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annotate ztestrun.c @ 1925:039553703c20

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Don't apply address and cd register changes to the 'live' registers until pending flag is cleared, but do preserve the upper address bits in the latch. Fixes regression in Overdrive 2 while preserving fix to Mona in 344 bytes
author Michael Pavone <pavone@retrodev.com>
date Mon, 13 Apr 2020 20:43:25 -0700
parents 48a43dff4dc0
children 0a26f3657295 10c7f1e44c47
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 /*
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2 Copyright 2013 Michael Pavone
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3 This file is part of BlastEm.
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4 BlastEm is free software distributed under the terms of the GNU General Public License version 3 or greater. See COPYING for full license text.
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5 */
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6 #include "z80inst.h"
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7 #ifdef NEW_CORE
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8 #include "z80.h"
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9 #include <string.h>
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10 #else
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11 #include "z80_to_x86.h"
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12 #endif
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13 #include "mem.h"
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14 #include "vdp.h"
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15 #include <stdio.h>
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16 #include <stdlib.h>
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17 #include <stddef.h>
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18 #include <stdarg.h>
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19
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20 void fatal_error(char *format, ...)
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21 {
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22 va_list args;
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23 va_start(args, format);
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24 vfprintf(stderr, format, args);
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25 va_end(args);
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26 exit(1);
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27 }
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28
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29 uint8_t z80_ram[0x2000];
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30
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31 uint8_t z80_unmapped_read(uint32_t location, void * context)
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32 {
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33 return 0xFF;
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34 }
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35
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36 void * z80_unmapped_write(uint32_t location, void * context, uint8_t value)
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37 {
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38 return context;
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39 }
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40
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41 const memmap_chunk z80_map[] = {
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42 { 0x0000, 0x4000, 0x1FFF, 0, 0, MMAP_READ | MMAP_WRITE | MMAP_CODE, z80_ram, NULL, NULL, NULL, NULL },
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43 { 0x4000, 0x10000, 0xFFFF, 0, 0, 0, NULL, NULL, NULL, z80_unmapped_read, z80_unmapped_write}
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44 };
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45
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46 const memmap_chunk port_map[] = {
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47 { 0x0000, 0x100, 0xFF, 0, 0, 0, NULL, NULL, NULL, z80_unmapped_read, z80_unmapped_write}
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48 };
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49
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50 #ifndef NEW_CORE
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51 void z80_next_int_pulse(z80_context * context)
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52 {
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53 context->int_pulse_start = context->int_pulse_end = CYCLE_NEVER;
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54 }
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55 #endif
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56
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57 int main(int argc, char ** argv)
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58 {
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59 long filesize;
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60 uint8_t *filebuf;
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61 z80_options opts;
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62 z80_context *context;
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63 char *fname = NULL;
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64 uint8_t retranslate = 0;
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65 for (int i = 1; i < argc; i++)
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66 {
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67 if (argv[i][0] == '-') {
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68 switch(argv[i][1])
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69 {
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70 case 'r':
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71 retranslate = 1;
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72 break;
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73 default:
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74 fprintf(stderr, "Unrecognized switch -%c\n", argv[i][1]);
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75 exit(1);
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76 }
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77 } else if (!fname) {
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78 fname = argv[i];
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79 }
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80 }
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81 if (!fname) {
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82 fputs("usage: ztestrun zrom [cartrom]\n", stderr);
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83 exit(1);
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84 }
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85 FILE * f = fopen(fname, "rb");
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86 if (!f) {
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87 fprintf(stderr, "unable to open file %s\n", fname);
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88 exit(1);
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89 }
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90 fseek(f, 0, SEEK_END);
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91 filesize = ftell(f);
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92 fseek(f, 0, SEEK_SET);
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93 filesize = filesize < sizeof(z80_ram) ? filesize : sizeof(z80_ram);
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94 if (fread(z80_ram, 1, filesize, f) != filesize) {
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95 fprintf(stderr, "error reading %s\n",fname);
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96 exit(1);
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97 }
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98 fclose(f);
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99 init_z80_opts(&opts, z80_map, 2, port_map, 1, 1, 0xFF);
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100 context = init_z80_context(&opts);
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101 #ifdef NEW_CORE
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102 z80_execute(context, 1000);
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103 printf("A: %X\nB: %X\nC: %X\nD: %X\nE: %X\nHL: %X\nIX: %X\nIY: %X\nSP: %X\n\nIM: %d, IFF1: %d, IFF2: %d\n",
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104 context->main[7], context->main[0], context->main[1],
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105 context->main[2], context->main[3],
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106 (context->main[4] << 8) | context->main[5],
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107 context->ix,
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108 context->iy,
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109 context->sp, context->imode, context->iff1, context->iff2);
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110 printf("Flags: SZYHXVNC\n"
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111 " %d%d%d%d%d%d%d%d\n",
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112 context->last_flag_result >> 7, context->zflag != 0, context->last_flag_result >> 5 & 1, context->chflags >> 3 & 1,
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113 context->last_flag_result >> 3 & 1, context->pvflag != 0, context->nflag != 0, context->chflags >> 7 & 1
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114 );
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115 puts("--Alternate Regs--");
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116 printf("A: %X\nB: %X\nC: %X\nD: %X\nE: %X\nHL: %X\n",
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117 context->alt[7], context->alt[0], context->alt[1],
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118 context->alt[2], context->alt[3],
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119 (context->alt[4] << 8) | context->alt[5]);
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120 #else
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121 //Z80 RAM
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122 context->mem_pointers[0] = z80_ram;
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123 if (retranslate) {
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124 //run core long enough to translate code
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125 z80_run(context, 1);
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126 for (int i = 0; i < filesize; i++)
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127 {
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128 z80_handle_code_write(i, context);
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129 }
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130 z80_assert_reset(context, context->current_cycle);
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131 z80_clear_reset(context, context->current_cycle + 3);
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132 z80_adjust_cycles(context, context->current_cycle);
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133 }
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134 z80_run(context, 1000);
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135 printf("A: %X\nB: %X\nC: %X\nD: %X\nE: %X\nHL: %X\nIX: %X\nIY: %X\nSP: %X\n\nIM: %d, IFF1: %d, IFF2: %d\n",
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136 context->regs[Z80_A], context->regs[Z80_B], context->regs[Z80_C],
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137 context->regs[Z80_D], context->regs[Z80_E],
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138 (context->regs[Z80_H] << 8) | context->regs[Z80_L],
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139 (context->regs[Z80_IXH] << 8) | context->regs[Z80_IXL],
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140 (context->regs[Z80_IYH] << 8) | context->regs[Z80_IYL],
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141 context->sp, context->im, context->iff1, context->iff2);
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142 printf("Flags: SZYHXVNC\n"
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143 " %d%d%d%d%d%d%d%d\n",
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144 context->flags[ZF_S], context->flags[ZF_Z], context->flags[ZF_XY] >> 5 & 1, context->flags[ZF_H],
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145 context->flags[ZF_XY] >> 3 & 1, context->flags[ZF_PV], context->flags[ZF_N], context->flags[ZF_C]
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146 );
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147 puts("--Alternate Regs--");
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148 printf("A: %X\nB: %X\nC: %X\nD: %X\nE: %X\nHL: %X\n",
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149 context->alt_regs[Z80_A], context->alt_regs[Z80_B], context->alt_regs[Z80_C],
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150 context->alt_regs[Z80_D], context->alt_regs[Z80_E],
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151 (context->alt_regs[Z80_H] << 8) | context->alt_regs[Z80_L]);
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152 #endif
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153 return 0;
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154 }