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[/] [openmsp430/] [trunk/] [core/] [sim/] [rtl_sim/] [src/] [mpy_mpy.v] - Blame information for rev 219

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1 67 olivier.gi
/*===========================================================================*/
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/* Copyright (C) 2001 Authors                                                */
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/*                                                                           */
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/* This source file may be used and distributed without restriction provided */
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/* that this copyright statement is not removed from the file and that any   */
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/* derivative work contains the original copyright notice and the associated */
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/* disclaimer.                                                               */
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/*                                                                           */
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/* This source file is free software; you can redistribute it and/or modify  */
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/* it under the terms of the GNU Lesser General Public License as published  */
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/* by the Free Software Foundation; either version 2.1 of the License, or    */
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/* (at your option) any later version.                                       */
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/*                                                                           */
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/* This source is distributed in the hope that it will be useful, but WITHOUT*/
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/* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or     */
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/* FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public       */
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/* License for more details.                                                 */
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/*                                                                           */
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/* You should have received a copy of the GNU Lesser General Public License  */
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/* along with this source; if not, write to the Free Software Foundation,    */
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/* Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA        */
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/*                                                                           */
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/*===========================================================================*/
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/*                          HARDWARE MULTIPLIER                              */
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/*---------------------------------------------------------------------------*/
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/* Test the hardware multiplier:                                             */
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/*                                - MPY  mode.                               */
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/*                                                                           */
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/* Author(s):                                                                */
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/*             - Olivier Girard,    olgirard@gmail.com                       */
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/*                                                                           */
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/*---------------------------------------------------------------------------*/
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/* $Rev: 18 $                                                                */
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/* $LastChangedBy: olivier.girard $                                          */
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/* $LastChangedDate: 2009-08-04 23:44:12 +0200 (Tue, 04 Aug 2009) $          */
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/*===========================================================================*/
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`define NO_TIMEOUT
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integer     i;
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reg  [31:0] result;
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initial
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   begin
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      $display(" ===============================================");
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      $display("|                 START SIMULATION              |");
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      $display(" ===============================================");
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`ifdef MULTIPLIER
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      repeat(5) @(posedge mclk);
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      stimulus_done = 0;
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      i = 0;
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      for ( i=0; i < 'h10000; i=i+1)
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        begin
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           @(r15);
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           result = r8*r9;
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           if (r10 !== result[15:0])
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             begin
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                $display("ERROR: OP1 = 0x%h / OP2 = 0x%h", r8, r9);
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                $display("ERROR: Result is: SUMEXT = 0x%h / RESHI = 0x%h / RESLO = 0x%h", r12, r11, r10);
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                $display("ERROR: Expected : SUMEXT = 0x%h / RESHI = 0x%h / RESLO = 0x%h", 0, result[31:16], result[15:0]);
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                tb_error("====== UNSIGNED MULTIPLICATION: RESLO =====");
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             end
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           if (r11 !== result[31:16])
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             begin
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                $display("ERROR: OP1 = 0x%h / OP2 = 0x%h", r8, r9);
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                $display("ERROR: Result is: SUMEXT = 0x%h / RESHI = 0x%h / RESLO = 0x%h", r12, r11, r10);
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                $display("ERROR: Expected : SUMEXT = 0x%h / RESHI = 0x%h / RESLO = 0x%h", 0, result[31:16], result[15:0]);
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                tb_error("====== UNSIGNED MULTIPLICATION: RESHI =====");
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             end
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           if (r12 !== 16'h0000)
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             begin
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                $display("ERROR: OP1 = 0x%h / OP2 = 0x%h", r8, r9);
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                $display("ERROR: Result is: SUMEXT = 0x%h / RESHI = 0x%h / RESLO = 0x%h", r12, r11, r10);
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                $display("ERROR: Expected : SUMEXT = 0x%h / RESHI = 0x%h / RESLO = 0x%h", 0, result[31:16], result[15:0]);
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                tb_error("====== UNSIGNED MULTIPLICATION: SUMEXT =====");
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             end
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           if (r15[7:0]==8'h00)
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             $display("OP2 = 0x%h done", r9);
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        end
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      stimulus_done = 1;
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`else
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       tb_skip_finish("|      (hardware multiplier not included)       |");
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`endif
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   end

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