| 1 |
2 |
olivier.gi |
/*===========================================================================*/
|
| 2 |
|
|
/* Copyright (C) 2001 Authors */
|
| 3 |
|
|
/* */
|
| 4 |
|
|
/* This source file may be used and distributed without restriction provided */
|
| 5 |
|
|
/* that this copyright statement is not removed from the file and that any */
|
| 6 |
|
|
/* derivative work contains the original copyright notice and the associated */
|
| 7 |
|
|
/* disclaimer. */
|
| 8 |
|
|
/* */
|
| 9 |
|
|
/* This source file is free software; you can redistribute it and/or modify */
|
| 10 |
|
|
/* it under the terms of the GNU Lesser General Public License as published */
|
| 11 |
|
|
/* by the Free Software Foundation; either version 2.1 of the License, or */
|
| 12 |
|
|
/* (at your option) any later version. */
|
| 13 |
|
|
/* */
|
| 14 |
|
|
/* This source is distributed in the hope that it will be useful, but WITHOUT*/
|
| 15 |
|
|
/* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or */
|
| 16 |
|
|
/* FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public */
|
| 17 |
|
|
/* License for more details. */
|
| 18 |
|
|
/* */
|
| 19 |
|
|
/* You should have received a copy of the GNU Lesser General Public License */
|
| 20 |
|
|
/* along with this source; if not, write to the Free Software Foundation, */
|
| 21 |
|
|
/* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */
|
| 22 |
|
|
/* */
|
| 23 |
|
|
/*===========================================================================*/
|
| 24 |
|
|
/* CALL: DATA READ ACCESS FROM ROM */
|
| 25 |
|
|
/*---------------------------------------------------------------------------*/
|
| 26 |
|
|
/* Test the CALL instruction with all addressing modes making a read access */
|
| 27 |
|
|
/* to the ROM. */
|
| 28 |
|
|
/*===========================================================================*/
|
| 29 |
|
|
|
| 30 |
|
|
initial
|
| 31 |
|
|
begin
|
| 32 |
|
|
$display(" ===============================================");
|
| 33 |
|
|
$display("| START SIMULATION |");
|
| 34 |
|
|
$display(" ===============================================");
|
| 35 |
|
|
repeat(5) @(posedge mclk);
|
| 36 |
|
|
stimulus_done = 0;
|
| 37 |
|
|
|
| 38 |
|
|
// Initialization
|
| 39 |
|
|
@(r15==16'h1000);
|
| 40 |
|
|
if (r1 !==16'h0252) tb_error("====== SP initialization =====");
|
| 41 |
|
|
if (r5 !==16'h0000) tb_error("====== R5 initialization =====");
|
| 42 |
|
|
|
| 43 |
|
|
|
| 44 |
|
|
// Addressing mode: @Rn
|
| 45 |
|
|
@(r15==16'h2000);
|
| 46 |
|
|
if (r1 !==16'h0252) tb_error("====== CALL (@Rn mode): SP value =====");
|
| 47 |
|
|
if (r5 !==16'h5678) tb_error("====== CALL (@Rn mode): R5 value =====");
|
| 48 |
|
|
|
| 49 |
|
|
|
| 50 |
|
|
// Addressing mode: @Rn+
|
| 51 |
|
|
@(r15==16'h3000);
|
| 52 |
|
|
if (r1 !==16'h0252) tb_error("====== CALL (@Rn+ mode): SP value =====");
|
| 53 |
|
|
if (r5 !==16'h9abc) tb_error("====== CALL (@Rn+ mode): R5 value =====");
|
| 54 |
|
|
|
| 55 |
|
|
// Addressing mode: X(Rn)
|
| 56 |
|
|
@(r15==16'h4000);
|
| 57 |
|
|
if (r1 !==16'h0252) tb_error("====== CALL (X(Rn) mode): SP value =====");
|
| 58 |
|
|
if (r5 !==16'hef01) tb_error("====== CALL (X(Rn) mode): R5 value =====");
|
| 59 |
|
|
|
| 60 |
|
|
|
| 61 |
|
|
// Addressing mode: EDE
|
| 62 |
|
|
@(r15==16'h5000);
|
| 63 |
|
|
if (r1 !==16'h0252) tb_error("====== CALL (EDE mode): SP value =====");
|
| 64 |
|
|
if (r5 !==16'h2345) tb_error("====== CALL (EDE mode): R5 value =====");
|
| 65 |
|
|
|
| 66 |
|
|
|
| 67 |
|
|
// Addressing mode: &EDE
|
| 68 |
|
|
@(r15==16'h6000);
|
| 69 |
|
|
if (r1 !==16'h0252) tb_error("====== CALL (&EDE mode): SP value =====");
|
| 70 |
|
|
if (r5 !==16'h6789) tb_error("====== CALL (&EDE mode): R5 value =====");
|
| 71 |
|
|
|
| 72 |
|
|
|
| 73 |
|
|
stimulus_done = 1;
|
| 74 |
|
|
end
|
| 75 |
|
|
|
