Subversion Repositories qaz_libs

//////////////////////////////////////////////////////////////////////
////                                                              ////
//// Copyright (C) 2018 Authors and OPENCORES.ORG                 ////
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//// 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. ////
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//// 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.                                               ////
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//// 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.                                                     ////
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//// Public License along with this source; if not, download it   ////
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//////////////////////////////////////////////////////////////////////

class s_debug
  extends uvm_sequence #(fifo_sequence_item);
  `uvm_object_utils(s_debug)

  // --------------------------------------------------------------------
  function new(string name = "s_debug");
    super.new(name);
  endfunction

  // --------------------------------------------------------------------
  task body();
    logic wr_full = 0;
    logic rd_empty = 1;
    int count;
    fifo_sequence_item item;
    fifo_sequence_item c_item;
    item = fifo_sequence_item::type_id::create("item");

    repeat(64)
    begin
      $cast(c_item, item.clone);
      start_item(c_item);
      assert(c_item.randomize());
      if(wr_full)
        c_item.command = FIFO_RD;
      else if(rd_empty)
        c_item.command = FIFO_WR;
      finish_item(c_item);
      wr_full = c_item.wr_full;
      rd_empty = c_item.rd_empty;
    end

    count = c_item.count;
    repeat(count)
    begin
      $cast(c_item, item.clone);
      start_item(c_item);
      assert(c_item.randomize());
      c_item.command = FIFO_RD;
      finish_item(c_item);
    end
  endtask: body

// --------------------------------------------------------------------
endclass : s_debug