Mercurial > repos > blastem
annotate blastem.c @ 1002:8d032a368dd5
Made low pass filter frequency configurable
author | Michael Pavone <pavone@retrodev.com> |
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date | Sun, 01 May 2016 13:36:14 -0700 |
parents | 560da2e455c2 |
children | 51885857c019 |
rev | line source |
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467
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Added copyright notice to source files and added GPL license text in COPYING
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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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Added support for saving savestates. Added gst savestate format test harness
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19 #include "gst.h" |
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Extract function to determine executable directory from load_config so it can be used elsewhere
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20 #include "util.h" |
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21 #include "romdb.h" |
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Added a command line option to force BlastEm to not open a new terminal even if it detects that stdin/out are not terminals
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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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Change version to 0.3.X so intermediate source builds do not get an inappropriate version number
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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 uint32_t MCLKS_PER_68K; |
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31 #define MCLKS_PER_YM 7 |
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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 #define DEFAULT_LOWPASS_CUTOFF 3390 |
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36 |
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37 //TODO: Figure out the exact value for this |
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Get frame time correct and frame rate sort of correct for EUR region
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38 #define LINES_NTSC 262 |
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39 #define LINES_PAL 312 |
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40 |
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Implement turbo/slow motion feature that overclocks or underclocks the entire system at the push of a button
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41 #define MAX_SOUND_CYCLES 100000 |
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42 |
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43 #ifdef __ANDROID__ |
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44 #define FULLSCREEN_DEFAULT 1 |
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45 #else |
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46 #define FULLSCREEN_DEFAULT 0 |
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47 #endif |
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48 |
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49 uint16_t *cart; |
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50 uint16_t *ram; |
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51 uint8_t z80_ram[Z80_RAM_BYTES]; |
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52 |
215
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Added headless flag to avoid initializing SDL and opening a window when running tests.
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53 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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54 int exit_after = 0; |
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Add -n flag for disabling the Z80 core
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55 int z80_enabled = 1; |
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Get rid of debug puts and limit based on audio rather than frame rate by default.
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56 int frame_limit = 0; |
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57 |
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Add config file parser and default config file
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58 tern_node * config; |
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59 |
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60 #ifndef MIN |
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61 #define MIN(a,b) ((a) < (b) ? (a) : (b)) |
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62 #endif |
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63 |
166 | 64 #define SMD_HEADER_SIZE 512 |
65 #define SMD_MAGIC1 0x03 | |
66 #define SMD_MAGIC2 0xAA | |
67 #define SMD_MAGIC3 0xBB | |
68 #define SMD_BLOCK_SIZE 0x4000 | |
69 | |
70 int load_smd_rom(long filesize, FILE * f) | |
71 { | |
72 uint8_t block[SMD_BLOCK_SIZE]; | |
73 filesize -= SMD_HEADER_SIZE; | |
74 fseek(f, SMD_HEADER_SIZE, SEEK_SET); | |
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75 |
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76 uint16_t * dst = cart = malloc(nearest_pow2(filesize)); |
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77 int rom_size = filesize; |
166 | 78 while (filesize > 0) { |
79 fread(block, 1, SMD_BLOCK_SIZE, f); | |
80 for (uint8_t *low = block, *high = (block+SMD_BLOCK_SIZE/2), *end = block+SMD_BLOCK_SIZE; high < end; high++, low++) { | |
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81 *(dst++) = *low << 8 | *high; |
166 | 82 } |
83 filesize -= SMD_BLOCK_SIZE; | |
84 } | |
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85 return rom_size; |
166 | 86 } |
87 | |
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88 void byteswap_rom(int filesize) |
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89 { |
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90 for(unsigned short * cur = cart; cur - cart < filesize/2; ++cur) |
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91 { |
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92 *cur = (*cur >> 8) | (*cur << 8); |
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93 } |
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94 } |
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95 |
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96 int load_rom(char * filename) |
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97 { |
166 | 98 uint8_t header[10]; |
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99 FILE * f = fopen(filename, "rb"); |
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100 if (!f) { |
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101 return 0; |
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102 } |
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103 if (sizeof(header) != fread(header, 1, sizeof(header), f)) { |
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104 fatal_error("Error reading from %s\n", filename); |
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105 } |
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106 fseek(f, 0, SEEK_END); |
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107 long filesize = ftell(f); |
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108 fseek(f, 0, SEEK_SET); |
166 | 109 if (header[1] == SMD_MAGIC1 && header[8] == SMD_MAGIC2 && header[9] == SMD_MAGIC3) { |
110 int i; | |
111 for (i = 3; i < 8; i++) { | |
112 if (header[i] != 0) { | |
113 break; | |
114 } | |
115 } | |
116 if (i == 8) { | |
117 if (header[2]) { | |
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118 fatal_error("%s is a split SMD ROM which is not currently supported", filename); |
166 | 119 } |
120 return load_smd_rom(filesize, f); | |
121 } | |
122 } | |
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123 cart = malloc(nearest_pow2(filesize)); |
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124 if (filesize != fread(cart, 1, filesize, f)) { |
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125 fatal_error("Error reading from %s\n", filename); |
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126 } |
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127 fclose(f); |
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128 return filesize; |
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129 } |
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130 |
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131 uint16_t read_dma_value(uint32_t address) |
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132 { |
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133 //addresses here are word addresses (i.e. bit 0 corresponds to A1), so no need to do div by 2 |
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134 if (address < 0x200000) { |
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135 return cart[address]; |
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136 } else if(address >= 0x700000) { |
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137 return ram[address & 0x7FFF]; |
918
2e465934bddc
Allow DMA from cartridge ROM above the 4MB mark. Should probably use get_native_pointer for everyting, but want to check the performance implications
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138 } else { |
2e465934bddc
Allow DMA from cartridge ROM above the 4MB mark. Should probably use get_native_pointer for everyting, but want to check the performance implications
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139 uint16_t *ptr = get_native_pointer(address*2, (void **)genesis->m68k->mem_pointers, &genesis->m68k->options->gen); |
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Allow DMA from cartridge ROM above the 4MB mark. Should probably use get_native_pointer for everyting, but want to check the performance implications
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140 if (ptr) { |
2e465934bddc
Allow DMA from cartridge ROM above the 4MB mark. Should probably use get_native_pointer for everyting, but want to check the performance implications
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141 return *ptr; |
2e465934bddc
Allow DMA from cartridge ROM above the 4MB mark. Should probably use get_native_pointer for everyting, but want to check the performance implications
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diff
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142 } |
88
c339559f1d4f
Forgot to add blastem main file earlier
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diff
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143 } |
c339559f1d4f
Forgot to add blastem main file earlier
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144 //TODO: Figure out what happens when you try to DMA from weird adresses like IO or banked Z80 area |
c339559f1d4f
Forgot to add blastem main file earlier
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diff
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145 return 0; |
c339559f1d4f
Forgot to add blastem main file earlier
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146 } |
c339559f1d4f
Forgot to add blastem main file earlier
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diff
changeset
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147 |
981
902c53d9c16f
Half assed, prefetch based open bus value emulation. Gets BlastEm up to 119/122 in VDP FIFO Testing
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148 uint16_t get_open_bus_value() |
902c53d9c16f
Half assed, prefetch based open bus value emulation. Gets BlastEm up to 119/122 in VDP FIFO Testing
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diff
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149 { |
902c53d9c16f
Half assed, prefetch based open bus value emulation. Gets BlastEm up to 119/122 in VDP FIFO Testing
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diff
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|
150 return read_dma_value(genesis->m68k->last_prefetch_address/2); |
902c53d9c16f
Half assed, prefetch based open bus value emulation. Gets BlastEm up to 119/122 in VDP FIFO Testing
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diff
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151 } |
902c53d9c16f
Half assed, prefetch based open bus value emulation. Gets BlastEm up to 119/122 in VDP FIFO Testing
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diff
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152 |
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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diff
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153 void adjust_int_cycle(m68k_context * context, vdp_context * v_context) |
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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154 { |
717
22dbdf50d33c
Small correction to VBLANK flag timing. Fixed some inconsistencies in interrupt timing calculation.
Michael Pavone <pavone@retrodev.com>
parents:
700
diff
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155 //static int old_int_cycle = CYCLE_NEVER; |
696
0b2242bbc84a
Added config option to allow specifying a max sync cycle smaller than the end of frame
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diff
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156 genesis_context *gen = context->system; |
0b2242bbc84a
Added config option to allow specifying a max sync cycle smaller than the end of frame
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157 if (context->sync_cycle - context->current_cycle > gen->max_cycles) { |
0b2242bbc84a
Added config option to allow specifying a max sync cycle smaller than the end of frame
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158 context->sync_cycle = context->current_cycle + gen->max_cycles; |
0b2242bbc84a
Added config option to allow specifying a max sync cycle smaller than the end of frame
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695
diff
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159 } |
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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160 context->int_cycle = CYCLE_NEVER; |
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161 if ((context->status & 0x7) < 6) { |
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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162 uint32_t next_vint = vdp_next_vint(v_context); |
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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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163 if (next_vint != CYCLE_NEVER) { |
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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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164 context->int_cycle = next_vint; |
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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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165 context->int_num = 6; |
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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166 } |
e5e8b48ad157
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167 if ((context->status & 0x7) < 4) { |
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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|
168 uint32_t next_hint = vdp_next_hint(v_context); |
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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parents:
290
diff
changeset
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169 if (next_hint != CYCLE_NEVER) { |
995
2bc27415565b
Fix some stuff with interrupt timing. The change in adjust_int_cycle gets Overdrive working again (vint was not being preferred over hint in some cases). One of the changes seems to have broken Fatal Rewind again, but no other regressions that I can see.
Michael Pavone <pavone@retrodev.com>
parents:
981
diff
changeset
|
170 next_hint = next_hint < context->current_cycle ? context->current_cycle : next_hint; |
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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171 if (next_hint < context->int_cycle) { |
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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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172 context->int_cycle = next_hint; |
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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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|
173 context->int_num = 4; |
488
32f053ad9b02
Basic OpenGL rendering is working
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487
diff
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174 |
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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175 } |
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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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diff
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|
176 } |
186
02e25abe2dcd
Cleanup VINT code and fix bug in which VINT cycle would be set incorrectly after a VDP control port write
Mike Pavone <pavone@retrodev.com>
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185
diff
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|
177 } |
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
|
178 } |
996
784bc1e45e80
Fix 68K interrupt handling some more. Fatal Rewind is working again.
Michael Pavone <pavone@retrodev.com>
parents:
995
diff
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|
179 if (context->int_cycle > context->current_cycle && context->int_pending == INT_PENDING_SR_CHANGE) { |
846
98d7b6073163
Implement interrupt latency. Fixes Sesame Street: Counting Cafe and gives accurate results in my test ROM
Michael Pavone <pavone@retrodev.com>
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844
diff
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180 context->int_pending = 0; |
98d7b6073163
Implement interrupt latency. Fixes Sesame Street: Counting Cafe and gives accurate results in my test ROM
Michael Pavone <pavone@retrodev.com>
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844
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181 } |
717
22dbdf50d33c
Small correction to VBLANK flag timing. Fixed some inconsistencies in interrupt timing calculation.
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182 /*if (context->int_cycle != old_int_cycle) { |
22dbdf50d33c
Small correction to VBLANK flag timing. Fixed some inconsistencies in interrupt timing calculation.
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parents:
700
diff
changeset
|
183 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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parents:
700
diff
changeset
|
184 old_int_cycle = context->int_cycle; |
22dbdf50d33c
Small correction to VBLANK flag timing. Fixed some inconsistencies in interrupt timing calculation.
Michael Pavone <pavone@retrodev.com>
parents:
700
diff
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185 }*/ |
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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186 |
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
changeset
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187 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
Michael Pavone <pavone@retrodev.com>
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diff
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|
188 if (context->should_return) { |
7022ba865cfd
Initial work for allowing loading a ROM from menu
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diff
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189 context->target_cycle = context->current_cycle; |
891
90d54ccf9557
Fix a bad interaction between the implementation of STOP and the way interrupt cycles are calculated. Prevent addition of refresh delays while VDP has the bus.
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diff
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190 } else if (context->target_cycle < context->current_cycle) { |
90d54ccf9557
Fix a bad interaction between the implementation of STOP and the way interrupt cycles are calculated. Prevent addition of refresh delays while VDP has the bus.
Michael Pavone <pavone@retrodev.com>
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diff
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|
191 //Changes to SR can result in an interrupt cycle that's in the past |
90d54ccf9557
Fix a bad interaction between the implementation of STOP and the way interrupt cycles are calculated. Prevent addition of refresh delays while VDP has the bus.
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diff
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192 //This can cause issues with the implementation of STOP though |
90d54ccf9557
Fix a bad interaction between the implementation of STOP and the way interrupt cycles are calculated. Prevent addition of refresh delays while VDP has the bus.
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diff
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|
193 context->target_cycle = context->current_cycle; |
872
7022ba865cfd
Initial work for allowing loading a ROM from menu
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diff
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|
194 } |
488
32f053ad9b02
Basic OpenGL rendering is working
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487
diff
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|
195 /*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
Mike Pavone <pavone@retrodev.com>
parents:
487
diff
changeset
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196 context->current_cycle, context->target_cycle, context->int_cycle, context->int_num, (context->status & 0x7), |
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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|
197 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
Mike Pavone <pavone@retrodev.com>
parents:
185
diff
changeset
|
198 } |
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
|
199 |
198
209a37eed3e7
Add support for breaking into the debugger while game is running
Mike Pavone <pavone@retrodev.com>
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197
diff
changeset
|
200 int break_on_sync = 0; |
955
229c23b3ab73
Switch to storing SRAM/EEPROM and save states in a per-game directory rather than next to the ROM (for SRAM/EEPROM) or in the current working directory (for save states)
Michael Pavone <pavone@retrodev.com>
parents:
953
diff
changeset
|
201 char *save_state_path; |
260
625f8e4d5fd2
Initial stab at integartiong Z80 core
Mike Pavone <pavone@retrodev.com>
parents:
215
diff
changeset
|
202 |
280 | 203 //#define DO_DEBUG_PRINT |
268
6c2d7e003a55
Sync Z80 on writes to busreq/reset ports. NULL out extra_pc on z80 reset
Mike Pavone <pavone@retrodev.com>
parents:
266
diff
changeset
|
204 #ifdef DO_DEBUG_PRINT |
6c2d7e003a55
Sync Z80 on writes to busreq/reset ports. NULL out extra_pc on z80 reset
Mike Pavone <pavone@retrodev.com>
parents:
266
diff
changeset
|
205 #define dprintf printf |
271
969ee17471c5
Protect debug prints for busreq/reset regs with appropriate macros
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268
diff
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206 #define dputs puts |
268
6c2d7e003a55
Sync Z80 on writes to busreq/reset ports. NULL out extra_pc on z80 reset
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266
diff
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|
207 #else |
6c2d7e003a55
Sync Z80 on writes to busreq/reset ports. NULL out extra_pc on z80 reset
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266
diff
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|
208 #define dprintf |
271
969ee17471c5
Protect debug prints for busreq/reset regs with appropriate macros
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parents:
268
diff
changeset
|
209 #define dputs |
268
6c2d7e003a55
Sync Z80 on writes to busreq/reset ports. NULL out extra_pc on z80 reset
Mike Pavone <pavone@retrodev.com>
parents:
266
diff
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|
210 #endif |
6c2d7e003a55
Sync Z80 on writes to busreq/reset ports. NULL out extra_pc on z80 reset
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parents:
266
diff
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|
211 |
402
de2c085ce174
Assert z80 interrupt longer so that they are not missed when they should not be
Mike Pavone <pavone@retrodev.com>
parents:
398
diff
changeset
|
212 #define Z80_VINT_DURATION 128 |
de2c085ce174
Assert z80 interrupt longer so that they are not missed when they should not be
Mike Pavone <pavone@retrodev.com>
parents:
398
diff
changeset
|
213 |
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
|
214 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
Michael Pavone <pavone@retrodev.com>
parents:
667
diff
changeset
|
215 { |
682 | 216 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
Michael Pavone <pavone@retrodev.com>
parents:
667
diff
changeset
|
217 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
Michael Pavone <pavone@retrodev.com>
parents:
669
diff
changeset
|
218 z_context->int_pulse_end = z_context->int_pulse_start + Z80_VINT_DURATION * MCLKS_PER_Z80; |
682 | 219 } |
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
|
220 |
268
6c2d7e003a55
Sync Z80 on writes to busreq/reset ports. NULL out extra_pc on z80 reset
Mike Pavone <pavone@retrodev.com>
parents:
266
diff
changeset
|
221 void sync_z80(z80_context * z_context, uint32_t mclks) |
88
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
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|
222 { |
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
|
223 #ifndef NO_Z80 |
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
|
224 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:
667
diff
changeset
|
225 z80_run(z_context, mclks); |
548
a3afee2271ce
Initial work on the x86-32 target
Michael Pavone <pavone@retrodev.com>
parents:
534
diff
changeset
|
226 } else |
a3afee2271ce
Initial work on the x86-32 target
Michael Pavone <pavone@retrodev.com>
parents:
534
diff
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|
227 #endif |
a3afee2271ce
Initial work on the x86-32 target
Michael Pavone <pavone@retrodev.com>
parents:
534
diff
changeset
|
228 { |
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
|
229 z_context->current_cycle = mclks; |
260
625f8e4d5fd2
Initial stab at integartiong Z80 core
Mike Pavone <pavone@retrodev.com>
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215
diff
changeset
|
230 } |
268
6c2d7e003a55
Sync Z80 on writes to busreq/reset ports. NULL out extra_pc on z80 reset
Mike Pavone <pavone@retrodev.com>
parents:
266
diff
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|
231 } |
380
1c8d74f2ab0b
Make the PSG and YM2612 use the master clock internal with an increment based on clock divider so that they stay perflectly in sync. Run both the PSG and YM2612 whenver one of them needs to be run.
Mike Pavone <pavone@retrodev.com>
parents:
374
diff
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|
232 |
1c8d74f2ab0b
Make the PSG and YM2612 use the master clock internal with an increment based on clock divider so that they stay perflectly in sync. Run both the PSG and YM2612 whenver one of them needs to be run.
Mike Pavone <pavone@retrodev.com>
parents:
374
diff
changeset
|
233 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.
Mike Pavone <pavone@retrodev.com>
parents:
374
diff
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|
234 { |
1c8d74f2ab0b
Make the PSG and YM2612 use the master clock internal with an increment based on clock divider so that they stay perflectly in sync. Run both the PSG and YM2612 whenver one of them needs to be run.
Mike Pavone <pavone@retrodev.com>
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374
diff
changeset
|
235 //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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|
236 while (target > gen->psg->cycles && target - gen->psg->cycles > MAX_SOUND_CYCLES) { |
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parents:
482
diff
changeset
|
237 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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parents:
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diff
changeset
|
238 //printf("Running PSG to cycle %d\n", cur_target); |
3e1573fa22cf
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parents:
482
diff
changeset
|
239 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
Mike Pavone <pavone@retrodev.com>
parents:
482
diff
changeset
|
240 //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
Mike Pavone <pavone@retrodev.com>
parents:
482
diff
changeset
|
241 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
Mike Pavone <pavone@retrodev.com>
parents:
482
diff
changeset
|
242 } |
380
1c8d74f2ab0b
Make the PSG and YM2612 use the master clock internal with an increment based on clock divider so that they stay perflectly in sync. Run both the PSG and YM2612 whenver one of them needs to be run.
Mike Pavone <pavone@retrodev.com>
parents:
374
diff
changeset
|
243 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.
Mike Pavone <pavone@retrodev.com>
parents:
374
diff
changeset
|
244 ym_run(gen->ym, target); |
488
32f053ad9b02
Basic OpenGL rendering is working
Mike Pavone <pavone@retrodev.com>
parents:
487
diff
changeset
|
245 |
380
1c8d74f2ab0b
Make the PSG and YM2612 use the master clock internal with an increment based on clock divider so that they stay perflectly in sync. Run both the PSG and YM2612 whenver one of them needs to be run.
Mike Pavone <pavone@retrodev.com>
parents:
374
diff
changeset
|
246 //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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parents:
374
diff
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|
247 } |
1c8d74f2ab0b
Make the PSG and YM2612 use the master clock internal with an increment based on clock divider so that they stay perflectly in sync. Run both the PSG and YM2612 whenver one of them needs to be run.
Mike Pavone <pavone@retrodev.com>
parents:
374
diff
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248 |
978
34b811ea1e7c
Disable refresh emulation with some ifdefs for now as it currently is not accurate enough to actually improve overall accuracy/compatibility and in fact makes things that work right on real hardware break
Michael Pavone <pavone@retrodev.com>
parents:
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diff
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|
249 uint32_t last_frame_num; |
34b811ea1e7c
Disable refresh emulation with some ifdefs for now as it currently is not accurate enough to actually improve overall accuracy/compatibility and in fact makes things that work right on real hardware break
Michael Pavone <pavone@retrodev.com>
parents:
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diff
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250 |
34b811ea1e7c
Disable refresh emulation with some ifdefs for now as it currently is not accurate enough to actually improve overall accuracy/compatibility and in fact makes things that work right on real hardware break
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|
251 //My refresh emulation isn't currently good enough and causes more problems than it solves |
34b811ea1e7c
Disable refresh emulation with some ifdefs for now as it currently is not accurate enough to actually improve overall accuracy/compatibility and in fact makes things that work right on real hardware break
Michael Pavone <pavone@retrodev.com>
parents:
975
diff
changeset
|
252 #ifdef REFRESH_EMULATION |
928
8bd82aead087
Minor adjustment to refresh interval to better match latest measurements
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diff
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|
253 #define REFRESH_INTERVAL 128 |
889
2d1122123fe9
Approximation of refresh wait states
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254 #define REFRESH_DELAY 2 |
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Approximation of refresh wait states
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diff
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255 uint32_t last_sync_cycle; |
2d1122123fe9
Approximation of refresh wait states
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diff
changeset
|
256 uint32_t refresh_counter; |
978
34b811ea1e7c
Disable refresh emulation with some ifdefs for now as it currently is not accurate enough to actually improve overall accuracy/compatibility and in fact makes things that work right on real hardware break
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257 #endif |
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parents:
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258 |
268
6c2d7e003a55
Sync Z80 on writes to busreq/reset ports. NULL out extra_pc on z80 reset
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parents:
266
diff
changeset
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259 m68k_context * sync_components(m68k_context * context, uint32_t address) |
6c2d7e003a55
Sync Z80 on writes to busreq/reset ports. NULL out extra_pc on z80 reset
Mike Pavone <pavone@retrodev.com>
parents:
266
diff
changeset
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260 { |
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
|
261 genesis_context * gen = context->system; |
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
|
262 vdp_context * v_context = gen->vdp; |
a8ee7934a1f8
Add a YM2612 stub implementation with just timers and status registers so that games that depend on it can run.
Mike Pavone <pavone@retrodev.com>
parents:
280
diff
changeset
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263 z80_context * z_context = gen->z80; |
978
34b811ea1e7c
Disable refresh emulation with some ifdefs for now as it currently is not accurate enough to actually improve overall accuracy/compatibility and in fact makes things that work right on real hardware break
Michael Pavone <pavone@retrodev.com>
parents:
975
diff
changeset
|
264 #ifdef REFRESH_EMULATION |
889
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diff
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265 //lame estimation of refresh cycle delay |
891
90d54ccf9557
Fix a bad interaction between the implementation of STOP and the way interrupt cycles are calculated. Prevent addition of refresh delays while VDP has the bus.
Michael Pavone <pavone@retrodev.com>
parents:
889
diff
changeset
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266 if (!gen->bus_busy) { |
90d54ccf9557
Fix a bad interaction between the implementation of STOP and the way interrupt cycles are calculated. Prevent addition of refresh delays while VDP has the bus.
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parents:
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diff
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|
267 refresh_counter += context->current_cycle - last_sync_cycle; |
90d54ccf9557
Fix a bad interaction between the implementation of STOP and the way interrupt cycles are calculated. Prevent addition of refresh delays while VDP has the bus.
Michael Pavone <pavone@retrodev.com>
parents:
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diff
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268 context->current_cycle += REFRESH_DELAY * MCLKS_PER_68K * (refresh_counter / (MCLKS_PER_68K * REFRESH_INTERVAL)); |
90d54ccf9557
Fix a bad interaction between the implementation of STOP and the way interrupt cycles are calculated. Prevent addition of refresh delays while VDP has the bus.
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diff
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269 refresh_counter = refresh_counter % (MCLKS_PER_68K * REFRESH_INTERVAL); |
90d54ccf9557
Fix a bad interaction between the implementation of STOP and the way interrupt cycles are calculated. Prevent addition of refresh delays while VDP has the bus.
Michael Pavone <pavone@retrodev.com>
parents:
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diff
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270 } |
978
34b811ea1e7c
Disable refresh emulation with some ifdefs for now as it currently is not accurate enough to actually improve overall accuracy/compatibility and in fact makes things that work right on real hardware break
Michael Pavone <pavone@retrodev.com>
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|
271 #endif |
889
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272 |
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:
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diff
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273 uint32_t mclks = context->current_cycle; |
268
6c2d7e003a55
Sync Z80 on writes to busreq/reset ports. NULL out extra_pc on z80 reset
Mike Pavone <pavone@retrodev.com>
parents:
266
diff
changeset
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274 sync_z80(z_context, mclks); |
695 | 275 sync_sound(gen, mclks); |
697
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Sync fixes and logging to fix more sync issues
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696
diff
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276 vdp_run_context(v_context, mclks); |
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parents:
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diff
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277 if (v_context->frame != last_frame_num) { |
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parents:
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diff
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278 //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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|
279 last_frame_num = v_context->frame; |
488
32f053ad9b02
Basic OpenGL rendering is working
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diff
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280 |
697
7f96bd1cb1be
Sync fixes and logging to fix more sync issues
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696
diff
changeset
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281 if (!headless) { |
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parents:
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diff
changeset
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282 break_on_sync |= wait_render_frame(v_context, frame_limit); |
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diff
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283 } else if(exit_after){ |
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diff
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284 --exit_after; |
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285 if (!exit_after) { |
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diff
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286 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.
Michael Pavone <pavone@retrodev.com>
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501
diff
changeset
|
287 } |
88
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
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|
288 } |
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
diff
changeset
|
289 |
697
7f96bd1cb1be
Sync fixes and logging to fix more sync issues
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696
diff
changeset
|
290 vdp_adjust_cycles(v_context, mclks); |
7f96bd1cb1be
Sync fixes and logging to fix more sync issues
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parents:
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diff
changeset
|
291 io_adjust_cycles(gen->ports, context->current_cycle, mclks); |
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Sync fixes and logging to fix more sync issues
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parents:
696
diff
changeset
|
292 io_adjust_cycles(gen->ports+1, context->current_cycle, mclks); |
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Sync fixes and logging to fix more sync issues
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parents:
696
diff
changeset
|
293 io_adjust_cycles(gen->ports+2, context->current_cycle, mclks); |
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Sync fixes and logging to fix more sync issues
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parents:
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diff
changeset
|
294 context->current_cycle -= mclks; |
7f96bd1cb1be
Sync fixes and logging to fix more sync issues
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parents:
696
diff
changeset
|
295 z80_adjust_cycles(z_context, mclks); |
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Sync fixes and logging to fix more sync issues
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parents:
696
diff
changeset
|
296 gen->ym->current_cycle -= mclks; |
7f96bd1cb1be
Sync fixes and logging to fix more sync issues
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diff
changeset
|
297 gen->psg->cycles -= mclks; |
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Sync fixes and logging to fix more sync issues
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parents:
696
diff
changeset
|
298 if (gen->ym->write_cycle != CYCLE_NEVER) { |
7f96bd1cb1be
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parents:
696
diff
changeset
|
299 gen->ym->write_cycle = gen->ym->write_cycle >= mclks ? gen->ym->write_cycle - mclks : 0; |
7f96bd1cb1be
Sync fixes and logging to fix more sync issues
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parents:
696
diff
changeset
|
300 } |
88
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
301 } |
700 | 302 gen->frame_end = vdp_cycles_to_frame_end(v_context); |
697
7f96bd1cb1be
Sync fixes and logging to fix more sync issues
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parents:
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diff
changeset
|
303 context->sync_cycle = gen->frame_end; |
7f96bd1cb1be
Sync fixes and logging to fix more sync issues
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parents:
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diff
changeset
|
304 //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>
parents:
290
diff
changeset
|
305 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>
parents:
717
diff
changeset
|
306 //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); |
953
08346262990b
Remove the int number argument to vdp_int_ack since it is no longer used
Michael Pavone <pavone@retrodev.com>
parents:
951
diff
changeset
|
307 vdp_int_ack(v_context); |
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>
parents:
290
diff
changeset
|
308 context->int_ack = 0; |
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>
parents:
290
diff
changeset
|
309 } |
961
750995b587a0
Save State menu option is now fully functional. Load state sort of works, but is mostly broken.
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parents:
957
diff
changeset
|
310 if (!address && (break_on_sync || gen->save_state)) { |
721
20be7d01e312
Better handling of savestate and debug break events with "uncooperative" games/demos
Michael Pavone <pavone@retrodev.com>
parents:
719
diff
changeset
|
311 context->sync_cycle = context->current_cycle + 1; |
20be7d01e312
Better handling of savestate and debug break events with "uncooperative" games/demos
Michael Pavone <pavone@retrodev.com>
parents:
719
diff
changeset
|
312 } |
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
|
313 adjust_int_cycle(context, v_context); |
451
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
447
diff
changeset
|
314 if (address) { |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
447
diff
changeset
|
315 if (break_on_sync) { |
695 | 316 break_on_sync = 0; |
317 debugger(context, address); | |
318 } | |
961
750995b587a0
Save State menu option is now fully functional. Load state sort of works, but is mostly broken.
Michael Pavone <pavone@retrodev.com>
parents:
957
diff
changeset
|
319 if (gen->save_state && (z_context->pc || (!z_context->reset && !z_context->busreq))) { |
750995b587a0
Save State menu option is now fully functional. Load state sort of works, but is mostly broken.
Michael Pavone <pavone@retrodev.com>
parents:
957
diff
changeset
|
320 uint8_t slot = gen->save_state - 1; |
750995b587a0
Save State menu option is now fully functional. Load state sort of works, but is mostly broken.
Michael Pavone <pavone@retrodev.com>
parents:
957
diff
changeset
|
321 gen->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>
parents:
661
diff
changeset
|
322 //advance Z80 core to the start of an instruction |
451
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
447
diff
changeset
|
323 while (!z_context->pc) |
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
447
diff
changeset
|
324 { |
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
|
325 sync_z80(z_context, z_context->current_cycle + MCLKS_PER_Z80); |
451
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
447
diff
changeset
|
326 } |
961
750995b587a0
Save State menu option is now fully functional. Load state sort of works, but is mostly broken.
Michael Pavone <pavone@retrodev.com>
parents:
957
diff
changeset
|
327 char *save_path; |
750995b587a0
Save State menu option is now fully functional. Load state sort of works, but is mostly broken.
Michael Pavone <pavone@retrodev.com>
parents:
957
diff
changeset
|
328 if (slot == QUICK_SAVE_SLOT) { |
750995b587a0
Save State menu option is now fully functional. Load state sort of works, but is mostly broken.
Michael Pavone <pavone@retrodev.com>
parents:
957
diff
changeset
|
329 save_path = save_state_path; |
750995b587a0
Save State menu option is now fully functional. Load state sort of works, but is mostly broken.
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parents:
957
diff
changeset
|
330 } else { |
750995b587a0
Save State menu option is now fully functional. Load state sort of works, but is mostly broken.
Michael Pavone <pavone@retrodev.com>
parents:
957
diff
changeset
|
331 char slotname[] = "slot_0.gst"; |
750995b587a0
Save State menu option is now fully functional. Load state sort of works, but is mostly broken.
Michael Pavone <pavone@retrodev.com>
parents:
957
diff
changeset
|
332 slotname[5] = '0' + slot; |
750995b587a0
Save State menu option is now fully functional. Load state sort of works, but is mostly broken.
Michael Pavone <pavone@retrodev.com>
parents:
957
diff
changeset
|
333 char const *parts[] = {gen->save_dir, "/", slotname}; |
750995b587a0
Save State menu option is now fully functional. Load state sort of works, but is mostly broken.
Michael Pavone <pavone@retrodev.com>
parents:
957
diff
changeset
|
334 save_path = alloc_concat_m(3, parts); |
750995b587a0
Save State menu option is now fully functional. Load state sort of works, but is mostly broken.
Michael Pavone <pavone@retrodev.com>
parents:
957
diff
changeset
|
335 } |
750995b587a0
Save State menu option is now fully functional. Load state sort of works, but is mostly broken.
Michael Pavone <pavone@retrodev.com>
parents:
957
diff
changeset
|
336 save_gst(gen, save_path, address); |
750995b587a0
Save State menu option is now fully functional. Load state sort of works, but is mostly broken.
Michael Pavone <pavone@retrodev.com>
parents:
957
diff
changeset
|
337 printf("Saved state to %s\n", save_path); |
750995b587a0
Save State menu option is now fully functional. Load state sort of works, but is mostly broken.
Michael Pavone <pavone@retrodev.com>
parents:
957
diff
changeset
|
338 if (slot != QUICK_SAVE_SLOT) { |
750995b587a0
Save State menu option is now fully functional. Load state sort of works, but is mostly broken.
Michael Pavone <pavone@retrodev.com>
parents:
957
diff
changeset
|
339 free(save_path); |
750995b587a0
Save State menu option is now fully functional. Load state sort of works, but is mostly broken.
Michael Pavone <pavone@retrodev.com>
parents:
957
diff
changeset
|
340 } |
750995b587a0
Save State menu option is now fully functional. Load state sort of works, but is mostly broken.
Michael Pavone <pavone@retrodev.com>
parents:
957
diff
changeset
|
341 } else if(gen->save_state) { |
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
|
342 context->sync_cycle = context->current_cycle + 1; |
451
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
447
diff
changeset
|
343 } |
198
209a37eed3e7
Add support for breaking into the debugger while game is running
Mike Pavone <pavone@retrodev.com>
parents:
197
diff
changeset
|
344 } |
978
34b811ea1e7c
Disable refresh emulation with some ifdefs for now as it currently is not accurate enough to actually improve overall accuracy/compatibility and in fact makes things that work right on real hardware break
Michael Pavone <pavone@retrodev.com>
parents:
975
diff
changeset
|
345 #ifdef REFRESH_EMULATION |
889
2d1122123fe9
Approximation of refresh wait states
Michael Pavone <pavone@retrodev.com>
parents:
885
diff
changeset
|
346 last_sync_cycle = context->current_cycle; |
978
34b811ea1e7c
Disable refresh emulation with some ifdefs for now as it currently is not accurate enough to actually improve overall accuracy/compatibility and in fact makes things that work right on real hardware break
Michael Pavone <pavone@retrodev.com>
parents:
975
diff
changeset
|
347 #endif |
88
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
348 return context; |
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
349 } |
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
350 |
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
351 m68k_context * vdp_port_write(uint32_t vdp_port, m68k_context * context, uint16_t value) |
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
352 { |
343
467bfa17004a
Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents:
342
diff
changeset
|
353 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
|
354 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
Mike Pavone <pavone@retrodev.com>
parents:
342
diff
changeset
|
355 } |
467bfa17004a
Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents:
342
diff
changeset
|
356 vdp_port &= 0x1F; |
88
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
357 //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
Mike Pavone <pavone@retrodev.com>
parents:
197
diff
changeset
|
358 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
|
359 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
|
360 vdp_context *v_context = gen->vdp; |
88
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
361 if (vdp_port < 0x10) { |
149
139e5dcd6aa3
Make writes to control and data port block when DMA is in progress
Mike Pavone <pavone@retrodev.com>
parents:
144
diff
changeset
|
362 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
|
363 uint32_t before_cycle = v_context->cycles; |
88
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
364 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
|
365 |
149
139e5dcd6aa3
Make writes to control and data port block when DMA is in progress
Mike Pavone <pavone@retrodev.com>
parents:
144
diff
changeset
|
366 while (vdp_data_port_write(v_context, value) < 0) { |
88
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
367 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
|
368 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
|
369 if (v_context->cycles >= gen->frame_end) { |
997
560da2e455c2
YOUR EMULATOR SUX is dead. Needs logic analyzer testing to check exact delay though.
Michael Pavone <pavone@retrodev.com>
parents:
996
diff
changeset
|
370 uint32_t cycle_diff = v_context->cycles - context->current_cycle; |
560da2e455c2
YOUR EMULATOR SUX is dead. Needs logic analyzer testing to check exact delay though.
Michael Pavone <pavone@retrodev.com>
parents:
996
diff
changeset
|
371 uint32_t m68k_cycle_diff = (cycle_diff / MCLKS_PER_68K) * MCLKS_PER_68K; |
560da2e455c2
YOUR EMULATOR SUX is dead. Needs logic analyzer testing to check exact delay though.
Michael Pavone <pavone@retrodev.com>
parents:
996
diff
changeset
|
372 if (m68k_cycle_diff < cycle_diff) { |
560da2e455c2
YOUR EMULATOR SUX is dead. Needs logic analyzer testing to check exact delay though.
Michael Pavone <pavone@retrodev.com>
parents:
996
diff
changeset
|
373 m68k_cycle_diff += MCLKS_PER_68K; |
560da2e455c2
YOUR EMULATOR SUX is dead. Needs logic analyzer testing to check exact delay though.
Michael Pavone <pavone@retrodev.com>
parents:
996
diff
changeset
|
374 } |
560da2e455c2
YOUR EMULATOR SUX is dead. Needs logic analyzer testing to check exact delay though.
Michael Pavone <pavone@retrodev.com>
parents:
996
diff
changeset
|
375 context->current_cycle += m68k_cycle_diff; |
697
7f96bd1cb1be
Sync fixes and logging to fix more sync issues
Michael Pavone <pavone@retrodev.com>
parents:
696
diff
changeset
|
376 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
|
377 sync_components(context, 0); |
697
7f96bd1cb1be
Sync fixes and logging to fix more sync issues
Michael Pavone <pavone@retrodev.com>
parents:
696
diff
changeset
|
378 gen->bus_busy = 0; |
88
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 } |
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
|
381 //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
|
382 } |
139e5dcd6aa3
Make writes to control and data port block when DMA is in progress
Mike Pavone <pavone@retrodev.com>
parents:
144
diff
changeset
|
383 } 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
|
384 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
|
385 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
|
386 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
|
387 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
|
388 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
|
389 if (v_context->cycles >= gen->frame_end) { |
997
560da2e455c2
YOUR EMULATOR SUX is dead. Needs logic analyzer testing to check exact delay though.
Michael Pavone <pavone@retrodev.com>
parents:
996
diff
changeset
|
390 uint32_t cycle_diff = v_context->cycles - context->current_cycle; |
560da2e455c2
YOUR EMULATOR SUX is dead. Needs logic analyzer testing to check exact delay though.
Michael Pavone <pavone@retrodev.com>
parents:
996
diff
changeset
|
391 uint32_t m68k_cycle_diff = (cycle_diff / MCLKS_PER_68K) * MCLKS_PER_68K; |
560da2e455c2
YOUR EMULATOR SUX is dead. Needs logic analyzer testing to check exact delay though.
Michael Pavone <pavone@retrodev.com>
parents:
996
diff
changeset
|
392 if (m68k_cycle_diff < cycle_diff) { |
560da2e455c2
YOUR EMULATOR SUX is dead. Needs logic analyzer testing to check exact delay though.
Michael Pavone <pavone@retrodev.com>
parents:
996
diff
changeset
|
393 m68k_cycle_diff += MCLKS_PER_68K; |
560da2e455c2
YOUR EMULATOR SUX is dead. Needs logic analyzer testing to check exact delay though.
Michael Pavone <pavone@retrodev.com>
parents:
996
diff
changeset
|
394 } |
560da2e455c2
YOUR EMULATOR SUX is dead. Needs logic analyzer testing to check exact delay though.
Michael Pavone <pavone@retrodev.com>
parents:
996
diff
changeset
|
395 context->current_cycle += m68k_cycle_diff; |
697
7f96bd1cb1be
Sync fixes and logging to fix more sync issues
Michael Pavone <pavone@retrodev.com>
parents:
696
diff
changeset
|
396 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
|
397 sync_components(context, 0); |
697
7f96bd1cb1be
Sync fixes and logging to fix more sync issues
Michael Pavone <pavone@retrodev.com>
parents:
696
diff
changeset
|
398 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
|
399 } |
997
560da2e455c2
YOUR EMULATOR SUX is dead. Needs logic analyzer testing to check exact delay though.
Michael Pavone <pavone@retrodev.com>
parents:
996
diff
changeset
|
400 if (!(v_context->flags & FLAG_DMA_RUN)) { |
560da2e455c2
YOUR EMULATOR SUX is dead. Needs logic analyzer testing to check exact delay though.
Michael Pavone <pavone@retrodev.com>
parents:
996
diff
changeset
|
401 //two more slots of delay are needed to kill sufficient sprite capacity in Overdrive |
560da2e455c2
YOUR EMULATOR SUX is dead. Needs logic analyzer testing to check exact delay though.
Michael Pavone <pavone@retrodev.com>
parents:
996
diff
changeset
|
402 //TODO: Measure exact value with logic analyzer |
560da2e455c2
YOUR EMULATOR SUX is dead. Needs logic analyzer testing to check exact delay though.
Michael Pavone <pavone@retrodev.com>
parents:
996
diff
changeset
|
403 vdp_run_context(v_context, v_context->cycles + 1); |
560da2e455c2
YOUR EMULATOR SUX is dead. Needs logic analyzer testing to check exact delay though.
Michael Pavone <pavone@retrodev.com>
parents:
996
diff
changeset
|
404 vdp_run_context(v_context, v_context->cycles + 1); |
560da2e455c2
YOUR EMULATOR SUX is dead. Needs logic analyzer testing to check exact delay though.
Michael Pavone <pavone@retrodev.com>
parents:
996
diff
changeset
|
405 } |
149
139e5dcd6aa3
Make writes to control and data port block when DMA is in progress
Mike Pavone <pavone@retrodev.com>
parents:
144
diff
changeset
|
406 } |
997
560da2e455c2
YOUR EMULATOR SUX is dead. Needs logic analyzer testing to check exact delay though.
Michael Pavone <pavone@retrodev.com>
parents:
996
diff
changeset
|
407 |
149
139e5dcd6aa3
Make writes to control and data port block when DMA is in progress
Mike Pavone <pavone@retrodev.com>
parents:
144
diff
changeset
|
408 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
|
409 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
|
410 } else { |
139e5dcd6aa3
Make writes to control and data port block when DMA is in progress
Mike Pavone <pavone@retrodev.com>
parents:
144
diff
changeset
|
411 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
|
412 } |
139e5dcd6aa3
Make writes to control and data port block when DMA is in progress
Mike Pavone <pavone@retrodev.com>
parents:
144
diff
changeset
|
413 } |
88
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
414 } else { |
697
7f96bd1cb1be
Sync fixes and logging to fix more sync issues
Michael Pavone <pavone@retrodev.com>
parents:
696
diff
changeset
|
415 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
|
416 //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
|
417 adjust_int_cycle(context, v_context); |
88
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
418 } |
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
419 } 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
|
420 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
|
421 } |
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
|
422 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
|
423 //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); |
997
560da2e455c2
YOUR EMULATOR SUX is dead. Needs logic analyzer testing to check exact delay though.
Michael Pavone <pavone@retrodev.com>
parents:
996
diff
changeset
|
424 uint32_t cycle_diff = v_context->cycles - context->current_cycle; |
560da2e455c2
YOUR EMULATOR SUX is dead. Needs logic analyzer testing to check exact delay though.
Michael Pavone <pavone@retrodev.com>
parents:
996
diff
changeset
|
425 uint32_t m68k_cycle_diff = (cycle_diff / MCLKS_PER_68K) * MCLKS_PER_68K; |
560da2e455c2
YOUR EMULATOR SUX is dead. Needs logic analyzer testing to check exact delay though.
Michael Pavone <pavone@retrodev.com>
parents:
996
diff
changeset
|
426 if (m68k_cycle_diff < cycle_diff) { |
560da2e455c2
YOUR EMULATOR SUX is dead. Needs logic analyzer testing to check exact delay though.
Michael Pavone <pavone@retrodev.com>
parents:
996
diff
changeset
|
427 m68k_cycle_diff += MCLKS_PER_68K; |
560da2e455c2
YOUR EMULATOR SUX is dead. Needs logic analyzer testing to check exact delay though.
Michael Pavone <pavone@retrodev.com>
parents:
996
diff
changeset
|
428 } |
560da2e455c2
YOUR EMULATOR SUX is dead. Needs logic analyzer testing to check exact delay though.
Michael Pavone <pavone@retrodev.com>
parents:
996
diff
changeset
|
429 context->current_cycle += m68k_cycle_diff; |
978
34b811ea1e7c
Disable refresh emulation with some ifdefs for now as it currently is not accurate enough to actually improve overall accuracy/compatibility and in fact makes things that work right on real hardware break
Michael Pavone <pavone@retrodev.com>
parents:
975
diff
changeset
|
430 #ifdef REFRESH_EMULATION |
34b811ea1e7c
Disable refresh emulation with some ifdefs for now as it currently is not accurate enough to actually improve overall accuracy/compatibility and in fact makes things that work right on real hardware break
Michael Pavone <pavone@retrodev.com>
parents:
975
diff
changeset
|
431 last_sync_cycle = context->current_cycle; |
34b811ea1e7c
Disable refresh emulation with some ifdefs for now as it currently is not accurate enough to actually improve overall accuracy/compatibility and in fact makes things that work right on real hardware break
Michael Pavone <pavone@retrodev.com>
parents:
975
diff
changeset
|
432 #endif |
680
4996369f1463
Some small synchronization improvements that do not seem to fix anything
Michael Pavone <pavone@retrodev.com>
parents:
679
diff
changeset
|
433 //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
|
434 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
|
435 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
|
436 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
|
437 } |
88
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
438 } else if (vdp_port < 0x18) { |
354
15dd6418fe67
Initial PSG support. Mostly works, noise channel is borked though.
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parents:
351
diff
changeset
|
439 psg_write(gen->psg, value); |
88
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440 } else { |
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diff
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441 //TODO: Implement undocumented test register(s) |
c339559f1d4f
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parents:
diff
changeset
|
442 } |
c339559f1d4f
Forgot to add blastem main file earlier
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changeset
|
443 return context; |
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diff
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|
444 } |
c339559f1d4f
Forgot to add blastem main file earlier
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diff
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|
445 |
343
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|
446 m68k_context * vdp_port_write_b(uint32_t vdp_port, m68k_context * context, uint8_t value) |
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diff
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447 { |
357
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448 return vdp_port_write(vdp_port, context, vdp_port < 0x10 ? value | value << 8 : ((vdp_port & 1) ? value : 0)); |
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Allow VDP/PSG writes from Z80
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diff
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|
449 } |
fa7ea48be9a9
Allow VDP/PSG writes from Z80
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450 |
592
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Get rest of emulator compiling again with Z80 core enabled
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diff
changeset
|
451 void * z80_vdp_port_write(uint32_t vdp_port, void * vcontext, uint8_t value) |
357
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diff
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452 { |
592
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diff
changeset
|
453 z80_context * context = vcontext; |
357
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diff
changeset
|
454 genesis_context * gen = context->system; |
660
e7cae6d9aaa6
Add the 3 cycle delay back in to Z80 bank area access
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parents:
659
diff
changeset
|
455 vdp_port &= 0xFF; |
358
9498cfa7f7c8
Make Z80 writes to VDP/PSG not potentially crash the emulator
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diff
changeset
|
456 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
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|
457 fatal_error("machine freeze due to write to Z80 address %X\n", 0x7F00 | vdp_port); |
358
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diff
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458 } |
9498cfa7f7c8
Make Z80 writes to VDP/PSG not potentially crash the emulator
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diff
changeset
|
459 if (vdp_port < 0x10) { |
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diff
changeset
|
460 //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
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|
461 vdp_run_context(gen->vdp, context->current_cycle); |
358
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diff
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462 if (vdp_port < 4) { |
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diff
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463 vdp_data_port_write(gen->vdp, value << 8 | value); |
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diff
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464 } else if (vdp_port < 8) { |
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diff
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465 vdp_control_port_write(gen->vdp, value << 8 | value); |
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357
diff
changeset
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466 } 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
|
467 fatal_error("Illegal write to HV Counter port %X\n", vdp_port); |
358
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parents:
357
diff
changeset
|
468 } |
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Make Z80 writes to VDP/PSG not potentially crash the emulator
Mike Pavone <pavone@retrodev.com>
parents:
357
diff
changeset
|
469 } 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
|
470 sync_sound(gen, context->current_cycle); |
358
9498cfa7f7c8
Make Z80 writes to VDP/PSG not potentially crash the emulator
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parents:
357
diff
changeset
|
471 psg_write(gen->psg, value); |
9498cfa7f7c8
Make Z80 writes to VDP/PSG not potentially crash the emulator
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parents:
357
diff
changeset
|
472 } 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
|
473 vdp_test_port_write(gen->vdp, value); |
358
9498cfa7f7c8
Make Z80 writes to VDP/PSG not potentially crash the emulator
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parents:
357
diff
changeset
|
474 } |
357
fa7ea48be9a9
Allow VDP/PSG writes from Z80
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parents:
356
diff
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|
475 return context; |
343
467bfa17004a
Mostly working runtime generation of memory map read/write functions
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parents:
342
diff
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|
476 } |
467bfa17004a
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parents:
342
diff
changeset
|
477 |
467bfa17004a
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diff
changeset
|
478 uint16_t vdp_port_read(uint32_t vdp_port, m68k_context * context) |
88
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diff
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|
479 { |
343
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changeset
|
480 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
|
481 fatal_error("machine freeze due to read from address %X\n", 0xC00000 | vdp_port); |
343
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diff
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|
482 } |
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diff
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|
483 vdp_port &= 0x1F; |
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parents:
342
diff
changeset
|
484 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
|
485 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
|
486 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
|
487 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
|
488 uint32_t before_cycle = v_context->cycles; |
88
c339559f1d4f
Forgot to add blastem main file earlier
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parents:
diff
changeset
|
489 if (vdp_port < 0x10) { |
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
490 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
|
491 value = vdp_data_port_read(v_context); |
88
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
492 } 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
|
493 value = vdp_control_port_read(v_context); |
88
c339559f1d4f
Forgot to add blastem main file earlier
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parents:
diff
changeset
|
494 } else { |
343
467bfa17004a
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parents:
342
diff
changeset
|
495 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
|
496 //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
|
497 } |
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
|
498 } 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
|
499 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
|
500 } 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
|
501 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
|
502 } |
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
|
503 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
|
504 //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); |
978
34b811ea1e7c
Disable refresh emulation with some ifdefs for now as it currently is not accurate enough to actually improve overall accuracy/compatibility and in fact makes things that work right on real hardware break
Michael Pavone <pavone@retrodev.com>
parents:
975
diff
changeset
|
505 context->current_cycle = v_context->cycles; |
34b811ea1e7c
Disable refresh emulation with some ifdefs for now as it currently is not accurate enough to actually improve overall accuracy/compatibility and in fact makes things that work right on real hardware break
Michael Pavone <pavone@retrodev.com>
parents:
975
diff
changeset
|
506 #ifdef REFRES_EMULATION |
34b811ea1e7c
Disable refresh emulation with some ifdefs for now as it currently is not accurate enough to actually improve overall accuracy/compatibility and in fact makes things that work right on real hardware break
Michael Pavone <pavone@retrodev.com>
parents:
975
diff
changeset
|
507 last_sync_cycle = context->current_cycle; |
34b811ea1e7c
Disable refresh emulation with some ifdefs for now as it currently is not accurate enough to actually improve overall accuracy/compatibility and in fact makes things that work right on real hardware break
Michael Pavone <pavone@retrodev.com>
parents:
975
diff
changeset
|
508 #endif |
680
4996369f1463
Some small synchronization improvements that do not seem to fix anything
Michael Pavone <pavone@retrodev.com>
parents:
679
diff
changeset
|
509 //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
|
510 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
|
511 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
|
512 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
|
513 gen->bus_busy = 0; |
88
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
514 } |
343
467bfa17004a
Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents:
342
diff
changeset
|
515 return value; |
467bfa17004a
Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents:
342
diff
changeset
|
516 } |
467bfa17004a
Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents:
342
diff
changeset
|
517 |
467bfa17004a
Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents:
342
diff
changeset
|
518 uint8_t vdp_port_read_b(uint32_t vdp_port, m68k_context * context) |
467bfa17004a
Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents:
342
diff
changeset
|
519 { |
467bfa17004a
Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents:
342
diff
changeset
|
520 uint16_t value = vdp_port_read(vdp_port, context); |
467bfa17004a
Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents:
342
diff
changeset
|
521 if (vdp_port & 1) { |
467bfa17004a
Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents:
342
diff
changeset
|
522 return value; |
467bfa17004a
Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents:
342
diff
changeset
|
523 } else { |
467bfa17004a
Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents:
342
diff
changeset
|
524 return value >> 8; |
467bfa17004a
Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents:
342
diff
changeset
|
525 } |
88
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
526 } |
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
527 |
592
4ff7bbb3943b
Get rest of emulator compiling again with Z80 core enabled
Michael Pavone <pavone@retrodev.com>
parents:
590
diff
changeset
|
528 uint8_t z80_vdp_port_read(uint32_t vdp_port, void * vcontext) |
4ff7bbb3943b
Get rest of emulator compiling again with Z80 core enabled
Michael Pavone <pavone@retrodev.com>
parents:
590
diff
changeset
|
529 { |
4ff7bbb3943b
Get rest of emulator compiling again with Z80 core enabled
Michael Pavone <pavone@retrodev.com>
parents:
590
diff
changeset
|
530 z80_context * context = vcontext; |
4ff7bbb3943b
Get rest of emulator compiling again with Z80 core enabled
Michael Pavone <pavone@retrodev.com>
parents:
590
diff
changeset
|
531 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
|
532 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
Michael Pavone <pavone@retrodev.com>
parents:
590
diff
changeset
|
533 } |
4ff7bbb3943b
Get rest of emulator compiling again with Z80 core enabled
Michael Pavone <pavone@retrodev.com>
parents:
590
diff
changeset
|
534 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
Michael Pavone <pavone@retrodev.com>
parents:
721
diff
changeset
|
535 //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
Michael Pavone <pavone@retrodev.com>
parents:
721
diff
changeset
|
536 //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
Michael Pavone <pavone@retrodev.com>
parents:
721
diff
changeset
|
537 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
Michael Pavone <pavone@retrodev.com>
parents:
721
diff
changeset
|
538 //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
|
539 //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
|
540 // 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
|
541 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
|
542 |
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
|
543 |
592
4ff7bbb3943b
Get rest of emulator compiling again with Z80 core enabled
Michael Pavone <pavone@retrodev.com>
parents:
590
diff
changeset
|
544 vdp_port &= 0x1F; |
4ff7bbb3943b
Get rest of emulator compiling again with Z80 core enabled
Michael Pavone <pavone@retrodev.com>
parents:
590
diff
changeset
|
545 uint16_t ret; |
4ff7bbb3943b
Get rest of emulator compiling again with Z80 core enabled
Michael Pavone <pavone@retrodev.com>
parents:
590
diff
changeset
|
546 if (vdp_port < 0x10) { |
4ff7bbb3943b
Get rest of emulator compiling again with Z80 core enabled
Michael Pavone <pavone@retrodev.com>
parents:
590
diff
changeset
|
547 //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
|
548 vdp_run_context(gen->vdp, context->current_cycle); |
592
4ff7bbb3943b
Get rest of emulator compiling again with Z80 core enabled
Michael Pavone <pavone@retrodev.com>
parents:
590
diff
changeset
|
549 if (vdp_port < 4) { |
4ff7bbb3943b
Get rest of emulator compiling again with Z80 core enabled
Michael Pavone <pavone@retrodev.com>
parents:
590
diff
changeset
|
550 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
|
551 } else if (vdp_port < 8) { |
4ff7bbb3943b
Get rest of emulator compiling again with Z80 core enabled
Michael Pavone <pavone@retrodev.com>
parents:
590
diff
changeset
|
552 ret = vdp_control_port_read(gen->vdp); |
4ff7bbb3943b
Get rest of emulator compiling again with Z80 core enabled
Michael Pavone <pavone@retrodev.com>
parents:
590
diff
changeset
|
553 } 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
|
554 fatal_error("Illegal write to HV Counter port %X\n", vdp_port); |
592
4ff7bbb3943b
Get rest of emulator compiling again with Z80 core enabled
Michael Pavone <pavone@retrodev.com>
parents:
590
diff
changeset
|
555 } |
4ff7bbb3943b
Get rest of emulator compiling again with Z80 core enabled
Michael Pavone <pavone@retrodev.com>
parents:
590
diff
changeset
|
556 } else { |
4ff7bbb3943b
Get rest of emulator compiling again with Z80 core enabled
Michael Pavone <pavone@retrodev.com>
parents:
590
diff
changeset
|
557 //TODO: Figure out the correct value today |
4ff7bbb3943b
Get rest of emulator compiling again with Z80 core enabled
Michael Pavone <pavone@retrodev.com>
parents:
590
diff
changeset
|
558 ret = 0xFFFF; |
4ff7bbb3943b
Get rest of emulator compiling again with Z80 core enabled
Michael Pavone <pavone@retrodev.com>
parents:
590
diff
changeset
|
559 } |
4ff7bbb3943b
Get rest of emulator compiling again with Z80 core enabled
Michael Pavone <pavone@retrodev.com>
parents:
590
diff
changeset
|
560 return vdp_port & 1 ? ret : ret >> 8; |
4ff7bbb3943b
Get rest of emulator compiling again with Z80 core enabled
Michael Pavone <pavone@retrodev.com>
parents:
590
diff
changeset
|
561 } |
4ff7bbb3943b
Get rest of emulator compiling again with Z80 core enabled
Michael Pavone <pavone@retrodev.com>
parents:
590
diff
changeset
|
562 |
279
6be6056735a9
Fix native address lookup in bannked memory area
Mike Pavone <pavone@retrodev.com>
parents:
276
diff
changeset
|
563 uint32_t zram_counter = 0; |
6be6056735a9
Fix native address lookup in bannked memory area
Mike Pavone <pavone@retrodev.com>
parents:
276
diff
changeset
|
564 |
88
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
565 m68k_context * io_write(uint32_t location, m68k_context * context, uint8_t value) |
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
566 { |
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
|
567 genesis_context * gen = context->system; |
153
42c031184e8a
Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents:
149
diff
changeset
|
568 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
|
569 //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
|
570 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
|
571 if (!z80_enabled || z80_get_busack(gen->z80, context->current_cycle)) { |
153
42c031184e8a
Implement access to Z80 RAM
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parents:
149
diff
changeset
|
572 location &= 0x7FFF; |
42c031184e8a
Implement access to Z80 RAM
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parents:
149
diff
changeset
|
573 if (location < 0x4000) { |
42c031184e8a
Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents:
149
diff
changeset
|
574 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
|
575 #ifndef NO_Z80 |
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
|
576 z80_handle_code_write(location & 0x1FFF, gen->z80); |
548
a3afee2271ce
Initial work on the x86-32 target
Michael Pavone <pavone@retrodev.com>
parents:
534
diff
changeset
|
577 #endif |
288
a8ee7934a1f8
Add a YM2612 stub implementation with just timers and status registers so that games that depend on it can run.
Mike Pavone <pavone@retrodev.com>
parents:
280
diff
changeset
|
578 } else if (location < 0x6000) { |
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
|
579 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.
Mike Pavone <pavone@retrodev.com>
parents:
280
diff
changeset
|
580 if (location & 1) { |
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
|
581 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.
Mike Pavone <pavone@retrodev.com>
parents:
280
diff
changeset
|
582 } 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.
Mike Pavone <pavone@retrodev.com>
parents:
280
diff
changeset
|
583 ym_address_write_part2(gen->ym, value); |
a8ee7934a1f8
Add a YM2612 stub implementation with just timers and status registers so that games that depend on it can run.
Mike Pavone <pavone@retrodev.com>
parents:
280
diff
changeset
|
584 } else { |
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
|
585 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.
Mike Pavone <pavone@retrodev.com>
parents:
280
diff
changeset
|
586 } |
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
|
587 } 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
|
588 gen->z80->bank_reg = (gen->z80->bank_reg >> 1 | value << 8) & 0x1FF; |
042c4ba4a838
Implement writes from 68K to Z80 bank register and make reads from port c control register return 0 again
Mike Pavone <pavone@retrodev.com>
parents:
404
diff
changeset
|
589 if (gen->z80->bank_reg < 0x80) { |
042c4ba4a838
Implement writes from 68K to Z80 bank register and make reads from port c control register return 0 again
Mike Pavone <pavone@retrodev.com>
parents:
404
diff
changeset
|
590 gen->z80->mem_pointers[1] = (gen->z80->bank_reg << 15) + ((char *)gen->z80->mem_pointers[2]); |
042c4ba4a838
Implement writes from 68K to Z80 bank register and make reads from port c control register return 0 again
Mike Pavone <pavone@retrodev.com>
parents:
404
diff
changeset
|
591 } else { |
042c4ba4a838
Implement writes from 68K to Z80 bank register and make reads from port c control register return 0 again
Mike Pavone <pavone@retrodev.com>
parents:
404
diff
changeset
|
592 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
|
593 } |
395
0b5f93358a93
Add debugger command for saving Z80 RAM to a file
Mike Pavone <pavone@retrodev.com>
parents:
392
diff
changeset
|
594 } 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
|
595 fatal_error("68K write to unhandled Z80 address %X\n", location); |
153
42c031184e8a
Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents:
149
diff
changeset
|
596 } |
88
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
597 } |
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
598 } else { |
153
42c031184e8a
Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents:
149
diff
changeset
|
599 location &= 0x1FFF; |
42c031184e8a
Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents:
149
diff
changeset
|
600 if (location < 0x100) { |
42c031184e8a
Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents:
149
diff
changeset
|
601 switch(location/2) |
42c031184e8a
Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents:
149
diff
changeset
|
602 { |
42c031184e8a
Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents:
149
diff
changeset
|
603 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
|
604 io_data_write(gen->ports, value, context->current_cycle); |
153
42c031184e8a
Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents:
149
diff
changeset
|
605 break; |
42c031184e8a
Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents:
149
diff
changeset
|
606 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
|
607 io_data_write(gen->ports+1, value, context->current_cycle); |
153
42c031184e8a
Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents:
149
diff
changeset
|
608 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
|
609 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
|
610 io_data_write(gen->ports+2, value, context->current_cycle); |
153
42c031184e8a
Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents:
149
diff
changeset
|
611 break; |
42c031184e8a
Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents:
149
diff
changeset
|
612 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
|
613 gen->ports[0].control = value; |
153
42c031184e8a
Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents:
149
diff
changeset
|
614 break; |
42c031184e8a
Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents:
149
diff
changeset
|
615 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
|
616 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
|
617 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
|
618 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
|
619 gen->ports[2].control = value; |
153
42c031184e8a
Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents:
149
diff
changeset
|
620 break; |
88
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
621 } |
153
42c031184e8a
Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents:
149
diff
changeset
|
622 } else { |
42c031184e8a
Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents:
149
diff
changeset
|
623 if (location == 0x1100) { |
42c031184e8a
Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents:
149
diff
changeset
|
624 if (value & 1) { |
271
969ee17471c5
Protect debug prints for busreq/reset regs with appropriate macros
Mike Pavone <pavone@retrodev.com>
parents:
268
diff
changeset
|
625 dputs("bus requesting Z80"); |
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
|
626 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:
667
diff
changeset
|
627 z80_assert_busreq(gen->z80, context->current_cycle); |
677
687c1dd3bcb9
Fake busack when Z80 is disabled
Michael Pavone <pavone@retrodev.com>
parents:
672
diff
changeset
|
628 } else { |
687c1dd3bcb9
Fake busack when Z80 is disabled
Michael Pavone <pavone@retrodev.com>
parents:
672
diff
changeset
|
629 gen->z80->busack = 1; |
153
42c031184e8a
Implement access to Z80 RAM
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parents:
149
diff
changeset
|
630 } |
42c031184e8a
Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents:
149
diff
changeset
|
631 } else { |
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
|
632 if (gen->z80->busreq) { |
271
969ee17471c5
Protect debug prints for busreq/reset regs with appropriate macros
Mike Pavone <pavone@retrodev.com>
parents:
268
diff
changeset
|
633 dputs("releasing z80 bus"); |
280 | 634 #ifdef DO_DEBUG_PRINT |
279
6be6056735a9
Fix native address lookup in bannked memory area
Mike Pavone <pavone@retrodev.com>
parents:
276
diff
changeset
|
635 char fname[20]; |
6be6056735a9
Fix native address lookup in bannked memory area
Mike Pavone <pavone@retrodev.com>
parents:
276
diff
changeset
|
636 sprintf(fname, "zram-%d", zram_counter++); |
6be6056735a9
Fix native address lookup in bannked memory area
Mike Pavone <pavone@retrodev.com>
parents:
276
diff
changeset
|
637 FILE * f = fopen(fname, "wb"); |
6be6056735a9
Fix native address lookup in bannked memory area
Mike Pavone <pavone@retrodev.com>
parents:
276
diff
changeset
|
638 fwrite(z80_ram, 1, sizeof(z80_ram), f); |
6be6056735a9
Fix native address lookup in bannked memory area
Mike Pavone <pavone@retrodev.com>
parents:
276
diff
changeset
|
639 fclose(f); |
280 | 640 #endif |
260
625f8e4d5fd2
Initial stab at integartiong Z80 core
Mike Pavone <pavone@retrodev.com>
parents:
215
diff
changeset
|
641 } |
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
|
642 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:
667
diff
changeset
|
643 z80_clear_busreq(gen->z80, context->current_cycle); |
677
687c1dd3bcb9
Fake busack when Z80 is disabled
Michael Pavone <pavone@retrodev.com>
parents:
672
diff
changeset
|
644 } else { |
687c1dd3bcb9
Fake busack when Z80 is disabled
Michael Pavone <pavone@retrodev.com>
parents:
672
diff
changeset
|
645 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
|
646 } |
88
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
647 } |
153
42c031184e8a
Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents:
149
diff
changeset
|
648 } 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
changeset
|
649 sync_z80(gen->z80, context->current_cycle); |
153
42c031184e8a
Implement access to Z80 RAM
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parents:
149
diff
changeset
|
650 if (value & 1) { |
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
|
651 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
|
652 z80_clear_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
Michael Pavone <pavone@retrodev.com>
parents:
667
diff
changeset
|
653 } 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
|
654 gen->z80->reset = 0; |
153
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Implement access to Z80 RAM
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149
diff
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|
655 } |
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
|
656 } 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
|
657 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
|
658 z80_assert_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>
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667
diff
changeset
|
659 } 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
|
660 gen->z80->reset = 1; |
260
625f8e4d5fd2
Initial stab at integartiong Z80 core
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diff
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|
661 } |
153
42c031184e8a
Implement access to Z80 RAM
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diff
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|
662 } |
88
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Forgot to add blastem main file earlier
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diff
changeset
|
663 } |
c339559f1d4f
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diff
changeset
|
664 } |
c339559f1d4f
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parents:
diff
changeset
|
665 } |
c339559f1d4f
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parents:
diff
changeset
|
666 return context; |
c339559f1d4f
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parents:
diff
changeset
|
667 } |
c339559f1d4f
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parents:
diff
changeset
|
668 |
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parents:
diff
changeset
|
669 m68k_context * io_write_w(uint32_t location, m68k_context * context, uint16_t value) |
c339559f1d4f
Forgot to add blastem main file earlier
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diff
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|
670 { |
404
88fa2ad53e64
Minor refactor of io_read functions to avoid duplication of logic between byte and word versions
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parents:
402
diff
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|
671 if (location < 0x10000 || (location & 0x1FFF) >= 0x100) { |
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Minor refactor of io_read functions to avoid duplication of logic between byte and word versions
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parents:
402
diff
changeset
|
672 return io_write(location, context, value >> 8); |
88
c339559f1d4f
Forgot to add blastem main file earlier
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parents:
diff
changeset
|
673 } 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
|
674 return io_write(location, context, value); |
88
c339559f1d4f
Forgot to add blastem main file earlier
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parents:
diff
changeset
|
675 } |
c339559f1d4f
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parents:
diff
changeset
|
676 } |
c339559f1d4f
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diff
changeset
|
677 |
130
0bdbffa9fe90
Make version register return correct value for USA
Mike Pavone <pavone@retrodev.com>
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115
diff
changeset
|
678 #define USA 0x80 |
0bdbffa9fe90
Make version register return correct value for USA
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115
diff
changeset
|
679 #define JAP 0x00 |
0bdbffa9fe90
Make version register return correct value for USA
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115
diff
changeset
|
680 #define EUR 0xC0 |
0bdbffa9fe90
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diff
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|
681 #define NO_DISK 0x20 |
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Make version register return correct value for USA
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diff
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|
682 uint8_t version_reg = NO_DISK | USA; |
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115
diff
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|
683 |
343
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|
684 uint8_t io_read(uint32_t location, m68k_context * context) |
88
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|
685 { |
343
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|
686 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.
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parents:
280
diff
changeset
|
687 genesis_context *gen = context->system; |
153
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Implement access to Z80 RAM
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parents:
149
diff
changeset
|
688 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
|
689 //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
|
690 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
|
691 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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149
diff
changeset
|
692 location &= 0x7FFF; |
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Implement access to Z80 RAM
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149
diff
changeset
|
693 if (location < 0x4000) { |
343
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342
diff
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|
694 value = z80_ram[location & 0x1FFF]; |
288
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Add a YM2612 stub implementation with just timers and status registers so that games that depend on it can run.
Mike Pavone <pavone@retrodev.com>
parents:
280
diff
changeset
|
695 } 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
|
696 sync_sound(gen, context->current_cycle); |
343
467bfa17004a
Mostly working runtime generation of memory map read/write functions
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parents:
342
diff
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|
697 value = ym_read_status(gen->ym); |
153
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Implement access to Z80 RAM
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parents:
149
diff
changeset
|
698 } else { |
343
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parents:
342
diff
changeset
|
699 value = 0xFF; |
467bfa17004a
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342
diff
changeset
|
700 } |
467bfa17004a
Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
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342
diff
changeset
|
701 } else { |
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parents:
342
diff
changeset
|
702 value = 0xFF; |
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parents:
342
diff
changeset
|
703 } |
467bfa17004a
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342
diff
changeset
|
704 } else { |
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342
diff
changeset
|
705 location &= 0x1FFF; |
467bfa17004a
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parents:
342
diff
changeset
|
706 if (location < 0x100) { |
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parents:
342
diff
changeset
|
707 switch(location/2) |
467bfa17004a
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parents:
342
diff
changeset
|
708 { |
467bfa17004a
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parents:
342
diff
changeset
|
709 case 0x0: |
467bfa17004a
Mostly working runtime generation of memory map read/write functions
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parents:
342
diff
changeset
|
710 //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
|
711 value = version_reg; |
467bfa17004a
Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents:
342
diff
changeset
|
712 break; |
467bfa17004a
Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents:
342
diff
changeset
|
713 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
|
714 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
|
715 break; |
467bfa17004a
Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents:
342
diff
changeset
|
716 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
|
717 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
|
718 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
|
719 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
|
720 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
|
721 break; |
467bfa17004a
Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents:
342
diff
changeset
|
722 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
|
723 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
|
724 break; |
467bfa17004a
Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents:
342
diff
changeset
|
725 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
|
726 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
|
727 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
|
728 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
|
729 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
|
730 break; |
343
467bfa17004a
Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents:
342
diff
changeset
|
731 default: |
467bfa17004a
Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents:
342
diff
changeset
|
732 value = 0xFF; |
153
42c031184e8a
Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents:
149
diff
changeset
|
733 } |
42c031184e8a
Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents:
149
diff
changeset
|
734 } else { |
343
467bfa17004a
Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents:
342
diff
changeset
|
735 if (location == 0x1100) { |
677
687c1dd3bcb9
Fake busack when Z80 is disabled
Michael Pavone <pavone@retrodev.com>
parents:
672
diff
changeset
|
736 value = z80_enabled ? !z80_get_busack(gen->z80, context->current_cycle) : !gen->z80->busack; |
981
902c53d9c16f
Half assed, prefetch based open bus value emulation. Gets BlastEm up to 119/122 in VDP FIFO Testing
Michael Pavone <pavone@retrodev.com>
parents:
978
diff
changeset
|
737 value |= (get_open_bus_value() >> 8) & 0xFE; |
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
|
738 dprintf("Byte read of BUSREQ returned %d @ %d (reset: %d)\n", value, context->current_cycle, gen->z80->reset); |
343
467bfa17004a
Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents:
342
diff
changeset
|
739 } 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
|
740 value = !gen->z80->reset; |
343
467bfa17004a
Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents:
342
diff
changeset
|
741 } else { |
467bfa17004a
Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents:
342
diff
changeset
|
742 value = 0xFF; |
467bfa17004a
Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents:
342
diff
changeset
|
743 printf("Byte read of unknown IO location: %X\n", location); |
467bfa17004a
Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents:
342
diff
changeset
|
744 } |
467bfa17004a
Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents:
342
diff
changeset
|
745 } |
467bfa17004a
Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents:
342
diff
changeset
|
746 } |
467bfa17004a
Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents:
342
diff
changeset
|
747 return value; |
467bfa17004a
Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents:
342
diff
changeset
|
748 } |
467bfa17004a
Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents:
342
diff
changeset
|
749 |
467bfa17004a
Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents:
342
diff
changeset
|
750 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
|
751 { |
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
|
752 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
|
753 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
|
754 value = value | (value << 8); |
88
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
755 } 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
|
756 value <<= 8; |
981
902c53d9c16f
Half assed, prefetch based open bus value emulation. Gets BlastEm up to 119/122 in VDP FIFO Testing
Michael Pavone <pavone@retrodev.com>
parents:
978
diff
changeset
|
757 value |= get_open_bus_value() & 0xFF; |
88
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
758 } |
343
467bfa17004a
Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents:
342
diff
changeset
|
759 return value; |
88
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
760 } |
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
761 |
592
4ff7bbb3943b
Get rest of emulator compiling again with Z80 core enabled
Michael Pavone <pavone@retrodev.com>
parents:
590
diff
changeset
|
762 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
|
763 { |
592
4ff7bbb3943b
Get rest of emulator compiling again with Z80 core enabled
Michael Pavone <pavone@retrodev.com>
parents:
590
diff
changeset
|
764 z80_context * context = vcontext; |
290
171f97e70d85
Implement writes from Z80 to YM-2612
Mike Pavone <pavone@retrodev.com>
parents:
289
diff
changeset
|
765 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
|
766 sync_sound(gen, context->current_cycle); |
290
171f97e70d85
Implement writes from Z80 to YM-2612
Mike Pavone <pavone@retrodev.com>
parents:
289
diff
changeset
|
767 if (location & 1) { |
171f97e70d85
Implement writes from Z80 to YM-2612
Mike Pavone <pavone@retrodev.com>
parents:
289
diff
changeset
|
768 ym_data_write(gen->ym, value); |
171f97e70d85
Implement writes from Z80 to YM-2612
Mike Pavone <pavone@retrodev.com>
parents:
289
diff
changeset
|
769 } else if (location & 2) { |
171f97e70d85
Implement writes from Z80 to YM-2612
Mike Pavone <pavone@retrodev.com>
parents:
289
diff
changeset
|
770 ym_address_write_part2(gen->ym, value); |
171f97e70d85
Implement writes from Z80 to YM-2612
Mike Pavone <pavone@retrodev.com>
parents:
289
diff
changeset
|
771 } else { |
171f97e70d85
Implement writes from Z80 to YM-2612
Mike Pavone <pavone@retrodev.com>
parents:
289
diff
changeset
|
772 ym_address_write_part1(gen->ym, value); |
171f97e70d85
Implement writes from Z80 to YM-2612
Mike Pavone <pavone@retrodev.com>
parents:
289
diff
changeset
|
773 } |
171f97e70d85
Implement writes from Z80 to YM-2612
Mike Pavone <pavone@retrodev.com>
parents:
289
diff
changeset
|
774 return context; |
171f97e70d85
Implement writes from Z80 to YM-2612
Mike Pavone <pavone@retrodev.com>
parents:
289
diff
changeset
|
775 } |
171f97e70d85
Implement writes from Z80 to YM-2612
Mike Pavone <pavone@retrodev.com>
parents:
289
diff
changeset
|
776 |
592
4ff7bbb3943b
Get rest of emulator compiling again with Z80 core enabled
Michael Pavone <pavone@retrodev.com>
parents:
590
diff
changeset
|
777 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
|
778 { |
592
4ff7bbb3943b
Get rest of emulator compiling again with Z80 core enabled
Michael Pavone <pavone@retrodev.com>
parents:
590
diff
changeset
|
779 z80_context * context = vcontext; |
290
171f97e70d85
Implement writes from Z80 to YM-2612
Mike Pavone <pavone@retrodev.com>
parents:
289
diff
changeset
|
780 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
|
781 sync_sound(gen, context->current_cycle); |
290
171f97e70d85
Implement writes from Z80 to YM-2612
Mike Pavone <pavone@retrodev.com>
parents:
289
diff
changeset
|
782 return ym_read_status(gen->ym); |
171f97e70d85
Implement writes from Z80 to YM-2612
Mike Pavone <pavone@retrodev.com>
parents:
289
diff
changeset
|
783 } |
171f97e70d85
Implement writes from Z80 to YM-2612
Mike Pavone <pavone@retrodev.com>
parents:
289
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 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
|
786 { |
4ff7bbb3943b
Get rest of emulator compiling again with Z80 core enabled
Michael Pavone <pavone@retrodev.com>
parents:
590
diff
changeset
|
787 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
|
788 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
|
789 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
|
790 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
|
791 } |
660
e7cae6d9aaa6
Add the 3 cycle delay back in to Z80 bank area access
Michael Pavone <pavone@retrodev.com>
parents:
659
diff
changeset
|
792 //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
|
793 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
|
794 //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
|
795 //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
|
796 // 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
|
797 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
|
798 |
660
e7cae6d9aaa6
Add the 3 cycle delay back in to Z80 bank area access
Michael Pavone <pavone@retrodev.com>
parents:
659
diff
changeset
|
799 location &= 0x7FFF; |
e7cae6d9aaa6
Add the 3 cycle delay back in to Z80 bank area access
Michael Pavone <pavone@retrodev.com>
parents:
659
diff
changeset
|
800 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
|
801 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
|
802 } |
604
39d7d463ed5b
Get Z80 banked access sort of working again
Michael Pavone <pavone@retrodev.com>
parents:
602
diff
changeset
|
803 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
|
804 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
|
805 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
|
806 } else { |
660
e7cae6d9aaa6
Add the 3 cycle delay back in to Z80 bank area access
Michael Pavone <pavone@retrodev.com>
parents:
659
diff
changeset
|
807 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
|
808 } |
592
4ff7bbb3943b
Get rest of emulator compiling again with Z80 core enabled
Michael Pavone <pavone@retrodev.com>
parents:
590
diff
changeset
|
809 return 0; |
4ff7bbb3943b
Get rest of emulator compiling again with Z80 core enabled
Michael Pavone <pavone@retrodev.com>
parents:
590
diff
changeset
|
810 } |
4ff7bbb3943b
Get rest of emulator compiling again with Z80 core enabled
Michael Pavone <pavone@retrodev.com>
parents:
590
diff
changeset
|
811 |
4ff7bbb3943b
Get rest of emulator compiling again with Z80 core enabled
Michael Pavone <pavone@retrodev.com>
parents:
590
diff
changeset
|
812 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
|
813 { |
592
4ff7bbb3943b
Get rest of emulator compiling again with Z80 core enabled
Michael Pavone <pavone@retrodev.com>
parents:
590
diff
changeset
|
814 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
|
815 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
|
816 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
|
817 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
|
818 } |
660
e7cae6d9aaa6
Add the 3 cycle delay back in to Z80 bank area access
Michael Pavone <pavone@retrodev.com>
parents:
659
diff
changeset
|
819 //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
|
820 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
|
821 //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
|
822 //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
|
823 // 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
|
824 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
|
825 |
660
e7cae6d9aaa6
Add the 3 cycle delay back in to Z80 bank area access
Michael Pavone <pavone@retrodev.com>
parents:
659
diff
changeset
|
826 location &= 0x7FFF; |
604
39d7d463ed5b
Get Z80 banked access sort of working again
Michael Pavone <pavone@retrodev.com>
parents:
602
diff
changeset
|
827 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
|
828 if (address >= 0xE00000) { |
39d7d463ed5b
Get Z80 banked access sort of working again
Michael Pavone <pavone@retrodev.com>
parents:
602
diff
changeset
|
829 address &= 0xFFFF; |
39d7d463ed5b
Get Z80 banked access sort of working again
Michael Pavone <pavone@retrodev.com>
parents:
602
diff
changeset
|
830 ((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
|
831 } else if (address >= 0xC00000) { |
649db9397fa1
Add support for Z80 access to VDP via bank area
Michael Pavone <pavone@retrodev.com>
parents:
606
diff
changeset
|
832 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
|
833 } else { |
39d7d463ed5b
Get Z80 banked access sort of working again
Michael Pavone <pavone@retrodev.com>
parents:
602
diff
changeset
|
834 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
|
835 } |
39d7d463ed5b
Get Z80 banked access sort of working again
Michael Pavone <pavone@retrodev.com>
parents:
602
diff
changeset
|
836 return context; |
39d7d463ed5b
Get Z80 banked access sort of working again
Michael Pavone <pavone@retrodev.com>
parents:
602
diff
changeset
|
837 } |
39d7d463ed5b
Get Z80 banked access sort of working again
Michael Pavone <pavone@retrodev.com>
parents:
602
diff
changeset
|
838 |
39d7d463ed5b
Get Z80 banked access sort of working again
Michael Pavone <pavone@retrodev.com>
parents:
602
diff
changeset
|
839 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
|
840 { |
39d7d463ed5b
Get Z80 banked access sort of working again
Michael Pavone <pavone@retrodev.com>
parents:
602
diff
changeset
|
841 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
|
842 |
604
39d7d463ed5b
Get Z80 banked access sort of working again
Michael Pavone <pavone@retrodev.com>
parents:
602
diff
changeset
|
843 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
|
844 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
|
845 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
|
846 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
|
847 } else { |
39d7d463ed5b
Get Z80 banked access sort of working again
Michael Pavone <pavone@retrodev.com>
parents:
602
diff
changeset
|
848 context->mem_pointers[1] = NULL; |
39d7d463ed5b
Get Z80 banked access sort of working again
Michael Pavone <pavone@retrodev.com>
parents:
602
diff
changeset
|
849 } |
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
|
850 |
592
4ff7bbb3943b
Get rest of emulator compiling again with Z80 core enabled
Michael Pavone <pavone@retrodev.com>
parents:
590
diff
changeset
|
851 return context; |
290
171f97e70d85
Implement writes from Z80 to YM-2612
Mike Pavone <pavone@retrodev.com>
parents:
289
diff
changeset
|
852 } |
171f97e70d85
Implement writes from Z80 to YM-2612
Mike Pavone <pavone@retrodev.com>
parents:
289
diff
changeset
|
853 |
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
|
854 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
|
855 { |
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
|
856 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
|
857 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
|
858 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
|
859 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
|
860 } |
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
|
861 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
|
862 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
|
863 } |
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
|
864 |
767
ea525f600b1d
SRAM detection from ROM header is no working correctly again
Michael Pavone <pavone@retrodev.com>
parents:
766
diff
changeset
|
865 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
|
866 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
|
867 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
|
868 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
|
869 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
|
870 { |
767
ea525f600b1d
SRAM detection from ROM header is no working correctly again
Michael Pavone <pavone@retrodev.com>
parents:
766
diff
changeset
|
871 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
|
872 if (!f) { |
767
ea525f600b1d
SRAM detection from ROM header is no working correctly again
Michael Pavone <pavone@retrodev.com>
parents:
766
diff
changeset
|
873 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
|
874 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
|
875 } |
767
ea525f600b1d
SRAM detection from ROM header is no working correctly again
Michael Pavone <pavone@retrodev.com>
parents:
766
diff
changeset
|
876 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
|
877 fclose(f); |
767
ea525f600b1d
SRAM detection from ROM header is no working correctly again
Michael Pavone <pavone@retrodev.com>
parents:
766
diff
changeset
|
878 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
|
879 } |
2f264d2a60c2
Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents:
346
diff
changeset
|
880 |
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
|
881 #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
|
882 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
|
883 { 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
|
884 { 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
|
885 { 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
|
886 { 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
|
887 { 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
|
888 }; |
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
|
889 #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
|
890 |
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
|
891 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
|
892 { |
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 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
|
894 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
|
895 |
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
|
896 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
|
897 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
|
898 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
|
899 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
|
900 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
|
901 |
1002
8d032a368dd5
Made low pass filter frequency configurable
Michael Pavone <pavone@retrodev.com>
parents:
997
diff
changeset
|
902 char * lowpass_cutoff_str = tern_find_path(config, "audio\0lowpass_cutoff\0").ptrval; |
8d032a368dd5
Made low pass filter frequency configurable
Michael Pavone <pavone@retrodev.com>
parents:
997
diff
changeset
|
903 uint32_t lowpass_cutoff = lowpass_cutoff_str ? atoi(lowpass_cutoff_str) : DEFAULT_LOWPASS_CUTOFF; |
8d032a368dd5
Made low pass filter frequency configurable
Michael Pavone <pavone@retrodev.com>
parents:
997
diff
changeset
|
904 |
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
|
905 gen->ym = malloc(sizeof(ym2612_context)); |
1002
8d032a368dd5
Made low pass filter frequency configurable
Michael Pavone <pavone@retrodev.com>
parents:
997
diff
changeset
|
906 ym_init(gen->ym, render_sample_rate(), gen->master_clock, MCLKS_PER_YM, render_audio_buffer(), ym_opts, lowpass_cutoff); |
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
|
907 |
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
|
908 gen->psg = malloc(sizeof(psg_context)); |
1002
8d032a368dd5
Made low pass filter frequency configurable
Michael Pavone <pavone@retrodev.com>
parents:
997
diff
changeset
|
909 psg_init(gen->psg, render_sample_rate(), gen->master_clock, MCLKS_PER_PSG, render_audio_buffer(), lowpass_cutoff); |
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
|
910 |
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
|
911 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
|
912 #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
|
913 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
|
914 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
|
915 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
|
916 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
|
917 #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
|
918 |
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
|
919 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
|
920 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
|
921 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
|
922 |
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
|
923 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
|
924 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
|
925 gen->zram = z80_ram; |
971
e28f365605da
Move mouse mode and capture state to emulation context so it persists properly when switching between the menu and the game
Michael Pavone <pavone@retrodev.com>
parents:
961
diff
changeset
|
926 setup_io_devices(config, rom, gen); |
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
|
927 |
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
|
928 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
|
929 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
|
930 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
|
931 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
|
932 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
|
933 gen->save_storage = rom->save_buffer; |
769
4638b88bc72d
Initial work on I2C EEPROM implementation
Michael Pavone <pavone@retrodev.com>
parents:
767
diff
changeset
|
934 gen->eeprom_map = rom->eeprom_map; |
4638b88bc72d
Initial work on I2C EEPROM implementation
Michael Pavone <pavone@retrodev.com>
parents:
767
diff
changeset
|
935 gen->num_eeprom = rom->num_eeprom; |
4638b88bc72d
Initial work on I2C EEPROM implementation
Michael Pavone <pavone@retrodev.com>
parents:
767
diff
changeset
|
936 if (gen->save_type == SAVE_I2C) { |
770 | 937 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
|
938 } |
767
ea525f600b1d
SRAM detection from ROM header is no working correctly again
Michael Pavone <pavone@retrodev.com>
parents:
766
diff
changeset
|
939 } else { |
ea525f600b1d
SRAM detection from ROM header is no working correctly again
Michael Pavone <pavone@retrodev.com>
parents:
766
diff
changeset
|
940 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
|
941 } |
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
|
942 |
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
|
943 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
|
944 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
|
945 //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
|
946 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
|
947 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
|
948 gen->m68k->system = gen; |
488
32f053ad9b02
Basic OpenGL rendering is working
Mike Pavone <pavone@retrodev.com>
parents:
487
diff
changeset
|
949 |
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
|
950 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
|
951 { |
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
|
952 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
|
953 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
|
954 } |
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
|
955 } |
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
|
956 |
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
|
957 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
|
958 } |
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
|
959 |
884
252dfd29831d
Selecting a second game from the menu now works
Michael Pavone <pavone@retrodev.com>
parents:
883
diff
changeset
|
960 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
|
961 { |
252dfd29831d
Selecting a second game from the menu now works
Michael Pavone <pavone@retrodev.com>
parents:
883
diff
changeset
|
962 vdp_free(gen->vdp); |
252dfd29831d
Selecting a second game from the menu now works
Michael Pavone <pavone@retrodev.com>
parents:
883
diff
changeset
|
963 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
|
964 free(gen->m68k); |
252dfd29831d
Selecting a second game from the menu now works
Michael Pavone <pavone@retrodev.com>
parents:
883
diff
changeset
|
965 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
|
966 free(gen->z80); |
252dfd29831d
Selecting a second game from the menu now works
Michael Pavone <pavone@retrodev.com>
parents:
883
diff
changeset
|
967 ym_free(gen->ym); |
252dfd29831d
Selecting a second game from the menu now works
Michael Pavone <pavone@retrodev.com>
parents:
883
diff
changeset
|
968 psg_free(gen->psg); |
252dfd29831d
Selecting a second game from the menu now works
Michael Pavone <pavone@retrodev.com>
parents:
883
diff
changeset
|
969 free(gen->save_storage); |
956
f5550cdffe49
Saving the save directory in the rom_info struct didn't make sense. It should be in the console context.
Michael Pavone <pavone@retrodev.com>
parents:
955
diff
changeset
|
970 free(gen->save_dir); |
884
252dfd29831d
Selecting a second game from the menu now works
Michael Pavone <pavone@retrodev.com>
parents:
883
diff
changeset
|
971 } |
252dfd29831d
Selecting a second game from the menu now works
Michael Pavone <pavone@retrodev.com>
parents:
883
diff
changeset
|
972 |
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
|
973 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
|
974 { |
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
|
975 |
424
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
976 if (statefile) { |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
977 uint32_t pc = load_gst(gen, statefile); |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
978 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
|
979 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
|
980 } |
451
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
447
diff
changeset
|
981 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
|
982 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
|
983 insert_breakpoint(gen->m68k, pc, debugger); |
424
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
984 } |
451
b7c3b2d22858
Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents:
447
diff
changeset
|
985 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
|
986 start_68k_context(gen->m68k, pc); |
424
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
987 } 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
|
988 if (debugger) { |
752
296ddfcf0d43
Minor cleanup in init_run_cpu
Michael Pavone <pavone@retrodev.com>
parents:
736
diff
changeset
|
989 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
|
990 insert_breakpoint(gen->m68k, address, debugger); |
424
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
991 } |
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
|
992 m68k_reset(gen->m68k); |
211 | 993 } |
994 } | |
995 | |
764
bb60259e8edf
Initial work on ROM database
Michael Pavone <pavone@retrodev.com>
parents:
753
diff
changeset
|
996 char *title; |
340
58a085cfc6bd
Set window title based on ROM header name
Mike Pavone <pavone@retrodev.com>
parents:
338
diff
changeset
|
997 |
764
bb60259e8edf
Initial work on ROM database
Michael Pavone <pavone@retrodev.com>
parents:
753
diff
changeset
|
998 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
|
999 { |
764
bb60259e8edf
Initial work on ROM database
Michael Pavone <pavone@retrodev.com>
parents:
753
diff
changeset
|
1000 if (title) { |
bb60259e8edf
Initial work on ROM database
Michael Pavone <pavone@retrodev.com>
parents:
753
diff
changeset
|
1001 free(title); |
bb60259e8edf
Initial work on ROM database
Michael Pavone <pavone@retrodev.com>
parents:
753
diff
changeset
|
1002 title = NULL; |
340
58a085cfc6bd
Set window title based on ROM header name
Mike Pavone <pavone@retrodev.com>
parents:
338
diff
changeset
|
1003 } |
764
bb60259e8edf
Initial work on ROM database
Michael Pavone <pavone@retrodev.com>
parents:
753
diff
changeset
|
1004 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
|
1005 render_update_caption(title); |
340
58a085cfc6bd
Set window title based on ROM header name
Mike Pavone <pavone@retrodev.com>
parents:
338
diff
changeset
|
1006 } |
58a085cfc6bd
Set window title based on ROM header name
Mike Pavone <pavone@retrodev.com>
parents:
338
diff
changeset
|
1007 |
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
|
1008 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
|
1009 { |
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
|
1010 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
|
1011 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
|
1012 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
|
1013 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
|
1014 } 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
|
1015 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
|
1016 } |
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
|
1017 } |
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
|
1018 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
|
1019 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
|
1020 } 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
|
1021 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
|
1022 } 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
|
1023 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
|
1024 } |
341
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1025 } |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1026 |
956
f5550cdffe49
Saving the save directory in the rom_info struct didn't make sense. It should be in the console context.
Michael Pavone <pavone@retrodev.com>
parents:
955
diff
changeset
|
1027 void setup_saves(char *fname, rom_info *info, genesis_context *context) |
955
229c23b3ab73
Switch to storing SRAM/EEPROM and save states in a per-game directory rather than next to the ROM (for SRAM/EEPROM) or in the current working directory (for save states)
Michael Pavone <pavone@retrodev.com>
parents:
953
diff
changeset
|
1028 { |
229c23b3ab73
Switch to storing SRAM/EEPROM and save states in a per-game directory rather than next to the ROM (for SRAM/EEPROM) or in the current working directory (for save states)
Michael Pavone <pavone@retrodev.com>
parents:
953
diff
changeset
|
1029 char * barename = basename_no_extension(fname); |
229c23b3ab73
Switch to storing SRAM/EEPROM and save states in a per-game directory rather than next to the ROM (for SRAM/EEPROM) or in the current working directory (for save states)
Michael Pavone <pavone@retrodev.com>
parents:
953
diff
changeset
|
1030 char const * parts[3] = {get_save_dir(), "/", barename}; |
229c23b3ab73
Switch to storing SRAM/EEPROM and save states in a per-game directory rather than next to the ROM (for SRAM/EEPROM) or in the current working directory (for save states)
Michael Pavone <pavone@retrodev.com>
parents:
953
diff
changeset
|
1031 char *save_dir = alloc_concat_m(3, parts); |
229c23b3ab73
Switch to storing SRAM/EEPROM and save states in a per-game directory rather than next to the ROM (for SRAM/EEPROM) or in the current working directory (for save states)
Michael Pavone <pavone@retrodev.com>
parents:
953
diff
changeset
|
1032 if (!ensure_dir_exists(save_dir)) { |
229c23b3ab73
Switch to storing SRAM/EEPROM and save states in a per-game directory rather than next to the ROM (for SRAM/EEPROM) or in the current working directory (for save states)
Michael Pavone <pavone@retrodev.com>
parents:
953
diff
changeset
|
1033 warning("Failed to create save directory %s\n", save_dir); |
229c23b3ab73
Switch to storing SRAM/EEPROM and save states in a per-game directory rather than next to the ROM (for SRAM/EEPROM) or in the current working directory (for save states)
Michael Pavone <pavone@retrodev.com>
parents:
953
diff
changeset
|
1034 } |
229c23b3ab73
Switch to storing SRAM/EEPROM and save states in a per-game directory rather than next to the ROM (for SRAM/EEPROM) or in the current working directory (for save states)
Michael Pavone <pavone@retrodev.com>
parents:
953
diff
changeset
|
1035 parts[0] = save_dir; |
229c23b3ab73
Switch to storing SRAM/EEPROM and save states in a per-game directory rather than next to the ROM (for SRAM/EEPROM) or in the current working directory (for save states)
Michael Pavone <pavone@retrodev.com>
parents:
953
diff
changeset
|
1036 parts[2] = info->save_type == SAVE_I2C ? "save.eeprom" : "save.sram"; |
229c23b3ab73
Switch to storing SRAM/EEPROM and save states in a per-game directory rather than next to the ROM (for SRAM/EEPROM) or in the current working directory (for save states)
Michael Pavone <pavone@retrodev.com>
parents:
953
diff
changeset
|
1037 free(save_filename); |
229c23b3ab73
Switch to storing SRAM/EEPROM and save states in a per-game directory rather than next to the ROM (for SRAM/EEPROM) or in the current working directory (for save states)
Michael Pavone <pavone@retrodev.com>
parents:
953
diff
changeset
|
1038 save_filename = alloc_concat_m(3, parts); |
229c23b3ab73
Switch to storing SRAM/EEPROM and save states in a per-game directory rather than next to the ROM (for SRAM/EEPROM) or in the current working directory (for save states)
Michael Pavone <pavone@retrodev.com>
parents:
953
diff
changeset
|
1039 parts[2] = "quicksave.gst"; |
229c23b3ab73
Switch to storing SRAM/EEPROM and save states in a per-game directory rather than next to the ROM (for SRAM/EEPROM) or in the current working directory (for save states)
Michael Pavone <pavone@retrodev.com>
parents:
953
diff
changeset
|
1040 free(save_state_path); |
229c23b3ab73
Switch to storing SRAM/EEPROM and save states in a per-game directory rather than next to the ROM (for SRAM/EEPROM) or in the current working directory (for save states)
Michael Pavone <pavone@retrodev.com>
parents:
953
diff
changeset
|
1041 save_state_path = alloc_concat_m(3, parts); |
956
f5550cdffe49
Saving the save directory in the rom_info struct didn't make sense. It should be in the console context.
Michael Pavone <pavone@retrodev.com>
parents:
955
diff
changeset
|
1042 context->save_dir = save_dir; |
955
229c23b3ab73
Switch to storing SRAM/EEPROM and save states in a per-game directory rather than next to the ROM (for SRAM/EEPROM) or in the current working directory (for save states)
Michael Pavone <pavone@retrodev.com>
parents:
953
diff
changeset
|
1043 free(barename); |
956
f5550cdffe49
Saving the save directory in the rom_info struct didn't make sense. It should be in the console context.
Michael Pavone <pavone@retrodev.com>
parents:
955
diff
changeset
|
1044 if (info->save_type != SAVE_NONE) { |
f5550cdffe49
Saving the save directory in the rom_info struct didn't make sense. It should be in the console context.
Michael Pavone <pavone@retrodev.com>
parents:
955
diff
changeset
|
1045 FILE * f = fopen(save_filename, "rb"); |
f5550cdffe49
Saving the save directory in the rom_info struct didn't make sense. It should be in the console context.
Michael Pavone <pavone@retrodev.com>
parents:
955
diff
changeset
|
1046 if (f) { |
f5550cdffe49
Saving the save directory in the rom_info struct didn't make sense. It should be in the console context.
Michael Pavone <pavone@retrodev.com>
parents:
955
diff
changeset
|
1047 uint32_t read = fread(context->save_storage, 1, info->save_size, f); |
f5550cdffe49
Saving the save directory in the rom_info struct didn't make sense. It should be in the console context.
Michael Pavone <pavone@retrodev.com>
parents:
955
diff
changeset
|
1048 fclose(f); |
f5550cdffe49
Saving the save directory in the rom_info struct didn't make sense. It should be in the console context.
Michael Pavone <pavone@retrodev.com>
parents:
955
diff
changeset
|
1049 if (read > 0) { |
f5550cdffe49
Saving the save directory in the rom_info struct didn't make sense. It should be in the console context.
Michael Pavone <pavone@retrodev.com>
parents:
955
diff
changeset
|
1050 printf("Loaded %s from %s\n", info->save_type == SAVE_I2C ? "EEPROM" : "SRAM", save_filename); |
f5550cdffe49
Saving the save directory in the rom_info struct didn't make sense. It should be in the console context.
Michael Pavone <pavone@retrodev.com>
parents:
955
diff
changeset
|
1051 } |
f5550cdffe49
Saving the save directory in the rom_info struct didn't make sense. It should be in the console context.
Michael Pavone <pavone@retrodev.com>
parents:
955
diff
changeset
|
1052 } |
f5550cdffe49
Saving the save directory in the rom_info struct didn't make sense. It should be in the console context.
Michael Pavone <pavone@retrodev.com>
parents:
955
diff
changeset
|
1053 atexit(persist_save); |
f5550cdffe49
Saving the save directory in the rom_info struct didn't make sense. It should be in the console context.
Michael Pavone <pavone@retrodev.com>
parents:
955
diff
changeset
|
1054 } |
955
229c23b3ab73
Switch to storing SRAM/EEPROM and save states in a per-game directory rather than next to the ROM (for SRAM/EEPROM) or in the current working directory (for save states)
Michael Pavone <pavone@retrodev.com>
parents:
953
diff
changeset
|
1055 } |
229c23b3ab73
Switch to storing SRAM/EEPROM and save states in a per-game directory rather than next to the ROM (for SRAM/EEPROM) or in the current working directory (for save states)
Michael Pavone <pavone@retrodev.com>
parents:
953
diff
changeset
|
1056 |
88
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1057 int main(int argc, char ** argv) |
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1058 { |
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
|
1059 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
|
1060 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
|
1061 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
|
1062 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
|
1063 int debug = 0; |
407
c3abc4ada43d
Add support for logging YM2612 channels to WAVE files
Mike Pavone <pavone@retrodev.com>
parents:
405
diff
changeset
|
1064 int ym_log = 0; |
463
a1d298119153
Added -h help text option
Mike Pavone <pavone@retrodev.com>
parents:
458
diff
changeset
|
1065 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
|
1066 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
|
1067 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
|
1068 FILE *address_log = NULL; |
425
8b3ae850d1c4
Forgot to null initialize the statfile pointer
Mike Pavone <pavone@retrodev.com>
parents:
424
diff
changeset
|
1069 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
|
1070 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
|
1071 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
|
1072 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
|
1073 uint8_t debug_target = 0; |
463
a1d298119153
Added -h help text option
Mike Pavone <pavone@retrodev.com>
parents:
458
diff
changeset
|
1074 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
|
1075 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
|
1076 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
|
1077 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
|
1078 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
|
1079 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
|
1080 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
|
1081 } |
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
|
1082 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
|
1083 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
|
1084 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
|
1085 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
|
1086 debuggerfun = (uint8_t *)debugger; |
885
e3f5ec336432
Allow menu ROM to be debugged
Michael Pavone <pavone@retrodev.com>
parents:
884
diff
changeset
|
1087 //allow debugging the menu |
e3f5ec336432
Allow menu ROM to be debugged
Michael Pavone <pavone@retrodev.com>
parents:
884
diff
changeset
|
1088 if (argv[i][2] == 'm') { |
e3f5ec336432
Allow menu ROM to be debugged
Michael Pavone <pavone@retrodev.com>
parents:
884
diff
changeset
|
1089 debug_target = 1; |
e3f5ec336432
Allow menu ROM to be debugged
Michael Pavone <pavone@retrodev.com>
parents:
884
diff
changeset
|
1090 } |
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
|
1091 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
|
1092 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
|
1093 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
|
1094 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
|
1095 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
|
1096 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
|
1097 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
|
1098 break; |
488
32f053ad9b02
Basic OpenGL rendering is working
Mike Pavone <pavone@retrodev.com>
parents:
487
diff
changeset
|
1099 case 'g': |
501
e1355aa80f4d
Use OpenGL by default. Add OpenGL switch to help text
Mike Pavone <pavone@retrodev.com>
parents:
496
diff
changeset
|
1100 use_gl = 0; |
488
32f053ad9b02
Basic OpenGL rendering is working
Mike Pavone <pavone@retrodev.com>
parents:
487
diff
changeset
|
1101 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
|
1102 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
|
1103 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
|
1104 break; |
464 | 1105 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
|
1106 info_message("blastem %s\n", BLASTEM_VERSION); |
464 | 1107 return 0; |
1108 break; | |
265
c6d12878ea93
Add -n flag for disabling the Z80 core
Mike Pavone <pavone@retrodev.com>
parents:
264
diff
changeset
|
1109 case 'n': |
c6d12878ea93
Add -n flag for disabling the Z80 core
Mike Pavone <pavone@retrodev.com>
parents:
264
diff
changeset
|
1110 z80_enabled = 0; |
c6d12878ea93
Add -n flag for disabling the Z80 core
Mike Pavone <pavone@retrodev.com>
parents:
264
diff
changeset
|
1111 break; |
341
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1112 case 'r': |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1113 i++; |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1114 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
|
1115 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
|
1116 } |
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
|
1117 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
|
1118 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
|
1119 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
|
1120 } |
6ad8e36de685
Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents:
340
diff
changeset
|
1121 break; |
424
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1122 case 's': |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1123 i++; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1124 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
|
1125 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
|
1126 } |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1127 statefile = argv[i]; |
7e8e179116af
Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents:
422
diff
changeset
|
1128 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
|
1129 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
|
1130 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
|
1131 break; |
407
c3abc4ada43d
Add support for logging YM2612 channels to WAVE files
Mike Pavone <pavone@retrodev.com>
parents:
405
diff
changeset
|
1132 case 'y': |
c3abc4ada43d
Add support for logging YM2612 channels to WAVE files
Mike Pavone <pavone@retrodev.com>
parents:
405
diff
changeset
|
1133 ym_log = 1; |
c3abc4ada43d
Add support for logging YM2612 channels to WAVE files
Mike Pavone <pavone@retrodev.com>
parents:
405
diff
changeset
|
1134 break; |
463
a1d298119153
Added -h help text option
Mike Pavone <pavone@retrodev.com>
parents:
458
diff
changeset
|
1135 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
|
1136 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
|
1137 "Usage: blastem [OPTIONS] ROMFILE [WIDTH] [HEIGHT]\n" |
463
a1d298119153
Added -h help text option
Mike Pavone <pavone@retrodev.com>
parents:
458
diff
changeset
|
1138 "Options:\n" |
a1d298119153
Added -h help text option
Mike Pavone <pavone@retrodev.com>
parents:
458
diff
changeset
|
1139 " -h Print this help text\n" |
a1d298119153
Added -h help text option
Mike Pavone <pavone@retrodev.com>
parents:
458
diff
changeset
|
1140 " -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
|
1141 " -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
|
1142 " -g Disable OpenGL rendering\n" |
463
a1d298119153
Added -h help text option
Mike Pavone <pavone@retrodev.com>
parents:
458
diff
changeset
|
1143 " -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
|
1144 " -d Enter debugger on startup\n" |
a1d298119153
Added -h help text option
Mike Pavone <pavone@retrodev.com>
parents:
458
diff
changeset
|
1145 " -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
|
1146 " -v Display version number and exit\n" |
463
a1d298119153
Added -h help text option
Mike Pavone <pavone@retrodev.com>
parents:
458
diff
changeset
|
1147 " -l Log 68K code addresses (useful for assemblers)\n" |
a1d298119153
Added -h help text option
Mike Pavone <pavone@retrodev.com>
parents:
458
diff
changeset
|
1148 " -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
|
1149 ); |
a1d298119153
Added -h help text option
Mike Pavone <pavone@retrodev.com>
parents:
458
diff
changeset
|
1150 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
|
1151 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
|
1152 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
|
1153 } |
463
a1d298119153
Added -h help text option
Mike Pavone <pavone@retrodev.com>
parents:
458
diff
changeset
|
1154 } else if (!loaded) { |
767
ea525f600b1d
SRAM detection from ROM header is no working correctly again
Michael Pavone <pavone@retrodev.com>
parents:
766
diff
changeset
|
1155 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
|
1156 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
|
1157 } |
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
|
1158 romfname = argv[i]; |
463
a1d298119153
Added -h help text option
Mike Pavone <pavone@retrodev.com>
parents:
458
diff
changeset
|
1159 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
|
1160 } 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
|
1161 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
|
1162 } 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
|
1163 height = atoi(argv[i]); |
88
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1164 } |
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1165 } |
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
|
1166 uint8_t menu = !loaded; |
463
a1d298119153
Added -h help text option
Mike Pavone <pavone@retrodev.com>
parents:
458
diff
changeset
|
1167 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
|
1168 //load menu |
948
f87522554d7b
Allow changing the 68K clock divider in the config file
Michael Pavone <pavone@retrodev.com>
parents:
940
diff
changeset
|
1169 romfname = tern_find_path(config, "ui\0rom\0").ptrval; |
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
|
1170 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
|
1171 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
|
1172 } |
875
54ffba3768d6
Make menu stuff work on Android (theoretically)
Michael Pavone <pavone@retrodev.com>
parents:
874
diff
changeset
|
1173 if (romfname[0] == '/') { |
54ffba3768d6
Make menu stuff work on Android (theoretically)
Michael Pavone <pavone@retrodev.com>
parents:
874
diff
changeset
|
1174 if (!(rom_size = load_rom(romfname))) { |
54ffba3768d6
Make menu stuff work on Android (theoretically)
Michael Pavone <pavone@retrodev.com>
parents:
874
diff
changeset
|
1175 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
|
1176 } |
54ffba3768d6
Make menu stuff work on Android (theoretically)
Michael Pavone <pavone@retrodev.com>
parents:
874
diff
changeset
|
1177 } else { |
54ffba3768d6
Make menu stuff work on Android (theoretically)
Michael Pavone <pavone@retrodev.com>
parents:
874
diff
changeset
|
1178 long fsize; |
54ffba3768d6
Make menu stuff work on Android (theoretically)
Michael Pavone <pavone@retrodev.com>
parents:
874
diff
changeset
|
1179 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
|
1180 if (!cart) { |
54ffba3768d6
Make menu stuff work on Android (theoretically)
Michael Pavone <pavone@retrodev.com>
parents:
874
diff
changeset
|
1181 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
|
1182 } |
54ffba3768d6
Make menu stuff work on Android (theoretically)
Michael Pavone <pavone@retrodev.com>
parents:
874
diff
changeset
|
1183 rom_size = nearest_pow2(fsize); |
54ffba3768d6
Make menu stuff work on Android (theoretically)
Michael Pavone <pavone@retrodev.com>
parents:
874
diff
changeset
|
1184 if (rom_size > fsize) { |
54ffba3768d6
Make menu stuff work on Android (theoretically)
Michael Pavone <pavone@retrodev.com>
parents:
874
diff
changeset
|
1185 cart = realloc(cart, rom_size); |
54ffba3768d6
Make menu stuff work on Android (theoretically)
Michael Pavone <pavone@retrodev.com>
parents:
874
diff
changeset
|
1186 } |
54ffba3768d6
Make menu stuff work on Android (theoretically)
Michael Pavone <pavone@retrodev.com>
parents:
874
diff
changeset
|
1187 } |
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
|
1188 //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
|
1189 |
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
|
1190 loaded = 1; |
463
a1d298119153
Added -h help text option
Mike Pavone <pavone@retrodev.com>
parents:
458
diff
changeset
|
1191 } |
948
f87522554d7b
Allow changing the 68K clock divider in the config file
Michael Pavone <pavone@retrodev.com>
parents:
940
diff
changeset
|
1192 char *m68k_divider = tern_find_path(config, "clocks\0m68k_divider\0").ptrval; |
f87522554d7b
Allow changing the 68K clock divider in the config file
Michael Pavone <pavone@retrodev.com>
parents:
940
diff
changeset
|
1193 if (!m68k_divider) { |
f87522554d7b
Allow changing the 68K clock divider in the config file
Michael Pavone <pavone@retrodev.com>
parents:
940
diff
changeset
|
1194 m68k_divider = "7"; |
f87522554d7b
Allow changing the 68K clock divider in the config file
Michael Pavone <pavone@retrodev.com>
parents:
940
diff
changeset
|
1195 } |
f87522554d7b
Allow changing the 68K clock divider in the config file
Michael Pavone <pavone@retrodev.com>
parents:
940
diff
changeset
|
1196 MCLKS_PER_68K = atoi(m68k_divider); |
f87522554d7b
Allow changing the 68K clock divider in the config file
Michael Pavone <pavone@retrodev.com>
parents:
940
diff
changeset
|
1197 if (!MCLKS_PER_68K) { |
f87522554d7b
Allow changing the 68K clock divider in the config file
Michael Pavone <pavone@retrodev.com>
parents:
940
diff
changeset
|
1198 MCLKS_PER_68K = 7; |
f87522554d7b
Allow changing the 68K clock divider in the config file
Michael Pavone <pavone@retrodev.com>
parents:
940
diff
changeset
|
1199 } |
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
|
1200 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
|
1201 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
|
1202 {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
|
1203 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
|
1204 {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
|
1205 (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
|
1206 (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
|
1207 {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
|
1208 (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
|
1209 (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
|
1210 }; |
764
bb60259e8edf
Initial work on ROM database
Michael Pavone <pavone@retrodev.com>
parents:
753
diff
changeset
|
1211 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
|
1212 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
|
1213 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
|
1214 set_region(&info, force_version); |
764
bb60259e8edf
Initial work on ROM database
Michael Pavone <pavone@retrodev.com>
parents:
753
diff
changeset
|
1215 update_title(info.name); |
433
ed4d0017c041
Read default render width from config file
Mike Pavone <pavone@retrodev.com>
parents:
430
diff
changeset
|
1216 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
|
1217 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
|
1218 if (config_width) { |
ed4d0017c041
Read default render width from config file
Mike Pavone <pavone@retrodev.com>
parents:
430
diff
changeset
|
1219 def_width = atoi(config_width); |
ed4d0017c041
Read default render width from config file
Mike Pavone <pavone@retrodev.com>
parents:
430
diff
changeset
|
1220 } |
ed4d0017c041
Read default render width from config file
Mike Pavone <pavone@retrodev.com>
parents:
430
diff
changeset
|
1221 if (!def_width) { |
ed4d0017c041
Read default render width from config file
Mike Pavone <pavone@retrodev.com>
parents:
430
diff
changeset
|
1222 def_width = 640; |
ed4d0017c041
Read default render width from config file
Mike Pavone <pavone@retrodev.com>
parents:
430
diff
changeset
|
1223 } |
ed4d0017c041
Read default render width from config file
Mike Pavone <pavone@retrodev.com>
parents:
430
diff
changeset
|
1224 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
|
1225 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
|
1226 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
|
1227 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
|
1228 fps = 50; |
15dd6418fe67
Initial PSG support. Mostly works, noise channel is borked though.
Mike Pavone <pavone@retrodev.com>
parents:
351
diff
changeset
|
1229 } |
15dd6418fe67
Initial PSG support. Mostly works, noise channel is borked though.
Mike Pavone <pavone@retrodev.com>
parents:
351
diff
changeset
|
1230 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
|
1231 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
|
1232 } |
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
|
1233 |
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
|
1234 genesis = alloc_init_genesis(&info, fps, (ym_log && !menu) ? YM_OPT_WAVE_LOG : 0); |
956
f5550cdffe49
Saving the save directory in the rom_info struct didn't make sense. It should be in the console context.
Michael Pavone <pavone@retrodev.com>
parents:
955
diff
changeset
|
1235 setup_saves(romfname, &info, genesis); |
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
|
1236 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
|
1237 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
|
1238 } 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
|
1239 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
|
1240 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
|
1241 } |
488
32f053ad9b02
Basic OpenGL rendering is working
Mike Pavone <pavone@retrodev.com>
parents:
487
diff
changeset
|
1242 |
884
252dfd29831d
Selecting a second game from the menu now works
Michael Pavone <pavone@retrodev.com>
parents:
883
diff
changeset
|
1243 set_keybindings(genesis->ports); |
885
e3f5ec336432
Allow menu ROM to be debugged
Michael Pavone <pavone@retrodev.com>
parents:
884
diff
changeset
|
1244 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
|
1245 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
|
1246 { |
949
5e4fb650de58
Make Exit option in menu work
Michael Pavone <pavone@retrodev.com>
parents:
940
diff
changeset
|
1247 if (genesis->should_exit) { |
5e4fb650de58
Make Exit option in menu work
Michael Pavone <pavone@retrodev.com>
parents:
940
diff
changeset
|
1248 break; |
5e4fb650de58
Make Exit option in menu work
Michael Pavone <pavone@retrodev.com>
parents:
940
diff
changeset
|
1249 } |
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
|
1250 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
|
1251 if (game_context) { |
252dfd29831d
Selecting a second game from the menu now works
Michael Pavone <pavone@retrodev.com>
parents:
883
diff
changeset
|
1252 if (game_context->save_type != SAVE_NONE) { |
940
4f4f8385da8d
Fix saving of SRAM/EEPROM when switching games in menu
Michael Pavone <pavone@retrodev.com>
parents:
939
diff
changeset
|
1253 genesis = game_context; |
884
252dfd29831d
Selecting a second game from the menu now works
Michael Pavone <pavone@retrodev.com>
parents:
883
diff
changeset
|
1254 persist_save(); |
940
4f4f8385da8d
Fix saving of SRAM/EEPROM when switching games in menu
Michael Pavone <pavone@retrodev.com>
parents:
939
diff
changeset
|
1255 genesis = menu_context; |
884
252dfd29831d
Selecting a second game from the menu now works
Michael Pavone <pavone@retrodev.com>
parents:
883
diff
changeset
|
1256 } |
252dfd29831d
Selecting a second game from the menu now works
Michael Pavone <pavone@retrodev.com>
parents:
883
diff
changeset
|
1257 free(game_context->cart); |
252dfd29831d
Selecting a second game from the menu now works
Michael Pavone <pavone@retrodev.com>
parents:
883
diff
changeset
|
1258 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
|
1259 } else { |
252dfd29831d
Selecting a second game from the menu now works
Michael Pavone <pavone@retrodev.com>
parents:
883
diff
changeset
|
1260 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
|
1261 } |
252dfd29831d
Selecting a second game from the menu now works
Michael Pavone <pavone@retrodev.com>
parents:
883
diff
changeset
|
1262 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
|
1263 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
|
1264 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
|
1265 } |
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
|
1266 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
|
1267 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
|
1268 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
|
1269 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
|
1270 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
|
1271 //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
|
1272 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
|
1273 } else { |
884
252dfd29831d
Selecting a second game from the menu now works
Michael Pavone <pavone@retrodev.com>
parents:
883
diff
changeset
|
1274 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
|
1275 mark_all_free(); |
252dfd29831d
Selecting a second game from the menu now works
Michael Pavone <pavone@retrodev.com>
parents:
883
diff
changeset
|
1276 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
|
1277 } |
884
252dfd29831d
Selecting a second game from the menu now works
Michael Pavone <pavone@retrodev.com>
parents:
883
diff
changeset
|
1278 //allocate new genesis context |
252dfd29831d
Selecting a second game from the menu now works
Michael Pavone <pavone@retrodev.com>
parents:
883
diff
changeset
|
1279 game_context = alloc_init_genesis(&info, fps, ym_log ? YM_OPT_WAVE_LOG : 0); |
957 | 1280 menu_context->next_context = game_context; |
1281 game_context->next_context = menu_context; | |
956
f5550cdffe49
Saving the save directory in the rom_info struct didn't make sense. It should be in the console context.
Michael Pavone <pavone@retrodev.com>
parents:
955
diff
changeset
|
1282 setup_saves(menu_context->next_rom, &info, 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
|
1283 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
|
1284 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
|
1285 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
|
1286 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
|
1287 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
|
1288 map_all_bindings(genesis->ports); |
885
e3f5ec336432
Allow menu ROM to be debugged
Michael Pavone <pavone@retrodev.com>
parents:
884
diff
changeset
|
1289 start_genesis(genesis, statefile, menu == debug_target ? debuggerfun : NULL); |
949
5e4fb650de58
Make Exit option in menu work
Michael Pavone <pavone@retrodev.com>
parents:
940
diff
changeset
|
1290 } else if (menu && 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
|
1291 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
|
1292 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
|
1293 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
|
1294 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
|
1295 menu = 0; |
884
252dfd29831d
Selecting a second game from the menu now works
Michael Pavone <pavone@retrodev.com>
parents:
883
diff
changeset
|
1296 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
|
1297 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
|
1298 } 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
|
1299 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
|
1300 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
|
1301 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
|
1302 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
|
1303 menu = 1; |
884
252dfd29831d
Selecting a second game from the menu now works
Michael Pavone <pavone@retrodev.com>
parents:
883
diff
changeset
|
1304 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
|
1305 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
|
1306 } 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
|
1307 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
|
1308 } |
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
|
1309 } |
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
|
1310 |
88
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1311 return 0; |
c339559f1d4f
Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff
changeset
|
1312 } |