 0;
parameter set_value = 1;
parameter wrap_value = 8;
parameter level1_value = 15;
reg [length:1] qi;
wire [length:1] q_next;
assign q_next = qi + {{length-1{1'b0}},1'b1};
always @ (posedge clk or posedge rst)
if (rst)
qi <= {length{1'b0}};
else
qi <= q_next;
always @ (posedge clk or posedge rst)
if (rst)
q <= {length{1'b0}};
else
q <= (q_next>>1) ^ q_next;
endmodule
//////////////////////////////////////////////////////////////////////
//// ////
//// Versatile counter ////
//// ////
//// Description ////
//// Versatile counter, a reconfigurable binary, gray or LFSR ////
//// counter ////
//// ////
//// To Do: ////
//// - add LFSR with more taps ////
//// ////
//// Author(s): ////
//// - Michael Unneback, unneback@opencores.org ////
//// ORSoC AB ////
//// ////
//////////////////////////////////////////////////////////////////////
//// ////
//// Copyright (C) 2009 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 ////
//// ////
//////////////////////////////////////////////////////////////////////
// GRAY counter
module vl_cnt_gray_ce ( cke, q, rst, clk);
parameter length = 4;
input cke;
output reg [length:1] q;
input rst;
input clk;
parameter clear_value = 0;
parameter set_value = 1;
parameter wrap_value = 8;
parameter level1_value = 15;
reg [length:1] qi;
wire [length:1] q_next;
assign q_next = qi + {{length-1{1'b0}},1'b1};
always @ (posedge clk or posedge rst)
if (rst)
qi <= {length{1'b0}};
else
if (cke)
qi <= q_next;
always @ (posedge clk or posedge rst)
if (rst)
q <= {length{1'b0}};
else
if (cke)
q <= (q_next>>1) ^ q_next;
endmodule
//////////////////////////////////////////////////////////////////////
//// ////
//// Versatile counter ////
//// ////
//// Description ////
//// Versatile counter, a reconfigurable binary, gray or LFSR ////
//// counter ////
//// ////
//// To Do: ////
//// - add LFSR with more taps ////
//// ////
//// Author(s): ////
//// - Michael Unneback, unneback@opencores.org ////
//// ORSoC AB ////
//// ////
//////////////////////////////////////////////////////////////////////
//// ////
//// Copyright (C) 2009 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 ////
//// ////
//////////////////////////////////////////////////////////////////////
// GRAY counter
module vl_cnt_gray_ce_bin ( cke, q, q_bin, rst, clk);
parameter length = 4;
input cke;
output reg [length:1] q;
output [length:1] q_bin;
input rst;
input clk;
/logic.v
39,10 → 39,7
//// from http://www.opencores.org/lgpl.shtml ////
//// ////
//////////////////////////////////////////////////////////////////////
`ifdef MUX_ANDOR
`define MODULE mux_andor
module `BASE`MODULE ( a, sel, dout);
`undef MODULE
module vl_mux_andor ( a, sel, dout);
 
parameter width = 32;
parameter nr_of_ports = 4;
62,12 → 59,8
end
 
endmodule
`endif
 
`ifdef MUX2_ANDOR
`define MODULE mux2_andor
module `BASE`MODULE ( a1, a0, sel, dout);
`undef MODULE
module vl_mux2_andor ( a1, a0, sel, dout);
 
parameter width = 32;
localparam nr_of_ports = 2;
75,19 → 68,13
input [nr_of_ports-1:0] sel;
output [width-1:0] dout;
 
`define MODULE mux_andor
`BASE`MODULE
vl_mux_andor
# ( .width(width), .nr_of_ports(nr_of_ports))
mux0( .a({a1,a0}), .sel(sel), .dout(dout));
`undef MODULE
 
endmodule
`endif
 
`ifdef MUX3_ANDOR
`define MODULE mux3_andor
module `BASE`MODULE ( a2, a1, a0, sel, dout);
`undef MODULE
module vl_mux3_andor ( a2, a1, a0, sel, dout);
 
parameter width = 32;
localparam nr_of_ports = 3;
95,18 → 82,13
input [nr_of_ports-1:0] sel;
output [width-1:0] dout;
 
`define MODULE mux_andor
`BASE`MODULE
vl_mux_andor
# ( .width(width), .nr_of_ports(nr_of_ports))
mux0( .a({a2,a1,a0}), .sel(sel), .dout(dout));
`undef MODULE
endmodule
`endif
 
`ifdef MUX4_ANDOR
`define MODULE mux4_andor
module `BASE`MODULE ( a3, a2, a1, a0, sel, dout);
`undef MODULE
module vl_mux4_andor ( a3, a2, a1, a0, sel, dout);
 
parameter width = 32;
localparam nr_of_ports = 4;
114,19 → 96,13
input [nr_of_ports-1:0] sel;
output [width-1:0] dout;
 
`define MODULE mux_andor
`BASE`MODULE
vl_mux_andor
# ( .width(width), .nr_of_ports(nr_of_ports))
mux0( .a({a3,a2,a1,a0}), .sel(sel), .dout(dout));
`undef MODULE
 
endmodule
`endif
 
`ifdef MUX5_ANDOR
`define MODULE mux5_andor
module `BASE`MODULE ( a4, a3, a2, a1, a0, sel, dout);
`undef MODULE
module vl_mux5_andor ( a4, a3, a2, a1, a0, sel, dout);
 
parameter width = 32;
localparam nr_of_ports = 5;
134,19 → 110,13
input [nr_of_ports-1:0] sel;
output [width-1:0] dout;
 
`define MODULE mux_andor
`BASE`MODULE
vl_mux_andor
# ( .width(width), .nr_of_ports(nr_of_ports))
mux0( .a({a4,a3,a2,a1,a0}), .sel(sel), .dout(dout));
`undef MODULE
 
endmodule
`endif
 
`ifdef MUX6_ANDOR
`define MODULE mux6_andor
module `BASE`MODULE ( a5, a4, a3, a2, a1, a0, sel, dout);
`undef MODULE
module vl_mux6_andor ( a5, a4, a3, a2, a1, a0, sel, dout);
 
parameter width = 32;
localparam nr_of_ports = 6;
154,11 → 124,8
input [nr_of_ports-1:0] sel;
output [width-1:0] dout;
 
`define MODULE mux_andor
`BASE`MODULE
vl_mux_andor
# ( .width(width), .nr_of_ports(nr_of_ports))
mux0( .a({a5,a4,a3,a2,a1,a0}), .sel(sel), .dout(dout));
`undef MODULE
 
endmodule
`endif
/Makefile
1,5 → 1,4
VERILOG_FILES = defines.v
VERILOG_FILES += clk_and_reset.v
VERILOG_FILES = clk_and_reset.v
VERILOG_FILES += registers.v
VERILOG_FILES += logic.v
 
31,9 → 30,11
VERSATILE_LIBRARIES = versatile_library.v
VERSATILE_LIBRARIES += versatile_library_actel.v
VERSATILE_LIBRARIES += versatile_library_altera.v
OUT_FILE ?= custom.v
VERSATILE_LIBRARIES += $(OUT_FILE)
 
svn_export:
svn export http://opencores.org/ocsvn/versatile_counter/versatile_counter/trunk/rtl/verilog/versatile_counter_generator.php
svn export http://opencores.org/ocsvn/versatile_counter/versatile_counter/trunk/rtl/verilog/CSV.class.php
 
#.PHONY: $(VERILOG_FILES_CNT)
$(VERILOG_FILES_CNT):
./versatile_counter_generator.php cnt_bin.csv > vl_cnt_bin.v
59,15 → 60,11
cat $(VERILOG_FILES) | sed -r -e 's/\/\/E2_([a-z]+)/`\1/' > versatile_library.v
versatile_library_actel.v: $(VERILOG_FILES)
vppreproc --noline --noblank +define+ACTEL +define+ALL $(VERILOG_FILES) | sed -r -e 's/\/\/E2_([a-z]+)/`\1/' > versatile_library_actel.v
vppreproc --noline --noblank +define+ACTEL $(VERILOG_FILES) | sed -r -e 's/\/\/E2_([a-z]+)/`\1/' > versatile_library_actel.v
versatile_library_altera.v: $(VERILOG_FILES)
vppreproc --noline --noblank +define+ALTERA +define+ALL $(VERILOG_FILES) | sed -r -e 's/\/\/E2_([a-z]+)/`\1/' > versatile_library_altera.v
$(OUT_FILE): $(VERILOG_FILES)
vppreproc --noline --noblank $(DEFINE_FILE) $(VERILOG_FILES) | sed -r -e 's/\/\/E2_([a-z]+)/`\1/' > $(OUT_FILE)
vppreproc --noline --noblank +define+ALTERA $(VERILOG_FILES) | sed -r -e 's/\/\/E2_([a-z]+)/`\1/' > versatile_library_altera.v
 
 
all: $(VERSATILE_LIBRARIES)
 
clean:
/clk_and_reset.v
45,7 → 45,7
// use to enable global buffers for high fan out signals such as clock and reset
 
`ifdef ACTEL
`ifdef GBUF
 
`timescale 1 ns/100 ps
// Version: 8.4 8.4.0.33
module gbuf(GL,CLK);
60,9 → 60,7
endmodule
`timescale 1 ns/1 ns
`define MODULE gbuf
module `BASE`MODULE ( i, o);
`undef MODULE
module vl_gbuf ( i, o);
input i;
output o;
//E2_ifdef SIM_GBUF
71,45 → 69,33
gbuf gbuf_i0 ( .CLK(i), .GL(o));
//E2_endif
endmodule
`endif
 
`else
 
`ifdef ALTERA
`ifdef GBUF
`ifdef ALTERA
//altera
`define MODULE gbuf
module `BASE`MODULE ( i, o);
`undef MODULE
module vl_gbuf ( i, o);
input i;
output o;
assign o = i;
endmodule
`endif
 
`else
 
`ifdef GBUF
`timescale 1 ns/100 ps
`define MODULE
module `BASE`MODULE ( i, o);
`undef MODULE
module vl_gbuf ( i, o);
input i;
output o;
assign o = i;
endmodule
`endif
`endif // ALTERA
`endif //ACTEL
 
`ifdef SYNC_RST
// sync reset
// input active lo async reset, normally from external reset generator and/or switch
// output active high global reset sync with two DFFs
`timescale 1 ns/100 ps
`define MODULE sync_rst
module `BASE`MODULE ( rst_n_i, rst_o, clk);
`undef MODULE
module vl_sync_rst ( rst_n_i, rst_o, clk);
input rst_n_i, clk;
output rst_o;
reg [1:0] tmp;
118,20 → 104,14
tmp <= 2'b11;
else
tmp <= {1'b0,tmp[1]};
`define MODULE gbuf
`BASE`MODULE buf_i0( .i(tmp[0]), .o(rst_o));
`undef MODULE
vl_gbuf buf_i0( .i(tmp[0]), .o(rst_o));
endmodule
`endif
 
`ifdef PLL
// vl_pll
`ifdef ACTEL
///////////////////////////////////////////////////////////////////////////////
`timescale 1 ps/1 ps
`define MODULE pll
module `BASE`MODULE ( clk_i, rst_n_i, lock, clk_o, rst_o);
`undef MODULE
module vl_pll ( clk_i, rst_n_i, lock, clk_o, rst_o);
parameter index = 0;
parameter number_of_clk = 1;
parameter period_time_0 = 20000;
221,9 → 201,7
 
genvar i;
generate for (i=0;i<number_of_clk;i=i+1) begin: clock
`define MODULE sync_rst
`BASE`MODULE rst_i0 ( .rst_n_i(rst_n_i | lock), .rst_o(rst_o), .clk(clk_o[i]));
`undef MODULE
vl_sync_rst rst_i0 ( .rst_n_i(rst_n_i | lock), .rst_o(rst_o), .clk(clk_o[i]));
end
endgenerate
endmodule
236,9 → 214,7
`ifdef ALTERA
 
`timescale 1 ps/1 ps
`define MODULE pll
module `BASE`MODULE ( clk_i, rst_n_i, lock, clk_o, rst_o);
`undef MODULE
module vl_pll ( clk_i, rst_n_i, lock, clk_o, rst_o);
parameter index = 0;
parameter number_of_clk = 1;
parameter period_time_0 = 20000;
363,9 → 339,7
 
genvar i;
generate for (i=0;i<number_of_clk;i=i+1) begin: clock
`define MODULE sync_rst
`BASE`MODULE rst_i0 ( .rst_n_i(rst_n_i | lock), .rst_o(rst_o[i]), .clk(clk_o[i]));
`undef MODULE
vl_sync_rst rst_i0 ( .rst_n_i(rst_n_i | lock), .rst_o(rst_o[i]), .clk(clk_o[i]));
end
endgenerate
endmodule
376,9 → 350,7
 
// generic PLL
`timescale 1 ps/1 ps
`define MODULE pll
module `BASE`MODULE ( clk_i, rst_n_i, lock, clk_o, rst_o);
`undef MODULE
module vl_pll ( clk_i, rst_n_i, lock, clk_o, rst_o);
parameter index = 0;
parameter number_of_clk = 1;
parameter period_time_0 = 20000;
405,9 → 377,7
 
genvar i;
generate for (i=0;i<number_of_clk;i=i+1) begin: clock
`define MODULE sync_rst
`BASE`MODULE rst_i0 ( .rst_n_i(rst_n_i | lock), .rst_o(rst_o[i]), .clk(clk_o[i]));
`undef MODULE
vl_sync_rst rst_i0 ( .rst_n_i(rst_n_i | lock), .rst_o(rst_o[i]), .clk(clk_o[i]));
end
endgenerate
 
417,5 → 387,3
 
`endif //altera
`endif //actel
`undef MODULE
`endif
/cnt_lfsr_ce_q_zq.csv
1,5 → 1,5
Name,type,,,,
cnt_lfsr_ce_q_zq,LFSR,,,,
vl_cnt_lfsr_ce_q_zq,LFSR,,,,
,,,,,
clear,set,cke,rew,,
0,0,1,0,,
/memories.v
40,12 → 40,9
//// ////
//////////////////////////////////////////////////////////////////////
 
`ifdef ROM_INIT
/// ROM
`define MODULE rom_init
module `BASE`MODULE ( adr, q, clk);
`undef MODULE
 
module vl_rom_init ( adr, q, clk);
parameter data_width = 32;
parameter addr_width = 8;
input [(addr_width-1):0] adr;
62,7 → 59,6
q <= rom[adr];
 
endmodule
`endif
 
/*
module vl_rom ( adr, q, clk);
97,13 → 93,9
 
endmodule
*/
 
`ifdef RAM
`define MODULE ram
// Single port RAM
module `BASE`MODULE ( d, adr, we, q, clk);
`undef MODULE
 
module vl_ram ( d, adr, we, q, clk);
parameter data_width = 32;
parameter addr_width = 8;
input [(data_width-1):0] d;
130,13 → 122,8
end
 
endmodule
`endif
 
`ifdef RAM_BE
`define MODULE ram_be
module `BASE`MODULE ( d, adr, be, we, q, clk);
`undef MODULE
 
module vl_ram_be ( d, adr, be, we, q, clk);
parameter data_width = 32;
parameter addr_width = 8;
input [(data_width-1):0] d;
170,8 → 157,8
q <= ram[adr];
 
endmodule
`endif
 
 
// Dual port RAM
 
// ACTEL FPGA should not use logic to handle rw collision
181,10 → 168,7
`define SYN
`endif
 
`ifdef DPRAM_1R1W
`define MODULE dpram_1r1w
module `BASE`MODULE ( d_a, adr_a, we_a, clk_a, q_b, adr_b, clk_b );
`undef MODULE
module vl_dpram_1r1w ( d_a, adr_a, we_a, clk_a, q_b, adr_b, clk_b );
parameter data_width = 32;
parameter addr_width = 8;
input [(data_width-1):0] d_a;
212,15 → 196,9
always @ (posedge clk_b)
adr_b_reg <= adr_b;
assign q_b = ram[adr_b_reg];
endmodule
`endif
 
`ifdef DPRAM_2R1W
`define MODULE dpram_2r1w
module `BASE`MODULE ( d_a, q_a, adr_a, we_a, clk_a, q_b, adr_b, clk_b );
`undef MODULE
 
module vl_dpram_2r1w ( d_a, q_a, adr_a, we_a, clk_a, q_b, adr_b, clk_b );
parameter data_width = 32;
parameter addr_width = 8;
input [(data_width-1):0] d_a;
252,13 → 230,8
always @ (posedge clk_b)
q_b <= ram[adr_b];
endmodule
`endif
 
`ifdef DPRAM_2R2W
`define MODULE dpram_2r2w
module `BASE`MODULE ( d_a, q_a, adr_a, we_a, clk_a, d_b, q_b, adr_b, we_b, clk_b );
`undef MODULE
 
module vl_dpram_2r2w ( d_a, q_a, adr_a, we_a, clk_a, d_b, q_b, adr_b, we_b, clk_b );
parameter data_width = 32;
parameter addr_width = 8;
input [(data_width-1):0] d_a;
296,15 → 269,11
ram[adr_b] <= d_b;
end
endmodule
`endif
 
// Content addresable memory, CAM
 
`ifdef FIFO_1R1W_FILL_LEVEL_SYNC
// FIFO
`define MODULE fifo_1r1w_fill_level_sync
module `BASE`MODULE (
`undef MODULE
module vl_fifo_1r1w_fill_level_sync (
d, wr, fifo_full,
q, rd, fifo_empty,
fill_level,
328,36 → 297,28
 
wire [addr_width:1] wadr, radr;
 
`define MODULE cnt_bin_ce
`BASE`MODULE
vl_cnt_bin_ce
# ( .length(addr_width))
fifo_wr_adr( .cke(wr), .q(wadr), .rst(rst), .clk(clk));
`BASE`MODULE
vl_cnt_bin_ce
# (.length(addr_width))
fifo_rd_adr( .cke(rd), .q(radr), .rst(rst), .clk(clk));
`undef MODULE
 
`define MODULE dpram_1r1w
`BASE`MODULE
vl_dpram_1r1w
# (.data_width(data_width), .addr_width(addr_width))
dpram ( .d_a(d), .adr_a(wadr), .we_a(wr), .clk_a(clk), .q_b(q), .adr_b(radr), .clk_b(clk));
`undef MODULE
 
`define MODULE cnt_bin_ce_rew_q_zq_l1
`BASE`MODULE
vl_cnt_bin_ce_rew_q_zq_l1
# (.length(addr_width+1), .level1_value(1<<addr_width))
fill_level_cnt( .cke(rd ^ wr), .rew(rd), .q(fill_level), .zq(fifo_empty), .level1(fifo_full), .rst(rst), .clk(clk));
`undef MODULE
 
endmodule
`endif
 
`ifdef FIFO_2R2W_SYNC_SIMPLEX
// Intended use is two small FIFOs (RX and TX typically) in one FPGA RAM resource
// RAM is supposed to be larger than the two FIFOs
// LFSR counters used adr pointers
`define MODULE fifo_2r2w_sync_simplex
module `BASE`MODULE (
`undef MODULE
module vl_fifo_2r2w_sync_simplex (
// a side
a_d, a_wr, a_fifo_full,
a_q, a_rd, a_fifo_empty,
400,52 → 361,42
// dpram
wire [addr_width:0] a_dpram_adr, b_dpram_adr;
 
`define MODULE cnt_lfsr_ce
`BASE`MODULE
vl_cnt_lfsr_ce
# ( .length(addr_width))
fifo_a_wr_adr( .cke(a_wr), .q(a_wadr), .rst(rst), .clk(clk));
`BASE`MODULE
vl_cnt_lfsr_ce
# (.length(addr_width))
fifo_a_rd_adr( .cke(a_rd), .q(a_radr), .rst(rst), .clk(clk));
 
`BASE`MODULE
vl_cnt_lfsr_ce
# ( .length(addr_width))
fifo_b_wr_adr( .cke(b_wr), .q(b_wadr), .rst(rst), .clk(clk));
`BASE`MODULE
vl_cnt_lfsr_ce
# (.length(addr_width))
fifo_b_rd_adr( .cke(b_rd), .q(b_radr), .rst(rst), .clk(clk));
`undef MODULE
 
// mux read or write adr to DPRAM
assign a_dpram_adr = (a_wr) ? {1'b0,a_wadr} : {1'b1,a_radr};
assign b_dpram_adr = (b_wr) ? {1'b1,b_wadr} : {1'b0,b_radr};
 
`define MODULE dpram_2r2w
`BASE`MODULE
vl_dpram_2r2w
# (.data_width(data_width), .addr_width(addr_width+1))
dpram ( .d_a(a_d), .q_a(a_q), .adr_a(a_dpram_adr), .we_a(a_wr), .clk_a(a_clk),
.d_b(b_d), .q_b(b_q), .adr_b(b_dpram_adr), .we_b(b_wr), .clk_b(b_clk));
`undef MODULE
 
`define MODULE cnt_bin_ce_rew_zq_l1
`BASE`MODULE
vl_cnt_bin_ce_rew_zq_l1
# (.length(addr_width), .level1_value(fifo_full_level))
a_fill_level_cnt( .cke(a_rd ^ a_wr), .rew(a_rd), .q(a_fill_level), .zq(a_fifo_empty), .level1(a_fifo_full), .rst(rst), .clk(clk));
 
`BASE`MODULE
vl_cnt_bin_ce_rew_zq_l1
# (.length(addr_width), .level1_value(fifo_full_level))
b_fill_level_cnt( .cke(b_rd ^ b_wr), .rew(b_rd), .q(b_fill_level), .zq(b_fifo_empty), .level1(b_fifo_full), .rst(rst), .clk(clk));
`undef MODULE
 
endmodule
`endif
 
`ifdef FIFO_CMP_ASYNC
`define MODULE fifo_cmp_async
module `BASE`MODULE ( wptr, rptr, fifo_empty, fifo_full, wclk, rclk, rst );
`undef MODULE
module vl_fifo_cmp_async ( wptr, rptr, fifo_empty, fifo_full, wclk, rclk, rst );
 
parameter addr_width = 4;
parameter N = addr_width-1;
498,9 → 449,8
default : direction_clr <= 1'b0;
endcase
 
`define MODULE dff_sr
`ifndef GENERATE_DIRECTION_AS_LATCH
`BASE`MODULE dff_sr_dir( .aclr(direction_clr), .aset(direction_set), .clock(1'b1), .data(1'b1), .q(direction));
vl_dff_sr dff_sr_dir( .aclr(direction_clr), .aset(direction_set), .clock(1'b1), .data(1'b1), .q(direction));
`endif
 
`ifdef GENERATE_DIRECTION_AS_LATCH
514,9 → 464,8
assign async_empty = (wptr == rptr) && (direction==going_empty);
assign async_full = (wptr == rptr) && (direction==going_full);
 
`BASE`MODULE dff_sr_empty0( .aclr(rst), .aset(async_full), .clock(wclk), .data(async_full), .q(fifo_full2));
`BASE`MODULE dff_sr_empty1( .aclr(rst), .aset(async_full), .clock(wclk), .data(fifo_full2), .q(fifo_full));
`undef MODULE
vl_dff_sr dff_sr_empty0( .aclr(rst), .aset(async_full), .clock(wclk), .data(async_full), .q(fifo_full2));
vl_dff_sr dff_sr_empty1( .aclr(rst), .aset(async_full), .clock(wclk), .data(fifo_full2), .q(fifo_full));
 
/*
always @ (posedge wclk or posedge rst or posedge async_full)
532,17 → 481,12
{fifo_empty, fifo_empty2} <= 2'b11;
else
{fifo_empty,fifo_empty2} <= {fifo_empty2,async_empty}; */
`define MODULE dff
`BASE`MODULE # ( .reset_value(1'b1)) dff0 ( .d(async_empty), .q(fifo_empty2), .clk(rclk), .rst(async_empty));
`BASE`MODULE # ( .reset_value(1'b1)) dff1 ( .d(fifo_empty2), .q(fifo_empty), .clk(rclk), .rst(async_empty));
`undef MODULE
vl_dff # ( .reset_value(1'b1)) dff0 ( .d(async_empty), .q(fifo_empty2), .clk(rclk), .rst(async_empty));
vl_dff # ( .reset_value(1'b1)) dff1 ( .d(fifo_empty2), .q(fifo_empty), .clk(rclk), .rst(async_empty));
 
endmodule // async_compb
`endif
 
`ifdef FIFO_1R1W_ASYNC
`define MODULE fifo_1r1w_async
module `BASE`MODULE (
`undef MODULE
module vl_fifo_1r1w_async (
d, wr, fifo_full, wr_clk, wr_rst,
q, rd, fifo_empty, rd_clk, rd_rst
);
565,35 → 509,25
 
wire [addr_width:1] wadr, wadr_bin, radr, radr_bin;
 
`define MODULE cnt_gray_ce_bin
`BASE`MODULE
vl_cnt_gray_ce_bin
# ( .length(addr_width))
fifo_wr_adr( .cke(wr), .q(wadr), .q_bin(wadr_bin), .rst(wr_rst), .clk(wr_clk));
`BASE`MODULE
vl_cnt_gray_ce_bin
# (.length(addr_width))
fifo_rd_adr( .cke(rd), .q(radr), .q_bin(radr_bin), .rst(rd_rst), .clk(rd_clk));
`undef MODULE
 
`define MODULE dpram_1r1w
`BASE`MODULE
vl_dpram_1r1w
# (.data_width(data_width), .addr_width(addr_width))
dpram ( .d_a(d), .adr_a(wadr_bin), .we_a(wr), .clk_a(wr_clk), .q_b(q), .adr_b(radr_bin), .clk_b(rd_clk));
`undef MODULE
 
`define MODULE fifo_cmp_async
`BASE`MODULE
vl_fifo_cmp_async
# (.addr_width(addr_width))
cmp ( .wptr(wadr), .rptr(radr), .fifo_empty(fifo_empty), .fifo_full(fifo_full), .wclk(wr_clk), .rclk(rd_clk), .rst(wr_rst) );
`undef MODULE
 
endmodule
`endif
 
`ifdef FIFO_2R2W_ASYNC
`define MODULE fifo_2r2w_async
module `BASE`MODULE (
`undef MODULE
module vl_fifo_2r2w_async (
// a side
a_d, a_wr, a_fifo_full,
a_q, a_rd, a_fifo_empty,
627,27 → 561,21
input b_clk;
input b_rst;
 
`define MODULE fifo_1r1w_async
`BASE`MODULE # (.data_width(data_width), .addr_width(addr_width))
vl_fifo_1r1w_async # (.data_width(data_width), .addr_width(addr_width))
vl_fifo_1r1w_async_a (
.d(a_d), .wr(a_wr), .fifo_full(a_fifo_full), .wr_clk(a_clk), .wr_rst(a_rst),
.q(b_q), .rd(b_rd), .fifo_empty(b_fifo_empty), .rd_clk(b_clk), .rd_rst(b_rst)
);
 
`BASE`MODULE # (.data_width(data_width), .addr_width(addr_width))
vl_fifo_1r1w_async # (.data_width(data_width), .addr_width(addr_width))
vl_fifo_1r1w_async_b (
.d(b_d), .wr(b_wr), .fifo_full(b_fifo_full), .wr_clk(b_clk), .wr_rst(b_rst),
.q(a_q), .rd(a_rd), .fifo_empty(a_fifo_empty), .rd_clk(a_clk), .rd_rst(a_rst)
);
`undef MODULE
 
endmodule
`endif
 
`ifdef FIFO_2R2W_ASYNC_SIMPLEX
`define MODULE fifo_2r2w_async_simplex
module `BASE`MODULE (
`undef MODULE
module vl_fifo_2r2w_async_simplex (
// a side
a_d, a_wr, a_fifo_full,
a_q, a_rd, a_fifo_empty,
687,44 → 615,37
// dpram
wire [addr_width:0] a_dpram_adr, b_dpram_adr;
 
`define MODULE cnt_gray_ce_bin
`BASE`MODULE
vl_cnt_gray_ce_bin
# ( .length(addr_width))
fifo_a_wr_adr( .cke(a_wr), .q(a_wadr), .q_bin(a_wadr_bin), .rst(a_rst), .clk(a_clk));
`BASE`MODULE
vl_cnt_gray_ce_bin
# (.length(addr_width))
fifo_a_rd_adr( .cke(a_rd), .q(a_radr), .q_bin(a_radr_bin), .rst(a_rst), .clk(a_clk));
 
`BASE`MODULE
vl_cnt_gray_ce_bin
# ( .length(addr_width))
fifo_b_wr_adr( .cke(b_wr), .q(b_wadr), .q_bin(b_wadr_bin), .rst(b_rst), .clk(b_clk));
`BASE`MODULE
vl_cnt_gray_ce_bin
# (.length(addr_width))
fifo_b_rd_adr( .cke(b_rd), .q(b_radr), .q_bin(b_radr_bin), .rst(b_rst), .clk(b_clk));
`undef MODULE
 
// mux read or write adr to DPRAM
assign a_dpram_adr = (a_wr) ? {1'b0,a_wadr_bin} : {1'b1,a_radr_bin};
assign b_dpram_adr = (b_wr) ? {1'b1,b_wadr_bin} : {1'b0,b_radr_bin};
 
`define MODULE dpram_2r2w
`BASE`MODULE
vl_dpram_2r2w
# (.data_width(data_width), .addr_width(addr_width+1))
dpram ( .d_a(a_d), .q_a(a_q), .adr_a(a_dpram_adr), .we_a(a_wr), .clk_a(a_clk),
.d_b(b_d), .q_b(b_q), .adr_b(b_dpram_adr), .we_b(b_wr), .clk_b(b_clk));
`undef MODULE
 
`define MODULE fifo_cmp_async
`BASE`MODULE
vl_fifo_cmp_async
# (.addr_width(addr_width))
cmp1 ( .wptr(a_wadr), .rptr(b_radr), .fifo_empty(b_fifo_empty), .fifo_full(a_fifo_full), .wclk(a_clk), .rclk(b_clk), .rst(a_rst) );
 
`BASE`MODULE
vl_fifo_cmp_async
# (.addr_width(addr_width))
cmp2 ( .wptr(b_wadr), .rptr(a_radr), .fifo_empty(a_fifo_empty), .fifo_full(b_fifo_full), .wclk(b_clk), .rclk(a_clk), .rst(b_rst) );
`undef MODULE
 
endmodule
`endif
/cnt_bin_ce_clear_l1_l2.csv
1,5 → 1,5
Name,type,,,,
cnt_bin_ce_clear_l1_l2,binary,,,,
vl_cnt_bin_ce_clear_l1_l2,binary,,,,
,,,,,
clear,set,cke,rew,,
1,0,1,0,,
/registers.v
40,10 → 40,8
//// ////
//////////////////////////////////////////////////////////////////////
 
`ifdef DFF
`define MODULE dff
module `BASE`MODULE ( d, q, clk, rst);
`undef MODULE
module vl_dff ( d, q, clk, rst);
 
parameter width = 1;
parameter reset_value = 0;
 
58,12 → 56,8
q <= d;
 
endmodule
`endif
 
`ifdef DFF_ARRAY
`define MODULE dff_array
module `BASE`MODULE ( d, q, clk, rst);
`undef MODULE
module vl_dff_array ( d, q, clk, rst);
 
parameter width = 1;
parameter depth = 2;
87,12 → 81,8
assign q = q_tmp[depth-1];
endmodule
`endif
 
`ifdef DFF_CE
`define MODULE dff_ce
module `BASE`MODULE ( d, ce, q, clk, rst);
`undef MODULE
module vl_dff_ce ( d, ce, q, clk, rst);
 
parameter width = 1;
parameter reset_value = 0;
109,12 → 99,8
q <= d;
 
endmodule
`endif
 
`ifdef DFF_CE_CLEAR
`define MODULE dff_ce_clear
module `BASE`MODULE ( d, ce, clear, q, clk, rst);
`undef MODULE
module vl_dff_ce_clear ( d, ce, clear, q, clk, rst);
 
parameter width = 1;
parameter reset_value = 0;
134,12 → 120,8
q <= d;
 
endmodule
`endif
 
`ifdef DF_CE_SET
`define MODULE dff_ce_set
module `BASE`MODULE ( d, ce, set, q, clk, rst);
`undef MODULE
module vl_dff_ce_set ( d, ce, set, q, clk, rst);
 
parameter width = 1;
parameter reset_value = 0;
159,13 → 141,9
q <= d;
 
endmodule
`endif
 
`ifdef SPR
`define MODULE spr
module `BASE`MODULE ( sp, r, q, clk, rst);
`undef MODULE
 
module vl_spr ( sp, r, q, clk, rst);
parameter width = 1;
parameter reset_value = 0;
183,13 → 161,9
q <= 1'b0;
 
endmodule
`endif
 
`ifdef SRP
`define MODULE srp
module `BASE`MODULE ( s, rp, q, clk, rst);
`undef MODULE
 
module vl_srp ( s, rp, q, clk, rst);
parameter width = 1;
parameter reset_value = 0;
207,11 → 181,9
q <= 1'b1;
 
endmodule
`endif
 
 
`ifdef ALTERA
 
`ifdef DFF_SR
// megafunction wizard: %LPM_FF%
// GENERATION: STANDARD
// VERSION: WM1.0
250,10 → 222,7
// synopsys translate_off
`timescale 1 ps / 1 ps
// synopsys translate_on
`define MODULE dff_sr
module `BASE`MODULE (
`undef MODULE
 
module vl_dff_sr (
aclr,
aset,
clock,
333,15 → 302,13
// Retrieval info: GEN_FILE: TYPE_NORMAL dff_sr_inst.v FALSE
// Retrieval info: GEN_FILE: TYPE_NORMAL dff_sr_bb.v FALSE
// Retrieval info: LIB_FILE: lpm
`endif
 
 
`else
 
`ifdef DFF_SR
`define MODULE dff_sr
module `BASE`MODULE ( aclr, aset, clock, data, q);
`undef MODULE
 
module vl_dff_sr ( aclr, aset, clock, data, q);
 
input aclr;
input aset;
input clock;
357,7 → 324,6
q <= data;
 
endmodule
`endif
 
`endif
 
364,24 → 330,14
// LATCH
// For targtes not supporting LATCH use dff_sr with clk=1 and data=1
`ifdef ALTERA
 
`ifdef LATCH
`define MODULE latch
module `BASE`MODULE ( d, le, q, clk);
`undef MODULE
module vl_latch ( d, le, q, clk);
input d, le;
output q;
input clk;
dff_sr i0 (.aclr(), .aset(), .clock(1'b1), .data(1'b1), .q(q));
endmodule
`endif
 
`else
 
`ifdef LATCH
`define MODULE latch
module `BASE`MODULE ( d, le, q, clk);
`undef MODULE
module latch ( d, le, q, clk);
input d, le;
output q;
input clk;/*
393,13 → 349,7
endmodule
`endif
 
`endif
 
`ifdef SHREG
`define MODULE shreg
module `BASE`MODULE ( d, q, clk, rst);
`undef MODULE
 
module vl_shreg ( d, q, clk, rst);
parameter depth = 10;
input d;
output q;
414,12 → 364,8
dffs <= {d,dffs[1:depth-1]};
assign q = dffs[depth];
endmodule
`endif
 
`ifdef SHREG_CE
`define MODULE shreg_ce
module `BASE`MODULE ( d, ce, q, clk, rst);
`undef MODULE
module vl_shreg_ce ( d, ce, q, clk, rst);
parameter depth = 10;
input d, ce;
output q;
435,12 → 381,8
dffs <= {d,dffs[1:depth-1]};
assign q = dffs[depth];
endmodule
`endif
 
`ifdef DELAY
`define MODULE delay
module `BASE`MODULE ( d, q, clk, rst);
`undef MODULE
module vl_delay ( d, q, clk, rst);
parameter depth = 10;
input d;
output q;
455,12 → 397,8
dffs <= {d,dffs[1:depth-1]};
assign q = dffs[depth];
endmodule
`endif
 
`ifdef DELAY_EMPTYFLAG
`define MODULE delay_emptyflag
module vl_delay_emptyflag ( d, q, emptyflag, clk, rst);
`undef MODULE
parameter depth = 10;
input d;
output q, emptyflag;
476,4 → 414,3
assign q = dffs[depth];
assign emptyflag = !(|dffs);
endmodule
`endif
/cnt_lfsr_ce_q.csv
1,5 → 1,5
Name,type,,,,
cnt_lfsr_ce_q,LFSR,,,,
vl_cnt_lfsr_ce_q,LFSR,,,,
,,,,,
clear,set,cke,rew,,
0,0,1,0,,
/cnt_lfsr_ce_clear_q.csv
1,5 → 1,5
Name,type,,,,
cnt_lfsr_ce_clear_q,LFSR,,,,
vl_cnt_lfsr_ce_clear_q,LFSR,,,,
,,,,,
clear,set,cke,rew,,
1,0,1,0,,
/cnt_bin_ce_rew_q_zq_l1.csv
1,5 → 1,5
Name,type,,,,
cnt_bin_ce_rew_q_zq_l1,binary,,,,
vl_cnt_bin_ce_rew_q_zq_l1,binary,,,,
,,,,,
clear,set,cke,rew,,
0,0,1,1,,
/cnt_bin_ce_rew_zq_l1.csv
1,5 → 1,5
Name,type,,,,
cnt_bin_ce_rew_zq_l1,binary,,,,
vl_cnt_bin_ce_rew_zq_l1,binary,,,,
,,,,,
clear,set,cke,rew,,
0,0,1,1,,
/cnt_bin.csv
1,5 → 1,5
Name,type,,,,
cnt_bin,binary,,,,
vl_cnt_bin,binary,,,,
,,,,,
clear,set,cke,rew,,
0,0,0,0,,
/cnt_bin_clear.csv
1,5 → 1,5
Name,type,,,,
cnt_bin_clear,binary,,,,
vl_cnt_bin_clear,binary,,,,
,,,,,
clear,set,cke,rew,,
1,0,0,0,,
/cnt_bin_ce_clear.csv
1,5 → 1,5
Name,type,,,,
cnt_bin_ce_clear,binary,,,,
vl_cnt_bin_ce_clear,binary,,,,
,,,,,
clear,set,cke,rew,,
1,0,1,0,,
/cnt_lfsr_ce_rew_l1.csv
1,5 → 1,5
Name,type,,,,
cnt_lfsr_ce_rew_l1,LFSR,,,,
vl_cnt_lfsr_ce_rew_l1,LFSR,,,,
,,,,,
clear,set,cke,rew,,
0,0,1,1,,
/cnt_lfsr_ce_zq.csv
1,5 → 1,5
Name,type,,,,
cnt_lfsr_ce_zq,LFSR,,,,
vl_cnt_lfsr_ce_zq,LFSR,,,,
,,,,,
clear,set,cke,rew,,
0,0,1,0,,
/cnt_bin_ce_rew_l1.csv
1,5 → 1,5
Name,type,,,,
cnt_bin_ce_rew_l1,binary,,,,
vl_cnt_bin_ce_rew_l1,binary,,,,
,,,,,
clear,set,cke,rew,,
0,0,1,1,,
/cnt_gray_ce_bin.csv
1,5 → 1,5
Name,type,,,,
cnt_gray_ce_bin,GRAY,,,,
vl_cnt_gray_ce_bin,GRAY,,,,
,,,,,
clear,set,cke,rew,,
0,0,1,0,,
/cnt_gray.csv
1,5 → 1,5
Name,type,,,,
cnt_gray,GRAY,,,,
vl_cnt_gray,GRAY,,,,
,,,,,
clear,set,cke,rew,,
0,0,0,0,,
/cnt_lfsr.csv
1,5 → 1,5
Name,type,,,,
cnt_lfsr,LFSR,,,,
vl_cnt_lfsr,LFSR,,,,
,,,,,
clear,set,cke,rew,,
0,0,0,0,,
/counters.v
40,10 → 40,7
//// ////
//////////////////////////////////////////////////////////////////////
 
`ifdef CNT_SHREG_WRAP
`define MODULE cnt_shreg_wrap
module `BASE`MODULE ( q, rst, clk);
`undef MODULE
module vl_cnt_shreg_wrap ( q, rst, clk);
 
parameter length = 4;
output reg [0:length-1] q;
57,12 → 54,8
q <= {q[length-1],q[0:length-2]};
endmodule
`endif
 
`ifdef CNT_SHREG_CE_WRAP
`define MODULE cnt_shreg_ce_wrap
module `BASE`MODULE ( cke, q, rst, clk);
`undef MODULE
module vl_cnt_shreg_ce_wrap ( cke, q, rst, clk);
 
parameter length = 4;
input cke;
78,12 → 71,8
q <= {q[length-1],q[0:length-2]};
endmodule
`endif
 
`ifdef CNT_SHREG_CE_CLEAR
`define MODULE cnt_shreg_ce_clear
module `BASE`MODULE ( cke, clear, q, rst, clk);
`undef MODULE
module vl_cnt_shreg_ce_clear ( cke, clear, q, rst, clk);
 
parameter length = 4;
input cke, clear;
102,12 → 91,8
q <= q >> 1;
endmodule
`endif
 
`ifdef CNT_SHREG_CE_CLEAR_WRAP
`define MODULE cnt_shreg_ce_clear_wrap
module `BASE`MODULE ( cke, clear, q, rst, clk);
`undef MODULE
module vl_cnt_shreg_ce_clear_wrap ( cke, clear, q, rst, clk);
 
parameter length = 4;
input cke, clear;
126,4 → 111,3
q <= {q[length-1],q[0:length-2]};
endmodule
`endif
/cnt_gray_ce.csv
1,5 → 1,5
Name,type,,,,
cnt_gray_ce,GRAY,,,,
vl_cnt_gray_ce,GRAY,,,,
,,,,,
clear,set,cke,rew,,
0,0,1,0,,
/cnt_lfsr_ce.csv
1,5 → 1,5
Name,type,,,,
cnt_lfsr_ce,LFSR,,,,
vl_cnt_lfsr_ce,LFSR,,,,
,,,,,
clear,set,cke,rew,,
0,0,1,0,,
/cnt_bin_ce_clear_set_rew.csv
1,5 → 1,5
Name,type,,,,
cnt_bin_ce_clear_set_rew,binary,,,,
vl_cnt_bin_ce_clear_set_rew,binary,,,,
,,,,,
clear,set,cke,rew,,
1,1,1,1,,
/arith.v
40,11 → 40,8
//// ////
//////////////////////////////////////////////////////////////////////
 
`ifdef MULTS
// signed multiplication
`define MODULE mults
module `BASE`MODULE (a,b,p);
`undef MODULE
module vl_mults (a,b,p);
parameter operand_a_width = 18;
parameter operand_b_width = 18;
parameter result_hi = 35;
62,11 → 59,8
assign p = result[result_hi:result_lo];
endmodule
`endif
`ifdef MULTS18X18
`define MODULE mults18x18
module `BASE`MODULE (a,b,p);
`undef MODULE
 
module vl_mults18x18 (a,b,p);
input [17:0] a,b;
output [35:0] p;
vl_mult
73,13 → 67,9
# (.operand_a_width(18), .operand_b_width(18))
mult0 (.a(a), .b(b), .p(p));
endmodule
`endif
 
`ifdef MULT
`define MODULE mult
// unsigned multiplication
module `BASE`MODULE (a,b,p);
`undef MODULE
module vl_mult (a,b,p);
parameter operand_a_width = 18;
parameter operand_b_width = 18;
parameter result_hi = 35;
94,10 → 84,7
assign p = result[result_hi:result_lo];
endmodule
`endif
 
`ifdef SHIFT_UNIT_32
`define MODULE shift_unit_32
// shift unit
// supporting the following shift functions
// SLL
104,8 → 91,7
// SRL
// SRA
`define SHIFT_UNIT_MULT # ( .operand_a_width(25), .operand_b_width(16), .result_hi(14), .result_lo(7))
module `BASE`MODULE( din, s, dout, opcode);
`undef MODULE
module vl_shift_unit_32( din, s, dout, opcode);
input [31:0] din; // data in operand
input [4:0] s; // shift operand
input [1:0] opcode;
146,12 → 132,11
assign sign[2] = sign[3] & (&din[31:24]);
assign sign[1] = sign[2] & (&din[23:16]);
assign sign[0] = sign[1] & (&din[15:8]);
`define MODULE mults
`BASE`MODULE `SHIFT_UNIT_MULT mult_byte3 ( .a({sign[3], {8{sign[3]}},din[31:24], din[23:16]}), .b({1'b0,s1}), .p(tmp[3]));
`BASE`MODULE `SHIFT_UNIT_MULT mult_byte2 ( .a({sign[2], din[31:24] ,din[23:16], din[15:8]}), .b({1'b0,s1}), .p(tmp[2]));
`BASE`MODULE `SHIFT_UNIT_MULT mult_byte1 ( .a({sign[1], din[23:16] ,din[15:8], din[7:0]}), .b({1'b0,s1}), .p(tmp[1]));
`BASE`MODULE `SHIFT_UNIT_MULT mult_byte0 ( .a({sign[0], din[15:8] ,din[7:0], 8'h00}), .b({1'b0,s1}), .p(tmp[0]));
`undef MODULE
vl_mults `SHIFT_UNIT_MULT mult_byte3 ( .a({sign[3], {8{sign[3]}},din[31:24], din[23:16]}), .b({1'b0,s1}), .p(tmp[3]));
vl_mults `SHIFT_UNIT_MULT mult_byte2 ( .a({sign[2], din[31:24] ,din[23:16], din[15:8]}), .b({1'b0,s1}), .p(tmp[2]));
vl_mults `SHIFT_UNIT_MULT mult_byte1 ( .a({sign[1], din[23:16] ,din[15:8], din[7:0]}), .b({1'b0,s1}), .p(tmp[1]));
vl_mults `SHIFT_UNIT_MULT mult_byte0 ( .a({sign[0], din[15:8] ,din[7:0], 8'h00}), .b({1'b0,s1}), .p(tmp[0]));
 
// second stage is multiplexer based
// shift on byte level
 
187,9 → 172,7
tmp[3];
 
endmodule
`endif
 
`ifdef LOGIC_UNIT
// logic unit
// supporting the following logic functions
// a and b
196,9 → 179,7
// a or b
// a xor b
// not b
`define MODULE logic_unit
module `BASE`MODULE( a, b, result, opcode);
`undef MODULE
module vl_logic_unit( a, b, result, opcode);
parameter width = 32;
parameter opcode_and = 2'b00;
parameter opcode_or = 2'b01;
228,4 → 209,3
assign ovfl = ( a[width-1] & b[width-1] & ~result[width-1]) |
(~a[width-1] & ~b[width-1] & result[width-1]);
endmodule
`endif
/cnt_bin_ce.csv
1,5 → 1,5
Name,type,,,,
cnt_bin_ce,binary,,,,
vl_cnt_bin_ce,binary,,,,
,,,,,
clear,set,cke,rew,,
0,0,1,0,,
/cnt_lfsr_zq.csv
1,5 → 1,5
Name,type,,,,
cnt_lfsr_zq,LFSR,,,,
vl_cnt_lfsr_zq,LFSR,,,,
,,,,,
clear,set,cke,rew,,
0,0,0,0,,

powered by: WebSVN 2.1.0

© copyright 1999-2024 OpenCores.org, equivalent to Oliscience, all rights reserved. OpenCores®, registered trademark.