Mercurial > repos > blastem
annotate blastem.c @ 619:3072fb746601
Added support for JR and JRcc in Z80 test generator
author | Michael Pavone <pavone@retrodev.com> |
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date | Mon, 29 Dec 2014 21:36:17 -0800 |
parents | 649db9397fa1 |
children | f822d9216968 |
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_core.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 "gdb_remote.h" |
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14 #include "gst.h" |
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15 #include "util.h" |
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16 #include <stdio.h> |
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17 #include <stdlib.h> |
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18 #include <string.h> |
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19 |
531 | 20 #define BLASTEM_VERSION "0.2.0" |
464 | 21 |
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22 #define MCLKS_NTSC 53693175 |
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23 #define MCLKS_PAL 53203395 |
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24 |
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25 #define MCLKS_PER_68K 7 |
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26 #define MCLKS_PER_YM MCLKS_PER_68K |
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27 #define MCLKS_PER_Z80 15 |
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28 #define MCLKS_PER_PSG (MCLKS_PER_Z80*16) |
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29 |
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30 //TODO: Figure out the exact value for this |
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31 #define LINES_NTSC 262 |
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32 #define LINES_PAL 312 |
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33 |
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34 #define MAX_SOUND_CYCLES 100000 |
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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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The local clone on my laptop got messed up and some changes had not been pushed. This commit represents the status of the working copy from that clone. It unfortunately contains some changes that I did not intend to commit yet, but this seems like the best option at the moment.
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43 int exit_after = 0; |
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44 int z80_enabled = 1; |
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45 int frame_limit = 0; |
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46 |
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47 tern_node * config; |
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48 |
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49 #ifndef MIN |
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50 #define MIN(a,b) ((a) < (b) ? (a) : (b)) |
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51 #endif |
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52 |
166 | 53 #define SMD_HEADER_SIZE 512 |
54 #define SMD_MAGIC1 0x03 | |
55 #define SMD_MAGIC2 0xAA | |
56 #define SMD_MAGIC3 0xBB | |
57 #define SMD_BLOCK_SIZE 0x4000 | |
58 | |
59 int load_smd_rom(long filesize, FILE * f) | |
60 { | |
61 uint8_t block[SMD_BLOCK_SIZE]; | |
62 filesize -= SMD_HEADER_SIZE; | |
63 fseek(f, SMD_HEADER_SIZE, SEEK_SET); | |
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64 |
166 | 65 uint16_t * dst = cart; |
66 while (filesize > 0) { | |
67 fread(block, 1, SMD_BLOCK_SIZE, f); | |
68 for (uint8_t *low = block, *high = (block+SMD_BLOCK_SIZE/2), *end = block+SMD_BLOCK_SIZE; high < end; high++, low++) { | |
69 *(dst++) = *high << 8 | *low; | |
70 } | |
71 filesize -= SMD_BLOCK_SIZE; | |
72 } | |
73 return 1; | |
74 } | |
75 | |
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76 int load_rom(char * filename) |
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77 { |
166 | 78 uint8_t header[10]; |
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79 FILE * f = fopen(filename, "rb"); |
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80 if (!f) { |
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81 return 0; |
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82 } |
166 | 83 fread(header, 1, sizeof(header), f); |
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84 fseek(f, 0, SEEK_END); |
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85 long filesize = ftell(f); |
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86 if (filesize/2 > CARTRIDGE_WORDS) { |
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87 //carts bigger than 4MB not currently supported |
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88 filesize = CARTRIDGE_WORDS*2; |
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89 } |
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90 fseek(f, 0, SEEK_SET); |
166 | 91 if (header[1] == SMD_MAGIC1 && header[8] == SMD_MAGIC2 && header[9] == SMD_MAGIC3) { |
92 int i; | |
93 for (i = 3; i < 8; i++) { | |
94 if (header[i] != 0) { | |
95 break; | |
96 } | |
97 } | |
98 if (i == 8) { | |
99 if (header[2]) { | |
100 fprintf(stderr, "%s is a split SMD ROM which is not currently supported", filename); | |
101 exit(1); | |
102 } | |
103 return load_smd_rom(filesize, f); | |
104 } | |
105 } | |
106 fread(cart, 2, filesize/2, f); | |
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107 fclose(f); |
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108 for(unsigned short * cur = cart; cur - cart < (filesize/2); ++cur) |
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109 { |
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110 *cur = (*cur >> 8) | (*cur << 8); |
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111 } |
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112 //TODO: Mirror ROM |
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113 return 1; |
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114 } |
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115 |
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116 uint16_t read_dma_value(uint32_t address) |
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117 { |
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118 //addresses here are word addresses (i.e. bit 0 corresponds to A1), so no need to do div by 2 |
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119 if (address < 0x200000) { |
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120 return cart[address]; |
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121 } else if(address >= 0x700000) { |
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122 return ram[address & 0x7FFF]; |
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123 } |
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124 //TODO: Figure out what happens when you try to DMA from weird adresses like IO or banked Z80 area |
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125 return 0; |
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126 } |
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127 |
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128 //TODO: Make these dependent on the video mode |
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129 //#define VINT_CYCLE ((MCLKS_LINE * 225 + (148 + 40) * 4)/MCLKS_PER_68K) |
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130 #define ZVINT_CYCLE ((MCLKS_LINE * 225 + (148 + 40) * 4)/MCLKS_PER_Z80) |
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131 //#define VINT_CYCLE ((MCLKS_LINE * 226)/MCLKS_PER_68K) |
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132 //#define ZVINT_CYCLE ((MCLKS_LINE * 226)/MCLKS_PER_Z80) |
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133 |
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134 void adjust_int_cycle(m68k_context * context, vdp_context * v_context) |
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135 { |
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136 context->int_cycle = CYCLE_NEVER; |
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137 if ((context->status & 0x7) < 6) { |
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138 uint32_t next_vint = vdp_next_vint(v_context); |
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139 if (next_vint != CYCLE_NEVER) { |
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140 next_vint /= MCLKS_PER_68K; |
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141 context->int_cycle = next_vint; |
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142 context->int_num = 6; |
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143 } |
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144 if ((context->status & 0x7) < 4) { |
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145 uint32_t next_hint = vdp_next_hint(v_context); |
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146 if (next_hint != CYCLE_NEVER) { |
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147 next_hint /= MCLKS_PER_68K; |
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148 if (next_hint < context->int_cycle) { |
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149 context->int_cycle = next_hint; |
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150 context->int_num = 4; |
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151 |
317
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152 } |
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153 } |
186
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154 } |
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155 } |
317
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156 |
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157 context->target_cycle = context->int_cycle < context->sync_cycle ? context->int_cycle : context->sync_cycle; |
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158 /*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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159 context->current_cycle, context->target_cycle, context->int_cycle, context->int_num, (context->status & 0x7), |
317
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160 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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161 } |
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162 |
198
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163 int break_on_sync = 0; |
451
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164 int save_state = 0; |
260
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165 |
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166 uint8_t reset = 1; |
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167 uint8_t need_reset = 0; |
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168 uint8_t busreq = 0; |
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169 uint8_t busack = 0; |
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170 uint32_t busack_cycle = CYCLE_NEVER; |
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171 uint8_t new_busack = 0; |
280 | 172 //#define DO_DEBUG_PRINT |
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173 #ifdef DO_DEBUG_PRINT |
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174 #define dprintf printf |
271
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175 #define dputs puts |
268
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176 #else |
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177 #define dprintf |
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178 #define dputs |
268
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179 #endif |
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180 |
402
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181 #define Z80_VINT_DURATION 128 |
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182 |
268
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183 void sync_z80(z80_context * z_context, uint32_t mclks) |
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184 { |
565
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185 #ifndef NO_Z80 |
265
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186 if (z80_enabled && !reset && !busreq) { |
333 | 187 genesis_context * gen = z_context->system; |
260
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188 z_context->sync_cycle = mclks / MCLKS_PER_Z80; |
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189 if (z_context->current_cycle < z_context->sync_cycle) { |
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190 if (need_reset) { |
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191 z80_reset(z_context); |
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192 need_reset = 0; |
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193 } |
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194 uint32_t vint_cycle = vdp_next_vint_z80(gen->vdp) / MCLKS_PER_Z80; |
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195 while (z_context->current_cycle < z_context->sync_cycle) { |
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196 if (z_context->iff1 && z_context->current_cycle < (vint_cycle + Z80_VINT_DURATION)) { |
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197 z_context->int_cycle = vint_cycle < z_context->int_enable_cycle ? z_context->int_enable_cycle : vint_cycle; |
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198 } else { |
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199 z_context->int_cycle = CYCLE_NEVER; |
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200 } |
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201 z_context->target_cycle = z_context->sync_cycle < z_context->int_cycle ? z_context->sync_cycle : z_context->int_cycle; |
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202 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); |
593
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203 z_context->run(z_context); |
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204 dprintf("Z80 ran to cycle %d\n", z_context->current_cycle); |
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205 } |
260
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206 } |
548
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207 } else |
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208 #endif |
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209 { |
289
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210 z_context->current_cycle = mclks / MCLKS_PER_Z80; |
260
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211 } |
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212 } |
380
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213 |
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214 void sync_sound(genesis_context * gen, uint32_t target) |
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215 { |
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216 //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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217 while (target > gen->psg->cycles && target - gen->psg->cycles > MAX_SOUND_CYCLES) { |
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218 uint32_t cur_target = gen->psg->cycles + MAX_SOUND_CYCLES; |
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219 //printf("Running PSG to cycle %d\n", cur_target); |
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220 psg_run(gen->psg, cur_target); |
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221 //printf("Running YM-2612 to cycle %d\n", cur_target); |
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222 ym_run(gen->ym, cur_target); |
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223 } |
380
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224 psg_run(gen->psg, target); |
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225 ym_run(gen->ym, target); |
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226 |
380
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227 //printf("Target: %d, YM bufferpos: %d, PSG bufferpos: %d\n", target, gen->ym->buffer_pos, gen->psg->buffer_pos * 2); |
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228 } |
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229 |
321
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230 uint32_t frame=0; |
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231 m68k_context * sync_components(m68k_context * context, uint32_t address) |
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232 { |
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233 //TODO: Handle sync targets smaller than a single frame |
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234 genesis_context * gen = context->system; |
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235 vdp_context * v_context = gen->vdp; |
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236 z80_context * z_context = gen->z80; |
268
6c2d7e003a55
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diff
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|
237 uint32_t mclks = context->current_cycle * MCLKS_PER_68K; |
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|
238 sync_z80(z_context, mclks); |
342
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|
239 if (mclks >= mclks_per_frame) { |
380
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Make the PSG and YM2612 use the master clock internal with an increment based on clock divider so that they stay perflectly in sync. Run both the PSG and YM2612 whenver one of them needs to be run.
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240 sync_sound(gen, mclks); |
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diff
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|
241 gen->ym->current_cycle -= mclks_per_frame; |
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Make the PSG and YM2612 use the master clock internal with an increment based on clock divider so that they stay perflectly in sync. Run both the PSG and YM2612 whenver one of them needs to be run.
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diff
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242 gen->psg->cycles -= mclks_per_frame; |
374 | 243 if (gen->ym->write_cycle != CYCLE_NEVER) { |
244 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; | |
245 } | |
453
b491df8bdbc0
Adjust VBLANK flag and refresh timing to be in line with logic analyzer and visual observations of direct color DMA demos. Remove debug print statements.
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diff
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246 //printf("reached frame end | 68K Cycles: %d, MCLK Cycles: %d\n", context->current_cycle, mclks); |
342
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diff
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247 vdp_run_context(v_context, mclks_per_frame); |
488
32f053ad9b02
Basic OpenGL rendering is working
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487
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248 |
215
2b1c2c28b261
Added headless flag to avoid initializing SDL and opening a window when running tests.
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211
diff
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249 if (!headless) { |
338
5c34a9c39394
Re-enable frame limit, but add a command line flag to disable it
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336
diff
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250 break_on_sync |= wait_render_frame(v_context, frame_limit); |
505
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The local clone on my laptop got messed up and some changes had not been pushed. This commit represents the status of the working copy from that clone. It unfortunately contains some changes that I did not intend to commit yet, but this seems like the best option at the moment.
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diff
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251 } else if(exit_after){ |
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The local clone on my laptop got messed up and some changes had not been pushed. This commit represents the status of the working copy from that clone. It unfortunately contains some changes that I did not intend to commit yet, but this seems like the best option at the moment.
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252 --exit_after; |
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The local clone on my laptop got messed up and some changes had not been pushed. This commit represents the status of the working copy from that clone. It unfortunately contains some changes that I did not intend to commit yet, but this seems like the best option at the moment.
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253 if (!exit_after) { |
b7b7a1cab44a
The local clone on my laptop got messed up and some changes had not been pushed. This commit represents the status of the working copy from that clone. It unfortunately contains some changes that I did not intend to commit yet, but this seems like the best option at the moment.
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254 exit(0); |
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The local clone on my laptop got messed up and some changes had not been pushed. This commit represents the status of the working copy from that clone. It unfortunately contains some changes that I did not intend to commit yet, but this seems like the best option at the moment.
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diff
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255 } |
215
2b1c2c28b261
Added headless flag to avoid initializing SDL and opening a window when running tests.
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211
diff
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|
256 } |
321
146c87616b05
Don't update interrupt mask on non-interrupt exceptions
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diff
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257 frame++; |
342
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258 mclks -= mclks_per_frame; |
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259 vdp_adjust_cycles(v_context, mclks_per_frame); |
421
d0cacb4ade0b
Move IO code to a separate file and do a tiny bit of refactoring
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260 io_adjust_cycles(gen->ports, context->current_cycle, mclks_per_frame/MCLKS_PER_68K); |
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261 io_adjust_cycles(gen->ports+1, context->current_cycle, mclks_per_frame/MCLKS_PER_68K); |
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262 io_adjust_cycles(gen->ports+2, context->current_cycle, mclks_per_frame/MCLKS_PER_68K); |
344
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diff
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263 if (busack_cycle != CYCLE_NEVER) { |
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264 if (busack_cycle > mclks_per_frame/MCLKS_PER_68K) { |
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265 busack_cycle -= mclks_per_frame/MCLKS_PER_68K; |
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266 } else { |
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267 busack_cycle = CYCLE_NEVER; |
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268 busack = new_busack; |
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269 } |
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diff
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270 } |
342
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271 context->current_cycle -= mclks_per_frame/MCLKS_PER_68K; |
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diff
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|
272 if (z_context->current_cycle >= mclks_per_frame/MCLKS_PER_Z80) { |
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diff
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273 z_context->current_cycle -= mclks_per_frame/MCLKS_PER_Z80; |
260
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274 } else { |
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275 z_context->current_cycle = 0; |
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276 } |
88
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277 if (mclks) { |
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278 vdp_run_context(v_context, mclks); |
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279 } |
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280 } else { |
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281 //printf("running VDP for %d cycles\n", mclks - v_context->cycles); |
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282 vdp_run_context(v_context, mclks); |
380
1c8d74f2ab0b
Make the PSG and YM2612 use the master clock internal with an increment based on clock divider so that they stay perflectly in sync. Run both the PSG and YM2612 whenver one of them needs to be run.
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283 sync_sound(gen, mclks); |
88
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284 } |
317
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Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port.
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285 if (context->int_ack) { |
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Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port.
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286 vdp_int_ack(v_context, context->int_ack); |
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Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port.
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287 context->int_ack = 0; |
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Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port.
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288 } |
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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289 adjust_int_cycle(context, v_context); |
451
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
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diff
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290 if (address) { |
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Added support for saving savestates. Added gst savestate format test harness
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diff
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291 if (break_on_sync) { |
198
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Add support for breaking into the debugger while game is running
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292 break_on_sync = 0; |
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293 debugger(context, address); |
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294 } |
451
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diff
changeset
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295 if (save_state) { |
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diff
changeset
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296 save_state = 0; |
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297 while (!z_context->pc) |
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298 { |
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299 sync_z80(z_context, z_context->current_cycle * MCLKS_PER_Z80 + MCLKS_PER_Z80); |
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300 } |
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diff
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301 save_gst(gen, "savestate.gst", address); |
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302 } |
198
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diff
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303 } |
88
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diff
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304 return context; |
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diff
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305 } |
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diff
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306 |
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diff
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307 m68k_context * vdp_port_write(uint32_t vdp_port, m68k_context * context, uint16_t value) |
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diff
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308 { |
343
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Mostly working runtime generation of memory map read/write functions
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342
diff
changeset
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309 if (vdp_port & 0x2700E0) { |
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diff
changeset
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310 printf("machine freeze due to write to address %X\n", 0xC00000 | vdp_port); |
467bfa17004a
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diff
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311 exit(1); |
467bfa17004a
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parents:
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diff
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312 } |
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diff
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313 vdp_port &= 0x1F; |
88
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diff
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314 //printf("vdp_port write: %X, value: %X, cycle: %d\n", vdp_port, value, context->current_cycle); |
198
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diff
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315 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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316 vdp_context * v_context = context->video_context; |
508
b976c6d6e5fb
Initial attempt at emulating extended bank area access delays when 68K bus is busy with VDP stuff. Also emulate the extra delay on the second access of a word-wide read to the bank area. Needs work as it seems to break stuff.
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parents:
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diff
changeset
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317 genesis_context * gen = context->system; |
88
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diff
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318 if (vdp_port < 0x10) { |
149
139e5dcd6aa3
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parents:
144
diff
changeset
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319 int blocked; |
345
29d2ca563499
Don't sync the 68K clock to the VDP clock unless the 68K had to wait for the VDP. This unfortunately breaks the direct color DMA demos, but should be more correct overall.
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diff
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320 uint32_t before_cycle = v_context->cycles; |
88
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diff
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321 if (vdp_port < 4) { |
508
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Initial attempt at emulating extended bank area access delays when 68K bus is busy with VDP stuff. Also emulate the extra delay on the second access of a word-wide read to the bank area. Needs work as it seems to break stuff.
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diff
changeset
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322 gen->bus_busy = 1; |
149
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diff
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323 while (vdp_data_port_write(v_context, value) < 0) { |
88
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diff
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324 while(v_context->flags & FLAG_DMA_RUN) { |
342
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diff
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|
325 vdp_run_dma_done(v_context, mclks_per_frame); |
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diff
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326 if (v_context->cycles >= mclks_per_frame) { |
534
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parents:
531
diff
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327 context->current_cycle = v_context->cycles / MCLKS_PER_68K; |
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328 if (context->current_cycle * MCLKS_PER_68K < mclks_per_frame) { |
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parents:
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diff
changeset
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329 ++context->current_cycle; |
215
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parents:
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diff
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330 } |
534
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331 sync_components(context, 0); |
88
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332 } |
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diff
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333 } |
450
3758bcdae5de
Fix bug that caused a DMA fill to start after another DMA operation completed if the FIFO is not empty
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parents:
447
diff
changeset
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334 //context->current_cycle = v_context->cycles / MCLKS_PER_68K; |
149
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diff
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335 } |
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diff
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336 } else if(vdp_port < 8) { |
508
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Initial attempt at emulating extended bank area access delays when 68K bus is busy with VDP stuff. Also emulate the extra delay on the second access of a word-wide read to the bank area. Needs work as it seems to break stuff.
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parents:
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diff
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|
337 gen->bus_busy = 1; |
149
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diff
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338 blocked = vdp_control_port_write(v_context, value); |
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diff
changeset
|
339 if (blocked) { |
139e5dcd6aa3
Make writes to control and data port block when DMA is in progress
Mike Pavone <pavone@retrodev.com>
parents:
144
diff
changeset
|
340 while (blocked) { |
139e5dcd6aa3
Make writes to control and data port block when DMA is in progress
Mike Pavone <pavone@retrodev.com>
parents:
144
diff
changeset
|
341 while(v_context->flags & FLAG_DMA_RUN) { |
342
13f994c88c34
Get frame time correct and frame rate sort of correct for EUR region
Mike Pavone <pavone@retrodev.com>
parents:
341
diff
changeset
|
342 vdp_run_dma_done(v_context, mclks_per_frame); |
13f994c88c34
Get frame time correct and frame rate sort of correct for EUR region
Mike Pavone <pavone@retrodev.com>
parents:
341
diff
changeset
|
343 if (v_context->cycles >= mclks_per_frame) { |
534
c641006da28e
Properly sync hardware when frame end is reached during DMA
Mike Pavone <pavone@retrodev.com>
parents:
531
diff
changeset
|
344 context->current_cycle = v_context->cycles / MCLKS_PER_68K; |
c641006da28e
Properly sync hardware when frame end is reached during DMA
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parents:
531
diff
changeset
|
345 if (context->current_cycle * MCLKS_PER_68K < mclks_per_frame) { |
c641006da28e
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parents:
531
diff
changeset
|
346 ++context->current_cycle; |
215
2b1c2c28b261
Added headless flag to avoid initializing SDL and opening a window when running tests.
Mike Pavone <pavone@retrodev.com>
parents:
211
diff
changeset
|
347 } |
534
c641006da28e
Properly sync hardware when frame end is reached during DMA
Mike Pavone <pavone@retrodev.com>
parents:
531
diff
changeset
|
348 sync_components(context, 0); |
149
139e5dcd6aa3
Make writes to control and data port block when DMA is in progress
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144
diff
changeset
|
349 } |
139e5dcd6aa3
Make writes to control and data port block when DMA is in progress
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parents:
144
diff
changeset
|
350 } |
139e5dcd6aa3
Make writes to control and data port block when DMA is in progress
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parents:
144
diff
changeset
|
351 if (blocked < 0) { |
139e5dcd6aa3
Make writes to control and data port block when DMA is in progress
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parents:
144
diff
changeset
|
352 blocked = vdp_control_port_write(v_context, value); |
139e5dcd6aa3
Make writes to control and data port block when DMA is in progress
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parents:
144
diff
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|
353 } else { |
139e5dcd6aa3
Make writes to control and data port block when DMA is in progress
Mike Pavone <pavone@retrodev.com>
parents:
144
diff
changeset
|
354 blocked = 0; |
139e5dcd6aa3
Make writes to control and data port block when DMA is in progress
Mike Pavone <pavone@retrodev.com>
parents:
144
diff
changeset
|
355 } |
139e5dcd6aa3
Make writes to control and data port block when DMA is in progress
Mike Pavone <pavone@retrodev.com>
parents:
144
diff
changeset
|
356 } |
88
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
357 } else { |
186
02e25abe2dcd
Cleanup VINT code and fix bug in which VINT cycle would be set incorrectly after a VDP control port write
Mike Pavone <pavone@retrodev.com>
parents:
185
diff
changeset
|
358 adjust_int_cycle(context, v_context); |
88
c339559f1d4f
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Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
359 } |
c339559f1d4f
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parents:
diff
changeset
|
360 } else { |
c339559f1d4f
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diff
changeset
|
361 printf("Illegal write to HV Counter port %X\n", vdp_port); |
c339559f1d4f
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diff
changeset
|
362 exit(1); |
c339559f1d4f
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parents:
diff
changeset
|
363 } |
345
29d2ca563499
Don't sync the 68K clock to the VDP clock unless the 68K had to wait for the VDP. This unfortunately breaks the direct color DMA demos, but should be more correct overall.
Mike Pavone <pavone@retrodev.com>
parents:
344
diff
changeset
|
364 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
|
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
29d2ca563499
Don't sync the 68K clock to the VDP clock unless the 68K had to wait for the VDP. This unfortunately breaks the direct color DMA demos, but should be more correct overall.
Mike Pavone <pavone@retrodev.com>
parents:
344
diff
changeset
|
366 context->current_cycle = v_context->cycles / MCLKS_PER_68K; |
29d2ca563499
Don't sync the 68K clock to the VDP clock unless the 68K had to wait for the VDP. This unfortunately breaks the direct color DMA demos, but should be more correct overall.
Mike Pavone <pavone@retrodev.com>
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344
diff
changeset
|
367 } |
88
c339559f1d4f
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parents:
diff
changeset
|
368 } else if (vdp_port < 0x18) { |
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
|
369 sync_sound(gen, context->current_cycle * MCLKS_PER_68K); |
354
15dd6418fe67
Initial PSG support. Mostly works, noise channel is borked though.
Mike Pavone <pavone@retrodev.com>
parents:
351
diff
changeset
|
370 psg_write(gen->psg, value); |
88
c339559f1d4f
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|
371 } else { |
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diff
changeset
|
372 //TODO: Implement undocumented test register(s) |
c339559f1d4f
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parents:
diff
changeset
|
373 } |
508
b976c6d6e5fb
Initial attempt at emulating extended bank area access delays when 68K bus is busy with VDP stuff. Also emulate the extra delay on the second access of a word-wide read to the bank area. Needs work as it seems to break stuff.
Michael Pavone <pavone@retrodev.com>
parents:
505
diff
changeset
|
374 if (gen->bus_busy) |
b976c6d6e5fb
Initial attempt at emulating extended bank area access delays when 68K bus is busy with VDP stuff. Also emulate the extra delay on the second access of a word-wide read to the bank area. Needs work as it seems to break stuff.
Michael Pavone <pavone@retrodev.com>
parents:
505
diff
changeset
|
375 { |
b976c6d6e5fb
Initial attempt at emulating extended bank area access delays when 68K bus is busy with VDP stuff. Also emulate the extra delay on the second access of a word-wide read to the bank area. Needs work as it seems to break stuff.
Michael Pavone <pavone@retrodev.com>
parents:
505
diff
changeset
|
376 //Lock the Z80 out of the bus until the VDP access is complete |
b976c6d6e5fb
Initial attempt at emulating extended bank area access delays when 68K bus is busy with VDP stuff. Also emulate the extra delay on the second access of a word-wide read to the bank area. Needs work as it seems to break stuff.
Michael Pavone <pavone@retrodev.com>
parents:
505
diff
changeset
|
377 sync_z80(gen->z80, v_context->cycles); |
b976c6d6e5fb
Initial attempt at emulating extended bank area access delays when 68K bus is busy with VDP stuff. Also emulate the extra delay on the second access of a word-wide read to the bank area. Needs work as it seems to break stuff.
Michael Pavone <pavone@retrodev.com>
parents:
505
diff
changeset
|
378 gen->bus_busy = 0; |
b976c6d6e5fb
Initial attempt at emulating extended bank area access delays when 68K bus is busy with VDP stuff. Also emulate the extra delay on the second access of a word-wide read to the bank area. Needs work as it seems to break stuff.
Michael Pavone <pavone@retrodev.com>
parents:
505
diff
changeset
|
379 } |
88
c339559f1d4f
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parents:
diff
changeset
|
380 return context; |
c339559f1d4f
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parents:
diff
changeset
|
381 } |
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parents:
diff
changeset
|
382 |
343
467bfa17004a
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342
diff
changeset
|
383 m68k_context * vdp_port_write_b(uint32_t vdp_port, m68k_context * context, uint8_t value) |
467bfa17004a
Mostly working runtime generation of memory map read/write functions
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parents:
342
diff
changeset
|
384 { |
357
fa7ea48be9a9
Allow VDP/PSG writes from Z80
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parents:
356
diff
changeset
|
385 return vdp_port_write(vdp_port, context, vdp_port < 0x10 ? value | value << 8 : ((vdp_port & 1) ? value : 0)); |
fa7ea48be9a9
Allow VDP/PSG writes from Z80
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parents:
356
diff
changeset
|
386 } |
fa7ea48be9a9
Allow VDP/PSG writes from Z80
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parents:
356
diff
changeset
|
387 |
592
4ff7bbb3943b
Get rest of emulator compiling again with Z80 core enabled
Michael Pavone <pavone@retrodev.com>
parents:
590
diff
changeset
|
388 void * z80_vdp_port_write(uint32_t vdp_port, void * vcontext, uint8_t value) |
357
fa7ea48be9a9
Allow VDP/PSG writes from Z80
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parents:
356
diff
changeset
|
389 { |
592
4ff7bbb3943b
Get rest of emulator compiling again with Z80 core enabled
Michael Pavone <pavone@retrodev.com>
parents:
590
diff
changeset
|
390 z80_context * context = vcontext; |
357
fa7ea48be9a9
Allow VDP/PSG writes from Z80
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parents:
356
diff
changeset
|
391 genesis_context * gen = context->system; |
358
9498cfa7f7c8
Make Z80 writes to VDP/PSG not potentially crash the emulator
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parents:
357
diff
changeset
|
392 if (vdp_port & 0xE0) { |
9498cfa7f7c8
Make Z80 writes to VDP/PSG not potentially crash the emulator
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parents:
357
diff
changeset
|
393 printf("machine freeze due to write to Z80 address %X\n", 0x7F00 | vdp_port); |
9498cfa7f7c8
Make Z80 writes to VDP/PSG not potentially crash the emulator
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parents:
357
diff
changeset
|
394 exit(1); |
9498cfa7f7c8
Make Z80 writes to VDP/PSG not potentially crash the emulator
Mike Pavone <pavone@retrodev.com>
parents:
357
diff
changeset
|
395 } |
9498cfa7f7c8
Make Z80 writes to VDP/PSG not potentially crash the emulator
Mike Pavone <pavone@retrodev.com>
parents:
357
diff
changeset
|
396 if (vdp_port < 0x10) { |
9498cfa7f7c8
Make Z80 writes to VDP/PSG not potentially crash the emulator
Mike Pavone <pavone@retrodev.com>
parents:
357
diff
changeset
|
397 //These probably won't currently interact well with the 68K accessing the VDP |
9498cfa7f7c8
Make Z80 writes to VDP/PSG not potentially crash the emulator
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parents:
357
diff
changeset
|
398 vdp_run_context(gen->vdp, context->current_cycle * MCLKS_PER_Z80); |
9498cfa7f7c8
Make Z80 writes to VDP/PSG not potentially crash the emulator
Mike Pavone <pavone@retrodev.com>
parents:
357
diff
changeset
|
399 if (vdp_port < 4) { |
9498cfa7f7c8
Make Z80 writes to VDP/PSG not potentially crash the emulator
Mike Pavone <pavone@retrodev.com>
parents:
357
diff
changeset
|
400 vdp_data_port_write(gen->vdp, value << 8 | value); |
9498cfa7f7c8
Make Z80 writes to VDP/PSG not potentially crash the emulator
Mike Pavone <pavone@retrodev.com>
parents:
357
diff
changeset
|
401 } else if (vdp_port < 8) { |
9498cfa7f7c8
Make Z80 writes to VDP/PSG not potentially crash the emulator
Mike Pavone <pavone@retrodev.com>
parents:
357
diff
changeset
|
402 vdp_control_port_write(gen->vdp, value << 8 | value); |
9498cfa7f7c8
Make Z80 writes to VDP/PSG not potentially crash the emulator
Mike Pavone <pavone@retrodev.com>
parents:
357
diff
changeset
|
403 } else { |
9498cfa7f7c8
Make Z80 writes to VDP/PSG not potentially crash the emulator
Mike Pavone <pavone@retrodev.com>
parents:
357
diff
changeset
|
404 printf("Illegal write to HV Counter port %X\n", vdp_port); |
9498cfa7f7c8
Make Z80 writes to VDP/PSG not potentially crash the emulator
Mike Pavone <pavone@retrodev.com>
parents:
357
diff
changeset
|
405 exit(1); |
9498cfa7f7c8
Make Z80 writes to VDP/PSG not potentially crash the emulator
Mike Pavone <pavone@retrodev.com>
parents:
357
diff
changeset
|
406 } |
9498cfa7f7c8
Make Z80 writes to VDP/PSG not potentially crash the emulator
Mike Pavone <pavone@retrodev.com>
parents:
357
diff
changeset
|
407 } else if (vdp_port < 0x18) { |
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
|
408 sync_sound(gen, context->current_cycle * MCLKS_PER_Z80); |
358
9498cfa7f7c8
Make Z80 writes to VDP/PSG not potentially crash the emulator
Mike Pavone <pavone@retrodev.com>
parents:
357
diff
changeset
|
409 psg_write(gen->psg, value); |
9498cfa7f7c8
Make Z80 writes to VDP/PSG not potentially crash the emulator
Mike Pavone <pavone@retrodev.com>
parents:
357
diff
changeset
|
410 } else { |
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
|
411 vdp_test_port_write(gen->vdp, value); |
358
9498cfa7f7c8
Make Z80 writes to VDP/PSG not potentially crash the emulator
Mike Pavone <pavone@retrodev.com>
parents:
357
diff
changeset
|
412 } |
357
fa7ea48be9a9
Allow VDP/PSG writes from Z80
Mike Pavone <pavone@retrodev.com>
parents:
356
diff
changeset
|
413 return context; |
343
467bfa17004a
Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents:
342
diff
changeset
|
414 } |
467bfa17004a
Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents:
342
diff
changeset
|
415 |
467bfa17004a
Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents:
342
diff
changeset
|
416 uint16_t vdp_port_read(uint32_t vdp_port, m68k_context * context) |
88
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
417 { |
343
467bfa17004a
Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents:
342
diff
changeset
|
418 if (vdp_port & 0x2700E0) { |
467bfa17004a
Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents:
342
diff
changeset
|
419 printf("machine freeze due to read from address %X\n", 0xC00000 | vdp_port); |
467bfa17004a
Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents:
342
diff
changeset
|
420 exit(1); |
467bfa17004a
Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents:
342
diff
changeset
|
421 } |
467bfa17004a
Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents:
342
diff
changeset
|
422 vdp_port &= 0x1F; |
467bfa17004a
Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents:
342
diff
changeset
|
423 uint16_t value; |
198
209a37eed3e7
Add support for breaking into the debugger while game is running
Mike Pavone <pavone@retrodev.com>
parents:
197
diff
changeset
|
424 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.
Mike Pavone <pavone@retrodev.com>
parents:
260
diff
changeset
|
425 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
|
426 uint32_t before_cycle = v_context->cycles; |
88
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
427 if (vdp_port < 0x10) { |
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
428 if (vdp_port < 4) { |
343
467bfa17004a
Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents:
342
diff
changeset
|
429 value = vdp_data_port_read(v_context); |
88
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
430 } else if(vdp_port < 8) { |
343
467bfa17004a
Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents:
342
diff
changeset
|
431 value = vdp_control_port_read(v_context); |
88
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
432 } else { |
343
467bfa17004a
Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents:
342
diff
changeset
|
433 value = vdp_hv_counter_read(v_context); |
467bfa17004a
Mostly working runtime generation of memory map read/write functions
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parents:
342
diff
changeset
|
434 //printf("HV Counter: %X at cycle %d\n", value, v_context->cycles); |
88
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
435 } |
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
|
436 } else if (vdp_port < 0x18){ |
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
|
437 printf("Illegal read from PSG port %X\n", vdp_port); |
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
|
438 exit(1); |
88
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
439 } else { |
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
|
440 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.
Mike Pavone <pavone@retrodev.com>
parents:
469
diff
changeset
|
441 } |
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
|
442 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
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|
443 //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.
Mike Pavone <pavone@retrodev.com>
parents:
469
diff
changeset
|
444 context->current_cycle = v_context->cycles / MCLKS_PER_68K; |
88
c339559f1d4f
Forgot to add blastem main file earlier
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parents:
diff
changeset
|
445 } |
343
467bfa17004a
Mostly working runtime generation of memory map read/write functions
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parents:
342
diff
changeset
|
446 return value; |
467bfa17004a
Mostly working runtime generation of memory map read/write functions
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parents:
342
diff
changeset
|
447 } |
467bfa17004a
Mostly working runtime generation of memory map read/write functions
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diff
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|
448 |
467bfa17004a
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|
449 uint8_t vdp_port_read_b(uint32_t vdp_port, m68k_context * context) |
467bfa17004a
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342
diff
changeset
|
450 { |
467bfa17004a
Mostly working runtime generation of memory map read/write functions
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diff
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|
451 uint16_t value = vdp_port_read(vdp_port, context); |
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diff
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|
452 if (vdp_port & 1) { |
467bfa17004a
Mostly working runtime generation of memory map read/write functions
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342
diff
changeset
|
453 return value; |
467bfa17004a
Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents:
342
diff
changeset
|
454 } else { |
467bfa17004a
Mostly working runtime generation of memory map read/write functions
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parents:
342
diff
changeset
|
455 return value >> 8; |
467bfa17004a
Mostly working runtime generation of memory map read/write functions
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parents:
342
diff
changeset
|
456 } |
88
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
457 } |
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
458 |
592
4ff7bbb3943b
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parents:
590
diff
changeset
|
459 uint8_t z80_vdp_port_read(uint32_t vdp_port, void * vcontext) |
4ff7bbb3943b
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parents:
590
diff
changeset
|
460 { |
4ff7bbb3943b
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diff
changeset
|
461 z80_context * context = vcontext; |
4ff7bbb3943b
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diff
changeset
|
462 if (vdp_port & 0xE0) { |
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590
diff
changeset
|
463 printf("machine freeze due to read from Z80 address %X\n", 0x7F00 | vdp_port); |
4ff7bbb3943b
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parents:
590
diff
changeset
|
464 exit(1); |
4ff7bbb3943b
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Michael Pavone <pavone@retrodev.com>
parents:
590
diff
changeset
|
465 } |
4ff7bbb3943b
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Michael Pavone <pavone@retrodev.com>
parents:
590
diff
changeset
|
466 genesis_context * gen = context->system; |
4ff7bbb3943b
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diff
changeset
|
467 vdp_port &= 0x1F; |
4ff7bbb3943b
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parents:
590
diff
changeset
|
468 uint16_t ret; |
4ff7bbb3943b
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parents:
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diff
changeset
|
469 if (vdp_port < 0x10) { |
4ff7bbb3943b
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parents:
590
diff
changeset
|
470 //These probably won't currently interact well with the 68K accessing the VDP |
4ff7bbb3943b
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changeset
|
471 vdp_run_context(gen->vdp, context->current_cycle * MCLKS_PER_Z80); |
4ff7bbb3943b
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diff
changeset
|
472 if (vdp_port < 4) { |
4ff7bbb3943b
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diff
changeset
|
473 ret = vdp_data_port_read(gen->vdp); |
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|
474 } else if (vdp_port < 8) { |
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diff
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|
475 ret = vdp_control_port_read(gen->vdp); |
4ff7bbb3943b
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Michael Pavone <pavone@retrodev.com>
parents:
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diff
changeset
|
476 } else { |
4ff7bbb3943b
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parents:
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diff
changeset
|
477 printf("Illegal write to HV Counter port %X\n", vdp_port); |
4ff7bbb3943b
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parents:
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diff
changeset
|
478 exit(1); |
4ff7bbb3943b
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Michael Pavone <pavone@retrodev.com>
parents:
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diff
changeset
|
479 } |
4ff7bbb3943b
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Michael Pavone <pavone@retrodev.com>
parents:
590
diff
changeset
|
480 } else { |
4ff7bbb3943b
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diff
changeset
|
481 //TODO: Figure out the correct value today |
4ff7bbb3943b
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diff
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|
482 ret = 0xFFFF; |
4ff7bbb3943b
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parents:
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diff
changeset
|
483 } |
4ff7bbb3943b
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diff
changeset
|
484 return vdp_port & 1 ? ret : ret >> 8; |
4ff7bbb3943b
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diff
changeset
|
485 } |
4ff7bbb3943b
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Michael Pavone <pavone@retrodev.com>
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590
diff
changeset
|
486 |
279
6be6056735a9
Fix native address lookup in bannked memory area
Mike Pavone <pavone@retrodev.com>
parents:
276
diff
changeset
|
487 uint32_t zram_counter = 0; |
289
1cc0850ab6bc
Hopefully more correct implementation of the Z80 busack status
Mike Pavone <pavone@retrodev.com>
parents:
288
diff
changeset
|
488 #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>
parents:
335
diff
changeset
|
489 #define Z80_BUSY_DELAY 1//TODO: Find the actual value for this |
289
1cc0850ab6bc
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288
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|
490 #define Z80_REQ_BUSY 1 |
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288
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|
491 #define Z80_REQ_ACK 0 |
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288
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|
492 #define Z80_RES_BUSACK reset |
279
6be6056735a9
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276
diff
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|
493 |
88
c339559f1d4f
Forgot to add blastem main file earlier
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parents:
diff
changeset
|
494 m68k_context * io_write(uint32_t location, m68k_context * context, uint8_t value) |
c339559f1d4f
Forgot to add blastem main file earlier
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parents:
diff
changeset
|
495 { |
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:
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diff
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|
496 genesis_context * gen = context->system; |
153
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149
diff
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|
497 if (location < 0x10000) { |
336
87b65e5ce1ab
Fix a stupid bug in z80 busreq acknowledge delay code and make some small improvements there too
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335
diff
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|
498 if (busack_cycle <= context->current_cycle) { |
153
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diff
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|
499 busack = new_busack; |
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|
500 busack_cycle = CYCLE_NEVER; |
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diff
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|
501 } |
42c031184e8a
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149
diff
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|
502 if (!(busack || reset)) { |
42c031184e8a
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149
diff
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|
503 location &= 0x7FFF; |
42c031184e8a
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149
diff
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|
504 if (location < 0x4000) { |
42c031184e8a
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149
diff
changeset
|
505 z80_ram[location & 0x1FFF] = value; |
565
9324f721efa6
Add a separate flag/define for disabling the Z80 at compile time to ease refactoring
Michael Pavone <pavone@retrodev.com>
parents:
558
diff
changeset
|
506 #ifndef NO_Z80 |
288
a8ee7934a1f8
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280
diff
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|
507 z80_handle_code_write(location & 0x1FFF, gen->z80); |
548
a3afee2271ce
Initial work on the x86-32 target
Michael Pavone <pavone@retrodev.com>
parents:
534
diff
changeset
|
508 #endif |
288
a8ee7934a1f8
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parents:
280
diff
changeset
|
509 } 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>
parents:
374
diff
changeset
|
510 sync_sound(gen, context->current_cycle * MCLKS_PER_68K); |
288
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280
diff
changeset
|
511 if (location & 1) { |
a8ee7934a1f8
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diff
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|
512 ym_data_write(gen->ym, value); |
a8ee7934a1f8
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280
diff
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|
513 } else if(location & 2) { |
a8ee7934a1f8
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parents:
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diff
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|
514 ym_address_write_part2(gen->ym, value); |
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
|
515 } else { |
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
|
516 ym_address_write_part1(gen->ym, value); |
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
|
517 } |
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
|
518 } else if (location == 0x6000) { |
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
|
519 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
|
520 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
|
521 gen->z80->mem_pointers[1] = (gen->z80->bank_reg << 15) + ((char *)gen->z80->mem_pointers[2]); |
042c4ba4a838
Implement writes from 68K to Z80 bank register and make reads from port c control register return 0 again
Mike Pavone <pavone@retrodev.com>
parents:
404
diff
changeset
|
522 } else { |
042c4ba4a838
Implement writes from 68K to Z80 bank register and make reads from port c control register return 0 again
Mike Pavone <pavone@retrodev.com>
parents:
404
diff
changeset
|
523 gen->z80->mem_pointers[1] = NULL; |
042c4ba4a838
Implement writes from 68K to Z80 bank register and make reads from port c control register return 0 again
Mike Pavone <pavone@retrodev.com>
parents:
404
diff
changeset
|
524 } |
395
0b5f93358a93
Add debugger command for saving Z80 RAM to a file
Mike Pavone <pavone@retrodev.com>
parents:
392
diff
changeset
|
525 } else { |
0b5f93358a93
Add debugger command for saving Z80 RAM to a file
Mike Pavone <pavone@retrodev.com>
parents:
392
diff
changeset
|
526 printf("68K write to unhandled Z80 address %X\n", location); |
0b5f93358a93
Add debugger command for saving Z80 RAM to a file
Mike Pavone <pavone@retrodev.com>
parents:
392
diff
changeset
|
527 exit(1); |
153
42c031184e8a
Implement access to Z80 RAM
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parents:
149
diff
changeset
|
528 } |
88
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
529 } |
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
530 } else { |
153
42c031184e8a
Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents:
149
diff
changeset
|
531 location &= 0x1FFF; |
42c031184e8a
Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents:
149
diff
changeset
|
532 if (location < 0x100) { |
42c031184e8a
Implement access to Z80 RAM
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parents:
149
diff
changeset
|
533 switch(location/2) |
42c031184e8a
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parents:
149
diff
changeset
|
534 { |
42c031184e8a
Implement access to Z80 RAM
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diff
changeset
|
535 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
|
536 io_data_write(gen->ports, value, context->current_cycle); |
153
42c031184e8a
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parents:
149
diff
changeset
|
537 break; |
42c031184e8a
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Mike Pavone <pavone@retrodev.com>
parents:
149
diff
changeset
|
538 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
|
539 io_data_write(gen->ports+1, value, context->current_cycle); |
153
42c031184e8a
Implement access to Z80 RAM
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parents:
149
diff
changeset
|
540 break; |
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
|
541 case 0x3: |
d0cacb4ade0b
Move IO code to a separate file and do a tiny bit of refactoring
Mike Pavone <pavone@retrodev.com>
parents:
418
diff
changeset
|
542 io_data_write(gen->ports+2, value, context->current_cycle); |
153
42c031184e8a
Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents:
149
diff
changeset
|
543 break; |
42c031184e8a
Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents:
149
diff
changeset
|
544 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
|
545 gen->ports[0].control = value; |
153
42c031184e8a
Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents:
149
diff
changeset
|
546 break; |
42c031184e8a
Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents:
149
diff
changeset
|
547 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
|
548 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
|
549 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
|
550 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
|
551 gen->ports[2].control = value; |
153
42c031184e8a
Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents:
149
diff
changeset
|
552 break; |
88
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
553 } |
153
42c031184e8a
Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents:
149
diff
changeset
|
554 } else { |
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555 if (location == 0x1100) { |
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556 if (busack_cycle <= context->current_cycle) { |
153
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557 busack = new_busack; |
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558 busack_cycle = CYCLE_NEVER; |
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559 } |
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560 if (value & 1) { |
271
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561 dputs("bus requesting Z80"); |
488
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562 |
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563 if(!reset && !busreq) { |
482
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564 sync_z80(gen->z80, context->current_cycle * MCLKS_PER_68K + Z80_ACK_DELAY*MCLKS_PER_Z80); |
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565 busack_cycle = (gen->z80->current_cycle * MCLKS_PER_Z80) / MCLKS_PER_68K;//context->current_cycle + Z80_ACK_DELAY; |
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566 new_busack = Z80_REQ_ACK; |
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567 } |
364
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568 busreq = 1; |
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569 } else { |
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570 sync_z80(gen->z80, context->current_cycle * MCLKS_PER_68K); |
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571 if (busreq) { |
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572 dputs("releasing z80 bus"); |
280 | 573 #ifdef DO_DEBUG_PRINT |
279
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574 char fname[20]; |
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575 sprintf(fname, "zram-%d", zram_counter++); |
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576 FILE * f = fopen(fname, "wb"); |
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577 fwrite(z80_ram, 1, sizeof(z80_ram), f); |
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578 fclose(f); |
280 | 579 #endif |
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580 busack_cycle = ((gen->z80->current_cycle + Z80_BUSY_DELAY) * MCLKS_PER_Z80) / MCLKS_PER_68K; |
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581 new_busack = Z80_REQ_BUSY; |
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582 busreq = 0; |
260
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583 } |
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584 //busack_cycle = CYCLE_NEVER; |
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585 //busack = Z80_REQ_BUSY; |
488
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586 |
88
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587 } |
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588 } else if (location == 0x1200) { |
288
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589 sync_z80(gen->z80, context->current_cycle * MCLKS_PER_68K); |
153
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590 if (value & 1) { |
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591 if (reset && busreq) { |
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592 new_busack = 0; |
289
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593 busack_cycle = ((gen->z80->current_cycle + Z80_ACK_DELAY) * MCLKS_PER_Z80) / MCLKS_PER_68K;//context->current_cycle + Z80_ACK_DELAY; |
153
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594 } |
260
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595 //TODO: Deal with the scenario in which reset is not asserted long enough |
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596 if (reset) { |
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597 need_reset = 1; |
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598 //TODO: Add necessary delay between release of reset and start of execution |
505
b7b7a1cab44a
The local clone on my laptop got messed up and some changes had not been pushed. This commit represents the status of the working copy from that clone. It unfortunately contains some changes that I did not intend to commit yet, but this seems like the best option at the moment.
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599 gen->z80->current_cycle = (context->current_cycle * MCLKS_PER_68K) / MCLKS_PER_Z80 + 16; |
260
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600 } |
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601 reset = 0; |
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602 } else { |
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603 reset = 1; |
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604 } |
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605 } |
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606 } |
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607 } |
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608 return context; |
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609 } |
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610 |
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611 m68k_context * io_write_w(uint32_t location, m68k_context * context, uint16_t value) |
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612 { |
404
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613 if (location < 0x10000 || (location & 0x1FFF) >= 0x100) { |
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614 return io_write(location, context, value >> 8); |
88
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615 } else { |
404
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616 return io_write(location, context, value); |
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617 } |
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618 } |
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619 |
130
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|
620 #define USA 0x80 |
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621 #define JAP 0x00 |
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622 #define EUR 0xC0 |
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|
623 #define NO_DISK 0x20 |
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624 uint8_t version_reg = NO_DISK | USA; |
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625 |
343
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626 uint8_t io_read(uint32_t location, m68k_context * context) |
88
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627 { |
343
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628 uint8_t value; |
288
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diff
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|
629 genesis_context *gen = context->system; |
153
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630 if (location < 0x10000) { |
336
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|
631 if (busack_cycle <= context->current_cycle) { |
153
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diff
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|
632 busack = new_busack; |
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|
633 busack_cycle = CYCLE_NEVER; |
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|
634 } |
289
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|
635 if (!(busack==Z80_REQ_BUSY || reset)) { |
153
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|
636 location &= 0x7FFF; |
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|
637 if (location < 0x4000) { |
343
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|
638 value = z80_ram[location & 0x1FFF]; |
288
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280
diff
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|
639 } else if (location < 0x6000) { |
380
1c8d74f2ab0b
Make the PSG and YM2612 use the master clock internal with an increment based on clock divider so that they stay perflectly in sync. Run both the PSG and YM2612 whenver one of them needs to be run.
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|
640 sync_sound(gen, context->current_cycle * MCLKS_PER_68K); |
343
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|
641 value = ym_read_status(gen->ym); |
153
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diff
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|
642 } else { |
343
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changeset
|
643 value = 0xFF; |
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|
644 } |
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342
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|
645 } else { |
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changeset
|
646 value = 0xFF; |
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|
647 } |
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|
648 } else { |
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|
649 location &= 0x1FFF; |
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|
650 if (location < 0x100) { |
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diff
changeset
|
651 switch(location/2) |
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diff
changeset
|
652 { |
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|
653 case 0x0: |
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diff
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|
654 //version bits should be 0 for now since we're not emulating TMSS |
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|
655 value = version_reg; |
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changeset
|
656 break; |
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|
657 case 0x1: |
421
d0cacb4ade0b
Move IO code to a separate file and do a tiny bit of refactoring
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diff
changeset
|
658 value = io_data_read(gen->ports, context->current_cycle); |
343
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|
659 break; |
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|
660 case 0x2: |
421
d0cacb4ade0b
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418
diff
changeset
|
661 value = io_data_read(gen->ports+1, context->current_cycle); |
343
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|
662 break; |
421
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changeset
|
663 case 0x3: |
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changeset
|
664 value = io_data_read(gen->ports+2, context->current_cycle); |
343
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|
665 break; |
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changeset
|
666 case 0x4: |
421
d0cacb4ade0b
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diff
changeset
|
667 value = gen->ports[0].control; |
343
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|
668 break; |
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changeset
|
669 case 0x5: |
421
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418
diff
changeset
|
670 value = gen->ports[1].control; |
343
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671 break; |
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672 case 0x6: |
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673 value = gen->ports[2].control; |
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674 break; |
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675 default: |
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676 value = 0xFF; |
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677 } |
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678 } else { |
343
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679 if (location == 0x1100) { |
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680 if (busack_cycle <= context->current_cycle) { |
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681 busack = new_busack; |
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682 busack_cycle = CYCLE_NEVER; |
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683 } |
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684 value = Z80_RES_BUSACK || busack; |
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685 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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686 } else if (location == 0x1200) { |
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687 value = !reset; |
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688 } else { |
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689 value = 0xFF; |
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690 printf("Byte read of unknown IO location: %X\n", location); |
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691 } |
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692 } |
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693 } |
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694 return value; |
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695 } |
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696 |
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697 uint16_t io_read_w(uint32_t location, m68k_context * context) |
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698 { |
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699 uint16_t value = io_read(location, context); |
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700 if (location < 0x10000 || (location & 0x1FFF) < 0x100) { |
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701 value = value | (value << 8); |
88
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702 } else { |
404
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703 value <<= 8; |
88
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704 } |
343
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705 return value; |
88
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706 } |
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707 |
592
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708 void * z80_write_ym(uint32_t location, void * vcontext, uint8_t value) |
290
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709 { |
592
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710 z80_context * context = vcontext; |
290
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711 genesis_context * gen = context->system; |
380
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712 sync_sound(gen, context->current_cycle * MCLKS_PER_Z80); |
290
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713 if (location & 1) { |
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714 ym_data_write(gen->ym, value); |
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715 } else if (location & 2) { |
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716 ym_address_write_part2(gen->ym, value); |
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717 } else { |
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718 ym_address_write_part1(gen->ym, value); |
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|
719 } |
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720 return context; |
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|
721 } |
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|
722 |
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|
723 uint8_t z80_read_ym(uint32_t location, void * vcontext) |
290
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724 { |
592
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|
725 z80_context * context = vcontext; |
290
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|
726 genesis_context * gen = context->system; |
380
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|
727 sync_sound(gen, context->current_cycle * MCLKS_PER_Z80); |
290
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728 return ym_read_status(gen->ym); |
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|
729 } |
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|
730 |
592
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diff
changeset
|
731 uint8_t z80_read_bank(uint32_t location, void * vcontext) |
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diff
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|
732 { |
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parents:
590
diff
changeset
|
733 z80_context * context = vcontext; |
604
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parents:
602
diff
changeset
|
734 uint32_t address = context->bank_reg << 15 | location; |
616
649db9397fa1
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Michael Pavone <pavone@retrodev.com>
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606
diff
changeset
|
735 if (address >= 0xC00000 && address < 0xE00000) { |
649db9397fa1
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parents:
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diff
changeset
|
736 return z80_vdp_port_read(location & 0xFF, context); |
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606
diff
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|
737 } else { |
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parents:
606
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|
738 fprintf(stderr, "Unhandled read by Z80 from address %X through banked memory area\n", address); |
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diff
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|
739 } |
592
4ff7bbb3943b
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590
diff
changeset
|
740 return 0; |
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590
diff
changeset
|
741 } |
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diff
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|
742 |
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diff
changeset
|
743 void *z80_write_bank(uint32_t location, void * vcontext, uint8_t value) |
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|
744 { |
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changeset
|
745 z80_context * context = vcontext; |
604
39d7d463ed5b
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602
diff
changeset
|
746 uint32_t address = context->bank_reg << 15 | location; |
39d7d463ed5b
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parents:
602
diff
changeset
|
747 if (address >= 0xE00000) { |
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diff
changeset
|
748 address &= 0xFFFF; |
39d7d463ed5b
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parents:
602
diff
changeset
|
749 ((uint8_t *)ram)[address ^ 1] = value; |
616
649db9397fa1
Add support for Z80 access to VDP via bank area
Michael Pavone <pavone@retrodev.com>
parents:
606
diff
changeset
|
750 } else if (address >= 0xC00000) { |
649db9397fa1
Add support for Z80 access to VDP via bank area
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parents:
606
diff
changeset
|
751 z80_vdp_port_write(location & 0xFF, context, value); |
604
39d7d463ed5b
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parents:
602
diff
changeset
|
752 } else { |
39d7d463ed5b
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parents:
602
diff
changeset
|
753 fprintf(stderr, "Unhandled write by Z80 to address %X through banked memory area\n", address); |
39d7d463ed5b
Get Z80 banked access sort of working again
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parents:
602
diff
changeset
|
754 } |
39d7d463ed5b
Get Z80 banked access sort of working again
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parents:
602
diff
changeset
|
755 return context; |
39d7d463ed5b
Get Z80 banked access sort of working again
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parents:
602
diff
changeset
|
756 } |
39d7d463ed5b
Get Z80 banked access sort of working again
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parents:
602
diff
changeset
|
757 |
39d7d463ed5b
Get Z80 banked access sort of working again
Michael Pavone <pavone@retrodev.com>
parents:
602
diff
changeset
|
758 void *z80_write_bank_reg(uint32_t location, void * vcontext, uint8_t value) |
39d7d463ed5b
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parents:
602
diff
changeset
|
759 { |
39d7d463ed5b
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parents:
602
diff
changeset
|
760 z80_context * context = vcontext; |
39d7d463ed5b
Get Z80 banked access sort of working again
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parents:
602
diff
changeset
|
761 |
39d7d463ed5b
Get Z80 banked access sort of working again
Michael Pavone <pavone@retrodev.com>
parents:
602
diff
changeset
|
762 context->bank_reg = (context->bank_reg >> 1 | value << 8) & 0x1FF; |
39d7d463ed5b
Get Z80 banked access sort of working again
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parents:
602
diff
changeset
|
763 if (context->bank_reg < 0x80) { |
39d7d463ed5b
Get Z80 banked access sort of working again
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parents:
602
diff
changeset
|
764 context->mem_pointers[1] = context->mem_pointers[2] + (context->bank_reg << 15); |
39d7d463ed5b
Get Z80 banked access sort of working again
Michael Pavone <pavone@retrodev.com>
parents:
602
diff
changeset
|
765 } else { |
39d7d463ed5b
Get Z80 banked access sort of working again
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parents:
602
diff
changeset
|
766 context->mem_pointers[1] = NULL; |
39d7d463ed5b
Get Z80 banked access sort of working again
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parents:
602
diff
changeset
|
767 } |
39d7d463ed5b
Get Z80 banked access sort of working again
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parents:
602
diff
changeset
|
768 |
592
4ff7bbb3943b
Get rest of emulator compiling again with Z80 core enabled
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590
diff
changeset
|
769 return context; |
4ff7bbb3943b
Get rest of emulator compiling again with Z80 core enabled
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parents:
590
diff
changeset
|
770 } |
4ff7bbb3943b
Get rest of emulator compiling again with Z80 core enabled
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parents:
590
diff
changeset
|
771 |
351
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
changeset
|
772 uint16_t read_sram_w(uint32_t address, m68k_context * context) |
2f264d2a60c2
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diff
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|
773 { |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
changeset
|
774 genesis_context * gen = context->system; |
2f264d2a60c2
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diff
changeset
|
775 address &= gen->save_ram_mask; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
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changeset
|
776 switch(gen->save_flags) |
2f264d2a60c2
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|
777 { |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
changeset
|
778 case RAM_FLAG_BOTH: |
2f264d2a60c2
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|
779 return gen->save_ram[address] << 8 | gen->save_ram[address+1]; |
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|
780 case RAM_FLAG_EVEN: |
2f264d2a60c2
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diff
changeset
|
781 return gen->save_ram[address >> 1] << 8 | 0xFF; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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changeset
|
782 case RAM_FLAG_ODD: |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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changeset
|
783 return gen->save_ram[address >> 1] | 0xFF00; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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|
784 } |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
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changeset
|
785 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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changeset
|
786 } |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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changeset
|
787 |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
changeset
|
788 uint8_t read_sram_b(uint32_t address, m68k_context * context) |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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changeset
|
789 { |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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changeset
|
790 genesis_context * gen = context->system; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
changeset
|
791 address &= gen->save_ram_mask; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
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changeset
|
792 switch(gen->save_flags) |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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changeset
|
793 { |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
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changeset
|
794 case RAM_FLAG_BOTH: |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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changeset
|
795 return gen->save_ram[address]; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
changeset
|
796 case RAM_FLAG_EVEN: |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
changeset
|
797 if (address & 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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changeset
|
798 return 0xFF; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
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changeset
|
799 } else { |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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changeset
|
800 return gen->save_ram[address >> 1]; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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changeset
|
801 } |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
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changeset
|
802 case RAM_FLAG_ODD: |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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parents:
346
diff
changeset
|
803 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
|
804 return gen->save_ram[address >> 1]; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
changeset
|
805 } else { |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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diff
changeset
|
806 return 0xFF; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
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changeset
|
807 } |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
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changeset
|
808 } |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
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changeset
|
809 return 0xFF;//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
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changeset
|
810 } |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
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changeset
|
811 |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
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changeset
|
812 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:
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changeset
|
813 { |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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parents:
346
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changeset
|
814 genesis_context * gen = context->system; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
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changeset
|
815 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>
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346
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changeset
|
816 address &= gen->save_ram_mask; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
changeset
|
817 switch(gen->save_flags) |
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
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changeset
|
818 { |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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parents:
346
diff
changeset
|
819 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
|
820 gen->save_ram[address] = value >> 8; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
changeset
|
821 gen->save_ram[address+1] = value; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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parents:
346
diff
changeset
|
822 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
|
823 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
|
824 gen->save_ram[address >> 1] = value >> 8; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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parents:
346
diff
changeset
|
825 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
|
826 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
|
827 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
|
828 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
|
829 } |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
830 } |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
831 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
|
832 } |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
833 |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
834 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
|
835 { |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
836 genesis_context * gen = context->system; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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parents:
346
diff
changeset
|
837 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
|
838 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
|
839 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
|
840 { |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
841 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
|
842 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
|
843 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
|
844 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
|
845 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
|
846 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
|
847 } |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
848 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
|
849 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
|
850 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
|
851 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
|
852 } |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
853 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
|
854 } |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
855 } |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
856 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
|
857 } |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
858 |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
859 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
|
860 { |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
861 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
|
862 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
|
863 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
|
864 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
|
865 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
|
866 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
|
867 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
|
868 } 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
|
869 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
|
870 } |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
871 } |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
872 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
|
873 } |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
874 |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
875 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
|
876 { |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
877 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
|
878 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
|
879 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
|
880 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
|
881 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
|
882 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
|
883 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
|
884 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
|
885 } else { |
2f264d2a60c2
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886 context->mem_pointers[2] = cart + 0x200000/2; |
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|
887 } |
2f264d2a60c2
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diff
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|
888 } |
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diff
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|
889 } |
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diff
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|
890 return context; |
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|
891 } |
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diff
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|
892 |
483
3e1573fa22cf
Implement turbo/slow motion feature that overclocks or underclocks the entire system at the push of a button
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diff
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|
893 void set_speed_percent(genesis_context * context, uint32_t percent) |
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diff
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|
894 { |
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482
diff
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|
895 uint32_t old_clock = context->master_clock; |
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Implement turbo/slow motion feature that overclocks or underclocks the entire system at the push of a button
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diff
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|
896 context->master_clock = ((uint64_t)context->normal_clock * (uint64_t)percent) / 100; |
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diff
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|
897 while (context->ym->current_cycle != context->psg->cycles) { |
3e1573fa22cf
Implement turbo/slow motion feature that overclocks or underclocks the entire system at the push of a button
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diff
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|
898 sync_sound(context, context->psg->cycles + MCLKS_PER_PSG); |
424
7e8e179116af
Add support for loading GST format savestates
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422
diff
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|
899 } |
483
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Implement turbo/slow motion feature that overclocks or underclocks the entire system at the push of a button
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482
diff
changeset
|
900 ym_adjust_master_clock(context->ym, context->master_clock); |
3e1573fa22cf
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482
diff
changeset
|
901 psg_adjust_master_clock(context->psg, context->master_clock); |
3e1573fa22cf
Implement turbo/slow motion feature that overclocks or underclocks the entire system at the push of a button
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diff
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|
902 } |
3e1573fa22cf
Implement turbo/slow motion feature that overclocks or underclocks the entire system at the push of a button
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482
diff
changeset
|
903 |
351
2f264d2a60c2
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346
diff
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|
904 #define ROM_END 0x1A4 |
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diff
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|
905 #define RAM_ID 0x1B0 |
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diff
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|
906 #define RAM_FLAGS 0x1B2 |
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346
diff
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|
907 #define RAM_START 0x1B4 |
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diff
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|
908 #define RAM_END 0x1B8 |
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diff
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|
909 #define MAX_MAP_CHUNKS (4+7+1) |
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346
diff
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|
910 #define RAM_FLAG_MASK 0x1800 |
2f264d2a60c2
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diff
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|
911 |
2f264d2a60c2
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346
diff
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|
912 const memmap_chunk static_map[] = { |
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346
diff
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|
913 {0, 0x400000, 0xFFFFFF, 0, MMAP_READ, cart, |
343
467bfa17004a
Mostly working runtime generation of memory map read/write functions
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342
diff
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|
914 NULL, NULL, NULL, NULL}, |
488
32f053ad9b02
Basic OpenGL rendering is working
Mike Pavone <pavone@retrodev.com>
parents:
487
diff
changeset
|
915 {0xE00000, 0x1000000, 0xFFFF, 0, MMAP_READ | MMAP_WRITE | MMAP_CODE, ram, |
343
467bfa17004a
Mostly working runtime generation of memory map read/write functions
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342
diff
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|
916 NULL, NULL, NULL, NULL}, |
467bfa17004a
Mostly working runtime generation of memory map read/write functions
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342
diff
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|
917 {0xC00000, 0xE00000, 0x1FFFFF, 0, 0, NULL, |
467bfa17004a
Mostly working runtime generation of memory map read/write functions
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342
diff
changeset
|
918 (read_16_fun)vdp_port_read, (write_16_fun)vdp_port_write, |
467bfa17004a
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342
diff
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|
919 (read_8_fun)vdp_port_read_b, (write_8_fun)vdp_port_write_b}, |
467bfa17004a
Mostly working runtime generation of memory map read/write functions
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342
diff
changeset
|
920 {0xA00000, 0xA12000, 0x1FFFF, 0, 0, NULL, |
467bfa17004a
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342
diff
changeset
|
921 (read_16_fun)io_read_w, (write_16_fun)io_write_w, |
467bfa17004a
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342
diff
changeset
|
922 (read_8_fun)io_read, (write_8_fun)io_write} |
467bfa17004a
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diff
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|
923 }; |
351
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
changeset
|
924 |
2f264d2a60c2
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346
diff
changeset
|
925 char * sram_filename; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
changeset
|
926 genesis_context * genesis; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
changeset
|
927 void save_sram() |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
changeset
|
928 { |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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parents:
346
diff
changeset
|
929 FILE * f = fopen(sram_filename, "wb"); |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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parents:
346
diff
changeset
|
930 if (!f) { |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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parents:
346
diff
changeset
|
931 fprintf(stderr, "Failed to open SRAM file %s for writing\n", sram_filename); |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
932 return; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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parents:
346
diff
changeset
|
933 } |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
934 uint32_t size = genesis->save_ram_mask+1; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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parents:
346
diff
changeset
|
935 if (genesis->save_flags != RAM_FLAG_BOTH) { |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
936 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
|
937 } |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
938 fwrite(genesis->save_ram, 1, size, f); |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
939 fclose(f); |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
940 printf("Saved SRAM to %s\n", sram_filename); |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
941 } |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
942 |
515
1495179d6737
Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents:
510
diff
changeset
|
943 void init_run_cpu(genesis_context * gen, FILE * address_log, char * statefile, uint8_t * debugger) |
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
|
944 { |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
945 m68k_context context; |
569
9b7fcf748be0
Rename x86_68k_options and m68k_to_x86.h to m68k_options and m68k_core.h respectively
Michael Pavone <pavone@retrodev.com>
parents:
565
diff
changeset
|
946 m68k_options opts; |
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
|
947 gen->m68k = &context; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
948 memmap_chunk memmap[MAX_MAP_CHUNKS]; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
949 uint32_t num_chunks; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
950 void * initial_mapped = NULL; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
951 gen->save_ram = NULL; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
952 //TODO: Handle carts larger than 4MB |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
953 //TODO: Handle non-standard mappers |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
954 uint32_t size; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
955 if ((cart[RAM_ID/2] & 0xFF) == 'A' && (cart[RAM_ID/2] >> 8) == 'R') { |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
956 //Cart has 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
|
957 uint32_t rom_end = ((cart[ROM_END/2] << 16) | cart[ROM_END/2+1]) + 1; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
958 uint32_t ram_start = (cart[RAM_START/2] << 16) | cart[RAM_START/2+1]; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
959 uint32_t ram_end = (cart[RAM_END/2] << 16) | cart[RAM_END/2+1]; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
960 uint16_t ram_flags = cart[RAM_FLAGS/2]; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
961 gen->save_flags = ram_flags & RAM_FLAG_MASK; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
962 memset(memmap, 0, sizeof(memmap_chunk)*2); |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
963 if (ram_start >= rom_end) { |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
964 memmap[0].end = rom_end; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
965 memmap[0].mask = 0xFFFFFF; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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parents:
346
diff
changeset
|
966 memmap[0].flags = MMAP_READ; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
967 memmap[0].buffer = cart; |
488
32f053ad9b02
Basic OpenGL rendering is working
Mike Pavone <pavone@retrodev.com>
parents:
487
diff
changeset
|
968 |
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
|
969 ram_start &= 0xFFFFFE; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
970 ram_end |= 1; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
971 memmap[1].start = ram_start; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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parents:
346
diff
changeset
|
972 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
|
973 ram_end += 1; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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parents:
346
diff
changeset
|
974 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
|
975 memmap[1].flags = MMAP_READ | MMAP_WRITE; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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parents:
346
diff
changeset
|
976 size = ram_end-ram_start; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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parents:
346
diff
changeset
|
977 if ((ram_flags & RAM_FLAG_MASK) == RAM_FLAG_ODD) { |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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parents:
346
diff
changeset
|
978 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
|
979 size /= 2; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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parents:
346
diff
changeset
|
980 } else if((ram_flags & RAM_FLAG_MASK) == RAM_FLAG_EVEN) { |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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parents:
346
diff
changeset
|
981 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
|
982 size /= 2; |
2f264d2a60c2
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983 } |
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|
984 memmap[1].buffer = gen->save_ram = malloc(size); |
488
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|
985 |
351
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|
986 memcpy(memmap+2, static_map+1, sizeof(static_map)-sizeof(static_map[0])); |
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987 num_chunks = sizeof(static_map)/sizeof(memmap_chunk)+1; |
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|
988 } else { |
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|
989 //Assume the standard Sega mapper for now |
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|
990 memmap[0].end = 0x200000; |
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|
991 memmap[0].mask = 0xFFFFFF; |
2f264d2a60c2
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diff
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|
992 memmap[0].flags = MMAP_READ; |
2f264d2a60c2
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|
993 memmap[0].buffer = cart; |
488
32f053ad9b02
Basic OpenGL rendering is working
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487
diff
changeset
|
994 |
351
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|
995 memmap[1].start = 0x200000; |
2f264d2a60c2
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|
996 memmap[1].end = 0x400000; |
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|
997 memmap[1].mask = 0x1FFFFF; |
2f264d2a60c2
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|
998 ram_start &= 0xFFFFFE; |
2f264d2a60c2
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|
999 ram_end |= 1; |
2f264d2a60c2
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|
1000 gen->save_ram_mask = ram_end-ram_start; |
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diff
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|
1001 memmap[1].flags = MMAP_READ | MMAP_PTR_IDX | MMAP_FUNC_NULL; |
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Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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|
1002 memmap[1].ptr_index = 2; |
2f264d2a60c2
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|
1003 memmap[1].read_16 = (read_16_fun)read_sram_w;//these will only be called when mem_pointers[2] == NULL |
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|
1004 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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|
1005 memmap[1].write_16 = (write_16_fun)write_sram_area_w;//these will be called all writes to the area |
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|
1006 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
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changeset
|
1007 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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|
1008 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
|
1009 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
|
1010 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
|
1011 memmap[num_chunks].end = 0xA13100; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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parents:
346
diff
changeset
|
1012 memmap[num_chunks].mask = 0xFF; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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parents:
346
diff
changeset
|
1013 memmap[num_chunks].write_16 = (write_16_fun)write_bank_reg_w; |
488
32f053ad9b02
Basic OpenGL rendering is working
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parents:
487
diff
changeset
|
1014 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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parents:
346
diff
changeset
|
1015 num_chunks++; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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parents:
346
diff
changeset
|
1016 ram_end++; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
changeset
|
1017 size = ram_end-ram_start; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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parents:
346
diff
changeset
|
1018 if ((ram_flags & RAM_FLAG_MASK) != RAM_FLAG_BOTH) { |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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parents:
346
diff
changeset
|
1019 size /= 2; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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diff
changeset
|
1020 } |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
changeset
|
1021 gen->save_ram = malloc(size); |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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parents:
346
diff
changeset
|
1022 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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diff
changeset
|
1023 } |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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parents:
346
diff
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|
1024 } else { |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
changeset
|
1025 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
|
1026 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
|
1027 } |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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parents:
346
diff
changeset
|
1028 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
|
1029 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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parents:
346
diff
changeset
|
1030 FILE * f = fopen(sram_filename, "rb"); |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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parents:
346
diff
changeset
|
1031 if (f) { |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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parents:
346
diff
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|
1032 uint32_t read = fread(gen->save_ram, 1, size, f); |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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parents:
346
diff
changeset
|
1033 fclose(f); |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
1034 if (read > 0) { |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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parents:
346
diff
changeset
|
1035 printf("Loaded SRAM from %s\n", sram_filename); |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
changeset
|
1036 } |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
changeset
|
1037 } |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
changeset
|
1038 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
|
1039 } |
570
76bba9ffe351
Initial stab at separating the generic parts of the 68K core from the host-cpu specific parts.
Michael Pavone <pavone@retrodev.com>
parents:
569
diff
changeset
|
1040 init_m68k_opts(&opts, memmap, num_chunks); |
211 | 1041 opts.address_log = address_log; |
558
dc9f178085a0
Use a typedef code_ptr in place of uint8_t * in 68K core to better support host instruction sets with different instruction word sizes. Make x86_68k_options contain a cpu_options so that gen_mem_fun can eventually be shared with the Z80 core.
Mike Pavone <pavone@retrodev.com>
parents:
548
diff
changeset
|
1042 init_68k_context(&context, opts.gen.native_code_map, &opts); |
488
32f053ad9b02
Basic OpenGL rendering is working
Mike Pavone <pavone@retrodev.com>
parents:
487
diff
changeset
|
1043 |
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
|
1044 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
|
1045 context.system = gen; |
211 | 1046 //cartridge ROM |
1047 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
|
1048 context.target_cycle = context.sync_cycle = mclks_per_frame/MCLKS_PER_68K; |
211 | 1049 //work RAM |
1050 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
|
1051 //save RAM/map |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
changeset
|
1052 context.mem_pointers[2] = initial_mapped; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
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346
diff
changeset
|
1053 context.mem_pointers[3] = (uint16_t *)gen->save_ram; |
211 | 1054 uint32_t address; |
1055 address = cart[2] << 16 | cart[3]; | |
1056 translate_m68k_stream(address, &context); | |
424
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1057 if (statefile) { |
7e8e179116af
Add support for loading GST format savestates
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parents:
422
diff
changeset
|
1058 uint32_t pc = load_gst(gen, statefile); |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1059 if (!pc) { |
451
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
447
diff
changeset
|
1060 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
|
1061 exit(1); |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1062 } |
451
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
447
diff
changeset
|
1063 printf("Loaded %s\n", statefile); |
515
1495179d6737
Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents:
510
diff
changeset
|
1064 if (debugger) { |
1495179d6737
Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents:
510
diff
changeset
|
1065 insert_breakpoint(&context, pc, debugger); |
424
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1066 } |
451
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
447
diff
changeset
|
1067 adjust_int_cycle(gen->m68k, gen->vdp); |
565
9324f721efa6
Add a separate flag/define for disabling the Z80 at compile time to ease refactoring
Michael Pavone <pavone@retrodev.com>
parents:
558
diff
changeset
|
1068 #ifndef NO_Z80 |
451
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
447
diff
changeset
|
1069 gen->z80->native_pc = z80_get_native_address_trans(gen->z80, gen->z80->pc); |
548
a3afee2271ce
Initial work on the x86-32 target
Michael Pavone <pavone@retrodev.com>
parents:
534
diff
changeset
|
1070 #endif |
424
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1071 start_68k_context(&context, pc); |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1072 } else { |
515
1495179d6737
Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents:
510
diff
changeset
|
1073 if (debugger) { |
1495179d6737
Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents:
510
diff
changeset
|
1074 insert_breakpoint(&context, address, debugger); |
424
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1075 } |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1076 m68k_reset(&context); |
211 | 1077 } |
1078 } | |
1079 | |
340
58a085cfc6bd
Set window title based on ROM header name
Mike Pavone <pavone@retrodev.com>
parents:
338
diff
changeset
|
1080 char title[64]; |
58a085cfc6bd
Set window title based on ROM header name
Mike Pavone <pavone@retrodev.com>
parents:
338
diff
changeset
|
1081 |
58a085cfc6bd
Set window title based on ROM header name
Mike Pavone <pavone@retrodev.com>
parents:
338
diff
changeset
|
1082 #define TITLE_START 0x150 |
58a085cfc6bd
Set window title based on ROM header name
Mike Pavone <pavone@retrodev.com>
parents:
338
diff
changeset
|
1083 #define TITLE_END (TITLE_START+48) |
58a085cfc6bd
Set window title based on ROM header name
Mike Pavone <pavone@retrodev.com>
parents:
338
diff
changeset
|
1084 |
58a085cfc6bd
Set window title based on ROM header name
Mike Pavone <pavone@retrodev.com>
parents:
338
diff
changeset
|
1085 void update_title() |
58a085cfc6bd
Set window title based on ROM header name
Mike Pavone <pavone@retrodev.com>
parents:
338
diff
changeset
|
1086 { |
58a085cfc6bd
Set window title based on ROM header name
Mike Pavone <pavone@retrodev.com>
parents:
338
diff
changeset
|
1087 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
|
1088 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
|
1089 { |
58a085cfc6bd
Set window title based on ROM header name
Mike Pavone <pavone@retrodev.com>
parents:
338
diff
changeset
|
1090 last--; |
58a085cfc6bd
Set window title based on ROM header name
Mike Pavone <pavone@retrodev.com>
parents:
338
diff
changeset
|
1091 } |
58a085cfc6bd
Set window title based on ROM header name
Mike Pavone <pavone@retrodev.com>
parents:
338
diff
changeset
|
1092 uint16_t *start = cart + TITLE_START/2; |
58a085cfc6bd
Set window title based on ROM header name
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parents:
338
diff
changeset
|
1093 char *cur = title; |
58a085cfc6bd
Set window title based on ROM header name
Mike Pavone <pavone@retrodev.com>
parents:
338
diff
changeset
|
1094 char last_char = ' '; |
58a085cfc6bd
Set window title based on ROM header name
Mike Pavone <pavone@retrodev.com>
parents:
338
diff
changeset
|
1095 for (; start != last; start++) |
58a085cfc6bd
Set window title based on ROM header name
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parents:
338
diff
changeset
|
1096 { |
58a085cfc6bd
Set window title based on ROM header name
Mike Pavone <pavone@retrodev.com>
parents:
338
diff
changeset
|
1097 if ((last_char != ' ' || (*start >> 8) != ' ') && (*start >> 8) < 0x80) { |
58a085cfc6bd
Set window title based on ROM header name
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parents:
338
diff
changeset
|
1098 *(cur++) = *start >> 8; |
58a085cfc6bd
Set window title based on ROM header name
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parents:
338
diff
changeset
|
1099 last_char = *start >> 8; |
58a085cfc6bd
Set window title based on ROM header name
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parents:
338
diff
changeset
|
1100 } |
58a085cfc6bd
Set window title based on ROM header name
Mike Pavone <pavone@retrodev.com>
parents:
338
diff
changeset
|
1101 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
|
1102 *(cur++) = *start; |
58a085cfc6bd
Set window title based on ROM header name
Mike Pavone <pavone@retrodev.com>
parents:
338
diff
changeset
|
1103 last_char = *start & 0xFF; |
58a085cfc6bd
Set window title based on ROM header name
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parents:
338
diff
changeset
|
1104 } |
58a085cfc6bd
Set window title based on ROM header name
Mike Pavone <pavone@retrodev.com>
parents:
338
diff
changeset
|
1105 } |
58a085cfc6bd
Set window title based on ROM header name
Mike Pavone <pavone@retrodev.com>
parents:
338
diff
changeset
|
1106 *(cur++) = *start >> 8; |
58a085cfc6bd
Set window title based on ROM header name
Mike Pavone <pavone@retrodev.com>
parents:
338
diff
changeset
|
1107 if ((*start & 0xFF) != ' ') { |
58a085cfc6bd
Set window title based on ROM header name
Mike Pavone <pavone@retrodev.com>
parents:
338
diff
changeset
|
1108 *(cur++) = *start; |
58a085cfc6bd
Set window title based on ROM header name
Mike Pavone <pavone@retrodev.com>
parents:
338
diff
changeset
|
1109 } |
58a085cfc6bd
Set window title based on ROM header name
Mike Pavone <pavone@retrodev.com>
parents:
338
diff
changeset
|
1110 strcpy(cur, " - BlastEm"); |
58a085cfc6bd
Set window title based on ROM header name
Mike Pavone <pavone@retrodev.com>
parents:
338
diff
changeset
|
1111 } |
58a085cfc6bd
Set window title based on ROM header name
Mike Pavone <pavone@retrodev.com>
parents:
338
diff
changeset
|
1112 |
341
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1113 #define REGION_START 0x1F0 |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1114 |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1115 int detect_specific_region(char region) |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1116 { |
346
aff29d50afd5
Fix a region detection bug
Mike Pavone <pavone@retrodev.com>
parents:
345
diff
changeset
|
1117 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
|
1118 } |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1119 |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1120 void detect_region() |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1121 { |
343
467bfa17004a
Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents:
342
diff
changeset
|
1122 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
|
1123 version_reg = NO_DISK | USA; |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1124 } else if (detect_specific_region('J')) { |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1125 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
|
1126 } 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
|
1127 version_reg = NO_DISK | EUR; |
434
f0631c85a90b
Read default region from config file
Mike Pavone <pavone@retrodev.com>
parents:
433
diff
changeset
|
1128 } else { |
f0631c85a90b
Read default region from config file
Mike Pavone <pavone@retrodev.com>
parents:
433
diff
changeset
|
1129 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
|
1130 if (def_region) { |
f0631c85a90b
Read default region from config file
Mike Pavone <pavone@retrodev.com>
parents:
433
diff
changeset
|
1131 switch(*def_region) |
f0631c85a90b
Read default region from config file
Mike Pavone <pavone@retrodev.com>
parents:
433
diff
changeset
|
1132 { |
f0631c85a90b
Read default region from config file
Mike Pavone <pavone@retrodev.com>
parents:
433
diff
changeset
|
1133 case 'j': |
f0631c85a90b
Read default region from config file
Mike Pavone <pavone@retrodev.com>
parents:
433
diff
changeset
|
1134 case 'J': |
f0631c85a90b
Read default region from config file
Mike Pavone <pavone@retrodev.com>
parents:
433
diff
changeset
|
1135 version_reg = NO_DISK | JAP; |
f0631c85a90b
Read default region from config file
Mike Pavone <pavone@retrodev.com>
parents:
433
diff
changeset
|
1136 break; |
f0631c85a90b
Read default region from config file
Mike Pavone <pavone@retrodev.com>
parents:
433
diff
changeset
|
1137 case 'u': |
f0631c85a90b
Read default region from config file
Mike Pavone <pavone@retrodev.com>
parents:
433
diff
changeset
|
1138 case 'U': |
f0631c85a90b
Read default region from config file
Mike Pavone <pavone@retrodev.com>
parents:
433
diff
changeset
|
1139 version_reg = NO_DISK | USA; |
f0631c85a90b
Read default region from config file
Mike Pavone <pavone@retrodev.com>
parents:
433
diff
changeset
|
1140 break; |
f0631c85a90b
Read default region from config file
Mike Pavone <pavone@retrodev.com>
parents:
433
diff
changeset
|
1141 case 'e': |
f0631c85a90b
Read default region from config file
Mike Pavone <pavone@retrodev.com>
parents:
433
diff
changeset
|
1142 case 'E': |
f0631c85a90b
Read default region from config file
Mike Pavone <pavone@retrodev.com>
parents:
433
diff
changeset
|
1143 version_reg = NO_DISK | EUR; |
f0631c85a90b
Read default region from config file
Mike Pavone <pavone@retrodev.com>
parents:
433
diff
changeset
|
1144 break; |
f0631c85a90b
Read default region from config file
Mike Pavone <pavone@retrodev.com>
parents:
433
diff
changeset
|
1145 } |
f0631c85a90b
Read default region from config file
Mike Pavone <pavone@retrodev.com>
parents:
433
diff
changeset
|
1146 } |
341
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1147 } |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1148 } |
590
ea80559c67cb
WIP effort to update z80 core for code gen changes
Michael Pavone <pavone@retrodev.com>
parents:
570
diff
changeset
|
1149 #ifndef NO_Z80 |
ea80559c67cb
WIP effort to update z80 core for code gen changes
Michael Pavone <pavone@retrodev.com>
parents:
570
diff
changeset
|
1150 const memmap_chunk z80_map[] = { |
604
39d7d463ed5b
Get Z80 banked access sort of working again
Michael Pavone <pavone@retrodev.com>
parents:
602
diff
changeset
|
1151 { 0x0000, 0x4000, 0x1FFF, 0, MMAP_READ | MMAP_WRITE | MMAP_CODE, z80_ram, NULL, NULL, NULL, NULL }, |
606
cf73b72c6d1e
Fix mask for bank area in Z80 memory map
Michael Pavone <pavone@retrodev.com>
parents:
604
diff
changeset
|
1152 { 0x8000, 0x10000, 0x7FFF, 1, MMAP_READ | MMAP_PTR_IDX | MMAP_FUNC_NULL | MMAP_BYTESWAP, NULL, NULL, NULL, z80_read_bank, z80_write_bank}, |
604
39d7d463ed5b
Get Z80 banked access sort of working again
Michael Pavone <pavone@retrodev.com>
parents:
602
diff
changeset
|
1153 { 0x4000, 0x6000, 0x0003, 0, 0, NULL, NULL, NULL, z80_read_ym, z80_write_ym}, |
39d7d463ed5b
Get Z80 banked access sort of working again
Michael Pavone <pavone@retrodev.com>
parents:
602
diff
changeset
|
1154 { 0x6000, 0x6100, 0xFFFF, 0, 0, NULL, NULL, NULL, NULL, z80_write_bank_reg}, |
39d7d463ed5b
Get Z80 banked access sort of working again
Michael Pavone <pavone@retrodev.com>
parents:
602
diff
changeset
|
1155 { 0x7F00, 0x8000, 0x00FF, 0, 0, NULL, NULL, NULL, z80_vdp_port_read, z80_vdp_port_write} |
590
ea80559c67cb
WIP effort to update z80 core for code gen changes
Michael Pavone <pavone@retrodev.com>
parents:
570
diff
changeset
|
1156 }; |
ea80559c67cb
WIP effort to update z80 core for code gen changes
Michael Pavone <pavone@retrodev.com>
parents:
570
diff
changeset
|
1157 #endif |
341
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1158 |
88
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1159 int main(int argc, char ** argv) |
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1160 { |
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1161 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
|
1162 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
|
1163 return 1; |
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1164 } |
496
6fc71114d145
Extract function to determine executable directory from load_config so it can be used elsewhere
Mike Pavone <pavone@retrodev.com>
parents:
488
diff
changeset
|
1165 set_exe_str(argv[0]); |
6fc71114d145
Extract function to determine executable directory from load_config so it can be used elsewhere
Mike Pavone <pavone@retrodev.com>
parents:
488
diff
changeset
|
1166 config = load_config(); |
341
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1167 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
|
1168 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
|
1169 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
|
1170 int debug = 0; |
407
c3abc4ada43d
Add support for logging YM2612 channels to WAVE files
Mike Pavone <pavone@retrodev.com>
parents:
405
diff
changeset
|
1171 int ym_log = 0; |
463
a1d298119153
Added -h help text option
Mike Pavone <pavone@retrodev.com>
parents:
458
diff
changeset
|
1172 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
|
1173 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
|
1174 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
|
1175 FILE *address_log = NULL; |
425
8b3ae850d1c4
Forgot to null initialize the statfile pointer
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
1176 char * statefile = NULL; |
515
1495179d6737
Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents:
510
diff
changeset
|
1177 uint8_t * debuggerfun = NULL; |
501
e1355aa80f4d
Use OpenGL by default. Add OpenGL switch to help text
Mike Pavone <pavone@retrodev.com>
parents:
496
diff
changeset
|
1178 uint8_t fullscreen = 0, use_gl = 1; |
463
a1d298119153
Added -h help text option
Mike Pavone <pavone@retrodev.com>
parents:
458
diff
changeset
|
1179 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
|
1180 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
|
1181 switch(argv[i][1]) { |
505
b7b7a1cab44a
The local clone on my laptop got messed up and some changes had not been pushed. This commit represents the status of the working copy from that clone. It unfortunately contains some changes that I did not intend to commit yet, but this seems like the best option at the moment.
Michael Pavone <pavone@retrodev.com>
parents:
501
diff
changeset
|
1182 case 'b': |
b7b7a1cab44a
The local clone on my laptop got messed up and some changes had not been pushed. This commit represents the status of the working copy from that clone. It unfortunately contains some changes that I did not intend to commit yet, but this seems like the best option at the moment.
Michael Pavone <pavone@retrodev.com>
parents:
501
diff
changeset
|
1183 i++; |
b7b7a1cab44a
The local clone on my laptop got messed up and some changes had not been pushed. This commit represents the status of the working copy from that clone. It unfortunately contains some changes that I did not intend to commit yet, but this seems like the best option at the moment.
Michael Pavone <pavone@retrodev.com>
parents:
501
diff
changeset
|
1184 if (i >= argc) { |
b7b7a1cab44a
The local clone on my laptop got messed up and some changes had not been pushed. This commit represents the status of the working copy from that clone. It unfortunately contains some changes that I did not intend to commit yet, but this seems like the best option at the moment.
Michael Pavone <pavone@retrodev.com>
parents:
501
diff
changeset
|
1185 fputs("-b must be followed by a frame count\n", stderr); |
b7b7a1cab44a
The local clone on my laptop got messed up and some changes had not been pushed. This commit represents the status of the working copy from that clone. It unfortunately contains some changes that I did not intend to commit yet, but this seems like the best option at the moment.
Michael Pavone <pavone@retrodev.com>
parents:
501
diff
changeset
|
1186 return 1; |
b7b7a1cab44a
The local clone on my laptop got messed up and some changes had not been pushed. This commit represents the status of the working copy from that clone. It unfortunately contains some changes that I did not intend to commit yet, but this seems like the best option at the moment.
Michael Pavone <pavone@retrodev.com>
parents:
501
diff
changeset
|
1187 } |
b7b7a1cab44a
The local clone on my laptop got messed up and some changes had not been pushed. This commit represents the status of the working copy from that clone. It unfortunately contains some changes that I did not intend to commit yet, but this seems like the best option at the moment.
Michael Pavone <pavone@retrodev.com>
parents:
501
diff
changeset
|
1188 headless = 1; |
b7b7a1cab44a
The local clone on my laptop got messed up and some changes had not been pushed. This commit represents the status of the working copy from that clone. It unfortunately contains some changes that I did not intend to commit yet, but this seems like the best option at the moment.
Michael Pavone <pavone@retrodev.com>
parents:
501
diff
changeset
|
1189 exit_after = atoi(argv[i]); |
b7b7a1cab44a
The local clone on my laptop got messed up and some changes had not been pushed. This commit represents the status of the working copy from that clone. It unfortunately contains some changes that I did not intend to commit yet, but this seems like the best option at the moment.
Michael Pavone <pavone@retrodev.com>
parents:
501
diff
changeset
|
1190 break; |
184
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1191 case 'd': |
515
1495179d6737
Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents:
510
diff
changeset
|
1192 debuggerfun = (uint8_t *)debugger; |
1495179d6737
Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents:
510
diff
changeset
|
1193 break; |
1495179d6737
Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents:
510
diff
changeset
|
1194 case 'D': |
1495179d6737
Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents:
510
diff
changeset
|
1195 gdb_remote_init(); |
1495179d6737
Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents:
510
diff
changeset
|
1196 debuggerfun = (uint8_t *)gdb_debug_enter; |
184
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1197 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
|
1198 case 'f': |
444
cc754a309ead
Add fullscreen support and add a keybinding for exiting the emulator
Mike Pavone <pavone@retrodev.com>
parents:
434
diff
changeset
|
1199 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
|
1200 break; |
488
32f053ad9b02
Basic OpenGL rendering is working
Mike Pavone <pavone@retrodev.com>
parents:
487
diff
changeset
|
1201 case 'g': |
501
e1355aa80f4d
Use OpenGL by default. Add OpenGL switch to help text
Mike Pavone <pavone@retrodev.com>
parents:
496
diff
changeset
|
1202 use_gl = 0; |
488
32f053ad9b02
Basic OpenGL rendering is working
Mike Pavone <pavone@retrodev.com>
parents:
487
diff
changeset
|
1203 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
|
1204 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
|
1205 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
|
1206 break; |
464 | 1207 case 'v': |
1208 printf("blastem %s\n", BLASTEM_VERSION); | |
1209 return 0; | |
1210 break; | |
265
c6d12878ea93
Add -n flag for disabling the Z80 core
Mike Pavone <pavone@retrodev.com>
parents:
264
diff
changeset
|
1211 case 'n': |
c6d12878ea93
Add -n flag for disabling the Z80 core
Mike Pavone <pavone@retrodev.com>
parents:
264
diff
changeset
|
1212 z80_enabled = 0; |
c6d12878ea93
Add -n flag for disabling the Z80 core
Mike Pavone <pavone@retrodev.com>
parents:
264
diff
changeset
|
1213 break; |
341
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1214 case 'r': |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1215 i++; |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1216 if (i >= argc) { |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1217 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
|
1218 return 1; |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1219 } |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1220 switch (argv[i][0]) |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1221 { |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1222 case 'j': |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1223 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
|
1224 force_version = NO_DISK | JAP; |
341
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1225 break; |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1226 case 'u': |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1227 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
|
1228 force_version = NO_DISK | USA; |
341
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1229 break; |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1230 case 'e': |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1231 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
|
1232 force_version = NO_DISK | EUR; |
341
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1233 break; |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1234 default: |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1235 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
|
1236 return 1; |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1237 } |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1238 break; |
424
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1239 case 's': |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1240 i++; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1241 if (i >= argc) { |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1242 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
|
1243 return 1; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1244 } |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1245 statefile = argv[i]; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1246 break; |
407
c3abc4ada43d
Add support for logging YM2612 channels to WAVE files
Mike Pavone <pavone@retrodev.com>
parents:
405
diff
changeset
|
1247 case 'y': |
c3abc4ada43d
Add support for logging YM2612 channels to WAVE files
Mike Pavone <pavone@retrodev.com>
parents:
405
diff
changeset
|
1248 ym_log = 1; |
c3abc4ada43d
Add support for logging YM2612 channels to WAVE files
Mike Pavone <pavone@retrodev.com>
parents:
405
diff
changeset
|
1249 break; |
463
a1d298119153
Added -h help text option
Mike Pavone <pavone@retrodev.com>
parents:
458
diff
changeset
|
1250 case 'h': |
a1d298119153
Added -h help text option
Mike Pavone <pavone@retrodev.com>
parents:
458
diff
changeset
|
1251 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
|
1252 "Usage: blastem [OPTIONS] ROMFILE [WIDTH] [HEIGHT]\n" |
463
a1d298119153
Added -h help text option
Mike Pavone <pavone@retrodev.com>
parents:
458
diff
changeset
|
1253 "Options:\n" |
a1d298119153
Added -h help text option
Mike Pavone <pavone@retrodev.com>
parents:
458
diff
changeset
|
1254 " -h Print this help text\n" |
a1d298119153
Added -h help text option
Mike Pavone <pavone@retrodev.com>
parents:
458
diff
changeset
|
1255 " -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
|
1256 " -f Start in fullscreen mode\n" |
501
e1355aa80f4d
Use OpenGL by default. Add OpenGL switch to help text
Mike Pavone <pavone@retrodev.com>
parents:
496
diff
changeset
|
1257 " -g Disable OpenGL rendering\n" |
463
a1d298119153
Added -h help text option
Mike Pavone <pavone@retrodev.com>
parents:
458
diff
changeset
|
1258 " -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
|
1259 " -d Enter debugger on startup\n" |
a1d298119153
Added -h help text option
Mike Pavone <pavone@retrodev.com>
parents:
458
diff
changeset
|
1260 " -n Disable Z80\n" |
501
e1355aa80f4d
Use OpenGL by default. Add OpenGL switch to help text
Mike Pavone <pavone@retrodev.com>
parents:
496
diff
changeset
|
1261 " -v Display version number and exit\n" |
463
a1d298119153
Added -h help text option
Mike Pavone <pavone@retrodev.com>
parents:
458
diff
changeset
|
1262 " -l Log 68K code addresses (useful for assemblers)\n" |
a1d298119153
Added -h help text option
Mike Pavone <pavone@retrodev.com>
parents:
458
diff
changeset
|
1263 " -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
|
1264 ); |
a1d298119153
Added -h help text option
Mike Pavone <pavone@retrodev.com>
parents:
458
diff
changeset
|
1265 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
|
1266 default: |
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
1267 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
|
1268 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
|
1269 } |
463
a1d298119153
Added -h help text option
Mike Pavone <pavone@retrodev.com>
parents:
458
diff
changeset
|
1270 } else if (!loaded) { |
a1d298119153
Added -h help text option
Mike Pavone <pavone@retrodev.com>
parents:
458
diff
changeset
|
1271 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
|
1272 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
|
1273 return 1; |
a1d298119153
Added -h help text option
Mike Pavone <pavone@retrodev.com>
parents:
458
diff
changeset
|
1274 } |
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
|
1275 romfname = argv[i]; |
463
a1d298119153
Added -h help text option
Mike Pavone <pavone@retrodev.com>
parents:
458
diff
changeset
|
1276 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
|
1277 } 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
|
1278 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
|
1279 } 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
|
1280 height = atoi(argv[i]); |
88
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1281 } |
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1282 } |
463
a1d298119153
Added -h help text option
Mike Pavone <pavone@retrodev.com>
parents:
458
diff
changeset
|
1283 if (!loaded) { |
a1d298119153
Added -h help text option
Mike Pavone <pavone@retrodev.com>
parents:
458
diff
changeset
|
1284 fputs("You must specify a ROM filename!\n", stderr); |
a1d298119153
Added -h help text option
Mike Pavone <pavone@retrodev.com>
parents:
458
diff
changeset
|
1285 return 1; |
a1d298119153
Added -h help text option
Mike Pavone <pavone@retrodev.com>
parents:
458
diff
changeset
|
1286 } |
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
|
1287 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
|
1288 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
|
1289 } |
340
58a085cfc6bd
Set window title based on ROM header name
Mike Pavone <pavone@retrodev.com>
parents:
338
diff
changeset
|
1290 update_title(); |
433
ed4d0017c041
Read default render width from config file
Mike Pavone <pavone@retrodev.com>
parents:
430
diff
changeset
|
1291 int def_width = 0; |
ed4d0017c041
Read default render width from config file
Mike Pavone <pavone@retrodev.com>
parents:
430
diff
changeset
|
1292 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
|
1293 if (config_width) { |
ed4d0017c041
Read default render width from config file
Mike Pavone <pavone@retrodev.com>
parents:
430
diff
changeset
|
1294 def_width = atoi(config_width); |
ed4d0017c041
Read default render width from config file
Mike Pavone <pavone@retrodev.com>
parents:
430
diff
changeset
|
1295 } |
ed4d0017c041
Read default render width from config file
Mike Pavone <pavone@retrodev.com>
parents:
430
diff
changeset
|
1296 if (!def_width) { |
ed4d0017c041
Read default render width from config file
Mike Pavone <pavone@retrodev.com>
parents:
430
diff
changeset
|
1297 def_width = 640; |
ed4d0017c041
Read default render width from config file
Mike Pavone <pavone@retrodev.com>
parents:
430
diff
changeset
|
1298 } |
ed4d0017c041
Read default render width from config file
Mike Pavone <pavone@retrodev.com>
parents:
430
diff
changeset
|
1299 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
|
1300 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
|
1301 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
|
1302 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
|
1303 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
|
1304 fps = 50; |
15dd6418fe67
Initial PSG support. Mostly works, noise channel is borked though.
Mike Pavone <pavone@retrodev.com>
parents:
351
diff
changeset
|
1305 } |
15dd6418fe67
Initial PSG support. Mostly works, noise channel is borked though.
Mike Pavone <pavone@retrodev.com>
parents:
351
diff
changeset
|
1306 if (!headless) { |
488
32f053ad9b02
Basic OpenGL rendering is working
Mike Pavone <pavone@retrodev.com>
parents:
487
diff
changeset
|
1307 render_init(width, height, title, fps, fullscreen, use_gl); |
342
13f994c88c34
Get frame time correct and frame rate sort of correct for EUR region
Mike Pavone <pavone@retrodev.com>
parents:
341
diff
changeset
|
1308 } |
88
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1309 vdp_context v_context; |
483
3e1573fa22cf
Implement turbo/slow motion feature that overclocks or underclocks the entire system at the push of a button
Mike Pavone <pavone@retrodev.com>
parents:
482
diff
changeset
|
1310 genesis_context gen; |
3e1573fa22cf
Implement turbo/slow motion feature that overclocks or underclocks the entire system at the push of a button
Mike Pavone <pavone@retrodev.com>
parents:
482
diff
changeset
|
1311 memset(&gen, 0, sizeof(gen)); |
3e1573fa22cf
Implement turbo/slow motion feature that overclocks or underclocks the entire system at the push of a button
Mike Pavone <pavone@retrodev.com>
parents:
482
diff
changeset
|
1312 gen.master_clock = gen.normal_clock = fps == 60 ? MCLKS_NTSC : MCLKS_PAL; |
488
32f053ad9b02
Basic OpenGL rendering is working
Mike Pavone <pavone@retrodev.com>
parents:
487
diff
changeset
|
1313 |
88
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1314 init_vdp_context(&v_context); |
488
32f053ad9b02
Basic OpenGL rendering is working
Mike Pavone <pavone@retrodev.com>
parents:
487
diff
changeset
|
1315 |
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
|
1316 ym2612_context y_context; |
483
3e1573fa22cf
Implement turbo/slow motion feature that overclocks or underclocks the entire system at the push of a button
Mike Pavone <pavone@retrodev.com>
parents:
482
diff
changeset
|
1317 ym_init(&y_context, render_sample_rate(), gen.master_clock, MCLKS_PER_YM, render_audio_buffer(), ym_log ? YM_OPT_WAVE_LOG : 0); |
488
32f053ad9b02
Basic OpenGL rendering is working
Mike Pavone <pavone@retrodev.com>
parents:
487
diff
changeset
|
1318 |
354
15dd6418fe67
Initial PSG support. Mostly works, noise channel is borked though.
Mike Pavone <pavone@retrodev.com>
parents:
351
diff
changeset
|
1319 psg_context p_context; |
483
3e1573fa22cf
Implement turbo/slow motion feature that overclocks or underclocks the entire system at the push of a button
Mike Pavone <pavone@retrodev.com>
parents:
482
diff
changeset
|
1320 psg_init(&p_context, render_sample_rate(), gen.master_clock, MCLKS_PER_PSG, render_audio_buffer()); |
488
32f053ad9b02
Basic OpenGL rendering is working
Mike Pavone <pavone@retrodev.com>
parents:
487
diff
changeset
|
1321 |
260
625f8e4d5fd2
Initial stab at integartiong Z80 core
Mike Pavone <pavone@retrodev.com>
parents:
215
diff
changeset
|
1322 z80_context z_context; |
565
9324f721efa6
Add a separate flag/define for disabling the Z80 at compile time to ease refactoring
Michael Pavone <pavone@retrodev.com>
parents:
558
diff
changeset
|
1323 #ifndef NO_Z80 |
590
ea80559c67cb
WIP effort to update z80 core for code gen changes
Michael Pavone <pavone@retrodev.com>
parents:
570
diff
changeset
|
1324 z80_options z_opts; |
ea80559c67cb
WIP effort to update z80 core for code gen changes
Michael Pavone <pavone@retrodev.com>
parents:
570
diff
changeset
|
1325 init_x86_z80_opts(&z_opts, z80_map, 5); |
260
625f8e4d5fd2
Initial stab at integartiong Z80 core
Mike Pavone <pavone@retrodev.com>
parents:
215
diff
changeset
|
1326 init_z80_context(&z_context, &z_opts); |
548
a3afee2271ce
Initial work on the x86-32 target
Michael Pavone <pavone@retrodev.com>
parents:
534
diff
changeset
|
1327 #endif |
290
171f97e70d85
Implement writes from Z80 to YM-2612
Mike Pavone <pavone@retrodev.com>
parents:
289
diff
changeset
|
1328 |
171f97e70d85
Implement writes from Z80 to YM-2612
Mike Pavone <pavone@retrodev.com>
parents:
289
diff
changeset
|
1329 z_context.system = &gen; |
260
625f8e4d5fd2
Initial stab at integartiong Z80 core
Mike Pavone <pavone@retrodev.com>
parents:
215
diff
changeset
|
1330 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
|
1331 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
|
1332 z_context.int_cycle = CYCLE_NEVER; |
625f8e4d5fd2
Initial stab at integartiong Z80 core
Mike Pavone <pavone@retrodev.com>
parents:
215
diff
changeset
|
1333 z_context.mem_pointers[1] = z_context.mem_pointers[2] = (uint8_t *)cart; |
488
32f053ad9b02
Basic OpenGL rendering is working
Mike Pavone <pavone@retrodev.com>
parents:
487
diff
changeset
|
1334 |
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
|
1335 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
|
1336 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
|
1337 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
|
1338 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
|
1339 genesis = &gen; |
488
32f053ad9b02
Basic OpenGL rendering is working
Mike Pavone <pavone@retrodev.com>
parents:
487
diff
changeset
|
1340 |
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
|
1341 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
|
1342 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
|
1343 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
|
1344 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
|
1345 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
|
1346 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
|
1347 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
|
1348 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
|
1349 } |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
1350 } |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
1351 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
|
1352 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
|
1353 } |
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
|
1354 set_keybindings(); |
488
32f053ad9b02
Basic OpenGL rendering is working
Mike Pavone <pavone@retrodev.com>
parents:
487
diff
changeset
|
1355 |
515
1495179d6737
Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
Mike Pavone <pavone@retrodev.com>
parents:
510
diff
changeset
|
1356 init_run_cpu(&gen, address_log, statefile, debuggerfun); |
88
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1357 return 0; |
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1358 } |