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[/] [versatile_library/] [trunk/] [rtl/] [verilog/] [memories.v] - Diff between revs 5 and 7

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Line 40... Line 40...
////                                                              ////
////                                                              ////
//////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////
 
 
/// ROM
/// ROM
 
 
module vl_rom ( a, q, clk);
module vl_rom_init ( adr, q, clk);
 
   parameter data_width = 32;
 
   parameter addr_width = 8;
 
   input [(addr_width-1):0]       adr;
 
   output reg [(data_width-1):0] q;
 
   input                         clk;
 
   reg [data_width-1:0] rom [(1<<addr_width)-1:0];
 
   parameter memory_file = "vl_rom.vmem";
 
   initial
 
     begin
 
        $readmemh(memory_file, rom);
 
     end
 
 
 
   always @ (posedge clk)
 
     q <= rom[adr];
 
 
 
endmodule
 
 
 
module vl_rom ( adr, q, clk);
 
 
parameter data_width = 32;
parameter data_width = 32;
parameter addr_width = 4;
parameter addr_width = 4;
 
 
parameter [0:1>>addr_width-1] data [data_width-1:0] = {
parameter [0:1>>addr_width-1] data [data_width-1:0] = {
Line 63... Line 81...
    {32'h15000000},
    {32'h15000000},
    {32'h15000000},
    {32'h15000000},
    {32'h15000000},
    {32'h15000000},
    {32'h15000000}};
    {32'h15000000}};
 
 
input [addr_width-1:0] a;
input [addr_width-1:0] adr;
output reg [data_width-1:0] q;
output reg [data_width-1:0] q;
input clk;
input clk;
 
 
always @ (posedge clk)
always @ (posedge clk)
    q <= data[a];
    q <= data[adr];
 
 
endmodule
endmodule
 
 
// Single port RAM
// Single port RAM
 
 
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   input [(addr_width-1):0]       adr;
   input [(addr_width-1):0]       adr;
   input                         we;
   input                         we;
   output reg [(data_width-1):0]          q;
   output reg [(data_width-1):0]          q;
   input                         clk;
   input                         clk;
   reg [data_width-1:0] ram [(1<<addr_width)-1:0];
   reg [data_width-1:0] ram [(1<<addr_width)-1:0];
 
   parameter init = 0;
 
   parameter memory_file = "vl_ram.vmem";
 
   generate if (init) begin : init_mem
 
   initial
 
     begin
 
        $readmemh(memory_file, ram);
 
     end
 
   end
 
   endgenerate
 
 
   always @ (posedge clk)
   always @ (posedge clk)
   begin
   begin
   if (we)
   if (we)
     ram[adr] <= d;
     ram[adr] <= d;
   q <= ram[adr];
   q <= ram[adr];
   end
   end
 
 
endmodule
endmodule
 
 
 
module vl_ram_be ( d, adr, be, we, q, clk);
 
   parameter data_width = 32;
 
   parameter addr_width = 8;
 
   input [(data_width-1):0]      d;
 
   input [(addr_width-1):0]       adr;
 
   input [(addr_width/4)-1:0]    be;
 
   input                         we;
 
   output reg [(data_width-1):0] q;
 
   input                         clk;
 
 
 
   reg [data_width-1:0] ram [(1<<addr_width)-1:0];
 
 
 
   parameter init = 0;
 
   parameter memory_file = "vl_ram.vmem";
 
   generate if (init) begin : init_mem
 
   initial
 
     begin
 
        $readmemh(memory_file, ram);
 
     end
 
   end
 
   endgenerate
 
 
 
   genvar i;
 
   generate for (i=0;i<addr_width/4;i=i+1) begin : be_ram
 
      always @ (posedge clk)
 
      if (we & be[i])
 
        ram[adr][(i+1)*8-1:i*8] <= d[(i+1)*8-1:i*8];
 
   end
 
   endgenerate
 
 
 
   always @ (posedge clk)
 
      q <= ram[adr];
 
 
 
endmodule
 
 
 
 
// Dual port RAM
// Dual port RAM
 
 
// ACTEL FPGA should not use logic to handle rw collision
// ACTEL FPGA should not use logic to handle rw collision
`ifdef ACTEL
`ifdef ACTEL
        `define SYN /*synthesis syn_ramstyle = "no_rw_check"*/
        `define SYN /*synthesis syn_ramstyle = "no_rw_check"*/
`else
`else
        `define SYN
        `define SYN
`endif
`endif
 
 
module vl_dual_port_ram_1r1w ( d_a, adr_a, we_a, clk_a, q_b, adr_b, clk_b );
module vl_dpram_1r1w ( d_a, adr_a, we_a, clk_a, q_b, adr_b, clk_b );
   parameter data_width = 32;
   parameter data_width = 32;
   parameter addr_width = 8;
   parameter addr_width = 8;
   input [(data_width-1):0]      d_a;
   input [(data_width-1):0]      d_a;
   input [(addr_width-1):0]       adr_a;
   input [(addr_width-1):0]       adr_a;
   input [(addr_width-1):0]       adr_b;
   input [(addr_width-1):0]       adr_b;
   input                         we_a;
   input                         we_a;
   output [(data_width-1):0]      q_b;
   output [(data_width-1):0]      q_b;
   input                         clk_a, clk_b;
   input                         clk_a, clk_b;
   reg [(addr_width-1):0]         adr_b_reg;
   reg [(addr_width-1):0]         adr_b_reg;
   reg [data_width-1:0] ram [(1<<addr_width)-1:0] `SYN;
   reg [data_width-1:0] ram [(1<<addr_width)-1:0] `SYN;
 
 
 
   parameter init = 0;
 
   parameter memory_file = "vl_ram.vmem";
 
   generate if (init) begin : init_mem
 
   initial
 
     begin
 
        $readmemh(memory_file, ram);
 
     end
 
   end
 
   endgenerate
 
 
   always @ (posedge clk_a)
   always @ (posedge clk_a)
   if (we_a)
   if (we_a)
     ram[adr_a] <= d_a;
     ram[adr_a] <= d_a;
   always @ (posedge clk_b)
   always @ (posedge clk_b)
   adr_b_reg <= adr_b;
   adr_b_reg <= adr_b;
   assign q_b = ram[adr_b_reg];
   assign q_b = ram[adr_b_reg];
endmodule
endmodule
 
 
module vl_dual_port_ram_2r1w ( d_a, q_a, adr_a, we_a, clk_a, q_b, adr_b, clk_b );
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 data_width = 32;
   parameter addr_width = 8;
   parameter addr_width = 8;
   input [(data_width-1):0]      d_a;
   input [(data_width-1):0]      d_a;
   input [(addr_width-1):0]       adr_a;
   input [(addr_width-1):0]       adr_a;
   input [(addr_width-1):0]       adr_b;
   input [(addr_width-1):0]       adr_b;
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   output [(data_width-1):0]      q_b;
   output [(data_width-1):0]      q_b;
   output reg [(data_width-1):0] q_a;
   output reg [(data_width-1):0] q_a;
   input                         clk_a, clk_b;
   input                         clk_a, clk_b;
   reg [(data_width-1):0]         q_b;
   reg [(data_width-1):0]         q_b;
   reg [data_width-1:0] ram [(1<<addr_width)-1:0] `SYN;
   reg [data_width-1:0] ram [(1<<addr_width)-1:0] `SYN;
 
 
 
   parameter init = 0;
 
   parameter memory_file = "vl_ram.vmem";
 
   generate if (init) begin : init_mem
 
   initial
 
     begin
 
        $readmemh(memory_file, ram);
 
     end
 
   end
 
   endgenerate
 
 
   always @ (posedge clk_a)
   always @ (posedge clk_a)
     begin
     begin
        q_a <= ram[adr_a];
        q_a <= ram[adr_a];
        if (we_a)
        if (we_a)
             ram[adr_a] <= d_a;
             ram[adr_a] <= d_a;
     end
     end
   always @ (posedge clk_b)
   always @ (posedge clk_b)
          q_b <= ram[adr_b];
          q_b <= ram[adr_b];
endmodule
endmodule
 
 
module vl_dual_port_ram_2r2w ( d_a, q_a, adr_a, we_a, clk_a, q_b, adr_b, d_b, we_b, clk_b );
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 data_width = 32;
   parameter addr_width = 8;
   parameter addr_width = 8;
   input [(data_width-1):0]      d_a;
   input [(data_width-1):0]      d_a;
   input [(addr_width-1):0]       adr_a;
   input [(addr_width-1):0]       adr_a;
   input [(addr_width-1):0]       adr_b;
   input [(addr_width-1):0]       adr_b;
Line 156... Line 242...
   output reg [(data_width-1):0] q_a;
   output reg [(data_width-1):0] q_a;
   input                         we_b;
   input                         we_b;
   input                         clk_a, clk_b;
   input                         clk_a, clk_b;
   reg [(data_width-1):0]         q_b;
   reg [(data_width-1):0]         q_b;
   reg [data_width-1:0] ram [(1<<addr_width)-1:0] `SYN;
   reg [data_width-1:0] ram [(1<<addr_width)-1:0] `SYN;
 
 
 
   parameter init = 0;
 
   parameter memory_file = "vl_ram.vmem";
 
   generate if (init) begin : init_mem
 
   initial
 
     begin
 
        $readmemh(memory_file, ram);
 
     end
 
   end
 
   endgenerate
 
 
   always @ (posedge clk_a)
   always @ (posedge clk_a)
     begin
     begin
        q_a <= ram[adr_a];
        q_a <= ram[adr_a];
        if (we_a)
        if (we_a)
             ram[adr_a] <= d_a;
             ram[adr_a] <= d_a;
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vl_fifo_1r1w_async (
vl_fifo_1r1w_async (
    d, wr, fifo_full, wr_clk, wr_rst,
    d, wr, fifo_full, wr_clk, wr_rst,
    q, rd, fifo_empty, rd_clk, rd_rst
    q, rd, fifo_empty, rd_clk, rd_rst
    );
    );
 
 
adr_gen
cnt_gray_ce_bin
    # ( .length(addr_width))
    # ( .length(addr_width))
    fifo_wr_adr( .cke(wr), .q(wadr), .q_bin(wadr_bin), .rst(wr_rst), .clk(wr_clk));
    fifo_wr_adr( .cke(wr), .q(wadr), .q_bin(wadr_bin), .rst(wr_rst), .clk(wr_clk));
 
 
adr_gen
cnt_gray_ce_bin
    # (.length(addr_width))
    # (.length(addr_width))
    fifo_rd_adr( .cke(wr), .q(radr), .q_bin(radr_bin), .rst(rd_rst), .clk(rd_rst));
    fifo_rd_adr( .cke(wr), .q(radr), .q_bin(radr_bin), .rst(rd_rst), .clk(rd_rst));
 
 
vl_dual_port_ram_1r1w
vl_dpram_1r1w
    # (.data_width(data_width), .addr_width(addr_width))
    # (.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));
    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));
 
 
vl_fifo_cmp_async
vl_fifo_cmp_async
    # (.addr_width(addr_width))
    # (.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) );
    cmp ( .wptr(wadr), .rptr(radr), .fifo_empty(fifo_empty), .fifo_full(fifo_full), .wclk(wr_clk), .rclk(rd_clk), .rst(wr_rst) );
 
 
endmodule
endmodule
 
 
module vl_fifo_2r2w (
module vl_fifo_2r2w_async (
    // a side
    // a side
    a_d, a_wr, a_fifo_full,
    a_d, a_wr, a_fifo_full,
    a_q, a_rd, a_fifo_empty,
    a_q, a_rd, a_fifo_empty,
    a_clk, a_rst,
    a_clk, a_rst,
    // b side
    // b side
Line 356... Line 453...
    .q(a_q), .rd(a_rd), .fifo_empty(a_fifo_empty), .rd_clk(a_clk), .rd_rst(a_rst)
    .q(a_q), .rd(a_rd), .fifo_empty(a_fifo_empty), .rd_clk(a_clk), .rd_rst(a_rst)
    );
    );
 
 
endmodule
endmodule
 
 
module vl_fifo_2r2w_simplex (
module vl_fifo_2r2w_async_simplex (
    // a side
    // a side
    a_d, a_wr, a_fifo_full,
    a_d, a_wr, a_fifo_full,
    a_q, a_rd, a_fifo_empty,
    a_q, a_rd, a_fifo_empty,
    a_clk, a_rst,
    a_clk, a_rst,
    // b side
    // b side
Line 396... Line 493...
wire [addr_width:1] a_wadr, a_wadr_bin, a_radr, a_radr_bin;
wire [addr_width:1] a_wadr, a_wadr_bin, a_radr, a_radr_bin;
wire [addr_width:1] b_wadr, b_wadr_bin, b_radr, b_radr_bin;
wire [addr_width:1] b_wadr, b_wadr_bin, b_radr, b_radr_bin;
// dpram
// dpram
wire [addr_width:0] a_dpram_adr, b_dpram_adr;
wire [addr_width:0] a_dpram_adr, b_dpram_adr;
 
 
adr_gen
cnt_gray_ce_bin
    # ( .length(addr_width))
    # ( .length(addr_width))
    fifo_a_wr_adr( .cke(a_wr), .q(a_wadr), .q_bin(a_wadr_bin), .rst(a_rst), .clk(a_clk));
    fifo_a_wr_adr( .cke(a_wr), .q(a_wadr), .q_bin(a_wadr_bin), .rst(a_rst), .clk(a_clk));
 
 
adr_gen
cnt_gray_ce_bin
    # (.length(addr_width))
    # (.length(addr_width))
    fifo_a_rd_adr( .cke(a_rd), .q(a_radr), .q_bin(a_radr_bin), .rst(a_rst), .clk(a_clk));
    fifo_a_rd_adr( .cke(a_rd), .q(a_radr), .q_bin(a_radr_bin), .rst(a_rst), .clk(a_clk));
 
 
adr_gen
cnt_gray_ce_bin
    # ( .length(addr_width))
    # ( .length(addr_width))
    fifo_b_wr_adr( .cke(b_wr), .q(b_wadr), .q_bin(b_wadr_bin), .rst(b_rst), .clk(b_clk));
    fifo_b_wr_adr( .cke(b_wr), .q(b_wadr), .q_bin(b_wadr_bin), .rst(b_rst), .clk(b_clk));
 
 
adr_gen
cnt_gray_ce_bin
    # (.length(addr_width))
    # (.length(addr_width))
    fifo_b_rd_adr( .cke(b_rd), .q(b_radr), .q_bin(b_radr_bin), .rst(b_rst), .clk(b_clk));
    fifo_b_rd_adr( .cke(b_rd), .q(b_radr), .q_bin(b_radr_bin), .rst(b_rst), .clk(b_clk));
 
 
// mux read or write adr to DPRAM
// mux read or write adr to DPRAM
assign a_dpram_adr = (a_wr) ? {1'b0,a_wadr_bin} : {1'b1,a_radr_bin};
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};
assign b_dpram_adr = (b_wr) ? {1'b1,b_wadr_bin} : {1'b0,b_radr_bin};
 
 
vfifo_dual_port_ram_dc_dw
vl_dp_ram_2r2w
    # (.data_width(data_width), .addr_width(addr_width+1))
    # (.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),
    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));
            .d_b(b_d), .q_b(b_q), .adr_b(b_dpram_adr), .we_b(b_wr), .clk_b(b_clk));
 
 
vl_fifo_async_cmp
vl_fifo_async_cmp
    # (.addr_width(addr_width))
    # (.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) );
    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) );
 
 
versatile_fifo_async_cmp
vl_fifo_async_cmp
    # (.addr_width(addr_width))
    # (.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) );
    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) );
 
 
endmodule
endmodule
 
 
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