Mercurial > repos > blastem
annotate blastem.c @ 482:4b24260125f3
Theoretically more correct timing of Z80 bus request
author | Mike Pavone <pavone@retrodev.com> |
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date | Wed, 18 Sep 2013 19:10:54 -0700 |
parents | f065769836e8 |
children | 3e1573fa22cf |
rev | line source |
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1 /* |
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2 Copyright 2013 Michael Pavone |
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3 This file is part of BlastEm. |
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4 BlastEm is free software distributed under the terms of the GNU General Public License version 3 or greater. See COPYING for full license text. |
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5 */ |
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6 #include "68kinst.h" |
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7 #include "m68k_to_x86.h" |
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8 #include "z80_to_x86.h" |
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9 #include "mem.h" |
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10 #include "vdp.h" |
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11 #include "render.h" |
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12 #include "blastem.h" |
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13 #include "gst.h" |
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14 #include <stdio.h> |
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15 #include <stdlib.h> |
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16 #include <string.h> |
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17 |
464 | 18 #define BLASTEM_VERSION "0.1.0" |
19 | |
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20 #define CARTRIDGE_WORDS 0x200000 |
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21 #define RAM_WORDS 32 * 1024 |
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22 #define Z80_RAM_BYTES 8 * 1024 |
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23 |
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24 #define MCLKS_NTSC 53693175 |
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25 #define MCLKS_PAL 53203395 |
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26 |
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27 #define MCLKS_PER_68K 7 |
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28 #define MCLKS_PER_YM MCLKS_PER_68K |
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29 #define MCLKS_PER_Z80 15 |
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30 #define MCLKS_PER_PSG (MCLKS_PER_Z80*16) |
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31 |
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32 //TODO: Figure out the exact value for this |
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33 #define LINES_NTSC 262 |
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34 #define LINES_PAL 312 |
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35 |
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36 uint32_t mclks_per_frame = MCLKS_LINE*LINES_NTSC; |
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37 |
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38 uint16_t cart[CARTRIDGE_WORDS]; |
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39 uint16_t ram[RAM_WORDS]; |
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40 uint8_t z80_ram[Z80_RAM_BYTES]; |
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41 |
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42 int headless = 0; |
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43 int z80_enabled = 1; |
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44 int frame_limit = 0; |
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45 |
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46 tern_node * config; |
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47 |
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48 #ifndef MIN |
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49 #define MIN(a,b) ((a) < (b) ? (a) : (b)) |
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50 #endif |
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51 |
166 | 52 #define SMD_HEADER_SIZE 512 |
53 #define SMD_MAGIC1 0x03 | |
54 #define SMD_MAGIC2 0xAA | |
55 #define SMD_MAGIC3 0xBB | |
56 #define SMD_BLOCK_SIZE 0x4000 | |
57 | |
58 int load_smd_rom(long filesize, FILE * f) | |
59 { | |
60 uint8_t block[SMD_BLOCK_SIZE]; | |
61 filesize -= SMD_HEADER_SIZE; | |
62 fseek(f, SMD_HEADER_SIZE, SEEK_SET); | |
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63 |
166 | 64 uint16_t * dst = cart; |
65 while (filesize > 0) { | |
66 fread(block, 1, SMD_BLOCK_SIZE, f); | |
67 for (uint8_t *low = block, *high = (block+SMD_BLOCK_SIZE/2), *end = block+SMD_BLOCK_SIZE; high < end; high++, low++) { | |
68 *(dst++) = *high << 8 | *low; | |
69 } | |
70 filesize -= SMD_BLOCK_SIZE; | |
71 } | |
72 return 1; | |
73 } | |
74 | |
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75 int load_rom(char * filename) |
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76 { |
166 | 77 uint8_t header[10]; |
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78 FILE * f = fopen(filename, "rb"); |
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79 if (!f) { |
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80 return 0; |
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81 } |
166 | 82 fread(header, 1, sizeof(header), f); |
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83 fseek(f, 0, SEEK_END); |
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84 long filesize = ftell(f); |
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85 if (filesize/2 > CARTRIDGE_WORDS) { |
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86 //carts bigger than 4MB not currently supported |
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87 filesize = CARTRIDGE_WORDS*2; |
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88 } |
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89 fseek(f, 0, SEEK_SET); |
166 | 90 if (header[1] == SMD_MAGIC1 && header[8] == SMD_MAGIC2 && header[9] == SMD_MAGIC3) { |
91 int i; | |
92 for (i = 3; i < 8; i++) { | |
93 if (header[i] != 0) { | |
94 break; | |
95 } | |
96 } | |
97 if (i == 8) { | |
98 if (header[2]) { | |
99 fprintf(stderr, "%s is a split SMD ROM which is not currently supported", filename); | |
100 exit(1); | |
101 } | |
102 return load_smd_rom(filesize, f); | |
103 } | |
104 } | |
105 fread(cart, 2, filesize/2, f); | |
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106 fclose(f); |
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107 for(unsigned short * cur = cart; cur - cart < (filesize/2); ++cur) |
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108 { |
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109 *cur = (*cur >> 8) | (*cur << 8); |
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110 } |
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111 //TODO: Mirror ROM |
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112 return 1; |
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113 } |
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114 |
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115 uint16_t read_dma_value(uint32_t address) |
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116 { |
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117 //addresses here are word addresses (i.e. bit 0 corresponds to A1), so no need to do div by 2 |
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118 if (address < 0x200000) { |
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119 return cart[address]; |
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120 } else if(address >= 0x700000) { |
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121 return ram[address & 0x7FFF]; |
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122 } |
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123 //TODO: Figure out what happens when you try to DMA from weird adresses like IO or banked Z80 area |
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124 return 0; |
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125 } |
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126 |
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127 //TODO: Make these dependent on the video mode |
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128 //#define VINT_CYCLE ((MCLKS_LINE * 225 + (148 + 40) * 4)/MCLKS_PER_68K) |
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129 #define ZVINT_CYCLE ((MCLKS_LINE * 225 + (148 + 40) * 4)/MCLKS_PER_Z80) |
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130 //#define VINT_CYCLE ((MCLKS_LINE * 226)/MCLKS_PER_68K) |
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131 //#define ZVINT_CYCLE ((MCLKS_LINE * 226)/MCLKS_PER_Z80) |
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132 |
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133 void adjust_int_cycle(m68k_context * context, vdp_context * v_context) |
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134 { |
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135 context->int_cycle = CYCLE_NEVER; |
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136 if ((context->status & 0x7) < 6) { |
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137 uint32_t next_vint = vdp_next_vint(v_context); |
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138 if (next_vint != CYCLE_NEVER) { |
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139 next_vint /= MCLKS_PER_68K; |
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140 context->int_cycle = next_vint; |
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141 context->int_num = 6; |
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142 } |
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143 if ((context->status & 0x7) < 4) { |
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144 uint32_t next_hint = vdp_next_hint(v_context); |
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145 if (next_hint != CYCLE_NEVER) { |
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146 next_hint /= MCLKS_PER_68K; |
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147 if (next_hint < context->int_cycle) { |
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148 context->int_cycle = next_hint; |
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149 context->int_num = 4; |
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150 |
317
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151 } |
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152 } |
186
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153 } |
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154 } |
317
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155 |
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156 context->target_cycle = context->int_cycle < context->sync_cycle ? context->int_cycle : context->sync_cycle; |
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157 /*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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158 context->current_cycle, context->target_cycle, context->int_cycle, context->int_num, (context->status & 0x7), |
317
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159 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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160 } |
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161 |
198
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162 int break_on_sync = 0; |
451
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163 int save_state = 0; |
260
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164 |
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165 uint8_t reset = 1; |
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166 uint8_t need_reset = 0; |
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167 uint8_t busreq = 0; |
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168 uint8_t busack = 0; |
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169 uint32_t busack_cycle = CYCLE_NEVER; |
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170 uint8_t new_busack = 0; |
280 | 171 //#define DO_DEBUG_PRINT |
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172 #ifdef DO_DEBUG_PRINT |
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173 #define dprintf printf |
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174 #define dputs puts |
268
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175 #else |
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176 #define dprintf |
271
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177 #define dputs |
268
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178 #endif |
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179 |
402
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180 #define Z80_VINT_DURATION 128 |
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181 |
268
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182 void sync_z80(z80_context * z_context, uint32_t mclks) |
88
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183 { |
265
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184 if (z80_enabled && !reset && !busreq) { |
333 | 185 genesis_context * gen = z_context->system; |
260
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186 if (need_reset) { |
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187 z80_reset(z_context); |
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188 need_reset = 0; |
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189 } |
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190 z_context->sync_cycle = mclks / MCLKS_PER_Z80; |
333 | 191 uint32_t vint_cycle = vdp_next_vint_z80(gen->vdp) / MCLKS_PER_Z80; |
260
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192 while (z_context->current_cycle < z_context->sync_cycle) { |
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193 if (z_context->iff1 && z_context->current_cycle < (vint_cycle + Z80_VINT_DURATION)) { |
335 | 194 z_context->int_cycle = vint_cycle < z_context->int_enable_cycle ? z_context->int_enable_cycle : vint_cycle; |
260
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195 } |
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196 z_context->target_cycle = z_context->sync_cycle < z_context->int_cycle ? z_context->sync_cycle : z_context->int_cycle; |
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197 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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198 z80_run(z_context); |
268
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199 dprintf("Z80 ran to cycle %d\n", z_context->current_cycle); |
260
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200 } |
289
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201 } else { |
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202 z_context->current_cycle = mclks / MCLKS_PER_Z80; |
260
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203 } |
268
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204 } |
380
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205 |
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206 void sync_sound(genesis_context * gen, uint32_t target) |
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207 { |
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208 //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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209 psg_run(gen->psg, target); |
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210 ym_run(gen->ym, target); |
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211 |
380
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212 //printf("Target: %d, YM bufferpos: %d, PSG bufferpos: %d\n", target, gen->ym->buffer_pos, gen->psg->buffer_pos * 2); |
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213 } |
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214 |
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215 uint32_t frame=0; |
268
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216 m68k_context * sync_components(m68k_context * context, uint32_t address) |
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217 { |
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218 //TODO: Handle sync targets smaller than a single frame |
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219 genesis_context * gen = context->system; |
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220 vdp_context * v_context = gen->vdp; |
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221 z80_context * z_context = gen->z80; |
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222 uint32_t mclks = context->current_cycle * MCLKS_PER_68K; |
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223 sync_z80(z_context, mclks); |
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224 if (mclks >= mclks_per_frame) { |
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225 sync_sound(gen, mclks); |
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226 gen->ym->current_cycle -= mclks_per_frame; |
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227 gen->psg->cycles -= mclks_per_frame; |
374 | 228 if (gen->ym->write_cycle != CYCLE_NEVER) { |
229 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; | |
230 } | |
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231 //printf("reached frame end | 68K Cycles: %d, MCLK Cycles: %d\n", context->current_cycle, mclks); |
342
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232 vdp_run_context(v_context, mclks_per_frame); |
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233 |
215
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234 if (!headless) { |
338
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235 break_on_sync |= wait_render_frame(v_context, frame_limit); |
215
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236 } |
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237 frame++; |
342
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238 mclks -= mclks_per_frame; |
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239 vdp_adjust_cycles(v_context, mclks_per_frame); |
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240 io_adjust_cycles(gen->ports, context->current_cycle, mclks_per_frame/MCLKS_PER_68K); |
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241 io_adjust_cycles(gen->ports+1, context->current_cycle, mclks_per_frame/MCLKS_PER_68K); |
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242 io_adjust_cycles(gen->ports+2, context->current_cycle, mclks_per_frame/MCLKS_PER_68K); |
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243 if (busack_cycle != CYCLE_NEVER) { |
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244 if (busack_cycle > mclks_per_frame/MCLKS_PER_68K) { |
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245 busack_cycle -= mclks_per_frame/MCLKS_PER_68K; |
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246 } else { |
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247 busack_cycle = CYCLE_NEVER; |
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248 busack = new_busack; |
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249 } |
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250 } |
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251 context->current_cycle -= mclks_per_frame/MCLKS_PER_68K; |
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252 if (z_context->current_cycle >= mclks_per_frame/MCLKS_PER_Z80) { |
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253 z_context->current_cycle -= mclks_per_frame/MCLKS_PER_Z80; |
260
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254 } else { |
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255 z_context->current_cycle = 0; |
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256 } |
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257 if (mclks) { |
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258 vdp_run_context(v_context, mclks); |
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259 } |
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260 } else { |
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261 //printf("running VDP for %d cycles\n", mclks - v_context->cycles); |
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262 vdp_run_context(v_context, mclks); |
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263 sync_sound(gen, mclks); |
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264 } |
317
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265 if (context->int_ack) { |
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266 vdp_int_ack(v_context, context->int_ack); |
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267 context->int_ack = 0; |
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268 } |
186
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269 adjust_int_cycle(context, v_context); |
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270 if (address) { |
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271 if (break_on_sync) { |
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272 break_on_sync = 0; |
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273 debugger(context, address); |
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274 } |
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275 if (save_state) { |
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276 save_state = 0; |
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277 while (!z_context->pc) |
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278 { |
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279 sync_z80(z_context, z_context->current_cycle * MCLKS_PER_Z80 + MCLKS_PER_Z80); |
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280 } |
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281 save_gst(gen, "savestate.gst", address); |
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282 } |
198
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283 } |
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284 return context; |
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285 } |
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286 |
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287 m68k_context * vdp_port_write(uint32_t vdp_port, m68k_context * context, uint16_t value) |
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288 { |
343
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289 if (vdp_port & 0x2700E0) { |
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290 printf("machine freeze due to write to address %X\n", 0xC00000 | vdp_port); |
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291 exit(1); |
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292 } |
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293 vdp_port &= 0x1F; |
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294 //printf("vdp_port write: %X, value: %X, cycle: %d\n", vdp_port, value, context->current_cycle); |
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295 sync_components(context, 0); |
263
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296 vdp_context * v_context = context->video_context; |
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297 if (vdp_port < 0x10) { |
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298 int blocked; |
345
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299 uint32_t before_cycle = v_context->cycles; |
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300 if (vdp_port < 4) { |
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301 while (vdp_data_port_write(v_context, value) < 0) { |
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302 while(v_context->flags & FLAG_DMA_RUN) { |
342
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303 vdp_run_dma_done(v_context, mclks_per_frame); |
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304 if (v_context->cycles >= mclks_per_frame) { |
215
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305 if (!headless) { |
453
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306 //printf("reached frame end | 68K Cycles: %d, MCLK Cycles: %d\n", context->current_cycle, v_context->cycles); |
338
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307 wait_render_frame(v_context, frame_limit); |
215
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308 } |
342
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309 vdp_adjust_cycles(v_context, mclks_per_frame); |
421
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310 genesis_context * gen = context->system; |
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311 io_adjust_cycles(gen->ports, v_context->cycles/MCLKS_PER_68K, mclks_per_frame/MCLKS_PER_68K); |
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312 io_adjust_cycles(gen->ports+1, v_context->cycles/MCLKS_PER_68K, mclks_per_frame/MCLKS_PER_68K); |
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313 io_adjust_cycles(gen->ports+2, v_context->cycles/MCLKS_PER_68K, mclks_per_frame/MCLKS_PER_68K); |
344
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314 if (busack_cycle != CYCLE_NEVER) { |
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315 if (busack_cycle > mclks_per_frame/MCLKS_PER_68K) { |
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316 busack_cycle -= mclks_per_frame/MCLKS_PER_68K; |
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317 } else { |
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318 busack_cycle = CYCLE_NEVER; |
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319 busack = new_busack; |
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320 } |
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321 } |
88
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322 } |
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323 } |
450
3758bcdae5de
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324 //context->current_cycle = v_context->cycles / MCLKS_PER_68K; |
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325 } |
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326 } else if(vdp_port < 8) { |
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327 blocked = vdp_control_port_write(v_context, value); |
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328 if (blocked) { |
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329 while (blocked) { |
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330 while(v_context->flags & FLAG_DMA_RUN) { |
342
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331 vdp_run_dma_done(v_context, mclks_per_frame); |
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332 if (v_context->cycles >= mclks_per_frame) { |
215
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333 if (!headless) { |
338
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334 wait_render_frame(v_context, frame_limit); |
215
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335 } |
342
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336 vdp_adjust_cycles(v_context, mclks_per_frame); |
421
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337 genesis_context * gen = context->system; |
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338 io_adjust_cycles(gen->ports, v_context->cycles/MCLKS_PER_68K, mclks_per_frame/MCLKS_PER_68K); |
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339 io_adjust_cycles(gen->ports+1, v_context->cycles/MCLKS_PER_68K, mclks_per_frame/MCLKS_PER_68K); |
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340 io_adjust_cycles(gen->ports+2, v_context->cycles/MCLKS_PER_68K, mclks_per_frame/MCLKS_PER_68K); |
344
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341 if (busack_cycle != CYCLE_NEVER) { |
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342 if (busack_cycle > mclks_per_frame/MCLKS_PER_68K) { |
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343 busack_cycle -= mclks_per_frame/MCLKS_PER_68K; |
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344 } else { |
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345 busack_cycle = CYCLE_NEVER; |
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346 busack = new_busack; |
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347 } |
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348 } |
149
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349 } |
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350 } |
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351 if (blocked < 0) { |
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352 blocked = vdp_control_port_write(v_context, value); |
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353 } else { |
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354 blocked = 0; |
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355 } |
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356 } |
88
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357 } else { |
186
02e25abe2dcd
Cleanup VINT code and fix bug in which VINT cycle would be set incorrectly after a VDP control port write
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358 adjust_int_cycle(context, v_context); |
88
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359 } |
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360 } else { |
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361 printf("Illegal write to HV Counter port %X\n", vdp_port); |
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362 exit(1); |
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363 } |
345
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364 if (v_context->cycles != before_cycle) { |
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365 //printf("68K paused for %d (%d) cycles at cycle %d (%d) for write\n", v_context->cycles / MCLKS_PER_68K - context->current_cycle, v_context->cycles - before_cycle, context->current_cycle, before_cycle); |
345
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366 context->current_cycle = v_context->cycles / MCLKS_PER_68K; |
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367 } |
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368 } else if (vdp_port < 0x18) { |
354
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369 genesis_context * gen = context->system; |
380
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370 sync_sound(gen, context->current_cycle * MCLKS_PER_68K); |
354
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371 psg_write(gen->psg, value); |
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372 } else { |
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373 //TODO: Implement undocumented test register(s) |
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374 } |
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375 return context; |
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376 } |
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377 |
343
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378 m68k_context * vdp_port_write_b(uint32_t vdp_port, m68k_context * context, uint8_t value) |
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379 { |
357
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380 return vdp_port_write(vdp_port, context, vdp_port < 0x10 ? value | value << 8 : ((vdp_port & 1) ? value : 0)); |
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381 } |
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382 |
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383 z80_context * z80_vdp_port_write(uint16_t vdp_port, z80_context * context, uint8_t value) |
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384 { |
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385 genesis_context * gen = context->system; |
358
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386 if (vdp_port & 0xE0) { |
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387 printf("machine freeze due to write to Z80 address %X\n", 0x7F00 | vdp_port); |
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388 exit(1); |
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389 } |
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390 if (vdp_port < 0x10) { |
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391 //These probably won't currently interact well with the 68K accessing the VDP |
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392 vdp_run_context(gen->vdp, context->current_cycle * MCLKS_PER_Z80); |
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393 if (vdp_port < 4) { |
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394 vdp_data_port_write(gen->vdp, value << 8 | value); |
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395 } else if (vdp_port < 8) { |
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396 vdp_control_port_write(gen->vdp, value << 8 | value); |
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397 } else { |
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398 printf("Illegal write to HV Counter port %X\n", vdp_port); |
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399 exit(1); |
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400 } |
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401 } else if (vdp_port < 0x18) { |
380
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402 sync_sound(gen, context->current_cycle * MCLKS_PER_Z80); |
358
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403 psg_write(gen->psg, value); |
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404 } else { |
470
541c1ae8abf3
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|
405 vdp_test_port_write(gen->vdp, value); |
358
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|
406 } |
357
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|
407 return context; |
343
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|
408 } |
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|
409 |
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|
410 uint16_t vdp_port_read(uint32_t vdp_port, m68k_context * context) |
88
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|
411 { |
343
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412 if (vdp_port & 0x2700E0) { |
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413 printf("machine freeze due to read from address %X\n", 0xC00000 | vdp_port); |
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|
414 exit(1); |
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diff
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|
415 } |
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|
416 vdp_port &= 0x1F; |
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diff
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|
417 uint16_t value; |
198
209a37eed3e7
Add support for breaking into the debugger while game is running
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197
diff
changeset
|
418 sync_components(context, 0); |
263
2989ed7b8608
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
diff
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|
419 vdp_context * v_context = context->video_context; |
470
541c1ae8abf3
Properly delay 68K on VDP reads. Dummy VDP test port implementation. Initial stab at handling undefined bits of VSRAM and CRAM.
Mike Pavone <pavone@retrodev.com>
parents:
469
diff
changeset
|
420 uint32_t before_cycle = v_context->cycles; |
88
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|
421 if (vdp_port < 0x10) { |
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diff
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|
422 if (vdp_port < 4) { |
343
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|
423 value = vdp_data_port_read(v_context); |
88
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|
424 } else if(vdp_port < 8) { |
343
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diff
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|
425 value = vdp_control_port_read(v_context); |
88
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diff
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|
426 } else { |
343
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|
427 value = vdp_hv_counter_read(v_context); |
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|
428 //printf("HV Counter: %X at cycle %d\n", value, v_context->cycles); |
88
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diff
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|
429 } |
470
541c1ae8abf3
Properly delay 68K on VDP reads. Dummy VDP test port implementation. Initial stab at handling undefined bits of VSRAM and CRAM.
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469
diff
changeset
|
430 } else if (vdp_port < 0x18){ |
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469
diff
changeset
|
431 printf("Illegal read from PSG port %X\n", vdp_port); |
541c1ae8abf3
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469
diff
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|
432 exit(1); |
88
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diff
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|
433 } else { |
470
541c1ae8abf3
Properly delay 68K on VDP reads. Dummy VDP test port implementation. Initial stab at handling undefined bits of VSRAM and CRAM.
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469
diff
changeset
|
434 value = vdp_test_port_read(v_context); |
541c1ae8abf3
Properly delay 68K on VDP reads. Dummy VDP test port implementation. Initial stab at handling undefined bits of VSRAM and CRAM.
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parents:
469
diff
changeset
|
435 } |
541c1ae8abf3
Properly delay 68K on VDP reads. Dummy VDP test port implementation. Initial stab at handling undefined bits of VSRAM and CRAM.
Mike Pavone <pavone@retrodev.com>
parents:
469
diff
changeset
|
436 if (v_context->cycles != before_cycle) { |
471
f065769836e8
Implement FIFO as a ring buffer so the behavior of reads from invalid CRAM and VSRAM bits can be implemented properly
Mike Pavone <pavone@retrodev.com>
parents:
470
diff
changeset
|
437 //printf("68K paused for %d (%d) cycles at cycle %d (%d) for read\n", v_context->cycles / MCLKS_PER_68K - context->current_cycle, v_context->cycles - before_cycle, context->current_cycle, before_cycle); |
470
541c1ae8abf3
Properly delay 68K on VDP reads. Dummy VDP test port implementation. Initial stab at handling undefined bits of VSRAM and CRAM.
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469
diff
changeset
|
438 context->current_cycle = v_context->cycles / MCLKS_PER_68K; |
88
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diff
changeset
|
439 } |
343
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342
diff
changeset
|
440 return value; |
467bfa17004a
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342
diff
changeset
|
441 } |
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342
diff
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|
442 |
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|
443 uint8_t vdp_port_read_b(uint32_t vdp_port, m68k_context * context) |
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|
444 { |
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|
445 uint16_t value = vdp_port_read(vdp_port, context); |
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|
446 if (vdp_port & 1) { |
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|
447 return value; |
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342
diff
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|
448 } else { |
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|
449 return value >> 8; |
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|
450 } |
88
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changeset
|
451 } |
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diff
changeset
|
452 |
279
6be6056735a9
Fix native address lookup in bannked memory area
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276
diff
changeset
|
453 uint32_t zram_counter = 0; |
289
1cc0850ab6bc
Hopefully more correct implementation of the Z80 busack status
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288
diff
changeset
|
454 #define Z80_ACK_DELAY 3 |
336
87b65e5ce1ab
Fix a stupid bug in z80 busreq acknowledge delay code and make some small improvements there too
Mike Pavone <pavone@retrodev.com>
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335
diff
changeset
|
455 #define Z80_BUSY_DELAY 1//TODO: Find the actual value for this |
289
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|
456 #define Z80_REQ_BUSY 1 |
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|
457 #define Z80_REQ_ACK 0 |
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|
458 #define Z80_RES_BUSACK reset |
279
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276
diff
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|
459 |
88
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diff
changeset
|
460 m68k_context * io_write(uint32_t location, m68k_context * context, uint8_t value) |
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parents:
diff
changeset
|
461 { |
288
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Add a YM2612 stub implementation with just timers and status registers so that games that depend on it can run.
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parents:
280
diff
changeset
|
462 genesis_context * gen = context->system; |
153
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149
diff
changeset
|
463 if (location < 0x10000) { |
336
87b65e5ce1ab
Fix a stupid bug in z80 busreq acknowledge delay code and make some small improvements there too
Mike Pavone <pavone@retrodev.com>
parents:
335
diff
changeset
|
464 if (busack_cycle <= context->current_cycle) { |
153
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149
diff
changeset
|
465 busack = new_busack; |
42c031184e8a
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149
diff
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|
466 busack_cycle = CYCLE_NEVER; |
42c031184e8a
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149
diff
changeset
|
467 } |
42c031184e8a
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parents:
149
diff
changeset
|
468 if (!(busack || reset)) { |
42c031184e8a
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parents:
149
diff
changeset
|
469 location &= 0x7FFF; |
42c031184e8a
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parents:
149
diff
changeset
|
470 if (location < 0x4000) { |
42c031184e8a
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149
diff
changeset
|
471 z80_ram[location & 0x1FFF] = value; |
288
a8ee7934a1f8
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Mike Pavone <pavone@retrodev.com>
parents:
280
diff
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|
472 z80_handle_code_write(location & 0x1FFF, gen->z80); |
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
|
473 } 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
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|
474 sync_sound(gen, context->current_cycle * MCLKS_PER_68K); |
288
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Add a YM2612 stub implementation with just timers and status registers so that games that depend on it can run.
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parents:
280
diff
changeset
|
475 if (location & 1) { |
a8ee7934a1f8
Add a YM2612 stub implementation with just timers and status registers so that games that depend on it can run.
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parents:
280
diff
changeset
|
476 ym_data_write(gen->ym, value); |
a8ee7934a1f8
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parents:
280
diff
changeset
|
477 } else if(location & 2) { |
a8ee7934a1f8
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parents:
280
diff
changeset
|
478 ym_address_write_part2(gen->ym, value); |
a8ee7934a1f8
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parents:
280
diff
changeset
|
479 } else { |
a8ee7934a1f8
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280
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|
480 ym_address_write_part1(gen->ym, value); |
a8ee7934a1f8
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parents:
280
diff
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|
481 } |
405
042c4ba4a838
Implement writes from 68K to Z80 bank register and make reads from port c control register return 0 again
Mike Pavone <pavone@retrodev.com>
parents:
404
diff
changeset
|
482 } else if (location == 0x6000) { |
042c4ba4a838
Implement writes from 68K to Z80 bank register and make reads from port c control register return 0 again
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parents:
404
diff
changeset
|
483 gen->z80->bank_reg = (gen->z80->bank_reg >> 1 | value << 8) & 0x1FF; |
042c4ba4a838
Implement writes from 68K to Z80 bank register and make reads from port c control register return 0 again
Mike Pavone <pavone@retrodev.com>
parents:
404
diff
changeset
|
484 if (gen->z80->bank_reg < 0x80) { |
042c4ba4a838
Implement writes from 68K to Z80 bank register and make reads from port c control register return 0 again
Mike Pavone <pavone@retrodev.com>
parents:
404
diff
changeset
|
485 gen->z80->mem_pointers[1] = (gen->z80->bank_reg << 15) + ((char *)gen->z80->mem_pointers[2]); |
042c4ba4a838
Implement writes from 68K to Z80 bank register and make reads from port c control register return 0 again
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parents:
404
diff
changeset
|
486 } else { |
042c4ba4a838
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parents:
404
diff
changeset
|
487 gen->z80->mem_pointers[1] = NULL; |
042c4ba4a838
Implement writes from 68K to Z80 bank register and make reads from port c control register return 0 again
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parents:
404
diff
changeset
|
488 } |
395
0b5f93358a93
Add debugger command for saving Z80 RAM to a file
Mike Pavone <pavone@retrodev.com>
parents:
392
diff
changeset
|
489 } else { |
0b5f93358a93
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392
diff
changeset
|
490 printf("68K write to unhandled Z80 address %X\n", location); |
0b5f93358a93
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392
diff
changeset
|
491 exit(1); |
153
42c031184e8a
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|
492 } |
88
c339559f1d4f
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parents:
diff
changeset
|
493 } |
c339559f1d4f
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changeset
|
494 } else { |
153
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diff
changeset
|
495 location &= 0x1FFF; |
42c031184e8a
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149
diff
changeset
|
496 if (location < 0x100) { |
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149
diff
changeset
|
497 switch(location/2) |
42c031184e8a
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diff
changeset
|
498 { |
42c031184e8a
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diff
changeset
|
499 case 0x1: |
421
d0cacb4ade0b
Move IO code to a separate file and do a tiny bit of refactoring
Mike Pavone <pavone@retrodev.com>
parents:
418
diff
changeset
|
500 io_data_write(gen->ports, value, context->current_cycle); |
153
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149
diff
changeset
|
501 break; |
42c031184e8a
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149
diff
changeset
|
502 case 0x2: |
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
|
503 io_data_write(gen->ports+1, value, context->current_cycle); |
153
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149
diff
changeset
|
504 break; |
421
d0cacb4ade0b
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Mike Pavone <pavone@retrodev.com>
parents:
418
diff
changeset
|
505 case 0x3: |
d0cacb4ade0b
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Mike Pavone <pavone@retrodev.com>
parents:
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diff
changeset
|
506 io_data_write(gen->ports+2, value, context->current_cycle); |
153
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diff
changeset
|
507 break; |
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149
diff
changeset
|
508 case 0x4: |
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
|
509 gen->ports[0].control = value; |
153
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149
diff
changeset
|
510 break; |
42c031184e8a
Implement access to Z80 RAM
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149
diff
changeset
|
511 case 0x5: |
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
|
512 gen->ports[1].control = value; |
d0cacb4ade0b
Move IO code to a separate file and do a tiny bit of refactoring
Mike Pavone <pavone@retrodev.com>
parents:
418
diff
changeset
|
513 break; |
d0cacb4ade0b
Move IO code to a separate file and do a tiny bit of refactoring
Mike Pavone <pavone@retrodev.com>
parents:
418
diff
changeset
|
514 case 0x6: |
d0cacb4ade0b
Move IO code to a separate file and do a tiny bit of refactoring
Mike Pavone <pavone@retrodev.com>
parents:
418
diff
changeset
|
515 gen->ports[2].control = value; |
153
42c031184e8a
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149
diff
changeset
|
516 break; |
88
c339559f1d4f
Forgot to add blastem main file earlier
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parents:
diff
changeset
|
517 } |
153
42c031184e8a
Implement access to Z80 RAM
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parents:
149
diff
changeset
|
518 } else { |
42c031184e8a
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parents:
149
diff
changeset
|
519 if (location == 0x1100) { |
336
87b65e5ce1ab
Fix a stupid bug in z80 busreq acknowledge delay code and make some small improvements there too
Mike Pavone <pavone@retrodev.com>
parents:
335
diff
changeset
|
520 if (busack_cycle <= context->current_cycle) { |
153
42c031184e8a
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parents:
149
diff
changeset
|
521 busack = new_busack; |
42c031184e8a
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149
diff
changeset
|
522 busack_cycle = CYCLE_NEVER; |
88
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
523 } |
153
42c031184e8a
Implement access to Z80 RAM
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parents:
149
diff
changeset
|
524 if (value & 1) { |
271
969ee17471c5
Protect debug prints for busreq/reset regs with appropriate macros
Mike Pavone <pavone@retrodev.com>
parents:
268
diff
changeset
|
525 dputs("bus requesting Z80"); |
447
e730fc040169
Fix performance regression from stop instruction work
Mike Pavone <pavone@retrodev.com>
parents:
446
diff
changeset
|
526 |
336
87b65e5ce1ab
Fix a stupid bug in z80 busreq acknowledge delay code and make some small improvements there too
Mike Pavone <pavone@retrodev.com>
parents:
335
diff
changeset
|
527 if(!reset && !busreq) { |
482
4b24260125f3
Theoretically more correct timing of Z80 bus request
Mike Pavone <pavone@retrodev.com>
parents:
471
diff
changeset
|
528 sync_z80(gen->z80, context->current_cycle * MCLKS_PER_68K + Z80_ACK_DELAY*MCLKS_PER_Z80); |
4b24260125f3
Theoretically more correct timing of Z80 bus request
Mike Pavone <pavone@retrodev.com>
parents:
471
diff
changeset
|
529 busack_cycle = (gen->z80->current_cycle * MCLKS_PER_Z80) / MCLKS_PER_68K;//context->current_cycle + Z80_ACK_DELAY; |
289
1cc0850ab6bc
Hopefully more correct implementation of the Z80 busack status
Mike Pavone <pavone@retrodev.com>
parents:
288
diff
changeset
|
530 new_busack = Z80_REQ_ACK; |
153
42c031184e8a
Implement access to Z80 RAM
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parents:
149
diff
changeset
|
531 } |
364
62177cc39049
Incredibly broken YM2612 support plus a fix to Z80 bus request
Mike Pavone <pavone@retrodev.com>
parents:
362
diff
changeset
|
532 busreq = 1; |
153
42c031184e8a
Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents:
149
diff
changeset
|
533 } else { |
482
4b24260125f3
Theoretically more correct timing of Z80 bus request
Mike Pavone <pavone@retrodev.com>
parents:
471
diff
changeset
|
534 sync_z80(gen->z80, context->current_cycle * MCLKS_PER_68K); |
260
625f8e4d5fd2
Initial stab at integartiong Z80 core
Mike Pavone <pavone@retrodev.com>
parents:
215
diff
changeset
|
535 if (busreq) { |
271
969ee17471c5
Protect debug prints for busreq/reset regs with appropriate macros
Mike Pavone <pavone@retrodev.com>
parents:
268
diff
changeset
|
536 dputs("releasing z80 bus"); |
280 | 537 #ifdef DO_DEBUG_PRINT |
279
6be6056735a9
Fix native address lookup in bannked memory area
Mike Pavone <pavone@retrodev.com>
parents:
276
diff
changeset
|
538 char fname[20]; |
6be6056735a9
Fix native address lookup in bannked memory area
Mike Pavone <pavone@retrodev.com>
parents:
276
diff
changeset
|
539 sprintf(fname, "zram-%d", zram_counter++); |
6be6056735a9
Fix native address lookup in bannked memory area
Mike Pavone <pavone@retrodev.com>
parents:
276
diff
changeset
|
540 FILE * f = fopen(fname, "wb"); |
6be6056735a9
Fix native address lookup in bannked memory area
Mike Pavone <pavone@retrodev.com>
parents:
276
diff
changeset
|
541 fwrite(z80_ram, 1, sizeof(z80_ram), f); |
6be6056735a9
Fix native address lookup in bannked memory area
Mike Pavone <pavone@retrodev.com>
parents:
276
diff
changeset
|
542 fclose(f); |
280 | 543 #endif |
336
87b65e5ce1ab
Fix a stupid bug in z80 busreq acknowledge delay code and make some small improvements there too
Mike Pavone <pavone@retrodev.com>
parents:
335
diff
changeset
|
544 busack_cycle = ((gen->z80->current_cycle + Z80_BUSY_DELAY) * MCLKS_PER_Z80) / MCLKS_PER_68K; |
87b65e5ce1ab
Fix a stupid bug in z80 busreq acknowledge delay code and make some small improvements there too
Mike Pavone <pavone@retrodev.com>
parents:
335
diff
changeset
|
545 new_busack = Z80_REQ_BUSY; |
87b65e5ce1ab
Fix a stupid bug in z80 busreq acknowledge delay code and make some small improvements there too
Mike Pavone <pavone@retrodev.com>
parents:
335
diff
changeset
|
546 busreq = 0; |
260
625f8e4d5fd2
Initial stab at integartiong Z80 core
Mike Pavone <pavone@retrodev.com>
parents:
215
diff
changeset
|
547 } |
289
1cc0850ab6bc
Hopefully more correct implementation of the Z80 busack status
Mike Pavone <pavone@retrodev.com>
parents:
288
diff
changeset
|
548 //busack_cycle = CYCLE_NEVER; |
1cc0850ab6bc
Hopefully more correct implementation of the Z80 busack status
Mike Pavone <pavone@retrodev.com>
parents:
288
diff
changeset
|
549 //busack = Z80_REQ_BUSY; |
447
e730fc040169
Fix performance regression from stop instruction work
Mike Pavone <pavone@retrodev.com>
parents:
446
diff
changeset
|
550 |
88
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
551 } |
153
42c031184e8a
Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents:
149
diff
changeset
|
552 } else if (location == 0x1200) { |
288
a8ee7934a1f8
Add a YM2612 stub implementation with just timers and status registers so that games that depend on it can run.
Mike Pavone <pavone@retrodev.com>
parents:
280
diff
changeset
|
553 sync_z80(gen->z80, context->current_cycle * MCLKS_PER_68K); |
153
42c031184e8a
Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents:
149
diff
changeset
|
554 if (value & 1) { |
42c031184e8a
Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents:
149
diff
changeset
|
555 if (reset && busreq) { |
42c031184e8a
Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents:
149
diff
changeset
|
556 new_busack = 0; |
289
1cc0850ab6bc
Hopefully more correct implementation of the Z80 busack status
Mike Pavone <pavone@retrodev.com>
parents:
288
diff
changeset
|
557 busack_cycle = ((gen->z80->current_cycle + Z80_ACK_DELAY) * MCLKS_PER_Z80) / MCLKS_PER_68K;//context->current_cycle + Z80_ACK_DELAY; |
153
42c031184e8a
Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents:
149
diff
changeset
|
558 } |
260
625f8e4d5fd2
Initial stab at integartiong Z80 core
Mike Pavone <pavone@retrodev.com>
parents:
215
diff
changeset
|
559 //TODO: Deal with the scenario in which reset is not asserted long enough |
625f8e4d5fd2
Initial stab at integartiong Z80 core
Mike Pavone <pavone@retrodev.com>
parents:
215
diff
changeset
|
560 if (reset) { |
625f8e4d5fd2
Initial stab at integartiong Z80 core
Mike Pavone <pavone@retrodev.com>
parents:
215
diff
changeset
|
561 need_reset = 1; |
625f8e4d5fd2
Initial stab at integartiong Z80 core
Mike Pavone <pavone@retrodev.com>
parents:
215
diff
changeset
|
562 //TODO: Add necessary delay between release of reset and start of execution |
288
a8ee7934a1f8
Add a YM2612 stub implementation with just timers and status registers so that games that depend on it can run.
Mike Pavone <pavone@retrodev.com>
parents:
280
diff
changeset
|
563 gen->z80->current_cycle = (context->current_cycle * MCLKS_PER_68K) / MCLKS_PER_Z80; |
260
625f8e4d5fd2
Initial stab at integartiong Z80 core
Mike Pavone <pavone@retrodev.com>
parents:
215
diff
changeset
|
564 } |
153
42c031184e8a
Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents:
149
diff
changeset
|
565 reset = 0; |
42c031184e8a
Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents:
149
diff
changeset
|
566 } else { |
42c031184e8a
Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents:
149
diff
changeset
|
567 reset = 1; |
42c031184e8a
Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents:
149
diff
changeset
|
568 } |
88
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
569 } |
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
570 } |
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
571 } |
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
572 return context; |
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
573 } |
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
574 |
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575 m68k_context * io_write_w(uint32_t location, m68k_context * context, uint16_t value) |
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576 { |
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577 if (location < 0x10000 || (location & 0x1FFF) >= 0x100) { |
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578 return io_write(location, context, value >> 8); |
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579 } else { |
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580 return io_write(location, context, value); |
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581 } |
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582 } |
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583 |
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584 #define USA 0x80 |
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585 #define JAP 0x00 |
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586 #define EUR 0xC0 |
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587 #define NO_DISK 0x20 |
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588 uint8_t version_reg = NO_DISK | USA; |
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589 |
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590 uint8_t io_read(uint32_t location, m68k_context * context) |
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591 { |
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592 uint8_t value; |
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593 genesis_context *gen = context->system; |
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594 if (location < 0x10000) { |
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595 if (busack_cycle <= context->current_cycle) { |
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596 busack = new_busack; |
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597 busack_cycle = CYCLE_NEVER; |
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598 } |
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599 if (!(busack==Z80_REQ_BUSY || reset)) { |
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600 location &= 0x7FFF; |
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601 if (location < 0x4000) { |
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602 value = z80_ram[location & 0x1FFF]; |
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603 } else if (location < 0x6000) { |
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604 sync_sound(gen, context->current_cycle * MCLKS_PER_68K); |
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605 value = ym_read_status(gen->ym); |
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606 } else { |
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607 value = 0xFF; |
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608 } |
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609 } else { |
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610 value = 0xFF; |
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611 } |
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612 } else { |
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613 location &= 0x1FFF; |
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614 if (location < 0x100) { |
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615 switch(location/2) |
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616 { |
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617 case 0x0: |
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618 //version bits should be 0 for now since we're not emulating TMSS |
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619 value = version_reg; |
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620 break; |
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621 case 0x1: |
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622 value = io_data_read(gen->ports, context->current_cycle); |
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623 break; |
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624 case 0x2: |
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625 value = io_data_read(gen->ports+1, context->current_cycle); |
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626 break; |
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627 case 0x3: |
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628 value = io_data_read(gen->ports+2, context->current_cycle); |
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629 break; |
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630 case 0x4: |
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631 value = gen->ports[0].control; |
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632 break; |
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633 case 0x5: |
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634 value = gen->ports[1].control; |
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635 break; |
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636 case 0x6: |
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637 value = gen->ports[2].control; |
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638 break; |
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639 default: |
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640 value = 0xFF; |
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641 } |
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642 } else { |
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643 if (location == 0x1100) { |
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644 if (busack_cycle <= context->current_cycle) { |
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645 busack = new_busack; |
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646 busack_cycle = CYCLE_NEVER; |
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647 } |
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648 value = Z80_RES_BUSACK || busack; |
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649 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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650 } else if (location == 0x1200) { |
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651 value = !reset; |
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652 } else { |
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653 value = 0xFF; |
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654 printf("Byte read of unknown IO location: %X\n", location); |
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655 } |
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656 } |
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657 } |
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658 return value; |
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659 } |
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660 |
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661 uint16_t io_read_w(uint32_t location, m68k_context * context) |
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662 { |
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663 uint16_t value = io_read(location, context); |
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664 if (location < 0x10000 || (location & 0x1FFF) < 0x100) { |
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665 value = value | (value << 8); |
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666 } else { |
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|
667 value <<= 8; |
88
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668 } |
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669 return value; |
88
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670 } |
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671 |
290
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672 z80_context * z80_write_ym(uint16_t location, z80_context * context, uint8_t value) |
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673 { |
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674 genesis_context * gen = context->system; |
380
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675 sync_sound(gen, context->current_cycle * MCLKS_PER_Z80); |
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676 if (location & 1) { |
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677 ym_data_write(gen->ym, value); |
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678 } else if (location & 2) { |
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679 ym_address_write_part2(gen->ym, value); |
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680 } else { |
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681 ym_address_write_part1(gen->ym, value); |
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682 } |
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683 return context; |
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684 } |
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685 |
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686 uint8_t z80_read_ym(uint16_t location, z80_context * context) |
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687 { |
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688 genesis_context * gen = context->system; |
380
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689 sync_sound(gen, context->current_cycle * MCLKS_PER_Z80); |
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|
690 return ym_read_status(gen->ym); |
171f97e70d85
Implement writes from Z80 to YM-2612
Mike Pavone <pavone@retrodev.com>
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289
diff
changeset
|
691 } |
171f97e70d85
Implement writes from Z80 to YM-2612
Mike Pavone <pavone@retrodev.com>
parents:
289
diff
changeset
|
692 |
351
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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parents:
346
diff
changeset
|
693 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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346
diff
changeset
|
694 { |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
changeset
|
695 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>
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346
diff
changeset
|
696 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
|
697 switch(gen->save_flags) |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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parents:
346
diff
changeset
|
698 { |
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 case 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
|
700 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.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
701 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
|
702 return gen->save_ram[address >> 1] << 8 | 0xFF; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
703 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
|
704 return gen->save_ram[address >> 1] | 0xFF00; |
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 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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346
diff
changeset
|
707 } |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
708 |
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 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.
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 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
|
712 address &= gen->save_ram_mask; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
713 switch(gen->save_flags) |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
714 { |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
715 case RAM_FLAG_BOTH: |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
716 return gen->save_ram[address]; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
717 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
|
718 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
|
719 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
|
720 } 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
|
721 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
|
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 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
|
724 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
|
725 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
|
726 } 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
|
727 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
|
728 } |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
729 } |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
730 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
|
731 } |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
732 |
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 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
|
734 { |
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 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
|
736 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
|
737 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
|
738 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
|
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 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
|
741 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
|
742 gen->save_ram[address+1] = value; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
743 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
|
744 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
|
745 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
|
746 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
|
747 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
|
748 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
|
749 break; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
750 } |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
751 } |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
752 return context; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
753 } |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
754 |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
755 m68k_context * write_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
|
756 { |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
757 genesis_context * gen = context->system; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
758 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
|
759 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
|
760 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
|
761 { |
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 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
|
763 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
|
764 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
|
765 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
|
766 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
|
767 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
|
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 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
|
770 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
|
771 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
|
772 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
|
773 } |
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 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
|
775 } |
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 } |
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 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
|
778 } |
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 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
|
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 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
|
783 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
|
784 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
|
785 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
|
786 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
|
787 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
|
788 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
|
789 } 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
|
790 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
|
791 } |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
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|
792 } |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
changeset
|
793 return context; |
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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|
794 } |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
changeset
|
795 |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
changeset
|
796 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
|
797 { |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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parents:
346
diff
changeset
|
798 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
|
799 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
|
800 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
|
801 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
|
802 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
|
803 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
|
804 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
|
805 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
|
806 } 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
|
807 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
|
808 } |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
809 } |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
810 } |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
811 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
|
812 } |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
813 |
184
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
814 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
|
815 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
|
816 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
|
817 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
|
818 } 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
|
819 |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
820 bp_def * breakpoints = NULL; |
366
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
821 bp_def * zbreakpoints = 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
|
822 uint32_t bp_index = 0; |
366
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
823 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
|
824 |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
825 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
|
826 { |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
827 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
|
828 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
|
829 break; |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
830 } |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
831 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
|
832 } |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
833 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
|
834 } |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
835 |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
836 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
|
837 { |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
838 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
|
839 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
|
840 break; |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
841 } |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
842 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
|
843 } |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
844 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
|
845 } |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
846 |
372
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
847 typedef struct disp_def { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
848 struct disp_def * next; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
849 char * param; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
850 uint32_t index; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
851 char format_char; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
852 } disp_def; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
853 |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
854 disp_def * displays = NULL; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
855 disp_def * zdisplays = NULL; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
856 uint32_t disp_index = 0; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
857 uint32_t zdisp_index = 0; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
858 |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
859 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
|
860 { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
861 disp_def * ndisp = malloc(sizeof(*ndisp)); |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
862 ndisp->format_char = format_char; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
863 ndisp->param = strdup(param); |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
864 ndisp->next = *head; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
865 ndisp->index = *index++; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
866 *head = ndisp; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
867 } |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
868 |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
869 void remove_display(disp_def ** head, uint32_t index) |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
870 { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
871 while (*head) { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
872 if ((*head)->index == index) { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
873 disp_def * del_disp = *head; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
874 *head = del_disp->next; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
875 free(del_disp->param); |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
876 free(del_disp); |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
877 } else { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
878 head = &(*head)->next; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
879 } |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
880 } |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
881 } |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
882 |
184
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
883 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
|
884 { |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
885 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
|
886 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
|
887 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
|
888 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
|
889 } |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
890 } |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
891 } |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
892 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
|
893 } |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
894 |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
895 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
|
896 { |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
897 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
|
898 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
|
899 *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
|
900 return; |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
901 } |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
902 } |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
903 } |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
904 |
372
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
905 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
|
906 { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
907 uint32_t value; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
908 char format[8]; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
909 strcpy(format, "%s: %d\n"); |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
910 switch (format_char) |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
911 { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
912 case 'x': |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
913 case 'X': |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
914 case 'd': |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
915 case 'c': |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
916 format[5] = format_char; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
917 break; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
918 case '\0': |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
919 break; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
920 default: |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
921 fprintf(stderr, "Unrecognized format character: %c\n", format_char); |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
922 } |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
923 switch (param[0]) |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
924 { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
925 case 'a': |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
926 if (param[1] == 'f') { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
927 if(param[2] == '\'') { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
928 value = context->alt_regs[Z80_A] << 8; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
929 value |= context->alt_flags[ZF_S] << 7; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
930 value |= context->alt_flags[ZF_Z] << 6; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
931 value |= context->alt_flags[ZF_H] << 4; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
932 value |= context->alt_flags[ZF_PV] << 2; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
933 value |= context->alt_flags[ZF_N] << 1; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
934 value |= context->alt_flags[ZF_C]; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
935 } else { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
936 value = context->regs[Z80_A] << 8; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
937 value |= context->flags[ZF_S] << 7; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
938 value |= context->flags[ZF_Z] << 6; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
939 value |= context->flags[ZF_H] << 4; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
940 value |= context->flags[ZF_PV] << 2; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
941 value |= context->flags[ZF_N] << 1; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
942 value |= context->flags[ZF_C]; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
943 } |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
944 } else if(param[1] == '\'') { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
945 value = context->alt_regs[Z80_A]; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
946 } else { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
947 value = context->regs[Z80_A]; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
948 } |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
949 break; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
950 case 'b': |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
951 if (param[1] == 'c') { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
952 if(param[2] == '\'') { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
953 value = context->alt_regs[Z80_B] << 8; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
954 value |= context->alt_regs[Z80_C]; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
955 } else { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
956 value = context->regs[Z80_B] << 8; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
957 value |= context->regs[Z80_C]; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
958 } |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
959 } else if(param[1] == '\'') { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
960 value = context->alt_regs[Z80_B]; |
392
1b80b90399da
Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
380
diff
changeset
|
961 } else if(param[1] == 'a') { |
1b80b90399da
Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
380
diff
changeset
|
962 value = context->bank_reg << 15; |
372
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
963 } else { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
964 value = context->regs[Z80_B]; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
965 } |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
966 break; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
967 case 'c': |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
968 if(param[1] == '\'') { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
969 value = context->alt_regs[Z80_C]; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
970 } else if(param[1] == 'y') { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
971 value = context->current_cycle; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
972 } else { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
973 value = context->regs[Z80_C]; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
974 } |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
975 break; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
976 case 'd': |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
977 if (param[1] == 'e') { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
978 if(param[2] == '\'') { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
979 value = context->alt_regs[Z80_D] << 8; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
980 value |= context->alt_regs[Z80_E]; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
981 } else { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
982 value = context->regs[Z80_D] << 8; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
983 value |= context->regs[Z80_E]; |
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 } else if(param[1] == '\'') { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
986 value = context->alt_regs[Z80_D]; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
987 } else { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
988 value = context->regs[Z80_D]; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
989 } |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
990 break; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
991 case 'e': |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
992 if(param[1] == '\'') { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
993 value = context->alt_regs[Z80_E]; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
994 } else { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
995 value = context->regs[Z80_E]; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
996 } |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
997 break; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
998 case 'f': |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
999 if(param[2] == '\'') { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1000 value = context->alt_flags[ZF_S] << 7; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1001 value |= context->alt_flags[ZF_Z] << 6; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1002 value |= context->alt_flags[ZF_H] << 4; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1003 value |= context->alt_flags[ZF_PV] << 2; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1004 value |= context->alt_flags[ZF_N] << 1; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1005 value |= context->alt_flags[ZF_C]; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1006 } else { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1007 value = context->flags[ZF_S] << 7; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1008 value |= context->flags[ZF_Z] << 6; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1009 value |= context->flags[ZF_H] << 4; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1010 value |= context->flags[ZF_PV] << 2; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1011 value |= context->flags[ZF_N] << 1; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1012 value |= context->flags[ZF_C]; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1013 } |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1014 break; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1015 case 'h': |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1016 if (param[1] == 'l') { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1017 if(param[2] == '\'') { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1018 value = context->alt_regs[Z80_H] << 8; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1019 value |= context->alt_regs[Z80_L]; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1020 } else { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1021 value = context->regs[Z80_H] << 8; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1022 value |= context->regs[Z80_L]; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1023 } |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1024 } else if(param[1] == '\'') { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1025 value = context->alt_regs[Z80_H]; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1026 } else { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1027 value = context->regs[Z80_H]; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1028 } |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1029 break; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1030 case 'l': |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1031 if(param[1] == '\'') { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1032 value = context->alt_regs[Z80_L]; |
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->regs[Z80_L]; |
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 'i': |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1038 if(param[1] == 'x') { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1039 if (param[2] == 'h') { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1040 value = context->regs[Z80_IXH]; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1041 } else if(param[2] == 'l') { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1042 value = context->regs[Z80_IXL]; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1043 } else { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1044 value = context->regs[Z80_IXH] << 8; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1045 value |= context->regs[Z80_IXL]; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1046 } |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1047 } else if(param[1] == 'y') { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1048 if (param[2] == 'h') { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1049 value = context->regs[Z80_IYH]; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1050 } else if(param[2] == 'l') { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1051 value = context->regs[Z80_IYL]; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1052 } else { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1053 value = context->regs[Z80_IYH] << 8; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1054 value |= context->regs[Z80_IYL]; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1055 } |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1056 } else if(param[1] == 'n') { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1057 value = context->int_cycle; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1058 } 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
|
1059 value = context->iff1; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1060 } 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
|
1061 value = context->iff2; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1062 } else { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1063 value = context->im; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1064 } |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1065 break; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1066 case 's': |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1067 if (param[1] == 'p') { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1068 value = context->sp; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1069 } |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1070 break; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1071 case '0': |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1072 if (param[1] == 'x') { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1073 uint16_t p_addr = strtol(param+2, NULL, 16); |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1074 if (p_addr < 0x4000) { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1075 value = z80_ram[p_addr & 0x1FFF]; |
392
1b80b90399da
Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
380
diff
changeset
|
1076 } else if(p_addr >= 0x8000) { |
1b80b90399da
Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
380
diff
changeset
|
1077 uint32_t v_addr = context->bank_reg << 15; |
1b80b90399da
Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
380
diff
changeset
|
1078 v_addr += p_addr & 0x7FFF; |
1b80b90399da
Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
380
diff
changeset
|
1079 if (v_addr < 0x400000) { |
1b80b90399da
Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
380
diff
changeset
|
1080 value = cart[v_addr/2]; |
1b80b90399da
Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
380
diff
changeset
|
1081 } else if(v_addr > 0xE00000) { |
1b80b90399da
Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
380
diff
changeset
|
1082 value = ram[(v_addr & 0xFFFF)/2]; |
1b80b90399da
Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
380
diff
changeset
|
1083 } |
1b80b90399da
Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
380
diff
changeset
|
1084 if (v_addr & 1) { |
1b80b90399da
Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
380
diff
changeset
|
1085 value &= 0xFF; |
1b80b90399da
Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
380
diff
changeset
|
1086 } else { |
1b80b90399da
Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
380
diff
changeset
|
1087 value >>= 8; |
1b80b90399da
Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
380
diff
changeset
|
1088 } |
372
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1089 } |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1090 } |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1091 break; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1092 } |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1093 printf(format, param, value); |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1094 } |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1095 |
366
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1096 z80_context * zdebugger(z80_context * context, uint16_t address) |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1097 { |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1098 static char last_cmd[1024]; |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1099 char input_buf[1024]; |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1100 static uint16_t branch_t; |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1101 static uint16_t branch_f; |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1102 z80inst inst; |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1103 //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
|
1104 bp_def ** this_bp = find_breakpoint(&zbreakpoints, address); |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1105 if (*this_bp) { |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1106 printf("Z80 Breakpoint %d hit\n", (*this_bp)->index); |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1107 } else { |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1108 zremove_breakpoint(context, address); |
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 uint8_t * pc; |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1111 if (address < 0x4000) { |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1112 pc = z80_ram + (address & 0x1FFF); |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1113 } else if (address >= 0x8000) { |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1114 if (context->bank_reg < (0x400000 >> 15)) { |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1115 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
|
1116 exit(1); |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1117 } else { |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1118 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
|
1119 exit(1); |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1120 } |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1121 } else { |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1122 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
|
1123 exit(1); |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1124 } |
372
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1125 for (disp_def * cur = zdisplays; cur; cur = cur->next) { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1126 zdebugger_print(context, cur->format_char, cur->param); |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1127 } |
366
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1128 uint8_t * after_pc = z80_decode(pc, &inst); |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1129 z80_disasm(&inst, input_buf, address); |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1130 printf("%X:\t%s\n", address, input_buf); |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1131 uint16_t after = address + (after_pc-pc); |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1132 int debugging = 1; |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1133 while(debugging) { |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1134 fputs(">", stdout); |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1135 if (!fgets(input_buf, sizeof(input_buf), stdin)) { |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1136 fputs("fgets failed", 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 strip_nl(input_buf); |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1140 //hitting enter repeats last command |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1141 if (input_buf[0]) { |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1142 strcpy(last_cmd, input_buf); |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1143 } else { |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1144 strcpy(input_buf, last_cmd); |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1145 } |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1146 char * param; |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1147 char format[8]; |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1148 uint32_t value; |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1149 bp_def * new_bp; |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1150 switch(input_buf[0]) |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1151 { |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1152 case 'a': |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1153 param = find_param(input_buf); |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1154 if (!param) { |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1155 fputs("a command requires a parameter\n", stderr); |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1156 break; |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1157 } |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1158 value = strtol(param, NULL, 16); |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1159 zinsert_breakpoint(context, value, (uint8_t *)zdebugger); |
392
1b80b90399da
Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
380
diff
changeset
|
1160 debugging = 0; |
366
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1161 break; |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1162 case 'b': |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1163 param = find_param(input_buf); |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1164 if (!param) { |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1165 fputs("b command requires a parameter\n", stderr); |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1166 break; |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1167 } |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1168 value = strtol(param, NULL, 16); |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1169 zinsert_breakpoint(context, value, (uint8_t *)zdebugger); |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1170 new_bp = malloc(sizeof(bp_def)); |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1171 new_bp->next = zbreakpoints; |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1172 new_bp->address = value; |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1173 new_bp->index = zbp_index++; |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1174 zbreakpoints = new_bp; |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1175 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
|
1176 break; |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1177 case 'c': |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1178 puts("Continuing"); |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1179 debugging = 0; |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1180 break; |
372
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1181 case 'd': |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1182 if (input_buf[1] == 'i') { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1183 char format_char = 0; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1184 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
|
1185 if (input_buf[i] == '/') { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1186 format_char = input_buf[i+1]; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1187 break; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1188 } |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1189 } |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1190 param = find_param(input_buf); |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1191 if (!param) { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1192 fputs("display command requires a parameter\n", stderr); |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1193 break; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1194 } |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1195 zdebugger_print(context, format_char, param); |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1196 add_display(&zdisplays, &zdisp_index, format_char, param); |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1197 } else if (input_buf[1] == 'e' || input_buf[1] == ' ') { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1198 param = find_param(input_buf); |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1199 if (!param) { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1200 fputs("delete command requires a parameter\n", stderr); |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1201 break; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1202 } |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1203 if (param[0] >= '0' && param[0] <= '9') { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1204 value = atoi(param); |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1205 this_bp = find_breakpoint_idx(&zbreakpoints, value); |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1206 if (!*this_bp) { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1207 fprintf(stderr, "Breakpoint %d does not exist\n", value); |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1208 break; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1209 } |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1210 new_bp = *this_bp; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1211 zremove_breakpoint(context, new_bp->address); |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1212 *this_bp = new_bp->next; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1213 free(new_bp); |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1214 } else if (param[0] == 'd') { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1215 param = find_param(param); |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1216 if (!param) { |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1217 fputs("delete display command requires a parameter\n", stderr); |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1218 break; |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1219 } |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1220 remove_display(&zdisplays, atoi(param)); |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1221 } |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1222 } |
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1223 break; |
366
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1224 case 'n': |
392
1b80b90399da
Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
380
diff
changeset
|
1225 //TODO: Handle conditional branch instructions |
1b80b90399da
Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
380
diff
changeset
|
1226 if (inst.op == Z80_JP) { |
1b80b90399da
Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
380
diff
changeset
|
1227 if (inst.addr_mode == Z80_IMMED) { |
1b80b90399da
Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
380
diff
changeset
|
1228 after = inst.immed; |
1b80b90399da
Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
380
diff
changeset
|
1229 } else if (inst.ea_reg == Z80_HL) { |
1b80b90399da
Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
380
diff
changeset
|
1230 after = context->regs[Z80_H] << 8 | context->regs[Z80_L]; |
1b80b90399da
Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
380
diff
changeset
|
1231 } else if (inst.ea_reg == Z80_IX) { |
1b80b90399da
Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
380
diff
changeset
|
1232 after = context->regs[Z80_IXH] << 8 | context->regs[Z80_IXL]; |
1b80b90399da
Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
380
diff
changeset
|
1233 } else if (inst.ea_reg == Z80_IY) { |
1b80b90399da
Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
380
diff
changeset
|
1234 after = context->regs[Z80_IYH] << 8 | context->regs[Z80_IYL]; |
1b80b90399da
Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
380
diff
changeset
|
1235 } |
1b80b90399da
Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
380
diff
changeset
|
1236 } else if(inst.op == Z80_JR) { |
1b80b90399da
Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
380
diff
changeset
|
1237 after += inst.immed; |
1b80b90399da
Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
380
diff
changeset
|
1238 } else if(inst.op == Z80_RET) { |
1b80b90399da
Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
380
diff
changeset
|
1239 if (context->sp < 0x4000) { |
1b80b90399da
Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
380
diff
changeset
|
1240 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
|
1241 } |
1b80b90399da
Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
380
diff
changeset
|
1242 } |
366
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1243 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
|
1244 debugging = 0; |
366
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1245 break; |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1246 case 'p': |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1247 param = find_param(input_buf); |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1248 if (!param) { |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1249 fputs("p command requires a parameter\n", stderr); |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1250 break; |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1251 } |
372
5dcf7551bb36
Bunch of Z80 debugger improvements
Mike Pavone <pavone@retrodev.com>
parents:
368
diff
changeset
|
1252 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
|
1253 break; |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1254 case 'q': |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1255 puts("Quitting"); |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1256 exit(0); |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1257 break; |
395
0b5f93358a93
Add debugger command for saving Z80 RAM to a file
Mike Pavone <pavone@retrodev.com>
parents:
392
diff
changeset
|
1258 case 's': { |
0b5f93358a93
Add debugger command for saving Z80 RAM to a file
Mike Pavone <pavone@retrodev.com>
parents:
392
diff
changeset
|
1259 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
|
1260 if (!param) { |
0b5f93358a93
Add debugger command for saving Z80 RAM to a file
Mike Pavone <pavone@retrodev.com>
parents:
392
diff
changeset
|
1261 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
|
1262 break; |
0b5f93358a93
Add debugger command for saving Z80 RAM to a file
Mike Pavone <pavone@retrodev.com>
parents:
392
diff
changeset
|
1263 } |
0b5f93358a93
Add debugger command for saving Z80 RAM to a file
Mike Pavone <pavone@retrodev.com>
parents:
392
diff
changeset
|
1264 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
|
1265 if (f) { |
0b5f93358a93
Add debugger command for saving Z80 RAM to a file
Mike Pavone <pavone@retrodev.com>
parents:
392
diff
changeset
|
1266 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
|
1267 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
|
1268 } |
0b5f93358a93
Add debugger command for saving Z80 RAM to a file
Mike Pavone <pavone@retrodev.com>
parents:
392
diff
changeset
|
1269 fclose(f); |
0b5f93358a93
Add debugger command for saving Z80 RAM to a file
Mike Pavone <pavone@retrodev.com>
parents:
392
diff
changeset
|
1270 } else { |
0b5f93358a93
Add debugger command for saving Z80 RAM to a file
Mike Pavone <pavone@retrodev.com>
parents:
392
diff
changeset
|
1271 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
|
1272 } |
0b5f93358a93
Add debugger command for saving Z80 RAM to a file
Mike Pavone <pavone@retrodev.com>
parents:
392
diff
changeset
|
1273 break; |
0b5f93358a93
Add debugger command for saving Z80 RAM to a file
Mike Pavone <pavone@retrodev.com>
parents:
392
diff
changeset
|
1274 } |
366
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1275 default: |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1276 fprintf(stderr, "Unrecognized debugger command %s\n", input_buf); |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1277 break; |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1278 } |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1279 } |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1280 return context; |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1281 } |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1282 |
184
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1283 m68k_context * debugger(m68k_context * context, uint32_t address) |
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Fix a bunch of bugs in the CPU core, add a 68K debugger
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166
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1284 { |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
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166
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|
1285 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
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|
1286 char input_buf[1024]; |
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 static uint32_t branch_t; |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
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166
diff
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|
1288 static uint32_t branch_f; |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
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166
diff
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|
1289 m68kinst inst; |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
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166
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|
1290 //probably not necessary, but let's play it safe |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
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|
1291 address &= 0xFFFFFF; |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
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|
1292 if (address == branch_t) { |
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Fix a bunch of bugs in the CPU core, add a 68K debugger
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|
1293 bp_def ** f_bp = find_breakpoint(&breakpoints, branch_f); |
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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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1294 if (!*f_bp) { |
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Fix a bunch of bugs in the CPU core, add a 68K debugger
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|
1295 remove_breakpoint(context, branch_f); |
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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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1296 } |
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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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|
1297 branch_t = branch_f = 0; |
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Fix a bunch of bugs in the CPU core, add a 68K debugger
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166
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|
1298 } else if(address == branch_f) { |
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Fix a bunch of bugs in the CPU core, add a 68K debugger
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166
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|
1299 bp_def ** t_bp = find_breakpoint(&breakpoints, branch_t); |
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Fix a bunch of bugs in the CPU core, add a 68K debugger
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166
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1300 if (!*t_bp) { |
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Fix a bunch of bugs in the CPU core, add a 68K debugger
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|
1301 remove_breakpoint(context, branch_t); |
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Fix a bunch of bugs in the CPU core, add a 68K debugger
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1302 } |
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Fix a bunch of bugs in the CPU core, add a 68K debugger
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|
1303 branch_t = branch_f = 0; |
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Fix a bunch of bugs in the CPU core, add a 68K debugger
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1304 } |
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1305 //Check if this is a user set breakpoint, or just a temporary one |
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|
1306 bp_def ** this_bp = find_breakpoint(&breakpoints, address); |
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Mike Pavone <pavone@retrodev.com>
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|
1307 if (*this_bp) { |
366
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364
diff
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|
1308 printf("68K Breakpoint %d hit\n", (*this_bp)->index); |
184
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1309 } else { |
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|
1310 remove_breakpoint(context, address); |
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1311 } |
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Fix a bunch of bugs in the CPU core, add a 68K debugger
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|
1312 uint16_t * pc; |
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Fix a bunch of bugs in the CPU core, add a 68K debugger
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|
1313 if (address < 0x400000) { |
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166
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|
1314 pc = cart + address/2; |
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|
1315 } else if(address > 0xE00000) { |
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|
1316 pc = ram + (address & 0xFFFF)/2; |
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|
1317 } else { |
366
836585d389b8
Partial implementation of Z80 debugger
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364
diff
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|
1318 fprintf(stderr, "Entered 68K debugger at address %X\n", address); |
184
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|
1319 exit(1); |
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Fix a bunch of bugs in the CPU core, add a 68K debugger
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1320 } |
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Fix a bunch of bugs in the CPU core, add a 68K debugger
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|
1321 uint16_t * after_pc = m68k_decode(pc, &inst, address); |
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Mike Pavone <pavone@retrodev.com>
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|
1322 m68k_disasm(&inst, input_buf); |
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166
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|
1323 printf("%X: %s\n", address, input_buf); |
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Fix a bunch of bugs in the CPU core, add a 68K debugger
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|
1324 uint32_t after = address + (after_pc-pc)*2; |
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|
1325 int debugging = 1; |
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Mike Pavone <pavone@retrodev.com>
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|
1326 while (debugging) { |
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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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|
1327 fputs(">", stdout); |
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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|
1328 if (!fgets(input_buf, sizeof(input_buf), stdin)) { |
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Fix a bunch of bugs in the CPU core, add a 68K debugger
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|
1329 fputs("fgets failed", stderr); |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
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|
1330 break; |
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Fix a bunch of bugs in the CPU core, add a 68K debugger
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1331 } |
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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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|
1332 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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|
1333 //hitting enter repeats last command |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
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166
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|
1334 if (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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|
1335 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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|
1336 } else { |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
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166
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|
1337 strcpy(input_buf, last_cmd); |
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Fix a bunch of bugs in the CPU core, add a 68K debugger
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166
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|
1338 } |
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Fix a bunch of bugs in the CPU core, add a 68K debugger
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166
diff
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|
1339 char * param; |
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Fix a bunch of bugs in the CPU core, add a 68K debugger
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166
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|
1340 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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|
1341 uint32_t value; |
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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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|
1342 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
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|
1343 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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|
1344 { |
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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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|
1345 case 'c': |
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Mike Pavone <pavone@retrodev.com>
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166
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|
1346 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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166
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|
1347 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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|
1348 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
|
1349 case 'b': |
ebcbdd1c4cc8
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parents:
166
diff
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|
1350 param = find_param(input_buf); |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
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166
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|
1351 if (!param) { |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
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166
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|
1352 fputs("b command requires a parameter\n", stderr); |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
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166
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|
1353 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
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|
1354 } |
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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|
1355 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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|
1356 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>
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166
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|
1357 new_bp = malloc(sizeof(bp_def)); |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
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|
1358 new_bp->next = breakpoints; |
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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|
1359 new_bp->address = value; |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
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166
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|
1360 new_bp->index = bp_index++; |
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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|
1361 breakpoints = new_bp; |
366
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
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|
1362 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>
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|
1363 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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|
1364 case 'a': |
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Fix a bunch of bugs in the CPU core, add a 68K debugger
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|
1365 param = find_param(input_buf); |
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|
1366 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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|
1367 fputs("a command requires a parameter\n", stderr); |
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166
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|
1368 break; |
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Fix a bunch of bugs in the CPU core, add a 68K debugger
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|
1369 } |
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Fix a bunch of bugs in the CPU core, add a 68K debugger
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166
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|
1370 value = strtol(param, NULL, 16); |
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Fix a bunch of bugs in the CPU core, add a 68K debugger
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|
1371 insert_breakpoint(context, value, (uint8_t *)debugger); |
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Fix a bunch of bugs in the CPU core, add a 68K debugger
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|
1372 debugging = 0; |
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|
1373 break; |
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Fix a bunch of bugs in the CPU core, add a 68K debugger
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|
1374 case 'd': |
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|
1375 param = find_param(input_buf); |
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Mike Pavone <pavone@retrodev.com>
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|
1376 if (!param) { |
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|
1377 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
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|
1378 break; |
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|
1379 } |
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Fix a bunch of bugs in the CPU core, add a 68K debugger
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|
1380 value = atoi(param); |
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Fix a bunch of bugs in the CPU core, add a 68K debugger
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|
1381 this_bp = find_breakpoint_idx(&breakpoints, value); |
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166
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|
1382 if (!*this_bp) { |
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|
1383 fprintf(stderr, "Breakpoint %d does not exist\n", value); |
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Fix a bunch of bugs in the CPU core, add a 68K debugger
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|
1384 break; |
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|
1385 } |
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Fix a bunch of bugs in the CPU core, add a 68K debugger
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|
1386 new_bp = *this_bp; |
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|
1387 *this_bp = (*this_bp)->next; |
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|
1388 free(new_bp); |
ebcbdd1c4cc8
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|
1389 break; |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
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166
diff
changeset
|
1390 case 'p': |
ebcbdd1c4cc8
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166
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|
1391 strcpy(format, "%s: %d\n"); |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
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166
diff
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|
1392 if (input_buf[1] == '/') { |
ebcbdd1c4cc8
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166
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changeset
|
1393 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
changeset
|
1394 { |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1395 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
|
1396 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
|
1397 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
|
1398 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
|
1399 format[5] = input_buf[2]; |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
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 default: |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1402 fprintf(stderr, "Unrecognized format character: %c\n", input_buf[2]); |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1403 } |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1404 } |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1405 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
|
1406 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
|
1407 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
|
1408 break; |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1409 } |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1410 if (param[0] == 'd' && param[1] >= '0' && param[1] <= '7') { |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1411 value = context->dregs[param[1]-'0']; |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1412 } 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
|
1413 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
|
1414 } else if (param[0] == 'S' && param[1] == 'R') { |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1415 value = (context->status << 8); |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1416 for (int flag = 0; flag < 5; flag++) { |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1417 value |= context->flags[flag] << (4-flag); |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1418 } |
185
b204fbed4efe
Add ability to print out current 68K cycle in debugger
Mike Pavone <pavone@retrodev.com>
parents:
184
diff
changeset
|
1419 } 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
|
1420 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
|
1421 } 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
|
1422 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
|
1423 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
|
1424 } else { |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1425 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
|
1426 break; |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1427 } |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1428 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
|
1429 break; |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1430 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
|
1431 //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
|
1432 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
|
1433 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
|
1434 } 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
|
1435 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
|
1436 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
|
1437 } else { |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1438 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
|
1439 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
|
1440 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
|
1441 } |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1442 } |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1443 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
|
1444 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
|
1445 break; |
327
1b00258b1f29
Added some basic VDP debugging features to debugger. Fixed DMA enable bug
Mike Pavone <pavone@retrodev.com>
parents:
321
diff
changeset
|
1446 case 'v': { |
1b00258b1f29
Added some basic VDP debugging features to debugger. Fixed DMA enable bug
Mike Pavone <pavone@retrodev.com>
parents:
321
diff
changeset
|
1447 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
|
1448 //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
|
1449 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
|
1450 { |
1b00258b1f29
Added some basic VDP debugging features to debugger. Fixed DMA enable bug
Mike Pavone <pavone@retrodev.com>
parents:
321
diff
changeset
|
1451 case 's': |
1b00258b1f29
Added some basic VDP debugging features to debugger. Fixed DMA enable bug
Mike Pavone <pavone@retrodev.com>
parents:
321
diff
changeset
|
1452 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
|
1453 break; |
1b00258b1f29
Added some basic VDP debugging features to debugger. Fixed DMA enable bug
Mike Pavone <pavone@retrodev.com>
parents:
321
diff
changeset
|
1454 case 'r': |
1b00258b1f29
Added some basic VDP debugging features to debugger. Fixed DMA enable bug
Mike Pavone <pavone@retrodev.com>
parents:
321
diff
changeset
|
1455 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
|
1456 break; |
1b00258b1f29
Added some basic VDP debugging features to debugger. Fixed DMA enable bug
Mike Pavone <pavone@retrodev.com>
parents:
321
diff
changeset
|
1457 } |
1b00258b1f29
Added some basic VDP debugging features to debugger. Fixed DMA enable bug
Mike Pavone <pavone@retrodev.com>
parents:
321
diff
changeset
|
1458 break; |
1b00258b1f29
Added some basic VDP debugging features to debugger. Fixed DMA enable bug
Mike Pavone <pavone@retrodev.com>
parents:
321
diff
changeset
|
1459 } |
366
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1460 case 'z': { |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1461 genesis_context * gen = context->system; |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1462 //Z80 debug commands |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1463 switch(input_buf[1]) |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1464 { |
447
e730fc040169
Fix performance regression from stop instruction work
Mike Pavone <pavone@retrodev.com>
parents:
446
diff
changeset
|
1465 case 'b': |
366
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1466 param = find_param(input_buf); |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1467 if (!param) { |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1468 fputs("zb command requires a parameter\n", stderr); |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1469 break; |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1470 } |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1471 value = strtol(param, NULL, 16); |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1472 zinsert_breakpoint(gen->z80, value, (uint8_t *)zdebugger); |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1473 new_bp = malloc(sizeof(bp_def)); |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1474 new_bp->next = zbreakpoints; |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1475 new_bp->address = value; |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1476 new_bp->index = zbp_index++; |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1477 zbreakpoints = new_bp; |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1478 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
|
1479 break; |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1480 } |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1481 break; |
836585d389b8
Partial implementation of Z80 debugger
Mike Pavone <pavone@retrodev.com>
parents:
364
diff
changeset
|
1482 } |
184
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1483 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
|
1484 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
|
1485 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
|
1486 break; |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1487 default: |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1488 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
|
1489 break; |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1490 } |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1491 } |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1492 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
|
1493 } |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1494 |
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
|
1495 #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
|
1496 #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
|
1497 #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
|
1498 #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
|
1499 #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
|
1500 #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
|
1501 #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
|
1502 |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
1503 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
|
1504 {0, 0x400000, 0xFFFFFF, 0, MMAP_READ, cart, |
343
467bfa17004a
Mostly working runtime generation of memory map read/write functions
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|
1505 NULL, NULL, NULL, NULL}, |
447
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Fix performance regression from stop instruction work
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diff
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|
1506 {0xE00000, 0x1000000, 0xFFFF, 0, MMAP_READ | MMAP_WRITE | MMAP_CODE, ram, |
343
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|
1507 NULL, NULL, NULL, NULL}, |
467bfa17004a
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|
1508 {0xC00000, 0xE00000, 0x1FFFFF, 0, 0, NULL, |
467bfa17004a
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diff
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|
1509 (read_16_fun)vdp_port_read, (write_16_fun)vdp_port_write, |
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diff
changeset
|
1510 (read_8_fun)vdp_port_read_b, (write_8_fun)vdp_port_write_b}, |
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diff
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|
1511 {0xA00000, 0xA12000, 0x1FFFF, 0, 0, NULL, |
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342
diff
changeset
|
1512 (read_16_fun)io_read_w, (write_16_fun)io_write_w, |
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diff
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|
1513 (read_8_fun)io_read, (write_8_fun)io_write} |
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diff
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|
1514 }; |
351
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diff
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|
1515 |
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diff
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|
1516 char * sram_filename; |
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diff
changeset
|
1517 genesis_context * genesis; |
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|
1518 void save_sram() |
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|
1519 { |
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|
1520 FILE * f = fopen(sram_filename, "wb"); |
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diff
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|
1521 if (!f) { |
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|
1522 fprintf(stderr, "Failed to open SRAM file %s for writing\n", sram_filename); |
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|
1523 return; |
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|
1524 } |
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diff
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|
1525 uint32_t size = genesis->save_ram_mask+1; |
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diff
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|
1526 if (genesis->save_flags != RAM_FLAG_BOTH) { |
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diff
changeset
|
1527 size/= 2; |
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|
1528 } |
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diff
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|
1529 fwrite(genesis->save_ram, 1, size, f); |
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|
1530 fclose(f); |
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diff
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|
1531 printf("Saved SRAM to %s\n", sram_filename); |
2f264d2a60c2
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diff
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|
1532 } |
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Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
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|
1533 |
424
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
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422
diff
changeset
|
1534 void init_run_cpu(genesis_context * gen, int debug, FILE * address_log, char * statefile) |
351
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Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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diff
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|
1535 { |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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diff
changeset
|
1536 m68k_context context; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
changeset
|
1537 x86_68k_options opts; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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diff
changeset
|
1538 gen->m68k = &context; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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diff
changeset
|
1539 memmap_chunk memmap[MAX_MAP_CHUNKS]; |
2f264d2a60c2
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346
diff
changeset
|
1540 uint32_t num_chunks; |
2f264d2a60c2
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346
diff
changeset
|
1541 void * initial_mapped = NULL; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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diff
changeset
|
1542 gen->save_ram = NULL; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
changeset
|
1543 //TODO: Handle carts larger than 4MB |
2f264d2a60c2
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diff
changeset
|
1544 //TODO: Handle non-standard mappers |
2f264d2a60c2
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346
diff
changeset
|
1545 uint32_t size; |
2f264d2a60c2
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diff
changeset
|
1546 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.
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parents:
346
diff
changeset
|
1547 //Cart has save RAM |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
changeset
|
1548 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.
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346
diff
changeset
|
1549 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.
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346
diff
changeset
|
1550 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.
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parents:
346
diff
changeset
|
1551 uint16_t ram_flags = cart[RAM_FLAGS/2]; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
changeset
|
1552 gen->save_flags = ram_flags & RAM_FLAG_MASK; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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parents:
346
diff
changeset
|
1553 memset(memmap, 0, sizeof(memmap_chunk)*2); |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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parents:
346
diff
changeset
|
1554 if (ram_start >= rom_end) { |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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parents:
346
diff
changeset
|
1555 memmap[0].end = rom_end; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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parents:
346
diff
changeset
|
1556 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
|
1557 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
|
1558 memmap[0].buffer = cart; |
447
e730fc040169
Fix performance regression from stop instruction work
Mike Pavone <pavone@retrodev.com>
parents:
446
diff
changeset
|
1559 |
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
|
1560 ram_start &= 0xFFFFFE; |
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
|
1561 ram_end |= 1; |
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
|
1562 memmap[1].start = ram_start; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
changeset
|
1563 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
|
1564 ram_end += 1; |
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
|
1565 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
|
1566 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
|
1567 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
|
1568 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
|
1569 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
|
1570 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
|
1571 } 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
|
1572 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
|
1573 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
|
1574 } |
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
|
1575 memmap[1].buffer = gen->save_ram = malloc(size); |
447
e730fc040169
Fix performance regression from stop instruction work
Mike Pavone <pavone@retrodev.com>
parents:
446
diff
changeset
|
1576 |
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
|
1577 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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parents:
346
diff
changeset
|
1578 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
|
1579 } else { |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
changeset
|
1580 //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
|
1581 memmap[0].end = 0x200000; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
changeset
|
1582 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
|
1583 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
|
1584 memmap[0].buffer = cart; |
447
e730fc040169
Fix performance regression from stop instruction work
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parents:
446
diff
changeset
|
1585 |
351
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
changeset
|
1586 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
|
1587 memmap[1].end = 0x400000; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
changeset
|
1588 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
|
1589 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
|
1590 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
|
1591 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
|
1592 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
|
1593 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
|
1594 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
|
1595 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
|
1596 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
|
1597 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
|
1598 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
|
1599 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
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|
1600 memset(memmap+num_chunks, 0, sizeof(memmap[num_chunks])); |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
changeset
|
1601 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
|
1602 memmap[num_chunks].end = 0xA13100; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
changeset
|
1603 memmap[num_chunks].mask = 0xFF; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
changeset
|
1604 memmap[num_chunks].write_16 = (write_16_fun)write_bank_reg_w; |
447
e730fc040169
Fix performance regression from stop instruction work
Mike Pavone <pavone@retrodev.com>
parents:
446
diff
changeset
|
1605 memmap[num_chunks].write_8 = (write_8_fun)write_bank_reg_b; |
351
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
changeset
|
1606 num_chunks++; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
changeset
|
1607 ram_end++; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
changeset
|
1608 size = 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
|
1609 if ((ram_flags & RAM_FLAG_MASK) != RAM_FLAG_BOTH) { |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
changeset
|
1610 size /= 2; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
changeset
|
1611 } |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
changeset
|
1612 gen->save_ram = malloc(size); |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
changeset
|
1613 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
|
1614 } |
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
|
1615 } else { |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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parents:
346
diff
changeset
|
1616 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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346
diff
changeset
|
1617 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
|
1618 } |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
changeset
|
1619 if (gen->save_ram) { |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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parents:
346
diff
changeset
|
1620 memset(gen->save_ram, 0, size); |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
changeset
|
1621 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
|
1622 if (f) { |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
changeset
|
1623 uint32_t read = fread(gen->save_ram, 1, size, f); |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
changeset
|
1624 fclose(f); |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
changeset
|
1625 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
|
1626 printf("Loaded SRAM from %s\n", sram_filename); |
2f264d2a60c2
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346
diff
changeset
|
1627 } |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
changeset
|
1628 } |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
changeset
|
1629 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
|
1630 } |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
changeset
|
1631 init_x86_68k_opts(&opts, memmap, num_chunks); |
211 | 1632 opts.address_log = address_log; |
1633 init_68k_context(&context, opts.native_code_map, &opts); | |
447
e730fc040169
Fix performance regression from stop instruction work
Mike Pavone <pavone@retrodev.com>
parents:
446
diff
changeset
|
1634 |
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
|
1635 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
|
1636 context.system = gen; |
211 | 1637 //cartridge ROM |
1638 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
|
1639 context.target_cycle = context.sync_cycle = mclks_per_frame/MCLKS_PER_68K; |
211 | 1640 //work RAM |
1641 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
|
1642 //save RAM/map |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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parents:
346
diff
changeset
|
1643 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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parents:
346
diff
changeset
|
1644 context.mem_pointers[3] = (uint16_t *)gen->save_ram; |
211 | 1645 uint32_t address; |
1646 address = cart[2] << 16 | cart[3]; | |
1647 translate_m68k_stream(address, &context); | |
424
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1648 if (statefile) { |
7e8e179116af
Add support for loading GST format savestates
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parents:
422
diff
changeset
|
1649 uint32_t pc = load_gst(gen, statefile); |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1650 if (!pc) { |
451
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
447
diff
changeset
|
1651 fprintf(stderr, "Failed to load save state %s\n", statefile); |
424
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1652 exit(1); |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1653 } |
451
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
447
diff
changeset
|
1654 printf("Loaded %s\n", statefile); |
424
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1655 if (debug) { |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1656 insert_breakpoint(&context, pc, (uint8_t *)debugger); |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1657 } |
451
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
447
diff
changeset
|
1658 adjust_int_cycle(gen->m68k, gen->vdp); |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
447
diff
changeset
|
1659 gen->z80->native_pc = z80_get_native_address_trans(gen->z80, gen->z80->pc); |
424
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1660 start_68k_context(&context, pc); |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1661 } else { |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1662 if (debug) { |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1663 insert_breakpoint(&context, address, (uint8_t *)debugger); |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1664 } |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1665 m68k_reset(&context); |
211 | 1666 } |
1667 } | |
1668 | |
340
58a085cfc6bd
Set window title based on ROM header name
Mike Pavone <pavone@retrodev.com>
parents:
338
diff
changeset
|
1669 char title[64]; |
58a085cfc6bd
Set window title based on ROM header name
Mike Pavone <pavone@retrodev.com>
parents:
338
diff
changeset
|
1670 |
58a085cfc6bd
Set window title based on ROM header name
Mike Pavone <pavone@retrodev.com>
parents:
338
diff
changeset
|
1671 #define TITLE_START 0x150 |
58a085cfc6bd
Set window title based on ROM header name
Mike Pavone <pavone@retrodev.com>
parents:
338
diff
changeset
|
1672 #define TITLE_END (TITLE_START+48) |
58a085cfc6bd
Set window title based on ROM header name
Mike Pavone <pavone@retrodev.com>
parents:
338
diff
changeset
|
1673 |
58a085cfc6bd
Set window title based on ROM header name
Mike Pavone <pavone@retrodev.com>
parents:
338
diff
changeset
|
1674 void update_title() |
58a085cfc6bd
Set window title based on ROM header name
Mike Pavone <pavone@retrodev.com>
parents:
338
diff
changeset
|
1675 { |
58a085cfc6bd
Set window title based on ROM header name
Mike Pavone <pavone@retrodev.com>
parents:
338
diff
changeset
|
1676 uint16_t *last = cart + TITLE_END/2 - 1; |
58a085cfc6bd
Set window title based on ROM header name
Mike Pavone <pavone@retrodev.com>
parents:
338
diff
changeset
|
1677 while(last > cart + TITLE_START/2 && *last == 0x2020) |
58a085cfc6bd
Set window title based on ROM header name
Mike Pavone <pavone@retrodev.com>
parents:
338
diff
changeset
|
1678 { |
58a085cfc6bd
Set window title based on ROM header name
Mike Pavone <pavone@retrodev.com>
parents:
338
diff
changeset
|
1679 last--; |
58a085cfc6bd
Set window title based on ROM header name
Mike Pavone <pavone@retrodev.com>
parents:
338
diff
changeset
|
1680 } |
58a085cfc6bd
Set window title based on ROM header name
Mike Pavone <pavone@retrodev.com>
parents:
338
diff
changeset
|
1681 uint16_t *start = cart + TITLE_START/2; |
58a085cfc6bd
Set window title based on ROM header name
Mike Pavone <pavone@retrodev.com>
parents:
338
diff
changeset
|
1682 char *cur = title; |
58a085cfc6bd
Set window title based on ROM header name
Mike Pavone <pavone@retrodev.com>
parents:
338
diff
changeset
|
1683 char last_char = ' '; |
58a085cfc6bd
Set window title based on ROM header name
Mike Pavone <pavone@retrodev.com>
parents:
338
diff
changeset
|
1684 for (; start != last; start++) |
58a085cfc6bd
Set window title based on ROM header name
Mike Pavone <pavone@retrodev.com>
parents:
338
diff
changeset
|
1685 { |
58a085cfc6bd
Set window title based on ROM header name
Mike Pavone <pavone@retrodev.com>
parents:
338
diff
changeset
|
1686 if ((last_char != ' ' || (*start >> 8) != ' ') && (*start >> 8) < 0x80) { |
58a085cfc6bd
Set window title based on ROM header name
Mike Pavone <pavone@retrodev.com>
parents:
338
diff
changeset
|
1687 *(cur++) = *start >> 8; |
58a085cfc6bd
Set window title based on ROM header name
Mike Pavone <pavone@retrodev.com>
parents:
338
diff
changeset
|
1688 last_char = *start >> 8; |
58a085cfc6bd
Set window title based on ROM header name
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parents:
338
diff
changeset
|
1689 } |
58a085cfc6bd
Set window title based on ROM header name
Mike Pavone <pavone@retrodev.com>
parents:
338
diff
changeset
|
1690 if (last_char != ' ' || (*start & 0xFF) != ' ' && (*start & 0xFF) < 0x80) { |
58a085cfc6bd
Set window title based on ROM header name
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parents:
338
diff
changeset
|
1691 *(cur++) = *start; |
58a085cfc6bd
Set window title based on ROM header name
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parents:
338
diff
changeset
|
1692 last_char = *start & 0xFF; |
58a085cfc6bd
Set window title based on ROM header name
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parents:
338
diff
changeset
|
1693 } |
58a085cfc6bd
Set window title based on ROM header name
Mike Pavone <pavone@retrodev.com>
parents:
338
diff
changeset
|
1694 } |
58a085cfc6bd
Set window title based on ROM header name
Mike Pavone <pavone@retrodev.com>
parents:
338
diff
changeset
|
1695 *(cur++) = *start >> 8; |
58a085cfc6bd
Set window title based on ROM header name
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parents:
338
diff
changeset
|
1696 if ((*start & 0xFF) != ' ') { |
58a085cfc6bd
Set window title based on ROM header name
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parents:
338
diff
changeset
|
1697 *(cur++) = *start; |
58a085cfc6bd
Set window title based on ROM header name
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parents:
338
diff
changeset
|
1698 } |
58a085cfc6bd
Set window title based on ROM header name
Mike Pavone <pavone@retrodev.com>
parents:
338
diff
changeset
|
1699 strcpy(cur, " - BlastEm"); |
58a085cfc6bd
Set window title based on ROM header name
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parents:
338
diff
changeset
|
1700 } |
58a085cfc6bd
Set window title based on ROM header name
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parents:
338
diff
changeset
|
1701 |
341
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1702 #define REGION_START 0x1F0 |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1703 |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1704 int detect_specific_region(char region) |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1705 { |
346
aff29d50afd5
Fix a region detection bug
Mike Pavone <pavone@retrodev.com>
parents:
345
diff
changeset
|
1706 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
|
1707 } |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1708 |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1709 void detect_region() |
6ad8e36de685
Support regions other than USA
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parents:
340
diff
changeset
|
1710 { |
343
467bfa17004a
Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents:
342
diff
changeset
|
1711 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
|
1712 version_reg = NO_DISK | USA; |
6ad8e36de685
Support regions other than USA
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parents:
340
diff
changeset
|
1713 } else if (detect_specific_region('J')) { |
6ad8e36de685
Support regions other than USA
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parents:
340
diff
changeset
|
1714 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
|
1715 } 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
|
1716 version_reg = NO_DISK | EUR; |
434
f0631c85a90b
Read default region from config file
Mike Pavone <pavone@retrodev.com>
parents:
433
diff
changeset
|
1717 } else { |
f0631c85a90b
Read default region from config file
Mike Pavone <pavone@retrodev.com>
parents:
433
diff
changeset
|
1718 char * def_region = tern_find_ptr(config, "default_region"); |
f0631c85a90b
Read default region from config file
Mike Pavone <pavone@retrodev.com>
parents:
433
diff
changeset
|
1719 if (def_region) { |
f0631c85a90b
Read default region from config file
Mike Pavone <pavone@retrodev.com>
parents:
433
diff
changeset
|
1720 switch(*def_region) |
f0631c85a90b
Read default region from config file
Mike Pavone <pavone@retrodev.com>
parents:
433
diff
changeset
|
1721 { |
f0631c85a90b
Read default region from config file
Mike Pavone <pavone@retrodev.com>
parents:
433
diff
changeset
|
1722 case 'j': |
f0631c85a90b
Read default region from config file
Mike Pavone <pavone@retrodev.com>
parents:
433
diff
changeset
|
1723 case 'J': |
f0631c85a90b
Read default region from config file
Mike Pavone <pavone@retrodev.com>
parents:
433
diff
changeset
|
1724 version_reg = NO_DISK | JAP; |
f0631c85a90b
Read default region from config file
Mike Pavone <pavone@retrodev.com>
parents:
433
diff
changeset
|
1725 break; |
f0631c85a90b
Read default region from config file
Mike Pavone <pavone@retrodev.com>
parents:
433
diff
changeset
|
1726 case 'u': |
f0631c85a90b
Read default region from config file
Mike Pavone <pavone@retrodev.com>
parents:
433
diff
changeset
|
1727 case 'U': |
f0631c85a90b
Read default region from config file
Mike Pavone <pavone@retrodev.com>
parents:
433
diff
changeset
|
1728 version_reg = NO_DISK | USA; |
f0631c85a90b
Read default region from config file
Mike Pavone <pavone@retrodev.com>
parents:
433
diff
changeset
|
1729 break; |
f0631c85a90b
Read default region from config file
Mike Pavone <pavone@retrodev.com>
parents:
433
diff
changeset
|
1730 case 'e': |
f0631c85a90b
Read default region from config file
Mike Pavone <pavone@retrodev.com>
parents:
433
diff
changeset
|
1731 case 'E': |
f0631c85a90b
Read default region from config file
Mike Pavone <pavone@retrodev.com>
parents:
433
diff
changeset
|
1732 version_reg = NO_DISK | EUR; |
f0631c85a90b
Read default region from config file
Mike Pavone <pavone@retrodev.com>
parents:
433
diff
changeset
|
1733 break; |
f0631c85a90b
Read default region from config file
Mike Pavone <pavone@retrodev.com>
parents:
433
diff
changeset
|
1734 } |
f0631c85a90b
Read default region from config file
Mike Pavone <pavone@retrodev.com>
parents:
433
diff
changeset
|
1735 } |
341
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1736 } |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1737 } |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1738 |
88
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1739 int main(int argc, char ** argv) |
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1740 { |
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1741 if (argc < 2) { |
469
5f3344d0d42f
Fix argument handling so that the rom filename does not need to be specified first
Mike Pavone <pavone@retrodev.com>
parents:
467
diff
changeset
|
1742 fputs("Usage: blastem [OPTIONS] ROMFILE [WIDTH] [HEIGHT]\n", stderr); |
88
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1743 return 1; |
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1744 } |
430
7f84090ab1cd
Add config file parser and default config file
Mike Pavone <pavone@retrodev.com>
parents:
425
diff
changeset
|
1745 config = load_config(argv[0]); |
341
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1746 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
|
1747 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
|
1748 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
|
1749 int debug = 0; |
407
c3abc4ada43d
Add support for logging YM2612 channels to WAVE files
Mike Pavone <pavone@retrodev.com>
parents:
405
diff
changeset
|
1750 int ym_log = 0; |
463
a1d298119153
Added -h help text option
Mike Pavone <pavone@retrodev.com>
parents:
458
diff
changeset
|
1751 int loaded = 0; |
469
5f3344d0d42f
Fix argument handling so that the rom filename does not need to be specified first
Mike Pavone <pavone@retrodev.com>
parents:
467
diff
changeset
|
1752 uint8_t force_version = 0; |
5f3344d0d42f
Fix argument handling so that the rom filename does not need to be specified first
Mike Pavone <pavone@retrodev.com>
parents:
467
diff
changeset
|
1753 char * romfname = NULL; |
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
|
1754 FILE *address_log = NULL; |
425
8b3ae850d1c4
Forgot to null initialize the statfile pointer
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
1755 char * statefile = NULL; |
444
cc754a309ead
Add fullscreen support and add a keybinding for exiting the emulator
Mike Pavone <pavone@retrodev.com>
parents:
434
diff
changeset
|
1756 uint8_t fullscreen = 0; |
463
a1d298119153
Added -h help text option
Mike Pavone <pavone@retrodev.com>
parents:
458
diff
changeset
|
1757 for (int i = 1; i < argc; i++) { |
184
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1758 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
|
1759 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
|
1760 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
|
1761 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
|
1762 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
|
1763 case 'f': |
444
cc754a309ead
Add fullscreen support and add a keybinding for exiting the emulator
Mike Pavone <pavone@retrodev.com>
parents:
434
diff
changeset
|
1764 fullscreen = 1; |
338
5c34a9c39394
Re-enable frame limit, but add a command line flag to disable it
Mike Pavone <pavone@retrodev.com>
parents:
336
diff
changeset
|
1765 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
|
1766 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
|
1767 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
|
1768 break; |
464 | 1769 case 'v': |
1770 printf("blastem %s\n", BLASTEM_VERSION); | |
1771 return 0; | |
1772 break; | |
265
c6d12878ea93
Add -n flag for disabling the Z80 core
Mike Pavone <pavone@retrodev.com>
parents:
264
diff
changeset
|
1773 case 'n': |
c6d12878ea93
Add -n flag for disabling the Z80 core
Mike Pavone <pavone@retrodev.com>
parents:
264
diff
changeset
|
1774 z80_enabled = 0; |
c6d12878ea93
Add -n flag for disabling the Z80 core
Mike Pavone <pavone@retrodev.com>
parents:
264
diff
changeset
|
1775 break; |
341
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1776 case 'r': |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1777 i++; |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1778 if (i >= argc) { |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1779 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
|
1780 return 1; |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1781 } |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1782 switch (argv[i][0]) |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1783 { |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1784 case 'j': |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1785 case 'J': |
469
5f3344d0d42f
Fix argument handling so that the rom filename does not need to be specified first
Mike Pavone <pavone@retrodev.com>
parents:
467
diff
changeset
|
1786 force_version = NO_DISK | JAP; |
341
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1787 break; |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1788 case 'u': |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1789 case 'U': |
469
5f3344d0d42f
Fix argument handling so that the rom filename does not need to be specified first
Mike Pavone <pavone@retrodev.com>
parents:
467
diff
changeset
|
1790 force_version = NO_DISK | USA; |
341
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1791 break; |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1792 case 'e': |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1793 case 'E': |
469
5f3344d0d42f
Fix argument handling so that the rom filename does not need to be specified first
Mike Pavone <pavone@retrodev.com>
parents:
467
diff
changeset
|
1794 force_version = NO_DISK | EUR; |
341
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1795 break; |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1796 default: |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1797 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
|
1798 return 1; |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1799 } |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1800 break; |
424
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1801 case 's': |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1802 i++; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1803 if (i >= argc) { |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1804 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
|
1805 return 1; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1806 } |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1807 statefile = argv[i]; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1808 break; |
407
c3abc4ada43d
Add support for logging YM2612 channels to WAVE files
Mike Pavone <pavone@retrodev.com>
parents:
405
diff
changeset
|
1809 case 'y': |
c3abc4ada43d
Add support for logging YM2612 channels to WAVE files
Mike Pavone <pavone@retrodev.com>
parents:
405
diff
changeset
|
1810 ym_log = 1; |
c3abc4ada43d
Add support for logging YM2612 channels to WAVE files
Mike Pavone <pavone@retrodev.com>
parents:
405
diff
changeset
|
1811 break; |
463
a1d298119153
Added -h help text option
Mike Pavone <pavone@retrodev.com>
parents:
458
diff
changeset
|
1812 case 'h': |
a1d298119153
Added -h help text option
Mike Pavone <pavone@retrodev.com>
parents:
458
diff
changeset
|
1813 puts( |
469
5f3344d0d42f
Fix argument handling so that the rom filename does not need to be specified first
Mike Pavone <pavone@retrodev.com>
parents:
467
diff
changeset
|
1814 "Usage: blastem [OPTIONS] ROMFILE [WIDTH] [HEIGHT]\n" |
463
a1d298119153
Added -h help text option
Mike Pavone <pavone@retrodev.com>
parents:
458
diff
changeset
|
1815 "Options:\n" |
a1d298119153
Added -h help text option
Mike Pavone <pavone@retrodev.com>
parents:
458
diff
changeset
|
1816 " -h Print this help text\n" |
a1d298119153
Added -h help text option
Mike Pavone <pavone@retrodev.com>
parents:
458
diff
changeset
|
1817 " -r (J|U|E) Force region to Japan, US or Europe respectively\n" |
a1d298119153
Added -h help text option
Mike Pavone <pavone@retrodev.com>
parents:
458
diff
changeset
|
1818 " -f Start in fullscreen mode\n" |
a1d298119153
Added -h help text option
Mike Pavone <pavone@retrodev.com>
parents:
458
diff
changeset
|
1819 " -s FILE Load a GST format savestate from FILE\n" |
a1d298119153
Added -h help text option
Mike Pavone <pavone@retrodev.com>
parents:
458
diff
changeset
|
1820 " -d Enter debugger on startup\n" |
a1d298119153
Added -h help text option
Mike Pavone <pavone@retrodev.com>
parents:
458
diff
changeset
|
1821 " -n Disable Z80\n" |
464 | 1822 " -v Display version number and exit\n" |
463
a1d298119153
Added -h help text option
Mike Pavone <pavone@retrodev.com>
parents:
458
diff
changeset
|
1823 " -l Log 68K code addresses (useful for assemblers)\n" |
a1d298119153
Added -h help text option
Mike Pavone <pavone@retrodev.com>
parents:
458
diff
changeset
|
1824 " -y Log individual YM-2612 channels to WAVE files\n" |
a1d298119153
Added -h help text option
Mike Pavone <pavone@retrodev.com>
parents:
458
diff
changeset
|
1825 ); |
a1d298119153
Added -h help text option
Mike Pavone <pavone@retrodev.com>
parents:
458
diff
changeset
|
1826 return 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
|
1827 default: |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1828 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
|
1829 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
|
1830 } |
463
a1d298119153
Added -h help text option
Mike Pavone <pavone@retrodev.com>
parents:
458
diff
changeset
|
1831 } else if (!loaded) { |
a1d298119153
Added -h help text option
Mike Pavone <pavone@retrodev.com>
parents:
458
diff
changeset
|
1832 if(!load_rom(argv[i])) { |
469
5f3344d0d42f
Fix argument handling so that the rom filename does not need to be specified first
Mike Pavone <pavone@retrodev.com>
parents:
467
diff
changeset
|
1833 fprintf(stderr, "Failed to open %s for reading\n", argv[i]); |
463
a1d298119153
Added -h help text option
Mike Pavone <pavone@retrodev.com>
parents:
458
diff
changeset
|
1834 return 1; |
a1d298119153
Added -h help text option
Mike Pavone <pavone@retrodev.com>
parents:
458
diff
changeset
|
1835 } |
469
5f3344d0d42f
Fix argument handling so that the rom filename does not need to be specified first
Mike Pavone <pavone@retrodev.com>
parents:
467
diff
changeset
|
1836 romfname = argv[i]; |
463
a1d298119153
Added -h help text option
Mike Pavone <pavone@retrodev.com>
parents:
458
diff
changeset
|
1837 loaded = 1; |
184
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1838 } 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
|
1839 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
|
1840 } 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
|
1841 height = atoi(argv[i]); |
88
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1842 } |
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1843 } |
463
a1d298119153
Added -h help text option
Mike Pavone <pavone@retrodev.com>
parents:
458
diff
changeset
|
1844 if (!loaded) { |
a1d298119153
Added -h help text option
Mike Pavone <pavone@retrodev.com>
parents:
458
diff
changeset
|
1845 fputs("You must specify a ROM filename!\n", stderr); |
a1d298119153
Added -h help text option
Mike Pavone <pavone@retrodev.com>
parents:
458
diff
changeset
|
1846 return 1; |
a1d298119153
Added -h help text option
Mike Pavone <pavone@retrodev.com>
parents:
458
diff
changeset
|
1847 } |
469
5f3344d0d42f
Fix argument handling so that the rom filename does not need to be specified first
Mike Pavone <pavone@retrodev.com>
parents:
467
diff
changeset
|
1848 if (force_version) { |
5f3344d0d42f
Fix argument handling so that the rom filename does not need to be specified first
Mike Pavone <pavone@retrodev.com>
parents:
467
diff
changeset
|
1849 version_reg = force_version; |
5f3344d0d42f
Fix argument handling so that the rom filename does not need to be specified first
Mike Pavone <pavone@retrodev.com>
parents:
467
diff
changeset
|
1850 } |
340
58a085cfc6bd
Set window title based on ROM header name
Mike Pavone <pavone@retrodev.com>
parents:
338
diff
changeset
|
1851 update_title(); |
433
ed4d0017c041
Read default render width from config file
Mike Pavone <pavone@retrodev.com>
parents:
430
diff
changeset
|
1852 int def_width = 0; |
ed4d0017c041
Read default render width from config file
Mike Pavone <pavone@retrodev.com>
parents:
430
diff
changeset
|
1853 char *config_width = tern_find_ptr(config, "videowidth"); |
ed4d0017c041
Read default render width from config file
Mike Pavone <pavone@retrodev.com>
parents:
430
diff
changeset
|
1854 if (config_width) { |
ed4d0017c041
Read default render width from config file
Mike Pavone <pavone@retrodev.com>
parents:
430
diff
changeset
|
1855 def_width = atoi(config_width); |
ed4d0017c041
Read default render width from config file
Mike Pavone <pavone@retrodev.com>
parents:
430
diff
changeset
|
1856 } |
ed4d0017c041
Read default render width from config file
Mike Pavone <pavone@retrodev.com>
parents:
430
diff
changeset
|
1857 if (!def_width) { |
ed4d0017c041
Read default render width from config file
Mike Pavone <pavone@retrodev.com>
parents:
430
diff
changeset
|
1858 def_width = 640; |
ed4d0017c041
Read default render width from config file
Mike Pavone <pavone@retrodev.com>
parents:
430
diff
changeset
|
1859 } |
ed4d0017c041
Read default render width from config file
Mike Pavone <pavone@retrodev.com>
parents:
430
diff
changeset
|
1860 width = width < 320 ? def_width : width; |
184
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1861 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
|
1862 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
|
1863 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
|
1864 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
|
1865 fps = 50; |
15dd6418fe67
Initial PSG support. Mostly works, noise channel is borked though.
Mike Pavone <pavone@retrodev.com>
parents:
351
diff
changeset
|
1866 } |
15dd6418fe67
Initial PSG support. Mostly works, noise channel is borked though.
Mike Pavone <pavone@retrodev.com>
parents:
351
diff
changeset
|
1867 if (!headless) { |
444
cc754a309ead
Add fullscreen support and add a keybinding for exiting the emulator
Mike Pavone <pavone@retrodev.com>
parents:
434
diff
changeset
|
1868 render_init(width, height, title, fps, fullscreen); |
342
13f994c88c34
Get frame time correct and frame rate sort of correct for EUR region
Mike Pavone <pavone@retrodev.com>
parents:
341
diff
changeset
|
1869 } |
88
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1870 vdp_context v_context; |
447
e730fc040169
Fix performance regression from stop instruction work
Mike Pavone <pavone@retrodev.com>
parents:
446
diff
changeset
|
1871 |
88
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1872 init_vdp_context(&v_context); |
447
e730fc040169
Fix performance regression from stop instruction work
Mike Pavone <pavone@retrodev.com>
parents:
446
diff
changeset
|
1873 |
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
|
1874 ym2612_context y_context; |
407
c3abc4ada43d
Add support for logging YM2612 channels to WAVE files
Mike Pavone <pavone@retrodev.com>
parents:
405
diff
changeset
|
1875 ym_init(&y_context, render_sample_rate(), fps == 60 ? MCLKS_NTSC : MCLKS_PAL, MCLKS_PER_YM, render_audio_buffer(), ym_log ? YM_OPT_WAVE_LOG : 0); |
447
e730fc040169
Fix performance regression from stop instruction work
Mike Pavone <pavone@retrodev.com>
parents:
446
diff
changeset
|
1876 |
354
15dd6418fe67
Initial PSG support. Mostly works, noise channel is borked though.
Mike Pavone <pavone@retrodev.com>
parents:
351
diff
changeset
|
1877 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
|
1878 psg_init(&p_context, render_sample_rate(), fps == 60 ? MCLKS_NTSC : MCLKS_PAL, MCLKS_PER_PSG, render_audio_buffer()); |
447
e730fc040169
Fix performance regression from stop instruction work
Mike Pavone <pavone@retrodev.com>
parents:
446
diff
changeset
|
1879 |
260
625f8e4d5fd2
Initial stab at integartiong Z80 core
Mike Pavone <pavone@retrodev.com>
parents:
215
diff
changeset
|
1880 z80_context z_context; |
625f8e4d5fd2
Initial stab at integartiong Z80 core
Mike Pavone <pavone@retrodev.com>
parents:
215
diff
changeset
|
1881 x86_z80_options z_opts; |
625f8e4d5fd2
Initial stab at integartiong Z80 core
Mike Pavone <pavone@retrodev.com>
parents:
215
diff
changeset
|
1882 init_x86_z80_opts(&z_opts); |
625f8e4d5fd2
Initial stab at integartiong Z80 core
Mike Pavone <pavone@retrodev.com>
parents:
215
diff
changeset
|
1883 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
|
1884 |
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
|
1885 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
|
1886 memset(&gen, 0, sizeof(gen)); |
290
171f97e70d85
Implement writes from Z80 to YM-2612
Mike Pavone <pavone@retrodev.com>
parents:
289
diff
changeset
|
1887 |
171f97e70d85
Implement writes from Z80 to YM-2612
Mike Pavone <pavone@retrodev.com>
parents:
289
diff
changeset
|
1888 z_context.system = &gen; |
260
625f8e4d5fd2
Initial stab at integartiong Z80 core
Mike Pavone <pavone@retrodev.com>
parents:
215
diff
changeset
|
1889 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
|
1890 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
|
1891 z_context.int_cycle = CYCLE_NEVER; |
625f8e4d5fd2
Initial stab at integartiong Z80 core
Mike Pavone <pavone@retrodev.com>
parents:
215
diff
changeset
|
1892 z_context.mem_pointers[1] = z_context.mem_pointers[2] = (uint8_t *)cart; |
447
e730fc040169
Fix performance regression from stop instruction work
Mike Pavone <pavone@retrodev.com>
parents:
446
diff
changeset
|
1893 |
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
|
1894 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
|
1895 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
|
1896 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
|
1897 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
|
1898 genesis = &gen; |
447
e730fc040169
Fix performance regression from stop instruction work
Mike Pavone <pavone@retrodev.com>
parents:
446
diff
changeset
|
1899 |
469
5f3344d0d42f
Fix argument handling so that the rom filename does not need to be specified first
Mike Pavone <pavone@retrodev.com>
parents:
467
diff
changeset
|
1900 int fname_size = strlen(romfname); |
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
|
1901 sram_filename = malloc(fname_size+6); |
469
5f3344d0d42f
Fix argument handling so that the rom filename does not need to be specified first
Mike Pavone <pavone@retrodev.com>
parents:
467
diff
changeset
|
1902 memcpy(sram_filename, romfname, fname_size); |
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
|
1903 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
|
1904 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
|
1905 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
|
1906 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
|
1907 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
|
1908 } |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
1909 } |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
1910 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
|
1911 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
|
1912 } |
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
|
1913 set_keybindings(); |
447
e730fc040169
Fix performance regression from stop instruction work
Mike Pavone <pavone@retrodev.com>
parents:
446
diff
changeset
|
1914 |
424
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1915 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
|
1916 return 0; |
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1917 } |