Mercurial > repos > blastem
annotate blastem.c @ 889:2d1122123fe9
Approximation of refresh wait states
author | Michael Pavone <pavone@retrodev.com> |
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date | Mon, 16 Nov 2015 21:57:17 -0800 |
parents | e3f5ec336432 |
children | 90d54ccf9557 |
rev | line source |
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467
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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. |
467
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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 <stdio.h> |
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7 #include <stdlib.h> |
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8 #include <string.h> |
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9 #include <ctype.h> |
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10 |
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11 #include "68kinst.h" |
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12 #include "m68k_core.h" |
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13 #include "z80_to_x86.h" |
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14 #include "mem.h" |
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15 #include "vdp.h" |
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16 #include "render.h" |
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17 #include "blastem.h" |
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Initial GDB remote debugging support. Lacks some features, but breakpoints and basic inspection of registers and memory work.
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18 #include "gdb_remote.h" |
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19 #include "gst.h" |
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20 #include "util.h" |
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21 #include "romdb.h" |
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22 #include "terminal.h" |
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23 #include "arena.h" |
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24 |
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25 #define BLASTEM_VERSION "0.3.X" |
464 | 26 |
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27 #define MCLKS_NTSC 53693175 |
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28 #define MCLKS_PAL 53203395 |
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29 |
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30 #define MCLKS_PER_68K 7 |
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31 #define MCLKS_PER_YM MCLKS_PER_68K |
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32 #define MCLKS_PER_Z80 15 |
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33 #define MCLKS_PER_PSG (MCLKS_PER_Z80*16) |
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34 #define DEFAULT_SYNC_INTERVAL MCLKS_LINE |
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35 |
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36 //TODO: Figure out the exact value for this |
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37 #define LINES_NTSC 262 |
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38 #define LINES_PAL 312 |
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39 |
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40 #define MAX_SOUND_CYCLES 100000 |
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41 |
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42 #ifdef __ANDROID__ |
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43 #define FULLSCREEN_DEFAULT 1 |
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44 #else |
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45 #define FULLSCREEN_DEFAULT 0 |
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46 #endif |
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47 |
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48 uint16_t *cart; |
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49 uint16_t *ram; |
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50 uint8_t z80_ram[Z80_RAM_BYTES]; |
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51 |
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52 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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53 int exit_after = 0; |
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54 int z80_enabled = 1; |
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55 int frame_limit = 0; |
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56 |
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57 tern_node * config; |
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58 |
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59 #ifndef MIN |
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60 #define MIN(a,b) ((a) < (b) ? (a) : (b)) |
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61 #endif |
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62 |
166 | 63 #define SMD_HEADER_SIZE 512 |
64 #define SMD_MAGIC1 0x03 | |
65 #define SMD_MAGIC2 0xAA | |
66 #define SMD_MAGIC3 0xBB | |
67 #define SMD_BLOCK_SIZE 0x4000 | |
68 | |
69 int load_smd_rom(long filesize, FILE * f) | |
70 { | |
71 uint8_t block[SMD_BLOCK_SIZE]; | |
72 filesize -= SMD_HEADER_SIZE; | |
73 fseek(f, SMD_HEADER_SIZE, SEEK_SET); | |
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74 |
166 | 75 uint16_t * dst = cart; |
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76 int rom_size = filesize; |
166 | 77 while (filesize > 0) { |
78 fread(block, 1, SMD_BLOCK_SIZE, f); | |
79 for (uint8_t *low = block, *high = (block+SMD_BLOCK_SIZE/2), *end = block+SMD_BLOCK_SIZE; high < end; high++, low++) { | |
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80 *(dst++) = *low << 8 | *high; |
166 | 81 } |
82 filesize -= SMD_BLOCK_SIZE; | |
83 } | |
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84 return filesize; |
166 | 85 } |
86 | |
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87 void byteswap_rom(int filesize) |
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88 { |
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89 for(unsigned short * cur = cart; cur - cart < filesize/2; ++cur) |
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90 { |
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91 *cur = (*cur >> 8) | (*cur << 8); |
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92 } |
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93 } |
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94 |
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95 int load_rom(char * filename) |
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96 { |
166 | 97 uint8_t header[10]; |
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98 FILE * f = fopen(filename, "rb"); |
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99 if (!f) { |
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100 return 0; |
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101 } |
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102 if (sizeof(header) != fread(header, 1, sizeof(header), f)) { |
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103 fatal_error("Error reading from %s\n", filename); |
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104 } |
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105 fseek(f, 0, SEEK_END); |
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106 long filesize = ftell(f); |
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107 fseek(f, 0, SEEK_SET); |
166 | 108 if (header[1] == SMD_MAGIC1 && header[8] == SMD_MAGIC2 && header[9] == SMD_MAGIC3) { |
109 int i; | |
110 for (i = 3; i < 8; i++) { | |
111 if (header[i] != 0) { | |
112 break; | |
113 } | |
114 } | |
115 if (i == 8) { | |
116 if (header[2]) { | |
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117 fatal_error("%s is a split SMD ROM which is not currently supported", filename); |
166 | 118 } |
119 return load_smd_rom(filesize, f); | |
120 } | |
121 } | |
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122 cart = malloc(nearest_pow2(filesize)); |
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123 if (filesize != fread(cart, 1, filesize, f)) { |
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124 fatal_error("Error reading from %s\n", filename); |
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125 } |
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126 fclose(f); |
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127 return filesize; |
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128 } |
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129 |
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130 uint16_t read_dma_value(uint32_t address) |
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131 { |
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132 //addresses here are word addresses (i.e. bit 0 corresponds to A1), so no need to do div by 2 |
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133 if (address < 0x200000) { |
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134 return cart[address]; |
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135 } else if(address >= 0x700000) { |
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136 return ram[address & 0x7FFF]; |
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137 } |
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138 //TODO: Figure out what happens when you try to DMA from weird adresses like IO or banked Z80 area |
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139 return 0; |
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140 } |
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141 |
186
02e25abe2dcd
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142 void adjust_int_cycle(m68k_context * context, vdp_context * v_context) |
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143 { |
717
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Small correction to VBLANK flag timing. Fixed some inconsistencies in interrupt timing calculation.
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144 //static int old_int_cycle = CYCLE_NEVER; |
696
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diff
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145 genesis_context *gen = context->system; |
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146 if (context->sync_cycle - context->current_cycle > gen->max_cycles) { |
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147 context->sync_cycle = context->current_cycle + gen->max_cycles; |
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148 } |
317
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149 context->int_cycle = CYCLE_NEVER; |
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150 if ((context->status & 0x7) < 6) { |
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151 uint32_t next_vint = vdp_next_vint(v_context); |
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152 if (next_vint != CYCLE_NEVER) { |
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153 context->int_cycle = next_vint; |
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154 context->int_num = 6; |
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155 } |
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156 if ((context->status & 0x7) < 4) { |
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157 uint32_t next_hint = vdp_next_hint(v_context); |
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158 if (next_hint != CYCLE_NEVER) { |
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159 if (next_hint < context->int_cycle) { |
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160 context->int_cycle = next_hint; |
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161 context->int_num = 4; |
488
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162 |
317
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163 } |
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164 } |
186
02e25abe2dcd
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diff
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165 } |
02e25abe2dcd
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166 } |
846
98d7b6073163
Implement interrupt latency. Fixes Sesame Street: Counting Cafe and gives accurate results in my test ROM
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167 if (context->int_cycle > context->current_cycle) { |
98d7b6073163
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168 context->int_pending = 0; |
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169 } |
717
22dbdf50d33c
Small correction to VBLANK flag timing. Fixed some inconsistencies in interrupt timing calculation.
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170 /*if (context->int_cycle != old_int_cycle) { |
22dbdf50d33c
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171 printf("int cycle changed to: %d, level: %d @ %d(%d), frame: %d, vcounter: %d, hslot: %d, mask: %d, hint_counter: %d\n", context->int_cycle, context->int_num, v_context->cycles, context->current_cycle, v_context->frame, v_context->vcounter, v_context->hslot, context->status & 0x7, v_context->hint_counter); |
22dbdf50d33c
Small correction to VBLANK flag timing. Fixed some inconsistencies in interrupt timing calculation.
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172 old_int_cycle = context->int_cycle; |
22dbdf50d33c
Small correction to VBLANK flag timing. Fixed some inconsistencies in interrupt timing calculation.
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parents:
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173 }*/ |
317
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174 |
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diff
changeset
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175 context->target_cycle = context->int_cycle < context->sync_cycle ? context->int_cycle : context->sync_cycle; |
872
7022ba865cfd
Initial work for allowing loading a ROM from menu
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176 if (context->should_return) { |
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Initial work for allowing loading a ROM from menu
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177 context->target_cycle = context->current_cycle; |
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Initial work for allowing loading a ROM from menu
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178 } |
488
32f053ad9b02
Basic OpenGL rendering is working
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179 /*printf("Cyc: %d, Trgt: %d, Int Cyc: %d, Int: %d, Mask: %X, V: %d, H: %d, HICount: %d, HReg: %d, Line: %d\n", |
32f053ad9b02
Basic OpenGL rendering is working
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180 context->current_cycle, context->target_cycle, context->int_cycle, context->int_num, (context->status & 0x7), |
317
e5e8b48ad157
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181 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
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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185
diff
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182 } |
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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185
diff
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183 |
198
209a37eed3e7
Add support for breaking into the debugger while game is running
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197
diff
changeset
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184 int break_on_sync = 0; |
451
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
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185 int save_state = 0; |
260
625f8e4d5fd2
Initial stab at integartiong Z80 core
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215
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186 |
280 | 187 //#define DO_DEBUG_PRINT |
268
6c2d7e003a55
Sync Z80 on writes to busreq/reset ports. NULL out extra_pc on z80 reset
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188 #ifdef DO_DEBUG_PRINT |
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189 #define dprintf printf |
271
969ee17471c5
Protect debug prints for busreq/reset regs with appropriate macros
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190 #define dputs puts |
268
6c2d7e003a55
Sync Z80 on writes to busreq/reset ports. NULL out extra_pc on z80 reset
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191 #else |
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192 #define dprintf |
271
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193 #define dputs |
268
6c2d7e003a55
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194 #endif |
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195 |
402
de2c085ce174
Assert z80 interrupt longer so that they are not missed when they should not be
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diff
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196 #define Z80_VINT_DURATION 128 |
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197 |
668
5439ae7946ca
Made the Z80 core more contained by refactoring some code in blastem.c into z80_to_x86.c
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198 void z80_next_int_pulse(z80_context * z_context) |
5439ae7946ca
Made the Z80 core more contained by refactoring some code in blastem.c into z80_to_x86.c
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199 { |
682 | 200 genesis_context * gen = z_context->system; |
668
5439ae7946ca
Made the Z80 core more contained by refactoring some code in blastem.c into z80_to_x86.c
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diff
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201 z_context->int_pulse_start = vdp_next_vint_z80(gen->vdp); |
670
f4f3e74b0ce6
Restore Z80 interrupt pulse duration and make a small improvement to debug print output
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669
diff
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202 z_context->int_pulse_end = z_context->int_pulse_start + Z80_VINT_DURATION * MCLKS_PER_Z80; |
682 | 203 } |
668
5439ae7946ca
Made the Z80 core more contained by refactoring some code in blastem.c into z80_to_x86.c
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204 |
268
6c2d7e003a55
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205 void sync_z80(z80_context * z_context, uint32_t mclks) |
88
c339559f1d4f
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206 { |
565
9324f721efa6
Add a separate flag/define for disabling the Z80 at compile time to ease refactoring
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558
diff
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|
207 #ifndef NO_Z80 |
668
5439ae7946ca
Made the Z80 core more contained by refactoring some code in blastem.c into z80_to_x86.c
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208 if (z80_enabled) { |
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Made the Z80 core more contained by refactoring some code in blastem.c into z80_to_x86.c
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diff
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|
209 z80_run(z_context, mclks); |
548
a3afee2271ce
Initial work on the x86-32 target
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diff
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210 } else |
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Initial work on the x86-32 target
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diff
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211 #endif |
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Initial work on the x86-32 target
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diff
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212 { |
667
30ccf56842d6
All cycle counters are now based off the master clock. This seems to have messed up Z80 interrupt timing (music in Sonic 2 is too slow for instance), but things are generally working
Michael Pavone <pavone@retrodev.com>
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661
diff
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213 z_context->current_cycle = mclks; |
260
625f8e4d5fd2
Initial stab at integartiong Z80 core
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215
diff
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214 } |
268
6c2d7e003a55
Sync Z80 on writes to busreq/reset ports. NULL out extra_pc on z80 reset
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215 } |
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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diff
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216 |
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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217 void sync_sound(genesis_context * gen, uint32_t target) |
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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diff
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218 { |
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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219 //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); |
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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220 while (target > gen->psg->cycles && target - gen->psg->cycles > MAX_SOUND_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
changeset
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221 uint32_t cur_target = gen->psg->cycles + MAX_SOUND_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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222 //printf("Running PSG to cycle %d\n", cur_target); |
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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|
223 psg_run(gen->psg, cur_target); |
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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224 //printf("Running YM-2612 to cycle %d\n", cur_target); |
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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|
225 ym_run(gen->ym, cur_target); |
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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|
226 } |
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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227 psg_run(gen->psg, target); |
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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228 ym_run(gen->ym, target); |
488
32f053ad9b02
Basic OpenGL rendering is working
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229 |
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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230 //printf("Target: %d, YM bufferpos: %d, PSG bufferpos: %d\n", target, gen->ym->buffer_pos, gen->psg->buffer_pos * 2); |
1c8d74f2ab0b
Make the PSG and YM2612 use the master clock internal with an increment based on clock divider so that they stay perflectly in sync. Run both the PSG and YM2612 whenver one of them needs to be run.
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374
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|
231 } |
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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232 |
889
2d1122123fe9
Approximation of refresh wait states
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885
diff
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|
233 #define REFRESH_INTERVAL 130 |
2d1122123fe9
Approximation of refresh wait states
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diff
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|
234 #define REFRESH_DELAY 2 |
697
7f96bd1cb1be
Sync fixes and logging to fix more sync issues
Michael Pavone <pavone@retrodev.com>
parents:
696
diff
changeset
|
235 uint32_t last_frame_num; |
889
2d1122123fe9
Approximation of refresh wait states
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diff
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|
236 uint32_t last_sync_cycle; |
2d1122123fe9
Approximation of refresh wait states
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237 uint32_t refresh_counter; |
268
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238 m68k_context * sync_components(m68k_context * context, uint32_t address) |
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239 { |
288
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240 genesis_context * gen = context->system; |
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241 vdp_context * v_context = gen->vdp; |
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242 z80_context * z_context = gen->z80; |
889
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243 //lame estimation of refresh cycle delay |
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244 refresh_counter += context->current_cycle - last_sync_cycle; |
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245 context->current_cycle += REFRESH_DELAY * MCLKS_PER_68K * (refresh_counter / (MCLKS_PER_68K * REFRESH_INTERVAL)); |
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246 refresh_counter = refresh_counter % (MCLKS_PER_68K * REFRESH_INTERVAL); |
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247 |
667
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248 uint32_t mclks = context->current_cycle; |
268
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249 sync_z80(z_context, mclks); |
695 | 250 sync_sound(gen, mclks); |
697
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251 vdp_run_context(v_context, mclks); |
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252 if (v_context->frame != last_frame_num) { |
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253 //printf("reached frame end %d | MCLK Cycles: %d, Target: %d, VDP cycles: %d, vcounter: %d, hslot: %d\n", last_frame_num, mclks, gen->frame_end, v_context->cycles, v_context->vcounter, v_context->hslot); |
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254 last_frame_num = v_context->frame; |
488
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Basic OpenGL rendering is working
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255 |
697
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256 if (!headless) { |
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257 break_on_sync |= wait_render_frame(v_context, frame_limit); |
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258 } else if(exit_after){ |
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259 --exit_after; |
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260 if (!exit_after) { |
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261 exit(0); |
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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262 } |
88
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263 } |
832
0433fdd9ba66
Added a command line option to force BlastEm to not open a new terminal even if it detects that stdin/out are not terminals
Michael Pavone <pavone@retrodev.com>
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819
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264 |
697
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265 vdp_adjust_cycles(v_context, mclks); |
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diff
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266 io_adjust_cycles(gen->ports, context->current_cycle, mclks); |
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267 io_adjust_cycles(gen->ports+1, context->current_cycle, mclks); |
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268 io_adjust_cycles(gen->ports+2, context->current_cycle, mclks); |
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269 context->current_cycle -= mclks; |
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270 z80_adjust_cycles(z_context, mclks); |
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271 gen->ym->current_cycle -= mclks; |
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272 gen->psg->cycles -= mclks; |
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273 if (gen->ym->write_cycle != CYCLE_NEVER) { |
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274 gen->ym->write_cycle = gen->ym->write_cycle >= mclks ? gen->ym->write_cycle - mclks : 0; |
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275 } |
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276 } |
700 | 277 gen->frame_end = vdp_cycles_to_frame_end(v_context); |
697
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278 context->sync_cycle = gen->frame_end; |
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279 //printf("Set sync cycle to: %d @ %d, vcounter: %d, hslot: %d\n", context->sync_cycle, context->current_cycle, v_context->vcounter, v_context->hslot); |
317
e5e8b48ad157
Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port.
Mike Pavone <pavone@retrodev.com>
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290
diff
changeset
|
280 if (context->int_ack) { |
718
eaba6789f316
Update vscroll latch implementation to be more in line with what Eke-Eke has observed. Revert the change to vdp_cycles_to_line because it breaks hints on line 0. H-Int timing is still a little messed up, but the previous change made things worse.
Michael Pavone <pavone@retrodev.com>
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281 //printf("acknowledging %d @ %d:%d, vcounter: %d, hslot: %d\n", context->int_ack, context->current_cycle, v_context->cycles, v_context->vcounter, v_context->hslot); |
317
e5e8b48ad157
Initial stab at horizontal interrupts and improving accuracy of vertical interrupts. Also added the VINT pending flag to status port.
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diff
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|
282 vdp_int_ack(v_context, context->int_ack); |
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diff
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|
283 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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diff
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284 } |
721
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285 if (!address && (break_on_sync || save_state)) { |
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286 context->sync_cycle = context->current_cycle + 1; |
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Better handling of savestate and debug break events with "uncooperative" games/demos
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diff
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287 } |
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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185
diff
changeset
|
288 adjust_int_cycle(context, v_context); |
451
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
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diff
changeset
|
289 if (address) { |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
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diff
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|
290 if (break_on_sync) { |
695 | 291 break_on_sync = 0; |
292 debugger(context, address); | |
293 } | |
736
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Implement cycles being stolen from 68K when the Z80 accesses the bank area or VDP/PSG. Small fix to code that tries to get system into a consistent state for a savestate
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diff
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294 if (save_state && (z_context->pc || (!z_context->reset && !z_context->busreq))) { |
451
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
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diff
changeset
|
295 save_state = 0; |
667
30ccf56842d6
All cycle counters are now based off the master clock. This seems to have messed up Z80 interrupt timing (music in Sonic 2 is too slow for instance), but things are generally working
Michael Pavone <pavone@retrodev.com>
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diff
changeset
|
296 //advance Z80 core to the start of an instruction |
451
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
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447
diff
changeset
|
297 while (!z_context->pc) |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
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diff
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|
298 { |
667
30ccf56842d6
All cycle counters are now based off the master clock. This seems to have messed up Z80 interrupt timing (music in Sonic 2 is too slow for instance), but things are generally working
Michael Pavone <pavone@retrodev.com>
parents:
661
diff
changeset
|
299 sync_z80(z_context, z_context->current_cycle + MCLKS_PER_Z80); |
451
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
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parents:
447
diff
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|
300 } |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
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parents:
447
diff
changeset
|
301 save_gst(gen, "savestate.gst", address); |
721
20be7d01e312
Better handling of savestate and debug break events with "uncooperative" games/demos
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parents:
719
diff
changeset
|
302 puts("Saved state to savestate.gst"); |
736
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Implement cycles being stolen from 68K when the Z80 accesses the bank area or VDP/PSG. Small fix to code that tries to get system into a consistent state for a savestate
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parents:
721
diff
changeset
|
303 } else if(save_state) { |
535e97bad27f
Implement cycles being stolen from 68K when the Z80 accesses the bank area or VDP/PSG. Small fix to code that tries to get system into a consistent state for a savestate
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parents:
721
diff
changeset
|
304 context->sync_cycle = context->current_cycle + 1; |
451
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
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parents:
447
diff
changeset
|
305 } |
198
209a37eed3e7
Add support for breaking into the debugger while game is running
Mike Pavone <pavone@retrodev.com>
parents:
197
diff
changeset
|
306 } |
889
2d1122123fe9
Approximation of refresh wait states
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parents:
885
diff
changeset
|
307 last_sync_cycle = context->current_cycle; |
88
c339559f1d4f
Forgot to add blastem main file earlier
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parents:
diff
changeset
|
308 return context; |
c339559f1d4f
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diff
changeset
|
309 } |
c339559f1d4f
Forgot to add blastem main file earlier
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diff
changeset
|
310 |
c339559f1d4f
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parents:
diff
changeset
|
311 m68k_context * vdp_port_write(uint32_t vdp_port, m68k_context * context, uint16_t value) |
c339559f1d4f
Forgot to add blastem main file earlier
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parents:
diff
changeset
|
312 { |
343
467bfa17004a
Mostly working runtime generation of memory map read/write functions
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parents:
342
diff
changeset
|
313 if (vdp_port & 0x2700E0) { |
792
724bbec47f86
Use a new fatal_error function instead of calling fprintf and exit for fatal errors. This new function more gracefully handles the case in which BlastEm was not started from a terminal or disconnected from ther terminal (Windows).
Michael Pavone <pavone@retrodev.com>
parents:
787
diff
changeset
|
314 fatal_error("machine freeze due to write to address %X\n", 0xC00000 | vdp_port); |
343
467bfa17004a
Mostly working runtime generation of memory map read/write functions
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parents:
342
diff
changeset
|
315 } |
467bfa17004a
Mostly working runtime generation of memory map read/write functions
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parents:
342
diff
changeset
|
316 vdp_port &= 0x1F; |
88
c339559f1d4f
Forgot to add blastem main file earlier
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diff
changeset
|
317 //printf("vdp_port write: %X, value: %X, cycle: %d\n", vdp_port, value, context->current_cycle); |
198
209a37eed3e7
Add support for breaking into the debugger while game is running
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parents:
197
diff
changeset
|
318 sync_components(context, 0); |
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
|
319 genesis_context * gen = context->system; |
874
b6842dfb8edf
ROM is now run after being selected in menu. Initial path for menu is read from config file.
Michael Pavone <pavone@retrodev.com>
parents:
872
diff
changeset
|
320 vdp_context *v_context = gen->vdp; |
88
c339559f1d4f
Forgot to add blastem main file earlier
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parents:
diff
changeset
|
321 if (vdp_port < 0x10) { |
149
139e5dcd6aa3
Make writes to control and data port block when DMA is in progress
Mike Pavone <pavone@retrodev.com>
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144
diff
changeset
|
322 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.
Mike Pavone <pavone@retrodev.com>
parents:
344
diff
changeset
|
323 uint32_t before_cycle = v_context->cycles; |
88
c339559f1d4f
Forgot to add blastem main file earlier
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parents:
diff
changeset
|
324 if (vdp_port < 4) { |
832
0433fdd9ba66
Added a command line option to force BlastEm to not open a new terminal even if it detects that stdin/out are not terminals
Michael Pavone <pavone@retrodev.com>
parents:
819
diff
changeset
|
325 |
149
139e5dcd6aa3
Make writes to control and data port block when DMA is in progress
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parents:
144
diff
changeset
|
326 while (vdp_data_port_write(v_context, value) < 0) { |
88
c339559f1d4f
Forgot to add blastem main file earlier
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parents:
diff
changeset
|
327 while(v_context->flags & FLAG_DMA_RUN) { |
696
0b2242bbc84a
Added config option to allow specifying a max sync cycle smaller than the end of frame
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parents:
695
diff
changeset
|
328 vdp_run_dma_done(v_context, gen->frame_end); |
0b2242bbc84a
Added config option to allow specifying a max sync cycle smaller than the end of frame
Michael Pavone <pavone@retrodev.com>
parents:
695
diff
changeset
|
329 if (v_context->cycles >= gen->frame_end) { |
667
30ccf56842d6
All cycle counters are now based off the master clock. This seems to have messed up Z80 interrupt timing (music in Sonic 2 is too slow for instance), but things are generally working
Michael Pavone <pavone@retrodev.com>
parents:
661
diff
changeset
|
330 context->current_cycle = v_context->cycles; |
697
7f96bd1cb1be
Sync fixes and logging to fix more sync issues
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parents:
696
diff
changeset
|
331 gen->bus_busy = 1; |
534
c641006da28e
Properly sync hardware when frame end is reached during DMA
Mike Pavone <pavone@retrodev.com>
parents:
531
diff
changeset
|
332 sync_components(context, 0); |
697
7f96bd1cb1be
Sync fixes and logging to fix more sync issues
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parents:
696
diff
changeset
|
333 gen->bus_busy = 0; |
88
c339559f1d4f
Forgot to add blastem main file earlier
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diff
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|
334 } |
c339559f1d4f
Forgot to add blastem main file earlier
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parents:
diff
changeset
|
335 } |
667
30ccf56842d6
All cycle counters are now based off the master clock. This seems to have messed up Z80 interrupt timing (music in Sonic 2 is too slow for instance), but things are generally working
Michael Pavone <pavone@retrodev.com>
parents:
661
diff
changeset
|
336 //context->current_cycle = v_context->cycles; |
149
139e5dcd6aa3
Make writes to control and data port block when DMA is in progress
Mike Pavone <pavone@retrodev.com>
parents:
144
diff
changeset
|
337 } |
139e5dcd6aa3
Make writes to control and data port block when DMA is in progress
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parents:
144
diff
changeset
|
338 } else if(vdp_port < 8) { |
139e5dcd6aa3
Make writes to control and data port block when DMA is in progress
Mike Pavone <pavone@retrodev.com>
parents:
144
diff
changeset
|
339 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
changeset
|
340 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
|
341 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
|
342 while(v_context->flags & FLAG_DMA_RUN) { |
696
0b2242bbc84a
Added config option to allow specifying a max sync cycle smaller than the end of frame
Michael Pavone <pavone@retrodev.com>
parents:
695
diff
changeset
|
343 vdp_run_dma_done(v_context, gen->frame_end); |
0b2242bbc84a
Added config option to allow specifying a max sync cycle smaller than the end of frame
Michael Pavone <pavone@retrodev.com>
parents:
695
diff
changeset
|
344 if (v_context->cycles >= gen->frame_end) { |
667
30ccf56842d6
All cycle counters are now based off the master clock. This seems to have messed up Z80 interrupt timing (music in Sonic 2 is too slow for instance), but things are generally working
Michael Pavone <pavone@retrodev.com>
parents:
661
diff
changeset
|
345 context->current_cycle = v_context->cycles; |
697
7f96bd1cb1be
Sync fixes and logging to fix more sync issues
Michael Pavone <pavone@retrodev.com>
parents:
696
diff
changeset
|
346 gen->bus_busy = 1; |
534
c641006da28e
Properly sync hardware when frame end is reached during DMA
Mike Pavone <pavone@retrodev.com>
parents:
531
diff
changeset
|
347 sync_components(context, 0); |
697
7f96bd1cb1be
Sync fixes and logging to fix more sync issues
Michael Pavone <pavone@retrodev.com>
parents:
696
diff
changeset
|
348 gen->bus_busy = 0; |
149
139e5dcd6aa3
Make writes to control and data port block when DMA is in progress
Mike Pavone <pavone@retrodev.com>
parents:
144
diff
changeset
|
349 } |
139e5dcd6aa3
Make writes to control and data port block when DMA is in progress
Mike Pavone <pavone@retrodev.com>
parents:
144
diff
changeset
|
350 } |
139e5dcd6aa3
Make writes to control and data port block when DMA is in progress
Mike Pavone <pavone@retrodev.com>
parents:
144
diff
changeset
|
351 if (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
|
352 blocked = vdp_control_port_write(v_context, value); |
139e5dcd6aa3
Make writes to control and data port block when DMA is in progress
Mike Pavone <pavone@retrodev.com>
parents:
144
diff
changeset
|
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 { |
697
7f96bd1cb1be
Sync fixes and logging to fix more sync issues
Michael Pavone <pavone@retrodev.com>
parents:
696
diff
changeset
|
358 context->sync_cycle = gen->frame_end = vdp_cycles_to_frame_end(v_context); |
7f96bd1cb1be
Sync fixes and logging to fix more sync issues
Michael Pavone <pavone@retrodev.com>
parents:
696
diff
changeset
|
359 //printf("Set sync cycle to: %d @ %d, vcounter: %d, hslot: %d\n", context->sync_cycle, context->current_cycle, v_context->vcounter, v_context->hslot); |
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
|
360 adjust_int_cycle(context, v_context); |
88
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
361 } |
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
362 } else { |
792
724bbec47f86
Use a new fatal_error function instead of calling fprintf and exit for fatal errors. This new function more gracefully handles the case in which BlastEm was not started from a terminal or disconnected from ther terminal (Windows).
Michael Pavone <pavone@retrodev.com>
parents:
787
diff
changeset
|
363 fatal_error("Illegal write to HV Counter port %X\n", vdp_port); |
88
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
364 } |
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
|
365 if (v_context->cycles != before_cycle) { |
667
30ccf56842d6
All cycle counters are now based off the master clock. This seems to have messed up Z80 interrupt timing (music in Sonic 2 is too slow for instance), but things are generally working
Michael Pavone <pavone@retrodev.com>
parents:
661
diff
changeset
|
366 //printf("68K paused for %d (%d) cycles at cycle %d (%d) for write\n", v_context->cycles - context->current_cycle, v_context->cycles - before_cycle, context->current_cycle, before_cycle); |
889
2d1122123fe9
Approximation of refresh wait states
Michael Pavone <pavone@retrodev.com>
parents:
885
diff
changeset
|
367 last_sync_cycle = context->current_cycle = v_context->cycles; |
680
4996369f1463
Some small synchronization improvements that do not seem to fix anything
Michael Pavone <pavone@retrodev.com>
parents:
679
diff
changeset
|
368 //Lock the Z80 out of the bus until the VDP access is complete |
4996369f1463
Some small synchronization improvements that do not seem to fix anything
Michael Pavone <pavone@retrodev.com>
parents:
679
diff
changeset
|
369 gen->bus_busy = 1; |
4996369f1463
Some small synchronization improvements that do not seem to fix anything
Michael Pavone <pavone@retrodev.com>
parents:
679
diff
changeset
|
370 sync_z80(gen->z80, v_context->cycles); |
4996369f1463
Some small synchronization improvements that do not seem to fix anything
Michael Pavone <pavone@retrodev.com>
parents:
679
diff
changeset
|
371 gen->bus_busy = 0; |
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
|
372 } |
88
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
373 } else if (vdp_port < 0x18) { |
354
15dd6418fe67
Initial PSG support. Mostly works, noise channel is borked though.
Mike Pavone <pavone@retrodev.com>
parents:
351
diff
changeset
|
374 psg_write(gen->psg, value); |
88
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
375 } else { |
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
376 //TODO: Implement undocumented test register(s) |
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
377 } |
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
378 return context; |
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
379 } |
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
380 |
343
467bfa17004a
Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents:
342
diff
changeset
|
381 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
Mike Pavone <pavone@retrodev.com>
parents:
342
diff
changeset
|
382 { |
357
fa7ea48be9a9
Allow VDP/PSG writes from Z80
Mike Pavone <pavone@retrodev.com>
parents:
356
diff
changeset
|
383 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
Mike Pavone <pavone@retrodev.com>
parents:
356
diff
changeset
|
384 } |
fa7ea48be9a9
Allow VDP/PSG writes from Z80
Mike Pavone <pavone@retrodev.com>
parents:
356
diff
changeset
|
385 |
592
4ff7bbb3943b
Get rest of emulator compiling again with Z80 core enabled
Michael Pavone <pavone@retrodev.com>
parents:
590
diff
changeset
|
386 void * z80_vdp_port_write(uint32_t vdp_port, void * vcontext, uint8_t value) |
357
fa7ea48be9a9
Allow VDP/PSG writes from Z80
Mike Pavone <pavone@retrodev.com>
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 z80_context * context = vcontext; |
357
fa7ea48be9a9
Allow VDP/PSG writes from Z80
Mike Pavone <pavone@retrodev.com>
parents:
356
diff
changeset
|
389 genesis_context * gen = context->system; |
660
e7cae6d9aaa6
Add the 3 cycle delay back in to Z80 bank area access
Michael Pavone <pavone@retrodev.com>
parents:
659
diff
changeset
|
390 vdp_port &= 0xFF; |
358
9498cfa7f7c8
Make Z80 writes to VDP/PSG not potentially crash the emulator
Mike Pavone <pavone@retrodev.com>
parents:
357
diff
changeset
|
391 if (vdp_port & 0xE0) { |
792
724bbec47f86
Use a new fatal_error function instead of calling fprintf and exit for fatal errors. This new function more gracefully handles the case in which BlastEm was not started from a terminal or disconnected from ther terminal (Windows).
Michael Pavone <pavone@retrodev.com>
parents:
787
diff
changeset
|
392 fatal_error("machine freeze due to write to Z80 address %X\n", 0x7F00 | vdp_port); |
358
9498cfa7f7c8
Make Z80 writes to VDP/PSG not potentially crash the emulator
Mike Pavone <pavone@retrodev.com>
parents:
357
diff
changeset
|
393 } |
9498cfa7f7c8
Make Z80 writes to VDP/PSG not potentially crash the emulator
Mike Pavone <pavone@retrodev.com>
parents:
357
diff
changeset
|
394 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
|
395 //These probably won't currently interact well with the 68K accessing the VDP |
667
30ccf56842d6
All cycle counters are now based off the master clock. This seems to have messed up Z80 interrupt timing (music in Sonic 2 is too slow for instance), but things are generally working
Michael Pavone <pavone@retrodev.com>
parents:
661
diff
changeset
|
396 vdp_run_context(gen->vdp, context->current_cycle); |
358
9498cfa7f7c8
Make Z80 writes to VDP/PSG not potentially crash the emulator
Mike Pavone <pavone@retrodev.com>
parents:
357
diff
changeset
|
397 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
|
398 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
|
399 } 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
|
400 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
|
401 } else { |
792
724bbec47f86
Use a new fatal_error function instead of calling fprintf and exit for fatal errors. This new function more gracefully handles the case in which BlastEm was not started from a terminal or disconnected from ther terminal (Windows).
Michael Pavone <pavone@retrodev.com>
parents:
787
diff
changeset
|
402 fatal_error("Illegal write to HV Counter port %X\n", vdp_port); |
358
9498cfa7f7c8
Make Z80 writes to VDP/PSG not potentially crash the emulator
Mike Pavone <pavone@retrodev.com>
parents:
357
diff
changeset
|
403 } |
9498cfa7f7c8
Make Z80 writes to VDP/PSG not potentially crash the emulator
Mike Pavone <pavone@retrodev.com>
parents:
357
diff
changeset
|
404 } else if (vdp_port < 0x18) { |
667
30ccf56842d6
All cycle counters are now based off the master clock. This seems to have messed up Z80 interrupt timing (music in Sonic 2 is too slow for instance), but things are generally working
Michael Pavone <pavone@retrodev.com>
parents:
661
diff
changeset
|
405 sync_sound(gen, context->current_cycle); |
358
9498cfa7f7c8
Make Z80 writes to VDP/PSG not potentially crash the emulator
Mike Pavone <pavone@retrodev.com>
parents:
357
diff
changeset
|
406 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
|
407 } 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
|
408 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
|
409 } |
357
fa7ea48be9a9
Allow VDP/PSG writes from Z80
Mike Pavone <pavone@retrodev.com>
parents:
356
diff
changeset
|
410 return context; |
343
467bfa17004a
Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents:
342
diff
changeset
|
411 } |
467bfa17004a
Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents:
342
diff
changeset
|
412 |
467bfa17004a
Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents:
342
diff
changeset
|
413 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
|
414 { |
343
467bfa17004a
Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents:
342
diff
changeset
|
415 if (vdp_port & 0x2700E0) { |
792
724bbec47f86
Use a new fatal_error function instead of calling fprintf and exit for fatal errors. This new function more gracefully handles the case in which BlastEm was not started from a terminal or disconnected from ther terminal (Windows).
Michael Pavone <pavone@retrodev.com>
parents:
787
diff
changeset
|
416 fatal_error("machine freeze due to read from address %X\n", 0xC00000 | vdp_port); |
343
467bfa17004a
Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents:
342
diff
changeset
|
417 } |
467bfa17004a
Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents:
342
diff
changeset
|
418 vdp_port &= 0x1F; |
467bfa17004a
Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents:
342
diff
changeset
|
419 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
|
420 sync_components(context, 0); |
874
b6842dfb8edf
ROM is now run after being selected in menu. Initial path for menu is read from config file.
Michael Pavone <pavone@retrodev.com>
parents:
872
diff
changeset
|
421 genesis_context *gen = context->system; |
b6842dfb8edf
ROM is now run after being selected in menu. Initial path for menu is read from config file.
Michael Pavone <pavone@retrodev.com>
parents:
872
diff
changeset
|
422 vdp_context * v_context = gen->vdp; |
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
|
423 uint32_t before_cycle = v_context->cycles; |
88
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
424 if (vdp_port < 0x10) { |
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
425 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
|
426 value = vdp_data_port_read(v_context); |
88
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
427 } 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
|
428 value = vdp_control_port_read(v_context); |
88
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
429 } else { |
343
467bfa17004a
Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents:
342
diff
changeset
|
430 value = vdp_hv_counter_read(v_context); |
467bfa17004a
Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents:
342
diff
changeset
|
431 //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
|
432 } |
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
|
433 } else if (vdp_port < 0x18){ |
792
724bbec47f86
Use a new fatal_error function instead of calling fprintf and exit for fatal errors. This new function more gracefully handles the case in which BlastEm was not started from a terminal or disconnected from ther terminal (Windows).
Michael Pavone <pavone@retrodev.com>
parents:
787
diff
changeset
|
434 fatal_error("Illegal read from PSG port %X\n", vdp_port); |
88
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
435 } 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
|
436 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
|
437 } |
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 if (v_context->cycles != before_cycle) { |
667
30ccf56842d6
All cycle counters are now based off the master clock. This seems to have messed up Z80 interrupt timing (music in Sonic 2 is too slow for instance), but things are generally working
Michael Pavone <pavone@retrodev.com>
parents:
661
diff
changeset
|
439 //printf("68K paused for %d (%d) cycles at cycle %d (%d) for read\n", v_context->cycles - context->current_cycle, v_context->cycles - before_cycle, context->current_cycle, before_cycle); |
889
2d1122123fe9
Approximation of refresh wait states
Michael Pavone <pavone@retrodev.com>
parents:
885
diff
changeset
|
440 last_sync_cycle = context->current_cycle = v_context->cycles; |
680
4996369f1463
Some small synchronization improvements that do not seem to fix anything
Michael Pavone <pavone@retrodev.com>
parents:
679
diff
changeset
|
441 //Lock the Z80 out of the bus until the VDP access is complete |
4996369f1463
Some small synchronization improvements that do not seem to fix anything
Michael Pavone <pavone@retrodev.com>
parents:
679
diff
changeset
|
442 genesis_context *gen = context->system; |
4996369f1463
Some small synchronization improvements that do not seem to fix anything
Michael Pavone <pavone@retrodev.com>
parents:
679
diff
changeset
|
443 gen->bus_busy = 1; |
4996369f1463
Some small synchronization improvements that do not seem to fix anything
Michael Pavone <pavone@retrodev.com>
parents:
679
diff
changeset
|
444 sync_z80(gen->z80, v_context->cycles); |
4996369f1463
Some small synchronization improvements that do not seem to fix anything
Michael Pavone <pavone@retrodev.com>
parents:
679
diff
changeset
|
445 gen->bus_busy = 0; |
88
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
446 } |
343
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diff
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|
447 return value; |
467bfa17004a
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342
diff
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|
448 } |
467bfa17004a
Mostly working runtime generation of memory map read/write functions
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parents:
342
diff
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|
449 |
467bfa17004a
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diff
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|
450 uint8_t vdp_port_read_b(uint32_t vdp_port, m68k_context * context) |
467bfa17004a
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diff
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|
451 { |
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diff
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|
452 uint16_t value = vdp_port_read(vdp_port, context); |
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diff
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|
453 if (vdp_port & 1) { |
467bfa17004a
Mostly working runtime generation of memory map read/write functions
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parents:
342
diff
changeset
|
454 return value; |
467bfa17004a
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parents:
342
diff
changeset
|
455 } else { |
467bfa17004a
Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents:
342
diff
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|
456 return value >> 8; |
467bfa17004a
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Mike Pavone <pavone@retrodev.com>
parents:
342
diff
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|
457 } |
88
c339559f1d4f
Forgot to add blastem main file earlier
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parents:
diff
changeset
|
458 } |
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
459 |
592
4ff7bbb3943b
Get rest of emulator compiling again with Z80 core enabled
Michael Pavone <pavone@retrodev.com>
parents:
590
diff
changeset
|
460 uint8_t z80_vdp_port_read(uint32_t vdp_port, void * vcontext) |
4ff7bbb3943b
Get rest of emulator compiling again with Z80 core enabled
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parents:
590
diff
changeset
|
461 { |
4ff7bbb3943b
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diff
changeset
|
462 z80_context * context = vcontext; |
4ff7bbb3943b
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parents:
590
diff
changeset
|
463 if (vdp_port & 0xE0) { |
792
724bbec47f86
Use a new fatal_error function instead of calling fprintf and exit for fatal errors. This new function more gracefully handles the case in which BlastEm was not started from a terminal or disconnected from ther terminal (Windows).
Michael Pavone <pavone@retrodev.com>
parents:
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diff
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|
464 fatal_error("machine freeze due to read from Z80 address %X\n", 0x7F00 | vdp_port); |
592
4ff7bbb3943b
Get rest of emulator compiling again with Z80 core enabled
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parents:
590
diff
changeset
|
465 } |
4ff7bbb3943b
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parents:
590
diff
changeset
|
466 genesis_context * gen = context->system; |
736
535e97bad27f
Implement cycles being stolen from 68K when the Z80 accesses the bank area or VDP/PSG. Small fix to code that tries to get system into a consistent state for a savestate
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467 //VDP access goes over the 68K bus like a bank area access |
535e97bad27f
Implement cycles being stolen from 68K when the Z80 accesses the bank area or VDP/PSG. Small fix to code that tries to get system into a consistent state for a savestate
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parents:
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diff
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|
468 //typical delay from bus arbitration |
535e97bad27f
Implement cycles being stolen from 68K when the Z80 accesses the bank area or VDP/PSG. Small fix to code that tries to get system into a consistent state for a savestate
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721
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469 context->current_cycle += 3 * MCLKS_PER_Z80; |
535e97bad27f
Implement cycles being stolen from 68K when the Z80 accesses the bank area or VDP/PSG. Small fix to code that tries to get system into a consistent state for a savestate
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parents:
721
diff
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470 //TODO: add cycle for an access right after a previous one |
535e97bad27f
Implement cycles being stolen from 68K when the Z80 accesses the bank area or VDP/PSG. Small fix to code that tries to get system into a consistent state for a savestate
Michael Pavone <pavone@retrodev.com>
parents:
721
diff
changeset
|
471 //TODO: Below cycle time is an estimate based on the time between 68K !BG goes low and Z80 !MREQ goes high |
535e97bad27f
Implement cycles being stolen from 68K when the Z80 accesses the bank area or VDP/PSG. Small fix to code that tries to get system into a consistent state for a savestate
Michael Pavone <pavone@retrodev.com>
parents:
721
diff
changeset
|
472 // Needs a new logic analyzer capture to get the actual delay on the 68K side |
535e97bad27f
Implement cycles being stolen from 68K when the Z80 accesses the bank area or VDP/PSG. Small fix to code that tries to get system into a consistent state for a savestate
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parents:
721
diff
changeset
|
473 gen->m68k->current_cycle += 8 * MCLKS_PER_68K; |
832
0433fdd9ba66
Added a command line option to force BlastEm to not open a new terminal even if it detects that stdin/out are not terminals
Michael Pavone <pavone@retrodev.com>
parents:
819
diff
changeset
|
474 |
0433fdd9ba66
Added a command line option to force BlastEm to not open a new terminal even if it detects that stdin/out are not terminals
Michael Pavone <pavone@retrodev.com>
parents:
819
diff
changeset
|
475 |
592
4ff7bbb3943b
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parents:
590
diff
changeset
|
476 vdp_port &= 0x1F; |
4ff7bbb3943b
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Michael Pavone <pavone@retrodev.com>
parents:
590
diff
changeset
|
477 uint16_t ret; |
4ff7bbb3943b
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parents:
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diff
changeset
|
478 if (vdp_port < 0x10) { |
4ff7bbb3943b
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parents:
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diff
changeset
|
479 //These probably won't currently interact well with the 68K accessing the VDP |
667
30ccf56842d6
All cycle counters are now based off the master clock. This seems to have messed up Z80 interrupt timing (music in Sonic 2 is too slow for instance), but things are generally working
Michael Pavone <pavone@retrodev.com>
parents:
661
diff
changeset
|
480 vdp_run_context(gen->vdp, context->current_cycle); |
592
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parents:
590
diff
changeset
|
481 if (vdp_port < 4) { |
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parents:
590
diff
changeset
|
482 ret = vdp_data_port_read(gen->vdp); |
4ff7bbb3943b
Get rest of emulator compiling again with Z80 core enabled
Michael Pavone <pavone@retrodev.com>
parents:
590
diff
changeset
|
483 } else if (vdp_port < 8) { |
4ff7bbb3943b
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parents:
590
diff
changeset
|
484 ret = vdp_control_port_read(gen->vdp); |
4ff7bbb3943b
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Michael Pavone <pavone@retrodev.com>
parents:
590
diff
changeset
|
485 } else { |
792
724bbec47f86
Use a new fatal_error function instead of calling fprintf and exit for fatal errors. This new function more gracefully handles the case in which BlastEm was not started from a terminal or disconnected from ther terminal (Windows).
Michael Pavone <pavone@retrodev.com>
parents:
787
diff
changeset
|
486 fatal_error("Illegal write to HV Counter port %X\n", vdp_port); |
592
4ff7bbb3943b
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parents:
590
diff
changeset
|
487 } |
4ff7bbb3943b
Get rest of emulator compiling again with Z80 core enabled
Michael Pavone <pavone@retrodev.com>
parents:
590
diff
changeset
|
488 } else { |
4ff7bbb3943b
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parents:
590
diff
changeset
|
489 //TODO: Figure out the correct value today |
4ff7bbb3943b
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parents:
590
diff
changeset
|
490 ret = 0xFFFF; |
4ff7bbb3943b
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diff
changeset
|
491 } |
4ff7bbb3943b
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diff
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|
492 return vdp_port & 1 ? ret : ret >> 8; |
4ff7bbb3943b
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Michael Pavone <pavone@retrodev.com>
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590
diff
changeset
|
493 } |
4ff7bbb3943b
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590
diff
changeset
|
494 |
279
6be6056735a9
Fix native address lookup in bannked memory area
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276
diff
changeset
|
495 uint32_t zram_counter = 0; |
6be6056735a9
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276
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|
496 |
88
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diff
changeset
|
497 m68k_context * io_write(uint32_t location, m68k_context * context, uint8_t value) |
c339559f1d4f
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diff
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|
498 { |
288
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
|
499 genesis_context * gen = context->system; |
153
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diff
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|
500 if (location < 0x10000) { |
844
74e161fe7d39
Small tweaks to timing of 68K/Z80 interactions based on latest tests
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parents:
837
diff
changeset
|
501 //Access to Z80 memory incurs a one 68K cycle wait state |
74e161fe7d39
Small tweaks to timing of 68K/Z80 interactions based on latest tests
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parents:
837
diff
changeset
|
502 context->current_cycle += MCLKS_PER_68K; |
668
5439ae7946ca
Made the Z80 core more contained by refactoring some code in blastem.c into z80_to_x86.c
Michael Pavone <pavone@retrodev.com>
parents:
667
diff
changeset
|
503 if (!z80_enabled || z80_get_busack(gen->z80, context->current_cycle)) { |
153
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Implement access to Z80 RAM
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|
504 location &= 0x7FFF; |
42c031184e8a
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diff
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|
505 if (location < 0x4000) { |
42c031184e8a
Implement access to Z80 RAM
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diff
changeset
|
506 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
|
507 #ifndef NO_Z80 |
288
a8ee7934a1f8
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parents:
280
diff
changeset
|
508 z80_handle_code_write(location & 0x1FFF, gen->z80); |
548
a3afee2271ce
Initial work on the x86-32 target
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parents:
534
diff
changeset
|
509 #endif |
288
a8ee7934a1f8
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280
diff
changeset
|
510 } else if (location < 0x6000) { |
667
30ccf56842d6
All cycle counters are now based off the master clock. This seems to have messed up Z80 interrupt timing (music in Sonic 2 is too slow for instance), but things are generally working
Michael Pavone <pavone@retrodev.com>
parents:
661
diff
changeset
|
511 sync_sound(gen, context->current_cycle); |
288
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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diff
changeset
|
512 if (location & 1) { |
a8ee7934a1f8
Add a YM2612 stub implementation with just timers and status registers so that games that depend on it can run.
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parents:
280
diff
changeset
|
513 ym_data_write(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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diff
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|
514 } else if(location & 2) { |
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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diff
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|
515 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.
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diff
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|
516 } 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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diff
changeset
|
517 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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diff
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|
518 } |
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
|
519 } 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
|
520 gen->z80->bank_reg = (gen->z80->bank_reg >> 1 | value << 8) & 0x1FF; |
042c4ba4a838
Implement writes from 68K to Z80 bank register and make reads from port c control register return 0 again
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404
diff
changeset
|
521 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
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parents:
404
diff
changeset
|
522 gen->z80->mem_pointers[1] = (gen->z80->bank_reg << 15) + ((char *)gen->z80->mem_pointers[2]); |
042c4ba4a838
Implement writes from 68K to Z80 bank register and make reads from port c control register return 0 again
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parents:
404
diff
changeset
|
523 } else { |
042c4ba4a838
Implement writes from 68K to Z80 bank register and make reads from port c control register return 0 again
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parents:
404
diff
changeset
|
524 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
|
525 } |
395
0b5f93358a93
Add debugger command for saving Z80 RAM to a file
Mike Pavone <pavone@retrodev.com>
parents:
392
diff
changeset
|
526 } else { |
792
724bbec47f86
Use a new fatal_error function instead of calling fprintf and exit for fatal errors. This new function more gracefully handles the case in which BlastEm was not started from a terminal or disconnected from ther terminal (Windows).
Michael Pavone <pavone@retrodev.com>
parents:
787
diff
changeset
|
527 fatal_error("68K write to unhandled Z80 address %X\n", location); |
153
42c031184e8a
Implement access to Z80 RAM
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149
diff
changeset
|
528 } |
88
c339559f1d4f
Forgot to add blastem main file earlier
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parents:
diff
changeset
|
529 } |
c339559f1d4f
Forgot to add blastem main file earlier
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diff
changeset
|
530 } else { |
153
42c031184e8a
Implement access to Z80 RAM
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diff
changeset
|
531 location &= 0x1FFF; |
42c031184e8a
Implement access to Z80 RAM
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diff
changeset
|
532 if (location < 0x100) { |
42c031184e8a
Implement access to Z80 RAM
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149
diff
changeset
|
533 switch(location/2) |
42c031184e8a
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diff
changeset
|
534 { |
42c031184e8a
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149
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
Implement access to Z80 RAM
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parents:
149
diff
changeset
|
537 break; |
42c031184e8a
Implement access to Z80 RAM
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149
diff
changeset
|
538 case 0x2: |
421
d0cacb4ade0b
Move IO code to a separate file and do a tiny bit of refactoring
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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
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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
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|
553 } |
153
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|
554 } else { |
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|
555 if (location == 0x1100) { |
42c031184e8a
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diff
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|
556 if (value & 1) { |
271
969ee17471c5
Protect debug prints for busreq/reset regs with appropriate macros
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268
diff
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|
557 dputs("bus requesting Z80"); |
668
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Made the Z80 core more contained by refactoring some code in blastem.c into z80_to_x86.c
Michael Pavone <pavone@retrodev.com>
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667
diff
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|
558 if (z80_enabled) { |
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Made the Z80 core more contained by refactoring some code in blastem.c into z80_to_x86.c
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parents:
667
diff
changeset
|
559 z80_assert_busreq(gen->z80, context->current_cycle); |
677
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parents:
672
diff
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|
560 } else { |
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parents:
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diff
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|
561 gen->z80->busack = 1; |
153
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|
562 } |
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Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
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diff
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|
563 } else { |
668
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Made the Z80 core more contained by refactoring some code in blastem.c into z80_to_x86.c
Michael Pavone <pavone@retrodev.com>
parents:
667
diff
changeset
|
564 if (gen->z80->busreq) { |
271
969ee17471c5
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268
diff
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|
565 dputs("releasing z80 bus"); |
280 | 566 #ifdef DO_DEBUG_PRINT |
279
6be6056735a9
Fix native address lookup in bannked memory area
Mike Pavone <pavone@retrodev.com>
parents:
276
diff
changeset
|
567 char fname[20]; |
6be6056735a9
Fix native address lookup in bannked memory area
Mike Pavone <pavone@retrodev.com>
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diff
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|
568 sprintf(fname, "zram-%d", zram_counter++); |
6be6056735a9
Fix native address lookup in bannked memory area
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276
diff
changeset
|
569 FILE * f = fopen(fname, "wb"); |
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276
diff
changeset
|
570 fwrite(z80_ram, 1, sizeof(z80_ram), f); |
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Fix native address lookup in bannked memory area
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|
571 fclose(f); |
280 | 572 #endif |
260
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Initial stab at integartiong Z80 core
Mike Pavone <pavone@retrodev.com>
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diff
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|
573 } |
668
5439ae7946ca
Made the Z80 core more contained by refactoring some code in blastem.c into z80_to_x86.c
Michael Pavone <pavone@retrodev.com>
parents:
667
diff
changeset
|
574 if (z80_enabled) { |
5439ae7946ca
Made the Z80 core more contained by refactoring some code in blastem.c into z80_to_x86.c
Michael Pavone <pavone@retrodev.com>
parents:
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diff
changeset
|
575 z80_clear_busreq(gen->z80, context->current_cycle); |
677
687c1dd3bcb9
Fake busack when Z80 is disabled
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672
diff
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|
576 } else { |
687c1dd3bcb9
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Michael Pavone <pavone@retrodev.com>
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672
diff
changeset
|
577 gen->z80->busack = 0; |
668
5439ae7946ca
Made the Z80 core more contained by refactoring some code in blastem.c into z80_to_x86.c
Michael Pavone <pavone@retrodev.com>
parents:
667
diff
changeset
|
578 } |
88
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|
579 } |
153
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diff
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|
580 } else if (location == 0x1200) { |
667
30ccf56842d6
All cycle counters are now based off the master clock. This seems to have messed up Z80 interrupt timing (music in Sonic 2 is too slow for instance), but things are generally working
Michael Pavone <pavone@retrodev.com>
parents:
661
diff
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|
581 sync_z80(gen->z80, context->current_cycle); |
153
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diff
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|
582 if (value & 1) { |
668
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Made the Z80 core more contained by refactoring some code in blastem.c into z80_to_x86.c
Michael Pavone <pavone@retrodev.com>
parents:
667
diff
changeset
|
583 if (z80_enabled) { |
5439ae7946ca
Made the Z80 core more contained by refactoring some code in blastem.c into z80_to_x86.c
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parents:
667
diff
changeset
|
584 z80_clear_reset(gen->z80, context->current_cycle); |
5439ae7946ca
Made the Z80 core more contained by refactoring some code in blastem.c into z80_to_x86.c
Michael Pavone <pavone@retrodev.com>
parents:
667
diff
changeset
|
585 } else { |
5439ae7946ca
Made the Z80 core more contained by refactoring some code in blastem.c into z80_to_x86.c
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parents:
667
diff
changeset
|
586 gen->z80->reset = 0; |
153
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parents:
149
diff
changeset
|
587 } |
668
5439ae7946ca
Made the Z80 core more contained by refactoring some code in blastem.c into z80_to_x86.c
Michael Pavone <pavone@retrodev.com>
parents:
667
diff
changeset
|
588 } else { |
5439ae7946ca
Made the Z80 core more contained by refactoring some code in blastem.c into z80_to_x86.c
Michael Pavone <pavone@retrodev.com>
parents:
667
diff
changeset
|
589 if (z80_enabled) { |
5439ae7946ca
Made the Z80 core more contained by refactoring some code in blastem.c into z80_to_x86.c
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parents:
667
diff
changeset
|
590 z80_assert_reset(gen->z80, context->current_cycle); |
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Made the Z80 core more contained by refactoring some code in blastem.c into z80_to_x86.c
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parents:
667
diff
changeset
|
591 } else { |
5439ae7946ca
Made the Z80 core more contained by refactoring some code in blastem.c into z80_to_x86.c
Michael Pavone <pavone@retrodev.com>
parents:
667
diff
changeset
|
592 gen->z80->reset = 1; |
260
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Initial stab at integartiong Z80 core
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parents:
215
diff
changeset
|
593 } |
153
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149
diff
changeset
|
594 } |
88
c339559f1d4f
Forgot to add blastem main file earlier
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parents:
diff
changeset
|
595 } |
c339559f1d4f
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parents:
diff
changeset
|
596 } |
c339559f1d4f
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parents:
diff
changeset
|
597 } |
c339559f1d4f
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Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
598 return context; |
c339559f1d4f
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parents:
diff
changeset
|
599 } |
c339559f1d4f
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Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
600 |
c339559f1d4f
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Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
601 m68k_context * io_write_w(uint32_t location, m68k_context * context, uint16_t value) |
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
602 { |
404
88fa2ad53e64
Minor refactor of io_read functions to avoid duplication of logic between byte and word versions
Mike Pavone <pavone@retrodev.com>
parents:
402
diff
changeset
|
603 if (location < 0x10000 || (location & 0x1FFF) >= 0x100) { |
88fa2ad53e64
Minor refactor of io_read functions to avoid duplication of logic between byte and word versions
Mike Pavone <pavone@retrodev.com>
parents:
402
diff
changeset
|
604 return io_write(location, context, value >> 8); |
88
c339559f1d4f
Forgot to add blastem main file earlier
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parents:
diff
changeset
|
605 } else { |
404
88fa2ad53e64
Minor refactor of io_read functions to avoid duplication of logic between byte and word versions
Mike Pavone <pavone@retrodev.com>
parents:
402
diff
changeset
|
606 return io_write(location, context, value); |
88
c339559f1d4f
Forgot to add blastem main file earlier
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parents:
diff
changeset
|
607 } |
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
608 } |
c339559f1d4f
Forgot to add blastem main file earlier
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parents:
diff
changeset
|
609 |
130
0bdbffa9fe90
Make version register return correct value for USA
Mike Pavone <pavone@retrodev.com>
parents:
115
diff
changeset
|
610 #define USA 0x80 |
0bdbffa9fe90
Make version register return correct value for USA
Mike Pavone <pavone@retrodev.com>
parents:
115
diff
changeset
|
611 #define JAP 0x00 |
0bdbffa9fe90
Make version register return correct value for USA
Mike Pavone <pavone@retrodev.com>
parents:
115
diff
changeset
|
612 #define EUR 0xC0 |
0bdbffa9fe90
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parents:
115
diff
changeset
|
613 #define NO_DISK 0x20 |
0bdbffa9fe90
Make version register return correct value for USA
Mike Pavone <pavone@retrodev.com>
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115
diff
changeset
|
614 uint8_t version_reg = NO_DISK | USA; |
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Make version register return correct value for USA
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parents:
115
diff
changeset
|
615 |
343
467bfa17004a
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342
diff
changeset
|
616 uint8_t io_read(uint32_t location, m68k_context * context) |
88
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Forgot to add blastem main file earlier
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parents:
diff
changeset
|
617 { |
343
467bfa17004a
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342
diff
changeset
|
618 uint8_t value; |
288
a8ee7934a1f8
Add a YM2612 stub implementation with just timers and status registers so that games that depend on it can run.
Mike Pavone <pavone@retrodev.com>
parents:
280
diff
changeset
|
619 genesis_context *gen = context->system; |
153
42c031184e8a
Implement access to Z80 RAM
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parents:
149
diff
changeset
|
620 if (location < 0x10000) { |
844
74e161fe7d39
Small tweaks to timing of 68K/Z80 interactions based on latest tests
Michael Pavone <pavone@retrodev.com>
parents:
837
diff
changeset
|
621 //Access to Z80 memory incurs a one 68K cycle wait state |
74e161fe7d39
Small tweaks to timing of 68K/Z80 interactions based on latest tests
Michael Pavone <pavone@retrodev.com>
parents:
837
diff
changeset
|
622 context->current_cycle += MCLKS_PER_68K; |
668
5439ae7946ca
Made the Z80 core more contained by refactoring some code in blastem.c into z80_to_x86.c
Michael Pavone <pavone@retrodev.com>
parents:
667
diff
changeset
|
623 if (!z80_enabled || z80_get_busack(gen->z80, context->current_cycle)) { |
153
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Implement access to Z80 RAM
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parents:
149
diff
changeset
|
624 location &= 0x7FFF; |
42c031184e8a
Implement access to Z80 RAM
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parents:
149
diff
changeset
|
625 if (location < 0x4000) { |
343
467bfa17004a
Mostly working runtime generation of memory map read/write functions
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parents:
342
diff
changeset
|
626 value = z80_ram[location & 0x1FFF]; |
288
a8ee7934a1f8
Add a YM2612 stub implementation with just timers and status registers so that games that depend on it can run.
Mike Pavone <pavone@retrodev.com>
parents:
280
diff
changeset
|
627 } else if (location < 0x6000) { |
667
30ccf56842d6
All cycle counters are now based off the master clock. This seems to have messed up Z80 interrupt timing (music in Sonic 2 is too slow for instance), but things are generally working
Michael Pavone <pavone@retrodev.com>
parents:
661
diff
changeset
|
628 sync_sound(gen, context->current_cycle); |
343
467bfa17004a
Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents:
342
diff
changeset
|
629 value = ym_read_status(gen->ym); |
153
42c031184e8a
Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents:
149
diff
changeset
|
630 } else { |
343
467bfa17004a
Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents:
342
diff
changeset
|
631 value = 0xFF; |
467bfa17004a
Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents:
342
diff
changeset
|
632 } |
467bfa17004a
Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents:
342
diff
changeset
|
633 } else { |
467bfa17004a
Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents:
342
diff
changeset
|
634 value = 0xFF; |
467bfa17004a
Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents:
342
diff
changeset
|
635 } |
467bfa17004a
Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents:
342
diff
changeset
|
636 } else { |
467bfa17004a
Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents:
342
diff
changeset
|
637 location &= 0x1FFF; |
467bfa17004a
Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents:
342
diff
changeset
|
638 if (location < 0x100) { |
467bfa17004a
Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents:
342
diff
changeset
|
639 switch(location/2) |
467bfa17004a
Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents:
342
diff
changeset
|
640 { |
467bfa17004a
Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents:
342
diff
changeset
|
641 case 0x0: |
467bfa17004a
Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents:
342
diff
changeset
|
642 //version bits should be 0 for now since we're not emulating TMSS |
467bfa17004a
Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents:
342
diff
changeset
|
643 value = version_reg; |
467bfa17004a
Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents:
342
diff
changeset
|
644 break; |
467bfa17004a
Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents:
342
diff
changeset
|
645 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
|
646 value = io_data_read(gen->ports, context->current_cycle); |
343
467bfa17004a
Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents:
342
diff
changeset
|
647 break; |
467bfa17004a
Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents:
342
diff
changeset
|
648 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
|
649 value = io_data_read(gen->ports+1, context->current_cycle); |
343
467bfa17004a
Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents:
342
diff
changeset
|
650 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
|
651 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
|
652 value = io_data_read(gen->ports+2, context->current_cycle); |
343
467bfa17004a
Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents:
342
diff
changeset
|
653 break; |
467bfa17004a
Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents:
342
diff
changeset
|
654 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
|
655 value = gen->ports[0].control; |
343
467bfa17004a
Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents:
342
diff
changeset
|
656 break; |
467bfa17004a
Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents:
342
diff
changeset
|
657 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
|
658 value = gen->ports[1].control; |
343
467bfa17004a
Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents:
342
diff
changeset
|
659 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
|
660 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
|
661 value = gen->ports[2].control; |
405
042c4ba4a838
Implement writes from 68K to Z80 bank register and make reads from port c control register return 0 again
Mike Pavone <pavone@retrodev.com>
parents:
404
diff
changeset
|
662 break; |
343
467bfa17004a
Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents:
342
diff
changeset
|
663 default: |
467bfa17004a
Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents:
342
diff
changeset
|
664 value = 0xFF; |
153
42c031184e8a
Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents:
149
diff
changeset
|
665 } |
42c031184e8a
Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents:
149
diff
changeset
|
666 } else { |
343
467bfa17004a
Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents:
342
diff
changeset
|
667 if (location == 0x1100) { |
677
687c1dd3bcb9
Fake busack when Z80 is disabled
Michael Pavone <pavone@retrodev.com>
parents:
672
diff
changeset
|
668 value = z80_enabled ? !z80_get_busack(gen->z80, context->current_cycle) : !gen->z80->busack; |
753
cee1275f5d08
Lame placeholder support for floating bus bits of IO hardware. Needs to be replaced with prefetch based values
Michael Pavone <pavone@retrodev.com>
parents:
752
diff
changeset
|
669 //TODO: actual pre-fetch emulation |
cee1275f5d08
Lame placeholder support for floating bus bits of IO hardware. Needs to be replaced with prefetch based values
Michael Pavone <pavone@retrodev.com>
parents:
752
diff
changeset
|
670 value |= 0x4E; |
668
5439ae7946ca
Made the Z80 core more contained by refactoring some code in blastem.c into z80_to_x86.c
Michael Pavone <pavone@retrodev.com>
parents:
667
diff
changeset
|
671 dprintf("Byte read of BUSREQ returned %d @ %d (reset: %d)\n", value, context->current_cycle, gen->z80->reset); |
343
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Mostly working runtime generation of memory map read/write functions
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parents:
342
diff
changeset
|
672 } else if (location == 0x1200) { |
668
5439ae7946ca
Made the Z80 core more contained by refactoring some code in blastem.c into z80_to_x86.c
Michael Pavone <pavone@retrodev.com>
parents:
667
diff
changeset
|
673 value = !gen->z80->reset; |
343
467bfa17004a
Mostly working runtime generation of memory map read/write functions
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parents:
342
diff
changeset
|
674 } else { |
467bfa17004a
Mostly working runtime generation of memory map read/write functions
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parents:
342
diff
changeset
|
675 value = 0xFF; |
467bfa17004a
Mostly working runtime generation of memory map read/write functions
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342
diff
changeset
|
676 printf("Byte read of unknown IO location: %X\n", location); |
467bfa17004a
Mostly working runtime generation of memory map read/write functions
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parents:
342
diff
changeset
|
677 } |
467bfa17004a
Mostly working runtime generation of memory map read/write functions
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parents:
342
diff
changeset
|
678 } |
467bfa17004a
Mostly working runtime generation of memory map read/write functions
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parents:
342
diff
changeset
|
679 } |
467bfa17004a
Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents:
342
diff
changeset
|
680 return value; |
467bfa17004a
Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents:
342
diff
changeset
|
681 } |
467bfa17004a
Mostly working runtime generation of memory map read/write functions
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parents:
342
diff
changeset
|
682 |
467bfa17004a
Mostly working runtime generation of memory map read/write functions
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parents:
342
diff
changeset
|
683 uint16_t io_read_w(uint32_t location, m68k_context * context) |
467bfa17004a
Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents:
342
diff
changeset
|
684 { |
404
88fa2ad53e64
Minor refactor of io_read functions to avoid duplication of logic between byte and word versions
Mike Pavone <pavone@retrodev.com>
parents:
402
diff
changeset
|
685 uint16_t value = io_read(location, context); |
88fa2ad53e64
Minor refactor of io_read functions to avoid duplication of logic between byte and word versions
Mike Pavone <pavone@retrodev.com>
parents:
402
diff
changeset
|
686 if (location < 0x10000 || (location & 0x1FFF) < 0x100) { |
88fa2ad53e64
Minor refactor of io_read functions to avoid duplication of logic between byte and word versions
Mike Pavone <pavone@retrodev.com>
parents:
402
diff
changeset
|
687 value = value | (value << 8); |
88
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
688 } else { |
404
88fa2ad53e64
Minor refactor of io_read functions to avoid duplication of logic between byte and word versions
Mike Pavone <pavone@retrodev.com>
parents:
402
diff
changeset
|
689 value <<= 8; |
753
cee1275f5d08
Lame placeholder support for floating bus bits of IO hardware. Needs to be replaced with prefetch based values
Michael Pavone <pavone@retrodev.com>
parents:
752
diff
changeset
|
690 //TODO: actual pre-fetch emulation |
cee1275f5d08
Lame placeholder support for floating bus bits of IO hardware. Needs to be replaced with prefetch based values
Michael Pavone <pavone@retrodev.com>
parents:
752
diff
changeset
|
691 value |= 0x73; |
88
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
692 } |
343
467bfa17004a
Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents:
342
diff
changeset
|
693 return value; |
88
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
694 } |
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
695 |
592
4ff7bbb3943b
Get rest of emulator compiling again with Z80 core enabled
Michael Pavone <pavone@retrodev.com>
parents:
590
diff
changeset
|
696 void * z80_write_ym(uint32_t location, void * vcontext, uint8_t value) |
290
171f97e70d85
Implement writes from Z80 to YM-2612
Mike Pavone <pavone@retrodev.com>
parents:
289
diff
changeset
|
697 { |
592
4ff7bbb3943b
Get rest of emulator compiling again with Z80 core enabled
Michael Pavone <pavone@retrodev.com>
parents:
590
diff
changeset
|
698 z80_context * context = vcontext; |
290
171f97e70d85
Implement writes from Z80 to YM-2612
Mike Pavone <pavone@retrodev.com>
parents:
289
diff
changeset
|
699 genesis_context * gen = context->system; |
667
30ccf56842d6
All cycle counters are now based off the master clock. This seems to have messed up Z80 interrupt timing (music in Sonic 2 is too slow for instance), but things are generally working
Michael Pavone <pavone@retrodev.com>
parents:
661
diff
changeset
|
700 sync_sound(gen, context->current_cycle); |
290
171f97e70d85
Implement writes from Z80 to YM-2612
Mike Pavone <pavone@retrodev.com>
parents:
289
diff
changeset
|
701 if (location & 1) { |
171f97e70d85
Implement writes from Z80 to YM-2612
Mike Pavone <pavone@retrodev.com>
parents:
289
diff
changeset
|
702 ym_data_write(gen->ym, value); |
171f97e70d85
Implement writes from Z80 to YM-2612
Mike Pavone <pavone@retrodev.com>
parents:
289
diff
changeset
|
703 } else if (location & 2) { |
171f97e70d85
Implement writes from Z80 to YM-2612
Mike Pavone <pavone@retrodev.com>
parents:
289
diff
changeset
|
704 ym_address_write_part2(gen->ym, value); |
171f97e70d85
Implement writes from Z80 to YM-2612
Mike Pavone <pavone@retrodev.com>
parents:
289
diff
changeset
|
705 } else { |
171f97e70d85
Implement writes from Z80 to YM-2612
Mike Pavone <pavone@retrodev.com>
parents:
289
diff
changeset
|
706 ym_address_write_part1(gen->ym, value); |
171f97e70d85
Implement writes from Z80 to YM-2612
Mike Pavone <pavone@retrodev.com>
parents:
289
diff
changeset
|
707 } |
171f97e70d85
Implement writes from Z80 to YM-2612
Mike Pavone <pavone@retrodev.com>
parents:
289
diff
changeset
|
708 return context; |
171f97e70d85
Implement writes from Z80 to YM-2612
Mike Pavone <pavone@retrodev.com>
parents:
289
diff
changeset
|
709 } |
171f97e70d85
Implement writes from Z80 to YM-2612
Mike Pavone <pavone@retrodev.com>
parents:
289
diff
changeset
|
710 |
592
4ff7bbb3943b
Get rest of emulator compiling again with Z80 core enabled
Michael Pavone <pavone@retrodev.com>
parents:
590
diff
changeset
|
711 uint8_t z80_read_ym(uint32_t location, void * vcontext) |
290
171f97e70d85
Implement writes from Z80 to YM-2612
Mike Pavone <pavone@retrodev.com>
parents:
289
diff
changeset
|
712 { |
592
4ff7bbb3943b
Get rest of emulator compiling again with Z80 core enabled
Michael Pavone <pavone@retrodev.com>
parents:
590
diff
changeset
|
713 z80_context * context = vcontext; |
290
171f97e70d85
Implement writes from Z80 to YM-2612
Mike Pavone <pavone@retrodev.com>
parents:
289
diff
changeset
|
714 genesis_context * gen = context->system; |
667
30ccf56842d6
All cycle counters are now based off the master clock. This seems to have messed up Z80 interrupt timing (music in Sonic 2 is too slow for instance), but things are generally working
Michael Pavone <pavone@retrodev.com>
parents:
661
diff
changeset
|
715 sync_sound(gen, context->current_cycle); |
290
171f97e70d85
Implement writes from Z80 to YM-2612
Mike Pavone <pavone@retrodev.com>
parents:
289
diff
changeset
|
716 return ym_read_status(gen->ym); |
171f97e70d85
Implement writes from Z80 to YM-2612
Mike Pavone <pavone@retrodev.com>
parents:
289
diff
changeset
|
717 } |
171f97e70d85
Implement writes from Z80 to YM-2612
Mike Pavone <pavone@retrodev.com>
parents:
289
diff
changeset
|
718 |
592
4ff7bbb3943b
Get rest of emulator compiling again with Z80 core enabled
Michael Pavone <pavone@retrodev.com>
parents:
590
diff
changeset
|
719 uint8_t z80_read_bank(uint32_t location, void * vcontext) |
4ff7bbb3943b
Get rest of emulator compiling again with Z80 core enabled
Michael Pavone <pavone@retrodev.com>
parents:
590
diff
changeset
|
720 { |
4ff7bbb3943b
Get rest of emulator compiling again with Z80 core enabled
Michael Pavone <pavone@retrodev.com>
parents:
590
diff
changeset
|
721 z80_context * context = vcontext; |
672
18ef3b61e70b
Restore emulation of Z80 being locked out of the 68K bus during DMA and the like
Michael Pavone <pavone@retrodev.com>
parents:
671
diff
changeset
|
722 genesis_context *gen = context->system; |
18ef3b61e70b
Restore emulation of Z80 being locked out of the 68K bus during DMA and the like
Michael Pavone <pavone@retrodev.com>
parents:
671
diff
changeset
|
723 if (gen->bus_busy) { |
18ef3b61e70b
Restore emulation of Z80 being locked out of the 68K bus during DMA and the like
Michael Pavone <pavone@retrodev.com>
parents:
671
diff
changeset
|
724 context->current_cycle = context->sync_cycle; |
18ef3b61e70b
Restore emulation of Z80 being locked out of the 68K bus during DMA and the like
Michael Pavone <pavone@retrodev.com>
parents:
671
diff
changeset
|
725 } |
660
e7cae6d9aaa6
Add the 3 cycle delay back in to Z80 bank area access
Michael Pavone <pavone@retrodev.com>
parents:
659
diff
changeset
|
726 //typical delay from bus arbitration |
671
8ad39a2b0bce
Fix bank area access delay for master clock change
Michael Pavone <pavone@retrodev.com>
parents:
670
diff
changeset
|
727 context->current_cycle += 3 * MCLKS_PER_Z80; |
672
18ef3b61e70b
Restore emulation of Z80 being locked out of the 68K bus during DMA and the like
Michael Pavone <pavone@retrodev.com>
parents:
671
diff
changeset
|
728 //TODO: add cycle for an access right after a previous one |
736
535e97bad27f
Implement cycles being stolen from 68K when the Z80 accesses the bank area or VDP/PSG. Small fix to code that tries to get system into a consistent state for a savestate
Michael Pavone <pavone@retrodev.com>
parents:
721
diff
changeset
|
729 //TODO: Below cycle time is an estimate based on the time between 68K !BG goes low and Z80 !MREQ goes high |
535e97bad27f
Implement cycles being stolen from 68K when the Z80 accesses the bank area or VDP/PSG. Small fix to code that tries to get system into a consistent state for a savestate
Michael Pavone <pavone@retrodev.com>
parents:
721
diff
changeset
|
730 // Needs a new logic analyzer capture to get the actual delay on the 68K side |
535e97bad27f
Implement cycles being stolen from 68K when the Z80 accesses the bank area or VDP/PSG. Small fix to code that tries to get system into a consistent state for a savestate
Michael Pavone <pavone@retrodev.com>
parents:
721
diff
changeset
|
731 gen->m68k->current_cycle += 8 * MCLKS_PER_68K; |
667
30ccf56842d6
All cycle counters are now based off the master clock. This seems to have messed up Z80 interrupt timing (music in Sonic 2 is too slow for instance), but things are generally working
Michael Pavone <pavone@retrodev.com>
parents:
661
diff
changeset
|
732 |
660
e7cae6d9aaa6
Add the 3 cycle delay back in to Z80 bank area access
Michael Pavone <pavone@retrodev.com>
parents:
659
diff
changeset
|
733 location &= 0x7FFF; |
e7cae6d9aaa6
Add the 3 cycle delay back in to Z80 bank area access
Michael Pavone <pavone@retrodev.com>
parents:
659
diff
changeset
|
734 if (context->mem_pointers[1]) { |
e7cae6d9aaa6
Add the 3 cycle delay back in to Z80 bank area access
Michael Pavone <pavone@retrodev.com>
parents:
659
diff
changeset
|
735 return context->mem_pointers[1][location ^ 1]; |
e7cae6d9aaa6
Add the 3 cycle delay back in to Z80 bank area access
Michael Pavone <pavone@retrodev.com>
parents:
659
diff
changeset
|
736 } |
604
39d7d463ed5b
Get Z80 banked access sort of working again
Michael Pavone <pavone@retrodev.com>
parents:
602
diff
changeset
|
737 uint32_t address = context->bank_reg << 15 | location; |
616
649db9397fa1
Add support for Z80 access to VDP via bank area
Michael Pavone <pavone@retrodev.com>
parents:
606
diff
changeset
|
738 if (address >= 0xC00000 && address < 0xE00000) { |
649db9397fa1
Add support for Z80 access to VDP via bank area
Michael Pavone <pavone@retrodev.com>
parents:
606
diff
changeset
|
739 return z80_vdp_port_read(location & 0xFF, context); |
649db9397fa1
Add support for Z80 access to VDP via bank area
Michael Pavone <pavone@retrodev.com>
parents:
606
diff
changeset
|
740 } else { |
660
e7cae6d9aaa6
Add the 3 cycle delay back in to Z80 bank area access
Michael Pavone <pavone@retrodev.com>
parents:
659
diff
changeset
|
741 fprintf(stderr, "Unhandled read by Z80 from address %X through banked memory area (%X)\n", address, context->bank_reg << 15); |
616
649db9397fa1
Add support for Z80 access to VDP via bank area
Michael Pavone <pavone@retrodev.com>
parents:
606
diff
changeset
|
742 } |
592
4ff7bbb3943b
Get rest of emulator compiling again with Z80 core enabled
Michael Pavone <pavone@retrodev.com>
parents:
590
diff
changeset
|
743 return 0; |
4ff7bbb3943b
Get rest of emulator compiling again with Z80 core enabled
Michael Pavone <pavone@retrodev.com>
parents:
590
diff
changeset
|
744 } |
4ff7bbb3943b
Get rest of emulator compiling again with Z80 core enabled
Michael Pavone <pavone@retrodev.com>
parents:
590
diff
changeset
|
745 |
4ff7bbb3943b
Get rest of emulator compiling again with Z80 core enabled
Michael Pavone <pavone@retrodev.com>
parents:
590
diff
changeset
|
746 void *z80_write_bank(uint32_t location, void * vcontext, uint8_t value) |
290
171f97e70d85
Implement writes from Z80 to YM-2612
Mike Pavone <pavone@retrodev.com>
parents:
289
diff
changeset
|
747 { |
592
4ff7bbb3943b
Get rest of emulator compiling again with Z80 core enabled
Michael Pavone <pavone@retrodev.com>
parents:
590
diff
changeset
|
748 z80_context * context = vcontext; |
672
18ef3b61e70b
Restore emulation of Z80 being locked out of the 68K bus during DMA and the like
Michael Pavone <pavone@retrodev.com>
parents:
671
diff
changeset
|
749 genesis_context *gen = context->system; |
18ef3b61e70b
Restore emulation of Z80 being locked out of the 68K bus during DMA and the like
Michael Pavone <pavone@retrodev.com>
parents:
671
diff
changeset
|
750 if (gen->bus_busy) { |
18ef3b61e70b
Restore emulation of Z80 being locked out of the 68K bus during DMA and the like
Michael Pavone <pavone@retrodev.com>
parents:
671
diff
changeset
|
751 context->current_cycle = context->sync_cycle; |
18ef3b61e70b
Restore emulation of Z80 being locked out of the 68K bus during DMA and the like
Michael Pavone <pavone@retrodev.com>
parents:
671
diff
changeset
|
752 } |
660
e7cae6d9aaa6
Add the 3 cycle delay back in to Z80 bank area access
Michael Pavone <pavone@retrodev.com>
parents:
659
diff
changeset
|
753 //typical delay from bus arbitration |
671
8ad39a2b0bce
Fix bank area access delay for master clock change
Michael Pavone <pavone@retrodev.com>
parents:
670
diff
changeset
|
754 context->current_cycle += 3 * MCLKS_PER_Z80; |
672
18ef3b61e70b
Restore emulation of Z80 being locked out of the 68K bus during DMA and the like
Michael Pavone <pavone@retrodev.com>
parents:
671
diff
changeset
|
755 //TODO: add cycle for an access right after a previous one |
736
535e97bad27f
Implement cycles being stolen from 68K when the Z80 accesses the bank area or VDP/PSG. Small fix to code that tries to get system into a consistent state for a savestate
Michael Pavone <pavone@retrodev.com>
parents:
721
diff
changeset
|
756 //TODO: Below cycle time is an estimate based on the time between 68K !BG goes low and Z80 !MREQ goes high |
535e97bad27f
Implement cycles being stolen from 68K when the Z80 accesses the bank area or VDP/PSG. Small fix to code that tries to get system into a consistent state for a savestate
Michael Pavone <pavone@retrodev.com>
parents:
721
diff
changeset
|
757 // Needs a new logic analyzer capture to get the actual delay on the 68K side |
535e97bad27f
Implement cycles being stolen from 68K when the Z80 accesses the bank area or VDP/PSG. Small fix to code that tries to get system into a consistent state for a savestate
Michael Pavone <pavone@retrodev.com>
parents:
721
diff
changeset
|
758 gen->m68k->current_cycle += 8 * MCLKS_PER_68K; |
672
18ef3b61e70b
Restore emulation of Z80 being locked out of the 68K bus during DMA and the like
Michael Pavone <pavone@retrodev.com>
parents:
671
diff
changeset
|
759 |
660
e7cae6d9aaa6
Add the 3 cycle delay back in to Z80 bank area access
Michael Pavone <pavone@retrodev.com>
parents:
659
diff
changeset
|
760 location &= 0x7FFF; |
604
39d7d463ed5b
Get Z80 banked access sort of working again
Michael Pavone <pavone@retrodev.com>
parents:
602
diff
changeset
|
761 uint32_t address = context->bank_reg << 15 | location; |
39d7d463ed5b
Get Z80 banked access sort of working again
Michael Pavone <pavone@retrodev.com>
parents:
602
diff
changeset
|
762 if (address >= 0xE00000) { |
39d7d463ed5b
Get Z80 banked access sort of working again
Michael Pavone <pavone@retrodev.com>
parents:
602
diff
changeset
|
763 address &= 0xFFFF; |
39d7d463ed5b
Get Z80 banked access sort of working again
Michael Pavone <pavone@retrodev.com>
parents:
602
diff
changeset
|
764 ((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
|
765 } else if (address >= 0xC00000) { |
649db9397fa1
Add support for Z80 access to VDP via bank area
Michael Pavone <pavone@retrodev.com>
parents:
606
diff
changeset
|
766 z80_vdp_port_write(location & 0xFF, context, value); |
604
39d7d463ed5b
Get Z80 banked access sort of working again
Michael Pavone <pavone@retrodev.com>
parents:
602
diff
changeset
|
767 } else { |
39d7d463ed5b
Get Z80 banked access sort of working again
Michael Pavone <pavone@retrodev.com>
parents:
602
diff
changeset
|
768 fprintf(stderr, "Unhandled write by Z80 to address %X through banked memory area\n", address); |
39d7d463ed5b
Get Z80 banked access sort of working again
Michael Pavone <pavone@retrodev.com>
parents:
602
diff
changeset
|
769 } |
39d7d463ed5b
Get Z80 banked access sort of working again
Michael Pavone <pavone@retrodev.com>
parents:
602
diff
changeset
|
770 return context; |
39d7d463ed5b
Get Z80 banked access sort of working again
Michael Pavone <pavone@retrodev.com>
parents:
602
diff
changeset
|
771 } |
39d7d463ed5b
Get Z80 banked access sort of working again
Michael Pavone <pavone@retrodev.com>
parents:
602
diff
changeset
|
772 |
39d7d463ed5b
Get Z80 banked access sort of working again
Michael Pavone <pavone@retrodev.com>
parents:
602
diff
changeset
|
773 void *z80_write_bank_reg(uint32_t location, void * vcontext, uint8_t value) |
39d7d463ed5b
Get Z80 banked access sort of working again
Michael Pavone <pavone@retrodev.com>
parents:
602
diff
changeset
|
774 { |
39d7d463ed5b
Get Z80 banked access sort of working again
Michael Pavone <pavone@retrodev.com>
parents:
602
diff
changeset
|
775 z80_context * context = vcontext; |
667
30ccf56842d6
All cycle counters are now based off the master clock. This seems to have messed up Z80 interrupt timing (music in Sonic 2 is too slow for instance), but things are generally working
Michael Pavone <pavone@retrodev.com>
parents:
661
diff
changeset
|
776 |
604
39d7d463ed5b
Get Z80 banked access sort of working again
Michael Pavone <pavone@retrodev.com>
parents:
602
diff
changeset
|
777 context->bank_reg = (context->bank_reg >> 1 | value << 8) & 0x1FF; |
777
79b10b421d3c
Support large flat-mapped ROMs like Bad Apple or that Mortal Kombat hack
Michael Pavone <pavone@retrodev.com>
parents:
776
diff
changeset
|
778 if (context->bank_reg < 0x100) { |
660
e7cae6d9aaa6
Add the 3 cycle delay back in to Z80 bank area access
Michael Pavone <pavone@retrodev.com>
parents:
659
diff
changeset
|
779 genesis_context *gen = context->system; |
e7cae6d9aaa6
Add the 3 cycle delay back in to Z80 bank area access
Michael Pavone <pavone@retrodev.com>
parents:
659
diff
changeset
|
780 context->mem_pointers[1] = get_native_pointer(context->bank_reg << 15, (void **)gen->m68k->mem_pointers, &gen->m68k->options->gen); |
604
39d7d463ed5b
Get Z80 banked access sort of working again
Michael Pavone <pavone@retrodev.com>
parents:
602
diff
changeset
|
781 } else { |
39d7d463ed5b
Get Z80 banked access sort of working again
Michael Pavone <pavone@retrodev.com>
parents:
602
diff
changeset
|
782 context->mem_pointers[1] = NULL; |
39d7d463ed5b
Get Z80 banked access sort of working again
Michael Pavone <pavone@retrodev.com>
parents:
602
diff
changeset
|
783 } |
667
30ccf56842d6
All cycle counters are now based off the master clock. This seems to have messed up Z80 interrupt timing (music in Sonic 2 is too slow for instance), but things are generally working
Michael Pavone <pavone@retrodev.com>
parents:
661
diff
changeset
|
784 |
592
4ff7bbb3943b
Get rest of emulator compiling again with Z80 core enabled
Michael Pavone <pavone@retrodev.com>
parents:
590
diff
changeset
|
785 return context; |
290
171f97e70d85
Implement writes from Z80 to YM-2612
Mike Pavone <pavone@retrodev.com>
parents:
289
diff
changeset
|
786 } |
171f97e70d85
Implement writes from Z80 to YM-2612
Mike Pavone <pavone@retrodev.com>
parents:
289
diff
changeset
|
787 |
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
|
788 void set_speed_percent(genesis_context * context, uint32_t percent) |
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
|
789 { |
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
|
790 uint32_t old_clock = context->master_clock; |
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
|
791 context->master_clock = ((uint64_t)context->normal_clock * (uint64_t)percent) / 100; |
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
|
792 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
Mike Pavone <pavone@retrodev.com>
parents:
482
diff
changeset
|
793 sync_sound(context, context->psg->cycles + MCLKS_PER_PSG); |
424
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
794 } |
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
|
795 ym_adjust_master_clock(context->ym, context->master_clock); |
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
|
796 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
Mike Pavone <pavone@retrodev.com>
parents:
482
diff
changeset
|
797 } |
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
|
798 |
767
ea525f600b1d
SRAM detection from ROM header is no working correctly again
Michael Pavone <pavone@retrodev.com>
parents:
766
diff
changeset
|
799 char * save_filename; |
874
b6842dfb8edf
ROM is now run after being selected in menu. Initial path for menu is read from config file.
Michael Pavone <pavone@retrodev.com>
parents:
872
diff
changeset
|
800 genesis_context *genesis; |
b6842dfb8edf
ROM is now run after being selected in menu. Initial path for menu is read from config file.
Michael Pavone <pavone@retrodev.com>
parents:
872
diff
changeset
|
801 genesis_context *menu_context; |
b6842dfb8edf
ROM is now run after being selected in menu. Initial path for menu is read from config file.
Michael Pavone <pavone@retrodev.com>
parents:
872
diff
changeset
|
802 genesis_context *game_context; |
767
ea525f600b1d
SRAM detection from ROM header is no working correctly again
Michael Pavone <pavone@retrodev.com>
parents:
766
diff
changeset
|
803 void persist_save() |
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
|
804 { |
767
ea525f600b1d
SRAM detection from ROM header is no working correctly again
Michael Pavone <pavone@retrodev.com>
parents:
766
diff
changeset
|
805 FILE * f = fopen(save_filename, "wb"); |
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
|
806 if (!f) { |
767
ea525f600b1d
SRAM detection from ROM header is no working correctly again
Michael Pavone <pavone@retrodev.com>
parents:
766
diff
changeset
|
807 fprintf(stderr, "Failed to open %s file %s for writing\n", genesis->save_type == SAVE_I2C ? "EEPROM" : "SRAM", save_filename); |
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
|
808 return; |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
809 } |
767
ea525f600b1d
SRAM detection from ROM header is no working correctly again
Michael Pavone <pavone@retrodev.com>
parents:
766
diff
changeset
|
810 fwrite(genesis->save_storage, 1, genesis->save_size, f); |
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
|
811 fclose(f); |
767
ea525f600b1d
SRAM detection from ROM header is no working correctly again
Michael Pavone <pavone@retrodev.com>
parents:
766
diff
changeset
|
812 printf("Saved %s to %s\n", genesis->save_type == SAVE_I2C ? "EEPROM" : "SRAM", save_filename); |
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
|
813 } |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
814 |
874
b6842dfb8edf
ROM is now run after being selected in menu. Initial path for menu is read from config file.
Michael Pavone <pavone@retrodev.com>
parents:
872
diff
changeset
|
815 #ifndef NO_Z80 |
b6842dfb8edf
ROM is now run after being selected in menu. Initial path for menu is read from config file.
Michael Pavone <pavone@retrodev.com>
parents:
872
diff
changeset
|
816 const memmap_chunk z80_map[] = { |
b6842dfb8edf
ROM is now run after being selected in menu. Initial path for menu is read from config file.
Michael Pavone <pavone@retrodev.com>
parents:
872
diff
changeset
|
817 { 0x0000, 0x4000, 0x1FFF, 0, MMAP_READ | MMAP_WRITE | MMAP_CODE, z80_ram, NULL, NULL, NULL, NULL }, |
b6842dfb8edf
ROM is now run after being selected in menu. Initial path for menu is read from config file.
Michael Pavone <pavone@retrodev.com>
parents:
872
diff
changeset
|
818 { 0x8000, 0x10000, 0x7FFF, 0, 0, NULL, NULL, NULL, z80_read_bank, z80_write_bank}, |
b6842dfb8edf
ROM is now run after being selected in menu. Initial path for menu is read from config file.
Michael Pavone <pavone@retrodev.com>
parents:
872
diff
changeset
|
819 { 0x4000, 0x6000, 0x0003, 0, 0, NULL, NULL, NULL, z80_read_ym, z80_write_ym}, |
b6842dfb8edf
ROM is now run after being selected in menu. Initial path for menu is read from config file.
Michael Pavone <pavone@retrodev.com>
parents:
872
diff
changeset
|
820 { 0x6000, 0x6100, 0xFFFF, 0, 0, NULL, NULL, NULL, NULL, z80_write_bank_reg}, |
b6842dfb8edf
ROM is now run after being selected in menu. Initial path for menu is read from config file.
Michael Pavone <pavone@retrodev.com>
parents:
872
diff
changeset
|
821 { 0x7F00, 0x8000, 0x00FF, 0, 0, NULL, NULL, NULL, z80_vdp_port_read, z80_vdp_port_write} |
b6842dfb8edf
ROM is now run after being selected in menu. Initial path for menu is read from config file.
Michael Pavone <pavone@retrodev.com>
parents:
872
diff
changeset
|
822 }; |
b6842dfb8edf
ROM is now run after being selected in menu. Initial path for menu is read from config file.
Michael Pavone <pavone@retrodev.com>
parents:
872
diff
changeset
|
823 #endif |
b6842dfb8edf
ROM is now run after being selected in menu. Initial path for menu is read from config file.
Michael Pavone <pavone@retrodev.com>
parents:
872
diff
changeset
|
824 |
b6842dfb8edf
ROM is now run after being selected in menu. Initial path for menu is read from config file.
Michael Pavone <pavone@retrodev.com>
parents:
872
diff
changeset
|
825 genesis_context *alloc_init_genesis(rom_info *rom, int fps, uint32_t ym_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
|
826 { |
874
b6842dfb8edf
ROM is now run after being selected in menu. Initial path for menu is read from config file.
Michael Pavone <pavone@retrodev.com>
parents:
872
diff
changeset
|
827 genesis_context *gen = calloc(1, sizeof(genesis_context)); |
b6842dfb8edf
ROM is now run after being selected in menu. Initial path for menu is read from config file.
Michael Pavone <pavone@retrodev.com>
parents:
872
diff
changeset
|
828 gen->master_clock = gen->normal_clock = fps == 60 ? MCLKS_NTSC : MCLKS_PAL; |
b6842dfb8edf
ROM is now run after being selected in menu. Initial path for menu is read from config file.
Michael Pavone <pavone@retrodev.com>
parents:
872
diff
changeset
|
829 |
b6842dfb8edf
ROM is now run after being selected in menu. Initial path for menu is read from config file.
Michael Pavone <pavone@retrodev.com>
parents:
872
diff
changeset
|
830 gen->vdp = malloc(sizeof(vdp_context)); |
b6842dfb8edf
ROM is now run after being selected in menu. Initial path for menu is read from config file.
Michael Pavone <pavone@retrodev.com>
parents:
872
diff
changeset
|
831 init_vdp_context(gen->vdp, version_reg & 0x40); |
b6842dfb8edf
ROM is now run after being selected in menu. Initial path for menu is read from config file.
Michael Pavone <pavone@retrodev.com>
parents:
872
diff
changeset
|
832 gen->frame_end = vdp_cycles_to_frame_end(gen->vdp); |
b6842dfb8edf
ROM is now run after being selected in menu. Initial path for menu is read from config file.
Michael Pavone <pavone@retrodev.com>
parents:
872
diff
changeset
|
833 char * config_cycles = tern_find_path(config, "clocks\0max_cycles\0").ptrval; |
b6842dfb8edf
ROM is now run after being selected in menu. Initial path for menu is read from config file.
Michael Pavone <pavone@retrodev.com>
parents:
872
diff
changeset
|
834 gen->max_cycles = config_cycles ? atoi(config_cycles) : DEFAULT_SYNC_INTERVAL; |
b6842dfb8edf
ROM is now run after being selected in menu. Initial path for menu is read from config file.
Michael Pavone <pavone@retrodev.com>
parents:
872
diff
changeset
|
835 |
b6842dfb8edf
ROM is now run after being selected in menu. Initial path for menu is read from config file.
Michael Pavone <pavone@retrodev.com>
parents:
872
diff
changeset
|
836 gen->ym = malloc(sizeof(ym2612_context)); |
b6842dfb8edf
ROM is now run after being selected in menu. Initial path for menu is read from config file.
Michael Pavone <pavone@retrodev.com>
parents:
872
diff
changeset
|
837 ym_init(gen->ym, render_sample_rate(), gen->master_clock, MCLKS_PER_YM, render_audio_buffer(), ym_opts); |
b6842dfb8edf
ROM is now run after being selected in menu. Initial path for menu is read from config file.
Michael Pavone <pavone@retrodev.com>
parents:
872
diff
changeset
|
838 |
b6842dfb8edf
ROM is now run after being selected in menu. Initial path for menu is read from config file.
Michael Pavone <pavone@retrodev.com>
parents:
872
diff
changeset
|
839 gen->psg = malloc(sizeof(psg_context)); |
b6842dfb8edf
ROM is now run after being selected in menu. Initial path for menu is read from config file.
Michael Pavone <pavone@retrodev.com>
parents:
872
diff
changeset
|
840 psg_init(gen->psg, render_sample_rate(), gen->master_clock, MCLKS_PER_PSG, render_audio_buffer()); |
832
0433fdd9ba66
Added a command line option to force BlastEm to not open a new terminal even if it detects that stdin/out are not terminals
Michael Pavone <pavone@retrodev.com>
parents:
819
diff
changeset
|
841 |
874
b6842dfb8edf
ROM is now run after being selected in menu. Initial path for menu is read from config file.
Michael Pavone <pavone@retrodev.com>
parents:
872
diff
changeset
|
842 gen->z80 = calloc(1, sizeof(z80_context)); |
b6842dfb8edf
ROM is now run after being selected in menu. Initial path for menu is read from config file.
Michael Pavone <pavone@retrodev.com>
parents:
872
diff
changeset
|
843 #ifndef NO_Z80 |
b6842dfb8edf
ROM is now run after being selected in menu. Initial path for menu is read from config file.
Michael Pavone <pavone@retrodev.com>
parents:
872
diff
changeset
|
844 z80_options *z_opts = malloc(sizeof(z80_options)); |
b6842dfb8edf
ROM is now run after being selected in menu. Initial path for menu is read from config file.
Michael Pavone <pavone@retrodev.com>
parents:
872
diff
changeset
|
845 init_z80_opts(z_opts, z80_map, 5, NULL, 0, MCLKS_PER_Z80); |
b6842dfb8edf
ROM is now run after being selected in menu. Initial path for menu is read from config file.
Michael Pavone <pavone@retrodev.com>
parents:
872
diff
changeset
|
846 init_z80_context(gen->z80, z_opts); |
b6842dfb8edf
ROM is now run after being selected in menu. Initial path for menu is read from config file.
Michael Pavone <pavone@retrodev.com>
parents:
872
diff
changeset
|
847 z80_assert_reset(gen->z80, 0); |
b6842dfb8edf
ROM is now run after being selected in menu. Initial path for menu is read from config file.
Michael Pavone <pavone@retrodev.com>
parents:
872
diff
changeset
|
848 #endif |
b6842dfb8edf
ROM is now run after being selected in menu. Initial path for menu is read from config file.
Michael Pavone <pavone@retrodev.com>
parents:
872
diff
changeset
|
849 |
b6842dfb8edf
ROM is now run after being selected in menu. Initial path for menu is read from config file.
Michael Pavone <pavone@retrodev.com>
parents:
872
diff
changeset
|
850 gen->z80->system = gen; |
b6842dfb8edf
ROM is now run after being selected in menu. Initial path for menu is read from config file.
Michael Pavone <pavone@retrodev.com>
parents:
872
diff
changeset
|
851 gen->z80->mem_pointers[0] = z80_ram; |
b6842dfb8edf
ROM is now run after being selected in menu. Initial path for menu is read from config file.
Michael Pavone <pavone@retrodev.com>
parents:
872
diff
changeset
|
852 gen->z80->mem_pointers[1] = gen->z80->mem_pointers[2] = (uint8_t *)cart; |
b6842dfb8edf
ROM is now run after being selected in menu. Initial path for menu is read from config file.
Michael Pavone <pavone@retrodev.com>
parents:
872
diff
changeset
|
853 |
883
9f149f0e98b7
It is now possible to switch back and forth between the menu ROM and the game
Michael Pavone <pavone@retrodev.com>
parents:
875
diff
changeset
|
854 gen->cart = cart; |
874
b6842dfb8edf
ROM is now run after being selected in menu. Initial path for menu is read from config file.
Michael Pavone <pavone@retrodev.com>
parents:
872
diff
changeset
|
855 gen->work_ram = ram; |
b6842dfb8edf
ROM is now run after being selected in menu. Initial path for menu is read from config file.
Michael Pavone <pavone@retrodev.com>
parents:
872
diff
changeset
|
856 gen->zram = z80_ram; |
b6842dfb8edf
ROM is now run after being selected in menu. Initial path for menu is read from config file.
Michael Pavone <pavone@retrodev.com>
parents:
872
diff
changeset
|
857 setup_io_devices(config, gen->ports); |
b6842dfb8edf
ROM is now run after being selected in menu. Initial path for menu is read from config file.
Michael Pavone <pavone@retrodev.com>
parents:
872
diff
changeset
|
858 |
b6842dfb8edf
ROM is now run after being selected in menu. Initial path for menu is read from config file.
Michael Pavone <pavone@retrodev.com>
parents:
872
diff
changeset
|
859 gen->save_type = rom->save_type; |
767
ea525f600b1d
SRAM detection from ROM header is no working correctly again
Michael Pavone <pavone@retrodev.com>
parents:
766
diff
changeset
|
860 gen->save_type = rom->save_type; |
ea525f600b1d
SRAM detection from ROM header is no working correctly again
Michael Pavone <pavone@retrodev.com>
parents:
766
diff
changeset
|
861 if (gen->save_type != SAVE_NONE) { |
ea525f600b1d
SRAM detection from ROM header is no working correctly again
Michael Pavone <pavone@retrodev.com>
parents:
766
diff
changeset
|
862 gen->save_ram_mask = rom->save_mask; |
ea525f600b1d
SRAM detection from ROM header is no working correctly again
Michael Pavone <pavone@retrodev.com>
parents:
766
diff
changeset
|
863 gen->save_size = rom->save_size; |
ea525f600b1d
SRAM detection from ROM header is no working correctly again
Michael Pavone <pavone@retrodev.com>
parents:
766
diff
changeset
|
864 gen->save_storage = rom->save_buffer; |
769
4638b88bc72d
Initial work on I2C EEPROM implementation
Michael Pavone <pavone@retrodev.com>
parents:
767
diff
changeset
|
865 gen->eeprom_map = rom->eeprom_map; |
4638b88bc72d
Initial work on I2C EEPROM implementation
Michael Pavone <pavone@retrodev.com>
parents:
767
diff
changeset
|
866 gen->num_eeprom = rom->num_eeprom; |
767
ea525f600b1d
SRAM detection from ROM header is no working correctly again
Michael Pavone <pavone@retrodev.com>
parents:
766
diff
changeset
|
867 FILE * f = fopen(save_filename, "rb"); |
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
|
868 if (f) { |
767
ea525f600b1d
SRAM detection from ROM header is no working correctly again
Michael Pavone <pavone@retrodev.com>
parents:
766
diff
changeset
|
869 uint32_t read = fread(gen->save_storage, 1, rom->save_size, f); |
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
|
870 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
|
871 if (read > 0) { |
767
ea525f600b1d
SRAM detection from ROM header is no working correctly again
Michael Pavone <pavone@retrodev.com>
parents:
766
diff
changeset
|
872 printf("Loaded %s from %s\n", rom->save_type == SAVE_I2C ? "EEPROM" : "SRAM", save_filename); |
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
|
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 } |
767
ea525f600b1d
SRAM detection from ROM header is no working correctly again
Michael Pavone <pavone@retrodev.com>
parents:
766
diff
changeset
|
875 atexit(persist_save); |
769
4638b88bc72d
Initial work on I2C EEPROM implementation
Michael Pavone <pavone@retrodev.com>
parents:
767
diff
changeset
|
876 if (gen->save_type == SAVE_I2C) { |
770 | 877 eeprom_init(&gen->eeprom, gen->save_storage, gen->save_size); |
769
4638b88bc72d
Initial work on I2C EEPROM implementation
Michael Pavone <pavone@retrodev.com>
parents:
767
diff
changeset
|
878 } |
767
ea525f600b1d
SRAM detection from ROM header is no working correctly again
Michael Pavone <pavone@retrodev.com>
parents:
766
diff
changeset
|
879 } else { |
ea525f600b1d
SRAM detection from ROM header is no working correctly again
Michael Pavone <pavone@retrodev.com>
parents:
766
diff
changeset
|
880 gen->save_storage = NULL; |
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
|
881 } |
832
0433fdd9ba66
Added a command line option to force BlastEm to not open a new terminal even if it detects that stdin/out are not terminals
Michael Pavone <pavone@retrodev.com>
parents:
819
diff
changeset
|
882 |
874
b6842dfb8edf
ROM is now run after being selected in menu. Initial path for menu is read from config file.
Michael Pavone <pavone@retrodev.com>
parents:
872
diff
changeset
|
883 m68k_options *opts = malloc(sizeof(m68k_options)); |
b6842dfb8edf
ROM is now run after being selected in menu. Initial path for menu is read from config file.
Michael Pavone <pavone@retrodev.com>
parents:
872
diff
changeset
|
884 init_m68k_opts(opts, rom->map, rom->map_chunks, MCLKS_PER_68K); |
b6842dfb8edf
ROM is now run after being selected in menu. Initial path for menu is read from config file.
Michael Pavone <pavone@retrodev.com>
parents:
872
diff
changeset
|
885 //TODO: make this configurable |
b6842dfb8edf
ROM is now run after being selected in menu. Initial path for menu is read from config file.
Michael Pavone <pavone@retrodev.com>
parents:
872
diff
changeset
|
886 opts->gen.flags |= M68K_OPT_BROKEN_READ_MODIFY; |
b6842dfb8edf
ROM is now run after being selected in menu. Initial path for menu is read from config file.
Michael Pavone <pavone@retrodev.com>
parents:
872
diff
changeset
|
887 gen->m68k = init_68k_context(opts); |
b6842dfb8edf
ROM is now run after being selected in menu. Initial path for menu is read from config file.
Michael Pavone <pavone@retrodev.com>
parents:
872
diff
changeset
|
888 gen->m68k->system = gen; |
488
32f053ad9b02
Basic OpenGL rendering is working
Mike Pavone <pavone@retrodev.com>
parents:
487
diff
changeset
|
889 |
776
cbf97d335444
Full support for Sega mapper when it comes to data. Code in remapped sections may not work reliably. SSF2 now works.
Michael Pavone <pavone@retrodev.com>
parents:
774
diff
changeset
|
890 for (int i = 0; i < rom->map_chunks; i++) |
cbf97d335444
Full support for Sega mapper when it comes to data. Code in remapped sections may not work reliably. SSF2 now works.
Michael Pavone <pavone@retrodev.com>
parents:
774
diff
changeset
|
891 { |
cbf97d335444
Full support for Sega mapper when it comes to data. Code in remapped sections may not work reliably. SSF2 now works.
Michael Pavone <pavone@retrodev.com>
parents:
774
diff
changeset
|
892 if (rom->map[i].flags & MMAP_PTR_IDX) { |
874
b6842dfb8edf
ROM is now run after being selected in menu. Initial path for menu is read from config file.
Michael Pavone <pavone@retrodev.com>
parents:
872
diff
changeset
|
893 gen->m68k->mem_pointers[rom->map[i].ptr_index] = rom->map[i].buffer; |
776
cbf97d335444
Full support for Sega mapper when it comes to data. Code in remapped sections may not work reliably. SSF2 now works.
Michael Pavone <pavone@retrodev.com>
parents:
774
diff
changeset
|
894 } |
cbf97d335444
Full support for Sega mapper when it comes to data. Code in remapped sections may not work reliably. SSF2 now works.
Michael Pavone <pavone@retrodev.com>
parents:
774
diff
changeset
|
895 } |
832
0433fdd9ba66
Added a command line option to force BlastEm to not open a new terminal even if it detects that stdin/out are not terminals
Michael Pavone <pavone@retrodev.com>
parents:
819
diff
changeset
|
896 |
874
b6842dfb8edf
ROM is now run after being selected in menu. Initial path for menu is read from config file.
Michael Pavone <pavone@retrodev.com>
parents:
872
diff
changeset
|
897 return gen; |
b6842dfb8edf
ROM is now run after being selected in menu. Initial path for menu is read from config file.
Michael Pavone <pavone@retrodev.com>
parents:
872
diff
changeset
|
898 } |
b6842dfb8edf
ROM is now run after being selected in menu. Initial path for menu is read from config file.
Michael Pavone <pavone@retrodev.com>
parents:
872
diff
changeset
|
899 |
884
252dfd29831d
Selecting a second game from the menu now works
Michael Pavone <pavone@retrodev.com>
parents:
883
diff
changeset
|
900 void free_genesis(genesis_context *gen) |
252dfd29831d
Selecting a second game from the menu now works
Michael Pavone <pavone@retrodev.com>
parents:
883
diff
changeset
|
901 { |
252dfd29831d
Selecting a second game from the menu now works
Michael Pavone <pavone@retrodev.com>
parents:
883
diff
changeset
|
902 vdp_free(gen->vdp); |
252dfd29831d
Selecting a second game from the menu now works
Michael Pavone <pavone@retrodev.com>
parents:
883
diff
changeset
|
903 m68k_options_free(gen->m68k->options); |
252dfd29831d
Selecting a second game from the menu now works
Michael Pavone <pavone@retrodev.com>
parents:
883
diff
changeset
|
904 free(gen->m68k); |
252dfd29831d
Selecting a second game from the menu now works
Michael Pavone <pavone@retrodev.com>
parents:
883
diff
changeset
|
905 z80_options_free(gen->z80->options); |
252dfd29831d
Selecting a second game from the menu now works
Michael Pavone <pavone@retrodev.com>
parents:
883
diff
changeset
|
906 free(gen->z80); |
252dfd29831d
Selecting a second game from the menu now works
Michael Pavone <pavone@retrodev.com>
parents:
883
diff
changeset
|
907 ym_free(gen->ym); |
252dfd29831d
Selecting a second game from the menu now works
Michael Pavone <pavone@retrodev.com>
parents:
883
diff
changeset
|
908 psg_free(gen->psg); |
252dfd29831d
Selecting a second game from the menu now works
Michael Pavone <pavone@retrodev.com>
parents:
883
diff
changeset
|
909 free(gen->save_storage); |
252dfd29831d
Selecting a second game from the menu now works
Michael Pavone <pavone@retrodev.com>
parents:
883
diff
changeset
|
910 } |
252dfd29831d
Selecting a second game from the menu now works
Michael Pavone <pavone@retrodev.com>
parents:
883
diff
changeset
|
911 |
874
b6842dfb8edf
ROM is now run after being selected in menu. Initial path for menu is read from config file.
Michael Pavone <pavone@retrodev.com>
parents:
872
diff
changeset
|
912 void start_genesis(genesis_context *gen, char *statefile, uint8_t *debugger) |
b6842dfb8edf
ROM is now run after being selected in menu. Initial path for menu is read from config file.
Michael Pavone <pavone@retrodev.com>
parents:
872
diff
changeset
|
913 { |
b6842dfb8edf
ROM is now run after being selected in menu. Initial path for menu is read from config file.
Michael Pavone <pavone@retrodev.com>
parents:
872
diff
changeset
|
914 |
424
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
915 if (statefile) { |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
916 uint32_t pc = load_gst(gen, statefile); |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
917 if (!pc) { |
792
724bbec47f86
Use a new fatal_error function instead of calling fprintf and exit for fatal errors. This new function more gracefully handles the case in which BlastEm was not started from a terminal or disconnected from ther terminal (Windows).
Michael Pavone <pavone@retrodev.com>
parents:
787
diff
changeset
|
918 fatal_error("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
|
919 } |
451
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
447
diff
changeset
|
920 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
|
921 if (debugger) { |
874
b6842dfb8edf
ROM is now run after being selected in menu. Initial path for menu is read from config file.
Michael Pavone <pavone@retrodev.com>
parents:
872
diff
changeset
|
922 insert_breakpoint(gen->m68k, pc, debugger); |
424
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
923 } |
451
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
447
diff
changeset
|
924 adjust_int_cycle(gen->m68k, gen->vdp); |
874
b6842dfb8edf
ROM is now run after being selected in menu. Initial path for menu is read from config file.
Michael Pavone <pavone@retrodev.com>
parents:
872
diff
changeset
|
925 start_68k_context(gen->m68k, pc); |
424
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
926 } 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
|
927 if (debugger) { |
752
296ddfcf0d43
Minor cleanup in init_run_cpu
Michael Pavone <pavone@retrodev.com>
parents:
736
diff
changeset
|
928 uint32_t address = cart[2] << 16 | cart[3]; |
874
b6842dfb8edf
ROM is now run after being selected in menu. Initial path for menu is read from config file.
Michael Pavone <pavone@retrodev.com>
parents:
872
diff
changeset
|
929 insert_breakpoint(gen->m68k, address, debugger); |
424
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
930 } |
874
b6842dfb8edf
ROM is now run after being selected in menu. Initial path for menu is read from config file.
Michael Pavone <pavone@retrodev.com>
parents:
872
diff
changeset
|
931 m68k_reset(gen->m68k); |
211 | 932 } |
933 } | |
934 | |
764
bb60259e8edf
Initial work on ROM database
Michael Pavone <pavone@retrodev.com>
parents:
753
diff
changeset
|
935 char *title; |
340
58a085cfc6bd
Set window title based on ROM header name
Mike Pavone <pavone@retrodev.com>
parents:
338
diff
changeset
|
936 |
764
bb60259e8edf
Initial work on ROM database
Michael Pavone <pavone@retrodev.com>
parents:
753
diff
changeset
|
937 void update_title(char *rom_name) |
340
58a085cfc6bd
Set window title based on ROM header name
Mike Pavone <pavone@retrodev.com>
parents:
338
diff
changeset
|
938 { |
764
bb60259e8edf
Initial work on ROM database
Michael Pavone <pavone@retrodev.com>
parents:
753
diff
changeset
|
939 if (title) { |
bb60259e8edf
Initial work on ROM database
Michael Pavone <pavone@retrodev.com>
parents:
753
diff
changeset
|
940 free(title); |
bb60259e8edf
Initial work on ROM database
Michael Pavone <pavone@retrodev.com>
parents:
753
diff
changeset
|
941 title = NULL; |
340
58a085cfc6bd
Set window title based on ROM header name
Mike Pavone <pavone@retrodev.com>
parents:
338
diff
changeset
|
942 } |
764
bb60259e8edf
Initial work on ROM database
Michael Pavone <pavone@retrodev.com>
parents:
753
diff
changeset
|
943 title = alloc_concat(rom_name, " - BlastEm"); |
874
b6842dfb8edf
ROM is now run after being selected in menu. Initial path for menu is read from config file.
Michael Pavone <pavone@retrodev.com>
parents:
872
diff
changeset
|
944 render_update_caption(title); |
340
58a085cfc6bd
Set window title based on ROM header name
Mike Pavone <pavone@retrodev.com>
parents:
338
diff
changeset
|
945 } |
58a085cfc6bd
Set window title based on ROM header name
Mike Pavone <pavone@retrodev.com>
parents:
338
diff
changeset
|
946 |
765
dc54387ee1cd
Allow regions to be set in ROM DB. Prefer default region if it is one of the valid regions for the ROM.
Michael Pavone <pavone@retrodev.com>
parents:
764
diff
changeset
|
947 void set_region(rom_info *info, uint8_t region) |
341
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
948 { |
765
dc54387ee1cd
Allow regions to be set in ROM DB. Prefer default region if it is one of the valid regions for the ROM.
Michael Pavone <pavone@retrodev.com>
parents:
764
diff
changeset
|
949 if (!region) { |
dc54387ee1cd
Allow regions to be set in ROM DB. Prefer default region if it is one of the valid regions for the ROM.
Michael Pavone <pavone@retrodev.com>
parents:
764
diff
changeset
|
950 char * def_region = tern_find_ptr(config, "default_region"); |
dc54387ee1cd
Allow regions to be set in ROM DB. Prefer default region if it is one of the valid regions for the ROM.
Michael Pavone <pavone@retrodev.com>
parents:
764
diff
changeset
|
951 if (def_region && (!info->regions || (info->regions & translate_region_char(toupper(*def_region))))) { |
dc54387ee1cd
Allow regions to be set in ROM DB. Prefer default region if it is one of the valid regions for the ROM.
Michael Pavone <pavone@retrodev.com>
parents:
764
diff
changeset
|
952 region = translate_region_char(toupper(*def_region)); |
dc54387ee1cd
Allow regions to be set in ROM DB. Prefer default region if it is one of the valid regions for the ROM.
Michael Pavone <pavone@retrodev.com>
parents:
764
diff
changeset
|
953 } else { |
dc54387ee1cd
Allow regions to be set in ROM DB. Prefer default region if it is one of the valid regions for the ROM.
Michael Pavone <pavone@retrodev.com>
parents:
764
diff
changeset
|
954 region = info->regions; |
dc54387ee1cd
Allow regions to be set in ROM DB. Prefer default region if it is one of the valid regions for the ROM.
Michael Pavone <pavone@retrodev.com>
parents:
764
diff
changeset
|
955 } |
dc54387ee1cd
Allow regions to be set in ROM DB. Prefer default region if it is one of the valid regions for the ROM.
Michael Pavone <pavone@retrodev.com>
parents:
764
diff
changeset
|
956 } |
dc54387ee1cd
Allow regions to be set in ROM DB. Prefer default region if it is one of the valid regions for the ROM.
Michael Pavone <pavone@retrodev.com>
parents:
764
diff
changeset
|
957 if (region & REGION_E) { |
dc54387ee1cd
Allow regions to be set in ROM DB. Prefer default region if it is one of the valid regions for the ROM.
Michael Pavone <pavone@retrodev.com>
parents:
764
diff
changeset
|
958 version_reg = NO_DISK | EUR; |
dc54387ee1cd
Allow regions to be set in ROM DB. Prefer default region if it is one of the valid regions for the ROM.
Michael Pavone <pavone@retrodev.com>
parents:
764
diff
changeset
|
959 } else if (region & REGION_J) { |
dc54387ee1cd
Allow regions to be set in ROM DB. Prefer default region if it is one of the valid regions for the ROM.
Michael Pavone <pavone@retrodev.com>
parents:
764
diff
changeset
|
960 version_reg = NO_DISK | JAP; |
dc54387ee1cd
Allow regions to be set in ROM DB. Prefer default region if it is one of the valid regions for the ROM.
Michael Pavone <pavone@retrodev.com>
parents:
764
diff
changeset
|
961 } else { |
dc54387ee1cd
Allow regions to be set in ROM DB. Prefer default region if it is one of the valid regions for the ROM.
Michael Pavone <pavone@retrodev.com>
parents:
764
diff
changeset
|
962 version_reg = NO_DISK | USA; |
dc54387ee1cd
Allow regions to be set in ROM DB. Prefer default region if it is one of the valid regions for the ROM.
Michael Pavone <pavone@retrodev.com>
parents:
764
diff
changeset
|
963 } |
341
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
964 } |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
965 |
88
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
966 int main(int argc, char ** argv) |
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
967 { |
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
|
968 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
|
969 config = load_config(); |
184
ebcbdd1c4cc8
Fix a bunch of bugs in the CPU core, add a 68K debugger
Mike Pavone <pavone@retrodev.com>
parents:
166
diff
changeset
|
970 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
|
971 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
|
972 int debug = 0; |
407
c3abc4ada43d
Add support for logging YM2612 channels to WAVE files
Mike Pavone <pavone@retrodev.com>
parents:
405
diff
changeset
|
973 int ym_log = 0; |
463
a1d298119153
Added -h help text option
Mike Pavone <pavone@retrodev.com>
parents:
458
diff
changeset
|
974 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
|
975 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
|
976 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
|
977 FILE *address_log = NULL; |
425
8b3ae850d1c4
Forgot to null initialize the statfile pointer
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
978 char * statefile = NULL; |
766
1b2f8280ba81
WIP changes to support reading cart memory map from ROM DB
Michael Pavone <pavone@retrodev.com>
parents:
765
diff
changeset
|
979 int rom_size; |
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
|
980 uint8_t * debuggerfun = NULL; |
860
213c3b5160d0
Default to fullscreen on Android since windowed mode does not make sense there
Michael Pavone <pavone@retrodev.com>
parents:
846
diff
changeset
|
981 uint8_t fullscreen = FULLSCREEN_DEFAULT, use_gl = 1; |
885
e3f5ec336432
Allow menu ROM to be debugged
Michael Pavone <pavone@retrodev.com>
parents:
884
diff
changeset
|
982 uint8_t debug_target = 0; |
463
a1d298119153
Added -h help text option
Mike Pavone <pavone@retrodev.com>
parents:
458
diff
changeset
|
983 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
|
984 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
|
985 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
|
986 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
|
987 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
|
988 if (i >= argc) { |
792
724bbec47f86
Use a new fatal_error function instead of calling fprintf and exit for fatal errors. This new function more gracefully handles the case in which BlastEm was not started from a terminal or disconnected from ther terminal (Windows).
Michael Pavone <pavone@retrodev.com>
parents:
787
diff
changeset
|
989 fatal_error("-b must be followed by a frame count\n"); |
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
|
990 } |
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
|
991 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
|
992 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
|
993 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
|
994 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
|
995 debuggerfun = (uint8_t *)debugger; |
885
e3f5ec336432
Allow menu ROM to be debugged
Michael Pavone <pavone@retrodev.com>
parents:
884
diff
changeset
|
996 //allow debugging the menu |
e3f5ec336432
Allow menu ROM to be debugged
Michael Pavone <pavone@retrodev.com>
parents:
884
diff
changeset
|
997 if (argv[i][2] == 'm') { |
e3f5ec336432
Allow menu ROM to be debugged
Michael Pavone <pavone@retrodev.com>
parents:
884
diff
changeset
|
998 debug_target = 1; |
e3f5ec336432
Allow menu ROM to be debugged
Michael Pavone <pavone@retrodev.com>
parents:
884
diff
changeset
|
999 } |
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
|
1000 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
|
1001 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
|
1002 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
|
1003 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
|
1004 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
|
1005 case 'f': |
860
213c3b5160d0
Default to fullscreen on Android since windowed mode does not make sense there
Michael Pavone <pavone@retrodev.com>
parents:
846
diff
changeset
|
1006 fullscreen = !fullscreen; |
338
5c34a9c39394
Re-enable frame limit, but add a command line flag to disable it
Mike Pavone <pavone@retrodev.com>
parents:
336
diff
changeset
|
1007 break; |
488
32f053ad9b02
Basic OpenGL rendering is working
Mike Pavone <pavone@retrodev.com>
parents:
487
diff
changeset
|
1008 case 'g': |
501
e1355aa80f4d
Use OpenGL by default. Add OpenGL switch to help text
Mike Pavone <pavone@retrodev.com>
parents:
496
diff
changeset
|
1009 use_gl = 0; |
488
32f053ad9b02
Basic OpenGL rendering is working
Mike Pavone <pavone@retrodev.com>
parents:
487
diff
changeset
|
1010 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
|
1011 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
|
1012 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
|
1013 break; |
464 | 1014 case 'v': |
792
724bbec47f86
Use a new fatal_error function instead of calling fprintf and exit for fatal errors. This new function more gracefully handles the case in which BlastEm was not started from a terminal or disconnected from ther terminal (Windows).
Michael Pavone <pavone@retrodev.com>
parents:
787
diff
changeset
|
1015 info_message("blastem %s\n", BLASTEM_VERSION); |
464 | 1016 return 0; |
1017 break; | |
265
c6d12878ea93
Add -n flag for disabling the Z80 core
Mike Pavone <pavone@retrodev.com>
parents:
264
diff
changeset
|
1018 case 'n': |
c6d12878ea93
Add -n flag for disabling the Z80 core
Mike Pavone <pavone@retrodev.com>
parents:
264
diff
changeset
|
1019 z80_enabled = 0; |
c6d12878ea93
Add -n flag for disabling the Z80 core
Mike Pavone <pavone@retrodev.com>
parents:
264
diff
changeset
|
1020 break; |
341
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1021 case 'r': |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1022 i++; |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1023 if (i >= argc) { |
792
724bbec47f86
Use a new fatal_error function instead of calling fprintf and exit for fatal errors. This new function more gracefully handles the case in which BlastEm was not started from a terminal or disconnected from ther terminal (Windows).
Michael Pavone <pavone@retrodev.com>
parents:
787
diff
changeset
|
1024 fatal_error("-r must be followed by region (J, U or E)\n"); |
341
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1025 } |
765
dc54387ee1cd
Allow regions to be set in ROM DB. Prefer default region if it is one of the valid regions for the ROM.
Michael Pavone <pavone@retrodev.com>
parents:
764
diff
changeset
|
1026 force_version = translate_region_char(toupper(argv[i][0])); |
dc54387ee1cd
Allow regions to be set in ROM DB. Prefer default region if it is one of the valid regions for the ROM.
Michael Pavone <pavone@retrodev.com>
parents:
764
diff
changeset
|
1027 if (!force_version) { |
792
724bbec47f86
Use a new fatal_error function instead of calling fprintf and exit for fatal errors. This new function more gracefully handles the case in which BlastEm was not started from a terminal or disconnected from ther terminal (Windows).
Michael Pavone <pavone@retrodev.com>
parents:
787
diff
changeset
|
1028 fatal_error("'%c' is not a valid region character for the -r option\n", argv[i][0]); |
341
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1029 } |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1030 break; |
424
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1031 case 's': |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1032 i++; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1033 if (i >= argc) { |
792
724bbec47f86
Use a new fatal_error function instead of calling fprintf and exit for fatal errors. This new function more gracefully handles the case in which BlastEm was not started from a terminal or disconnected from ther terminal (Windows).
Michael Pavone <pavone@retrodev.com>
parents:
787
diff
changeset
|
1034 fatal_error("-s must be followed by a savestate filename\n"); |
424
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1035 } |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1036 statefile = argv[i]; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1037 break; |
832
0433fdd9ba66
Added a command line option to force BlastEm to not open a new terminal even if it detects that stdin/out are not terminals
Michael Pavone <pavone@retrodev.com>
parents:
819
diff
changeset
|
1038 case 't': |
0433fdd9ba66
Added a command line option to force BlastEm to not open a new terminal even if it detects that stdin/out are not terminals
Michael Pavone <pavone@retrodev.com>
parents:
819
diff
changeset
|
1039 force_no_terminal(); |
0433fdd9ba66
Added a command line option to force BlastEm to not open a new terminal even if it detects that stdin/out are not terminals
Michael Pavone <pavone@retrodev.com>
parents:
819
diff
changeset
|
1040 break; |
407
c3abc4ada43d
Add support for logging YM2612 channels to WAVE files
Mike Pavone <pavone@retrodev.com>
parents:
405
diff
changeset
|
1041 case 'y': |
c3abc4ada43d
Add support for logging YM2612 channels to WAVE files
Mike Pavone <pavone@retrodev.com>
parents:
405
diff
changeset
|
1042 ym_log = 1; |
c3abc4ada43d
Add support for logging YM2612 channels to WAVE files
Mike Pavone <pavone@retrodev.com>
parents:
405
diff
changeset
|
1043 break; |
463
a1d298119153
Added -h help text option
Mike Pavone <pavone@retrodev.com>
parents:
458
diff
changeset
|
1044 case 'h': |
792
724bbec47f86
Use a new fatal_error function instead of calling fprintf and exit for fatal errors. This new function more gracefully handles the case in which BlastEm was not started from a terminal or disconnected from ther terminal (Windows).
Michael Pavone <pavone@retrodev.com>
parents:
787
diff
changeset
|
1045 info_message( |
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
|
1046 "Usage: blastem [OPTIONS] ROMFILE [WIDTH] [HEIGHT]\n" |
463
a1d298119153
Added -h help text option
Mike Pavone <pavone@retrodev.com>
parents:
458
diff
changeset
|
1047 "Options:\n" |
a1d298119153
Added -h help text option
Mike Pavone <pavone@retrodev.com>
parents:
458
diff
changeset
|
1048 " -h Print this help text\n" |
a1d298119153
Added -h help text option
Mike Pavone <pavone@retrodev.com>
parents:
458
diff
changeset
|
1049 " -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
|
1050 " -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
|
1051 " -g Disable OpenGL rendering\n" |
463
a1d298119153
Added -h help text option
Mike Pavone <pavone@retrodev.com>
parents:
458
diff
changeset
|
1052 " -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
|
1053 " -d Enter debugger on startup\n" |
a1d298119153
Added -h help text option
Mike Pavone <pavone@retrodev.com>
parents:
458
diff
changeset
|
1054 " -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
|
1055 " -v Display version number and exit\n" |
463
a1d298119153
Added -h help text option
Mike Pavone <pavone@retrodev.com>
parents:
458
diff
changeset
|
1056 " -l Log 68K code addresses (useful for assemblers)\n" |
a1d298119153
Added -h help text option
Mike Pavone <pavone@retrodev.com>
parents:
458
diff
changeset
|
1057 " -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
|
1058 ); |
a1d298119153
Added -h help text option
Mike Pavone <pavone@retrodev.com>
parents:
458
diff
changeset
|
1059 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
|
1060 default: |
792
724bbec47f86
Use a new fatal_error function instead of calling fprintf and exit for fatal errors. This new function more gracefully handles the case in which BlastEm was not started from a terminal or disconnected from ther terminal (Windows).
Michael Pavone <pavone@retrodev.com>
parents:
787
diff
changeset
|
1061 fatal_error("Unrecognized switch %s\n", argv[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
|
1062 } |
463
a1d298119153
Added -h help text option
Mike Pavone <pavone@retrodev.com>
parents:
458
diff
changeset
|
1063 } else if (!loaded) { |
767
ea525f600b1d
SRAM detection from ROM header is no working correctly again
Michael Pavone <pavone@retrodev.com>
parents:
766
diff
changeset
|
1064 if (!(rom_size = load_rom(argv[i]))) { |
792
724bbec47f86
Use a new fatal_error function instead of calling fprintf and exit for fatal errors. This new function more gracefully handles the case in which BlastEm was not started from a terminal or disconnected from ther terminal (Windows).
Michael Pavone <pavone@retrodev.com>
parents:
787
diff
changeset
|
1065 fatal_error("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
|
1066 } |
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
|
1067 romfname = argv[i]; |
463
a1d298119153
Added -h help text option
Mike Pavone <pavone@retrodev.com>
parents:
458
diff
changeset
|
1068 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
|
1069 } 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
|
1070 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
|
1071 } 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
|
1072 height = atoi(argv[i]); |
88
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1073 } |
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1074 } |
874
b6842dfb8edf
ROM is now run after being selected in menu. Initial path for menu is read from config file.
Michael Pavone <pavone@retrodev.com>
parents:
872
diff
changeset
|
1075 uint8_t menu = !loaded; |
463
a1d298119153
Added -h help text option
Mike Pavone <pavone@retrodev.com>
parents:
458
diff
changeset
|
1076 if (!loaded) { |
874
b6842dfb8edf
ROM is now run after being selected in menu. Initial path for menu is read from config file.
Michael Pavone <pavone@retrodev.com>
parents:
872
diff
changeset
|
1077 //load menu |
b6842dfb8edf
ROM is now run after being selected in menu. Initial path for menu is read from config file.
Michael Pavone <pavone@retrodev.com>
parents:
872
diff
changeset
|
1078 romfname = tern_find_path(config, "ui\rom\0").ptrval; |
b6842dfb8edf
ROM is now run after being selected in menu. Initial path for menu is read from config file.
Michael Pavone <pavone@retrodev.com>
parents:
872
diff
changeset
|
1079 if (!romfname) { |
b6842dfb8edf
ROM is now run after being selected in menu. Initial path for menu is read from config file.
Michael Pavone <pavone@retrodev.com>
parents:
872
diff
changeset
|
1080 romfname = "menu.bin"; |
b6842dfb8edf
ROM is now run after being selected in menu. Initial path for menu is read from config file.
Michael Pavone <pavone@retrodev.com>
parents:
872
diff
changeset
|
1081 } |
875
54ffba3768d6
Make menu stuff work on Android (theoretically)
Michael Pavone <pavone@retrodev.com>
parents:
874
diff
changeset
|
1082 if (romfname[0] == '/') { |
54ffba3768d6
Make menu stuff work on Android (theoretically)
Michael Pavone <pavone@retrodev.com>
parents:
874
diff
changeset
|
1083 if (!(rom_size = load_rom(romfname))) { |
54ffba3768d6
Make menu stuff work on Android (theoretically)
Michael Pavone <pavone@retrodev.com>
parents:
874
diff
changeset
|
1084 fatal_error("Failed to open UI ROM %s for reading", romfname); |
54ffba3768d6
Make menu stuff work on Android (theoretically)
Michael Pavone <pavone@retrodev.com>
parents:
874
diff
changeset
|
1085 } |
54ffba3768d6
Make menu stuff work on Android (theoretically)
Michael Pavone <pavone@retrodev.com>
parents:
874
diff
changeset
|
1086 } else { |
54ffba3768d6
Make menu stuff work on Android (theoretically)
Michael Pavone <pavone@retrodev.com>
parents:
874
diff
changeset
|
1087 long fsize; |
54ffba3768d6
Make menu stuff work on Android (theoretically)
Michael Pavone <pavone@retrodev.com>
parents:
874
diff
changeset
|
1088 cart = (uint16_t *)read_bundled_file(romfname, &fsize); |
54ffba3768d6
Make menu stuff work on Android (theoretically)
Michael Pavone <pavone@retrodev.com>
parents:
874
diff
changeset
|
1089 if (!cart) { |
54ffba3768d6
Make menu stuff work on Android (theoretically)
Michael Pavone <pavone@retrodev.com>
parents:
874
diff
changeset
|
1090 fatal_error("Failed to open UI ROM %s for reading", romfname); |
54ffba3768d6
Make menu stuff work on Android (theoretically)
Michael Pavone <pavone@retrodev.com>
parents:
874
diff
changeset
|
1091 } |
54ffba3768d6
Make menu stuff work on Android (theoretically)
Michael Pavone <pavone@retrodev.com>
parents:
874
diff
changeset
|
1092 rom_size = nearest_pow2(fsize); |
54ffba3768d6
Make menu stuff work on Android (theoretically)
Michael Pavone <pavone@retrodev.com>
parents:
874
diff
changeset
|
1093 if (rom_size > fsize) { |
54ffba3768d6
Make menu stuff work on Android (theoretically)
Michael Pavone <pavone@retrodev.com>
parents:
874
diff
changeset
|
1094 cart = realloc(cart, rom_size); |
54ffba3768d6
Make menu stuff work on Android (theoretically)
Michael Pavone <pavone@retrodev.com>
parents:
874
diff
changeset
|
1095 } |
54ffba3768d6
Make menu stuff work on Android (theoretically)
Michael Pavone <pavone@retrodev.com>
parents:
874
diff
changeset
|
1096 } |
874
b6842dfb8edf
ROM is now run after being selected in menu. Initial path for menu is read from config file.
Michael Pavone <pavone@retrodev.com>
parents:
872
diff
changeset
|
1097 //TODO: load relative to executable or from assets depending on platform |
872
7022ba865cfd
Initial work for allowing loading a ROM from menu
Michael Pavone <pavone@retrodev.com>
parents:
861
diff
changeset
|
1098 |
861
4e394d9a7548
Added temporary hack for loading a fixed ROM path so that Android build is "useable" before UI is in place
Michael Pavone <pavone@retrodev.com>
parents:
860
diff
changeset
|
1099 loaded = 1; |
463
a1d298119153
Added -h help text option
Mike Pavone <pavone@retrodev.com>
parents:
458
diff
changeset
|
1100 } |
883
9f149f0e98b7
It is now possible to switch back and forth between the menu ROM and the game
Michael Pavone <pavone@retrodev.com>
parents:
875
diff
changeset
|
1101 ram = malloc(RAM_WORDS * sizeof(uint16_t)); |
9f149f0e98b7
It is now possible to switch back and forth between the menu ROM and the game
Michael Pavone <pavone@retrodev.com>
parents:
875
diff
changeset
|
1102 memmap_chunk base_map[] = { |
9f149f0e98b7
It is now possible to switch back and forth between the menu ROM and the game
Michael Pavone <pavone@retrodev.com>
parents:
875
diff
changeset
|
1103 {0xE00000, 0x1000000, 0xFFFF, 0, MMAP_READ | MMAP_WRITE | MMAP_CODE, ram, |
9f149f0e98b7
It is now possible to switch back and forth between the menu ROM and the game
Michael Pavone <pavone@retrodev.com>
parents:
875
diff
changeset
|
1104 NULL, NULL, NULL, NULL}, |
9f149f0e98b7
It is now possible to switch back and forth between the menu ROM and the game
Michael Pavone <pavone@retrodev.com>
parents:
875
diff
changeset
|
1105 {0xC00000, 0xE00000, 0x1FFFFF, 0, 0, NULL, |
9f149f0e98b7
It is now possible to switch back and forth between the menu ROM and the game
Michael Pavone <pavone@retrodev.com>
parents:
875
diff
changeset
|
1106 (read_16_fun)vdp_port_read, (write_16_fun)vdp_port_write, |
9f149f0e98b7
It is now possible to switch back and forth between the menu ROM and the game
Michael Pavone <pavone@retrodev.com>
parents:
875
diff
changeset
|
1107 (read_8_fun)vdp_port_read_b, (write_8_fun)vdp_port_write_b}, |
9f149f0e98b7
It is now possible to switch back and forth between the menu ROM and the game
Michael Pavone <pavone@retrodev.com>
parents:
875
diff
changeset
|
1108 {0xA00000, 0xA12000, 0x1FFFF, 0, 0, NULL, |
9f149f0e98b7
It is now possible to switch back and forth between the menu ROM and the game
Michael Pavone <pavone@retrodev.com>
parents:
875
diff
changeset
|
1109 (read_16_fun)io_read_w, (write_16_fun)io_write_w, |
9f149f0e98b7
It is now possible to switch back and forth between the menu ROM and the game
Michael Pavone <pavone@retrodev.com>
parents:
875
diff
changeset
|
1110 (read_8_fun)io_read, (write_8_fun)io_write} |
9f149f0e98b7
It is now possible to switch back and forth between the menu ROM and the game
Michael Pavone <pavone@retrodev.com>
parents:
875
diff
changeset
|
1111 }; |
764
bb60259e8edf
Initial work on ROM database
Michael Pavone <pavone@retrodev.com>
parents:
753
diff
changeset
|
1112 tern_node *rom_db = load_rom_db(); |
767
ea525f600b1d
SRAM detection from ROM header is no working correctly again
Michael Pavone <pavone@retrodev.com>
parents:
766
diff
changeset
|
1113 rom_info info = configure_rom(rom_db, cart, rom_size, base_map, sizeof(base_map)/sizeof(base_map[0])); |
776
cbf97d335444
Full support for Sega mapper when it comes to data. Code in remapped sections may not work reliably. SSF2 now works.
Michael Pavone <pavone@retrodev.com>
parents:
774
diff
changeset
|
1114 byteswap_rom(rom_size); |
765
dc54387ee1cd
Allow regions to be set in ROM DB. Prefer default region if it is one of the valid regions for the ROM.
Michael Pavone <pavone@retrodev.com>
parents:
764
diff
changeset
|
1115 set_region(&info, force_version); |
764
bb60259e8edf
Initial work on ROM database
Michael Pavone <pavone@retrodev.com>
parents:
753
diff
changeset
|
1116 update_title(info.name); |
433
ed4d0017c041
Read default render width from config file
Mike Pavone <pavone@retrodev.com>
parents:
430
diff
changeset
|
1117 int def_width = 0; |
766
1b2f8280ba81
WIP changes to support reading cart memory map from ROM DB
Michael Pavone <pavone@retrodev.com>
parents:
765
diff
changeset
|
1118 char *config_width = tern_find_path(config, "video\0width\0").ptrval; |
433
ed4d0017c041
Read default render width from config file
Mike Pavone <pavone@retrodev.com>
parents:
430
diff
changeset
|
1119 if (config_width) { |
ed4d0017c041
Read default render width from config file
Mike Pavone <pavone@retrodev.com>
parents:
430
diff
changeset
|
1120 def_width = atoi(config_width); |
ed4d0017c041
Read default render width from config file
Mike Pavone <pavone@retrodev.com>
parents:
430
diff
changeset
|
1121 } |
ed4d0017c041
Read default render width from config file
Mike Pavone <pavone@retrodev.com>
parents:
430
diff
changeset
|
1122 if (!def_width) { |
ed4d0017c041
Read default render width from config file
Mike Pavone <pavone@retrodev.com>
parents:
430
diff
changeset
|
1123 def_width = 640; |
ed4d0017c041
Read default render width from config file
Mike Pavone <pavone@retrodev.com>
parents:
430
diff
changeset
|
1124 } |
ed4d0017c041
Read default render width from config file
Mike Pavone <pavone@retrodev.com>
parents:
430
diff
changeset
|
1125 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
|
1126 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
|
1127 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
|
1128 if (version_reg & 0x40) { |
354
15dd6418fe67
Initial PSG support. Mostly works, noise channel is borked though.
Mike Pavone <pavone@retrodev.com>
parents:
351
diff
changeset
|
1129 fps = 50; |
15dd6418fe67
Initial PSG support. Mostly works, noise channel is borked though.
Mike Pavone <pavone@retrodev.com>
parents:
351
diff
changeset
|
1130 } |
15dd6418fe67
Initial PSG support. Mostly works, noise channel is borked though.
Mike Pavone <pavone@retrodev.com>
parents:
351
diff
changeset
|
1131 if (!headless) { |
719
019d27995e32
Upgrade to SDL 2.0 and drop support for the non-OpenGL render path
Michael Pavone <pavone@retrodev.com>
parents:
718
diff
changeset
|
1132 render_init(width, height, title, fps, fullscreen); |
342
13f994c88c34
Get frame time correct and frame rate sort of correct for EUR region
Mike Pavone <pavone@retrodev.com>
parents:
341
diff
changeset
|
1133 } |
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
|
1134 int fname_size = strlen(romfname); |
767
ea525f600b1d
SRAM detection from ROM header is no working correctly again
Michael Pavone <pavone@retrodev.com>
parents:
766
diff
changeset
|
1135 char * ext = info.save_type == SAVE_I2C ? "eeprom" : "sram"; |
ea525f600b1d
SRAM detection from ROM header is no working correctly again
Michael Pavone <pavone@retrodev.com>
parents:
766
diff
changeset
|
1136 save_filename = malloc(fname_size+strlen(ext) + 2); |
ea525f600b1d
SRAM detection from ROM header is no working correctly again
Michael Pavone <pavone@retrodev.com>
parents:
766
diff
changeset
|
1137 memcpy(save_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
|
1138 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
|
1139 for (i = fname_size-1; fname_size >= 0; --i) { |
767
ea525f600b1d
SRAM detection from ROM header is no working correctly again
Michael Pavone <pavone@retrodev.com>
parents:
766
diff
changeset
|
1140 if (save_filename[i] == '.') { |
ea525f600b1d
SRAM detection from ROM header is no working correctly again
Michael Pavone <pavone@retrodev.com>
parents:
766
diff
changeset
|
1141 strcpy(save_filename + i + 1, ext); |
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
|
1142 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
|
1143 } |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
1144 } |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
1145 if (i < 0) { |
767
ea525f600b1d
SRAM detection from ROM header is no working correctly again
Michael Pavone <pavone@retrodev.com>
parents:
766
diff
changeset
|
1146 save_filename[fname_size] = '.'; |
ea525f600b1d
SRAM detection from ROM header is no working correctly again
Michael Pavone <pavone@retrodev.com>
parents:
766
diff
changeset
|
1147 strcpy(save_filename + fname_size + 1, ext); |
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
|
1148 } |
874
b6842dfb8edf
ROM is now run after being selected in menu. Initial path for menu is read from config file.
Michael Pavone <pavone@retrodev.com>
parents:
872
diff
changeset
|
1149 |
b6842dfb8edf
ROM is now run after being selected in menu. Initial path for menu is read from config file.
Michael Pavone <pavone@retrodev.com>
parents:
872
diff
changeset
|
1150 genesis = alloc_init_genesis(&info, fps, (ym_log && !menu) ? YM_OPT_WAVE_LOG : 0); |
b6842dfb8edf
ROM is now run after being selected in menu. Initial path for menu is read from config file.
Michael Pavone <pavone@retrodev.com>
parents:
872
diff
changeset
|
1151 if (menu) { |
b6842dfb8edf
ROM is now run after being selected in menu. Initial path for menu is read from config file.
Michael Pavone <pavone@retrodev.com>
parents:
872
diff
changeset
|
1152 menu_context = genesis; |
b6842dfb8edf
ROM is now run after being selected in menu. Initial path for menu is read from config file.
Michael Pavone <pavone@retrodev.com>
parents:
872
diff
changeset
|
1153 } else { |
b6842dfb8edf
ROM is now run after being selected in menu. Initial path for menu is read from config file.
Michael Pavone <pavone@retrodev.com>
parents:
872
diff
changeset
|
1154 genesis->m68k->options->address_log = address_log; |
b6842dfb8edf
ROM is now run after being selected in menu. Initial path for menu is read from config file.
Michael Pavone <pavone@retrodev.com>
parents:
872
diff
changeset
|
1155 game_context = genesis; |
b6842dfb8edf
ROM is now run after being selected in menu. Initial path for menu is read from config file.
Michael Pavone <pavone@retrodev.com>
parents:
872
diff
changeset
|
1156 } |
488
32f053ad9b02
Basic OpenGL rendering is working
Mike Pavone <pavone@retrodev.com>
parents:
487
diff
changeset
|
1157 |
884
252dfd29831d
Selecting a second game from the menu now works
Michael Pavone <pavone@retrodev.com>
parents:
883
diff
changeset
|
1158 set_keybindings(genesis->ports); |
885
e3f5ec336432
Allow menu ROM to be debugged
Michael Pavone <pavone@retrodev.com>
parents:
884
diff
changeset
|
1159 start_genesis(genesis, menu ? NULL : statefile, menu == debug_target ? debuggerfun : NULL); |
883
9f149f0e98b7
It is now possible to switch back and forth between the menu ROM and the game
Michael Pavone <pavone@retrodev.com>
parents:
875
diff
changeset
|
1160 for(;;) |
9f149f0e98b7
It is now possible to switch back and forth between the menu ROM and the game
Michael Pavone <pavone@retrodev.com>
parents:
875
diff
changeset
|
1161 { |
9f149f0e98b7
It is now possible to switch back and forth between the menu ROM and the game
Michael Pavone <pavone@retrodev.com>
parents:
875
diff
changeset
|
1162 if (menu && menu_context->next_rom) { |
884
252dfd29831d
Selecting a second game from the menu now works
Michael Pavone <pavone@retrodev.com>
parents:
883
diff
changeset
|
1163 if (game_context) { |
252dfd29831d
Selecting a second game from the menu now works
Michael Pavone <pavone@retrodev.com>
parents:
883
diff
changeset
|
1164 if (game_context->save_type != SAVE_NONE) { |
252dfd29831d
Selecting a second game from the menu now works
Michael Pavone <pavone@retrodev.com>
parents:
883
diff
changeset
|
1165 persist_save(); |
252dfd29831d
Selecting a second game from the menu now works
Michael Pavone <pavone@retrodev.com>
parents:
883
diff
changeset
|
1166 } |
252dfd29831d
Selecting a second game from the menu now works
Michael Pavone <pavone@retrodev.com>
parents:
883
diff
changeset
|
1167 free(game_context->cart); |
252dfd29831d
Selecting a second game from the menu now works
Michael Pavone <pavone@retrodev.com>
parents:
883
diff
changeset
|
1168 free(save_filename); |
252dfd29831d
Selecting a second game from the menu now works
Michael Pavone <pavone@retrodev.com>
parents:
883
diff
changeset
|
1169 base_map[0].buffer = ram = game_context->work_ram; |
252dfd29831d
Selecting a second game from the menu now works
Michael Pavone <pavone@retrodev.com>
parents:
883
diff
changeset
|
1170 } else { |
252dfd29831d
Selecting a second game from the menu now works
Michael Pavone <pavone@retrodev.com>
parents:
883
diff
changeset
|
1171 base_map[0].buffer = ram = malloc(RAM_WORDS * sizeof(uint16_t)); |
252dfd29831d
Selecting a second game from the menu now works
Michael Pavone <pavone@retrodev.com>
parents:
883
diff
changeset
|
1172 } |
252dfd29831d
Selecting a second game from the menu now works
Michael Pavone <pavone@retrodev.com>
parents:
883
diff
changeset
|
1173 memset(ram, 0, RAM_WORDS * sizeof(uint16_t)); |
883
9f149f0e98b7
It is now possible to switch back and forth between the menu ROM and the game
Michael Pavone <pavone@retrodev.com>
parents:
875
diff
changeset
|
1174 if (!(rom_size = load_rom(menu_context->next_rom))) { |
9f149f0e98b7
It is now possible to switch back and forth between the menu ROM and the game
Michael Pavone <pavone@retrodev.com>
parents:
875
diff
changeset
|
1175 fatal_error("Failed to open %s for reading\n", menu_context->next_rom); |
9f149f0e98b7
It is now possible to switch back and forth between the menu ROM and the game
Michael Pavone <pavone@retrodev.com>
parents:
875
diff
changeset
|
1176 } |
9f149f0e98b7
It is now possible to switch back and forth between the menu ROM and the game
Michael Pavone <pavone@retrodev.com>
parents:
875
diff
changeset
|
1177 info = configure_rom(rom_db, cart, rom_size, base_map, sizeof(base_map)/sizeof(base_map[0])); |
9f149f0e98b7
It is now possible to switch back and forth between the menu ROM and the game
Michael Pavone <pavone@retrodev.com>
parents:
875
diff
changeset
|
1178 byteswap_rom(rom_size); |
9f149f0e98b7
It is now possible to switch back and forth between the menu ROM and the game
Michael Pavone <pavone@retrodev.com>
parents:
875
diff
changeset
|
1179 set_region(&info, force_version); |
9f149f0e98b7
It is now possible to switch back and forth between the menu ROM and the game
Michael Pavone <pavone@retrodev.com>
parents:
875
diff
changeset
|
1180 update_title(info.name); |
9f149f0e98b7
It is now possible to switch back and forth between the menu ROM and the game
Michael Pavone <pavone@retrodev.com>
parents:
875
diff
changeset
|
1181 fname_size = strlen(romfname); |
9f149f0e98b7
It is now possible to switch back and forth between the menu ROM and the game
Michael Pavone <pavone@retrodev.com>
parents:
875
diff
changeset
|
1182 ext = info.save_type == SAVE_I2C ? "eeprom" : "sram"; |
9f149f0e98b7
It is now possible to switch back and forth between the menu ROM and the game
Michael Pavone <pavone@retrodev.com>
parents:
875
diff
changeset
|
1183 save_filename = malloc(fname_size+strlen(ext) + 2); |
9f149f0e98b7
It is now possible to switch back and forth between the menu ROM and the game
Michael Pavone <pavone@retrodev.com>
parents:
875
diff
changeset
|
1184 memcpy(save_filename, romfname, fname_size); |
9f149f0e98b7
It is now possible to switch back and forth between the menu ROM and the game
Michael Pavone <pavone@retrodev.com>
parents:
875
diff
changeset
|
1185 for (i = fname_size-1; fname_size >= 0; --i) { |
9f149f0e98b7
It is now possible to switch back and forth between the menu ROM and the game
Michael Pavone <pavone@retrodev.com>
parents:
875
diff
changeset
|
1186 if (save_filename[i] == '.') { |
9f149f0e98b7
It is now possible to switch back and forth between the menu ROM and the game
Michael Pavone <pavone@retrodev.com>
parents:
875
diff
changeset
|
1187 strcpy(save_filename + i + 1, ext); |
9f149f0e98b7
It is now possible to switch back and forth between the menu ROM and the game
Michael Pavone <pavone@retrodev.com>
parents:
875
diff
changeset
|
1188 break; |
9f149f0e98b7
It is now possible to switch back and forth between the menu ROM and the game
Michael Pavone <pavone@retrodev.com>
parents:
875
diff
changeset
|
1189 } |
9f149f0e98b7
It is now possible to switch back and forth between the menu ROM and the game
Michael Pavone <pavone@retrodev.com>
parents:
875
diff
changeset
|
1190 } |
9f149f0e98b7
It is now possible to switch back and forth between the menu ROM and the game
Michael Pavone <pavone@retrodev.com>
parents:
875
diff
changeset
|
1191 if (i < 0) { |
9f149f0e98b7
It is now possible to switch back and forth between the menu ROM and the game
Michael Pavone <pavone@retrodev.com>
parents:
875
diff
changeset
|
1192 save_filename[fname_size] = '.'; |
9f149f0e98b7
It is now possible to switch back and forth between the menu ROM and the game
Michael Pavone <pavone@retrodev.com>
parents:
875
diff
changeset
|
1193 strcpy(save_filename + fname_size + 1, ext); |
9f149f0e98b7
It is now possible to switch back and forth between the menu ROM and the game
Michael Pavone <pavone@retrodev.com>
parents:
875
diff
changeset
|
1194 } |
9f149f0e98b7
It is now possible to switch back and forth between the menu ROM and the game
Michael Pavone <pavone@retrodev.com>
parents:
875
diff
changeset
|
1195 if (!game_context) { |
9f149f0e98b7
It is now possible to switch back and forth between the menu ROM and the game
Michael Pavone <pavone@retrodev.com>
parents:
875
diff
changeset
|
1196 //start a new arena and save old one in suspended genesis context |
9f149f0e98b7
It is now possible to switch back and forth between the menu ROM and the game
Michael Pavone <pavone@retrodev.com>
parents:
875
diff
changeset
|
1197 genesis->arena = start_new_arena(); |
9f149f0e98b7
It is now possible to switch back and forth between the menu ROM and the game
Michael Pavone <pavone@retrodev.com>
parents:
875
diff
changeset
|
1198 } else { |
884
252dfd29831d
Selecting a second game from the menu now works
Michael Pavone <pavone@retrodev.com>
parents:
883
diff
changeset
|
1199 genesis->arena = set_current_arena(game_context->arena); |
252dfd29831d
Selecting a second game from the menu now works
Michael Pavone <pavone@retrodev.com>
parents:
883
diff
changeset
|
1200 mark_all_free(); |
252dfd29831d
Selecting a second game from the menu now works
Michael Pavone <pavone@retrodev.com>
parents:
883
diff
changeset
|
1201 free_genesis(game_context); |
883
9f149f0e98b7
It is now possible to switch back and forth between the menu ROM and the game
Michael Pavone <pavone@retrodev.com>
parents:
875
diff
changeset
|
1202 } |
884
252dfd29831d
Selecting a second game from the menu now works
Michael Pavone <pavone@retrodev.com>
parents:
883
diff
changeset
|
1203 //allocate new genesis context |
252dfd29831d
Selecting a second game from the menu now works
Michael Pavone <pavone@retrodev.com>
parents:
883
diff
changeset
|
1204 game_context = alloc_init_genesis(&info, fps, ym_log ? YM_OPT_WAVE_LOG : 0); |
883
9f149f0e98b7
It is now possible to switch back and forth between the menu ROM and the game
Michael Pavone <pavone@retrodev.com>
parents:
875
diff
changeset
|
1205 free(menu_context->next_rom); |
9f149f0e98b7
It is now possible to switch back and forth between the menu ROM and the game
Michael Pavone <pavone@retrodev.com>
parents:
875
diff
changeset
|
1206 menu_context->next_rom = NULL; |
9f149f0e98b7
It is now possible to switch back and forth between the menu ROM and the game
Michael Pavone <pavone@retrodev.com>
parents:
875
diff
changeset
|
1207 menu = 0; |
9f149f0e98b7
It is now possible to switch back and forth between the menu ROM and the game
Michael Pavone <pavone@retrodev.com>
parents:
875
diff
changeset
|
1208 genesis = game_context; |
9f149f0e98b7
It is now possible to switch back and forth between the menu ROM and the game
Michael Pavone <pavone@retrodev.com>
parents:
875
diff
changeset
|
1209 genesis->m68k->options->address_log = address_log; |
884
252dfd29831d
Selecting a second game from the menu now works
Michael Pavone <pavone@retrodev.com>
parents:
883
diff
changeset
|
1210 map_all_bindings(genesis->ports); |
885
e3f5ec336432
Allow menu ROM to be debugged
Michael Pavone <pavone@retrodev.com>
parents:
884
diff
changeset
|
1211 start_genesis(genesis, statefile, menu == debug_target ? debuggerfun : NULL); |
874
b6842dfb8edf
ROM is now run after being selected in menu. Initial path for menu is read from config file.
Michael Pavone <pavone@retrodev.com>
parents:
872
diff
changeset
|
1212 } |
883
9f149f0e98b7
It is now possible to switch back and forth between the menu ROM and the game
Michael Pavone <pavone@retrodev.com>
parents:
875
diff
changeset
|
1213 else if (menu && game_context) { |
9f149f0e98b7
It is now possible to switch back and forth between the menu ROM and the game
Michael Pavone <pavone@retrodev.com>
parents:
875
diff
changeset
|
1214 genesis->arena = set_current_arena(game_context->arena); |
9f149f0e98b7
It is now possible to switch back and forth between the menu ROM and the game
Michael Pavone <pavone@retrodev.com>
parents:
875
diff
changeset
|
1215 genesis = game_context; |
9f149f0e98b7
It is now possible to switch back and forth between the menu ROM and the game
Michael Pavone <pavone@retrodev.com>
parents:
875
diff
changeset
|
1216 cart = genesis->cart; |
9f149f0e98b7
It is now possible to switch back and forth between the menu ROM and the game
Michael Pavone <pavone@retrodev.com>
parents:
875
diff
changeset
|
1217 ram = genesis->work_ram; |
9f149f0e98b7
It is now possible to switch back and forth between the menu ROM and the game
Michael Pavone <pavone@retrodev.com>
parents:
875
diff
changeset
|
1218 menu = 0; |
884
252dfd29831d
Selecting a second game from the menu now works
Michael Pavone <pavone@retrodev.com>
parents:
883
diff
changeset
|
1219 map_all_bindings(genesis->ports); |
883
9f149f0e98b7
It is now possible to switch back and forth between the menu ROM and the game
Michael Pavone <pavone@retrodev.com>
parents:
875
diff
changeset
|
1220 resume_68k(genesis->m68k); |
9f149f0e98b7
It is now possible to switch back and forth between the menu ROM and the game
Michael Pavone <pavone@retrodev.com>
parents:
875
diff
changeset
|
1221 } else if (!menu && menu_context) { |
9f149f0e98b7
It is now possible to switch back and forth between the menu ROM and the game
Michael Pavone <pavone@retrodev.com>
parents:
875
diff
changeset
|
1222 genesis->arena = set_current_arena(menu_context->arena); |
9f149f0e98b7
It is now possible to switch back and forth between the menu ROM and the game
Michael Pavone <pavone@retrodev.com>
parents:
875
diff
changeset
|
1223 genesis = menu_context; |
9f149f0e98b7
It is now possible to switch back and forth between the menu ROM and the game
Michael Pavone <pavone@retrodev.com>
parents:
875
diff
changeset
|
1224 cart = genesis->cart; |
9f149f0e98b7
It is now possible to switch back and forth between the menu ROM and the game
Michael Pavone <pavone@retrodev.com>
parents:
875
diff
changeset
|
1225 ram = genesis->work_ram; |
9f149f0e98b7
It is now possible to switch back and forth between the menu ROM and the game
Michael Pavone <pavone@retrodev.com>
parents:
875
diff
changeset
|
1226 menu = 1; |
884
252dfd29831d
Selecting a second game from the menu now works
Michael Pavone <pavone@retrodev.com>
parents:
883
diff
changeset
|
1227 map_all_bindings(genesis->ports); |
883
9f149f0e98b7
It is now possible to switch back and forth between the menu ROM and the game
Michael Pavone <pavone@retrodev.com>
parents:
875
diff
changeset
|
1228 resume_68k(genesis->m68k); |
9f149f0e98b7
It is now possible to switch back and forth between the menu ROM and the game
Michael Pavone <pavone@retrodev.com>
parents:
875
diff
changeset
|
1229 } else { |
9f149f0e98b7
It is now possible to switch back and forth between the menu ROM and the game
Michael Pavone <pavone@retrodev.com>
parents:
875
diff
changeset
|
1230 break; |
874
b6842dfb8edf
ROM is now run after being selected in menu. Initial path for menu is read from config file.
Michael Pavone <pavone@retrodev.com>
parents:
872
diff
changeset
|
1231 } |
b6842dfb8edf
ROM is now run after being selected in menu. Initial path for menu is read from config file.
Michael Pavone <pavone@retrodev.com>
parents:
872
diff
changeset
|
1232 } |
b6842dfb8edf
ROM is now run after being selected in menu. Initial path for menu is read from config file.
Michael Pavone <pavone@retrodev.com>
parents:
872
diff
changeset
|
1233 |
88
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1234 return 0; |
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1235 } |