Subversion Repositories srdydrdy_lib

`timescale 1ns/1ns

module sb_bench;

  localparam width = 32;

  localparam items = 32;

  localparam use_txid = 1;

  localparam use_mask = 1;

  localparam asz=$clog2(items);

  localparam txid_sz = asz;

  reg clk, reset;

  initial

    begin

      clk = 0;

      forever #5 clk = ~clk;

    end

  /*AUTOWIRE*/

  // Beginning of automatic wires (for undeclared instantiated-module outputs)

  wire [width-1:0]       c_data;                 // From driver of sb_driver.v

  wire                  c_drdy;                 // From sboard of sd_scoreboard.v

  wire [asz-1:0] c_itemid;               // From driver of sb_driver.v

  wire [width-1:0]       c_mask;                 // From driver of sb_driver.v

  wire                  c_req_type;             // From driver of sb_driver.v

  wire                  c_srdy;                 // From driver of sb_driver.v

  wire [txid_sz-1:0]     c_txid;                 // From driver of sb_driver.v

  wire [width-1:0]       p_data;                 // From sboard of sd_scoreboard.v

  wire                  p_drdy;                 // From monitor of sb_monitor.v

  wire                  p_srdy;                 // From sboard of sd_scoreboard.v

  wire [txid_sz-1:0]     p_txid;                 // From sboard of sd_scoreboard.v

  // End of automatics

/* sb_driver AUTO_TEMPLATE

 (

 .p_\(.*\)   (c_\1[]),

 );

 */

  sb_driver #(/*AUTOINSTPARAM*/

              // Parameters

              .width                    (width),

              .items                    (items),

              .use_txid                 (use_txid),

              .use_mask                 (use_mask),

              .txid_sz                  (txid_sz),

              .asz                      (asz)) driver

    (/*AUTOINST*/

     // Outputs

     .p_srdy                            (c_srdy),                // Templated

     .p_req_type                        (c_req_type),            // Templated

     .p_txid                            (c_txid[txid_sz-1:0]),    // Templated

     .p_mask                            (c_mask[width-1:0]),      // Templated

     .p_itemid                          (c_itemid[asz-1:0]),      // Templated

     .p_data                            (c_data[width-1:0]),      // Templated

     // Inputs

     .clk                               (clk),

     .reset                             (reset),

     .p_drdy                            (c_drdy));               // Templated

/* sd_scoreboard AUTO_TEMPLATE

 (

 );

 */

  sd_scoreboard #(

                  // Parameters

                  .width                (width),

                  .items                (items),

                  .use_txid             (use_txid),

                  .use_mask             (use_mask),

                  .txid_sz              (txid_sz)) sboard

    (/*AUTOINST*/

     // Outputs

     .c_drdy                            (c_drdy),

     .p_srdy                            (p_srdy),

     .p_txid                            (p_txid[txid_sz-1:0]),

     .p_data                            (p_data[width-1:0]),

     // Inputs

     .clk                               (clk),

     .reset                             (reset),

     .c_srdy                            (c_srdy),

     .c_req_type                        (c_req_type),

     .c_txid                            (c_txid[txid_sz-1:0]),

     .c_mask                            (c_mask[width-1:0]),

     .c_data                            (c_data[width-1:0]),

     .c_itemid                          (c_itemid[asz-1:0]),

     .p_drdy                            (p_drdy));

  sb_monitor #(/*AUTOINSTPARAM*/

               // Parameters

               .width                   (width),

               .items                   (items),

               .use_txid                (use_txid),

               .use_mask                (use_mask),

               .txid_sz                 (txid_sz),

               .asz                     (asz)) monitor

    (/*AUTOINST*/

     // Outputs

     .p_drdy                            (p_drdy),

     // Inputs

     .clk                               (clk),

     .reset                             (reset),

     .c_srdy                            (c_srdy),

     .c_drdy                            (c_drdy),

     .c_req_type                        (c_req_type),

     .c_txid                            (c_txid[txid_sz-1:0]),

     .c_mask                            (c_mask[width-1:0]),

     .c_data                            (c_data[width-1:0]),

     .c_itemid                          (c_itemid[asz-1:0]),

     .p_srdy                            (p_srdy),

     .p_txid                            (p_txid[txid_sz-1:0]),

     .p_data                            (p_data[width-1:0]));

/* -----\/----- EXCLUDED -----\/-----

  task send;

    input req_type;

    input [txid_sz-1:0] txid;

    input [width-1:0]   mask;

    input [width-1:0]   data;

    input [asz-1:0]     itemid;

 -----/\----- EXCLUDED -----/\----- */

  integer               i, entry;

  integer               op;

  initial

    begin

`ifdef VCS

      $vcdpluson;

`else

      $dumpfile ("sb.lxt");

      $dumpvars;

`endif

      reset = 1;

      #200;

      reset = 0;

      repeat (5) @(posedge clk);

      // fill up scoreboard with random data

      for (i=0; i<items; i=i+1)

        begin

          driver.send (1, {width{1'b1}}, $random, i);

        end

      // request random entries from scoreboard

      for (i=0; i<64; i=i+1)

        begin

          entry = {$random} % items;

          driver.send (0, 0, 0, entry);

        end

      // mix updates with requests

      for (i=0; i<4096; i=i+1)

        begin

          // choose random entry but space requests apart

          //entry = {$random} % items;

          case (i%2)

            1 : entry = {$random} % (items/2) + items/2;

            //2 : entry = {$random} % (items/4) + 2*(items/4);

            //3 : entry = {$random} % (items/4) + 3*(items/4);

          endcase

          op = {$random} % 8;

          case (i)

            512  : monitor.drdy_pat = 8'h55;

            1024 : monitor.drdy_pat = 8'h0F;

            1500 : monitor.drdy_pat = 8'h82;

            2000 : monitor.drdy_pat = 8'hFE;

          endcase

          if (op == 0)

            driver.send (1, {width{1'b1}}, $random, entry);

          else if (op == 1)

            driver.send (1, 32'h0000FFFF, $random, entry);

          else if (op == 2)

            driver.send (1, $random, $random, entry);

          else

            driver.send (0, 0, 0, entry);

        end

      #500;

      $finish;

    end

endmodule // sb_bench

// Local Variables:

// verilog-library-directories:("." "../../../rtl/verilog/utility")

// End: