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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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/* TWO-OPERAND ARITHMETIC: ADD INSTRUCTION */
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/*---------------------------------------------------------------------------*/
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/* Test the ADD instruction with all addressing modes */
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olivier.gi |
/* */
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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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olivier.gi |
/* $Rev: 134 $ */
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/* $LastChangedBy: olivier.girard $ */
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/* $LastChangedDate: 2012-03-22 21:31:06 +0100 (Thu, 22 Mar 2012) $ */
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35 |
2 |
olivier.gi |
/*===========================================================================*/
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36 |
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initial
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38 |
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begin
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39 |
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$display(" ===============================================");
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40 |
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$display("| START SIMULATION |");
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41 |
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$display(" ===============================================");
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42 |
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repeat(5) @(posedge mclk);
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43 |
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stimulus_done = 0;
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44 |
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45 |
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// Check reset values
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46 |
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//--------------------------------------------------------
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47 |
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if (r2 !==16'h0000) tb_error("R2 reset value");
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48 |
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if (r3 !==16'h0000) tb_error("R3 reset value");
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49 |
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if (r4 !==16'h0000) tb_error("R4 reset value");
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50 |
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if (r5 !==16'h0000) tb_error("R5 reset value");
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51 |
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if (r6 !==16'h0000) tb_error("R6 reset value");
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52 |
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if (r7 !==16'h0000) tb_error("R7 reset value");
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53 |
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if (r8 !==16'h0000) tb_error("R8 reset value");
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54 |
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if (r9 !==16'h0000) tb_error("R9 reset value");
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55 |
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if (r10!==16'h0000) tb_error("R10 reset value");
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56 |
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if (r11!==16'h0000) tb_error("R11 reset value");
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57 |
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if (r12!==16'h0000) tb_error("R12 reset value");
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58 |
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if (r13!==16'h0000) tb_error("R13 reset value");
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59 |
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if (r14!==16'h0000) tb_error("R14 reset value");
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60 |
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if (r15!==16'h0000) tb_error("R15 reset value");
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61 |
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62 |
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63 |
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// Make sure initialization worked fine
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64 |
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//--------------------------------------------------------
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65 |
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@(r15==16'h1000);
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66 |
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67 |
134 |
olivier.gi |
if (r2 !==16'h0002) tb_error("R2 initialization");
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68 |
2 |
olivier.gi |
if (r3 !==16'h3333) tb_error("R3 initialization");
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69 |
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if (r4 !==16'h4444) tb_error("R4 initialization");
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70 |
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if (r5 !==16'h5555) tb_error("R5 initialization");
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71 |
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if (r6 !==16'h6666) tb_error("R6 initialization");
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72 |
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if (r7 !==16'h7777) tb_error("R7 initialization");
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if (r8 !==16'h8888) tb_error("R8 initialization");
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if (r9 !==16'h9999) tb_error("R9 initialization");
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75 |
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if (r10!==16'haaaa) tb_error("R10 initialization");
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76 |
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if (r11!==16'hbbbb) tb_error("R11 initialization");
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77 |
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if (r12!==16'hcccc) tb_error("R12 initialization");
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78 |
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if (r13!==16'hdddd) tb_error("R13 initialization");
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if (r14!==16'heeee) tb_error("R14 initialization");
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// ADD: Check when source is Rn
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//--------------------------------------------------------
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@(r15==16'h2000);
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if (r5 !==16'h9999) tb_error("====== ADD Rn Rm =====");
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if (r4 ===16'h1234) tb_error("====== ADD Rn PC =====");
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88 |
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if (mem210 !==16'h5555) tb_error("====== ADD Rn x(Rm) =====");
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89 |
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if (mem212 !==16'h9abc) tb_error("====== ADD Rn EDE =====");
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90 |
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if (mem214 !==16'h6789) tb_error("====== ADD Rn &EDE =====");
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92 |
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93 |
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// ADD: Check when source is @Rn
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//--------------------------------------------------------
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@(r15==16'h3000);
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97 |
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if (r5 !==16'h7777) tb_error("====== ADD @Rn Rm =====");
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98 |
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if (r4 ===16'h0000) tb_error("====== ADD @Rn PC =====");
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99 |
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if (mem210 !==16'h6666) tb_error("====== ADD @Rn x(Rm) =====");
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100 |
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if (mem212 !==16'hed2e) tb_error("====== ADD @Rn EDE =====");
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if (mem214 !==16'h4653) tb_error("====== ADD @Rn &EDE =====");
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103 |
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// ADD: Check when source is @Rn+
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//--------------------------------------------------------
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@(r15==16'h4000);
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olivier.gi |
if (r4 !==(`PER_SIZE+16'h0002)) tb_error("====== ADD @Rn+ Rm =====");
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if (r5 !==16'haaaa) tb_error("====== ADD @Rn+ Rm =====");
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110 |
2 |
olivier.gi |
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111 |
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olivier.gi |
if (r6 !==(`PER_SIZE+16'h0006)) tb_error("====== ADD @Rn+ PC =====");
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2 |
olivier.gi |
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113 |
111 |
olivier.gi |
if (r7 !==(`PER_SIZE+16'h0010)) tb_error("====== ADD @Rn+ x(Rm) =====");
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if (mem210 !==16'h6666) tb_error("====== ADD @Rn+ x(Rm) =====");
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2 |
olivier.gi |
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111 |
olivier.gi |
if (r8 !==(`PER_SIZE+16'h0008)) tb_error("====== ADD @Rn+ EDE =====");
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if (mem212 !==16'hed2e) tb_error("====== ADD @Rn+ EDE =====");
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118 |
2 |
olivier.gi |
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119 |
111 |
olivier.gi |
if (r9 !==(`PER_SIZE+16'h0004)) tb_error("====== ADD @Rn+ &EDE =====");
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120 |
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if (mem214 !==16'h4653) tb_error("====== ADD @Rn+ &EDE =====");
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121 |
2 |
olivier.gi |
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122 |
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// ADD: Check when source is #N
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//--------------------------------------------------------
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124 |
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@(r15==16'h5000);
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125 |
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if (r4 !==16'h4444) tb_error("====== ADD #N Rm =====");
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127 |
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if (r5 !==16'h0000) tb_error("====== ADD #N PC =====");
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128 |
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if (mem230 !==16'hae8c) tb_error("====== ADD #N x(Rm) =====");
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129 |
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if (mem210 !==16'h5d50) tb_error("====== ADD #N EDE =====");
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130 |
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if (mem206 !==16'h6ea1) tb_error("====== ADD #N &EDE =====");
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131 |
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132 |
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133 |
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// ADD: Check when source is x(Rn)
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//--------------------------------------------------------
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135 |
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@(r15==16'h6000);
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136 |
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137 |
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if (r5 !==16'h957b) tb_error("====== ADD x(Rn) Rm =====");
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138 |
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if (r6 ===16'h0000) tb_error("====== ADD x(Rn) PC =====");
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139 |
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if (mem214 !==16'h5776) tb_error("====== ADD x(Rn) x(Rm) =====");
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140 |
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if (mem220 !==16'h937b) tb_error("====== ADD x(Rn) EDE =====");
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141 |
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if (mem208 !==16'hace4) tb_error("====== ADD x(Rn) &EDE =====");
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142 |
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143 |
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144 |
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// ADD: Check when source is EDE
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145 |
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//--------------------------------------------------------
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146 |
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@(r15==16'h7000);
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147 |
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148 |
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if (r4 !==16'h06f7) tb_error("====== ADD EDE Rm =====");
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149 |
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if (r6 ===16'h0000) tb_error("====== ADD EDE PC =====");
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150 |
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if (mem214 !==16'h0946) tb_error("====== ADD EDE x(Rm) =====");
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151 |
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if (mem216 !==16'hb933) tb_error("====== ADD EDE EDE =====");
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152 |
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if (mem212 !==16'h2ab2) tb_error("====== ADD EDE &EDE =====");
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153 |
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154 |
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155 |
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// ADD: Check when source is &EDE
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//--------------------------------------------------------
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157 |
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@(r15==16'h8000);
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158 |
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159 |
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if (r4 !==16'h66f5) tb_error("====== ADD &EDE Rm =====");
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160 |
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if (r6 ===16'h0000) tb_error("====== ADD &EDE PC =====");
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161 |
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if (mem214 !==16'h82d1) tb_error("====== ADD &EDE x(Rm) =====");
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162 |
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if (mem218 !==16'hca4e) tb_error("====== ADD &EDE EDE =====");
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163 |
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if (mem202 !==16'h1338) tb_error("====== ADD &EDE &EDE =====");
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164 |
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165 |
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166 |
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// ADD: Check when source is CONST
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//--------------------------------------------------------
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168 |
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@(r15==16'h9000);
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169 |
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170 |
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if (r4 !==16'h4444) tb_error("====== ADD #+0 Rm =====");
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171 |
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if (r5 !==16'h5556) tb_error("====== ADD #+1 Rm =====");
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172 |
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if (r6 !==16'h6668) tb_error("====== ADD #+2 Rm =====");
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173 |
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if (r7 !==16'h777b) tb_error("====== ADD #+4 Rm =====");
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174 |
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if (r8 !==16'h8890) tb_error("====== ADD #+8 Rm =====");
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175 |
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if (r9 !==16'h9998) tb_error("====== ADD #-1 Rm =====");
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176 |
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177 |
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if (r11 !==16'h1234) tb_error("====== ADD #+4 PC =====");
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178 |
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179 |
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if (mem210 !==16'h4444) tb_error("====== ADD #+0 x(Rm) =====");
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180 |
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if (mem212 !==16'h5556) tb_error("====== ADD #+1 x(Rm) =====");
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181 |
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if (mem214 !==16'h6668) tb_error("====== ADD #+2 x(Rm) =====");
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182 |
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if (mem216 !==16'h777b) tb_error("====== ADD #+4 x(Rm) =====");
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183 |
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if (mem218 !==16'h8890) tb_error("====== ADD #+8 x(Rm) =====");
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184 |
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if (mem21A !==16'h9998) tb_error("====== ADD #-1 x(Rm) =====");
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185 |
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186 |
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if (mem220 !==16'h4444) tb_error("====== ADD #+0 EDE =====");
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187 |
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if (mem222 !==16'h5556) tb_error("====== ADD #+1 EDE =====");
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188 |
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if (mem224 !==16'h6668) tb_error("====== ADD #+2 EDE =====");
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189 |
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if (mem226 !==16'h777b) tb_error("====== ADD #+4 EDE =====");
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190 |
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if (mem228 !==16'h8890) tb_error("====== ADD #+8 EDE =====");
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191 |
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if (mem22A !==16'h9998) tb_error("====== ADD #-1 EDE =====");
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192 |
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193 |
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if (mem230 !==16'h4444) tb_error("====== ADD #+0 &EDE =====");
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194 |
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if (mem232 !==16'h5556) tb_error("====== ADD #+1 &EDE =====");
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195 |
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if (mem234 !==16'h6668) tb_error("====== ADD #+2 &EDE =====");
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196 |
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if (mem236 !==16'h777b) tb_error("====== ADD #+4 &EDE =====");
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197 |
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if (mem238 !==16'h8890) tb_error("====== ADD #+8 &EDE =====");
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198 |
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if (mem23A !==16'h9998) tb_error("====== ADD #-1 &EDE =====");
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199 |
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200 |
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201 |
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// ADD: Check Flags
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202 |
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//--------------------------------------------------------
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203 |
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204 |
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@(r15==16'hA000);
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205 |
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if (r2 !==16'h0000) tb_error("====== ADD FLAG: Flag check error: V=0, N=0, Z=0, C=0 =====");
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206 |
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if (r5 !==16'h0999) tb_error("====== ADD FLAG: Result check error: V=0, N=0, Z=0, C=0 =====");
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207 |
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208 |
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@(r15==16'hA001);
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209 |
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if (r2 !==16'h0001) tb_error("====== ADD FLAG: Flag check error: V=0, N=0, Z=0, C=1 =====");
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210 |
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if (r5 !==16'h0001) tb_error("====== ADD FLAG: Result check error: V=0, N=0, Z=0, C=1 =====");
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211 |
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212 |
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@(r15==16'hA002);
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213 |
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if (r2 !==16'h0002) tb_error("====== ADD FLAG: Flag check error: V=0, N=0, Z=1, C=0 =====");
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214 |
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if (r5 !==16'h0000) tb_error("====== ADD FLAG: Result check error: V=0, N=0, Z=1, C=0 =====");
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215 |
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216 |
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@(r15==16'hA003);
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217 |
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if (r2 !==16'h0004) tb_error("====== ADD FLAG: Flag check error: V=0, N=1, Z=0, C=0 =====");
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218 |
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if (r5 !==16'hff10) tb_error("====== ADD FLAG: Result check error: V=0, N=1, Z=0, C=0 =====");
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219 |
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220 |
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@(r15==16'hA004);
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221 |
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if (r2 !==16'h0104) tb_error("====== ADD FLAG: Flag check error: V=1, N=1, Z=0, C=0 =====");
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222 |
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if (r5 !==16'h800f) tb_error("====== ADD FLAG: Result check error: V=1, N=1, Z=0, C=0 =====");
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223 |
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224 |
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@(r15==16'hA005);
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225 |
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if (r2 !==16'h0101) tb_error("====== ADD FLAG: Flag check error: V=1, N=0, Z=0, C=1 =====");
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226 |
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if (r5 !==16'h7f00) tb_error("====== ADD FLAG: Result check error: V=1, N=0, Z=0, C=1 =====");
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227 |
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228 |
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// ---------------- TEST WHEN SOURCE IS CONSTANT IN BYTE MODE ------ */
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229 |
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// #
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230 |
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// # NOTE: The following section would not fit in the smallest ROM
|
231 |
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// # configuration for the "two-op_add-b.v" pattern.
|
232 |
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// # It is therefore executed here.
|
233 |
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// #
|
234 |
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@(r15==16'hB000);
|
235 |
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236 |
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237 |
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if (mem250 !==16'haa44) tb_error("====== ADD.B #+0 &EDE =====");
|
238 |
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if (mem252 !==16'haa56) tb_error("====== ADD.B #+1 &EDE =====");
|
239 |
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if (mem254 !==16'haa68) tb_error("====== ADD.B #+2 &EDE =====");
|
240 |
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if (mem256 !==16'haa7b) tb_error("====== ADD.B #+4 &EDE =====");
|
241 |
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if (mem258 !==16'haa3d) tb_error("====== ADD.B #+8 &EDE =====");
|
242 |
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if (mem25A !==16'haa98) tb_error("====== ADD.B #-1 &EDE =====");
|
243 |
|
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if (mem25C !==16'haa55) tb_error("====== ADD.B #+0 &EDE =====");
|
244 |
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if (mem25E !==16'hbc55) tb_error("====== ADD.B #+1 &EDE =====");
|
245 |
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if (mem260 !==16'hce55) tb_error("====== ADD.B #+2 &EDE =====");
|
246 |
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if (mem262 !==16'he155) tb_error("====== ADD.B #+4 &EDE =====");
|
247 |
|
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if (mem264 !==16'hf655) tb_error("====== ADD.B #+8 &EDE =====");
|
248 |
|
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if (mem266 !==16'h3255) tb_error("====== ADD.B #-1 &EDE =====");
|
249 |
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|
250 |
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251 |
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// ADD.B: Check Flags
|
252 |
|
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//--------------------------------------------------------
|
253 |
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|
254 |
|
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@(r15==16'hC000);
|
255 |
|
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if (r2 !==16'h0000) tb_error("====== ADD.B FLAG: Flag check error: V=0, N=0, Z=0, C=0 =====");
|
256 |
|
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if (r5 !==16'h0009) tb_error("====== ADD.B FLAG: Result check error: V=0, N=0, Z=0, C=0 =====");
|
257 |
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|
258 |
|
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@(r15==16'hC001);
|
259 |
|
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if (r2 !==16'h0001) tb_error("====== ADD.B FLAG: Flag check error: V=0, N=0, Z=0, C=1 =====");
|
260 |
|
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if (r5 !==16'h0001) tb_error("====== ADD.B FLAG: Result check error: V=0, N=0, Z=0, C=1 =====");
|
261 |
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|
262 |
|
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@(r15==16'hC002);
|
263 |
|
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if (r2 !==16'h0002) tb_error("====== ADD.B FLAG: Flag check error: V=0, N=0, Z=1, C=0 =====");
|
264 |
|
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if (r5 !==16'h0000) tb_error("====== ADD.B FLAG: Result check error: V=0, N=0, Z=1, C=0 =====");
|
265 |
|
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|
266 |
|
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@(r15==16'hC003);
|
267 |
|
|
if (r2 !==16'h0004) tb_error("====== ADD.B FLAG: Flag check error: V=0, N=1, Z=0, C=0 =====");
|
268 |
|
|
if (r5 !==16'h00f3) tb_error("====== ADD.B FLAG: Result check error: V=0, N=1, Z=0, C=0 =====");
|
269 |
|
|
|
270 |
|
|
@(r15==16'hC004);
|
271 |
|
|
if (r2 !==16'h0104) tb_error("====== ADD.B FLAG: Flag check error: V=1, N=1, Z=0, C=0 =====");
|
272 |
|
|
if (r5 !==16'h008f) tb_error("====== ADD.B FLAG: Result check error: V=1, N=1, Z=0, C=0 =====");
|
273 |
|
|
|
274 |
|
|
@(r15==16'hC005);
|
275 |
|
|
if (r2 !==16'h0101) tb_error("====== ADD.B FLAG: Flag check error: V=1, N=0, Z=0, C=1 =====");
|
276 |
|
|
if (r5 !==16'h007f) tb_error("====== ADD.B FLAG: Result check error: V=1, N=0, Z=0, C=1 =====");
|
277 |
|
|
|
278 |
|
|
stimulus_done = 1;
|
279 |
|
|
end
|
280 |
|
|
|