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annotate blastem.c @ 971:e28f365605da

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Move mouse mode and capture state to emulation context so it persists properly when switching between the menu and the game
author Michael Pavone <pavone@retrodev.com>
date Thu, 21 Apr 2016 22:08:26 -0700
parents 750995b587a0
children c6b19939da7b
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140af5509ce7 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.
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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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18 #include "gdb_remote.h"
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b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness
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19 #include "gst.h"
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20 #include "util.h"
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21 #include "romdb.h"
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22 #include "terminal.h"
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23 #include "arena.h"
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24
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25 #define BLASTEM_VERSION "0.3.X"
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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
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36 //TODO: Figure out the exact value for this
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13f994c88c34 Get frame time correct and frame rate sort of correct for EUR region
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37 #define LINES_NTSC 262
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38 #define LINES_PAL 312
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39
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40 #define MAX_SOUND_CYCLES 100000
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41
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42 #ifdef __ANDROID__
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43 #define FULLSCREEN_DEFAULT 1
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44 #else
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45 #define FULLSCREEN_DEFAULT 0
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46 #endif
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47
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48 uint16_t *cart;
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49 uint16_t *ram;
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50 uint8_t z80_ram[Z80_RAM_BYTES];
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51
215
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52 int headless = 0;
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b7b7a1cab44a The local clone on my laptop got messed up and some changes had not been pushed. This commit represents the status of the working copy from that clone. It unfortunately contains some changes that I did not intend to commit yet, but this seems like the best option at the moment.
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53 int exit_after = 0;
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54 int z80_enabled = 1;
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55 int frame_limit = 0;
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56
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57 tern_node * config;
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58
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59 #ifndef MIN
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60 #define MIN(a,b) ((a) < (b) ? (a) : (b))
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61 #endif
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62
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63 #define SMD_HEADER_SIZE 512
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64 #define SMD_MAGIC1 0x03
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65 #define SMD_MAGIC2 0xAA
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66 #define SMD_MAGIC3 0xBB
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67 #define SMD_BLOCK_SIZE 0x4000
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68
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69 int load_smd_rom(long filesize, FILE * f)
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70 {
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71 uint8_t block[SMD_BLOCK_SIZE];
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72 filesize -= SMD_HEADER_SIZE;
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73 fseek(f, SMD_HEADER_SIZE, SEEK_SET);
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74
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75 uint16_t * dst = cart;
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76 int rom_size = filesize;
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77 while (filesize > 0) {
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78 fread(block, 1, SMD_BLOCK_SIZE, f);
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79 for (uint8_t *low = block, *high = (block+SMD_BLOCK_SIZE/2), *end = block+SMD_BLOCK_SIZE; high < end; high++, low++) {
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80 *(dst++) = *low << 8 | *high;
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81 }
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82 filesize -= SMD_BLOCK_SIZE;
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83 }
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84 return filesize;
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85 }
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86
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87 void byteswap_rom(int filesize)
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88 {
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89 for(unsigned short * cur = cart; cur - cart < filesize/2; ++cur)
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90 {
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91 *cur = (*cur >> 8) | (*cur << 8);
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92 }
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93 }
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94
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95 int load_rom(char * filename)
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96 {
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97 uint8_t header[10];
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98 FILE * f = fopen(filename, "rb");
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99 if (!f) {
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100 return 0;
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101 }
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102 if (sizeof(header) != fread(header, 1, sizeof(header), f)) {
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103 fatal_error("Error reading from %s\n", filename);
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104 }
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105 fseek(f, 0, SEEK_END);
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106 long filesize = ftell(f);
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107 fseek(f, 0, SEEK_SET);
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108 if (header[1] == SMD_MAGIC1 && header[8] == SMD_MAGIC2 && header[9] == SMD_MAGIC3) {
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109 int i;
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110 for (i = 3; i < 8; i++) {
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111 if (header[i] != 0) {
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112 break;
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113 }
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114 }
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115 if (i == 8) {
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116 if (header[2]) {
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117 fatal_error("%s is a split SMD ROM which is not currently supported", filename);
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118 }
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119 return load_smd_rom(filesize, f);
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120 }
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121 }
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122 cart = malloc(nearest_pow2(filesize));
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123 if (filesize != fread(cart, 1, filesize, f)) {
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124 fatal_error("Error reading from %s\n", filename);
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125 }
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126 fclose(f);
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127 return filesize;
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128 }
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129
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130 uint16_t read_dma_value(uint32_t address)
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
131 {
c339559f1d4f Forgot to add blastem main file earlier
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parents:
diff changeset
132 //addresses here are word addresses (i.e. bit 0 corresponds to A1), so no need to do div by 2
c339559f1d4f Forgot to add blastem main file earlier
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parents:
diff changeset
133 if (address < 0x200000) {
c339559f1d4f Forgot to add blastem main file earlier
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parents:
diff changeset
134 return cart[address];
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
135 } else if(address >= 0x700000) {
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
136 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
Michael Pavone <pavone@retrodev.com>
parents: 913
diff changeset
137 } 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
Michael Pavone <pavone@retrodev.com>
parents: 913
diff changeset
138 uint16_t *ptr = get_native_pointer(address*2, (void **)genesis->m68k->mem_pointers, &genesis->m68k->options->gen);
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
Michael Pavone <pavone@retrodev.com>
parents: 913
diff changeset
139 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
Michael Pavone <pavone@retrodev.com>
parents: 913
diff changeset
140 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
Michael Pavone <pavone@retrodev.com>
parents: 913
diff changeset
141 }
88
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
142 }
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
143 //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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parents:
diff changeset
144 return 0;
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
145 }
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
146
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
147 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
Mike Pavone <pavone@retrodev.com>
parents: 185
diff changeset
148 {
717
22dbdf50d33c Small correction to VBLANK flag timing. Fixed some inconsistencies in interrupt timing calculation.
Michael Pavone <pavone@retrodev.com>
parents: 700
diff changeset
149 //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
Michael Pavone <pavone@retrodev.com>
parents: 695
diff changeset
150 genesis_context *gen = context->system;
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
151 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
Michael Pavone <pavone@retrodev.com>
parents: 695
diff changeset
152 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
Michael Pavone <pavone@retrodev.com>
parents: 695
diff changeset
153 }
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
154 context->int_cycle = CYCLE_NEVER;
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
155 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.
Mike Pavone <pavone@retrodev.com>
parents: 290
diff changeset
156 uint32_t next_vint = vdp_next_vint(v_context);
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
157 if (next_vint != CYCLE_NEVER) {
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
158 context->int_cycle = next_vint;
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
159 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.
Mike Pavone <pavone@retrodev.com>
parents: 290
diff changeset
160 }
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
161 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.
Mike Pavone <pavone@retrodev.com>
parents: 290
diff changeset
162 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.
Mike Pavone <pavone@retrodev.com>
parents: 290
diff changeset
163 if (next_hint != CYCLE_NEVER) {
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
164 if (next_hint < context->int_cycle) {
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
165 context->int_cycle = next_hint;
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
166 context->int_num = 4;
488
32f053ad9b02 Basic OpenGL rendering is working
Mike Pavone <pavone@retrodev.com>
parents: 487
diff changeset
167
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
168 }
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
169 }
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
170 }
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
171 }
846
98d7b6073163 Implement interrupt latency. Fixes Sesame Street: Counting Cafe and gives accurate results in my test ROM
Michael Pavone <pavone@retrodev.com>
parents: 844
diff changeset
172 if (context->int_cycle > context->current_cycle) {
98d7b6073163 Implement interrupt latency. Fixes Sesame Street: Counting Cafe and gives accurate results in my test ROM
Michael Pavone <pavone@retrodev.com>
parents: 844
diff changeset
173 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>
parents: 844
diff changeset
174 }
717
22dbdf50d33c Small correction to VBLANK flag timing. Fixed some inconsistencies in interrupt timing calculation.
Michael Pavone <pavone@retrodev.com>
parents: 700
diff changeset
175 /*if (context->int_cycle != old_int_cycle) {
22dbdf50d33c Small correction to VBLANK flag timing. Fixed some inconsistencies in interrupt timing calculation.
Michael Pavone <pavone@retrodev.com>
parents: 700
diff changeset
176 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.
Michael Pavone <pavone@retrodev.com>
parents: 700
diff changeset
177 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 changeset
178 }*/
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
179
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
180 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>
parents: 861
diff changeset
181 if (context->should_return) {
7022ba865cfd Initial work for allowing loading a ROM from menu
Michael Pavone <pavone@retrodev.com>
parents: 861
diff changeset
182 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.
Michael Pavone <pavone@retrodev.com>
parents: 889
diff changeset
183 } 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>
parents: 889
diff changeset
184 //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.
Michael Pavone <pavone@retrodev.com>
parents: 889
diff changeset
185 //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.
Michael Pavone <pavone@retrodev.com>
parents: 889
diff changeset
186 context->target_cycle = context->current_cycle;
872
7022ba865cfd Initial work for allowing loading a ROM from menu
Michael Pavone <pavone@retrodev.com>
parents: 861
diff changeset
187 }
488
32f053ad9b02 Basic OpenGL rendering is working
Mike Pavone <pavone@retrodev.com>
parents: 487
diff changeset
188 /*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
189 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.
Mike Pavone <pavone@retrodev.com>
parents: 290
diff changeset
190 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
191 }
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
192
198
209a37eed3e7 Add support for breaking into the debugger while game is running
Mike Pavone <pavone@retrodev.com>
parents: 197
diff changeset
193 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
194 char *save_state_path;
260
625f8e4d5fd2 Initial stab at integartiong Z80 core
Mike Pavone <pavone@retrodev.com>
parents: 215
diff changeset
195
280
9ee64039ddeb Fix bank register update
Mike Pavone <pavone@retrodev.com>
parents: 279
diff changeset
196 //#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
197 #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
198 #define dprintf printf
271
969ee17471c5 Protect debug prints for busreq/reset regs with appropriate macros
Mike Pavone <pavone@retrodev.com>
parents: 268
diff changeset
199 #define dputs puts
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
200 #else
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
201 #define dprintf
271
969ee17471c5 Protect debug prints for busreq/reset regs with appropriate macros
Mike Pavone <pavone@retrodev.com>
parents: 268
diff changeset
202 #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 changeset
203 #endif
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
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
205 #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
206
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
207 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
208 {
682
Michael Pavone <pavone@retrodev.com>
parents: 680 559
diff changeset
209 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
210 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
211 z_context->int_pulse_end = z_context->int_pulse_start + Z80_VINT_DURATION * MCLKS_PER_Z80;
682
Michael Pavone <pavone@retrodev.com>
parents: 680 559
diff changeset
212 }
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
213
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
214 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 changeset
215 {
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
216 #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
217 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
218 z80_run(z_context, mclks);
548
a3afee2271ce Initial work on the x86-32 target
Michael Pavone <pavone@retrodev.com>
parents: 534
diff changeset
219 } else
a3afee2271ce Initial work on the x86-32 target
Michael Pavone <pavone@retrodev.com>
parents: 534
diff changeset
220 #endif
a3afee2271ce Initial work on the x86-32 target
Michael Pavone <pavone@retrodev.com>
parents: 534
diff changeset
221 {
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
222 z_context->current_cycle = mclks;
260
625f8e4d5fd2 Initial stab at integartiong Z80 core
Mike Pavone <pavone@retrodev.com>
parents: 215
diff changeset
223 }
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
224 }
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
225
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
226 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 changeset
227 {
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
228 //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
Mike Pavone <pavone@retrodev.com>
parents: 482
diff changeset
229 while (target > gen->psg->cycles && target - gen->psg->cycles > MAX_SOUND_CYCLES) {
3e1573fa22cf Implement turbo/slow motion feature that overclocks or underclocks the entire system at the push of a button
Mike Pavone <pavone@retrodev.com>
parents: 482
diff changeset
230 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
Mike Pavone <pavone@retrodev.com>
parents: 482
diff changeset
231 //printf("Running PSG to cycle %d\n", cur_target);
3e1573fa22cf Implement turbo/slow motion feature that overclocks or underclocks the entire system at the push of a button
Mike Pavone <pavone@retrodev.com>
parents: 482
diff changeset
232 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
233 //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
234 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
235 }
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
236 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
237 ym_run(gen->ym, target);
488
32f053ad9b02 Basic OpenGL rendering is working
Mike Pavone <pavone@retrodev.com>
parents: 487
diff changeset
238
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
239 //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.
Mike Pavone <pavone@retrodev.com>
parents: 374
diff changeset
240 }
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
241
928
8bd82aead087 Minor adjustment to refresh interval to better match latest measurements
Michael Pavone <pavone@retrodev.com>
parents: 918
diff changeset
242 #define REFRESH_INTERVAL 128
889
2d1122123fe9 Approximation of refresh wait states
Michael Pavone <pavone@retrodev.com>
parents: 885
diff changeset
243 #define REFRESH_DELAY 2
697
7f96bd1cb1be Sync fixes and logging to fix more sync issues
Michael Pavone <pavone@retrodev.com>
parents: 696
diff changeset
244 uint32_t last_frame_num;
889
2d1122123fe9 Approximation of refresh wait states
Michael Pavone <pavone@retrodev.com>
parents: 885
diff changeset
245 uint32_t last_sync_cycle;
2d1122123fe9 Approximation of refresh wait states
Michael Pavone <pavone@retrodev.com>
parents: 885
diff changeset
246 uint32_t refresh_counter;
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
247 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
248 {
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
249 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
250 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
251 z80_context * z_context = gen->z80;
889
2d1122123fe9 Approximation of refresh wait states
Michael Pavone <pavone@retrodev.com>
parents: 885
diff changeset
252 //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
253 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.
Michael Pavone <pavone@retrodev.com>
parents: 889
diff changeset
254 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: 889
diff changeset
255 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.
Michael Pavone <pavone@retrodev.com>
parents: 889
diff changeset
256 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: 889
diff changeset
257 }
889
2d1122123fe9 Approximation of refresh wait states
Michael Pavone <pavone@retrodev.com>
parents: 885
diff changeset
258
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
259 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
260 sync_z80(z_context, mclks);
695
e1345921e481 Indentation fixup
Michael Pavone <pavone@retrodev.com>
parents: 693
diff changeset
261 sync_sound(gen, mclks);
697
7f96bd1cb1be Sync fixes and logging to fix more sync issues
Michael Pavone <pavone@retrodev.com>
parents: 696
diff changeset
262 vdp_run_context(v_context, mclks);
7f96bd1cb1be Sync fixes and logging to fix more sync issues
Michael Pavone <pavone@retrodev.com>
parents: 696
diff changeset
263 if (v_context->frame != last_frame_num) {
7f96bd1cb1be Sync fixes and logging to fix more sync issues
Michael Pavone <pavone@retrodev.com>
parents: 696
diff changeset
264 //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);
7f96bd1cb1be Sync fixes and logging to fix more sync issues
Michael Pavone <pavone@retrodev.com>
parents: 696
diff changeset
265 last_frame_num = v_context->frame;
488
32f053ad9b02 Basic OpenGL rendering is working
Mike Pavone <pavone@retrodev.com>
parents: 487
diff changeset
266
697
7f96bd1cb1be Sync fixes and logging to fix more sync issues
Michael Pavone <pavone@retrodev.com>
parents: 696
diff changeset
267 if (!headless) {
7f96bd1cb1be Sync fixes and logging to fix more sync issues
Michael Pavone <pavone@retrodev.com>
parents: 696
diff changeset
268 break_on_sync |= wait_render_frame(v_context, frame_limit);
7f96bd1cb1be Sync fixes and logging to fix more sync issues
Michael Pavone <pavone@retrodev.com>
parents: 696
diff changeset
269 } else if(exit_after){
7f96bd1cb1be Sync fixes and logging to fix more sync issues
Michael Pavone <pavone@retrodev.com>
parents: 696
diff changeset
270 --exit_after;
7f96bd1cb1be Sync fixes and logging to fix more sync issues
Michael Pavone <pavone@retrodev.com>
parents: 696
diff changeset
271 if (!exit_after) {
7f96bd1cb1be Sync fixes and logging to fix more sync issues
Michael Pavone <pavone@retrodev.com>
parents: 696
diff changeset
272 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>
parents: 501
diff changeset
273 }
88
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
274 }
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
275
697
7f96bd1cb1be Sync fixes and logging to fix more sync issues
Michael Pavone <pavone@retrodev.com>
parents: 696
diff changeset
276 vdp_adjust_cycles(v_context, mclks);
7f96bd1cb1be Sync fixes and logging to fix more sync issues
Michael Pavone <pavone@retrodev.com>
parents: 696
diff changeset
277 io_adjust_cycles(gen->ports, context->current_cycle, mclks);
7f96bd1cb1be Sync fixes and logging to fix more sync issues
Michael Pavone <pavone@retrodev.com>
parents: 696
diff changeset
278 io_adjust_cycles(gen->ports+1, context->current_cycle, mclks);
7f96bd1cb1be Sync fixes and logging to fix more sync issues
Michael Pavone <pavone@retrodev.com>
parents: 696
diff changeset
279 io_adjust_cycles(gen->ports+2, context->current_cycle, mclks);
7f96bd1cb1be Sync fixes and logging to fix more sync issues
Michael Pavone <pavone@retrodev.com>
parents: 696
diff changeset
280 context->current_cycle -= mclks;
7f96bd1cb1be Sync fixes and logging to fix more sync issues
Michael Pavone <pavone@retrodev.com>
parents: 696
diff changeset
281 z80_adjust_cycles(z_context, mclks);
7f96bd1cb1be Sync fixes and logging to fix more sync issues
Michael Pavone <pavone@retrodev.com>
parents: 696
diff changeset
282 gen->ym->current_cycle -= mclks;
7f96bd1cb1be Sync fixes and logging to fix more sync issues
Michael Pavone <pavone@retrodev.com>
parents: 696
diff changeset
283 gen->psg->cycles -= mclks;
7f96bd1cb1be Sync fixes and logging to fix more sync issues
Michael Pavone <pavone@retrodev.com>
parents: 696
diff changeset
284 if (gen->ym->write_cycle != CYCLE_NEVER) {
7f96bd1cb1be Sync fixes and logging to fix more sync issues
Michael Pavone <pavone@retrodev.com>
parents: 696
diff changeset
285 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
Michael Pavone <pavone@retrodev.com>
parents: 696
diff changeset
286 }
88
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
287 }
700
72ab94527a8a Tiny cleanup
Michael Pavone <pavone@retrodev.com>
parents: 697
diff changeset
288 gen->frame_end = vdp_cycles_to_frame_end(v_context);
697
7f96bd1cb1be Sync fixes and logging to fix more sync issues
Michael Pavone <pavone@retrodev.com>
parents: 696
diff changeset
289 context->sync_cycle = gen->frame_end;
7f96bd1cb1be Sync fixes and logging to fix more sync issues
Michael Pavone <pavone@retrodev.com>
parents: 696
diff changeset
290 //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
291 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
292 //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
293 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
294 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
295 }
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
296 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
297 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
298 }
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
299 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
300 if (address) {
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents: 447
diff changeset
301 if (break_on_sync) {
695
e1345921e481 Indentation fixup
Michael Pavone <pavone@retrodev.com>
parents: 693
diff changeset
302 break_on_sync = 0;
e1345921e481 Indentation fixup
Michael Pavone <pavone@retrodev.com>
parents: 693
diff changeset
303 debugger(context, address);
e1345921e481 Indentation fixup
Michael Pavone <pavone@retrodev.com>
parents: 693
diff changeset
304 }
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
305 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
306 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
307 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
308 //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
309 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
310 {
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
311 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
312 }
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
313 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
314 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
315 save_path = save_state_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
316 } 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
317 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
318 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
319 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
320 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
321 }
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
322 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
323 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
324 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
325 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
326 }
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 } 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
328 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
329 }
198
209a37eed3e7 Add support for breaking into the debugger while game is running
Mike Pavone <pavone@retrodev.com>
parents: 197
diff changeset
330 }
889
2d1122123fe9 Approximation of refresh wait states
Michael Pavone <pavone@retrodev.com>
parents: 885
diff changeset
331 last_sync_cycle = context->current_cycle;
88
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
332 return context;
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
333 }
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
334
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
335 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
336 {
343
467bfa17004a Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents: 342
diff changeset
337 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
338 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
339 }
467bfa17004a Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents: 342
diff changeset
340 vdp_port &= 0x1F;
88
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
341 //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
342 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
343 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
344 vdp_context *v_context = gen->vdp;
88
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
345 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
346 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
347 uint32_t before_cycle = v_context->cycles;
88
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
348 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
349
149
139e5dcd6aa3 Make writes to control and data port block when DMA is in progress
Mike Pavone <pavone@retrodev.com>
parents: 144
diff changeset
350 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
351 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
352 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
353 if (v_context->cycles >= gen->frame_end) {
667
30ccf56842d6 All cycle counters are now based off the master clock. This seems to have messed up Z80 interrupt timing (music in Sonic 2 is too slow for instance), but things are generally working
Michael Pavone <pavone@retrodev.com>
parents: 661
diff changeset
354 context->current_cycle = v_context->cycles;
697
7f96bd1cb1be Sync fixes and logging to fix more sync issues
Michael Pavone <pavone@retrodev.com>
parents: 696
diff changeset
355 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
356 sync_components(context, 0);
697
7f96bd1cb1be Sync fixes and logging to fix more sync issues
Michael Pavone <pavone@retrodev.com>
parents: 696
diff changeset
357 gen->bus_busy = 0;
88
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
358 }
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
359 }
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
360 //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
361 }
139e5dcd6aa3 Make writes to control and data port block when DMA is in progress
Mike Pavone <pavone@retrodev.com>
parents: 144
diff changeset
362 } 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
363 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
364 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
365 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
366 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
367 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
368 if (v_context->cycles >= gen->frame_end) {
667
30ccf56842d6 All cycle counters are now based off the master clock. This seems to have messed up Z80 interrupt timing (music in Sonic 2 is too slow for instance), but things are generally working
Michael Pavone <pavone@retrodev.com>
parents: 661
diff changeset
369 context->current_cycle = v_context->cycles;
697
7f96bd1cb1be Sync fixes and logging to fix more sync issues
Michael Pavone <pavone@retrodev.com>
parents: 696
diff changeset
370 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
371 sync_components(context, 0);
697
7f96bd1cb1be Sync fixes and logging to fix more sync issues
Michael Pavone <pavone@retrodev.com>
parents: 696
diff changeset
372 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
373 }
139e5dcd6aa3 Make writes to control and data port block when DMA is in progress
Mike Pavone <pavone@retrodev.com>
parents: 144
diff changeset
374 }
139e5dcd6aa3 Make writes to control and data port block when DMA is in progress
Mike Pavone <pavone@retrodev.com>
parents: 144
diff changeset
375 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
376 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
377 } else {
139e5dcd6aa3 Make writes to control and data port block when DMA is in progress
Mike Pavone <pavone@retrodev.com>
parents: 144
diff changeset
378 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
379 }
139e5dcd6aa3 Make writes to control and data port block when DMA is in progress
Mike Pavone <pavone@retrodev.com>
parents: 144
diff changeset
380 }
88
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
381 } else {
697
7f96bd1cb1be Sync fixes and logging to fix more sync issues
Michael Pavone <pavone@retrodev.com>
parents: 696
diff changeset
382 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
383 //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
384 adjust_int_cycle(context, v_context);
88
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
385 }
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
386 } 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
387 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
388 }
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
389 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
390 //printf("68K paused for %d (%d) cycles at cycle %d (%d) for write\n", v_context->cycles - context->current_cycle, v_context->cycles - before_cycle, context->current_cycle, before_cycle);
889
2d1122123fe9 Approximation of refresh wait states
Michael Pavone <pavone@retrodev.com>
parents: 885
diff changeset
391 last_sync_cycle = context->current_cycle = v_context->cycles;
680
4996369f1463 Some small synchronization improvements that do not seem to fix anything
Michael Pavone <pavone@retrodev.com>
parents: 679
diff changeset
392 //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
393 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
394 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
395 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
396 }
88
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
397 } else if (vdp_port < 0x18) {
354
15dd6418fe67 Initial PSG support. Mostly works, noise channel is borked though.
Mike Pavone <pavone@retrodev.com>
parents: 351
diff changeset
398 psg_write(gen->psg, value);
88
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
399 } else {
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
400 //TODO: Implement undocumented test register(s)
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
401 }
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
402 return context;
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
403 }
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
404
343
467bfa17004a Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents: 342
diff changeset
405 m68k_context * vdp_port_write_b(uint32_t vdp_port, m68k_context * context, uint8_t value)
467bfa17004a Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents: 342
diff changeset
406 {
357
fa7ea48be9a9 Allow VDP/PSG writes from Z80
Mike Pavone <pavone@retrodev.com>
parents: 356
diff changeset
407 return vdp_port_write(vdp_port, context, vdp_port < 0x10 ? value | value << 8 : ((vdp_port & 1) ? value : 0));
fa7ea48be9a9 Allow VDP/PSG writes from Z80
Mike Pavone <pavone@retrodev.com>
parents: 356
diff changeset
408 }
fa7ea48be9a9 Allow VDP/PSG writes from Z80
Mike Pavone <pavone@retrodev.com>
parents: 356
diff changeset
409
592
4ff7bbb3943b Get rest of emulator compiling again with Z80 core enabled
Michael Pavone <pavone@retrodev.com>
parents: 590
diff changeset
410 void * z80_vdp_port_write(uint32_t vdp_port, void * vcontext, uint8_t value)
357
fa7ea48be9a9 Allow VDP/PSG writes from Z80
Mike Pavone <pavone@retrodev.com>
parents: 356
diff changeset
411 {
592
4ff7bbb3943b Get rest of emulator compiling again with Z80 core enabled
Michael Pavone <pavone@retrodev.com>
parents: 590
diff changeset
412 z80_context * context = vcontext;
357
fa7ea48be9a9 Allow VDP/PSG writes from Z80
Mike Pavone <pavone@retrodev.com>
parents: 356
diff changeset
413 genesis_context * gen = context->system;
660
e7cae6d9aaa6 Add the 3 cycle delay back in to Z80 bank area access
Michael Pavone <pavone@retrodev.com>
parents: 659
diff changeset
414 vdp_port &= 0xFF;
358
9498cfa7f7c8 Make Z80 writes to VDP/PSG not potentially crash the emulator
Mike Pavone <pavone@retrodev.com>
parents: 357
diff changeset
415 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
416 fatal_error("machine freeze due to write to Z80 address %X\n", 0x7F00 | vdp_port);
358
9498cfa7f7c8 Make Z80 writes to VDP/PSG not potentially crash the emulator
Mike Pavone <pavone@retrodev.com>
parents: 357
diff changeset
417 }
9498cfa7f7c8 Make Z80 writes to VDP/PSG not potentially crash the emulator
Mike Pavone <pavone@retrodev.com>
parents: 357
diff changeset
418 if (vdp_port < 0x10) {
9498cfa7f7c8 Make Z80 writes to VDP/PSG not potentially crash the emulator
Mike Pavone <pavone@retrodev.com>
parents: 357
diff changeset
419 //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
420 vdp_run_context(gen->vdp, context->current_cycle);
358
9498cfa7f7c8 Make Z80 writes to VDP/PSG not potentially crash the emulator
Mike Pavone <pavone@retrodev.com>
parents: 357
diff changeset
421 if (vdp_port < 4) {
9498cfa7f7c8 Make Z80 writes to VDP/PSG not potentially crash the emulator
Mike Pavone <pavone@retrodev.com>
parents: 357
diff changeset
422 vdp_data_port_write(gen->vdp, value << 8 | value);
9498cfa7f7c8 Make Z80 writes to VDP/PSG not potentially crash the emulator
Mike Pavone <pavone@retrodev.com>
parents: 357
diff changeset
423 } else if (vdp_port < 8) {
9498cfa7f7c8 Make Z80 writes to VDP/PSG not potentially crash the emulator
Mike Pavone <pavone@retrodev.com>
parents: 357
diff changeset
424 vdp_control_port_write(gen->vdp, value << 8 | value);
9498cfa7f7c8 Make Z80 writes to VDP/PSG not potentially crash the emulator
Mike Pavone <pavone@retrodev.com>
parents: 357
diff changeset
425 } 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
426 fatal_error("Illegal write to HV Counter port %X\n", vdp_port);
358
9498cfa7f7c8 Make Z80 writes to VDP/PSG not potentially crash the emulator
Mike Pavone <pavone@retrodev.com>
parents: 357
diff changeset
427 }
9498cfa7f7c8 Make Z80 writes to VDP/PSG not potentially crash the emulator
Mike Pavone <pavone@retrodev.com>
parents: 357
diff changeset
428 } 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
429 sync_sound(gen, context->current_cycle);
358
9498cfa7f7c8 Make Z80 writes to VDP/PSG not potentially crash the emulator
Mike Pavone <pavone@retrodev.com>
parents: 357
diff changeset
430 psg_write(gen->psg, value);
9498cfa7f7c8 Make Z80 writes to VDP/PSG not potentially crash the emulator
Mike Pavone <pavone@retrodev.com>
parents: 357
diff changeset
431 } 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
432 vdp_test_port_write(gen->vdp, value);
358
9498cfa7f7c8 Make Z80 writes to VDP/PSG not potentially crash the emulator
Mike Pavone <pavone@retrodev.com>
parents: 357
diff changeset
433 }
357
fa7ea48be9a9 Allow VDP/PSG writes from Z80
Mike Pavone <pavone@retrodev.com>
parents: 356
diff changeset
434 return context;
343
467bfa17004a Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents: 342
diff changeset
435 }
467bfa17004a Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents: 342
diff changeset
436
467bfa17004a Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents: 342
diff changeset
437 uint16_t vdp_port_read(uint32_t vdp_port, m68k_context * context)
88
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
438 {
343
467bfa17004a Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents: 342
diff changeset
439 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
440 fatal_error("machine freeze due to read from address %X\n", 0xC00000 | vdp_port);
343
467bfa17004a Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents: 342
diff changeset
441 }
467bfa17004a Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents: 342
diff changeset
442 vdp_port &= 0x1F;
467bfa17004a Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents: 342
diff changeset
443 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
444 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
445 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
446 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
447 uint32_t before_cycle = v_context->cycles;
88
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
448 if (vdp_port < 0x10) {
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
449 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
450 value = vdp_data_port_read(v_context);
88
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
451 } 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
452 value = vdp_control_port_read(v_context);
88
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
453 } else {
343
467bfa17004a Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents: 342
diff changeset
454 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
455 //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
456 }
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
457 } 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
458 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
459 } 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
460 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
461 }
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
462 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
463 //printf("68K paused for %d (%d) cycles at cycle %d (%d) for read\n", v_context->cycles - context->current_cycle, v_context->cycles - before_cycle, context->current_cycle, before_cycle);
889
2d1122123fe9 Approximation of refresh wait states
Michael Pavone <pavone@retrodev.com>
parents: 885
diff changeset
464 last_sync_cycle = context->current_cycle = v_context->cycles;
680
4996369f1463 Some small synchronization improvements that do not seem to fix anything
Michael Pavone <pavone@retrodev.com>
parents: 679
diff changeset
465 //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
466 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
467 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
468 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
469 gen->bus_busy = 0;
88
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
470 }
343
467bfa17004a Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents: 342
diff changeset
471 return value;
467bfa17004a Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents: 342
diff changeset
472 }
467bfa17004a Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents: 342
diff changeset
473
467bfa17004a Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents: 342
diff changeset
474 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
475 {
467bfa17004a Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents: 342
diff changeset
476 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
477 if (vdp_port & 1) {
467bfa17004a Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents: 342
diff changeset
478 return value;
467bfa17004a Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents: 342
diff changeset
479 } else {
467bfa17004a Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents: 342
diff changeset
480 return value >> 8;
467bfa17004a Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents: 342
diff changeset
481 }
88
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
482 }
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
483
592
4ff7bbb3943b Get rest of emulator compiling again with Z80 core enabled
Michael Pavone <pavone@retrodev.com>
parents: 590
diff changeset
484 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
485 {
4ff7bbb3943b Get rest of emulator compiling again with Z80 core enabled
Michael Pavone <pavone@retrodev.com>
parents: 590
diff changeset
486 z80_context * context = vcontext;
4ff7bbb3943b Get rest of emulator compiling again with Z80 core enabled
Michael Pavone <pavone@retrodev.com>
parents: 590
diff changeset
487 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
488 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
489 }
4ff7bbb3943b Get rest of emulator compiling again with Z80 core enabled
Michael Pavone <pavone@retrodev.com>
parents: 590
diff changeset
490 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
491 //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
492 //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
493 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
494 //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
495 //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
496 // 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
497 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
498
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
499
592
4ff7bbb3943b Get rest of emulator compiling again with Z80 core enabled
Michael Pavone <pavone@retrodev.com>
parents: 590
diff changeset
500 vdp_port &= 0x1F;
4ff7bbb3943b Get rest of emulator compiling again with Z80 core enabled
Michael Pavone <pavone@retrodev.com>
parents: 590
diff changeset
501 uint16_t ret;
4ff7bbb3943b Get rest of emulator compiling again with Z80 core enabled
Michael Pavone <pavone@retrodev.com>
parents: 590
diff changeset
502 if (vdp_port < 0x10) {
4ff7bbb3943b Get rest of emulator compiling again with Z80 core enabled
Michael Pavone <pavone@retrodev.com>
parents: 590
diff changeset
503 //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
504 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
505 if (vdp_port < 4) {
4ff7bbb3943b Get rest of emulator compiling again with Z80 core enabled
Michael Pavone <pavone@retrodev.com>
parents: 590
diff changeset
506 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
507 } 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
508 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
509 } 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
510 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
511 }
4ff7bbb3943b Get rest of emulator compiling again with Z80 core enabled
Michael Pavone <pavone@retrodev.com>
parents: 590
diff changeset
512 } else {
4ff7bbb3943b Get rest of emulator compiling again with Z80 core enabled
Michael Pavone <pavone@retrodev.com>
parents: 590
diff changeset
513 //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
514 ret = 0xFFFF;
4ff7bbb3943b Get rest of emulator compiling again with Z80 core enabled
Michael Pavone <pavone@retrodev.com>
parents: 590
diff changeset
515 }
4ff7bbb3943b Get rest of emulator compiling again with Z80 core enabled
Michael Pavone <pavone@retrodev.com>
parents: 590
diff changeset
516 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
517 }
4ff7bbb3943b Get rest of emulator compiling again with Z80 core enabled
Michael Pavone <pavone@retrodev.com>
parents: 590
diff changeset
518
279
6be6056735a9 Fix native address lookup in bannked memory area
Mike Pavone <pavone@retrodev.com>
parents: 276
diff changeset
519 uint32_t zram_counter = 0;
6be6056735a9 Fix native address lookup in bannked memory area
Mike Pavone <pavone@retrodev.com>
parents: 276
diff changeset
520
88
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
521 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
522 {
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
523 genesis_context * gen = context->system;
153
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
524 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
525 //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
526 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
527 if (!z80_enabled || z80_get_busack(gen->z80, context->current_cycle)) {
153
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
528 location &= 0x7FFF;
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
529 if (location < 0x4000) {
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
530 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
531 #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
532 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
533 #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
534 } 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
535 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
536 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
537 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
538 } 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
539 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
540 } 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
541 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
542 }
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
543 } 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
544 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
545 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
546 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
547 } 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
548 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
549 }
395
0b5f93358a93 Add debugger command for saving Z80 RAM to a file
Mike Pavone <pavone@retrodev.com>
parents: 392
diff changeset
550 } 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
551 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
552 }
88
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
553 }
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
554 } else {
153
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
555 location &= 0x1FFF;
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
556 if (location < 0x100) {
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
557 switch(location/2)
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
558 {
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
559 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
560 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
561 break;
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
562 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
563 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
564 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
565 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
566 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
567 break;
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
568 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
569 gen->ports[0].control = value;
153
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
570 break;
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
571 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
572 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
573 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
574 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
575 gen->ports[2].control = value;
153
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
576 break;
88
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
577 }
153
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
578 } else {
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
579 if (location == 0x1100) {
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
580 if (value & 1) {
271
969ee17471c5 Protect debug prints for busreq/reset regs with appropriate macros
Mike Pavone <pavone@retrodev.com>
parents: 268
diff changeset
581 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
582 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
583 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
584 } else {
687c1dd3bcb9 Fake busack when Z80 is disabled
Michael Pavone <pavone@retrodev.com>
parents: 672
diff changeset
585 gen->z80->busack = 1;
153
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
586 }
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
587 } 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
588 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
589 dputs("releasing z80 bus");
280
9ee64039ddeb Fix bank register update
Mike Pavone <pavone@retrodev.com>
parents: 279
diff changeset
590 #ifdef DO_DEBUG_PRINT
279
6be6056735a9 Fix native address lookup in bannked memory area
Mike Pavone <pavone@retrodev.com>
parents: 276
diff changeset
591 char fname[20];
6be6056735a9 Fix native address lookup in bannked memory area
Mike Pavone <pavone@retrodev.com>
parents: 276
diff changeset
592 sprintf(fname, "zram-%d", zram_counter++);
6be6056735a9 Fix native address lookup in bannked memory area
Mike Pavone <pavone@retrodev.com>
parents: 276
diff changeset
593 FILE * f = fopen(fname, "wb");
6be6056735a9 Fix native address lookup in bannked memory area
Mike Pavone <pavone@retrodev.com>
parents: 276
diff changeset
594 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
595 fclose(f);
280
9ee64039ddeb Fix bank register update
Mike Pavone <pavone@retrodev.com>
parents: 279
diff changeset
596 #endif
260
625f8e4d5fd2 Initial stab at integartiong Z80 core
Mike Pavone <pavone@retrodev.com>
parents: 215
diff changeset
597 }
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
598 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
599 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
600 } else {
687c1dd3bcb9 Fake busack when Z80 is disabled
Michael Pavone <pavone@retrodev.com>
parents: 672
diff changeset
601 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
602 }
88
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
603 }
153
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
604 } 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
605 sync_z80(gen->z80, context->current_cycle);
153
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
606 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
607 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
608 z80_clear_reset(gen->z80, context->current_cycle);
5439ae7946ca Made the Z80 core more contained by refactoring some code in blastem.c into z80_to_x86.c
Michael Pavone <pavone@retrodev.com>
parents: 667
diff changeset
609 } 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
610 gen->z80->reset = 0;
153
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
611 }
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
612 } 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
613 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
614 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>
parents: 667
diff changeset
615 } 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
616 gen->z80->reset = 1;
260
625f8e4d5fd2 Initial stab at integartiong Z80 core
Mike Pavone <pavone@retrodev.com>
parents: 215
diff changeset
617 }
153
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
618 }
88
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
619 }
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
620 }
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
621 }
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
622 return context;
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
623 }
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
624
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
625 m68k_context * io_write_w(uint32_t location, m68k_context * context, uint16_t value)
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
626 {
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
627 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
628 return io_write(location, context, value >> 8);
88
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
629 } 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
630 return io_write(location, context, value);
88
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
631 }
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
632 }
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
633
130
0bdbffa9fe90 Make version register return correct value for USA
Mike Pavone <pavone@retrodev.com>
parents: 115
diff changeset
634 #define USA 0x80
0bdbffa9fe90 Make version register return correct value for USA
Mike Pavone <pavone@retrodev.com>
parents: 115
diff changeset
635 #define JAP 0x00
0bdbffa9fe90 Make version register return correct value for USA
Mike Pavone <pavone@retrodev.com>
parents: 115
diff changeset
636 #define EUR 0xC0
0bdbffa9fe90 Make version register return correct value for USA
Mike Pavone <pavone@retrodev.com>
parents: 115
diff changeset
637 #define NO_DISK 0x20
0bdbffa9fe90 Make version register return correct value for USA
Mike Pavone <pavone@retrodev.com>
parents: 115
diff changeset
638 uint8_t version_reg = NO_DISK | USA;
0bdbffa9fe90 Make version register return correct value for USA
Mike Pavone <pavone@retrodev.com>
parents: 115
diff changeset
639
343
467bfa17004a Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents: 342
diff changeset
640 uint8_t io_read(uint32_t location, m68k_context * context)
88
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
641 {
343
467bfa17004a Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents: 342
diff changeset
642 uint8_t value;
288
a8ee7934a1f8 Add a YM2612 stub implementation with just timers and status registers so that games that depend on it can run.
Mike Pavone <pavone@retrodev.com>
parents: 280
diff changeset
643 genesis_context *gen = context->system;
153
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
644 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
645 //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
646 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
647 if (!z80_enabled || z80_get_busack(gen->z80, context->current_cycle)) {
153
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
648 location &= 0x7FFF;
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
649 if (location < 0x4000) {
343
467bfa17004a Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents: 342
diff changeset
650 value = z80_ram[location & 0x1FFF];
288
a8ee7934a1f8 Add a YM2612 stub implementation with just timers and status registers so that games that depend on it can run.
Mike Pavone <pavone@retrodev.com>
parents: 280
diff changeset
651 } 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
652 sync_sound(gen, context->current_cycle);
343
467bfa17004a Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents: 342
diff changeset
653 value = ym_read_status(gen->ym);
153
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
654 } else {
343
467bfa17004a Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents: 342
diff changeset
655 value = 0xFF;
467bfa17004a Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents: 342
diff changeset
656 }
467bfa17004a Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents: 342
diff changeset
657 } else {
467bfa17004a Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents: 342
diff changeset
658 value = 0xFF;
467bfa17004a Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents: 342
diff changeset
659 }
467bfa17004a Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents: 342
diff changeset
660 } else {
467bfa17004a Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents: 342
diff changeset
661 location &= 0x1FFF;
467bfa17004a Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents: 342
diff changeset
662 if (location < 0x100) {
467bfa17004a Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents: 342
diff changeset
663 switch(location/2)
467bfa17004a Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents: 342
diff changeset
664 {
467bfa17004a Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents: 342
diff changeset
665 case 0x0:
467bfa17004a Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents: 342
diff changeset
666 //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
667 value = version_reg;
467bfa17004a Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents: 342
diff changeset
668 break;
467bfa17004a Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents: 342
diff changeset
669 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
670 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
671 break;
467bfa17004a Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents: 342
diff changeset
672 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
673 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
674 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
675 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
676 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
677 break;
467bfa17004a Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents: 342
diff changeset
678 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
679 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
680 break;
467bfa17004a Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents: 342
diff changeset
681 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
682 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
683 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
684 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
685 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
686 break;
343
467bfa17004a Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents: 342
diff changeset
687 default:
467bfa17004a Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents: 342
diff changeset
688 value = 0xFF;
153
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
689 }
42c031184e8a Implement access to Z80 RAM
Mike Pavone <pavone@retrodev.com>
parents: 149
diff changeset
690 } else {
343
467bfa17004a Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents: 342
diff changeset
691 if (location == 0x1100) {
677
687c1dd3bcb9 Fake busack when Z80 is disabled
Michael Pavone <pavone@retrodev.com>
parents: 672
diff changeset
692 value = z80_enabled ? !z80_get_busack(gen->z80, context->current_cycle) : !gen->z80->busack;
753
cee1275f5d08 Lame placeholder support for floating bus bits of IO hardware. Needs to be replaced with prefetch based values
Michael Pavone <pavone@retrodev.com>
parents: 752
diff changeset
693 //TODO: actual pre-fetch emulation
cee1275f5d08 Lame placeholder support for floating bus bits of IO hardware. Needs to be replaced with prefetch based values
Michael Pavone <pavone@retrodev.com>
parents: 752
diff changeset
694 value |= 0x4E;
668
5439ae7946ca Made the Z80 core more contained by refactoring some code in blastem.c into z80_to_x86.c
Michael Pavone <pavone@retrodev.com>
parents: 667
diff changeset
695 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
696 } 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
697 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
698 } else {
467bfa17004a Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents: 342
diff changeset
699 value = 0xFF;
467bfa17004a Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents: 342
diff changeset
700 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
701 }
467bfa17004a Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents: 342
diff changeset
702 }
467bfa17004a Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents: 342
diff changeset
703 }
467bfa17004a Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents: 342
diff changeset
704 return value;
467bfa17004a Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents: 342
diff changeset
705 }
467bfa17004a Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents: 342
diff changeset
706
467bfa17004a Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents: 342
diff changeset
707 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
708 {
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
709 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
710 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
711 value = value | (value << 8);
88
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
712 } 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
713 value <<= 8;
753
cee1275f5d08 Lame placeholder support for floating bus bits of IO hardware. Needs to be replaced with prefetch based values
Michael Pavone <pavone@retrodev.com>
parents: 752
diff changeset
714 //TODO: actual pre-fetch emulation
cee1275f5d08 Lame placeholder support for floating bus bits of IO hardware. Needs to be replaced with prefetch based values
Michael Pavone <pavone@retrodev.com>
parents: 752
diff changeset
715 value |= 0x73;
88
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
716 }
343
467bfa17004a Mostly working runtime generation of memory map read/write functions
Mike Pavone <pavone@retrodev.com>
parents: 342
diff changeset
717 return value;
88
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
718 }
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
719
592
4ff7bbb3943b Get rest of emulator compiling again with Z80 core enabled
Michael Pavone <pavone@retrodev.com>
parents: 590
diff changeset
720 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
721 {
592
4ff7bbb3943b Get rest of emulator compiling again with Z80 core enabled
Michael Pavone <pavone@retrodev.com>
parents: 590
diff changeset
722 z80_context * context = vcontext;
290
171f97e70d85 Implement writes from Z80 to YM-2612
Mike Pavone <pavone@retrodev.com>
parents: 289
diff changeset
723 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
724 sync_sound(gen, context->current_cycle);
290
171f97e70d85 Implement writes from Z80 to YM-2612
Mike Pavone <pavone@retrodev.com>
parents: 289
diff changeset
725 if (location & 1) {
171f97e70d85 Implement writes from Z80 to YM-2612
Mike Pavone <pavone@retrodev.com>
parents: 289
diff changeset
726 ym_data_write(gen->ym, value);
171f97e70d85 Implement writes from Z80 to YM-2612
Mike Pavone <pavone@retrodev.com>
parents: 289
diff changeset
727 } else if (location & 2) {
171f97e70d85 Implement writes from Z80 to YM-2612
Mike Pavone <pavone@retrodev.com>
parents: 289
diff changeset
728 ym_address_write_part2(gen->ym, value);
171f97e70d85 Implement writes from Z80 to YM-2612
Mike Pavone <pavone@retrodev.com>
parents: 289
diff changeset
729 } else {
171f97e70d85 Implement writes from Z80 to YM-2612
Mike Pavone <pavone@retrodev.com>
parents: 289
diff changeset
730 ym_address_write_part1(gen->ym, value);
171f97e70d85 Implement writes from Z80 to YM-2612
Mike Pavone <pavone@retrodev.com>
parents: 289
diff changeset
731 }
171f97e70d85 Implement writes from Z80 to YM-2612
Mike Pavone <pavone@retrodev.com>
parents: 289
diff changeset
732 return context;
171f97e70d85 Implement writes from Z80 to YM-2612
Mike Pavone <pavone@retrodev.com>
parents: 289
diff changeset
733 }
171f97e70d85 Implement writes from Z80 to YM-2612
Mike Pavone <pavone@retrodev.com>
parents: 289
diff changeset
734
592
4ff7bbb3943b Get rest of emulator compiling again with Z80 core enabled
Michael Pavone <pavone@retrodev.com>
parents: 590
diff changeset
735 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
736 {
592
4ff7bbb3943b Get rest of emulator compiling again with Z80 core enabled
Michael Pavone <pavone@retrodev.com>
parents: 590
diff changeset
737 z80_context * context = vcontext;
290
171f97e70d85 Implement writes from Z80 to YM-2612
Mike Pavone <pavone@retrodev.com>
parents: 289
diff changeset
738 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
739 sync_sound(gen, context->current_cycle);
290
171f97e70d85 Implement writes from Z80 to YM-2612
Mike Pavone <pavone@retrodev.com>
parents: 289
diff changeset
740 return ym_read_status(gen->ym);
171f97e70d85 Implement writes from Z80 to YM-2612
Mike Pavone <pavone@retrodev.com>
parents: 289
diff changeset
741 }
171f97e70d85 Implement writes from Z80 to YM-2612
Mike Pavone <pavone@retrodev.com>
parents: 289
diff changeset
742
592
4ff7bbb3943b Get rest of emulator compiling again with Z80 core enabled
Michael Pavone <pavone@retrodev.com>
parents: 590
diff changeset
743 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
744 {
4ff7bbb3943b Get rest of emulator compiling again with Z80 core enabled
Michael Pavone <pavone@retrodev.com>
parents: 590
diff changeset
745 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
746 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
747 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
748 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
749 }
660
e7cae6d9aaa6 Add the 3 cycle delay back in to Z80 bank area access
Michael Pavone <pavone@retrodev.com>
parents: 659
diff changeset
750 //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
751 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
752 //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
753 //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
754 // 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
755 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
756
660
e7cae6d9aaa6 Add the 3 cycle delay back in to Z80 bank area access
Michael Pavone <pavone@retrodev.com>
parents: 659
diff changeset
757 location &= 0x7FFF;
e7cae6d9aaa6 Add the 3 cycle delay back in to Z80 bank area access
Michael Pavone <pavone@retrodev.com>
parents: 659
diff changeset
758 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
759 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
760 }
604
39d7d463ed5b Get Z80 banked access sort of working again
Michael Pavone <pavone@retrodev.com>
parents: 602
diff changeset
761 uint32_t address = context->bank_reg << 15 | location;
616
649db9397fa1 Add support for Z80 access to VDP via bank area
Michael Pavone <pavone@retrodev.com>
parents: 606
diff changeset
762 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
763 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
764 } else {
660
e7cae6d9aaa6 Add the 3 cycle delay back in to Z80 bank area access
Michael Pavone <pavone@retrodev.com>
parents: 659
diff changeset
765 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
766 }
592
4ff7bbb3943b Get rest of emulator compiling again with Z80 core enabled
Michael Pavone <pavone@retrodev.com>
parents: 590
diff changeset
767 return 0;
4ff7bbb3943b Get rest of emulator compiling again with Z80 core enabled
Michael Pavone <pavone@retrodev.com>
parents: 590
diff changeset
768 }
4ff7bbb3943b Get rest of emulator compiling again with Z80 core enabled
Michael Pavone <pavone@retrodev.com>
parents: 590
diff changeset
769
4ff7bbb3943b Get rest of emulator compiling again with Z80 core enabled
Michael Pavone <pavone@retrodev.com>
parents: 590
diff changeset
770 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
771 {
592
4ff7bbb3943b Get rest of emulator compiling again with Z80 core enabled
Michael Pavone <pavone@retrodev.com>
parents: 590
diff changeset
772 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
773 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
774 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
775 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
776 }
660
e7cae6d9aaa6 Add the 3 cycle delay back in to Z80 bank area access
Michael Pavone <pavone@retrodev.com>
parents: 659
diff changeset
777 //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
778 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
779 //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
780 //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
781 // 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
782 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
783
660
e7cae6d9aaa6 Add the 3 cycle delay back in to Z80 bank area access
Michael Pavone <pavone@retrodev.com>
parents: 659
diff changeset
784 location &= 0x7FFF;
604
39d7d463ed5b Get Z80 banked access sort of working again
Michael Pavone <pavone@retrodev.com>
parents: 602
diff changeset
785 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
786 if (address >= 0xE00000) {
39d7d463ed5b Get Z80 banked access sort of working again
Michael Pavone <pavone@retrodev.com>
parents: 602
diff changeset
787 address &= 0xFFFF;
39d7d463ed5b Get Z80 banked access sort of working again
Michael Pavone <pavone@retrodev.com>
parents: 602
diff changeset
788 ((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
789 } else if (address >= 0xC00000) {
649db9397fa1 Add support for Z80 access to VDP via bank area
Michael Pavone <pavone@retrodev.com>
parents: 606
diff changeset
790 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
791 } else {
39d7d463ed5b Get Z80 banked access sort of working again
Michael Pavone <pavone@retrodev.com>
parents: 602
diff changeset
792 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
793 }
39d7d463ed5b Get Z80 banked access sort of working again
Michael Pavone <pavone@retrodev.com>
parents: 602
diff changeset
794 return context;
39d7d463ed5b Get Z80 banked access sort of working again
Michael Pavone <pavone@retrodev.com>
parents: 602
diff changeset
795 }
39d7d463ed5b Get Z80 banked access sort of working again
Michael Pavone <pavone@retrodev.com>
parents: 602
diff changeset
796
39d7d463ed5b Get Z80 banked access sort of working again
Michael Pavone <pavone@retrodev.com>
parents: 602
diff changeset
797 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
798 {
39d7d463ed5b Get Z80 banked access sort of working again
Michael Pavone <pavone@retrodev.com>
parents: 602
diff changeset
799 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
800
604
39d7d463ed5b Get Z80 banked access sort of working again
Michael Pavone <pavone@retrodev.com>
parents: 602
diff changeset
801 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
802 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
803 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
804 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
805 } else {
39d7d463ed5b Get Z80 banked access sort of working again
Michael Pavone <pavone@retrodev.com>
parents: 602
diff changeset
806 context->mem_pointers[1] = NULL;
39d7d463ed5b Get Z80 banked access sort of working again
Michael Pavone <pavone@retrodev.com>
parents: 602
diff changeset
807 }
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
808
592
4ff7bbb3943b Get rest of emulator compiling again with Z80 core enabled
Michael Pavone <pavone@retrodev.com>
parents: 590
diff changeset
809 return context;
290
171f97e70d85 Implement writes from Z80 to YM-2612
Mike Pavone <pavone@retrodev.com>
parents: 289
diff changeset
810 }
171f97e70d85 Implement writes from Z80 to YM-2612
Mike Pavone <pavone@retrodev.com>
parents: 289
diff changeset
811
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
812 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
813 {
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
814 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
815 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
816 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
817 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
818 }
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
819 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
820 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
821 }
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
822
767
ea525f600b1d SRAM detection from ROM header is no working correctly again
Michael Pavone <pavone@retrodev.com>
parents: 766
diff changeset
823 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
824 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
825 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
826 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
827 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
828 {
767
ea525f600b1d SRAM detection from ROM header is no working correctly again
Michael Pavone <pavone@retrodev.com>
parents: 766
diff changeset
829 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
830 if (!f) {
767
ea525f600b1d SRAM detection from ROM header is no working correctly again
Michael Pavone <pavone@retrodev.com>
parents: 766
diff changeset
831 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
832 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
833 }
767
ea525f600b1d SRAM detection from ROM header is no working correctly again
Michael Pavone <pavone@retrodev.com>
parents: 766
diff changeset
834 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
835 fclose(f);
767
ea525f600b1d SRAM detection from ROM header is no working correctly again
Michael Pavone <pavone@retrodev.com>
parents: 766
diff changeset
836 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
837 }
2f264d2a60c2 Support for SRAM with SEGA mapper. Half-finished support for SRAM without SEGA mapper.
Mike Pavone <pavone@retrodev.com>
parents: 346
diff changeset
838
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
839 #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
840 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
841 { 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
842 { 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
843 { 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
844 { 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
845 { 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
846 };
b6842dfb8edf ROM is now run after being selected in menu. Initial path for menu is read from config file.
Michael Pavone <pavone@retrodev.com>
parents: 872
diff changeset
847 #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
848
b6842dfb8edf ROM is now run after being selected in menu. Initial path for menu is read from config file.
Michael Pavone <pavone@retrodev.com>
parents: 872
diff changeset
849 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
850 {
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
851 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
852 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
853
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
854 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
855 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
856 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
857 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
858 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
859
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
860 gen->ym = malloc(sizeof(ym2612_context));
b6842dfb8edf ROM is now run after being selected in menu. Initial path for menu is read from config file.
Michael Pavone <pavone@retrodev.com>
parents: 872
diff changeset
861 ym_init(gen->ym, render_sample_rate(), gen->master_clock, MCLKS_PER_YM, render_audio_buffer(), ym_opts);
b6842dfb8edf ROM is now run after being selected in menu. Initial path for menu is read from config file.
Michael Pavone <pavone@retrodev.com>
parents: 872
diff changeset
862
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
863 gen->psg = malloc(sizeof(psg_context));
b6842dfb8edf ROM is now run after being selected in menu. Initial path for menu is read from config file.
Michael Pavone <pavone@retrodev.com>
parents: 872
diff changeset
864 psg_init(gen->psg, render_sample_rate(), gen->master_clock, MCLKS_PER_PSG, render_audio_buffer());
832
0433fdd9ba66 Added a command line option to force BlastEm to not open a new terminal even if it detects that stdin/out are not terminals
Michael Pavone <pavone@retrodev.com>
parents: 819
diff changeset
865
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 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
867 #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
868 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
869 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
870 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
871 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
872 #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
873
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
874 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
875 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
876 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
877
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
878 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
879 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
880 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
881 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
882
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 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
884 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
885 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
886 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
887 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
888 gen->save_storage = rom->save_buffer;
769
4638b88bc72d Initial work on I2C EEPROM implementation
Michael Pavone <pavone@retrodev.com>
parents: 767
diff changeset
889 gen->eeprom_map = rom->eeprom_map;
4638b88bc72d Initial work on I2C EEPROM implementation
Michael Pavone <pavone@retrodev.com>
parents: 767
diff changeset
890 gen->num_eeprom = rom->num_eeprom;
4638b88bc72d Initial work on I2C EEPROM implementation
Michael Pavone <pavone@retrodev.com>
parents: 767
diff changeset
891 if (gen->save_type == SAVE_I2C) {
770
a3b90f746dcf Broken EEPROM support
Michael Pavone <pavone@retrodev.com>
parents: 769
diff changeset
892 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
893 }
767
ea525f600b1d SRAM detection from ROM header is no working correctly again
Michael Pavone <pavone@retrodev.com>
parents: 766
diff changeset
894 } else {
ea525f600b1d SRAM detection from ROM header is no working correctly again
Michael Pavone <pavone@retrodev.com>
parents: 766
diff changeset
895 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
896 }
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
897
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
898 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
899 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
900 //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
901 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
902 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
903 gen->m68k->system = gen;
488
32f053ad9b02 Basic OpenGL rendering is working
Mike Pavone <pavone@retrodev.com>
parents: 487
diff changeset
904
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
905 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
906 {
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
907 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
908 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
909 }
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
910 }
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
911
874
b6842dfb8edf ROM is now run after being selected in menu. Initial path for menu is read from config file.
Michael Pavone <pavone@retrodev.com>
parents: 872
diff changeset
912 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
913 }
b6842dfb8edf ROM is now run after being selected in menu. Initial path for menu is read from config file.
Michael Pavone <pavone@retrodev.com>
parents: 872
diff changeset
914
884
252dfd29831d Selecting a second game from the menu now works
Michael Pavone <pavone@retrodev.com>
parents: 883
diff changeset
915 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
916 {
252dfd29831d Selecting a second game from the menu now works
Michael Pavone <pavone@retrodev.com>
parents: 883
diff changeset
917 vdp_free(gen->vdp);
252dfd29831d Selecting a second game from the menu now works
Michael Pavone <pavone@retrodev.com>
parents: 883
diff changeset
918 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
919 free(gen->m68k);
252dfd29831d Selecting a second game from the menu now works
Michael Pavone <pavone@retrodev.com>
parents: 883
diff changeset
920 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
921 free(gen->z80);
252dfd29831d Selecting a second game from the menu now works
Michael Pavone <pavone@retrodev.com>
parents: 883
diff changeset
922 ym_free(gen->ym);
252dfd29831d Selecting a second game from the menu now works
Michael Pavone <pavone@retrodev.com>
parents: 883
diff changeset
923 psg_free(gen->psg);
252dfd29831d Selecting a second game from the menu now works
Michael Pavone <pavone@retrodev.com>
parents: 883
diff changeset
924 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
925 free(gen->save_dir);
884
252dfd29831d Selecting a second game from the menu now works
Michael Pavone <pavone@retrodev.com>
parents: 883
diff changeset
926 }
252dfd29831d Selecting a second game from the menu now works
Michael Pavone <pavone@retrodev.com>
parents: 883
diff changeset
927
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
928 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
929 {
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
930
424
7e8e179116af Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents: 422
diff changeset
931 if (statefile) {
7e8e179116af Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents: 422
diff changeset
932 uint32_t pc = load_gst(gen, statefile);
7e8e179116af Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents: 422
diff changeset
933 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
934 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
935 }
451
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents: 447
diff changeset
936 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
937 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
938 insert_breakpoint(gen->m68k, pc, debugger);
424
7e8e179116af Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents: 422
diff changeset
939 }
451
b7c3b2d22858 Added support for saving savestates. Added gst savestate format test harness
Mike Pavone <pavone@retrodev.com>
parents: 447
diff changeset
940 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
941 start_68k_context(gen->m68k, pc);
424
7e8e179116af Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents: 422
diff changeset
942 } 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
943 if (debugger) {
752
296ddfcf0d43 Minor cleanup in init_run_cpu
Michael Pavone <pavone@retrodev.com>
parents: 736
diff changeset
944 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
945 insert_breakpoint(gen->m68k, address, debugger);
424
7e8e179116af Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents: 422
diff changeset
946 }
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
947 m68k_reset(gen->m68k);
211
464513050c85 Small bit of cleanup
Mike Pavone <pavone@retrodev.com>
parents: 198
diff changeset
948 }
464513050c85 Small bit of cleanup
Mike Pavone <pavone@retrodev.com>
parents: 198
diff changeset
949 }
464513050c85 Small bit of cleanup
Mike Pavone <pavone@retrodev.com>
parents: 198
diff changeset
950
764
bb60259e8edf Initial work on ROM database
Michael Pavone <pavone@retrodev.com>
parents: 753
diff changeset
951 char *title;
340
58a085cfc6bd Set window title based on ROM header name
Mike Pavone <pavone@retrodev.com>
parents: 338
diff changeset
952
764
bb60259e8edf Initial work on ROM database
Michael Pavone <pavone@retrodev.com>
parents: 753
diff changeset
953 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
954 {
764
bb60259e8edf Initial work on ROM database
Michael Pavone <pavone@retrodev.com>
parents: 753
diff changeset
955 if (title) {
bb60259e8edf Initial work on ROM database
Michael Pavone <pavone@retrodev.com>
parents: 753
diff changeset
956 free(title);
bb60259e8edf Initial work on ROM database
Michael Pavone <pavone@retrodev.com>
parents: 753
diff changeset
957 title = NULL;
340
58a085cfc6bd Set window title based on ROM header name
Mike Pavone <pavone@retrodev.com>
parents: 338
diff changeset
958 }
764
bb60259e8edf Initial work on ROM database
Michael Pavone <pavone@retrodev.com>
parents: 753
diff changeset
959 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
960 render_update_caption(title);
340
58a085cfc6bd Set window title based on ROM header name
Mike Pavone <pavone@retrodev.com>
parents: 338
diff changeset
961 }
58a085cfc6bd Set window title based on ROM header name
Mike Pavone <pavone@retrodev.com>
parents: 338
diff changeset
962
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
963 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
964 {
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
965 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
966 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
967 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
968 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
969 } 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
970 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
971 }
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
972 }
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
973 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
974 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
975 } 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
976 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
977 } 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
978 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
979 }
341
6ad8e36de685 Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents: 340
diff changeset
980 }
6ad8e36de685 Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents: 340
diff changeset
981
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
982 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
983 {
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
984 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
985 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
986 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
987 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
988 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
989 }
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
990 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
991 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
992 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
993 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
994 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
995 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
996 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
997 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
998 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
999 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
1000 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
1001 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
1002 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
1003 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
1004 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
1005 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
1006 }
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
1007 }
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
1008 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
1009 }
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
1010 }
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
1011
88
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1012 int main(int argc, char ** argv)
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1013 {
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
1014 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
1015 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
1016 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
1017 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
1018 int debug = 0;
407
c3abc4ada43d Add support for logging YM2612 channels to WAVE files
Mike Pavone <pavone@retrodev.com>
parents: 405
diff changeset
1019 int ym_log = 0;
463
a1d298119153 Added -h help text option
Mike Pavone <pavone@retrodev.com>
parents: 458
diff changeset
1020 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
1021 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
1022 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
1023 FILE *address_log = NULL;
425
8b3ae850d1c4 Forgot to null initialize the statfile pointer
Mike Pavone <pavone@retrodev.com>
parents: 424
diff changeset
1024 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
1025 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
1026 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
1027 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
1028 uint8_t debug_target = 0;
463
a1d298119153 Added -h help text option
Mike Pavone <pavone@retrodev.com>
parents: 458
diff changeset
1029 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
1030 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
1031 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
1032 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
1033 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
1034 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
1035 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
1036 }
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
1037 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
1038 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
1039 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
1040 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
1041 debuggerfun = (uint8_t *)debugger;
885
e3f5ec336432 Allow menu ROM to be debugged
Michael Pavone <pavone@retrodev.com>
parents: 884
diff changeset
1042 //allow debugging the menu
e3f5ec336432 Allow menu ROM to be debugged
Michael Pavone <pavone@retrodev.com>
parents: 884
diff changeset
1043 if (argv[i][2] == 'm') {
e3f5ec336432 Allow menu ROM to be debugged
Michael Pavone <pavone@retrodev.com>
parents: 884
diff changeset
1044 debug_target = 1;
e3f5ec336432 Allow menu ROM to be debugged
Michael Pavone <pavone@retrodev.com>
parents: 884
diff changeset
1045 }
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
1046 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
1047 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
1048 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
1049 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
1050 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
1051 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
1052 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
1053 break;
488
32f053ad9b02 Basic OpenGL rendering is working
Mike Pavone <pavone@retrodev.com>
parents: 487
diff changeset
1054 case 'g':
501
e1355aa80f4d Use OpenGL by default. Add OpenGL switch to help text
Mike Pavone <pavone@retrodev.com>
parents: 496
diff changeset
1055 use_gl = 0;
488
32f053ad9b02 Basic OpenGL rendering is working
Mike Pavone <pavone@retrodev.com>
parents: 487
diff changeset
1056 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
1057 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
1058 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
1059 break;
464
226ed16b1fb6 Added version flag
Mike Pavone <pavone@retrodev.com>
parents: 463
diff changeset
1060 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
1061 info_message("blastem %s\n", BLASTEM_VERSION);
464
226ed16b1fb6 Added version flag
Mike Pavone <pavone@retrodev.com>
parents: 463
diff changeset
1062 return 0;
226ed16b1fb6 Added version flag
Mike Pavone <pavone@retrodev.com>
parents: 463
diff changeset
1063 break;
265
c6d12878ea93 Add -n flag for disabling the Z80 core
Mike Pavone <pavone@retrodev.com>
parents: 264
diff changeset
1064 case 'n':
c6d12878ea93 Add -n flag for disabling the Z80 core
Mike Pavone <pavone@retrodev.com>
parents: 264
diff changeset
1065 z80_enabled = 0;
c6d12878ea93 Add -n flag for disabling the Z80 core
Mike Pavone <pavone@retrodev.com>
parents: 264
diff changeset
1066 break;
341
6ad8e36de685 Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents: 340
diff changeset
1067 case 'r':
6ad8e36de685 Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents: 340
diff changeset
1068 i++;
6ad8e36de685 Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents: 340
diff changeset
1069 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
1070 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
1071 }
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
1072 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
1073 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
1074 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
1075 }
6ad8e36de685 Support regions other than USA
Mike Pavone <pavone@retrodev.com>
parents: 340
diff changeset
1076 break;
424
7e8e179116af Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents: 422
diff changeset
1077 case 's':
7e8e179116af Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents: 422
diff changeset
1078 i++;
7e8e179116af Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents: 422
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("-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
1081 }
7e8e179116af Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents: 422
diff changeset
1082 statefile = argv[i];
7e8e179116af Add support for loading GST format savestates
Mike Pavone <pavone@retrodev.com>
parents: 422
diff changeset
1083 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
1084 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
1085 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
1086 break;
407
c3abc4ada43d Add support for logging YM2612 channels to WAVE files
Mike Pavone <pavone@retrodev.com>
parents: 405
diff changeset
1087 case 'y':
c3abc4ada43d Add support for logging YM2612 channels to WAVE files
Mike Pavone <pavone@retrodev.com>
parents: 405
diff changeset
1088 ym_log = 1;
c3abc4ada43d Add support for logging YM2612 channels to WAVE files
Mike Pavone <pavone@retrodev.com>
parents: 405
diff changeset
1089 break;
463
a1d298119153 Added -h help text option
Mike Pavone <pavone@retrodev.com>
parents: 458
diff changeset
1090 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
1091 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
1092 "Usage: blastem [OPTIONS] ROMFILE [WIDTH] [HEIGHT]\n"
463
a1d298119153 Added -h help text option
Mike Pavone <pavone@retrodev.com>
parents: 458
diff changeset
1093 "Options:\n"
a1d298119153 Added -h help text option
Mike Pavone <pavone@retrodev.com>
parents: 458
diff changeset
1094 " -h Print this help text\n"
a1d298119153 Added -h help text option
Mike Pavone <pavone@retrodev.com>
parents: 458
diff changeset
1095 " -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
1096 " -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
1097 " -g Disable OpenGL rendering\n"
463
a1d298119153 Added -h help text option
Mike Pavone <pavone@retrodev.com>
parents: 458
diff changeset
1098 " -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
1099 " -d Enter debugger on startup\n"
a1d298119153 Added -h help text option
Mike Pavone <pavone@retrodev.com>
parents: 458
diff changeset
1100 " -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
1101 " -v Display version number and exit\n"
463
a1d298119153 Added -h help text option
Mike Pavone <pavone@retrodev.com>
parents: 458
diff changeset
1102 " -l Log 68K code addresses (useful for assemblers)\n"
a1d298119153 Added -h help text option
Mike Pavone <pavone@retrodev.com>
parents: 458
diff changeset
1103 " -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
1104 );
a1d298119153 Added -h help text option
Mike Pavone <pavone@retrodev.com>
parents: 458
diff changeset
1105 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
1106 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
1107 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
1108 }
463
a1d298119153 Added -h help text option
Mike Pavone <pavone@retrodev.com>
parents: 458
diff changeset
1109 } else if (!loaded) {
767
ea525f600b1d SRAM detection from ROM header is no working correctly again
Michael Pavone <pavone@retrodev.com>
parents: 766
diff changeset
1110 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
1111 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
1112 }
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
1113 romfname = argv[i];
463
a1d298119153 Added -h help text option
Mike Pavone <pavone@retrodev.com>
parents: 458
diff changeset
1114 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
1115 } 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
1116 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
1117 } 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
1118 height = atoi(argv[i]);
88
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1119 }
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1120 }
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
1121 uint8_t menu = !loaded;
463
a1d298119153 Added -h help text option
Mike Pavone <pavone@retrodev.com>
parents: 458
diff changeset
1122 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
1123 //load menu
948
f87522554d7b Allow changing the 68K clock divider in the config file
Michael Pavone <pavone@retrodev.com>
parents: 940
diff changeset
1124 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
1125 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
1126 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
1127 }
875
54ffba3768d6 Make menu stuff work on Android (theoretically)
Michael Pavone <pavone@retrodev.com>
parents: 874
diff changeset
1128 if (romfname[0] == '/') {
54ffba3768d6 Make menu stuff work on Android (theoretically)
Michael Pavone <pavone@retrodev.com>
parents: 874
diff changeset
1129 if (!(rom_size = load_rom(romfname))) {
54ffba3768d6 Make menu stuff work on Android (theoretically)
Michael Pavone <pavone@retrodev.com>
parents: 874
diff changeset
1130 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
1131 }
54ffba3768d6 Make menu stuff work on Android (theoretically)
Michael Pavone <pavone@retrodev.com>
parents: 874
diff changeset
1132 } else {
54ffba3768d6 Make menu stuff work on Android (theoretically)
Michael Pavone <pavone@retrodev.com>
parents: 874
diff changeset
1133 long fsize;
54ffba3768d6 Make menu stuff work on Android (theoretically)
Michael Pavone <pavone@retrodev.com>
parents: 874
diff changeset
1134 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
1135 if (!cart) {
54ffba3768d6 Make menu stuff work on Android (theoretically)
Michael Pavone <pavone@retrodev.com>
parents: 874
diff changeset
1136 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
1137 }
54ffba3768d6 Make menu stuff work on Android (theoretically)
Michael Pavone <pavone@retrodev.com>
parents: 874
diff changeset
1138 rom_size = nearest_pow2(fsize);
54ffba3768d6 Make menu stuff work on Android (theoretically)
Michael Pavone <pavone@retrodev.com>
parents: 874
diff changeset
1139 if (rom_size > fsize) {
54ffba3768d6 Make menu stuff work on Android (theoretically)
Michael Pavone <pavone@retrodev.com>
parents: 874
diff changeset
1140 cart = realloc(cart, rom_size);
54ffba3768d6 Make menu stuff work on Android (theoretically)
Michael Pavone <pavone@retrodev.com>
parents: 874
diff changeset
1141 }
54ffba3768d6 Make menu stuff work on Android (theoretically)
Michael Pavone <pavone@retrodev.com>
parents: 874
diff changeset
1142 }
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
1143 //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
1144
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
1145 loaded = 1;
463
a1d298119153 Added -h help text option
Mike Pavone <pavone@retrodev.com>
parents: 458
diff changeset
1146 }
948
f87522554d7b Allow changing the 68K clock divider in the config file
Michael Pavone <pavone@retrodev.com>
parents: 940
diff changeset
1147 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
1148 if (!m68k_divider) {
f87522554d7b Allow changing the 68K clock divider in the config file
Michael Pavone <pavone@retrodev.com>
parents: 940
diff changeset
1149 m68k_divider = "7";
f87522554d7b Allow changing the 68K clock divider in the config file
Michael Pavone <pavone@retrodev.com>
parents: 940
diff changeset
1150 }
f87522554d7b Allow changing the 68K clock divider in the config file
Michael Pavone <pavone@retrodev.com>
parents: 940
diff changeset
1151 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
1152 if (!MCLKS_PER_68K) {
f87522554d7b Allow changing the 68K clock divider in the config file
Michael Pavone <pavone@retrodev.com>
parents: 940
diff changeset
1153 MCLKS_PER_68K = 7;
f87522554d7b Allow changing the 68K clock divider in the config file
Michael Pavone <pavone@retrodev.com>
parents: 940
diff changeset
1154 }
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
1155 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
1156 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
1157 {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
1158 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
1159 {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
1160 (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
1161 (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
1162 {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
1163 (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
1164 (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
1165 };
764
bb60259e8edf Initial work on ROM database
Michael Pavone <pavone@retrodev.com>
parents: 753
diff changeset
1166 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
1167 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
1168 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
1169 set_region(&info, force_version);
764
bb60259e8edf Initial work on ROM database
Michael Pavone <pavone@retrodev.com>
parents: 753
diff changeset
1170 update_title(info.name);
433
ed4d0017c041 Read default render width from config file
Mike Pavone <pavone@retrodev.com>
parents: 430
diff changeset
1171 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
1172 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
1173 if (config_width) {
ed4d0017c041 Read default render width from config file
Mike Pavone <pavone@retrodev.com>
parents: 430
diff changeset
1174 def_width = atoi(config_width);
ed4d0017c041 Read default render width from config file
Mike Pavone <pavone@retrodev.com>
parents: 430
diff changeset
1175 }
ed4d0017c041 Read default render width from config file
Mike Pavone <pavone@retrodev.com>
parents: 430
diff changeset
1176 if (!def_width) {
ed4d0017c041 Read default render width from config file
Mike Pavone <pavone@retrodev.com>
parents: 430
diff changeset
1177 def_width = 640;
ed4d0017c041 Read default render width from config file
Mike Pavone <pavone@retrodev.com>
parents: 430
diff changeset
1178 }
ed4d0017c041 Read default render width from config file
Mike Pavone <pavone@retrodev.com>
parents: 430
diff changeset
1179 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
1180 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
1181 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
1182 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
1183 fps = 50;
15dd6418fe67 Initial PSG support. Mostly works, noise channel is borked though.
Mike Pavone <pavone@retrodev.com>
parents: 351
diff changeset
1184 }
15dd6418fe67 Initial PSG support. Mostly works, noise channel is borked though.
Mike Pavone <pavone@retrodev.com>
parents: 351
diff changeset
1185 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
1186 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
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
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
1189 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
1190 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
1191 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
1192 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
1193 } 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
1194 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
1195 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
1196 }
488
32f053ad9b02 Basic OpenGL rendering is working
Mike Pavone <pavone@retrodev.com>
parents: 487
diff changeset
1197
884
252dfd29831d Selecting a second game from the menu now works
Michael Pavone <pavone@retrodev.com>
parents: 883
diff changeset
1198 set_keybindings(genesis->ports);
885
e3f5ec336432 Allow menu ROM to be debugged
Michael Pavone <pavone@retrodev.com>
parents: 884
diff changeset
1199 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
1200 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
1201 {
949
5e4fb650de58 Make Exit option in menu work
Michael Pavone <pavone@retrodev.com>
parents: 940
diff changeset
1202 if (genesis->should_exit) {
5e4fb650de58 Make Exit option in menu work
Michael Pavone <pavone@retrodev.com>
parents: 940
diff changeset
1203 break;
5e4fb650de58 Make Exit option in menu work
Michael Pavone <pavone@retrodev.com>
parents: 940
diff changeset
1204 }
883
9f149f0e98b7 It is now possible to switch back and forth between the menu ROM and the game
Michael Pavone <pavone@retrodev.com>
parents: 875
diff changeset
1205 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
1206 if (game_context) {
252dfd29831d Selecting a second game from the menu now works
Michael Pavone <pavone@retrodev.com>
parents: 883
diff changeset
1207 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
1208 genesis = game_context;
884
252dfd29831d Selecting a second game from the menu now works
Michael Pavone <pavone@retrodev.com>
parents: 883
diff changeset
1209 persist_save();
940
4f4f8385da8d Fix saving of SRAM/EEPROM when switching games in menu
Michael Pavone <pavone@retrodev.com>
parents: 939
diff changeset
1210 genesis = menu_context;
884
252dfd29831d Selecting a second game from the menu now works
Michael Pavone <pavone@retrodev.com>
parents: 883
diff changeset
1211 }
252dfd29831d Selecting a second game from the menu now works
Michael Pavone <pavone@retrodev.com>
parents: 883
diff changeset
1212 free(game_context->cart);
252dfd29831d Selecting a second game from the menu now works
Michael Pavone <pavone@retrodev.com>
parents: 883
diff changeset
1213 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
1214 } else {
252dfd29831d Selecting a second game from the menu now works
Michael Pavone <pavone@retrodev.com>
parents: 883
diff changeset
1215 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
1216 }
252dfd29831d Selecting a second game from the menu now works
Michael Pavone <pavone@retrodev.com>
parents: 883
diff changeset
1217 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
1218 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
1219 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
1220 }
9f149f0e98b7 It is now possible to switch back and forth between the menu ROM and the game
Michael Pavone <pavone@retrodev.com>
parents: 875
diff changeset
1221 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
1222 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
1223 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
1224 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
1225 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
1226 //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
1227 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
1228 } else {
884
252dfd29831d Selecting a second game from the menu now works
Michael Pavone <pavone@retrodev.com>
parents: 883
diff changeset
1229 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
1230 mark_all_free();
252dfd29831d Selecting a second game from the menu now works
Michael Pavone <pavone@retrodev.com>
parents: 883
diff changeset
1231 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
1232 }
884
252dfd29831d Selecting a second game from the menu now works
Michael Pavone <pavone@retrodev.com>
parents: 883
diff changeset
1233 //allocate new genesis context
252dfd29831d Selecting a second game from the menu now works
Michael Pavone <pavone@retrodev.com>
parents: 883
diff changeset
1234 game_context = alloc_init_genesis(&info, fps, ym_log ? YM_OPT_WAVE_LOG : 0);
957
1618d3676a35 Save state menu WIP
Michael Pavone <pavone@retrodev.com>
parents: 956
diff changeset
1235 menu_context->next_context = game_context;
1618d3676a35 Save state menu WIP
Michael Pavone <pavone@retrodev.com>
parents: 956
diff changeset
1236 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
1237 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
1238 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
1239 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
1240 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
1241 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
1242 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
1243 map_all_bindings(genesis->ports);
885
e3f5ec336432 Allow menu ROM to be debugged
Michael Pavone <pavone@retrodev.com>
parents: 884
diff changeset
1244 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
1245 } 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
1246 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
1247 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
1248 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
1249 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
1250 menu = 0;
884
252dfd29831d Selecting a second game from the menu now works
Michael Pavone <pavone@retrodev.com>
parents: 883
diff changeset
1251 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
1252 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
1253 } 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
1254 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
1255 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
1256 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
1257 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
1258 menu = 1;
884
252dfd29831d Selecting a second game from the menu now works
Michael Pavone <pavone@retrodev.com>
parents: 883
diff changeset
1259 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
1260 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
1261 } 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
1262 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
1263 }
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
1264 }
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
1265
88
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1266 return 0;
c339559f1d4f Forgot to add blastem main file earlier
Mike Pavone <pavone@retrodev.com>
parents:
diff changeset
1267 }