Mercurial > repos > blastem
annotate blastem.c @ 450:3758bcdae5de
Fix bug that caused a DMA fill to start after another DMA operation completed if the FIFO is not empty
author | Mike Pavone <pavone@retrodev.com> |
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date | Sun, 01 Sep 2013 12:11:28 -0700 |
parents | e730fc040169 |
children | 608815ab4ff2 |
rev | line source |
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1 #include "68kinst.h" |
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2 #include "m68k_to_x86.h" |
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3 #include "z80_to_x86.h" |
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4 #include "mem.h" |
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5 #include "vdp.h" |
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6 #include "render.h" |
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7 #include "blastem.h" |
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8 #include <stdio.h> |
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9 #include <stdlib.h> |
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10 #include <string.h> |
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11 |
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12 #define CARTRIDGE_WORDS 0x200000 |
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13 #define RAM_WORDS 32 * 1024 |
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14 #define Z80_RAM_BYTES 8 * 1024 |
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15 |
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16 #define MCLKS_NTSC 53693175 |
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17 #define MCLKS_PAL 53203395 |
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18 |
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19 #define MCLKS_PER_68K 7 |
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20 #define MCLKS_PER_YM MCLKS_PER_68K |
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21 #define MCLKS_PER_Z80 15 |
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22 #define MCLKS_PER_PSG (MCLKS_PER_Z80*16) |
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23 |
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24 //TODO: Figure out the exact value for this |
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25 #define LINES_NTSC 262 |
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26 #define LINES_PAL 312 |
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27 |
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28 uint32_t mclks_per_frame = MCLKS_LINE*LINES_NTSC; |
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29 |
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30 uint16_t cart[CARTRIDGE_WORDS]; |
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31 uint16_t ram[RAM_WORDS]; |
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32 uint8_t z80_ram[Z80_RAM_BYTES]; |
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33 |
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34 int headless = 0; |
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35 int z80_enabled = 1; |
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36 int frame_limit = 0; |
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37 |
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38 tern_node * config; |
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39 |
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40 #ifndef MIN |
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41 #define MIN(a,b) ((a) < (b) ? (a) : (b)) |
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42 #endif |
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43 |
166 | 44 #define SMD_HEADER_SIZE 512 |
45 #define SMD_MAGIC1 0x03 | |
46 #define SMD_MAGIC2 0xAA | |
47 #define SMD_MAGIC3 0xBB | |
48 #define SMD_BLOCK_SIZE 0x4000 | |
49 | |
50 int load_smd_rom(long filesize, FILE * f) | |
51 { | |
52 uint8_t block[SMD_BLOCK_SIZE]; | |
53 filesize -= SMD_HEADER_SIZE; | |
54 fseek(f, SMD_HEADER_SIZE, SEEK_SET); | |
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55 |
166 | 56 uint16_t * dst = cart; |
57 while (filesize > 0) { | |
58 fread(block, 1, SMD_BLOCK_SIZE, f); | |
59 for (uint8_t *low = block, *high = (block+SMD_BLOCK_SIZE/2), *end = block+SMD_BLOCK_SIZE; high < end; high++, low++) { | |
60 *(dst++) = *high << 8 | *low; | |
61 } | |
62 filesize -= SMD_BLOCK_SIZE; | |
63 } | |
64 return 1; | |
65 } | |
66 | |
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67 int load_rom(char * filename) |
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68 { |
166 | 69 uint8_t header[10]; |
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70 FILE * f = fopen(filename, "rb"); |
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71 if (!f) { |
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72 return 0; |
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73 } |
166 | 74 fread(header, 1, sizeof(header), f); |
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75 fseek(f, 0, SEEK_END); |
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76 long filesize = ftell(f); |
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77 if (filesize/2 > CARTRIDGE_WORDS) { |
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78 //carts bigger than 4MB not currently supported |
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79 filesize = CARTRIDGE_WORDS*2; |
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80 } |
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81 fseek(f, 0, SEEK_SET); |
166 | 82 if (header[1] == SMD_MAGIC1 && header[8] == SMD_MAGIC2 && header[9] == SMD_MAGIC3) { |
83 int i; | |
84 for (i = 3; i < 8; i++) { | |
85 if (header[i] != 0) { | |
86 break; | |
87 } | |
88 } | |
89 if (i == 8) { | |
90 if (header[2]) { | |
91 fprintf(stderr, "%s is a split SMD ROM which is not currently supported", filename); | |
92 exit(1); | |
93 } | |
94 return load_smd_rom(filesize, f); | |
95 } | |
96 } | |
97 fread(cart, 2, filesize/2, f); | |
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98 fclose(f); |
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99 for(unsigned short * cur = cart; cur - cart < (filesize/2); ++cur) |
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100 { |
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101 *cur = (*cur >> 8) | (*cur << 8); |
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102 } |
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103 //TODO: Mirror ROM |
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104 return 1; |
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105 } |
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106 |
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107 uint16_t read_dma_value(uint32_t address) |
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108 { |
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109 //addresses here are word addresses (i.e. bit 0 corresponds to A1), so no need to do div by 2 |
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110 if (address < 0x200000) { |
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111 return cart[address]; |
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112 } else if(address >= 0x700000) { |
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113 return ram[address & 0x7FFF]; |
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114 } |
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115 //TODO: Figure out what happens when you try to DMA from weird adresses like IO or banked Z80 area |
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116 return 0; |
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117 } |
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118 |
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119 //TODO: Make these dependent on the video mode |
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120 //#define VINT_CYCLE ((MCLKS_LINE * 225 + (148 + 40) * 4)/MCLKS_PER_68K) |
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121 #define ZVINT_CYCLE ((MCLKS_LINE * 225 + (148 + 40) * 4)/MCLKS_PER_Z80) |
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122 //#define VINT_CYCLE ((MCLKS_LINE * 226)/MCLKS_PER_68K) |
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123 //#define ZVINT_CYCLE ((MCLKS_LINE * 226)/MCLKS_PER_Z80) |
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124 |
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125 void adjust_int_cycle(m68k_context * context, vdp_context * v_context) |
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126 { |
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127 context->int_cycle = CYCLE_NEVER; |
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128 if ((context->status & 0x7) < 6) { |
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129 uint32_t next_vint = vdp_next_vint(v_context); |
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130 if (next_vint != CYCLE_NEVER) { |
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131 next_vint /= MCLKS_PER_68K; |
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132 context->int_cycle = next_vint; |
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133 context->int_num = 6; |
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134 } |
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135 if ((context->status & 0x7) < 4) { |
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136 uint32_t next_hint = vdp_next_hint(v_context); |
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137 if (next_hint != CYCLE_NEVER) { |
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138 next_hint /= MCLKS_PER_68K; |
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139 if (next_hint < context->int_cycle) { |
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140 context->int_cycle = next_hint; |
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141 context->int_num = 4; |
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142 |
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143 } |
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144 } |
186
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145 } |
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146 } |
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147 |
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148 context->target_cycle = context->int_cycle < context->sync_cycle ? context->int_cycle : context->sync_cycle; |
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149 /*printf("Cyc: %d, Trgt: %d, Int Cyc: %d, Int: %d, Mask: %X, V: %d, H: %d, HICount: %d, HReg: %d, Line: %d\n", |
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150 context->current_cycle, context->target_cycle, context->int_cycle, context->int_num, (context->status & 0x7), |
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151 v_context->regs[REG_MODE_2] & 0x20, v_context->regs[REG_MODE_1] & 0x10, v_context->hint_counter, v_context->regs[REG_HINT], v_context->cycles / MCLKS_LINE);*/ |
186
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152 } |
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153 |
198
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154 int break_on_sync = 0; |
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155 |
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156 uint8_t reset = 1; |
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157 uint8_t need_reset = 0; |
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158 uint8_t busreq = 0; |
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159 uint8_t busack = 0; |
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160 uint32_t busack_cycle = CYCLE_NEVER; |
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161 uint8_t new_busack = 0; |
280 | 162 //#define DO_DEBUG_PRINT |
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163 #ifdef DO_DEBUG_PRINT |
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164 #define dprintf printf |
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165 #define dputs puts |
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166 #else |
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167 #define dprintf |
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168 #define dputs |
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169 #endif |
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170 |
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171 #define Z80_VINT_DURATION 128 |
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172 |
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173 void sync_z80(z80_context * z_context, uint32_t mclks) |
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174 { |
265
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175 if (z80_enabled && !reset && !busreq) { |
333 | 176 genesis_context * gen = z_context->system; |
260
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177 if (need_reset) { |
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178 z80_reset(z_context); |
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179 need_reset = 0; |
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180 } |
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181 z_context->sync_cycle = mclks / MCLKS_PER_Z80; |
333 | 182 uint32_t vint_cycle = vdp_next_vint_z80(gen->vdp) / MCLKS_PER_Z80; |
260
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183 while (z_context->current_cycle < z_context->sync_cycle) { |
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184 if (z_context->iff1 && z_context->current_cycle < (vint_cycle + Z80_VINT_DURATION)) { |
335 | 185 z_context->int_cycle = vint_cycle < z_context->int_enable_cycle ? z_context->int_enable_cycle : vint_cycle; |
260
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186 } |
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187 z_context->target_cycle = z_context->sync_cycle < z_context->int_cycle ? z_context->sync_cycle : z_context->int_cycle; |
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188 dprintf("Running Z80 from cycle %d to cycle %d. Native PC: %p\n", z_context->current_cycle, z_context->sync_cycle, z_context->native_pc); |
260
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189 z80_run(z_context); |
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190 dprintf("Z80 ran to cycle %d\n", z_context->current_cycle); |
260
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191 } |
289
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192 } else { |
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193 z_context->current_cycle = mclks / MCLKS_PER_Z80; |
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194 } |
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195 } |
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196 |
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197 void sync_sound(genesis_context * gen, uint32_t target) |
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198 { |
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199 //printf("YM | Cycle: %d, bpos: %d, PSG | Cycle: %d, bpos: %d\n", gen->ym->current_cycle, gen->ym->buffer_pos, gen->psg->cycles, gen->psg->buffer_pos * 2); |
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200 psg_run(gen->psg, target); |
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201 ym_run(gen->ym, target); |
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202 |
380
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203 //printf("Target: %d, YM bufferpos: %d, PSG bufferpos: %d\n", target, gen->ym->buffer_pos, gen->psg->buffer_pos * 2); |
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204 } |
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205 |
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206 uint32_t frame=0; |
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207 m68k_context * sync_components(m68k_context * context, uint32_t address) |
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208 { |
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209 //TODO: Handle sync targets smaller than a single frame |
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210 genesis_context * gen = context->system; |
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211 vdp_context * v_context = gen->vdp; |
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212 z80_context * z_context = gen->z80; |
268
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213 uint32_t mclks = context->current_cycle * MCLKS_PER_68K; |
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214 sync_z80(z_context, mclks); |
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215 if (mclks >= mclks_per_frame) { |
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216 sync_sound(gen, mclks); |
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217 gen->ym->current_cycle -= mclks_per_frame; |
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218 gen->psg->cycles -= mclks_per_frame; |
374 | 219 if (gen->ym->write_cycle != CYCLE_NEVER) { |
220 gen->ym->write_cycle = gen->ym->write_cycle >= mclks_per_frame/MCLKS_PER_68K ? gen->ym->write_cycle - mclks_per_frame/MCLKS_PER_68K : 0; | |
221 } | |
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222 printf("reached frame end | 68K Cycles: %d, MCLK Cycles: %d\n", context->current_cycle, mclks); |
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223 vdp_run_context(v_context, mclks_per_frame); |
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224 |
215
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225 if (!headless) { |
338
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226 break_on_sync |= wait_render_frame(v_context, frame_limit); |
215
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227 } |
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228 frame++; |
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229 mclks -= mclks_per_frame; |
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230 vdp_adjust_cycles(v_context, mclks_per_frame); |
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231 io_adjust_cycles(gen->ports, context->current_cycle, mclks_per_frame/MCLKS_PER_68K); |
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232 io_adjust_cycles(gen->ports+1, context->current_cycle, mclks_per_frame/MCLKS_PER_68K); |
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233 io_adjust_cycles(gen->ports+2, context->current_cycle, mclks_per_frame/MCLKS_PER_68K); |
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234 if (busack_cycle != CYCLE_NEVER) { |
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235 if (busack_cycle > mclks_per_frame/MCLKS_PER_68K) { |
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236 busack_cycle -= mclks_per_frame/MCLKS_PER_68K; |
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237 } else { |
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238 busack_cycle = CYCLE_NEVER; |
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239 busack = new_busack; |
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240 } |
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241 } |
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242 context->current_cycle -= mclks_per_frame/MCLKS_PER_68K; |
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243 if (z_context->current_cycle >= mclks_per_frame/MCLKS_PER_Z80) { |
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244 z_context->current_cycle -= mclks_per_frame/MCLKS_PER_Z80; |
260
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245 } else { |
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246 z_context->current_cycle = 0; |
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247 } |
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248 if (mclks) { |
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249 vdp_run_context(v_context, mclks); |
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250 } |
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251 } else { |
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252 //printf("running VDP for %d cycles\n", mclks - v_context->cycles); |
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253 vdp_run_context(v_context, mclks); |
380
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Make the PSG and YM2612 use the master clock internal with an increment based on clock divider so that they stay perflectly in sync. Run both the PSG and YM2612 whenver one of them needs to be run.
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254 sync_sound(gen, mclks); |
88
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255 } |
317
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256 if (context->int_ack) { |
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257 vdp_int_ack(v_context, context->int_ack); |
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258 context->int_ack = 0; |
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259 } |
186
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260 adjust_int_cycle(context, v_context); |
198
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261 if (break_on_sync && address) { |
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262 break_on_sync = 0; |
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263 debugger(context, address); |
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264 } |
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265 return context; |
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266 } |
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267 |
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268 m68k_context * vdp_port_write(uint32_t vdp_port, m68k_context * context, uint16_t value) |
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269 { |
343
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270 if (vdp_port & 0x2700E0) { |
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271 printf("machine freeze due to write to address %X\n", 0xC00000 | vdp_port); |
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272 exit(1); |
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273 } |
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274 vdp_port &= 0x1F; |
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275 //printf("vdp_port write: %X, value: %X, cycle: %d\n", vdp_port, value, context->current_cycle); |
198
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276 sync_components(context, 0); |
263
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Add a second context pointer to m68k_context so that try_fifo_write can still have easy access to the VDP. Handle writes to Z80 code addresses from the 68K.
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277 vdp_context * v_context = context->video_context; |
88
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278 if (vdp_port < 0x10) { |
149
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279 int blocked; |
345
29d2ca563499
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280 uint32_t before_cycle = v_context->cycles; |
88
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281 if (vdp_port < 4) { |
149
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282 while (vdp_data_port_write(v_context, value) < 0) { |
88
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283 while(v_context->flags & FLAG_DMA_RUN) { |
342
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284 vdp_run_dma_done(v_context, mclks_per_frame); |
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285 if (v_context->cycles >= mclks_per_frame) { |
215
2b1c2c28b261
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286 if (!headless) { |
450
3758bcdae5de
Fix bug that caused a DMA fill to start after another DMA operation completed if the FIFO is not empty
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287 printf("reached frame end | 68K Cycles: %d, MCLK Cycles: %d\n", context->current_cycle, v_context->cycles); |
338
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336
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|
288 wait_render_frame(v_context, frame_limit); |
215
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289 } |
342
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290 vdp_adjust_cycles(v_context, mclks_per_frame); |
421
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291 genesis_context * gen = context->system; |
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292 io_adjust_cycles(gen->ports, v_context->cycles/MCLKS_PER_68K, mclks_per_frame/MCLKS_PER_68K); |
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293 io_adjust_cycles(gen->ports+1, v_context->cycles/MCLKS_PER_68K, mclks_per_frame/MCLKS_PER_68K); |
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294 io_adjust_cycles(gen->ports+2, v_context->cycles/MCLKS_PER_68K, mclks_per_frame/MCLKS_PER_68K); |
344
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295 if (busack_cycle != CYCLE_NEVER) { |
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296 if (busack_cycle > mclks_per_frame/MCLKS_PER_68K) { |
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297 busack_cycle -= mclks_per_frame/MCLKS_PER_68K; |
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298 } else { |
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299 busack_cycle = CYCLE_NEVER; |
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300 busack = new_busack; |
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|
301 } |
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|
302 } |
88
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303 } |
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304 } |
450
3758bcdae5de
Fix bug that caused a DMA fill to start after another DMA operation completed if the FIFO is not empty
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diff
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|
305 //context->current_cycle = v_context->cycles / MCLKS_PER_68K; |
149
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|
306 } |
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307 } else if(vdp_port < 8) { |
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308 blocked = vdp_control_port_write(v_context, value); |
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|
309 if (blocked) { |
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|
310 while (blocked) { |
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|
311 while(v_context->flags & FLAG_DMA_RUN) { |
342
13f994c88c34
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341
diff
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|
312 vdp_run_dma_done(v_context, mclks_per_frame); |
13f994c88c34
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341
diff
changeset
|
313 if (v_context->cycles >= mclks_per_frame) { |
215
2b1c2c28b261
Added headless flag to avoid initializing SDL and opening a window when running tests.
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211
diff
changeset
|
314 if (!headless) { |
338
5c34a9c39394
Re-enable frame limit, but add a command line flag to disable it
Mike Pavone <pavone@retrodev.com>
parents:
336
diff
changeset
|
315 wait_render_frame(v_context, frame_limit); |
215
2b1c2c28b261
Added headless flag to avoid initializing SDL and opening a window when running tests.
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211
diff
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|
316 } |
342
13f994c88c34
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341
diff
changeset
|
317 vdp_adjust_cycles(v_context, mclks_per_frame); |
421
d0cacb4ade0b
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418
diff
changeset
|
318 genesis_context * gen = context->system; |
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diff
changeset
|
319 io_adjust_cycles(gen->ports, v_context->cycles/MCLKS_PER_68K, mclks_per_frame/MCLKS_PER_68K); |
d0cacb4ade0b
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418
diff
changeset
|
320 io_adjust_cycles(gen->ports+1, v_context->cycles/MCLKS_PER_68K, mclks_per_frame/MCLKS_PER_68K); |
d0cacb4ade0b
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418
diff
changeset
|
321 io_adjust_cycles(gen->ports+2, v_context->cycles/MCLKS_PER_68K, mclks_per_frame/MCLKS_PER_68K); |
344
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diff
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|
322 if (busack_cycle != CYCLE_NEVER) { |
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diff
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|
323 if (busack_cycle > mclks_per_frame/MCLKS_PER_68K) { |
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|
324 busack_cycle -= mclks_per_frame/MCLKS_PER_68K; |
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343
diff
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|
325 } else { |
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diff
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|
326 busack_cycle = CYCLE_NEVER; |
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343
diff
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|
327 busack = new_busack; |
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diff
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|
328 } |
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diff
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|
329 } |
149
139e5dcd6aa3
Make writes to control and data port block when DMA is in progress
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144
diff
changeset
|
330 } |
139e5dcd6aa3
Make writes to control and data port block when DMA is in progress
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144
diff
changeset
|
331 } |
139e5dcd6aa3
Make writes to control and data port block when DMA is in progress
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144
diff
changeset
|
332 if (blocked < 0) { |
139e5dcd6aa3
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diff
changeset
|
333 blocked = vdp_control_port_write(v_context, value); |
139e5dcd6aa3
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diff
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|
334 } else { |
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Make writes to control and data port block when DMA is in progress
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diff
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|
335 blocked = 0; |
139e5dcd6aa3
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diff
changeset
|
336 } |
139e5dcd6aa3
Make writes to control and data port block when DMA is in progress
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diff
changeset
|
337 } |
139e5dcd6aa3
Make writes to control and data port block when DMA is in progress
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diff
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|
338 context->current_cycle = v_context->cycles / MCLKS_PER_68K; |
88
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diff
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|
339 } else { |
186
02e25abe2dcd
Cleanup VINT code and fix bug in which VINT cycle would be set incorrectly after a VDP control port write
Mike Pavone <pavone@retrodev.com>
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185
diff
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|
340 adjust_int_cycle(context, v_context); |
88
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|
341 } |
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|
342 } else { |
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|
343 printf("Illegal write to HV Counter port %X\n", vdp_port); |
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|
344 exit(1); |
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|
345 } |
345
29d2ca563499
Don't sync the 68K clock to the VDP clock unless the 68K had to wait for the VDP. This unfortunately breaks the direct color DMA demos, but should be more correct overall.
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344
diff
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|
346 if (v_context->cycles != before_cycle) { |
450
3758bcdae5de
Fix bug that caused a DMA fill to start after another DMA operation completed if the FIFO is not empty
Mike Pavone <pavone@retrodev.com>
parents:
447
diff
changeset
|
347 printf("68K paused for %d cycles at cycle %d\n", v_context->cycles / MCLKS_PER_68K - context->current_cycle, context->current_cycle); |
345
29d2ca563499
Don't sync the 68K clock to the VDP clock unless the 68K had to wait for the VDP. This unfortunately breaks the direct color DMA demos, but should be more correct overall.
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344
diff
changeset
|
348 context->current_cycle = v_context->cycles / MCLKS_PER_68K; |
29d2ca563499
Don't sync the 68K clock to the VDP clock unless the 68K had to wait for the VDP. This unfortunately breaks the direct color DMA demos, but should be more correct overall.
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344
diff
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|
349 } |
88
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|
350 } else if (vdp_port < 0x18) { |
354
15dd6418fe67
Initial PSG support. Mostly works, noise channel is borked though.
Mike Pavone <pavone@retrodev.com>
parents:
351
diff
changeset
|
351 genesis_context * gen = context->system; |
380
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352 sync_sound(gen, context->current_cycle * MCLKS_PER_68K); |
354
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353 psg_write(gen->psg, value); |
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354 } else { |
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355 //TODO: Implement undocumented test register(s) |
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356 } |
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357 return context; |
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358 } |
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359 |
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360 m68k_context * vdp_port_write_b(uint32_t vdp_port, m68k_context * context, uint8_t value) |
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361 { |
357
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362 return vdp_port_write(vdp_port, context, vdp_port < 0x10 ? value | value << 8 : ((vdp_port & 1) ? value : 0)); |
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363 } |
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364 |
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365 z80_context * z80_vdp_port_write(uint16_t vdp_port, z80_context * context, uint8_t value) |
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366 { |
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367 genesis_context * gen = context->system; |
358
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368 if (vdp_port & 0xE0) { |
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369 printf("machine freeze due to write to Z80 address %X\n", 0x7F00 | vdp_port); |
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370 exit(1); |
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371 } |
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372 if (vdp_port < 0x10) { |
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373 //These probably won't currently interact well with the 68K accessing the VDP |
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374 vdp_run_context(gen->vdp, context->current_cycle * MCLKS_PER_Z80); |
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375 if (vdp_port < 4) { |
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376 vdp_data_port_write(gen->vdp, value << 8 | value); |
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377 } else if (vdp_port < 8) { |
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378 vdp_control_port_write(gen->vdp, value << 8 | value); |
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379 } else { |
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380 printf("Illegal write to HV Counter port %X\n", vdp_port); |
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381 exit(1); |
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382 } |
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383 } else if (vdp_port < 0x18) { |
380
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384 sync_sound(gen, context->current_cycle * MCLKS_PER_Z80); |
358
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385 psg_write(gen->psg, value); |
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386 } else { |
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387 //TODO: Implement undocumented test register(s) |
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388 } |
357
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389 return context; |
343
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390 } |
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391 |
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392 uint16_t vdp_port_read(uint32_t vdp_port, m68k_context * context) |
88
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393 { |
343
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394 if (vdp_port & 0x2700E0) { |
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395 printf("machine freeze due to read from address %X\n", 0xC00000 | vdp_port); |
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396 exit(1); |
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397 } |
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398 vdp_port &= 0x1F; |
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399 uint16_t value; |
198
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400 sync_components(context, 0); |
263
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401 vdp_context * v_context = context->video_context; |
88
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402 if (vdp_port < 0x10) { |
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403 if (vdp_port < 4) { |
343
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404 value = vdp_data_port_read(v_context); |
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405 } else if(vdp_port < 8) { |
343
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406 value = vdp_control_port_read(v_context); |
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407 } else { |
343
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408 value = vdp_hv_counter_read(v_context); |
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409 //printf("HV Counter: %X at cycle %d\n", value, v_context->cycles); |
88
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410 } |
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411 context->current_cycle = v_context->cycles/MCLKS_PER_68K; |
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|
412 } else { |
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|
413 printf("Illegal read from PSG or test register port %X\n", vdp_port); |
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|
414 exit(1); |
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|
415 } |
343
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|
416 return value; |
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|
417 } |
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|
418 |
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|
419 uint8_t vdp_port_read_b(uint32_t vdp_port, m68k_context * context) |
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|
420 { |
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421 uint16_t value = vdp_port_read(vdp_port, context); |
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422 if (vdp_port & 1) { |
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|
423 return value; |
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|
424 } else { |
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|
425 return value >> 8; |
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|
426 } |
88
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|
427 } |
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|
428 |
279
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276
diff
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|
429 uint32_t zram_counter = 0; |
289
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diff
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|
430 #define Z80_ACK_DELAY 3 |
336
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diff
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|
431 #define Z80_BUSY_DELAY 1//TODO: Find the actual value for this |
289
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|
432 #define Z80_REQ_BUSY 1 |
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|
433 #define Z80_REQ_ACK 0 |
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|
434 #define Z80_RES_BUSACK reset |
279
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|
435 |
88
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|
436 m68k_context * io_write(uint32_t location, m68k_context * context, uint8_t value) |
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437 { |
288
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diff
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|
438 genesis_context * gen = context->system; |
153
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149
diff
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|
439 if (location < 0x10000) { |
336
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335
diff
changeset
|
440 if (busack_cycle <= context->current_cycle) { |
153
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diff
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|
441 busack = new_busack; |
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|
442 busack_cycle = CYCLE_NEVER; |
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|
443 } |
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149
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|
444 if (!(busack || reset)) { |
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diff
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|
445 location &= 0x7FFF; |
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|
446 if (location < 0x4000) { |
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|
447 z80_ram[location & 0x1FFF] = value; |
288
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|
448 z80_handle_code_write(location & 0x1FFF, gen->z80); |
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|
449 } else if (location < 0x6000) { |
380
1c8d74f2ab0b
Make the PSG and YM2612 use the master clock internal with an increment based on clock divider so that they stay perflectly in sync. Run both the PSG and YM2612 whenver one of them needs to be run.
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|
450 sync_sound(gen, context->current_cycle * MCLKS_PER_68K); |
288
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|
451 if (location & 1) { |
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|
452 ym_data_write(gen->ym, value); |
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|
453 } else if(location & 2) { |
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diff
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|
454 ym_address_write_part2(gen->ym, value); |
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diff
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|
455 } else { |
a8ee7934a1f8
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|
456 ym_address_write_part1(gen->ym, value); |
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|
457 } |
405
042c4ba4a838
Implement writes from 68K to Z80 bank register and make reads from port c control register return 0 again
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parents:
404
diff
changeset
|
458 } else if (location == 0x6000) { |
042c4ba4a838
Implement writes from 68K to Z80 bank register and make reads from port c control register return 0 again
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404
diff
changeset
|
459 gen->z80->bank_reg = (gen->z80->bank_reg >> 1 | value << 8) & 0x1FF; |
042c4ba4a838
Implement writes from 68K to Z80 bank register and make reads from port c control register return 0 again
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404
diff
changeset
|
460 if (gen->z80->bank_reg < 0x80) { |
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Implement writes from 68K to Z80 bank register and make reads from port c control register return 0 again
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404
diff
changeset
|
461 gen->z80->mem_pointers[1] = (gen->z80->bank_reg << 15) + ((char *)gen->z80->mem_pointers[2]); |
042c4ba4a838
Implement writes from 68K to Z80 bank register and make reads from port c control register return 0 again
Mike Pavone <pavone@retrodev.com>
parents:
404
diff
changeset
|
462 } else { |
042c4ba4a838
Implement writes from 68K to Z80 bank register and make reads from port c control register return 0 again
Mike Pavone <pavone@retrodev.com>
parents:
404
diff
changeset
|
463 gen->z80->mem_pointers[1] = NULL; |
042c4ba4a838
Implement writes from 68K to Z80 bank register and make reads from port c control register return 0 again
Mike Pavone <pavone@retrodev.com>
parents:
404
diff
changeset
|
464 } |
395
0b5f93358a93
Add debugger command for saving Z80 RAM to a file
Mike Pavone <pavone@retrodev.com>
parents:
392
diff
changeset
|
465 } else { |
0b5f93358a93
Add debugger command for saving Z80 RAM to a file
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parents:
392
diff
changeset
|
466 printf("68K write to unhandled Z80 address %X\n", location); |
0b5f93358a93
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392
diff
changeset
|
467 exit(1); |
153
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149
diff
changeset
|
468 } |
88
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parents:
diff
changeset
|
469 } |
c339559f1d4f
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parents:
diff
changeset
|
470 } else { |
153
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parents:
149
diff
changeset
|
471 location &= 0x1FFF; |
42c031184e8a
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parents:
149
diff
changeset
|
472 if (location < 0x100) { |
42c031184e8a
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parents:
149
diff
changeset
|
473 switch(location/2) |
42c031184e8a
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parents:
149
diff
changeset
|
474 { |
42c031184e8a
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149
diff
changeset
|
475 case 0x1: |
421
d0cacb4ade0b
Move IO code to a separate file and do a tiny bit of refactoring
Mike Pavone <pavone@retrodev.com>
parents:
418
diff
changeset
|
476 io_data_write(gen->ports, value, context->current_cycle); |
153
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149
diff
changeset
|
477 break; |
42c031184e8a
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149
diff
changeset
|
478 case 0x2: |
421
d0cacb4ade0b
Move IO code to a separate file and do a tiny bit of refactoring
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418
diff
changeset
|
479 io_data_write(gen->ports+1, value, context->current_cycle); |
153
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diff
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|
480 break; |
421
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parents:
418
diff
changeset
|
481 case 0x3: |
d0cacb4ade0b
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parents:
418
diff
changeset
|
482 io_data_write(gen->ports+2, value, context->current_cycle); |
153
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parents:
149
diff
changeset
|
483 break; |
42c031184e8a
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149
diff
changeset
|
484 case 0x4: |
421
d0cacb4ade0b
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parents:
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diff
changeset
|
485 gen->ports[0].control = value; |
153
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diff
changeset
|
486 break; |
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diff
changeset
|
487 case 0x5: |
421
d0cacb4ade0b
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418
diff
changeset
|
488 gen->ports[1].control = value; |
d0cacb4ade0b
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parents:
418
diff
changeset
|
489 break; |
d0cacb4ade0b
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parents:
418
diff
changeset
|
490 case 0x6: |
d0cacb4ade0b
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418
diff
changeset
|
491 gen->ports[2].control = value; |
153
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|
492 break; |
88
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|
493 } |
153
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149
diff
changeset
|
494 } else { |
42c031184e8a
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diff
changeset
|
495 if (location == 0x1100) { |
288
a8ee7934a1f8
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Mike Pavone <pavone@retrodev.com>
parents:
280
diff
changeset
|
496 sync_z80(gen->z80, context->current_cycle * MCLKS_PER_68K); |
336
87b65e5ce1ab
Fix a stupid bug in z80 busreq acknowledge delay code and make some small improvements there too
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335
diff
changeset
|
497 if (busack_cycle <= context->current_cycle) { |
153
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diff
changeset
|
498 busack = new_busack; |
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diff
changeset
|
499 busack_cycle = CYCLE_NEVER; |
88
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|
500 } |
153
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diff
changeset
|
501 if (value & 1) { |
271
969ee17471c5
Protect debug prints for busreq/reset regs with appropriate macros
Mike Pavone <pavone@retrodev.com>
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268
diff
changeset
|
502 dputs("bus requesting Z80"); |
447
e730fc040169
Fix performance regression from stop instruction work
Mike Pavone <pavone@retrodev.com>
parents:
446
diff
changeset
|
503 |
336
87b65e5ce1ab
Fix a stupid bug in z80 busreq acknowledge delay code and make some small improvements there too
Mike Pavone <pavone@retrodev.com>
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335
diff
changeset
|
504 if(!reset && !busreq) { |
289
1cc0850ab6bc
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288
diff
changeset
|
505 busack_cycle = ((gen->z80->current_cycle + Z80_ACK_DELAY) * MCLKS_PER_Z80) / MCLKS_PER_68K;//context->current_cycle + Z80_ACK_DELAY; |
1cc0850ab6bc
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288
diff
changeset
|
506 new_busack = Z80_REQ_ACK; |
153
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149
diff
changeset
|
507 } |
364
62177cc39049
Incredibly broken YM2612 support plus a fix to Z80 bus request
Mike Pavone <pavone@retrodev.com>
parents:
362
diff
changeset
|
508 busreq = 1; |
153
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149
diff
changeset
|
509 } else { |
260
625f8e4d5fd2
Initial stab at integartiong Z80 core
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parents:
215
diff
changeset
|
510 if (busreq) { |
271
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268
diff
changeset
|
511 dputs("releasing z80 bus"); |
280 | 512 #ifdef DO_DEBUG_PRINT |
279
6be6056735a9
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Mike Pavone <pavone@retrodev.com>
parents:
276
diff
changeset
|
513 char fname[20]; |
6be6056735a9
Fix native address lookup in bannked memory area
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parents:
276
diff
changeset
|
514 sprintf(fname, "zram-%d", zram_counter++); |
6be6056735a9
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parents:
276
diff
changeset
|
515 FILE * f = fopen(fname, "wb"); |
6be6056735a9
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276
diff
changeset
|
516 fwrite(z80_ram, 1, sizeof(z80_ram), f); |
6be6056735a9
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276
diff
changeset
|
517 fclose(f); |
280 | 518 #endif |
336
87b65e5ce1ab
Fix a stupid bug in z80 busreq acknowledge delay code and make some small improvements there too
Mike Pavone <pavone@retrodev.com>
parents:
335
diff
changeset
|
519 busack_cycle = ((gen->z80->current_cycle + Z80_BUSY_DELAY) * MCLKS_PER_Z80) / MCLKS_PER_68K; |
87b65e5ce1ab
Fix a stupid bug in z80 busreq acknowledge delay code and make some small improvements there too
Mike Pavone <pavone@retrodev.com>
parents:
335
diff
changeset
|
520 new_busack = Z80_REQ_BUSY; |
87b65e5ce1ab
Fix a stupid bug in z80 busreq acknowledge delay code and make some small improvements there too
Mike Pavone <pavone@retrodev.com>
parents:
335
diff
changeset
|
521 busreq = 0; |
260
625f8e4d5fd2
Initial stab at integartiong Z80 core
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parents:
215
diff
changeset
|
522 } |
289
1cc0850ab6bc
Hopefully more correct implementation of the Z80 busack status
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parents:
288
diff
changeset
|
523 //busack_cycle = CYCLE_NEVER; |
1cc0850ab6bc
Hopefully more correct implementation of the Z80 busack status
Mike Pavone <pavone@retrodev.com>
parents:
288
diff
changeset
|
524 //busack = Z80_REQ_BUSY; |
447
e730fc040169
Fix performance regression from stop instruction work
Mike Pavone <pavone@retrodev.com>
parents:
446
diff
changeset
|
525 |
88
c339559f1d4f
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diff
changeset
|
526 } |
153
42c031184e8a
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149
diff
changeset
|
527 } else if (location == 0x1200) { |
288
a8ee7934a1f8
Add a YM2612 stub implementation with just timers and status registers so that games that depend on it can run.
Mike Pavone <pavone@retrodev.com>
parents:
280
diff
changeset
|
528 sync_z80(gen->z80, context->current_cycle * MCLKS_PER_68K); |
153
42c031184e8a
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parents:
149
diff
changeset
|
529 if (value & 1) { |
42c031184e8a
Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents:
149
diff
changeset
|
530 if (reset && busreq) { |
42c031184e8a
Implement access to Z80 RAM
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parents:
149
diff
changeset
|
531 new_busack = 0; |
289
1cc0850ab6bc
Hopefully more correct implementation of the Z80 busack status
Mike Pavone <pavone@retrodev.com>
parents:
288
diff
changeset
|
532 busack_cycle = ((gen->z80->current_cycle + Z80_ACK_DELAY) * MCLKS_PER_Z80) / MCLKS_PER_68K;//context->current_cycle + Z80_ACK_DELAY; |
153
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Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents:
149
diff
changeset
|
533 } |
260
625f8e4d5fd2
Initial stab at integartiong Z80 core
Mike Pavone <pavone@retrodev.com>
parents:
215
diff
changeset
|
534 //TODO: Deal with the scenario in which reset is not asserted long enough |
625f8e4d5fd2
Initial stab at integartiong Z80 core
Mike Pavone <pavone@retrodev.com>
parents:
215
diff
changeset
|
535 if (reset) { |
625f8e4d5fd2
Initial stab at integartiong Z80 core
Mike Pavone <pavone@retrodev.com>
parents:
215
diff
changeset
|
536 need_reset = 1; |
625f8e4d5fd2
Initial stab at integartiong Z80 core
Mike Pavone <pavone@retrodev.com>
parents:
215
diff
changeset
|
537 //TODO: Add necessary delay between release of reset and start of execution |
288
a8ee7934a1f8
Add a YM2612 stub implementation with just timers and status registers so that games that depend on it can run.
Mike Pavone <pavone@retrodev.com>
parents:
280
diff
changeset
|
538 gen->z80->current_cycle = (context->current_cycle * MCLKS_PER_68K) / MCLKS_PER_Z80; |
260
625f8e4d5fd2
Initial stab at integartiong Z80 core
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parents:
215
diff
changeset
|
539 } |
153
42c031184e8a
Implement access to Z80 RAM
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parents:
149
diff
changeset
|
540 reset = 0; |
42c031184e8a
Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents:
149
diff
changeset
|
541 } else { |
42c031184e8a
Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents:
149
diff
changeset
|
542 reset = 1; |
42c031184e8a
Implement access to Z80 RAM
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parents:
149
diff
changeset
|
543 } |
88
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
544 } |
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
545 } |
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
546 } |
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
547 return context; |
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
548 } |
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
549 |
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
550 m68k_context * io_write_w(uint32_t location, m68k_context * context, uint16_t value) |
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
551 { |
404
88fa2ad53e64
Minor refactor of io_read functions to avoid duplication of logic between byte and word versions
Mike Pavone <pavone@retrodev.com>
parents:
402
diff
changeset
|
552 if (location < 0x10000 || (location & 0x1FFF) >= 0x100) { |
88fa2ad53e64
Minor refactor of io_read functions to avoid duplication of logic between byte and word versions
Mike Pavone <pavone@retrodev.com>
parents:
402
diff
changeset
|
553 return io_write(location, context, value >> 8); |
88
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
554 } else { |
404
88fa2ad53e64
Minor refactor of io_read functions to avoid duplication of logic between byte and word versions
Mike Pavone <pavone@retrodev.com>
parents:
402
diff
changeset
|
555 return io_write(location, context, value); |
88
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
556 } |
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
557 } |
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
558 |
130
0bdbffa9fe90
Make version register return correct value for USA
Mike Pavone <pavone@retrodev.com>
parents:
115
diff
changeset
|
559 #define USA 0x80 |
0bdbffa9fe90
Make version register return correct value for USA
Mike Pavone <pavone@retrodev.com>
parents:
115
diff
changeset
|
560 #define JAP 0x00 |
0bdbffa9fe90
Make version register return correct value for USA
Mike Pavone <pavone@retrodev.com>
parents:
115
diff
changeset
|
561 #define EUR 0xC0 |
0bdbffa9fe90
Make version register return correct value for USA
Mike Pavone <pavone@retrodev.com>
parents:
115
diff
changeset
|
562 #define NO_DISK 0x20 |
0bdbffa9fe90
Make version register return correct value for USA
Mike Pavone <pavone@retrodev.com>
parents:
115
diff
changeset
|
563 uint8_t version_reg = NO_DISK | USA; |
0bdbffa9fe90
Make version register return correct value for USA
Mike Pavone <pavone@retrodev.com>
parents:
115
diff
changeset
|
564 |
343
467bfa17004a
Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents:
342
diff
changeset
|
565 uint8_t io_read(uint32_t location, m68k_context * context) |
88
c339559f1d4f
Forgot to add blastem main file earlier
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parents:
diff
changeset
|
566 { |
343
467bfa17004a
Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents:
342
diff
changeset
|
567 uint8_t value; |
288
a8ee7934a1f8
Add a YM2612 stub implementation with just timers and status registers so that games that depend on it can run.
Mike Pavone <pavone@retrodev.com>
parents:
280
diff
changeset
|
568 genesis_context *gen = context->system; |
153
42c031184e8a
Implement access to Z80 RAM
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parents:
149
diff
changeset
|
569 if (location < 0x10000) { |
336
87b65e5ce1ab
Fix a stupid bug in z80 busreq acknowledge delay code and make some small improvements there too
Mike Pavone <pavone@retrodev.com>
parents:
335
diff
changeset
|
570 if (busack_cycle <= context->current_cycle) { |
153
42c031184e8a
Implement access to Z80 RAM
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parents:
149
diff
changeset
|
571 busack = new_busack; |
42c031184e8a
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149
diff
changeset
|
572 busack_cycle = CYCLE_NEVER; |
42c031184e8a
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149
diff
changeset
|
573 } |
289
1cc0850ab6bc
Hopefully more correct implementation of the Z80 busack status
Mike Pavone <pavone@retrodev.com>
parents:
288
diff
changeset
|
574 if (!(busack==Z80_REQ_BUSY || reset)) { |
153
42c031184e8a
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parents:
149
diff
changeset
|
575 location &= 0x7FFF; |
42c031184e8a
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Mike Pavone <pavone@retrodev.com>
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149
diff
changeset
|
576 if (location < 0x4000) { |
343
467bfa17004a
Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents:
342
diff
changeset
|
577 value = z80_ram[location & 0x1FFF]; |
288
a8ee7934a1f8
Add a YM2612 stub implementation with just timers and status registers so that games that depend on it can run.
Mike Pavone <pavone@retrodev.com>
parents:
280
diff
changeset
|
578 } else if (location < 0x6000) { |
380
1c8d74f2ab0b
Make the PSG and YM2612 use the master clock internal with an increment based on clock divider so that they stay perflectly in sync. Run both the PSG and YM2612 whenver one of them needs to be run.
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579 sync_sound(gen, context->current_cycle * MCLKS_PER_68K); |
343
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580 value = ym_read_status(gen->ym); |
153
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581 } else { |
343
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582 value = 0xFF; |
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583 } |
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584 } else { |
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585 value = 0xFF; |
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586 } |
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587 } else { |
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588 location &= 0x1FFF; |
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589 if (location < 0x100) { |
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590 switch(location/2) |
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591 { |
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|
592 case 0x0: |
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593 //version bits should be 0 for now since we're not emulating TMSS |
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594 value = version_reg; |
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595 break; |
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596 case 0x1: |
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597 value = io_data_read(gen->ports, context->current_cycle); |
343
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598 break; |
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599 case 0x2: |
421
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diff
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600 value = io_data_read(gen->ports+1, context->current_cycle); |
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601 break; |
421
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Move IO code to a separate file and do a tiny bit of refactoring
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|
602 case 0x3: |
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|
603 value = io_data_read(gen->ports+2, context->current_cycle); |
343
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604 break; |
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605 case 0x4: |
421
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606 value = gen->ports[0].control; |
343
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607 break; |
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|
608 case 0x5: |
421
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609 value = gen->ports[1].control; |
343
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610 break; |
421
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611 case 0x6: |
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612 value = gen->ports[2].control; |
405
042c4ba4a838
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613 break; |
343
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614 default: |
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615 value = 0xFF; |
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616 } |
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617 } else { |
343
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618 if (location == 0x1100) { |
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619 if (busack_cycle <= context->current_cycle) { |
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620 busack = new_busack; |
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621 busack_cycle = CYCLE_NEVER; |
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622 } |
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623 value = Z80_RES_BUSACK || busack; |
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624 dprintf("Byte read of BUSREQ returned %d @ %d (reset: %d, busack: %d, busack_cycle %d)\n", value, context->current_cycle, reset, busack, busack_cycle); |
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625 } else if (location == 0x1200) { |
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626 value = !reset; |
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627 } else { |
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628 value = 0xFF; |
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629 printf("Byte read of unknown IO location: %X\n", location); |
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|
630 } |
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|
631 } |
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|
632 } |
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|
633 return value; |
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|
634 } |
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|
635 |
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636 uint16_t io_read_w(uint32_t location, m68k_context * context) |
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637 { |
404
88fa2ad53e64
Minor refactor of io_read functions to avoid duplication of logic between byte and word versions
Mike Pavone <pavone@retrodev.com>
parents:
402
diff
changeset
|
638 uint16_t value = io_read(location, context); |
88fa2ad53e64
Minor refactor of io_read functions to avoid duplication of logic between byte and word versions
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402
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|
639 if (location < 0x10000 || (location & 0x1FFF) < 0x100) { |
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Minor refactor of io_read functions to avoid duplication of logic between byte and word versions
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|
640 value = value | (value << 8); |
88
c339559f1d4f
Forgot to add blastem main file earlier
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|
641 } else { |
404
88fa2ad53e64
Minor refactor of io_read functions to avoid duplication of logic between byte and word versions
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parents:
402
diff
changeset
|
642 value <<= 8; |
88
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Forgot to add blastem main file earlier
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diff
changeset
|
643 } |
343
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|
644 return value; |
88
c339559f1d4f
Forgot to add blastem main file earlier
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changeset
|
645 } |
c339559f1d4f
Forgot to add blastem main file earlier
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parents:
diff
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|
646 |
290
171f97e70d85
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|
647 z80_context * z80_write_ym(uint16_t location, z80_context * context, uint8_t value) |
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|
648 { |
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|
649 genesis_context * gen = context->system; |
380
1c8d74f2ab0b
Make the PSG and YM2612 use the master clock internal with an increment based on clock divider so that they stay perflectly in sync. Run both the PSG and YM2612 whenver one of them needs to be run.
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|
650 sync_sound(gen, context->current_cycle * MCLKS_PER_Z80); |
290
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|
651 if (location & 1) { |
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|
652 ym_data_write(gen->ym, value); |
171f97e70d85
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|
653 } else if (location & 2) { |
171f97e70d85
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|
654 ym_address_write_part2(gen->ym, value); |
171f97e70d85
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|
655 } else { |
171f97e70d85
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changeset
|
656 ym_address_write_part1(gen->ym, value); |
171f97e70d85
Implement writes from Z80 to YM-2612
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289
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|
657 } |
171f97e70d85
Implement writes from Z80 to YM-2612
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diff
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|
658 return context; |
171f97e70d85
Implement writes from Z80 to YM-2612
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289
diff
changeset
|
659 } |
171f97e70d85
Implement writes from Z80 to YM-2612
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parents:
289
diff
changeset
|
660 |
171f97e70d85
Implement writes from Z80 to YM-2612
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289
diff
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|
661 uint8_t z80_read_ym(uint16_t location, z80_context * context) |
171f97e70d85
Implement writes from Z80 to YM-2612
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|
662 { |
171f97e70d85
Implement writes from Z80 to YM-2612
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289
diff
changeset
|
663 genesis_context * gen = context->system; |
380
1c8d74f2ab0b
Make the PSG and YM2612 use the master clock internal with an increment based on clock divider so that they stay perflectly in sync. Run both the PSG and YM2612 whenver one of them needs to be run.
Mike Pavone <pavone@retrodev.com>
parents:
374
diff
changeset
|
664 sync_sound(gen, context->current_cycle * MCLKS_PER_Z80); |
290
171f97e70d85
Implement writes from Z80 to YM-2612
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|
665 return ym_read_status(gen->ym); |
171f97e70d85
Implement writes from Z80 to YM-2612
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diff
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|
666 } |
171f97e70d85
Implement writes from Z80 to YM-2612
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changeset
|
667 |
351
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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diff
changeset
|
668 uint16_t read_sram_w(uint32_t address, m68k_context * context) |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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|
669 { |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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diff
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|
670 genesis_context * gen = context->system; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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diff
changeset
|
671 address &= gen->save_ram_mask; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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diff
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|
672 switch(gen->save_flags) |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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diff
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|
673 { |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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diff
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|
674 case RAM_FLAG_BOTH: |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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|
675 return gen->save_ram[address] << 8 | gen->save_ram[address+1]; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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|
676 case RAM_FLAG_EVEN: |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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diff
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|
677 return gen->save_ram[address >> 1] << 8 | 0xFF; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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|
678 case RAM_FLAG_ODD: |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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diff
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|
679 return gen->save_ram[address >> 1] | 0xFF00; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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diff
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|
680 } |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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|
681 return 0xFFFF;//We should never get here |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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diff
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|
682 } |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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diff
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|
683 |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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|
684 uint8_t read_sram_b(uint32_t address, m68k_context * context) |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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diff
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|
685 { |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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|
686 genesis_context * gen = context->system; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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diff
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|
687 address &= gen->save_ram_mask; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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|
688 switch(gen->save_flags) |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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|
689 { |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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|
690 case RAM_FLAG_BOTH: |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
changeset
|
691 return gen->save_ram[address]; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
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346
diff
changeset
|
692 case RAM_FLAG_EVEN: |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
693 if (address & 1) { |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
694 return 0xFF; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
695 } else { |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
696 return gen->save_ram[address >> 1]; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
697 } |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
698 case RAM_FLAG_ODD: |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
699 if (address & 1) { |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
700 return gen->save_ram[address >> 1]; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
701 } else { |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
702 return 0xFF; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
703 } |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
704 } |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
705 return 0xFF;//We should never get here |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
706 } |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
707 |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
708 m68k_context * write_sram_area_w(uint32_t address, m68k_context * context, uint16_t value) |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
709 { |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
710 genesis_context * gen = context->system; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
711 if ((gen->bank_regs[0] & 0x3) == 1) { |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
712 address &= gen->save_ram_mask; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
713 switch(gen->save_flags) |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
714 { |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
715 case RAM_FLAG_BOTH: |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
716 gen->save_ram[address] = value >> 8; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
717 gen->save_ram[address+1] = value; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
718 break; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
719 case RAM_FLAG_EVEN: |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
720 gen->save_ram[address >> 1] = value >> 8; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
721 break; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
722 case RAM_FLAG_ODD: |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
723 gen->save_ram[address >> 1] = value; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
724 break; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
725 } |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
726 } |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
727 return context; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
728 } |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
729 |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
730 m68k_context * write_sram_area_b(uint32_t address, m68k_context * context, uint8_t value) |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
731 { |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
732 genesis_context * gen = context->system; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
733 if ((gen->bank_regs[0] & 0x3) == 1) { |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
734 address &= gen->save_ram_mask; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
735 switch(gen->save_flags) |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
736 { |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
737 case RAM_FLAG_BOTH: |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
738 gen->save_ram[address] = value; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
739 break; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
740 case RAM_FLAG_EVEN: |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
741 if (!(address & 1)) { |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
742 gen->save_ram[address >> 1] = value; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
743 } |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
744 break; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
745 case RAM_FLAG_ODD: |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
746 if (address & 1) { |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
747 gen->save_ram[address >> 1] = value; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
748 } |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
749 break; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
750 } |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
751 } |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
752 return context; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
753 } |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
754 |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
755 m68k_context * write_bank_reg_w(uint32_t address, m68k_context * context, uint16_t value) |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
756 { |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
757 genesis_context * gen = context->system; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
758 address &= 0xE; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
759 address >>= 1; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
760 gen->bank_regs[address] = value; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
761 if (!address) { |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
762 if (value & 1) { |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
763 context->mem_pointers[2] = NULL; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
764 } else { |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
765 context->mem_pointers[2] = cart + 0x200000/2; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
766 } |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
767 } |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
768 return context; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
769 } |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
770 |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
771 m68k_context * write_bank_reg_b(uint32_t address, m68k_context * context, uint8_t value) |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
772 { |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
773 if (address & 1) { |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
774 genesis_context * gen = context->system; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
775 address &= 0xE; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
776 address >>= 1; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
777 gen->bank_regs[address] = value; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
778 if (!address) { |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
779 if (value & 1) { |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
780 context->mem_pointers[2] = NULL; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
781 } else { |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
782 context->mem_pointers[2] = cart + 0x200000/2; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
783 } |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
784 } |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
785 } |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
786 return context; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
787 } |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
788 |
184
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
789 typedef struct bp_def { |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
790 struct bp_def * next; |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
791 uint32_t address; |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
792 uint32_t index; |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
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166
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|
793 } bp_def; |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
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|
794 |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
795 bp_def * breakpoints = NULL; |
366
836585d389b8
Partial implementation of Z80 debugger
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parents:
364
diff
changeset
|
796 bp_def * zbreakpoints = NULL; |
184
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
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changeset
|
797 uint32_t bp_index = 0; |
366
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
798 uint32_t zbp_index = 0; |
184
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
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|
799 |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
800 bp_def ** find_breakpoint(bp_def ** cur, uint32_t address) |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
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166
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changeset
|
801 { |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
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changeset
|
802 while (*cur) { |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
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changeset
|
803 if ((*cur)->address == address) { |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
804 break; |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
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|
805 } |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
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166
diff
changeset
|
806 cur = &((*cur)->next); |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
807 } |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
808 return cur; |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
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changeset
|
809 } |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
810 |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
811 bp_def ** find_breakpoint_idx(bp_def ** cur, uint32_t index) |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
812 { |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
813 while (*cur) { |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
814 if ((*cur)->index == index) { |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
815 break; |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
816 } |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
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changeset
|
817 cur = &((*cur)->next); |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
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changeset
|
818 } |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
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changeset
|
819 return cur; |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
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|
820 } |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
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diff
changeset
|
821 |
372
5dcf7551bb36
Bunch of Z80 debugger improvements
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368
diff
changeset
|
822 typedef struct disp_def { |
5dcf7551bb36
Bunch of Z80 debugger improvements
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368
diff
changeset
|
823 struct disp_def * next; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
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changeset
|
824 char * param; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
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368
diff
changeset
|
825 uint32_t index; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
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368
diff
changeset
|
826 char format_char; |
5dcf7551bb36
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Mike Pavone <pavone@retrodev.com>
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368
diff
changeset
|
827 } disp_def; |
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Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
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368
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changeset
|
828 |
5dcf7551bb36
Bunch of Z80 debugger improvements
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368
diff
changeset
|
829 disp_def * displays = NULL; |
5dcf7551bb36
Bunch of Z80 debugger improvements
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changeset
|
830 disp_def * zdisplays = NULL; |
5dcf7551bb36
Bunch of Z80 debugger improvements
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diff
changeset
|
831 uint32_t disp_index = 0; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
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diff
changeset
|
832 uint32_t zdisp_index = 0; |
5dcf7551bb36
Bunch of Z80 debugger improvements
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368
diff
changeset
|
833 |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
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368
diff
changeset
|
834 void add_display(disp_def ** head, uint32_t *index, char format_char, char * param) |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
835 { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
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368
diff
changeset
|
836 disp_def * ndisp = malloc(sizeof(*ndisp)); |
5dcf7551bb36
Bunch of Z80 debugger improvements
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368
diff
changeset
|
837 ndisp->format_char = format_char; |
5dcf7551bb36
Bunch of Z80 debugger improvements
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parents:
368
diff
changeset
|
838 ndisp->param = strdup(param); |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
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368
diff
changeset
|
839 ndisp->next = *head; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
840 ndisp->index = *index++; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
841 *head = ndisp; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
842 } |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
843 |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
844 void remove_display(disp_def ** head, uint32_t index) |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
845 { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
846 while (*head) { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
847 if ((*head)->index == index) { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
848 disp_def * del_disp = *head; |
5dcf7551bb36
Bunch of Z80 debugger improvements
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parents:
368
diff
changeset
|
849 *head = del_disp->next; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
850 free(del_disp->param); |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
851 free(del_disp); |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
852 } else { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
853 head = &(*head)->next; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
854 } |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
855 } |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
856 } |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
857 |
184
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
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diff
changeset
|
858 char * find_param(char * buf) |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
859 { |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
860 for (; *buf; buf++) { |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
861 if (*buf == ' ') { |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
862 if (*(buf+1)) { |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
863 return buf+1; |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
864 } |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
865 } |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
866 } |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
867 return NULL; |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
868 } |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
869 |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
870 void strip_nl(char * buf) |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
871 { |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
872 for(; *buf; buf++) { |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
873 if (*buf == '\n') { |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
874 *buf = 0; |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
875 return; |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
876 } |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
877 } |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
878 } |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
879 |
372
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
880 void zdebugger_print(z80_context * context, char format_char, char * param) |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
881 { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
882 uint32_t value; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
883 char format[8]; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
884 strcpy(format, "%s: %d\n"); |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
885 switch (format_char) |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
886 { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
887 case 'x': |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
888 case 'X': |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
889 case 'd': |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
890 case 'c': |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
891 format[5] = format_char; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
892 break; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
893 case '\0': |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
894 break; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
895 default: |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
896 fprintf(stderr, "Unrecognized format character: %c\n", format_char); |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
897 } |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
898 switch (param[0]) |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
899 { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
900 case 'a': |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
901 if (param[1] == 'f') { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
902 if(param[2] == '\'') { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
903 value = context->alt_regs[Z80_A] << 8; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
904 value |= context->alt_flags[ZF_S] << 7; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
905 value |= context->alt_flags[ZF_Z] << 6; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
906 value |= context->alt_flags[ZF_H] << 4; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
907 value |= context->alt_flags[ZF_PV] << 2; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
908 value |= context->alt_flags[ZF_N] << 1; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
909 value |= context->alt_flags[ZF_C]; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
910 } else { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
911 value = context->regs[Z80_A] << 8; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
912 value |= context->flags[ZF_S] << 7; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
913 value |= context->flags[ZF_Z] << 6; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
914 value |= context->flags[ZF_H] << 4; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
915 value |= context->flags[ZF_PV] << 2; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
916 value |= context->flags[ZF_N] << 1; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
917 value |= context->flags[ZF_C]; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
918 } |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
919 } else if(param[1] == '\'') { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
920 value = context->alt_regs[Z80_A]; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
921 } else { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
922 value = context->regs[Z80_A]; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
923 } |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
924 break; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
925 case 'b': |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
926 if (param[1] == 'c') { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
927 if(param[2] == '\'') { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
928 value = context->alt_regs[Z80_B] << 8; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
929 value |= context->alt_regs[Z80_C]; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
930 } else { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
931 value = context->regs[Z80_B] << 8; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
932 value |= context->regs[Z80_C]; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
933 } |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
934 } else if(param[1] == '\'') { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
935 value = context->alt_regs[Z80_B]; |
392
1b80b90399da
Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
380
diff
changeset
|
936 } else if(param[1] == 'a') { |
1b80b90399da
Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
380
diff
changeset
|
937 value = context->bank_reg << 15; |
372
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
938 } else { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
939 value = context->regs[Z80_B]; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
940 } |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
941 break; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
942 case 'c': |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
943 if(param[1] == '\'') { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
944 value = context->alt_regs[Z80_C]; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
945 } else if(param[1] == 'y') { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
946 value = context->current_cycle; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
947 } else { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
948 value = context->regs[Z80_C]; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
949 } |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
950 break; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
951 case 'd': |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
952 if (param[1] == 'e') { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
953 if(param[2] == '\'') { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
954 value = context->alt_regs[Z80_D] << 8; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
955 value |= context->alt_regs[Z80_E]; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
956 } else { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
957 value = context->regs[Z80_D] << 8; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
958 value |= context->regs[Z80_E]; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
959 } |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
960 } else if(param[1] == '\'') { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
961 value = context->alt_regs[Z80_D]; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
962 } else { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
963 value = context->regs[Z80_D]; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
964 } |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
965 break; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
966 case 'e': |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
967 if(param[1] == '\'') { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
968 value = context->alt_regs[Z80_E]; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
969 } else { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
970 value = context->regs[Z80_E]; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
971 } |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
972 break; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
973 case 'f': |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
974 if(param[2] == '\'') { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
975 value = context->alt_flags[ZF_S] << 7; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
976 value |= context->alt_flags[ZF_Z] << 6; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
977 value |= context->alt_flags[ZF_H] << 4; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
978 value |= context->alt_flags[ZF_PV] << 2; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
979 value |= context->alt_flags[ZF_N] << 1; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
980 value |= context->alt_flags[ZF_C]; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
981 } else { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
982 value = context->flags[ZF_S] << 7; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
983 value |= context->flags[ZF_Z] << 6; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
984 value |= context->flags[ZF_H] << 4; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
985 value |= context->flags[ZF_PV] << 2; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
986 value |= context->flags[ZF_N] << 1; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
987 value |= context->flags[ZF_C]; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
988 } |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
989 break; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
990 case 'h': |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
991 if (param[1] == 'l') { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
992 if(param[2] == '\'') { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
993 value = context->alt_regs[Z80_H] << 8; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
994 value |= context->alt_regs[Z80_L]; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
995 } else { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
996 value = context->regs[Z80_H] << 8; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
997 value |= context->regs[Z80_L]; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
998 } |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
999 } else if(param[1] == '\'') { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1000 value = context->alt_regs[Z80_H]; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1001 } else { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1002 value = context->regs[Z80_H]; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1003 } |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1004 break; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1005 case 'l': |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1006 if(param[1] == '\'') { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1007 value = context->alt_regs[Z80_L]; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1008 } else { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1009 value = context->regs[Z80_L]; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1010 } |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1011 break; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1012 case 'i': |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1013 if(param[1] == 'x') { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1014 if (param[2] == 'h') { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1015 value = context->regs[Z80_IXH]; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1016 } else if(param[2] == 'l') { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1017 value = context->regs[Z80_IXL]; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1018 } else { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1019 value = context->regs[Z80_IXH] << 8; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1020 value |= context->regs[Z80_IXL]; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1021 } |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1022 } else if(param[1] == 'y') { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1023 if (param[2] == 'h') { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1024 value = context->regs[Z80_IYH]; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1025 } else if(param[2] == 'l') { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1026 value = context->regs[Z80_IYL]; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1027 } else { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1028 value = context->regs[Z80_IYH] << 8; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1029 value |= context->regs[Z80_IYL]; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1030 } |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1031 } else if(param[1] == 'n') { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1032 value = context->int_cycle; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1033 } else if(param[1] == 'f' && param[2] == 'f' && param[3] == '1') { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1034 value = context->iff1; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1035 } else if(param[1] == 'f' && param[2] == 'f' && param[3] == '2') { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1036 value = context->iff2; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1037 } else { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1038 value = context->im; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1039 } |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1040 break; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1041 case 's': |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1042 if (param[1] == 'p') { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1043 value = context->sp; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1044 } |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1045 break; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1046 case '0': |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1047 if (param[1] == 'x') { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1048 uint16_t p_addr = strtol(param+2, NULL, 16); |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1049 if (p_addr < 0x4000) { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1050 value = z80_ram[p_addr & 0x1FFF]; |
392
1b80b90399da
Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
380
diff
changeset
|
1051 } else if(p_addr >= 0x8000) { |
1b80b90399da
Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
380
diff
changeset
|
1052 uint32_t v_addr = context->bank_reg << 15; |
1b80b90399da
Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
380
diff
changeset
|
1053 v_addr += p_addr & 0x7FFF; |
1b80b90399da
Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
380
diff
changeset
|
1054 if (v_addr < 0x400000) { |
1b80b90399da
Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
380
diff
changeset
|
1055 value = cart[v_addr/2]; |
1b80b90399da
Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
380
diff
changeset
|
1056 } else if(v_addr > 0xE00000) { |
1b80b90399da
Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
380
diff
changeset
|
1057 value = ram[(v_addr & 0xFFFF)/2]; |
1b80b90399da
Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
380
diff
changeset
|
1058 } |
1b80b90399da
Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
380
diff
changeset
|
1059 if (v_addr & 1) { |
1b80b90399da
Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
380
diff
changeset
|
1060 value &= 0xFF; |
1b80b90399da
Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
380
diff
changeset
|
1061 } else { |
1b80b90399da
Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
380
diff
changeset
|
1062 value >>= 8; |
1b80b90399da
Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
380
diff
changeset
|
1063 } |
372
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1064 } |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1065 } |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1066 break; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1067 } |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1068 printf(format, param, value); |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1069 } |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1070 |
366
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1071 z80_context * zdebugger(z80_context * context, uint16_t address) |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1072 { |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1073 static char last_cmd[1024]; |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1074 char input_buf[1024]; |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1075 static uint16_t branch_t; |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1076 static uint16_t branch_f; |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1077 z80inst inst; |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1078 //Check if this is a user set breakpoint, or just a temporary one |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1079 bp_def ** this_bp = find_breakpoint(&zbreakpoints, address); |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1080 if (*this_bp) { |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1081 printf("Z80 Breakpoint %d hit\n", (*this_bp)->index); |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1082 } else { |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1083 zremove_breakpoint(context, address); |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1084 } |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1085 uint8_t * pc; |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1086 if (address < 0x4000) { |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1087 pc = z80_ram + (address & 0x1FFF); |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1088 } else if (address >= 0x8000) { |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1089 if (context->bank_reg < (0x400000 >> 15)) { |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1090 fprintf(stderr, "Entered Z80 debugger in banked memory address %X, which is not yet supported\n", address); |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1091 exit(1); |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1092 } else { |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1093 fprintf(stderr, "Entered Z80 debugger in banked memory address %X, but the bank is not pointed to a cartridge address\n", address); |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1094 exit(1); |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1095 } |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1096 } else { |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1097 fprintf(stderr, "Entered Z80 debugger at address %X\n", address); |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1098 exit(1); |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1099 } |
372
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1100 for (disp_def * cur = zdisplays; cur; cur = cur->next) { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1101 zdebugger_print(context, cur->format_char, cur->param); |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1102 } |
366
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1103 uint8_t * after_pc = z80_decode(pc, &inst); |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1104 z80_disasm(&inst, input_buf, address); |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1105 printf("%X:\t%s\n", address, input_buf); |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1106 uint16_t after = address + (after_pc-pc); |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1107 int debugging = 1; |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1108 while(debugging) { |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1109 fputs(">", stdout); |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1110 if (!fgets(input_buf, sizeof(input_buf), stdin)) { |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1111 fputs("fgets failed", stderr); |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1112 break; |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1113 } |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1114 strip_nl(input_buf); |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1115 //hitting enter repeats last command |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1116 if (input_buf[0]) { |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1117 strcpy(last_cmd, input_buf); |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1118 } else { |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1119 strcpy(input_buf, last_cmd); |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1120 } |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1121 char * param; |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1122 char format[8]; |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1123 uint32_t value; |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1124 bp_def * new_bp; |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1125 switch(input_buf[0]) |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1126 { |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1127 case 'a': |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1128 param = find_param(input_buf); |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1129 if (!param) { |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1130 fputs("a command requires a parameter\n", stderr); |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1131 break; |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1132 } |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1133 value = strtol(param, NULL, 16); |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1134 zinsert_breakpoint(context, value, (uint8_t *)zdebugger); |
392
1b80b90399da
Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
380
diff
changeset
|
1135 debugging = 0; |
366
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1136 break; |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1137 case 'b': |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1138 param = find_param(input_buf); |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1139 if (!param) { |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1140 fputs("b command requires a parameter\n", stderr); |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1141 break; |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1142 } |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1143 value = strtol(param, NULL, 16); |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1144 zinsert_breakpoint(context, value, (uint8_t *)zdebugger); |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1145 new_bp = malloc(sizeof(bp_def)); |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1146 new_bp->next = zbreakpoints; |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1147 new_bp->address = value; |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1148 new_bp->index = zbp_index++; |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1149 zbreakpoints = new_bp; |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1150 printf("Z80 Breakpoint %d set at %X\n", new_bp->index, value); |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1151 break; |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1152 case 'c': |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1153 puts("Continuing"); |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1154 debugging = 0; |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1155 break; |
372
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1156 case 'd': |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1157 if (input_buf[1] == 'i') { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1158 char format_char = 0; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1159 for(int i = 2; input_buf[i] != 0 && input_buf[i] != ' '; i++) { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1160 if (input_buf[i] == '/') { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1161 format_char = input_buf[i+1]; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1162 break; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1163 } |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1164 } |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1165 param = find_param(input_buf); |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1166 if (!param) { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1167 fputs("display command requires a parameter\n", stderr); |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1168 break; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1169 } |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1170 zdebugger_print(context, format_char, param); |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1171 add_display(&zdisplays, &zdisp_index, format_char, param); |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1172 } else if (input_buf[1] == 'e' || input_buf[1] == ' ') { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1173 param = find_param(input_buf); |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1174 if (!param) { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1175 fputs("delete command requires a parameter\n", stderr); |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1176 break; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1177 } |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1178 if (param[0] >= '0' && param[0] <= '9') { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1179 value = atoi(param); |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1180 this_bp = find_breakpoint_idx(&zbreakpoints, value); |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1181 if (!*this_bp) { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1182 fprintf(stderr, "Breakpoint %d does not exist\n", value); |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1183 break; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1184 } |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1185 new_bp = *this_bp; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1186 zremove_breakpoint(context, new_bp->address); |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1187 *this_bp = new_bp->next; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1188 free(new_bp); |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1189 } else if (param[0] == 'd') { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1190 param = find_param(param); |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1191 if (!param) { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1192 fputs("delete display command requires a parameter\n", stderr); |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1193 break; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1194 } |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1195 remove_display(&zdisplays, atoi(param)); |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1196 } |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1197 } |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1198 break; |
366
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1199 case 'n': |
392
1b80b90399da
Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
380
diff
changeset
|
1200 //TODO: Handle conditional branch instructions |
1b80b90399da
Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
380
diff
changeset
|
1201 if (inst.op == Z80_JP) { |
1b80b90399da
Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
380
diff
changeset
|
1202 if (inst.addr_mode == Z80_IMMED) { |
1b80b90399da
Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
380
diff
changeset
|
1203 after = inst.immed; |
1b80b90399da
Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
380
diff
changeset
|
1204 } else if (inst.ea_reg == Z80_HL) { |
1b80b90399da
Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
380
diff
changeset
|
1205 after = context->regs[Z80_H] << 8 | context->regs[Z80_L]; |
1b80b90399da
Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
380
diff
changeset
|
1206 } else if (inst.ea_reg == Z80_IX) { |
1b80b90399da
Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
380
diff
changeset
|
1207 after = context->regs[Z80_IXH] << 8 | context->regs[Z80_IXL]; |
1b80b90399da
Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
380
diff
changeset
|
1208 } else if (inst.ea_reg == Z80_IY) { |
1b80b90399da
Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
380
diff
changeset
|
1209 after = context->regs[Z80_IYH] << 8 | context->regs[Z80_IYL]; |
1b80b90399da
Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
380
diff
changeset
|
1210 } |
1b80b90399da
Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
380
diff
changeset
|
1211 } else if(inst.op == Z80_JR) { |
1b80b90399da
Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
380
diff
changeset
|
1212 after += inst.immed; |
1b80b90399da
Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
380
diff
changeset
|
1213 } else if(inst.op == Z80_RET) { |
1b80b90399da
Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
380
diff
changeset
|
1214 if (context->sp < 0x4000) { |
1b80b90399da
Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
380
diff
changeset
|
1215 after = z80_ram[context->sp & 0x1FFF] | z80_ram[(context->sp+1) & 0x1FFF] << 8; |
1b80b90399da
Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
380
diff
changeset
|
1216 } |
1b80b90399da
Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
380
diff
changeset
|
1217 } |
366
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1218 zinsert_breakpoint(context, after, (uint8_t *)zdebugger); |
368
c9d2a2371f5e
Make the n command in the Z80 debugger actually run the next instruction without needing a c command
Mike Pavone <pavone@retrodev.com>
parents:
366
diff
changeset
|
1219 debugging = 0; |
366
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1220 break; |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1221 case 'p': |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1222 param = find_param(input_buf); |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1223 if (!param) { |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1224 fputs("p command requires a parameter\n", stderr); |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1225 break; |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1226 } |
372
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1227 zdebugger_print(context, input_buf[1] == '/' ? input_buf[2] : 0, param); |
366
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1228 break; |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1229 case 'q': |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1230 puts("Quitting"); |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1231 exit(0); |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1232 break; |
395
0b5f93358a93
Add debugger command for saving Z80 RAM to a file
Mike Pavone <pavone@retrodev.com>
parents:
392
diff
changeset
|
1233 case 's': { |
0b5f93358a93
Add debugger command for saving Z80 RAM to a file
Mike Pavone <pavone@retrodev.com>
parents:
392
diff
changeset
|
1234 param = find_param(input_buf); |
0b5f93358a93
Add debugger command for saving Z80 RAM to a file
Mike Pavone <pavone@retrodev.com>
parents:
392
diff
changeset
|
1235 if (!param) { |
0b5f93358a93
Add debugger command for saving Z80 RAM to a file
Mike Pavone <pavone@retrodev.com>
parents:
392
diff
changeset
|
1236 fputs("s command requires a file name\n", stderr); |
0b5f93358a93
Add debugger command for saving Z80 RAM to a file
Mike Pavone <pavone@retrodev.com>
parents:
392
diff
changeset
|
1237 break; |
0b5f93358a93
Add debugger command for saving Z80 RAM to a file
Mike Pavone <pavone@retrodev.com>
parents:
392
diff
changeset
|
1238 } |
0b5f93358a93
Add debugger command for saving Z80 RAM to a file
Mike Pavone <pavone@retrodev.com>
parents:
392
diff
changeset
|
1239 FILE * f = fopen(param, "wb"); |
0b5f93358a93
Add debugger command for saving Z80 RAM to a file
Mike Pavone <pavone@retrodev.com>
parents:
392
diff
changeset
|
1240 if (f) { |
0b5f93358a93
Add debugger command for saving Z80 RAM to a file
Mike Pavone <pavone@retrodev.com>
parents:
392
diff
changeset
|
1241 if(fwrite(z80_ram, 1, sizeof(z80_ram), f) != sizeof(z80_ram)) { |
0b5f93358a93
Add debugger command for saving Z80 RAM to a file
Mike Pavone <pavone@retrodev.com>
parents:
392
diff
changeset
|
1242 fputs("Error writing file\n", stderr); |
0b5f93358a93
Add debugger command for saving Z80 RAM to a file
Mike Pavone <pavone@retrodev.com>
parents:
392
diff
changeset
|
1243 } |
0b5f93358a93
Add debugger command for saving Z80 RAM to a file
Mike Pavone <pavone@retrodev.com>
parents:
392
diff
changeset
|
1244 fclose(f); |
0b5f93358a93
Add debugger command for saving Z80 RAM to a file
Mike Pavone <pavone@retrodev.com>
parents:
392
diff
changeset
|
1245 } else { |
0b5f93358a93
Add debugger command for saving Z80 RAM to a file
Mike Pavone <pavone@retrodev.com>
parents:
392
diff
changeset
|
1246 fprintf(stderr, "Could not open %s for writing\n", param); |
0b5f93358a93
Add debugger command for saving Z80 RAM to a file
Mike Pavone <pavone@retrodev.com>
parents:
392
diff
changeset
|
1247 } |
0b5f93358a93
Add debugger command for saving Z80 RAM to a file
Mike Pavone <pavone@retrodev.com>
parents:
392
diff
changeset
|
1248 break; |
0b5f93358a93
Add debugger command for saving Z80 RAM to a file
Mike Pavone <pavone@retrodev.com>
parents:
392
diff
changeset
|
1249 } |
366
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1250 default: |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1251 fprintf(stderr, "Unrecognized debugger command %s\n", input_buf); |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1252 break; |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1253 } |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1254 } |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1255 return context; |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1256 } |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1257 |
184
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1258 m68k_context * debugger(m68k_context * context, uint32_t address) |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1259 { |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1260 static char last_cmd[1024]; |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1261 char input_buf[1024]; |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1262 static uint32_t branch_t; |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1263 static uint32_t branch_f; |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1264 m68kinst inst; |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1265 //probably not necessary, but let's play it safe |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1266 address &= 0xFFFFFF; |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1267 if (address == branch_t) { |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1268 bp_def ** f_bp = find_breakpoint(&breakpoints, branch_f); |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1269 if (!*f_bp) { |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1270 remove_breakpoint(context, branch_f); |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1271 } |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1272 branch_t = branch_f = 0; |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1273 } else if(address == branch_f) { |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1274 bp_def ** t_bp = find_breakpoint(&breakpoints, branch_t); |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1275 if (!*t_bp) { |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1276 remove_breakpoint(context, branch_t); |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1277 } |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1278 branch_t = branch_f = 0; |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1279 } |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1280 //Check if this is a user set breakpoint, or just a temporary one |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1281 bp_def ** this_bp = find_breakpoint(&breakpoints, address); |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1282 if (*this_bp) { |
366
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1283 printf("68K Breakpoint %d hit\n", (*this_bp)->index); |
184
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1284 } else { |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
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166
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|
1285 remove_breakpoint(context, address); |
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Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
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166
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1286 } |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
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166
diff
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|
1287 uint16_t * pc; |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
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166
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|
1288 if (address < 0x400000) { |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
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|
1289 pc = cart + address/2; |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
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|
1290 } else if(address > 0xE00000) { |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
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|
1291 pc = ram + (address & 0xFFFF)/2; |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
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166
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|
1292 } else { |
366
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
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364
diff
changeset
|
1293 fprintf(stderr, "Entered 68K debugger at address %X\n", address); |
184
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
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166
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|
1294 exit(1); |
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Fix a bunch of bugs in the CPU core, add a 68K debugger
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166
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1295 } |
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Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
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166
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changeset
|
1296 uint16_t * after_pc = m68k_decode(pc, &inst, address); |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
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166
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changeset
|
1297 m68k_disasm(&inst, input_buf); |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
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changeset
|
1298 printf("%X: %s\n", address, input_buf); |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
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166
diff
changeset
|
1299 uint32_t after = address + (after_pc-pc)*2; |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
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166
diff
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|
1300 int debugging = 1; |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
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166
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|
1301 while (debugging) { |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
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|
1302 fputs(">", stdout); |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
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|
1303 if (!fgets(input_buf, sizeof(input_buf), stdin)) { |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
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166
diff
changeset
|
1304 fputs("fgets failed", stderr); |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
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166
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|
1305 break; |
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Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
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|
1306 } |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
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166
diff
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|
1307 strip_nl(input_buf); |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
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166
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|
1308 //hitting enter repeats last command |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
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166
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|
1309 if (input_buf[0]) { |
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Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
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changeset
|
1310 strcpy(last_cmd, input_buf); |
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Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
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166
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|
1311 } else { |
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Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
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166
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|
1312 strcpy(input_buf, last_cmd); |
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Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
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166
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|
1313 } |
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Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1314 char * param; |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
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166
diff
changeset
|
1315 char format[8]; |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
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166
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|
1316 uint32_t value; |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
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166
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|
1317 bp_def * new_bp; |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
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166
diff
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|
1318 switch(input_buf[0]) |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
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166
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|
1319 { |
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Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
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changeset
|
1320 case 'c': |
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Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
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|
1321 puts("Continuing"); |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
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|
1322 debugging = 0; |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
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166
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|
1323 break; |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1324 case 'b': |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
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|
1325 param = find_param(input_buf); |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
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|
1326 if (!param) { |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
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166
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changeset
|
1327 fputs("b command requires a parameter\n", stderr); |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
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|
1328 break; |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
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|
1329 } |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1330 value = strtol(param, NULL, 16); |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1331 insert_breakpoint(context, value, (uint8_t *)debugger); |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1332 new_bp = malloc(sizeof(bp_def)); |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1333 new_bp->next = breakpoints; |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1334 new_bp->address = value; |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1335 new_bp->index = bp_index++; |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1336 breakpoints = new_bp; |
366
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1337 printf("68K Breakpoint %d set at %X\n", new_bp->index, value); |
184
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1338 break; |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1339 case 'a': |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1340 param = find_param(input_buf); |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
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|
1341 if (!param) { |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1342 fputs("a command requires a parameter\n", stderr); |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
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|
1343 break; |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1344 } |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1345 value = strtol(param, NULL, 16); |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1346 insert_breakpoint(context, value, (uint8_t *)debugger); |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1347 debugging = 0; |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1348 break; |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1349 case 'd': |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1350 param = find_param(input_buf); |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1351 if (!param) { |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1352 fputs("b command requires a parameter\n", stderr); |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1353 break; |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1354 } |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1355 value = atoi(param); |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1356 this_bp = find_breakpoint_idx(&breakpoints, value); |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1357 if (!*this_bp) { |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1358 fprintf(stderr, "Breakpoint %d does not exist\n", value); |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1359 break; |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1360 } |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1361 new_bp = *this_bp; |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1362 *this_bp = (*this_bp)->next; |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1363 free(new_bp); |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1364 break; |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1365 case 'p': |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1366 strcpy(format, "%s: %d\n"); |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1367 if (input_buf[1] == '/') { |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1368 switch (input_buf[2]) |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
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|
1369 { |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1370 case 'x': |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1371 case 'X': |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1372 case 'd': |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1373 case 'c': |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1374 format[5] = input_buf[2]; |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1375 break; |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1376 default: |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1377 fprintf(stderr, "Unrecognized format character: %c\n", input_buf[2]); |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
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|
1378 } |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
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166
diff
changeset
|
1379 } |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1380 param = find_param(input_buf); |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1381 if (!param) { |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1382 fputs("p command requires a parameter\n", stderr); |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1383 break; |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1384 } |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1385 if (param[0] == 'd' && param[1] >= '0' && param[1] <= '7') { |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1386 value = context->dregs[param[1]-'0']; |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1387 } else if (param[0] == 'a' && param[1] >= '0' && param[1] <= '7') { |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1388 value = context->aregs[param[1]-'0']; |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1389 } else if (param[0] == 'S' && param[1] == 'R') { |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1390 value = (context->status << 8); |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1391 for (int flag = 0; flag < 5; flag++) { |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1392 value |= context->flags[flag] << (4-flag); |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1393 } |
185
b204fbed4efe
Add ability to print out current 68K cycle in debugger
Mike Pavone <pavone@retrodev.com>
parents:
184
diff
changeset
|
1394 } else if(param[0] == 'c') { |
b204fbed4efe
Add ability to print out current 68K cycle in debugger
Mike Pavone <pavone@retrodev.com>
parents:
184
diff
changeset
|
1395 value = context->current_cycle; |
184
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1396 } else if (param[0] == '0' && param[1] == 'x') { |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1397 uint32_t p_addr = strtol(param+2, NULL, 16); |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1398 value = read_dma_value(p_addr/2); |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1399 } else { |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1400 fprintf(stderr, "Unrecognized parameter to p: %s\n", param); |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1401 break; |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1402 } |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1403 printf(format, param, value); |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1404 break; |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1405 case 'n': |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1406 //TODO: Deal with jmp, dbcc, rtr and rte |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1407 if (inst.op == M68K_RTS) { |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1408 after = (read_dma_value(context->aregs[7]/2) << 16) | read_dma_value(context->aregs[7]/2 + 1); |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1409 } else if(inst.op == M68K_BCC && inst.extra.cond != COND_FALSE) { |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1410 if (inst.extra.cond = COND_TRUE) { |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1411 after = inst.address + 2 + inst.src.params.immed; |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1412 } else { |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1413 branch_f = after; |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1414 branch_t = inst.address + 2 + inst.src.params.immed; |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1415 insert_breakpoint(context, branch_t, (uint8_t *)debugger); |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1416 } |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1417 } |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1418 insert_breakpoint(context, after, (uint8_t *)debugger); |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1419 debugging = 0; |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1420 break; |
327
1b00258b1f29
Added some basic VDP debugging features to debugger. Fixed DMA enable bug
Mike Pavone <pavone@retrodev.com>
parents:
321
diff
changeset
|
1421 case 'v': { |
1b00258b1f29
Added some basic VDP debugging features to debugger. Fixed DMA enable bug
Mike Pavone <pavone@retrodev.com>
parents:
321
diff
changeset
|
1422 genesis_context * gen = context->system; |
1b00258b1f29
Added some basic VDP debugging features to debugger. Fixed DMA enable bug
Mike Pavone <pavone@retrodev.com>
parents:
321
diff
changeset
|
1423 //VDP debug commands |
1b00258b1f29
Added some basic VDP debugging features to debugger. Fixed DMA enable bug
Mike Pavone <pavone@retrodev.com>
parents:
321
diff
changeset
|
1424 switch(input_buf[1]) |
1b00258b1f29
Added some basic VDP debugging features to debugger. Fixed DMA enable bug
Mike Pavone <pavone@retrodev.com>
parents:
321
diff
changeset
|
1425 { |
1b00258b1f29
Added some basic VDP debugging features to debugger. Fixed DMA enable bug
Mike Pavone <pavone@retrodev.com>
parents:
321
diff
changeset
|
1426 case 's': |
1b00258b1f29
Added some basic VDP debugging features to debugger. Fixed DMA enable bug
Mike Pavone <pavone@retrodev.com>
parents:
321
diff
changeset
|
1427 vdp_print_sprite_table(gen->vdp); |
1b00258b1f29
Added some basic VDP debugging features to debugger. Fixed DMA enable bug
Mike Pavone <pavone@retrodev.com>
parents:
321
diff
changeset
|
1428 break; |
1b00258b1f29
Added some basic VDP debugging features to debugger. Fixed DMA enable bug
Mike Pavone <pavone@retrodev.com>
parents:
321
diff
changeset
|
1429 case 'r': |
1b00258b1f29
Added some basic VDP debugging features to debugger. Fixed DMA enable bug
Mike Pavone <pavone@retrodev.com>
parents:
321
diff
changeset
|
1430 vdp_print_reg_explain(gen->vdp); |
1b00258b1f29
Added some basic VDP debugging features to debugger. Fixed DMA enable bug
Mike Pavone <pavone@retrodev.com>
parents:
321
diff
changeset
|
1431 break; |
1b00258b1f29
Added some basic VDP debugging features to debugger. Fixed DMA enable bug
Mike Pavone <pavone@retrodev.com>
parents:
321
diff
changeset
|
1432 } |
1b00258b1f29
Added some basic VDP debugging features to debugger. Fixed DMA enable bug
Mike Pavone <pavone@retrodev.com>
parents:
321
diff
changeset
|
1433 break; |
1b00258b1f29
Added some basic VDP debugging features to debugger. Fixed DMA enable bug
Mike Pavone <pavone@retrodev.com>
parents:
321
diff
changeset
|
1434 } |
366
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1435 case 'z': { |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1436 genesis_context * gen = context->system; |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1437 //Z80 debug commands |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1438 switch(input_buf[1]) |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1439 { |
447
e730fc040169
Fix performance regression from stop instruction work
Mike Pavone <pavone@retrodev.com>
parents:
446
diff
changeset
|
1440 case 'b': |
366
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1441 param = find_param(input_buf); |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1442 if (!param) { |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1443 fputs("zb command requires a parameter\n", stderr); |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1444 break; |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1445 } |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1446 value = strtol(param, NULL, 16); |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1447 zinsert_breakpoint(gen->z80, value, (uint8_t *)zdebugger); |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1448 new_bp = malloc(sizeof(bp_def)); |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1449 new_bp->next = zbreakpoints; |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1450 new_bp->address = value; |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1451 new_bp->index = zbp_index++; |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1452 zbreakpoints = new_bp; |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1453 printf("Z80 Breakpoint %d set at %X\n", new_bp->index, value); |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1454 break; |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1455 } |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1456 break; |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1457 } |
184
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1458 case 'q': |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1459 puts("Quitting"); |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1460 exit(0); |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1461 break; |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1462 default: |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1463 fprintf(stderr, "Unrecognized debugger command %s\n", input_buf); |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1464 break; |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1465 } |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1466 } |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1467 return context; |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1468 } |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1469 |
424
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1470 #define GST_68K_REGS 0x80 |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1471 #define GST_68K_REG_SIZE (0xDA-GST_68K_REGS) |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1472 #define GST_68K_PC_OFFSET (0xC8-GST_68K_REGS) |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1473 #define GST_68K_SR_OFFSET (0xD0-GST_68K_REGS) |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1474 #define GST_68K_USP_OFFSET (0xD2-GST_68K_REGS) |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1475 #define GST_68K_SSP_OFFSET (0xD6-GST_68K_REGS) |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1476 #define GST_68K_RAM 0x2478 |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1477 #define GST_Z80_REGS 0x404 |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1478 #define GST_Z80_REG_SIZE (0x440-GST_Z80_REGS) |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1479 #define GST_Z80_RAM 0x474 |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1480 |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1481 uint32_t read_le_32(uint8_t * data) |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1482 { |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1483 return data[3] << 24 | data[2] << 16 | data[1] << 8 | data[0]; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1484 } |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1485 |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1486 uint16_t read_le_16(uint8_t * data) |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1487 { |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1488 return data[1] << 8 | data[0]; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1489 } |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1490 |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1491 uint16_t read_be_16(uint8_t * data) |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1492 { |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1493 return data[0] << 8 | data[1]; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1494 } |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1495 |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1496 uint32_t m68k_load_gst(m68k_context * context, FILE * gstfile) |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1497 { |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1498 uint8_t buffer[4096]; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1499 fseek(gstfile, GST_68K_REGS, SEEK_SET); |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1500 if (fread(buffer, 1, GST_68K_REG_SIZE, gstfile) != GST_68K_REG_SIZE) { |
7e8e179116af
Add support for loading GST format savestates
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parents:
422
diff
changeset
|
1501 fputs("Failed to read 68K registers from savestate\n", stderr); |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1502 return 0; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1503 } |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1504 uint8_t * curpos = buffer; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1505 for (int i = 0; i < 8; i++) { |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1506 context->dregs[i] = read_le_32(curpos); |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1507 curpos += sizeof(uint32_t); |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1508 } |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1509 for (int i = 0; i < 8; i++) { |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1510 context->aregs[i] = read_le_32(curpos); |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1511 curpos += sizeof(uint32_t); |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1512 } |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1513 uint32_t pc = read_le_32(buffer + GST_68K_PC_OFFSET); |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1514 uint16_t sr = read_le_16(buffer + GST_68K_SR_OFFSET); |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1515 context->status = sr >> 8; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1516 for (int flag = 4; flag >= 0; flag--) { |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1517 context->flags[flag] = sr & 1; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1518 sr >>= 1; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1519 } |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1520 if (context->status & (1 << 5)) { |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1521 context->aregs[8] = read_le_32(buffer + GST_68K_USP_OFFSET); |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1522 } else { |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1523 context->aregs[8] = read_le_32(buffer + GST_68K_SSP_OFFSET); |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1524 } |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1525 fseek(gstfile, GST_68K_RAM, SEEK_SET); |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1526 for (int i = 0; i < (32*1024);) { |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1527 if (fread(buffer, 1, sizeof(buffer), gstfile) != sizeof(buffer)) { |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1528 fputs("Failed to read 68K RAM from savestate\n", stderr); |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1529 return 0; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1530 } |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1531 for(curpos = buffer; curpos < (buffer + sizeof(buffer)); curpos += sizeof(uint16_t)) { |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1532 context->mem_pointers[1][i++] = read_be_16(curpos); |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1533 } |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1534 } |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1535 return pc; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1536 } |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1537 |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1538 uint8_t z80_load_gst(z80_context * context, FILE * gstfile) |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1539 { |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1540 uint8_t regdata[GST_Z80_REG_SIZE]; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1541 fseek(gstfile, GST_Z80_REGS, SEEK_SET); |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1542 if (fread(regdata, 1, sizeof(regdata), gstfile) != sizeof(regdata)) { |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1543 fputs("Failed to read Z80 registers from savestate\n", stderr); |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1544 return 0; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1545 } |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1546 uint8_t * curpos = regdata; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1547 uint8_t f = *(curpos++); |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1548 context->flags[ZF_C] = f & 1; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1549 f >>= 1; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1550 context->flags[ZF_N] = f & 1; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1551 f >>= 1; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1552 context->flags[ZF_PV] = f & 1; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1553 f >>= 2; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1554 context->flags[ZF_H] = f & 1; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1555 f >>= 2; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1556 context->flags[ZF_Z] = f & 1; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1557 f >>= 1; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1558 context->flags[ZF_S] = f; |
447
e730fc040169
Fix performance regression from stop instruction work
Mike Pavone <pavone@retrodev.com>
parents:
446
diff
changeset
|
1559 |
424
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1560 context->regs[Z80_A] = *curpos; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1561 curpos += 3; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1562 for (int reg = Z80_C; reg <= Z80_IYH; reg++) { |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1563 context->regs[reg++] = *(curpos++); |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1564 context->regs[reg] = *curpos; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1565 curpos += 3; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1566 } |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1567 uint16_t pc = read_le_16(curpos); |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1568 curpos += 4; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1569 context->sp = read_le_16(curpos); |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1570 curpos += 4; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1571 f = *(curpos++); |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1572 context->alt_flags[ZF_C] = f & 1; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1573 f >>= 1; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1574 context->alt_flags[ZF_N] = f & 1; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1575 f >>= 1; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1576 context->alt_flags[ZF_PV] = f & 1; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1577 f >>= 2; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1578 context->alt_flags[ZF_H] = f & 1; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1579 f >>= 2; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1580 context->alt_flags[ZF_Z] = f & 1; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1581 f >>= 1; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1582 context->alt_flags[ZF_S] = f; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1583 context->alt_regs[Z80_A] = *curpos; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1584 curpos += 3; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1585 for (int reg = Z80_C; reg <= Z80_H; reg++) { |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1586 context->alt_regs[reg++] = *(curpos++); |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1587 context->alt_regs[reg] = *curpos; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1588 curpos += 3; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1589 } |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1590 context->regs[Z80_I] = *curpos; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1591 curpos += 2; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1592 context->iff1 = context->iff2 = *curpos; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1593 curpos += 2; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1594 reset = !*(curpos++); |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1595 busreq = *curpos; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1596 curpos += 3; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1597 uint32_t bank = read_le_32(curpos); |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1598 if (bank < 0x400000) { |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1599 context->mem_pointers[1] = context->mem_pointers[2] + bank; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1600 } else { |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1601 context->mem_pointers[1] = NULL; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1602 } |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1603 context->bank_reg = bank >> 15; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1604 fseek(gstfile, GST_Z80_RAM, SEEK_SET); |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1605 if(fread(context->mem_pointers[0], 1, 8*1024, gstfile) != (8*1024)) { |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1606 fputs("Failed to read Z80 RAM from savestate\n", stderr); |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1607 return 0; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1608 } |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1609 context->native_pc = z80_get_native_address_trans(context, pc); |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1610 return 1; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1611 } |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1612 |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1613 uint32_t load_gst(genesis_context * gen, char * fname) |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1614 { |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1615 FILE * gstfile = fopen(fname, "rb"); |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1616 if (!gstfile) { |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1617 fprintf(stderr, "Could not open file %s for reading\n", fname); |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1618 goto error; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1619 } |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1620 char ident[5]; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1621 if (fread(ident, 1, sizeof(ident), gstfile) != sizeof(ident)) { |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1622 fprintf(stderr, "Could not read ident code from %s\n", fname); |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1623 goto error_close; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1624 } |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1625 if (memcmp(ident, "GST\xE0\x40", 3) != 0) { |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1626 fprintf(stderr, "%s doesn't appear to be a GST savestate. The ident code is %c%c%c\\x%X\\x%X instead of GST\\xE0\\x40.\n", fname, ident[0], ident[1], ident[2], ident[3], ident[4]); |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1627 goto error_close; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1628 } |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1629 uint32_t pc = m68k_load_gst(gen->m68k, gstfile); |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1630 if (!pc) { |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1631 goto error_close; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1632 } |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1633 if (!vdp_load_gst(gen->vdp, gstfile)) { |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1634 goto error_close; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1635 } |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1636 if (!ym_load_gst(gen->ym, gstfile)) { |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1637 goto error_close; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1638 } |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1639 if (!z80_load_gst(gen->z80, gstfile)) { |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1640 goto error_close; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1641 } |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1642 gen->ports[0].control = 0x40; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1643 gen->ports[1].control = 0x40; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1644 adjust_int_cycle(gen->m68k, gen->vdp); |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1645 fclose(gstfile); |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1646 return pc; |
447
e730fc040169
Fix performance regression from stop instruction work
Mike Pavone <pavone@retrodev.com>
parents:
446
diff
changeset
|
1647 |
424
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1648 error_close: |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1649 fclose(gstfile); |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1650 error: |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1651 return 0; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1652 } |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1653 |
351
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
1654 #define ROM_END 0x1A4 |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
1655 #define RAM_ID 0x1B0 |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
1656 #define RAM_FLAGS 0x1B2 |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
1657 #define RAM_START 0x1B4 |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
1658 #define RAM_END 0x1B8 |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
1659 #define MAX_MAP_CHUNKS (4+7+1) |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
1660 #define RAM_FLAG_MASK 0x1800 |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
1661 |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
1662 const memmap_chunk static_map[] = { |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
1663 {0, 0x400000, 0xFFFFFF, 0, MMAP_READ, cart, |
343
467bfa17004a
Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents:
342
diff
changeset
|
1664 NULL, NULL, NULL, NULL}, |
447
e730fc040169
Fix performance regression from stop instruction work
Mike Pavone <pavone@retrodev.com>
parents:
446
diff
changeset
|
1665 {0xE00000, 0x1000000, 0xFFFF, 0, MMAP_READ | MMAP_WRITE | MMAP_CODE, ram, |
343
467bfa17004a
Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents:
342
diff
changeset
|
1666 NULL, NULL, NULL, NULL}, |
467bfa17004a
Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents:
342
diff
changeset
|
1667 {0xC00000, 0xE00000, 0x1FFFFF, 0, 0, NULL, |
467bfa17004a
Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents:
342
diff
changeset
|
1668 (read_16_fun)vdp_port_read, (write_16_fun)vdp_port_write, |
467bfa17004a
Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents:
342
diff
changeset
|
1669 (read_8_fun)vdp_port_read_b, (write_8_fun)vdp_port_write_b}, |
467bfa17004a
Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents:
342
diff
changeset
|
1670 {0xA00000, 0xA12000, 0x1FFFF, 0, 0, NULL, |
467bfa17004a
Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents:
342
diff
changeset
|
1671 (read_16_fun)io_read_w, (write_16_fun)io_write_w, |
467bfa17004a
Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents:
342
diff
changeset
|
1672 (read_8_fun)io_read, (write_8_fun)io_write} |
467bfa17004a
Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents:
342
diff
changeset
|
1673 }; |
351
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
1674 |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
1675 char * sram_filename; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
1676 genesis_context * genesis; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
1677 void save_sram() |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
1678 { |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
1679 FILE * f = fopen(sram_filename, "wb"); |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
1680 if (!f) { |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
1681 fprintf(stderr, "Failed to open SRAM file %s for writing\n", sram_filename); |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
1682 return; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
1683 } |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
1684 uint32_t size = genesis->save_ram_mask+1; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
1685 if (genesis->save_flags != RAM_FLAG_BOTH) { |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
1686 size/= 2; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
1687 } |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
1688 fwrite(genesis->save_ram, 1, size, f); |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
1689 fclose(f); |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
1690 printf("Saved SRAM to %s\n", sram_filename); |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
1691 } |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
1692 |
424
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1693 void init_run_cpu(genesis_context * gen, int debug, FILE * address_log, char * statefile) |
351
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
1694 { |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
1695 m68k_context context; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
1696 x86_68k_options opts; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
1697 gen->m68k = &context; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
1698 memmap_chunk memmap[MAX_MAP_CHUNKS]; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
1699 uint32_t num_chunks; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
1700 void * initial_mapped = NULL; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
1701 gen->save_ram = NULL; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
1702 //TODO: Handle carts larger than 4MB |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
1703 //TODO: Handle non-standard mappers |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
1704 uint32_t size; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
1705 if ((cart[RAM_ID/2] & 0xFF) == 'A' && (cart[RAM_ID/2] >> 8) == 'R') { |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
1706 //Cart has save RAM |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
1707 uint32_t rom_end = ((cart[ROM_END/2] << 16) | cart[ROM_END/2+1]) + 1; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
1708 uint32_t ram_start = (cart[RAM_START/2] << 16) | cart[RAM_START/2+1]; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
1709 uint32_t ram_end = (cart[RAM_END/2] << 16) | cart[RAM_END/2+1]; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
1710 uint16_t ram_flags = cart[RAM_FLAGS/2]; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
1711 gen->save_flags = ram_flags & RAM_FLAG_MASK; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
1712 memset(memmap, 0, sizeof(memmap_chunk)*2); |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
1713 if (ram_start >= rom_end) { |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
1714 memmap[0].end = rom_end; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
1715 memmap[0].mask = 0xFFFFFF; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
1716 memmap[0].flags = MMAP_READ; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
1717 memmap[0].buffer = cart; |
447
e730fc040169
Fix performance regression from stop instruction work
Mike Pavone <pavone@retrodev.com>
parents:
446
diff
changeset
|
1718 |
351
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
1719 ram_start &= 0xFFFFFE; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
1720 ram_end |= 1; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
1721 memmap[1].start = ram_start; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
1722 gen->save_ram_mask = memmap[1].mask = ram_end-ram_start; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
1723 ram_end += 1; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
1724 memmap[1].end = ram_end; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
1725 memmap[1].flags = MMAP_READ | MMAP_WRITE; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
1726 size = ram_end-ram_start; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
1727 if ((ram_flags & RAM_FLAG_MASK) == RAM_FLAG_ODD) { |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
1728 memmap[1].flags |= MMAP_ONLY_ODD; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
1729 size /= 2; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
1730 } else if((ram_flags & RAM_FLAG_MASK) == RAM_FLAG_EVEN) { |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
changeset
|
1731 memmap[1].flags |= MMAP_ONLY_EVEN; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
changeset
|
1732 size /= 2; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
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|
1733 } |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
changeset
|
1734 memmap[1].buffer = gen->save_ram = malloc(size); |
447
e730fc040169
Fix performance regression from stop instruction work
Mike Pavone <pavone@retrodev.com>
parents:
446
diff
changeset
|
1735 |
351
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
changeset
|
1736 memcpy(memmap+2, static_map+1, sizeof(static_map)-sizeof(static_map[0])); |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
changeset
|
1737 num_chunks = sizeof(static_map)/sizeof(memmap_chunk)+1; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
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|
1738 } else { |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
changeset
|
1739 //Assume the standard Sega mapper for now |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
changeset
|
1740 memmap[0].end = 0x200000; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
changeset
|
1741 memmap[0].mask = 0xFFFFFF; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
changeset
|
1742 memmap[0].flags = MMAP_READ; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
changeset
|
1743 memmap[0].buffer = cart; |
447
e730fc040169
Fix performance regression from stop instruction work
Mike Pavone <pavone@retrodev.com>
parents:
446
diff
changeset
|
1744 |
351
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
changeset
|
1745 memmap[1].start = 0x200000; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
changeset
|
1746 memmap[1].end = 0x400000; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
changeset
|
1747 memmap[1].mask = 0x1FFFFF; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
changeset
|
1748 ram_start &= 0xFFFFFE; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
changeset
|
1749 ram_end |= 1; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
changeset
|
1750 gen->save_ram_mask = ram_end-ram_start; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
changeset
|
1751 memmap[1].flags = MMAP_READ | MMAP_PTR_IDX | MMAP_FUNC_NULL; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
changeset
|
1752 memmap[1].ptr_index = 2; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
changeset
|
1753 memmap[1].read_16 = (read_16_fun)read_sram_w;//these will only be called when mem_pointers[2] == NULL |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
changeset
|
1754 memmap[1].read_8 = (read_8_fun)read_sram_b; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
changeset
|
1755 memmap[1].write_16 = (write_16_fun)write_sram_area_w;//these will be called all writes to the area |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
changeset
|
1756 memmap[1].write_8 = (write_8_fun)write_sram_area_b; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
changeset
|
1757 memcpy(memmap+2, static_map+1, sizeof(static_map)-sizeof(static_map[0])); |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
changeset
|
1758 num_chunks = sizeof(static_map)/sizeof(memmap_chunk)+1; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
changeset
|
1759 memset(memmap+num_chunks, 0, sizeof(memmap[num_chunks])); |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
changeset
|
1760 memmap[num_chunks].start = 0xA13000; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
changeset
|
1761 memmap[num_chunks].end = 0xA13100; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
changeset
|
1762 memmap[num_chunks].mask = 0xFF; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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parents:
346
diff
changeset
|
1763 memmap[num_chunks].write_16 = (write_16_fun)write_bank_reg_w; |
447
e730fc040169
Fix performance regression from stop instruction work
Mike Pavone <pavone@retrodev.com>
parents:
446
diff
changeset
|
1764 memmap[num_chunks].write_8 = (write_8_fun)write_bank_reg_b; |
351
2f264d2a60c2
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346
diff
changeset
|
1765 num_chunks++; |
2f264d2a60c2
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346
diff
changeset
|
1766 ram_end++; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
changeset
|
1767 size = ram_end-ram_start; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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parents:
346
diff
changeset
|
1768 if ((ram_flags & RAM_FLAG_MASK) != RAM_FLAG_BOTH) { |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
changeset
|
1769 size /= 2; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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parents:
346
diff
changeset
|
1770 } |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
changeset
|
1771 gen->save_ram = malloc(size); |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
changeset
|
1772 memmap[1].buffer = initial_mapped = cart + 0x200000/2; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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parents:
346
diff
changeset
|
1773 } |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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parents:
346
diff
changeset
|
1774 } else { |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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parents:
346
diff
changeset
|
1775 memcpy(memmap, static_map, sizeof(static_map)); |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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parents:
346
diff
changeset
|
1776 num_chunks = sizeof(static_map)/sizeof(memmap_chunk); |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
changeset
|
1777 } |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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parents:
346
diff
changeset
|
1778 if (gen->save_ram) { |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
changeset
|
1779 memset(gen->save_ram, 0, size); |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
changeset
|
1780 FILE * f = fopen(sram_filename, "rb"); |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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parents:
346
diff
changeset
|
1781 if (f) { |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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parents:
346
diff
changeset
|
1782 uint32_t read = fread(gen->save_ram, 1, size, f); |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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parents:
346
diff
changeset
|
1783 fclose(f); |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
changeset
|
1784 if (read > 0) { |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
changeset
|
1785 printf("Loaded SRAM from %s\n", sram_filename); |
2f264d2a60c2
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346
diff
changeset
|
1786 } |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
changeset
|
1787 } |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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parents:
346
diff
changeset
|
1788 atexit(save_sram); |
2f264d2a60c2
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346
diff
changeset
|
1789 } |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
changeset
|
1790 init_x86_68k_opts(&opts, memmap, num_chunks); |
211 | 1791 opts.address_log = address_log; |
1792 init_68k_context(&context, opts.native_code_map, &opts); | |
447
e730fc040169
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Mike Pavone <pavone@retrodev.com>
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446
diff
changeset
|
1793 |
288
a8ee7934a1f8
Add a YM2612 stub implementation with just timers and status registers so that games that depend on it can run.
Mike Pavone <pavone@retrodev.com>
parents:
280
diff
changeset
|
1794 context.video_context = gen->vdp; |
a8ee7934a1f8
Add a YM2612 stub implementation with just timers and status registers so that games that depend on it can run.
Mike Pavone <pavone@retrodev.com>
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280
diff
changeset
|
1795 context.system = gen; |
211 | 1796 //cartridge ROM |
1797 context.mem_pointers[0] = cart; | |
342
13f994c88c34
Get frame time correct and frame rate sort of correct for EUR region
Mike Pavone <pavone@retrodev.com>
parents:
341
diff
changeset
|
1798 context.target_cycle = context.sync_cycle = mclks_per_frame/MCLKS_PER_68K; |
211 | 1799 //work RAM |
1800 context.mem_pointers[1] = ram; | |
351
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346
diff
changeset
|
1801 //save RAM/map |
2f264d2a60c2
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346
diff
changeset
|
1802 context.mem_pointers[2] = initial_mapped; |
2f264d2a60c2
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346
diff
changeset
|
1803 context.mem_pointers[3] = (uint16_t *)gen->save_ram; |
211 | 1804 uint32_t address; |
1805 address = cart[2] << 16 | cart[3]; | |
1806 translate_m68k_stream(address, &context); | |
424
7e8e179116af
Add support for loading GST format savestates
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422
diff
changeset
|
1807 if (statefile) { |
7e8e179116af
Add support for loading GST format savestates
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422
diff
changeset
|
1808 uint32_t pc = load_gst(gen, statefile); |
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422
diff
changeset
|
1809 if (!pc) { |
7e8e179116af
Add support for loading GST format savestates
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422
diff
changeset
|
1810 exit(1); |
7e8e179116af
Add support for loading GST format savestates
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422
diff
changeset
|
1811 } |
7e8e179116af
Add support for loading GST format savestates
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422
diff
changeset
|
1812 if (debug) { |
7e8e179116af
Add support for loading GST format savestates
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422
diff
changeset
|
1813 insert_breakpoint(&context, pc, (uint8_t *)debugger); |
7e8e179116af
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diff
changeset
|
1814 } |
7e8e179116af
Add support for loading GST format savestates
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422
diff
changeset
|
1815 start_68k_context(&context, pc); |
7e8e179116af
Add support for loading GST format savestates
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diff
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|
1816 } else { |
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Add support for loading GST format savestates
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422
diff
changeset
|
1817 if (debug) { |
7e8e179116af
Add support for loading GST format savestates
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422
diff
changeset
|
1818 insert_breakpoint(&context, address, (uint8_t *)debugger); |
7e8e179116af
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422
diff
changeset
|
1819 } |
7e8e179116af
Add support for loading GST format savestates
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diff
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|
1820 m68k_reset(&context); |
211 | 1821 } |
1822 } | |
1823 | |
340
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diff
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|
1824 char title[64]; |
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|
1825 |
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diff
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|
1826 #define TITLE_START 0x150 |
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|
1827 #define TITLE_END (TITLE_START+48) |
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|
1828 |
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diff
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|
1829 void update_title() |
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|
1830 { |
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|
1831 uint16_t *last = cart + TITLE_END/2 - 1; |
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|
1832 while(last > cart + TITLE_START/2 && *last == 0x2020) |
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changeset
|
1833 { |
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diff
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|
1834 last--; |
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|
1835 } |
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|
1836 uint16_t *start = cart + TITLE_START/2; |
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diff
changeset
|
1837 char *cur = title; |
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changeset
|
1838 char last_char = ' '; |
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|
1839 for (; start != last; start++) |
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changeset
|
1840 { |
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diff
changeset
|
1841 if ((last_char != ' ' || (*start >> 8) != ' ') && (*start >> 8) < 0x80) { |
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|
1842 *(cur++) = *start >> 8; |
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changeset
|
1843 last_char = *start >> 8; |
58a085cfc6bd
Set window title based on ROM header name
Mike Pavone <pavone@retrodev.com>
parents:
338
diff
changeset
|
1844 } |
58a085cfc6bd
Set window title based on ROM header name
Mike Pavone <pavone@retrodev.com>
parents:
338
diff
changeset
|
1845 if (last_char != ' ' || (*start & 0xFF) != ' ' && (*start & 0xFF) < 0x80) { |
58a085cfc6bd
Set window title based on ROM header name
Mike Pavone <pavone@retrodev.com>
parents:
338
diff
changeset
|
1846 *(cur++) = *start; |
58a085cfc6bd
Set window title based on ROM header name
Mike Pavone <pavone@retrodev.com>
parents:
338
diff
changeset
|
1847 last_char = *start & 0xFF; |
58a085cfc6bd
Set window title based on ROM header name
Mike Pavone <pavone@retrodev.com>
parents:
338
diff
changeset
|
1848 } |
58a085cfc6bd
Set window title based on ROM header name
Mike Pavone <pavone@retrodev.com>
parents:
338
diff
changeset
|
1849 } |
58a085cfc6bd
Set window title based on ROM header name
Mike Pavone <pavone@retrodev.com>
parents:
338
diff
changeset
|
1850 *(cur++) = *start >> 8; |
58a085cfc6bd
Set window title based on ROM header name
Mike Pavone <pavone@retrodev.com>
parents:
338
diff
changeset
|
1851 if ((*start & 0xFF) != ' ') { |
58a085cfc6bd
Set window title based on ROM header name
Mike Pavone <pavone@retrodev.com>
parents:
338
diff
changeset
|
1852 *(cur++) = *start; |
58a085cfc6bd
Set window title based on ROM header name
Mike Pavone <pavone@retrodev.com>
parents:
338
diff
changeset
|
1853 } |
58a085cfc6bd
Set window title based on ROM header name
Mike Pavone <pavone@retrodev.com>
parents:
338
diff
changeset
|
1854 strcpy(cur, " - BlastEm"); |
58a085cfc6bd
Set window title based on ROM header name
Mike Pavone <pavone@retrodev.com>
parents:
338
diff
changeset
|
1855 } |
58a085cfc6bd
Set window title based on ROM header name
Mike Pavone <pavone@retrodev.com>
parents:
338
diff
changeset
|
1856 |
341
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1857 #define REGION_START 0x1F0 |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1858 |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1859 int detect_specific_region(char region) |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1860 { |
346
aff29d50afd5
Fix a region detection bug
Mike Pavone <pavone@retrodev.com>
parents:
345
diff
changeset
|
1861 return (cart[REGION_START/2] & 0xFF) == region || (cart[REGION_START/2] >> 8) == region || (cart[REGION_START/2+1] & 0xFF) == region; |
341
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1862 } |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1863 |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1864 void detect_region() |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1865 { |
343
467bfa17004a
Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents:
342
diff
changeset
|
1866 if (detect_specific_region('U')|| detect_specific_region('B') || detect_specific_region('4')) { |
341
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1867 version_reg = NO_DISK | USA; |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1868 } else if (detect_specific_region('J')) { |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1869 version_reg = NO_DISK | JAP; |
343
467bfa17004a
Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents:
342
diff
changeset
|
1870 } else if (detect_specific_region('E') || detect_specific_region('A')) { |
341
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1871 version_reg = NO_DISK | EUR; |
434
f0631c85a90b
Read default region from config file
Mike Pavone <pavone@retrodev.com>
parents:
433
diff
changeset
|
1872 } else { |
f0631c85a90b
Read default region from config file
Mike Pavone <pavone@retrodev.com>
parents:
433
diff
changeset
|
1873 char * def_region = tern_find_ptr(config, "default_region"); |
f0631c85a90b
Read default region from config file
Mike Pavone <pavone@retrodev.com>
parents:
433
diff
changeset
|
1874 if (def_region) { |
f0631c85a90b
Read default region from config file
Mike Pavone <pavone@retrodev.com>
parents:
433
diff
changeset
|
1875 switch(*def_region) |
f0631c85a90b
Read default region from config file
Mike Pavone <pavone@retrodev.com>
parents:
433
diff
changeset
|
1876 { |
f0631c85a90b
Read default region from config file
Mike Pavone <pavone@retrodev.com>
parents:
433
diff
changeset
|
1877 case 'j': |
f0631c85a90b
Read default region from config file
Mike Pavone <pavone@retrodev.com>
parents:
433
diff
changeset
|
1878 case 'J': |
f0631c85a90b
Read default region from config file
Mike Pavone <pavone@retrodev.com>
parents:
433
diff
changeset
|
1879 version_reg = NO_DISK | JAP; |
f0631c85a90b
Read default region from config file
Mike Pavone <pavone@retrodev.com>
parents:
433
diff
changeset
|
1880 break; |
f0631c85a90b
Read default region from config file
Mike Pavone <pavone@retrodev.com>
parents:
433
diff
changeset
|
1881 case 'u': |
f0631c85a90b
Read default region from config file
Mike Pavone <pavone@retrodev.com>
parents:
433
diff
changeset
|
1882 case 'U': |
f0631c85a90b
Read default region from config file
Mike Pavone <pavone@retrodev.com>
parents:
433
diff
changeset
|
1883 version_reg = NO_DISK | USA; |
f0631c85a90b
Read default region from config file
Mike Pavone <pavone@retrodev.com>
parents:
433
diff
changeset
|
1884 break; |
f0631c85a90b
Read default region from config file
Mike Pavone <pavone@retrodev.com>
parents:
433
diff
changeset
|
1885 case 'e': |
f0631c85a90b
Read default region from config file
Mike Pavone <pavone@retrodev.com>
parents:
433
diff
changeset
|
1886 case 'E': |
f0631c85a90b
Read default region from config file
Mike Pavone <pavone@retrodev.com>
parents:
433
diff
changeset
|
1887 version_reg = NO_DISK | EUR; |
f0631c85a90b
Read default region from config file
Mike Pavone <pavone@retrodev.com>
parents:
433
diff
changeset
|
1888 break; |
f0631c85a90b
Read default region from config file
Mike Pavone <pavone@retrodev.com>
parents:
433
diff
changeset
|
1889 } |
f0631c85a90b
Read default region from config file
Mike Pavone <pavone@retrodev.com>
parents:
433
diff
changeset
|
1890 } |
341
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1891 } |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1892 } |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1893 |
88
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1894 int main(int argc, char ** argv) |
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1895 { |
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1896 if (argc < 2) { |
430
7f84090ab1cd
Add config file parser and default config file
Mike Pavone <pavone@retrodev.com>
parents:
425
diff
changeset
|
1897 fputs("Usage: blastem FILENAME [options]\n", stderr); |
88
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1898 return 1; |
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1899 } |
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1900 if(!load_rom(argv[1])) { |
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1901 fprintf(stderr, "Failed to open %s for reading\n", argv[1]); |
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1902 return 1; |
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1903 } |
430
7f84090ab1cd
Add config file parser and default config file
Mike Pavone <pavone@retrodev.com>
parents:
425
diff
changeset
|
1904 config = load_config(argv[0]); |
341
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1905 detect_region(); |
184
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1906 int width = -1; |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1907 int height = -1; |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1908 int debug = 0; |
407
c3abc4ada43d
Add support for logging YM2612 channels to WAVE files
Mike Pavone <pavone@retrodev.com>
parents:
405
diff
changeset
|
1909 int ym_log = 0; |
197
7c227a8ec53d
Add instruction address logging to translator and support for reading an address log to the disassembler
Mike Pavone <pavone@retrodev.com>
parents:
195
diff
changeset
|
1910 FILE *address_log = NULL; |
425
8b3ae850d1c4
Forgot to null initialize the statfile pointer
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
1911 char * statefile = NULL; |
444
cc754a309ead
Add fullscreen support and add a keybinding for exiting the emulator
Mike Pavone <pavone@retrodev.com>
parents:
434
diff
changeset
|
1912 uint8_t fullscreen = 0; |
184
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1913 for (int i = 2; i < argc; i++) { |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1914 if (argv[i][0] == '-') { |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1915 switch(argv[i][1]) { |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1916 case 'd': |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1917 debug = 1; |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1918 break; |
338
5c34a9c39394
Re-enable frame limit, but add a command line flag to disable it
Mike Pavone <pavone@retrodev.com>
parents:
336
diff
changeset
|
1919 case 'f': |
444
cc754a309ead
Add fullscreen support and add a keybinding for exiting the emulator
Mike Pavone <pavone@retrodev.com>
parents:
434
diff
changeset
|
1920 fullscreen = 1; |
338
5c34a9c39394
Re-enable frame limit, but add a command line flag to disable it
Mike Pavone <pavone@retrodev.com>
parents:
336
diff
changeset
|
1921 break; |
197
7c227a8ec53d
Add instruction address logging to translator and support for reading an address log to the disassembler
Mike Pavone <pavone@retrodev.com>
parents:
195
diff
changeset
|
1922 case 'l': |
7c227a8ec53d
Add instruction address logging to translator and support for reading an address log to the disassembler
Mike Pavone <pavone@retrodev.com>
parents:
195
diff
changeset
|
1923 address_log = fopen("address.log", "w"); |
7c227a8ec53d
Add instruction address logging to translator and support for reading an address log to the disassembler
Mike Pavone <pavone@retrodev.com>
parents:
195
diff
changeset
|
1924 break; |
215
2b1c2c28b261
Added headless flag to avoid initializing SDL and opening a window when running tests.
Mike Pavone <pavone@retrodev.com>
parents:
211
diff
changeset
|
1925 case 'v': |
2b1c2c28b261
Added headless flag to avoid initializing SDL and opening a window when running tests.
Mike Pavone <pavone@retrodev.com>
parents:
211
diff
changeset
|
1926 headless = 1; |
2b1c2c28b261
Added headless flag to avoid initializing SDL and opening a window when running tests.
Mike Pavone <pavone@retrodev.com>
parents:
211
diff
changeset
|
1927 break; |
265
c6d12878ea93
Add -n flag for disabling the Z80 core
Mike Pavone <pavone@retrodev.com>
parents:
264
diff
changeset
|
1928 case 'n': |
c6d12878ea93
Add -n flag for disabling the Z80 core
Mike Pavone <pavone@retrodev.com>
parents:
264
diff
changeset
|
1929 z80_enabled = 0; |
c6d12878ea93
Add -n flag for disabling the Z80 core
Mike Pavone <pavone@retrodev.com>
parents:
264
diff
changeset
|
1930 break; |
341
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1931 case 'r': |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1932 i++; |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1933 if (i >= argc) { |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1934 fputs("-r must be followed by region (J, U or E)\n", stderr); |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1935 return 1; |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1936 } |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1937 switch (argv[i][0]) |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1938 { |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1939 case 'j': |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1940 case 'J': |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1941 version_reg = NO_DISK | JAP; |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1942 break; |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1943 case 'u': |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1944 case 'U': |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1945 version_reg = NO_DISK | USA; |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1946 break; |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1947 case 'e': |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1948 case 'E': |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1949 version_reg = NO_DISK | EUR; |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1950 break; |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1951 default: |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1952 fprintf(stderr, "'%c' is not a valid region character for the -r option\n", argv[i][0]); |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1953 return 1; |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1954 } |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1955 break; |
424
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1956 case 's': |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1957 i++; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1958 if (i >= argc) { |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1959 fputs("-s must be followed by a savestate filename\n", stderr); |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1960 return 1; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1961 } |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1962 statefile = argv[i]; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1963 break; |
407
c3abc4ada43d
Add support for logging YM2612 channels to WAVE files
Mike Pavone <pavone@retrodev.com>
parents:
405
diff
changeset
|
1964 case 'y': |
c3abc4ada43d
Add support for logging YM2612 channels to WAVE files
Mike Pavone <pavone@retrodev.com>
parents:
405
diff
changeset
|
1965 ym_log = 1; |
c3abc4ada43d
Add support for logging YM2612 channels to WAVE files
Mike Pavone <pavone@retrodev.com>
parents:
405
diff
changeset
|
1966 break; |
184
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1967 default: |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1968 fprintf(stderr, "Unrecognized switch %s\n", argv[i]); |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
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1969 return 1; |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
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1970 } |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
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1971 } else if (width < 0) { |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
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parents:
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1972 width = atoi(argv[i]); |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
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parents:
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1973 } else if (height < 0) { |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
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parents:
166
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1974 height = atoi(argv[i]); |
88
c339559f1d4f
Forgot to add blastem main file earlier
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parents:
diff
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|
1975 } |
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1976 } |
340
58a085cfc6bd
Set window title based on ROM header name
Mike Pavone <pavone@retrodev.com>
parents:
338
diff
changeset
|
1977 update_title(); |
433
ed4d0017c041
Read default render width from config file
Mike Pavone <pavone@retrodev.com>
parents:
430
diff
changeset
|
1978 int def_width = 0; |
ed4d0017c041
Read default render width from config file
Mike Pavone <pavone@retrodev.com>
parents:
430
diff
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|
1979 char *config_width = tern_find_ptr(config, "videowidth"); |
ed4d0017c041
Read default render width from config file
Mike Pavone <pavone@retrodev.com>
parents:
430
diff
changeset
|
1980 if (config_width) { |
ed4d0017c041
Read default render width from config file
Mike Pavone <pavone@retrodev.com>
parents:
430
diff
changeset
|
1981 def_width = atoi(config_width); |
ed4d0017c041
Read default render width from config file
Mike Pavone <pavone@retrodev.com>
parents:
430
diff
changeset
|
1982 } |
ed4d0017c041
Read default render width from config file
Mike Pavone <pavone@retrodev.com>
parents:
430
diff
changeset
|
1983 if (!def_width) { |
ed4d0017c041
Read default render width from config file
Mike Pavone <pavone@retrodev.com>
parents:
430
diff
changeset
|
1984 def_width = 640; |
ed4d0017c041
Read default render width from config file
Mike Pavone <pavone@retrodev.com>
parents:
430
diff
changeset
|
1985 } |
ed4d0017c041
Read default render width from config file
Mike Pavone <pavone@retrodev.com>
parents:
430
diff
changeset
|
1986 width = width < 320 ? def_width : width; |
184
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
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|
1987 height = height < 240 ? (width/320) * 240 : height; |
354
15dd6418fe67
Initial PSG support. Mostly works, noise channel is borked though.
Mike Pavone <pavone@retrodev.com>
parents:
351
diff
changeset
|
1988 uint32_t fps = 60; |
342
13f994c88c34
Get frame time correct and frame rate sort of correct for EUR region
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parents:
341
diff
changeset
|
1989 if (version_reg & 0x40) { |
13f994c88c34
Get frame time correct and frame rate sort of correct for EUR region
Mike Pavone <pavone@retrodev.com>
parents:
341
diff
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1990 mclks_per_frame = MCLKS_LINE * LINES_PAL; |
354
15dd6418fe67
Initial PSG support. Mostly works, noise channel is borked though.
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parents:
351
diff
changeset
|
1991 fps = 50; |
15dd6418fe67
Initial PSG support. Mostly works, noise channel is borked though.
Mike Pavone <pavone@retrodev.com>
parents:
351
diff
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|
1992 } |
15dd6418fe67
Initial PSG support. Mostly works, noise channel is borked though.
Mike Pavone <pavone@retrodev.com>
parents:
351
diff
changeset
|
1993 if (!headless) { |
444
cc754a309ead
Add fullscreen support and add a keybinding for exiting the emulator
Mike Pavone <pavone@retrodev.com>
parents:
434
diff
changeset
|
1994 render_init(width, height, title, fps, fullscreen); |
342
13f994c88c34
Get frame time correct and frame rate sort of correct for EUR region
Mike Pavone <pavone@retrodev.com>
parents:
341
diff
changeset
|
1995 } |
88
c339559f1d4f
Forgot to add blastem main file earlier
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parents:
diff
changeset
|
1996 vdp_context v_context; |
447
e730fc040169
Fix performance regression from stop instruction work
Mike Pavone <pavone@retrodev.com>
parents:
446
diff
changeset
|
1997 |
88
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1998 init_vdp_context(&v_context); |
447
e730fc040169
Fix performance regression from stop instruction work
Mike Pavone <pavone@retrodev.com>
parents:
446
diff
changeset
|
1999 |
288
a8ee7934a1f8
Add a YM2612 stub implementation with just timers and status registers so that games that depend on it can run.
Mike Pavone <pavone@retrodev.com>
parents:
280
diff
changeset
|
2000 ym2612_context y_context; |
407
c3abc4ada43d
Add support for logging YM2612 channels to WAVE files
Mike Pavone <pavone@retrodev.com>
parents:
405
diff
changeset
|
2001 ym_init(&y_context, render_sample_rate(), fps == 60 ? MCLKS_NTSC : MCLKS_PAL, MCLKS_PER_YM, render_audio_buffer(), ym_log ? YM_OPT_WAVE_LOG : 0); |
447
e730fc040169
Fix performance regression from stop instruction work
Mike Pavone <pavone@retrodev.com>
parents:
446
diff
changeset
|
2002 |
354
15dd6418fe67
Initial PSG support. Mostly works, noise channel is borked though.
Mike Pavone <pavone@retrodev.com>
parents:
351
diff
changeset
|
2003 psg_context p_context; |
380
1c8d74f2ab0b
Make the PSG and YM2612 use the master clock internal with an increment based on clock divider so that they stay perflectly in sync. Run both the PSG and YM2612 whenver one of them needs to be run.
Mike Pavone <pavone@retrodev.com>
parents:
374
diff
changeset
|
2004 psg_init(&p_context, render_sample_rate(), fps == 60 ? MCLKS_NTSC : MCLKS_PAL, MCLKS_PER_PSG, render_audio_buffer()); |
447
e730fc040169
Fix performance regression from stop instruction work
Mike Pavone <pavone@retrodev.com>
parents:
446
diff
changeset
|
2005 |
260
625f8e4d5fd2
Initial stab at integartiong Z80 core
Mike Pavone <pavone@retrodev.com>
parents:
215
diff
changeset
|
2006 z80_context z_context; |
625f8e4d5fd2
Initial stab at integartiong Z80 core
Mike Pavone <pavone@retrodev.com>
parents:
215
diff
changeset
|
2007 x86_z80_options z_opts; |
625f8e4d5fd2
Initial stab at integartiong Z80 core
Mike Pavone <pavone@retrodev.com>
parents:
215
diff
changeset
|
2008 init_x86_z80_opts(&z_opts); |
625f8e4d5fd2
Initial stab at integartiong Z80 core
Mike Pavone <pavone@retrodev.com>
parents:
215
diff
changeset
|
2009 init_z80_context(&z_context, &z_opts); |
290
171f97e70d85
Implement writes from Z80 to YM-2612
Mike Pavone <pavone@retrodev.com>
parents:
289
diff
changeset
|
2010 |
421
d0cacb4ade0b
Move IO code to a separate file and do a tiny bit of refactoring
Mike Pavone <pavone@retrodev.com>
parents:
418
diff
changeset
|
2011 genesis_context gen; |
d0cacb4ade0b
Move IO code to a separate file and do a tiny bit of refactoring
Mike Pavone <pavone@retrodev.com>
parents:
418
diff
changeset
|
2012 memset(&gen, 0, sizeof(gen)); |
290
171f97e70d85
Implement writes from Z80 to YM-2612
Mike Pavone <pavone@retrodev.com>
parents:
289
diff
changeset
|
2013 |
171f97e70d85
Implement writes from Z80 to YM-2612
Mike Pavone <pavone@retrodev.com>
parents:
289
diff
changeset
|
2014 z_context.system = &gen; |
260
625f8e4d5fd2
Initial stab at integartiong Z80 core
Mike Pavone <pavone@retrodev.com>
parents:
215
diff
changeset
|
2015 z_context.mem_pointers[0] = z80_ram; |
342
13f994c88c34
Get frame time correct and frame rate sort of correct for EUR region
Mike Pavone <pavone@retrodev.com>
parents:
341
diff
changeset
|
2016 z_context.sync_cycle = z_context.target_cycle = mclks_per_frame/MCLKS_PER_Z80; |
260
625f8e4d5fd2
Initial stab at integartiong Z80 core
Mike Pavone <pavone@retrodev.com>
parents:
215
diff
changeset
|
2017 z_context.int_cycle = CYCLE_NEVER; |
625f8e4d5fd2
Initial stab at integartiong Z80 core
Mike Pavone <pavone@retrodev.com>
parents:
215
diff
changeset
|
2018 z_context.mem_pointers[1] = z_context.mem_pointers[2] = (uint8_t *)cart; |
447
e730fc040169
Fix performance regression from stop instruction work
Mike Pavone <pavone@retrodev.com>
parents:
446
diff
changeset
|
2019 |
288
a8ee7934a1f8
Add a YM2612 stub implementation with just timers and status registers so that games that depend on it can run.
Mike Pavone <pavone@retrodev.com>
parents:
280
diff
changeset
|
2020 gen.z80 = &z_context; |
a8ee7934a1f8
Add a YM2612 stub implementation with just timers and status registers so that games that depend on it can run.
Mike Pavone <pavone@retrodev.com>
parents:
280
diff
changeset
|
2021 gen.vdp = &v_context; |
a8ee7934a1f8
Add a YM2612 stub implementation with just timers and status registers so that games that depend on it can run.
Mike Pavone <pavone@retrodev.com>
parents:
280
diff
changeset
|
2022 gen.ym = &y_context; |
354
15dd6418fe67
Initial PSG support. Mostly works, noise channel is borked though.
Mike Pavone <pavone@retrodev.com>
parents:
351
diff
changeset
|
2023 gen.psg = &p_context; |
351
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
2024 genesis = &gen; |
447
e730fc040169
Fix performance regression from stop instruction work
Mike Pavone <pavone@retrodev.com>
parents:
446
diff
changeset
|
2025 |
351
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
2026 int fname_size = strlen(argv[1]); |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
2027 sram_filename = malloc(fname_size+6); |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
2028 memcpy(sram_filename, argv[1], fname_size); |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
2029 int i; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
2030 for (i = fname_size-1; fname_size >= 0; --i) { |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
2031 if (sram_filename[i] == '.') { |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
2032 strcpy(sram_filename + i + 1, "sram"); |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
2033 break; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
2034 } |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
2035 } |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
2036 if (i < 0) { |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
2037 strcpy(sram_filename + fname_size, ".sram"); |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
2038 } |
398
c26e48a93fa3
Make keybindings data driven so they can be populated from a config file later
Mike Pavone <pavone@retrodev.com>
parents:
395
diff
changeset
|
2039 set_keybindings(); |
447
e730fc040169
Fix performance regression from stop instruction work
Mike Pavone <pavone@retrodev.com>
parents:
446
diff
changeset
|
2040 |
424
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
2041 init_run_cpu(&gen, debug, address_log, statefile); |
88
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
2042 return 0; |
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
2043 } |