Mercurial > repos > blastem
annotate blastem.c @ 425:8b3ae850d1c4
Forgot to null initialize the statfile pointer
author | Mike Pavone <pavone@retrodev.com> |
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date | Sat, 29 Jun 2013 17:21:19 -0700 |
parents | 7e8e179116af |
children | 7f84090ab1cd 7696d824489d |
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 #ifndef MIN |
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39 #define MIN(a,b) ((a) < (b) ? (a) : (b)) |
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40 #endif |
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41 |
166 | 42 #define SMD_HEADER_SIZE 512 |
43 #define SMD_MAGIC1 0x03 | |
44 #define SMD_MAGIC2 0xAA | |
45 #define SMD_MAGIC3 0xBB | |
46 #define SMD_BLOCK_SIZE 0x4000 | |
47 | |
48 int load_smd_rom(long filesize, FILE * f) | |
49 { | |
50 uint8_t block[SMD_BLOCK_SIZE]; | |
51 filesize -= SMD_HEADER_SIZE; | |
52 fseek(f, SMD_HEADER_SIZE, SEEK_SET); | |
53 | |
54 uint16_t * dst = cart; | |
55 while (filesize > 0) { | |
56 fread(block, 1, SMD_BLOCK_SIZE, f); | |
57 for (uint8_t *low = block, *high = (block+SMD_BLOCK_SIZE/2), *end = block+SMD_BLOCK_SIZE; high < end; high++, low++) { | |
58 *(dst++) = *high << 8 | *low; | |
59 } | |
60 filesize -= SMD_BLOCK_SIZE; | |
61 } | |
62 return 1; | |
63 } | |
64 | |
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65 int load_rom(char * filename) |
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66 { |
166 | 67 uint8_t header[10]; |
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68 FILE * f = fopen(filename, "rb"); |
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69 if (!f) { |
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70 return 0; |
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71 } |
166 | 72 fread(header, 1, sizeof(header), f); |
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73 fseek(f, 0, SEEK_END); |
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74 long filesize = ftell(f); |
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75 if (filesize/2 > CARTRIDGE_WORDS) { |
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76 //carts bigger than 4MB not currently supported |
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77 filesize = CARTRIDGE_WORDS*2; |
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78 } |
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79 fseek(f, 0, SEEK_SET); |
166 | 80 if (header[1] == SMD_MAGIC1 && header[8] == SMD_MAGIC2 && header[9] == SMD_MAGIC3) { |
81 int i; | |
82 for (i = 3; i < 8; i++) { | |
83 if (header[i] != 0) { | |
84 break; | |
85 } | |
86 } | |
87 if (i == 8) { | |
88 if (header[2]) { | |
89 fprintf(stderr, "%s is a split SMD ROM which is not currently supported", filename); | |
90 exit(1); | |
91 } | |
92 return load_smd_rom(filesize, f); | |
93 } | |
94 } | |
95 fread(cart, 2, filesize/2, f); | |
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96 fclose(f); |
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97 for(unsigned short * cur = cart; cur - cart < (filesize/2); ++cur) |
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98 { |
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99 *cur = (*cur >> 8) | (*cur << 8); |
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100 } |
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101 //TODO: Mirror ROM |
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102 return 1; |
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103 } |
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104 |
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105 uint16_t read_dma_value(uint32_t address) |
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106 { |
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107 //addresses here are word addresses (i.e. bit 0 corresponds to A1), so no need to do div by 2 |
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108 if (address < 0x200000) { |
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109 return cart[address]; |
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110 } else if(address >= 0x700000) { |
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111 return ram[address & 0x7FFF]; |
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112 } |
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113 //TODO: Figure out what happens when you try to DMA from weird adresses like IO or banked Z80 area |
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114 return 0; |
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115 } |
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116 |
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117 //TODO: Make these dependent on the video mode |
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118 //#define VINT_CYCLE ((MCLKS_LINE * 225 + (148 + 40) * 4)/MCLKS_PER_68K) |
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119 #define ZVINT_CYCLE ((MCLKS_LINE * 225 + (148 + 40) * 4)/MCLKS_PER_Z80) |
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120 //#define VINT_CYCLE ((MCLKS_LINE * 226)/MCLKS_PER_68K) |
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121 //#define ZVINT_CYCLE ((MCLKS_LINE * 226)/MCLKS_PER_Z80) |
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122 |
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123 void adjust_int_cycle(m68k_context * context, vdp_context * v_context) |
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124 { |
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125 context->int_cycle = CYCLE_NEVER; |
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126 if ((context->status & 0x7) < 6) { |
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127 uint32_t next_vint = vdp_next_vint(v_context); |
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128 if (next_vint != CYCLE_NEVER) { |
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129 next_vint /= MCLKS_PER_68K; |
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130 context->int_cycle = next_vint; |
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131 context->int_num = 6; |
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132 } |
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133 if ((context->status & 0x7) < 4) { |
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134 uint32_t next_hint = vdp_next_hint(v_context); |
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135 if (next_hint != CYCLE_NEVER) { |
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136 next_hint /= MCLKS_PER_68K; |
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137 if (next_hint < context->int_cycle) { |
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138 context->int_cycle = next_hint; |
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139 context->int_num = 4; |
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140 |
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141 } |
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142 } |
186
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143 } |
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144 } |
317
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145 |
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146 context->target_cycle = context->int_cycle < context->sync_cycle ? context->int_cycle : context->sync_cycle; |
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147 /*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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148 context->current_cycle, context->target_cycle, context->int_cycle, context->int_num, (context->status & 0x7), |
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149 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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150 } |
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151 |
198
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152 int break_on_sync = 0; |
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153 |
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154 uint8_t reset = 1; |
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155 uint8_t need_reset = 0; |
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156 uint8_t busreq = 0; |
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157 uint8_t busack = 0; |
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158 uint32_t busack_cycle = CYCLE_NEVER; |
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159 uint8_t new_busack = 0; |
280 | 160 //#define DO_DEBUG_PRINT |
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161 #ifdef DO_DEBUG_PRINT |
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162 #define dprintf printf |
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163 #define dputs puts |
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164 #else |
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165 #define dprintf |
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166 #define dputs |
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167 #endif |
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168 |
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169 #define Z80_VINT_DURATION 128 |
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170 |
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171 void sync_z80(z80_context * z_context, uint32_t mclks) |
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172 { |
265
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173 if (z80_enabled && !reset && !busreq) { |
333 | 174 genesis_context * gen = z_context->system; |
260
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175 if (need_reset) { |
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176 z80_reset(z_context); |
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177 need_reset = 0; |
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178 } |
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179 z_context->sync_cycle = mclks / MCLKS_PER_Z80; |
333 | 180 uint32_t vint_cycle = vdp_next_vint_z80(gen->vdp) / MCLKS_PER_Z80; |
260
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181 while (z_context->current_cycle < z_context->sync_cycle) { |
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182 if (z_context->iff1 && z_context->current_cycle < (vint_cycle + Z80_VINT_DURATION)) { |
335 | 183 z_context->int_cycle = vint_cycle < z_context->int_enable_cycle ? z_context->int_enable_cycle : vint_cycle; |
260
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184 } |
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185 z_context->target_cycle = z_context->sync_cycle < z_context->int_cycle ? z_context->sync_cycle : z_context->int_cycle; |
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186 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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187 z80_run(z_context); |
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188 dprintf("Z80 ran to cycle %d\n", z_context->current_cycle); |
260
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189 } |
289
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190 } else { |
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191 z_context->current_cycle = mclks / MCLKS_PER_Z80; |
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192 } |
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193 } |
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194 |
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195 void sync_sound(genesis_context * gen, uint32_t target) |
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196 { |
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197 //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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198 psg_run(gen->psg, target); |
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199 ym_run(gen->ym, target); |
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200 |
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201 //printf("Target: %d, YM bufferpos: %d, PSG bufferpos: %d\n", target, gen->ym->buffer_pos, gen->psg->buffer_pos * 2); |
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202 } |
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203 |
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204 uint32_t frame=0; |
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205 m68k_context * sync_components(m68k_context * context, uint32_t address) |
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206 { |
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207 //TODO: Handle sync targets smaller than a single frame |
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208 genesis_context * gen = context->system; |
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209 vdp_context * v_context = gen->vdp; |
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210 z80_context * z_context = gen->z80; |
268
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211 uint32_t mclks = context->current_cycle * MCLKS_PER_68K; |
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212 sync_z80(z_context, mclks); |
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213 if (mclks >= mclks_per_frame) { |
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214 sync_sound(gen, mclks); |
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215 gen->ym->current_cycle -= mclks_per_frame; |
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216 gen->psg->cycles -= mclks_per_frame; |
374 | 217 if (gen->ym->write_cycle != CYCLE_NEVER) { |
218 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; | |
219 } | |
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220 //printf("reached frame end | 68K Cycles: %d, MCLK Cycles: %d\n", context->current_cycle, mclks); |
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221 vdp_run_context(v_context, mclks_per_frame); |
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222 |
215
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223 if (!headless) { |
338
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224 break_on_sync |= wait_render_frame(v_context, frame_limit); |
215
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225 } |
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226 frame++; |
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227 mclks -= mclks_per_frame; |
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228 vdp_adjust_cycles(v_context, mclks_per_frame); |
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229 io_adjust_cycles(gen->ports, context->current_cycle, mclks_per_frame/MCLKS_PER_68K); |
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230 io_adjust_cycles(gen->ports+1, context->current_cycle, mclks_per_frame/MCLKS_PER_68K); |
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231 io_adjust_cycles(gen->ports+2, context->current_cycle, mclks_per_frame/MCLKS_PER_68K); |
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232 if (busack_cycle != CYCLE_NEVER) { |
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233 if (busack_cycle > mclks_per_frame/MCLKS_PER_68K) { |
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234 busack_cycle -= mclks_per_frame/MCLKS_PER_68K; |
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235 } else { |
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236 busack_cycle = CYCLE_NEVER; |
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237 busack = new_busack; |
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238 } |
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239 } |
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240 context->current_cycle -= mclks_per_frame/MCLKS_PER_68K; |
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241 if (z_context->current_cycle >= mclks_per_frame/MCLKS_PER_Z80) { |
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242 z_context->current_cycle -= mclks_per_frame/MCLKS_PER_Z80; |
260
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243 } else { |
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244 z_context->current_cycle = 0; |
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245 } |
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246 if (mclks) { |
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247 vdp_run_context(v_context, mclks); |
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248 } |
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249 } else { |
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250 //printf("running VDP for %d cycles\n", mclks - v_context->cycles); |
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251 vdp_run_context(v_context, mclks); |
380
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252 sync_sound(gen, mclks); |
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253 } |
317
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254 if (context->int_ack) { |
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255 vdp_int_ack(v_context, context->int_ack); |
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256 context->int_ack = 0; |
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257 } |
186
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258 adjust_int_cycle(context, v_context); |
198
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259 if (break_on_sync && address) { |
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260 break_on_sync = 0; |
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261 debugger(context, address); |
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262 } |
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263 return context; |
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264 } |
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265 |
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266 m68k_context * vdp_port_write(uint32_t vdp_port, m68k_context * context, uint16_t value) |
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267 { |
343
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268 if (vdp_port & 0x2700E0) { |
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269 printf("machine freeze due to write to address %X\n", 0xC00000 | vdp_port); |
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270 exit(1); |
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271 } |
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272 vdp_port &= 0x1F; |
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273 //printf("vdp_port write: %X, value: %X, cycle: %d\n", vdp_port, value, context->current_cycle); |
198
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274 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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260
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275 vdp_context * v_context = context->video_context; |
88
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276 if (vdp_port < 0x10) { |
149
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277 int blocked; |
345
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|
278 uint32_t before_cycle = v_context->cycles; |
88
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279 if (vdp_port < 4) { |
149
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280 while (vdp_data_port_write(v_context, value) < 0) { |
88
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281 while(v_context->flags & FLAG_DMA_RUN) { |
342
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282 vdp_run_dma_done(v_context, mclks_per_frame); |
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283 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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284 if (!headless) { |
338
5c34a9c39394
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336
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|
285 wait_render_frame(v_context, frame_limit); |
215
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286 } |
342
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287 vdp_adjust_cycles(v_context, mclks_per_frame); |
421
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|
288 genesis_context * gen = context->system; |
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289 io_adjust_cycles(gen->ports, v_context->cycles/MCLKS_PER_68K, mclks_per_frame/MCLKS_PER_68K); |
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290 io_adjust_cycles(gen->ports+1, v_context->cycles/MCLKS_PER_68K, mclks_per_frame/MCLKS_PER_68K); |
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291 io_adjust_cycles(gen->ports+2, v_context->cycles/MCLKS_PER_68K, mclks_per_frame/MCLKS_PER_68K); |
344
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292 if (busack_cycle != CYCLE_NEVER) { |
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diff
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293 if (busack_cycle > mclks_per_frame/MCLKS_PER_68K) { |
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|
294 busack_cycle -= mclks_per_frame/MCLKS_PER_68K; |
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diff
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|
295 } else { |
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|
296 busack_cycle = CYCLE_NEVER; |
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|
297 busack = new_busack; |
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|
298 } |
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|
299 } |
88
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300 } |
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|
301 } |
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|
302 context->current_cycle = v_context->cycles / MCLKS_PER_68K; |
149
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|
303 } |
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304 } else if(vdp_port < 8) { |
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305 blocked = vdp_control_port_write(v_context, value); |
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|
306 if (blocked) { |
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diff
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|
307 while (blocked) { |
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diff
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|
308 while(v_context->flags & FLAG_DMA_RUN) { |
342
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341
diff
changeset
|
309 vdp_run_dma_done(v_context, mclks_per_frame); |
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341
diff
changeset
|
310 if (v_context->cycles >= mclks_per_frame) { |
215
2b1c2c28b261
Added headless flag to avoid initializing SDL and opening a window when running tests.
Mike Pavone <pavone@retrodev.com>
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211
diff
changeset
|
311 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
|
312 wait_render_frame(v_context, frame_limit); |
215
2b1c2c28b261
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211
diff
changeset
|
313 } |
342
13f994c88c34
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parents:
341
diff
changeset
|
314 vdp_adjust_cycles(v_context, mclks_per_frame); |
421
d0cacb4ade0b
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418
diff
changeset
|
315 genesis_context * gen = context->system; |
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418
diff
changeset
|
316 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
|
317 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
|
318 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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|
319 if (busack_cycle != CYCLE_NEVER) { |
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diff
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|
320 if (busack_cycle > mclks_per_frame/MCLKS_PER_68K) { |
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diff
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|
321 busack_cycle -= mclks_per_frame/MCLKS_PER_68K; |
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343
diff
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|
322 } else { |
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343
diff
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|
323 busack_cycle = CYCLE_NEVER; |
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343
diff
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|
324 busack = new_busack; |
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343
diff
changeset
|
325 } |
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diff
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|
326 } |
149
139e5dcd6aa3
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144
diff
changeset
|
327 } |
139e5dcd6aa3
Make writes to control and data port block when DMA is in progress
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144
diff
changeset
|
328 } |
139e5dcd6aa3
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144
diff
changeset
|
329 if (blocked < 0) { |
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diff
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|
330 blocked = vdp_control_port_write(v_context, value); |
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diff
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|
331 } 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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|
332 blocked = 0; |
139e5dcd6aa3
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144
diff
changeset
|
333 } |
139e5dcd6aa3
Make writes to control and data port block when DMA is in progress
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144
diff
changeset
|
334 } |
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diff
changeset
|
335 context->current_cycle = v_context->cycles / MCLKS_PER_68K; |
88
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diff
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|
336 } 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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|
337 adjust_int_cycle(context, v_context); |
88
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|
338 } |
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|
339 } else { |
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|
340 printf("Illegal write to HV Counter port %X\n", vdp_port); |
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|
341 exit(1); |
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|
342 } |
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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|
343 if (v_context->cycles != before_cycle) { |
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
|
344 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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|
345 } |
88
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|
346 } else if (vdp_port < 0x18) { |
354
15dd6418fe67
Initial PSG support. Mostly works, noise channel is borked though.
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351
diff
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|
347 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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374
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|
348 sync_sound(gen, context->current_cycle * MCLKS_PER_68K); |
354
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Initial PSG support. Mostly works, noise channel is borked though.
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351
diff
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|
349 psg_write(gen->psg, value); |
88
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changeset
|
350 } else { |
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diff
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351 //TODO: Implement undocumented test register(s) |
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352 } |
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353 return context; |
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354 } |
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355 |
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356 m68k_context * vdp_port_write_b(uint32_t vdp_port, m68k_context * context, uint8_t value) |
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357 { |
357
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358 return vdp_port_write(vdp_port, context, vdp_port < 0x10 ? value | value << 8 : ((vdp_port & 1) ? value : 0)); |
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359 } |
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360 |
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361 z80_context * z80_vdp_port_write(uint16_t vdp_port, z80_context * context, uint8_t value) |
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362 { |
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363 genesis_context * gen = context->system; |
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364 if (vdp_port & 0xE0) { |
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365 printf("machine freeze due to write to Z80 address %X\n", 0x7F00 | vdp_port); |
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366 exit(1); |
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367 } |
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368 if (vdp_port < 0x10) { |
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369 //These probably won't currently interact well with the 68K accessing the VDP |
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370 vdp_run_context(gen->vdp, context->current_cycle * MCLKS_PER_Z80); |
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371 if (vdp_port < 4) { |
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372 vdp_data_port_write(gen->vdp, value << 8 | value); |
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373 } else if (vdp_port < 8) { |
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374 vdp_control_port_write(gen->vdp, value << 8 | value); |
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375 } else { |
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376 printf("Illegal write to HV Counter port %X\n", vdp_port); |
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377 exit(1); |
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378 } |
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379 } else if (vdp_port < 0x18) { |
380
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380 sync_sound(gen, context->current_cycle * MCLKS_PER_Z80); |
358
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381 psg_write(gen->psg, value); |
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382 } else { |
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383 //TODO: Implement undocumented test register(s) |
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384 } |
357
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385 return context; |
343
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386 } |
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387 |
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388 uint16_t vdp_port_read(uint32_t vdp_port, m68k_context * context) |
88
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389 { |
343
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390 if (vdp_port & 0x2700E0) { |
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391 printf("machine freeze due to read from address %X\n", 0xC00000 | vdp_port); |
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392 exit(1); |
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393 } |
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394 vdp_port &= 0x1F; |
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395 uint16_t value; |
198
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396 sync_components(context, 0); |
263
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397 vdp_context * v_context = context->video_context; |
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398 if (vdp_port < 0x10) { |
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399 if (vdp_port < 4) { |
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400 value = vdp_data_port_read(v_context); |
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401 } else if(vdp_port < 8) { |
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402 value = vdp_control_port_read(v_context); |
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403 } else { |
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404 value = vdp_hv_counter_read(v_context); |
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405 //printf("HV Counter: %X at cycle %d\n", value, v_context->cycles); |
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406 } |
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407 context->current_cycle = v_context->cycles/MCLKS_PER_68K; |
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408 } else { |
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409 printf("Illegal read from PSG or test register port %X\n", vdp_port); |
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410 exit(1); |
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411 } |
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412 return value; |
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413 } |
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414 |
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415 uint8_t vdp_port_read_b(uint32_t vdp_port, m68k_context * context) |
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416 { |
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417 uint16_t value = vdp_port_read(vdp_port, context); |
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418 if (vdp_port & 1) { |
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419 return value; |
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420 } else { |
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421 return value >> 8; |
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422 } |
88
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423 } |
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424 |
279
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425 uint32_t zram_counter = 0; |
289
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426 #define Z80_ACK_DELAY 3 |
336
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427 #define Z80_BUSY_DELAY 1//TODO: Find the actual value for this |
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428 #define Z80_REQ_BUSY 1 |
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429 #define Z80_REQ_ACK 0 |
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430 #define Z80_RES_BUSACK reset |
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431 |
88
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432 m68k_context * io_write(uint32_t location, m68k_context * context, uint8_t value) |
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433 { |
288
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434 genesis_context * gen = context->system; |
153
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435 if (location < 0x10000) { |
336
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436 if (busack_cycle <= context->current_cycle) { |
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437 busack = new_busack; |
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438 busack_cycle = CYCLE_NEVER; |
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439 } |
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440 if (!(busack || reset)) { |
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441 location &= 0x7FFF; |
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442 if (location < 0x4000) { |
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443 z80_ram[location & 0x1FFF] = value; |
288
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444 z80_handle_code_write(location & 0x1FFF, gen->z80); |
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445 } else if (location < 0x6000) { |
380
1c8d74f2ab0b
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446 sync_sound(gen, context->current_cycle * MCLKS_PER_68K); |
288
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447 if (location & 1) { |
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448 ym_data_write(gen->ym, value); |
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449 } else if(location & 2) { |
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450 ym_address_write_part2(gen->ym, value); |
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451 } else { |
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452 ym_address_write_part1(gen->ym, value); |
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453 } |
405
042c4ba4a838
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|
454 } else if (location == 0x6000) { |
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diff
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|
455 gen->z80->bank_reg = (gen->z80->bank_reg >> 1 | value << 8) & 0x1FF; |
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diff
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|
456 if (gen->z80->bank_reg < 0x80) { |
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404
diff
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|
457 gen->z80->mem_pointers[1] = (gen->z80->bank_reg << 15) + ((char *)gen->z80->mem_pointers[2]); |
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diff
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|
458 } else { |
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404
diff
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|
459 gen->z80->mem_pointers[1] = NULL; |
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404
diff
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|
460 } |
395
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461 } else { |
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462 printf("68K write to unhandled Z80 address %X\n", location); |
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|
463 exit(1); |
153
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464 } |
88
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|
465 } |
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466 } else { |
153
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|
467 location &= 0x1FFF; |
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468 if (location < 0x100) { |
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|
469 switch(location/2) |
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|
470 { |
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471 case 0x1: |
421
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472 io_data_write(gen->ports, value, context->current_cycle); |
153
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473 break; |
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474 case 0x2: |
421
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475 io_data_write(gen->ports+1, value, context->current_cycle); |
153
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476 break; |
421
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477 case 0x3: |
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478 io_data_write(gen->ports+2, value, context->current_cycle); |
153
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479 break; |
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480 case 0x4: |
421
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|
481 gen->ports[0].control = value; |
153
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482 break; |
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483 case 0x5: |
421
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484 gen->ports[1].control = value; |
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485 break; |
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486 case 0x6: |
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487 gen->ports[2].control = value; |
153
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488 break; |
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489 } |
153
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490 } else { |
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491 if (location == 0x1100) { |
288
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492 sync_z80(gen->z80, context->current_cycle * MCLKS_PER_68K); |
336
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493 if (busack_cycle <= context->current_cycle) { |
153
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494 busack = new_busack; |
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495 busack_cycle = CYCLE_NEVER; |
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496 } |
153
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497 if (value & 1) { |
271
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498 dputs("bus requesting Z80"); |
336
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499 |
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500 if(!reset && !busreq) { |
289
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501 busack_cycle = ((gen->z80->current_cycle + Z80_ACK_DELAY) * MCLKS_PER_Z80) / MCLKS_PER_68K;//context->current_cycle + Z80_ACK_DELAY; |
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502 new_busack = Z80_REQ_ACK; |
153
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503 } |
364
62177cc39049
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diff
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504 busreq = 1; |
153
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505 } else { |
260
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506 if (busreq) { |
271
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507 dputs("releasing z80 bus"); |
280 | 508 #ifdef DO_DEBUG_PRINT |
279
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|
509 char fname[20]; |
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510 sprintf(fname, "zram-%d", zram_counter++); |
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511 FILE * f = fopen(fname, "wb"); |
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512 fwrite(z80_ram, 1, sizeof(z80_ram), f); |
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513 fclose(f); |
280 | 514 #endif |
336
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|
515 busack_cycle = ((gen->z80->current_cycle + Z80_BUSY_DELAY) * MCLKS_PER_Z80) / MCLKS_PER_68K; |
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|
516 new_busack = Z80_REQ_BUSY; |
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|
517 busreq = 0; |
260
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518 } |
289
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|
519 //busack_cycle = CYCLE_NEVER; |
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|
520 //busack = Z80_REQ_BUSY; |
336
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diff
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|
521 |
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522 } |
153
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523 } else if (location == 0x1200) { |
288
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|
524 sync_z80(gen->z80, context->current_cycle * MCLKS_PER_68K); |
153
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|
525 if (value & 1) { |
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|
526 if (reset && busreq) { |
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|
527 new_busack = 0; |
289
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|
528 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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|
529 } |
260
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215
diff
changeset
|
530 //TODO: Deal with the scenario in which reset is not asserted long enough |
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diff
changeset
|
531 if (reset) { |
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diff
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|
532 need_reset = 1; |
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215
diff
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|
533 //TODO: Add necessary delay between release of reset and start of execution |
288
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|
534 gen->z80->current_cycle = (context->current_cycle * MCLKS_PER_68K) / MCLKS_PER_Z80; |
260
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diff
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|
535 } |
153
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diff
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|
536 reset = 0; |
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149
diff
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|
537 } else { |
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|
538 reset = 1; |
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|
539 } |
88
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parents:
diff
changeset
|
540 } |
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parents:
diff
changeset
|
541 } |
c339559f1d4f
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parents:
diff
changeset
|
542 } |
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parents:
diff
changeset
|
543 return context; |
c339559f1d4f
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parents:
diff
changeset
|
544 } |
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parents:
diff
changeset
|
545 |
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parents:
diff
changeset
|
546 m68k_context * io_write_w(uint32_t location, m68k_context * context, uint16_t value) |
c339559f1d4f
Forgot to add blastem main file earlier
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parents:
diff
changeset
|
547 { |
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
|
548 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
|
549 return io_write(location, context, value >> 8); |
88
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parents:
diff
changeset
|
550 } 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
|
551 return io_write(location, context, value); |
88
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parents:
diff
changeset
|
552 } |
c339559f1d4f
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parents:
diff
changeset
|
553 } |
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parents:
diff
changeset
|
554 |
130
0bdbffa9fe90
Make version register return correct value for USA
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parents:
115
diff
changeset
|
555 #define USA 0x80 |
0bdbffa9fe90
Make version register return correct value for USA
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115
diff
changeset
|
556 #define JAP 0x00 |
0bdbffa9fe90
Make version register return correct value for USA
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115
diff
changeset
|
557 #define EUR 0xC0 |
0bdbffa9fe90
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115
diff
changeset
|
558 #define NO_DISK 0x20 |
0bdbffa9fe90
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diff
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|
559 uint8_t version_reg = NO_DISK | USA; |
0bdbffa9fe90
Make version register return correct value for USA
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115
diff
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|
560 |
343
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diff
changeset
|
561 uint8_t io_read(uint32_t location, m68k_context * context) |
88
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|
562 { |
343
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342
diff
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|
563 uint8_t value; |
288
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parents:
280
diff
changeset
|
564 genesis_context *gen = context->system; |
153
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diff
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|
565 if (location < 0x10000) { |
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
|
566 if (busack_cycle <= context->current_cycle) { |
153
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149
diff
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|
567 busack = new_busack; |
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|
568 busack_cycle = CYCLE_NEVER; |
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|
569 } |
289
1cc0850ab6bc
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288
diff
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|
570 if (!(busack==Z80_REQ_BUSY || reset)) { |
153
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diff
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|
571 location &= 0x7FFF; |
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|
572 if (location < 0x4000) { |
343
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diff
changeset
|
573 value = z80_ram[location & 0x1FFF]; |
288
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parents:
280
diff
changeset
|
574 } 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.
Mike Pavone <pavone@retrodev.com>
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374
diff
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|
575 sync_sound(gen, context->current_cycle * MCLKS_PER_68K); |
343
467bfa17004a
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342
diff
changeset
|
576 value = ym_read_status(gen->ym); |
153
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diff
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|
577 } else { |
343
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578 value = 0xFF; |
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579 } |
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580 } else { |
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581 value = 0xFF; |
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582 } |
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583 } else { |
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584 location &= 0x1FFF; |
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585 if (location < 0x100) { |
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586 switch(location/2) |
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587 { |
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588 case 0x0: |
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589 //version bits should be 0 for now since we're not emulating TMSS |
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590 value = version_reg; |
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591 break; |
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592 case 0x1: |
421
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593 value = io_data_read(gen->ports, context->current_cycle); |
343
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594 break; |
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595 case 0x2: |
421
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596 value = io_data_read(gen->ports+1, context->current_cycle); |
343
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597 break; |
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598 case 0x3: |
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599 value = io_data_read(gen->ports+2, context->current_cycle); |
343
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600 break; |
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601 case 0x4: |
421
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602 value = gen->ports[0].control; |
343
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603 break; |
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604 case 0x5: |
421
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605 value = gen->ports[1].control; |
343
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606 break; |
421
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607 case 0x6: |
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608 value = gen->ports[2].control; |
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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diff
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|
609 break; |
343
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|
610 default: |
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611 value = 0xFF; |
153
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diff
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612 } |
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613 } else { |
343
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614 if (location == 0x1100) { |
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615 if (busack_cycle <= context->current_cycle) { |
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616 busack = new_busack; |
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617 busack_cycle = CYCLE_NEVER; |
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618 } |
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619 value = Z80_RES_BUSACK || busack; |
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620 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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621 } else if (location == 0x1200) { |
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622 value = !reset; |
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623 } else { |
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624 value = 0xFF; |
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625 printf("Byte read of unknown IO location: %X\n", location); |
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626 } |
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627 } |
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628 } |
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|
629 return value; |
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630 } |
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|
631 |
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632 uint16_t io_read_w(uint32_t location, m68k_context * context) |
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633 { |
404
88fa2ad53e64
Minor refactor of io_read functions to avoid duplication of logic between byte and word versions
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634 uint16_t value = io_read(location, context); |
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Minor refactor of io_read functions to avoid duplication of logic between byte and word versions
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635 if (location < 0x10000 || (location & 0x1FFF) < 0x100) { |
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636 value = value | (value << 8); |
88
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637 } else { |
404
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Minor refactor of io_read functions to avoid duplication of logic between byte and word versions
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|
638 value <<= 8; |
88
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|
639 } |
343
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|
640 return value; |
88
c339559f1d4f
Forgot to add blastem main file earlier
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changeset
|
641 } |
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Forgot to add blastem main file earlier
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diff
changeset
|
642 |
290
171f97e70d85
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|
643 z80_context * z80_write_ym(uint16_t location, z80_context * context, uint8_t value) |
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|
644 { |
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|
645 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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|
646 sync_sound(gen, context->current_cycle * MCLKS_PER_Z80); |
290
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|
647 if (location & 1) { |
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|
648 ym_data_write(gen->ym, value); |
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|
649 } else if (location & 2) { |
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|
650 ym_address_write_part2(gen->ym, value); |
171f97e70d85
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|
651 } else { |
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|
652 ym_address_write_part1(gen->ym, value); |
171f97e70d85
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|
653 } |
171f97e70d85
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|
654 return context; |
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|
655 } |
171f97e70d85
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diff
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|
656 |
171f97e70d85
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|
657 uint8_t z80_read_ym(uint16_t location, z80_context * context) |
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|
658 { |
171f97e70d85
Implement writes from Z80 to YM-2612
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diff
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|
659 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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|
660 sync_sound(gen, context->current_cycle * MCLKS_PER_Z80); |
290
171f97e70d85
Implement writes from Z80 to YM-2612
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|
661 return ym_read_status(gen->ym); |
171f97e70d85
Implement writes from Z80 to YM-2612
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diff
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|
662 } |
171f97e70d85
Implement writes from Z80 to YM-2612
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|
663 |
351
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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|
664 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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|
665 { |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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|
666 genesis_context * gen = context->system; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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|
667 address &= gen->save_ram_mask; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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|
668 switch(gen->save_flags) |
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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|
670 case RAM_FLAG_BOTH: |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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diff
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|
671 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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|
672 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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|
673 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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|
674 case RAM_FLAG_ODD: |
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 >> 1] | 0xFF00; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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|
676 } |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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|
677 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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|
678 } |
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 |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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|
680 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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|
681 { |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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|
682 genesis_context * gen = context->system; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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|
683 address &= gen->save_ram_mask; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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|
684 switch(gen->save_flags) |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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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 case RAM_FLAG_BOTH: |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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|
687 return gen->save_ram[address]; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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|
688 case RAM_FLAG_EVEN: |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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|
689 if (address & 1) { |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
changeset
|
690 return 0xFF; |
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
|
691 } else { |
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 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
|
693 } |
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 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
|
695 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
|
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 } 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
|
698 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
|
699 } |
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 } |
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 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
|
702 } |
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 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
|
705 { |
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 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
|
707 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
|
708 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
|
709 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
|
710 { |
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 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
|
712 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
|
713 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
|
714 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
|
715 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
|
716 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
|
717 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
|
718 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
|
719 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
|
720 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
|
721 } |
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 } |
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 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
|
724 } |
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 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
|
727 { |
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 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
|
729 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
|
730 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
|
731 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
|
732 { |
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 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
|
734 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
|
735 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
|
736 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
|
737 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
|
738 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
|
739 } |
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 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
|
741 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
|
742 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
|
743 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
|
744 } |
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 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
|
746 } |
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 } |
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 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
|
749 } |
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 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
|
752 { |
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 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
|
754 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
|
755 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
|
756 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
|
757 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
|
758 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
|
759 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
|
760 } 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
|
761 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
|
762 } |
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 } |
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 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
|
765 } |
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 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
|
768 { |
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 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
|
770 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
|
771 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
|
772 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
|
773 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
|
774 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
|
775 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
|
776 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
|
777 } 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
|
778 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
|
779 } |
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 } |
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 } |
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 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
|
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 |
184
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
785 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
|
786 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
|
787 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
|
788 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
|
789 } 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 |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
791 bp_def * breakpoints = NULL; |
366
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
792 bp_def * zbreakpoints = NULL; |
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
diff
changeset
|
793 uint32_t bp_index = 0; |
366
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
794 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>
parents:
166
diff
changeset
|
795 |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
796 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>
parents:
166
diff
changeset
|
797 { |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
798 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
|
799 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
|
800 break; |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
801 } |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
802 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
|
803 } |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
804 return cur; |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
805 } |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
806 |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
807 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
|
808 { |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
809 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
|
810 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
|
811 break; |
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 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
|
814 } |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
815 return cur; |
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
diff
changeset
|
817 |
372
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
818 typedef struct disp_def { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
819 struct disp_def * next; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
820 char * param; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
821 uint32_t index; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
822 char format_char; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
823 } disp_def; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
824 |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
825 disp_def * displays = NULL; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
826 disp_def * zdisplays = NULL; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
827 uint32_t disp_index = 0; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
828 uint32_t zdisp_index = 0; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
829 |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
830 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
|
831 { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
832 disp_def * ndisp = malloc(sizeof(*ndisp)); |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
833 ndisp->format_char = format_char; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
834 ndisp->param = strdup(param); |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
835 ndisp->next = *head; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
836 ndisp->index = *index++; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
837 *head = ndisp; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
838 } |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
839 |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
840 void remove_display(disp_def ** head, uint32_t index) |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
841 { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
842 while (*head) { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
843 if ((*head)->index == index) { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
844 disp_def * del_disp = *head; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
845 *head = del_disp->next; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
846 free(del_disp->param); |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
847 free(del_disp); |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
848 } else { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
849 head = &(*head)->next; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
850 } |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
851 } |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
852 } |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
853 |
184
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
854 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
|
855 { |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
856 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
|
857 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
|
858 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
|
859 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
|
860 } |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
861 } |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
862 } |
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 NULL; |
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 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
|
867 { |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
868 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
|
869 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
|
870 *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
|
871 return; |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
872 } |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
873 } |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
874 } |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
875 |
372
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
876 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
|
877 { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
878 uint32_t value; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
879 char format[8]; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
880 strcpy(format, "%s: %d\n"); |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
881 switch (format_char) |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
882 { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
883 case 'x': |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
884 case 'X': |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
885 case 'd': |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
886 case 'c': |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
887 format[5] = format_char; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
888 break; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
889 case '\0': |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
890 break; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
891 default: |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
892 fprintf(stderr, "Unrecognized format character: %c\n", format_char); |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
893 } |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
894 switch (param[0]) |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
895 { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
896 case 'a': |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
897 if (param[1] == 'f') { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
898 if(param[2] == '\'') { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
899 value = context->alt_regs[Z80_A] << 8; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
900 value |= context->alt_flags[ZF_S] << 7; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
901 value |= context->alt_flags[ZF_Z] << 6; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
902 value |= context->alt_flags[ZF_H] << 4; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
903 value |= context->alt_flags[ZF_PV] << 2; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
904 value |= context->alt_flags[ZF_N] << 1; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
905 value |= context->alt_flags[ZF_C]; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
906 } else { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
907 value = context->regs[Z80_A] << 8; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
908 value |= context->flags[ZF_S] << 7; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
909 value |= context->flags[ZF_Z] << 6; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
910 value |= context->flags[ZF_H] << 4; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
911 value |= context->flags[ZF_PV] << 2; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
912 value |= context->flags[ZF_N] << 1; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
913 value |= context->flags[ZF_C]; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
914 } |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
915 } else if(param[1] == '\'') { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
916 value = context->alt_regs[Z80_A]; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
917 } else { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
918 value = context->regs[Z80_A]; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
919 } |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
920 break; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
921 case 'b': |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
922 if (param[1] == 'c') { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
923 if(param[2] == '\'') { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
924 value = context->alt_regs[Z80_B] << 8; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
925 value |= context->alt_regs[Z80_C]; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
926 } else { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
927 value = context->regs[Z80_B] << 8; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
928 value |= context->regs[Z80_C]; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
929 } |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
930 } else if(param[1] == '\'') { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
931 value = context->alt_regs[Z80_B]; |
392
1b80b90399da
Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
380
diff
changeset
|
932 } else if(param[1] == 'a') { |
1b80b90399da
Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
380
diff
changeset
|
933 value = context->bank_reg << 15; |
372
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
934 } else { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
935 value = context->regs[Z80_B]; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
936 } |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
937 break; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
938 case 'c': |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
939 if(param[1] == '\'') { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
940 value = context->alt_regs[Z80_C]; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
941 } else if(param[1] == 'y') { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
942 value = context->current_cycle; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
943 } else { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
944 value = context->regs[Z80_C]; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
945 } |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
946 break; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
947 case 'd': |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
948 if (param[1] == 'e') { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
949 if(param[2] == '\'') { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
950 value = context->alt_regs[Z80_D] << 8; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
951 value |= context->alt_regs[Z80_E]; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
952 } else { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
953 value = context->regs[Z80_D] << 8; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
954 value |= context->regs[Z80_E]; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
955 } |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
956 } else if(param[1] == '\'') { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
957 value = context->alt_regs[Z80_D]; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
958 } else { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
959 value = context->regs[Z80_D]; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
960 } |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
961 break; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
962 case 'e': |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
963 if(param[1] == '\'') { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
964 value = context->alt_regs[Z80_E]; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
965 } else { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
966 value = context->regs[Z80_E]; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
967 } |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
968 break; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
969 case 'f': |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
970 if(param[2] == '\'') { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
971 value = context->alt_flags[ZF_S] << 7; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
972 value |= context->alt_flags[ZF_Z] << 6; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
973 value |= context->alt_flags[ZF_H] << 4; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
974 value |= context->alt_flags[ZF_PV] << 2; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
975 value |= context->alt_flags[ZF_N] << 1; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
976 value |= context->alt_flags[ZF_C]; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
977 } else { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
978 value = context->flags[ZF_S] << 7; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
979 value |= context->flags[ZF_Z] << 6; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
980 value |= context->flags[ZF_H] << 4; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
981 value |= context->flags[ZF_PV] << 2; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
982 value |= context->flags[ZF_N] << 1; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
983 value |= context->flags[ZF_C]; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
984 } |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
985 break; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
986 case 'h': |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
987 if (param[1] == 'l') { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
988 if(param[2] == '\'') { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
989 value = context->alt_regs[Z80_H] << 8; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
990 value |= context->alt_regs[Z80_L]; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
991 } else { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
992 value = context->regs[Z80_H] << 8; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
993 value |= context->regs[Z80_L]; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
994 } |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
995 } else if(param[1] == '\'') { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
996 value = context->alt_regs[Z80_H]; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
997 } else { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
998 value = context->regs[Z80_H]; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
999 } |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1000 break; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1001 case 'l': |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1002 if(param[1] == '\'') { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1003 value = context->alt_regs[Z80_L]; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1004 } else { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1005 value = context->regs[Z80_L]; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1006 } |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1007 break; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1008 case 'i': |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1009 if(param[1] == 'x') { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1010 if (param[2] == 'h') { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1011 value = context->regs[Z80_IXH]; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1012 } else if(param[2] == 'l') { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1013 value = context->regs[Z80_IXL]; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1014 } else { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1015 value = context->regs[Z80_IXH] << 8; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1016 value |= context->regs[Z80_IXL]; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1017 } |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1018 } else if(param[1] == 'y') { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1019 if (param[2] == 'h') { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1020 value = context->regs[Z80_IYH]; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1021 } else if(param[2] == 'l') { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1022 value = context->regs[Z80_IYL]; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1023 } else { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1024 value = context->regs[Z80_IYH] << 8; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1025 value |= context->regs[Z80_IYL]; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1026 } |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1027 } else if(param[1] == 'n') { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1028 value = context->int_cycle; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1029 } 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
|
1030 value = context->iff1; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1031 } 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
|
1032 value = context->iff2; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1033 } else { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1034 value = context->im; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1035 } |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1036 break; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1037 case 's': |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1038 if (param[1] == 'p') { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1039 value = context->sp; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1040 } |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1041 break; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1042 case '0': |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1043 if (param[1] == 'x') { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1044 uint16_t p_addr = strtol(param+2, NULL, 16); |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1045 if (p_addr < 0x4000) { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1046 value = z80_ram[p_addr & 0x1FFF]; |
392
1b80b90399da
Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
380
diff
changeset
|
1047 } else if(p_addr >= 0x8000) { |
1b80b90399da
Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
380
diff
changeset
|
1048 uint32_t v_addr = context->bank_reg << 15; |
1b80b90399da
Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
380
diff
changeset
|
1049 v_addr += p_addr & 0x7FFF; |
1b80b90399da
Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
380
diff
changeset
|
1050 if (v_addr < 0x400000) { |
1b80b90399da
Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
380
diff
changeset
|
1051 value = cart[v_addr/2]; |
1b80b90399da
Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
380
diff
changeset
|
1052 } else if(v_addr > 0xE00000) { |
1b80b90399da
Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
380
diff
changeset
|
1053 value = ram[(v_addr & 0xFFFF)/2]; |
1b80b90399da
Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
380
diff
changeset
|
1054 } |
1b80b90399da
Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
380
diff
changeset
|
1055 if (v_addr & 1) { |
1b80b90399da
Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
380
diff
changeset
|
1056 value &= 0xFF; |
1b80b90399da
Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
380
diff
changeset
|
1057 } else { |
1b80b90399da
Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
380
diff
changeset
|
1058 value >>= 8; |
1b80b90399da
Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
380
diff
changeset
|
1059 } |
372
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1060 } |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1061 } |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1062 break; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1063 } |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1064 printf(format, param, value); |
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 |
366
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1067 z80_context * zdebugger(z80_context * context, uint16_t address) |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1068 { |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1069 static char last_cmd[1024]; |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1070 char input_buf[1024]; |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1071 static uint16_t branch_t; |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1072 static uint16_t branch_f; |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1073 z80inst inst; |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1074 //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
|
1075 bp_def ** this_bp = find_breakpoint(&zbreakpoints, address); |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1076 if (*this_bp) { |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1077 printf("Z80 Breakpoint %d hit\n", (*this_bp)->index); |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1078 } else { |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1079 zremove_breakpoint(context, address); |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1080 } |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1081 uint8_t * pc; |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1082 if (address < 0x4000) { |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1083 pc = z80_ram + (address & 0x1FFF); |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1084 } else if (address >= 0x8000) { |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1085 if (context->bank_reg < (0x400000 >> 15)) { |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1086 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
|
1087 exit(1); |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1088 } else { |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1089 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
|
1090 exit(1); |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1091 } |
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 at address %X\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 } |
372
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1096 for (disp_def * cur = zdisplays; cur; cur = cur->next) { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1097 zdebugger_print(context, cur->format_char, cur->param); |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1098 } |
366
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1099 uint8_t * after_pc = z80_decode(pc, &inst); |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1100 z80_disasm(&inst, input_buf, address); |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1101 printf("%X:\t%s\n", address, input_buf); |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1102 uint16_t after = address + (after_pc-pc); |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1103 int debugging = 1; |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1104 while(debugging) { |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1105 fputs(">", stdout); |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1106 if (!fgets(input_buf, sizeof(input_buf), stdin)) { |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1107 fputs("fgets failed", stderr); |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1108 break; |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1109 } |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1110 strip_nl(input_buf); |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1111 //hitting enter repeats last command |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1112 if (input_buf[0]) { |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1113 strcpy(last_cmd, input_buf); |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1114 } else { |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1115 strcpy(input_buf, last_cmd); |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1116 } |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1117 char * param; |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1118 char format[8]; |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1119 uint32_t value; |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1120 bp_def * new_bp; |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1121 switch(input_buf[0]) |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1122 { |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1123 case 'a': |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1124 param = find_param(input_buf); |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1125 if (!param) { |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1126 fputs("a command requires a parameter\n", stderr); |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1127 break; |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1128 } |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1129 value = strtol(param, NULL, 16); |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1130 zinsert_breakpoint(context, value, (uint8_t *)zdebugger); |
392
1b80b90399da
Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
380
diff
changeset
|
1131 debugging = 0; |
366
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1132 break; |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1133 case 'b': |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1134 param = find_param(input_buf); |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1135 if (!param) { |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1136 fputs("b command requires a parameter\n", stderr); |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1137 break; |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1138 } |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1139 value = strtol(param, NULL, 16); |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1140 zinsert_breakpoint(context, value, (uint8_t *)zdebugger); |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1141 new_bp = malloc(sizeof(bp_def)); |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1142 new_bp->next = zbreakpoints; |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1143 new_bp->address = value; |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1144 new_bp->index = zbp_index++; |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1145 zbreakpoints = new_bp; |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1146 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
|
1147 break; |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1148 case 'c': |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1149 puts("Continuing"); |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1150 debugging = 0; |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1151 break; |
372
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1152 case 'd': |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1153 if (input_buf[1] == 'i') { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1154 char format_char = 0; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1155 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
|
1156 if (input_buf[i] == '/') { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1157 format_char = input_buf[i+1]; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1158 break; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1159 } |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1160 } |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1161 param = find_param(input_buf); |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1162 if (!param) { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1163 fputs("display command requires a parameter\n", stderr); |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1164 break; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1165 } |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1166 zdebugger_print(context, format_char, param); |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1167 add_display(&zdisplays, &zdisp_index, format_char, param); |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1168 } else if (input_buf[1] == 'e' || input_buf[1] == ' ') { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1169 param = find_param(input_buf); |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1170 if (!param) { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1171 fputs("delete command requires a parameter\n", stderr); |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1172 break; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1173 } |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1174 if (param[0] >= '0' && param[0] <= '9') { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1175 value = atoi(param); |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1176 this_bp = find_breakpoint_idx(&zbreakpoints, value); |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1177 if (!*this_bp) { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1178 fprintf(stderr, "Breakpoint %d does not exist\n", value); |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1179 break; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1180 } |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1181 new_bp = *this_bp; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1182 zremove_breakpoint(context, new_bp->address); |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1183 *this_bp = new_bp->next; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1184 free(new_bp); |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1185 } else if (param[0] == 'd') { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1186 param = find_param(param); |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1187 if (!param) { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1188 fputs("delete display command requires a parameter\n", stderr); |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1189 break; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1190 } |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1191 remove_display(&zdisplays, atoi(param)); |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1192 } |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1193 } |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1194 break; |
366
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1195 case 'n': |
392
1b80b90399da
Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
380
diff
changeset
|
1196 //TODO: Handle conditional branch instructions |
1b80b90399da
Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
380
diff
changeset
|
1197 if (inst.op == Z80_JP) { |
1b80b90399da
Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
380
diff
changeset
|
1198 if (inst.addr_mode == Z80_IMMED) { |
1b80b90399da
Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
380
diff
changeset
|
1199 after = inst.immed; |
1b80b90399da
Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
380
diff
changeset
|
1200 } else if (inst.ea_reg == Z80_HL) { |
1b80b90399da
Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
380
diff
changeset
|
1201 after = context->regs[Z80_H] << 8 | context->regs[Z80_L]; |
1b80b90399da
Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
380
diff
changeset
|
1202 } else if (inst.ea_reg == Z80_IX) { |
1b80b90399da
Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
380
diff
changeset
|
1203 after = context->regs[Z80_IXH] << 8 | context->regs[Z80_IXL]; |
1b80b90399da
Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
380
diff
changeset
|
1204 } else if (inst.ea_reg == Z80_IY) { |
1b80b90399da
Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
380
diff
changeset
|
1205 after = context->regs[Z80_IYH] << 8 | context->regs[Z80_IYL]; |
1b80b90399da
Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
380
diff
changeset
|
1206 } |
1b80b90399da
Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
380
diff
changeset
|
1207 } else if(inst.op == Z80_JR) { |
1b80b90399da
Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
380
diff
changeset
|
1208 after += inst.immed; |
1b80b90399da
Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
380
diff
changeset
|
1209 } else if(inst.op == Z80_RET) { |
1b80b90399da
Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
380
diff
changeset
|
1210 if (context->sp < 0x4000) { |
1b80b90399da
Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
380
diff
changeset
|
1211 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
|
1212 } |
1b80b90399da
Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
380
diff
changeset
|
1213 } |
366
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1214 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
|
1215 debugging = 0; |
366
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1216 break; |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1217 case 'p': |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1218 param = find_param(input_buf); |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1219 if (!param) { |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1220 fputs("p command requires a parameter\n", stderr); |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1221 break; |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1222 } |
372
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1223 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
|
1224 break; |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1225 case 'q': |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1226 puts("Quitting"); |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1227 exit(0); |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1228 break; |
395
0b5f93358a93
Add debugger command for saving Z80 RAM to a file
Mike Pavone <pavone@retrodev.com>
parents:
392
diff
changeset
|
1229 case 's': { |
0b5f93358a93
Add debugger command for saving Z80 RAM to a file
Mike Pavone <pavone@retrodev.com>
parents:
392
diff
changeset
|
1230 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
|
1231 if (!param) { |
0b5f93358a93
Add debugger command for saving Z80 RAM to a file
Mike Pavone <pavone@retrodev.com>
parents:
392
diff
changeset
|
1232 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
|
1233 break; |
0b5f93358a93
Add debugger command for saving Z80 RAM to a file
Mike Pavone <pavone@retrodev.com>
parents:
392
diff
changeset
|
1234 } |
0b5f93358a93
Add debugger command for saving Z80 RAM to a file
Mike Pavone <pavone@retrodev.com>
parents:
392
diff
changeset
|
1235 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
|
1236 if (f) { |
0b5f93358a93
Add debugger command for saving Z80 RAM to a file
Mike Pavone <pavone@retrodev.com>
parents:
392
diff
changeset
|
1237 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
|
1238 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
|
1239 } |
0b5f93358a93
Add debugger command for saving Z80 RAM to a file
Mike Pavone <pavone@retrodev.com>
parents:
392
diff
changeset
|
1240 fclose(f); |
0b5f93358a93
Add debugger command for saving Z80 RAM to a file
Mike Pavone <pavone@retrodev.com>
parents:
392
diff
changeset
|
1241 } else { |
0b5f93358a93
Add debugger command for saving Z80 RAM to a file
Mike Pavone <pavone@retrodev.com>
parents:
392
diff
changeset
|
1242 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
|
1243 } |
0b5f93358a93
Add debugger command for saving Z80 RAM to a file
Mike Pavone <pavone@retrodev.com>
parents:
392
diff
changeset
|
1244 break; |
0b5f93358a93
Add debugger command for saving Z80 RAM to a file
Mike Pavone <pavone@retrodev.com>
parents:
392
diff
changeset
|
1245 } |
366
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1246 default: |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1247 fprintf(stderr, "Unrecognized debugger command %s\n", input_buf); |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1248 break; |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1249 } |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1250 } |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1251 return context; |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1252 } |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1253 |
184
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1254 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
|
1255 { |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1256 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
|
1257 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
|
1258 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
|
1259 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
|
1260 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
|
1261 //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
|
1262 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
|
1263 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
|
1264 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
|
1265 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
|
1266 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
|
1267 } |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1268 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
|
1269 } 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
|
1270 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
|
1271 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
|
1272 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
|
1273 } |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1274 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
|
1275 } |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1276 //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
|
1277 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
|
1278 if (*this_bp) { |
366
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1279 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
|
1280 } else { |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1281 remove_breakpoint(context, 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 } |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1283 uint16_t * pc; |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1284 if (address < 0x400000) { |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
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166
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|
1285 pc = cart + address/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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|
1286 } else if(address > 0xE00000) { |
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 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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|
1288 } else { |
366
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
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364
diff
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|
1289 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
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|
1290 exit(1); |
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Fix a bunch of bugs in the CPU core, add a 68K debugger
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parents:
166
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1291 } |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
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166
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|
1292 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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|
1293 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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|
1294 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
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|
1295 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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|
1296 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
diff
changeset
|
1297 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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166
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|
1298 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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|
1299 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
|
1300 fputs("fgets failed", 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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|
1301 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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166
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1302 } |
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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|
1303 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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|
1304 //hitting enter repeats last command |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
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166
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|
1305 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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|
1306 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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|
1307 } 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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|
1308 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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|
1309 } |
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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
|
1310 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
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|
1311 char format[8]; |
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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 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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|
1313 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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|
1314 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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|
1315 { |
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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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|
1316 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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|
1317 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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|
1318 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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|
1319 break; |
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
|
1320 case 'b': |
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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
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|
1321 param = find_param(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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|
1322 if (!param) { |
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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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|
1323 fputs("b command requires a parameter\n", stderr); |
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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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|
1324 break; |
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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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|
1325 } |
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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|
1326 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
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|
1327 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
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|
1328 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
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|
1329 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
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|
1330 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
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|
1331 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
|
1332 breakpoints = new_bp; |
366
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
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|
1333 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
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|
1334 break; |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1335 case 'a': |
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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|
1336 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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|
1337 if (!param) { |
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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|
1338 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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|
1339 break; |
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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
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|
1340 } |
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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|
1341 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
|
1342 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
|
1343 debugging = 0; |
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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|
1344 break; |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1345 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
|
1346 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
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|
1347 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
|
1348 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
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|
1349 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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|
1350 } |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1351 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
|
1352 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
|
1353 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
|
1354 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
|
1355 break; |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1356 } |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1357 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
|
1358 *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
|
1359 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
|
1360 break; |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1361 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
|
1362 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
|
1363 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
|
1364 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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|
1365 { |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1366 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
|
1367 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
|
1368 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
|
1369 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
|
1370 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
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|
1371 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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|
1372 default: |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1373 fprintf(stderr, "Unrecognized format character: %c\n", input_buf[2]); |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
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166
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|
1374 } |
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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|
1375 } |
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
|
1376 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
|
1377 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
diff
changeset
|
1378 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
|
1379 break; |
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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|
1380 } |
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[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>
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166
diff
changeset
|
1382 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>
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166
diff
changeset
|
1383 } 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
|
1384 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
|
1385 } else if (param[0] == 'S' && param[1] == 'R') { |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
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166
diff
changeset
|
1386 value = (context->status << 8); |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
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166
diff
changeset
|
1387 for (int flag = 0; flag < 5; flag++) { |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
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166
diff
changeset
|
1388 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>
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166
diff
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|
1389 } |
185
b204fbed4efe
Add ability to print out current 68K cycle in debugger
Mike Pavone <pavone@retrodev.com>
parents:
184
diff
changeset
|
1390 } 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
|
1391 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
|
1392 } 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
|
1393 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
|
1394 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
|
1395 } else { |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1396 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
|
1397 break; |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1398 } |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1399 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
|
1400 break; |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1401 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
|
1402 //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
|
1403 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
|
1404 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
|
1405 } 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
|
1406 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
|
1407 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
|
1408 } else { |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1409 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
|
1410 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
|
1411 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
|
1412 } |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1413 } |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1414 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
|
1415 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
|
1416 break; |
327
1b00258b1f29
Added some basic VDP debugging features to debugger. Fixed DMA enable bug
Mike Pavone <pavone@retrodev.com>
parents:
321
diff
changeset
|
1417 case 'v': { |
1b00258b1f29
Added some basic VDP debugging features to debugger. Fixed DMA enable bug
Mike Pavone <pavone@retrodev.com>
parents:
321
diff
changeset
|
1418 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
|
1419 //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
|
1420 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
|
1421 { |
1b00258b1f29
Added some basic VDP debugging features to debugger. Fixed DMA enable bug
Mike Pavone <pavone@retrodev.com>
parents:
321
diff
changeset
|
1422 case 's': |
1b00258b1f29
Added some basic VDP debugging features to debugger. Fixed DMA enable bug
Mike Pavone <pavone@retrodev.com>
parents:
321
diff
changeset
|
1423 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
|
1424 break; |
1b00258b1f29
Added some basic VDP debugging features to debugger. Fixed DMA enable bug
Mike Pavone <pavone@retrodev.com>
parents:
321
diff
changeset
|
1425 case 'r': |
1b00258b1f29
Added some basic VDP debugging features to debugger. Fixed DMA enable bug
Mike Pavone <pavone@retrodev.com>
parents:
321
diff
changeset
|
1426 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
|
1427 break; |
1b00258b1f29
Added some basic VDP debugging features to debugger. Fixed DMA enable bug
Mike Pavone <pavone@retrodev.com>
parents:
321
diff
changeset
|
1428 } |
1b00258b1f29
Added some basic VDP debugging features to debugger. Fixed DMA enable bug
Mike Pavone <pavone@retrodev.com>
parents:
321
diff
changeset
|
1429 break; |
1b00258b1f29
Added some basic VDP debugging features to debugger. Fixed DMA enable bug
Mike Pavone <pavone@retrodev.com>
parents:
321
diff
changeset
|
1430 } |
366
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1431 case 'z': { |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1432 genesis_context * gen = context->system; |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1433 //Z80 debug commands |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1434 switch(input_buf[1]) |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1435 { |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1436 case 'b': |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1437 param = find_param(input_buf); |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1438 if (!param) { |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1439 fputs("zb command requires a parameter\n", stderr); |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1440 break; |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1441 } |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1442 value = strtol(param, NULL, 16); |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1443 zinsert_breakpoint(gen->z80, value, (uint8_t *)zdebugger); |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1444 new_bp = malloc(sizeof(bp_def)); |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1445 new_bp->next = zbreakpoints; |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1446 new_bp->address = value; |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1447 new_bp->index = zbp_index++; |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1448 zbreakpoints = new_bp; |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1449 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
|
1450 break; |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1451 } |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1452 break; |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1453 } |
184
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1454 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
|
1455 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
|
1456 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
|
1457 break; |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1458 default: |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1459 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
|
1460 break; |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1461 } |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1462 } |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1463 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
|
1464 } |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1465 |
424
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1466 #define GST_68K_REGS 0x80 |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1467 #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
|
1468 #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
|
1469 #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
|
1470 #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
|
1471 #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
|
1472 #define GST_68K_RAM 0x2478 |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1473 #define GST_Z80_REGS 0x404 |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1474 #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
|
1475 #define GST_Z80_RAM 0x474 |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1476 |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1477 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
|
1478 { |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1479 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
|
1480 } |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1481 |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1482 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
|
1483 { |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1484 return data[1] << 8 | data[0]; |
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 |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1487 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
|
1488 { |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1489 return data[0] << 8 | data[1]; |
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 |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1492 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
|
1493 { |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1494 uint8_t buffer[4096]; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1495 fseek(gstfile, GST_68K_REGS, SEEK_SET); |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1496 if (fread(buffer, 1, GST_68K_REG_SIZE, gstfile) != GST_68K_REG_SIZE) { |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1497 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
|
1498 return 0; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1499 } |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1500 uint8_t * curpos = buffer; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1501 for (int i = 0; i < 8; i++) { |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1502 context->dregs[i] = read_le_32(curpos); |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1503 curpos += sizeof(uint32_t); |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1504 } |
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->aregs[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 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
|
1510 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
|
1511 context->status = sr >> 8; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1512 for (int flag = 4; flag >= 0; flag--) { |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1513 context->flags[flag] = sr & 1; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1514 sr >>= 1; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1515 } |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1516 if (context->status & (1 << 5)) { |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1517 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
|
1518 } else { |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1519 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
|
1520 } |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1521 fseek(gstfile, GST_68K_RAM, SEEK_SET); |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1522 for (int i = 0; i < (32*1024);) { |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1523 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
|
1524 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
|
1525 return 0; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1526 } |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1527 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
|
1528 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
|
1529 } |
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 return pc; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1532 } |
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 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
|
1535 { |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1536 uint8_t regdata[GST_Z80_REG_SIZE]; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1537 fseek(gstfile, GST_Z80_REGS, SEEK_SET); |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1538 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
|
1539 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
|
1540 return 0; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1541 } |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1542 uint8_t * curpos = regdata; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1543 uint8_t f = *(curpos++); |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1544 context->flags[ZF_C] = f & 1; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1545 f >>= 1; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1546 context->flags[ZF_N] = f & 1; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1547 f >>= 1; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1548 context->flags[ZF_PV] = f & 1; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1549 f >>= 2; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1550 context->flags[ZF_H] = f & 1; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1551 f >>= 2; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1552 context->flags[ZF_Z] = f & 1; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1553 f >>= 1; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1554 context->flags[ZF_S] = f; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1555 |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1556 context->regs[Z80_A] = *curpos; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1557 curpos += 3; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1558 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
|
1559 context->regs[reg++] = *(curpos++); |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1560 context->regs[reg] = *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 } |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1563 uint16_t pc = read_le_16(curpos); |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1564 curpos += 4; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1565 context->sp = read_le_16(curpos); |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1566 curpos += 4; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1567 f = *(curpos++); |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1568 context->alt_flags[ZF_C] = f & 1; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1569 f >>= 1; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1570 context->alt_flags[ZF_N] = f & 1; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1571 f >>= 1; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1572 context->alt_flags[ZF_PV] = f & 1; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1573 f >>= 2; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1574 context->alt_flags[ZF_H] = f & 1; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1575 f >>= 2; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1576 context->alt_flags[ZF_Z] = f & 1; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1577 f >>= 1; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1578 context->alt_flags[ZF_S] = f; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1579 context->alt_regs[Z80_A] = *curpos; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1580 curpos += 3; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1581 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
|
1582 context->alt_regs[reg++] = *(curpos++); |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1583 context->alt_regs[reg] = *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 } |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1586 context->regs[Z80_I] = *curpos; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1587 curpos += 2; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1588 context->iff1 = context->iff2 = *curpos; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1589 curpos += 2; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1590 reset = !*(curpos++); |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1591 busreq = *curpos; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1592 curpos += 3; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1593 uint32_t bank = read_le_32(curpos); |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1594 if (bank < 0x400000) { |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1595 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
|
1596 } else { |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1597 context->mem_pointers[1] = NULL; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1598 } |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1599 context->bank_reg = bank >> 15; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1600 fseek(gstfile, GST_Z80_RAM, SEEK_SET); |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1601 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
|
1602 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
|
1603 return 0; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1604 } |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1605 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
|
1606 return 1; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1607 } |
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 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
|
1610 { |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1611 FILE * gstfile = fopen(fname, "rb"); |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1612 if (!gstfile) { |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1613 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
|
1614 goto error; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1615 } |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1616 char ident[5]; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1617 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
|
1618 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
|
1619 goto error_close; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1620 } |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1621 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
|
1622 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
|
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 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
|
1626 if (!pc) { |
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 if (!vdp_load_gst(gen->vdp, gstfile)) { |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1630 goto error_close; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1631 } |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1632 if (!ym_load_gst(gen->ym, gstfile)) { |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1633 goto error_close; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1634 } |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1635 if (!z80_load_gst(gen->z80, gstfile)) { |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1636 goto error_close; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1637 } |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1638 gen->ports[0].control = 0x40; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1639 gen->ports[1].control = 0x40; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1640 adjust_int_cycle(gen->m68k, gen->vdp); |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1641 fclose(gstfile); |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1642 return pc; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1643 |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1644 error_close: |
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 error: |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1647 return 0; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1648 } |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1649 |
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
|
1650 #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
|
1651 #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
|
1652 #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
|
1653 #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
|
1654 #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
|
1655 #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
|
1656 #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
|
1657 |
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 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
|
1659 {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
|
1660 NULL, NULL, NULL, NULL}, |
467bfa17004a
Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents:
342
diff
changeset
|
1661 {0xE00000, 0x1000000, 0xFFFF, 0, MMAP_READ | MMAP_WRITE | MMAP_CODE, ram, |
467bfa17004a
Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents:
342
diff
changeset
|
1662 NULL, NULL, NULL, NULL}, |
467bfa17004a
Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents:
342
diff
changeset
|
1663 {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
|
1664 (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
|
1665 (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
|
1666 {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
|
1667 (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
|
1668 (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
|
1669 }; |
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
|
1670 |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
1671 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
|
1672 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
|
1673 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
|
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 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
|
1676 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
|
1677 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
|
1678 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
|
1679 } |
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 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
|
1681 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
|
1682 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
|
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 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
|
1685 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
|
1686 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
|
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 |
424
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1689 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
|
1690 { |
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 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
|
1692 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
|
1693 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
|
1694 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
|
1695 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
|
1696 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
|
1697 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
|
1698 //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
|
1699 //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
|
1700 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
|
1701 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
|
1702 //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
|
1703 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
|
1704 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
|
1705 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
|
1706 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
|
1707 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
|
1708 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
|
1709 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
|
1710 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
|
1711 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
|
1712 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
|
1713 memmap[0].buffer = cart; |
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 |
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 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
|
1716 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
|
1717 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
|
1718 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
|
1719 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
|
1720 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
|
1721 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
|
1722 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
|
1723 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
|
1724 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
|
1725 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
|
1726 } 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.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
1727 memmap[1].flags |= MMAP_ONLY_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
|
1728 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
|
1729 } |
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 memmap[1].buffer = gen->save_ram = malloc(size); |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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diff
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|
1731 |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
changeset
|
1732 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
|
1733 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
|
1734 } else { |
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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|
1735 //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
|
1736 memmap[0].end = 0x200000; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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parents:
346
diff
changeset
|
1737 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
|
1738 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
|
1739 memmap[0].buffer = cart; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
changeset
|
1740 |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
changeset
|
1741 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
|
1742 memmap[1].end = 0x400000; |
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
|
1743 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
|
1744 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
|
1745 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
|
1746 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
|
1747 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
|
1748 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
|
1749 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
|
1750 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
|
1751 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
|
1752 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
|
1753 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
|
1754 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
|
1755 memset(memmap+num_chunks, 0, sizeof(memmap[num_chunks])); |
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
|
1756 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
|
1757 memmap[num_chunks].end = 0xA13100; |
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
|
1758 memmap[num_chunks].mask = 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
|
1759 memmap[num_chunks].write_16 = (write_16_fun)write_bank_reg_w; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
1760 memmap[num_chunks].write_8 = (write_8_fun)write_bank_reg_b; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
changeset
|
1761 num_chunks++; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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parents:
346
diff
changeset
|
1762 ram_end++; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
changeset
|
1763 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
|
1764 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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parents:
346
diff
changeset
|
1765 size /= 2; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
changeset
|
1766 } |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
1767 gen->save_ram = malloc(size); |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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parents:
346
diff
changeset
|
1768 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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346
diff
changeset
|
1769 } |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
1770 } 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
|
1771 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
|
1772 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
|
1773 } |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
changeset
|
1774 if (gen->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
|
1775 memset(gen->save_ram, 0, 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
|
1776 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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346
diff
changeset
|
1777 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
|
1778 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.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
1779 fclose(f); |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
changeset
|
1780 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
|
1781 printf("Loaded SRAM from %s\n", sram_filename); |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
changeset
|
1782 } |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
changeset
|
1783 } |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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parents:
346
diff
changeset
|
1784 atexit(save_sram); |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
changeset
|
1785 } |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
changeset
|
1786 init_x86_68k_opts(&opts, memmap, num_chunks); |
211 | 1787 opts.address_log = address_log; |
1788 init_68k_context(&context, opts.native_code_map, &opts); | |
1789 | |
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
|
1790 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>
parents:
280
diff
changeset
|
1791 context.system = gen; |
211 | 1792 //cartridge ROM |
1793 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
|
1794 context.target_cycle = context.sync_cycle = mclks_per_frame/MCLKS_PER_68K; |
211 | 1795 //work RAM |
1796 context.mem_pointers[1] = ram; | |
351
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
changeset
|
1797 //save RAM/map |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
changeset
|
1798 context.mem_pointers[2] = initial_mapped; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
changeset
|
1799 context.mem_pointers[3] = (uint16_t *)gen->save_ram; |
211 | 1800 uint32_t address; |
1801 address = cart[2] << 16 | cart[3]; | |
1802 translate_m68k_stream(address, &context); | |
424
7e8e179116af
Add support for loading GST format savestates
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parents:
422
diff
changeset
|
1803 if (statefile) { |
7e8e179116af
Add support for loading GST format savestates
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422
diff
changeset
|
1804 uint32_t pc = load_gst(gen, statefile); |
7e8e179116af
Add support for loading GST format savestates
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422
diff
changeset
|
1805 if (!pc) { |
7e8e179116af
Add support for loading GST format savestates
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422
diff
changeset
|
1806 exit(1); |
7e8e179116af
Add support for loading GST format savestates
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parents:
422
diff
changeset
|
1807 } |
7e8e179116af
Add support for loading GST format savestates
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422
diff
changeset
|
1808 if (debug) { |
7e8e179116af
Add support for loading GST format savestates
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422
diff
changeset
|
1809 insert_breakpoint(&context, pc, (uint8_t *)debugger); |
7e8e179116af
Add support for loading GST format savestates
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diff
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|
1810 } |
7e8e179116af
Add support for loading GST format savestates
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422
diff
changeset
|
1811 start_68k_context(&context, pc); |
7e8e179116af
Add support for loading GST format savestates
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422
diff
changeset
|
1812 } else { |
7e8e179116af
Add support for loading GST format savestates
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422
diff
changeset
|
1813 if (debug) { |
7e8e179116af
Add support for loading GST format savestates
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diff
changeset
|
1814 insert_breakpoint(&context, address, (uint8_t *)debugger); |
7e8e179116af
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422
diff
changeset
|
1815 } |
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diff
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|
1816 m68k_reset(&context); |
211 | 1817 } |
1818 } | |
1819 | |
340
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|
1820 char title[64]; |
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|
1821 |
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diff
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|
1822 #define TITLE_START 0x150 |
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|
1823 #define TITLE_END (TITLE_START+48) |
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|
1824 |
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diff
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|
1825 void update_title() |
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diff
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|
1826 { |
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diff
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|
1827 uint16_t *last = cart + TITLE_END/2 - 1; |
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|
1828 while(last > cart + TITLE_START/2 && *last == 0x2020) |
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|
1829 { |
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diff
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|
1830 last--; |
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|
1831 } |
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|
1832 uint16_t *start = cart + TITLE_START/2; |
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|
1833 char *cur = title; |
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|
1834 char last_char = ' '; |
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|
1835 for (; start != last; start++) |
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diff
changeset
|
1836 { |
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|
1837 if ((last_char != ' ' || (*start >> 8) != ' ') && (*start >> 8) < 0x80) { |
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|
1838 *(cur++) = *start >> 8; |
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|
1839 last_char = *start >> 8; |
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diff
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|
1840 } |
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diff
changeset
|
1841 if (last_char != ' ' || (*start & 0xFF) != ' ' && (*start & 0xFF) < 0x80) { |
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diff
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|
1842 *(cur++) = *start; |
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|
1843 last_char = *start & 0xFF; |
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|
1844 } |
58a085cfc6bd
Set window title based on ROM header name
Mike Pavone <pavone@retrodev.com>
parents:
338
diff
changeset
|
1845 } |
58a085cfc6bd
Set window title based on ROM header name
Mike Pavone <pavone@retrodev.com>
parents:
338
diff
changeset
|
1846 *(cur++) = *start >> 8; |
58a085cfc6bd
Set window title based on ROM header name
Mike Pavone <pavone@retrodev.com>
parents:
338
diff
changeset
|
1847 if ((*start & 0xFF) != ' ') { |
58a085cfc6bd
Set window title based on ROM header name
Mike Pavone <pavone@retrodev.com>
parents:
338
diff
changeset
|
1848 *(cur++) = *start; |
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 strcpy(cur, " - BlastEm"); |
58a085cfc6bd
Set window title based on ROM header name
Mike Pavone <pavone@retrodev.com>
parents:
338
diff
changeset
|
1851 } |
58a085cfc6bd
Set window title based on ROM header name
Mike Pavone <pavone@retrodev.com>
parents:
338
diff
changeset
|
1852 |
341
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1853 #define REGION_START 0x1F0 |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1854 |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1855 int detect_specific_region(char region) |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1856 { |
346
aff29d50afd5
Fix a region detection bug
Mike Pavone <pavone@retrodev.com>
parents:
345
diff
changeset
|
1857 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
|
1858 } |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1859 |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1860 void detect_region() |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1861 { |
343
467bfa17004a
Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents:
342
diff
changeset
|
1862 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
|
1863 version_reg = NO_DISK | USA; |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1864 } else if (detect_specific_region('J')) { |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1865 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
|
1866 } 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
|
1867 version_reg = NO_DISK | EUR; |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1868 } |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1869 } |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1870 |
88
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1871 int main(int argc, char ** argv) |
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1872 { |
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1873 if (argc < 2) { |
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1874 fputs("Usage: blastem FILENAME\n", stderr); |
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1875 return 1; |
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1876 } |
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1877 if(!load_rom(argv[1])) { |
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1878 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
|
1879 return 1; |
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1880 } |
341
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1881 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
|
1882 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
|
1883 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
|
1884 int debug = 0; |
407
c3abc4ada43d
Add support for logging YM2612 channels to WAVE files
Mike Pavone <pavone@retrodev.com>
parents:
405
diff
changeset
|
1885 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
|
1886 FILE *address_log = NULL; |
425
8b3ae850d1c4
Forgot to null initialize the statfile pointer
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
1887 char * statefile = NULL; |
184
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1888 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
|
1889 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
|
1890 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
|
1891 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
|
1892 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
|
1893 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
|
1894 case 'f': |
356
79e4b466e7d0
Get rid of debug puts and limit based on audio rather than frame rate by default.
Mike Pavone <pavone@retrodev.com>
parents:
354
diff
changeset
|
1895 frame_limit = 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
|
1896 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
|
1897 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
|
1898 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
|
1899 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
|
1900 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
|
1901 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
|
1902 break; |
265
c6d12878ea93
Add -n flag for disabling the Z80 core
Mike Pavone <pavone@retrodev.com>
parents:
264
diff
changeset
|
1903 case 'n': |
c6d12878ea93
Add -n flag for disabling the Z80 core
Mike Pavone <pavone@retrodev.com>
parents:
264
diff
changeset
|
1904 z80_enabled = 0; |
c6d12878ea93
Add -n flag for disabling the Z80 core
Mike Pavone <pavone@retrodev.com>
parents:
264
diff
changeset
|
1905 break; |
341
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1906 case 'r': |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1907 i++; |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1908 if (i >= argc) { |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1909 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
|
1910 return 1; |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1911 } |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1912 switch (argv[i][0]) |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1913 { |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1914 case 'j': |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1915 case 'J': |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1916 version_reg = NO_DISK | JAP; |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1917 break; |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1918 case 'u': |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1919 case 'U': |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1920 version_reg = NO_DISK | USA; |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1921 break; |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1922 case 'e': |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1923 case 'E': |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1924 version_reg = NO_DISK | EUR; |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1925 break; |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1926 default: |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1927 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
|
1928 return 1; |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1929 } |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1930 break; |
424
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1931 case 's': |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1932 i++; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1933 if (i >= argc) { |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1934 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
|
1935 return 1; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1936 } |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1937 statefile = argv[i]; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1938 break; |
407
c3abc4ada43d
Add support for logging YM2612 channels to WAVE files
Mike Pavone <pavone@retrodev.com>
parents:
405
diff
changeset
|
1939 case 'y': |
c3abc4ada43d
Add support for logging YM2612 channels to WAVE files
Mike Pavone <pavone@retrodev.com>
parents:
405
diff
changeset
|
1940 ym_log = 1; |
c3abc4ada43d
Add support for logging YM2612 channels to WAVE files
Mike Pavone <pavone@retrodev.com>
parents:
405
diff
changeset
|
1941 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
|
1942 default: |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1943 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
diff
changeset
|
1944 return 1; |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1945 } |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1946 } else if (width < 0) { |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1947 width = atoi(argv[i]); |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1948 } else if (height < 0) { |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1949 height = atoi(argv[i]); |
88
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1950 } |
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1951 } |
340
58a085cfc6bd
Set window title based on ROM header name
Mike Pavone <pavone@retrodev.com>
parents:
338
diff
changeset
|
1952 update_title(); |
422
642b2f8aee32
Change default resolution to 640x480
Mike Pavone <pavone@retrodev.com>
parents:
421
diff
changeset
|
1953 width = width < 320 ? 640 : width; |
184
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1954 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
|
1955 uint32_t fps = 60; |
342
13f994c88c34
Get frame time correct and frame rate sort of correct for EUR region
Mike Pavone <pavone@retrodev.com>
parents:
341
diff
changeset
|
1956 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
changeset
|
1957 mclks_per_frame = MCLKS_LINE * LINES_PAL; |
354
15dd6418fe67
Initial PSG support. Mostly works, noise channel is borked though.
Mike Pavone <pavone@retrodev.com>
parents:
351
diff
changeset
|
1958 fps = 50; |
15dd6418fe67
Initial PSG support. Mostly works, noise channel is borked though.
Mike Pavone <pavone@retrodev.com>
parents:
351
diff
changeset
|
1959 } |
15dd6418fe67
Initial PSG support. Mostly works, noise channel is borked though.
Mike Pavone <pavone@retrodev.com>
parents:
351
diff
changeset
|
1960 if (!headless) { |
15dd6418fe67
Initial PSG support. Mostly works, noise channel is borked though.
Mike Pavone <pavone@retrodev.com>
parents:
351
diff
changeset
|
1961 render_init(width, height, title, fps); |
342
13f994c88c34
Get frame time correct and frame rate sort of correct for EUR region
Mike Pavone <pavone@retrodev.com>
parents:
341
diff
changeset
|
1962 } |
88
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1963 vdp_context v_context; |
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1964 |
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1965 init_vdp_context(&v_context); |
260
625f8e4d5fd2
Initial stab at integartiong Z80 core
Mike Pavone <pavone@retrodev.com>
parents:
215
diff
changeset
|
1966 |
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
|
1967 ym2612_context y_context; |
407
c3abc4ada43d
Add support for logging YM2612 channels to WAVE files
Mike Pavone <pavone@retrodev.com>
parents:
405
diff
changeset
|
1968 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); |
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
|
1969 |
354
15dd6418fe67
Initial PSG support. Mostly works, noise channel is borked though.
Mike Pavone <pavone@retrodev.com>
parents:
351
diff
changeset
|
1970 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
|
1971 psg_init(&p_context, render_sample_rate(), fps == 60 ? MCLKS_NTSC : MCLKS_PAL, MCLKS_PER_PSG, render_audio_buffer()); |
354
15dd6418fe67
Initial PSG support. Mostly works, noise channel is borked though.
Mike Pavone <pavone@retrodev.com>
parents:
351
diff
changeset
|
1972 |
260
625f8e4d5fd2
Initial stab at integartiong Z80 core
Mike Pavone <pavone@retrodev.com>
parents:
215
diff
changeset
|
1973 z80_context z_context; |
625f8e4d5fd2
Initial stab at integartiong Z80 core
Mike Pavone <pavone@retrodev.com>
parents:
215
diff
changeset
|
1974 x86_z80_options z_opts; |
625f8e4d5fd2
Initial stab at integartiong Z80 core
Mike Pavone <pavone@retrodev.com>
parents:
215
diff
changeset
|
1975 init_x86_z80_opts(&z_opts); |
625f8e4d5fd2
Initial stab at integartiong Z80 core
Mike Pavone <pavone@retrodev.com>
parents:
215
diff
changeset
|
1976 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
|
1977 |
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
|
1978 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
|
1979 memset(&gen, 0, sizeof(gen)); |
290
171f97e70d85
Implement writes from Z80 to YM-2612
Mike Pavone <pavone@retrodev.com>
parents:
289
diff
changeset
|
1980 |
171f97e70d85
Implement writes from Z80 to YM-2612
Mike Pavone <pavone@retrodev.com>
parents:
289
diff
changeset
|
1981 z_context.system = &gen; |
260
625f8e4d5fd2
Initial stab at integartiong Z80 core
Mike Pavone <pavone@retrodev.com>
parents:
215
diff
changeset
|
1982 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
|
1983 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
|
1984 z_context.int_cycle = CYCLE_NEVER; |
625f8e4d5fd2
Initial stab at integartiong Z80 core
Mike Pavone <pavone@retrodev.com>
parents:
215
diff
changeset
|
1985 z_context.mem_pointers[1] = z_context.mem_pointers[2] = (uint8_t *)cart; |
625f8e4d5fd2
Initial stab at integartiong Z80 core
Mike Pavone <pavone@retrodev.com>
parents:
215
diff
changeset
|
1986 |
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
|
1987 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
|
1988 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
|
1989 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
|
1990 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
|
1991 genesis = &gen; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
1992 |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
1993 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
|
1994 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
|
1995 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
|
1996 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
|
1997 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
|
1998 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
|
1999 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
|
2000 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
|
2001 } |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
2002 } |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
2003 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
|
2004 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
|
2005 } |
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
|
2006 set_keybindings(); |
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
|
2007 |
424
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
2008 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
|
2009 return 0; |
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
2010 } |