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annotate genesis.c @ 2684:c649bcc18487

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Fix crash bug in Android fallback font loading path
author Michael Pavone <pavone@retrodev.com>
date Sat, 29 Mar 2025 23:54:45 -0700
parents dbff641a33df
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1 /*
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
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parents:
diff changeset
2 Copyright 2013-2016 Michael Pavone
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
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parents:
diff changeset
3 This file is part of BlastEm.
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
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parents:
diff changeset
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.
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
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parents:
diff changeset
5 */
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
6 #include "genesis.h"
1503
a763523dadf4 Added code for initializing a combined Genesis + Sega CD system when a Sega CD ISO is loaded
Michael Pavone <pavone@retrodev.com>
parents: 1452
diff changeset
7 #include "segacd.h"
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
8 #include "blastem.h"
1414
d94855080529 Move I2C EEPROM and NOR Flash functions out of romdb.c into new files
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
9 #include "nor.h"
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
10 #include <stdlib.h>
1188
448ce87b87fc Fix missing include that prevented building Windows version
Michael Pavone <pavone@retrodev.com>
parents: 1184
diff changeset
11 #include <ctype.h>
1204
d7be5b6e0a8d Added config file option to specify that RAM should be randomly initialized. Moved default_region inside a new "system" parent node in config
Michael Pavone <pavone@retrodev.com>
parents: 1188
diff changeset
12 #include <time.h>
1220
1e7977460d18 Add mising include in genesis.c so the Windows build works again
Michael Pavone <pavone@retrodev.com>
parents: 1215
diff changeset
13 #include <string.h>
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
14 #include "render.h"
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
15 #include "gst.h"
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
16 #include "util.h"
1111
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
17 #include "debug.h"
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
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parents: 1108
diff changeset
18 #include "gdb_remote.h"
1478
da1dce39e846 Refactored save slot related logic to reduce duplication and allow reuse in new UI. Get state loading/saving mostly working in new UI
Michael Pavone <pavone@retrodev.com>
parents: 1471
diff changeset
19 #include "saves.h"
1583
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
20 #include "bindings.h"
1610
c206a422d466 Added J-Cart support
Michael Pavone <pavone@retrodev.com>
parents: 1595
diff changeset
21 #include "jcart.h"
1901
5433252329fb Set version reg and TAS behavior based on model config
Michael Pavone <pavone@retrodev.com>
parents: 1889
diff changeset
22 #include "config.h"
1946
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23 #include "event_log.h"
2083
372625dd9590 Persist BRAM to file. Load BIOS relative to blastem directory
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parents: 2080
diff changeset
24 #include "paths.h"
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
25 #define MCLKS_NTSC 53693175
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
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parents:
diff changeset
26 #define MCLKS_PAL 53203395
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parents:
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27
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
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parents:
diff changeset
28 uint32_t MCLKS_PER_68K;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
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parents:
diff changeset
29 #define MCLKS_PER_YM 7
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parents:
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30 #define MCLKS_PER_Z80 15
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31 #define MCLKS_PER_PSG (MCLKS_PER_Z80*16)
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f17fe0d00626 Adjust Z80 interrupt pulse duration to match hardware measurements
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32 #define Z80_INT_PULSE_MCLKS 2573 //measured value is ~171.5 Z80 clocks
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
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parents:
diff changeset
33 #define DEFAULT_SYNC_INTERVAL MCLKS_LINE
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
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parents:
diff changeset
34 #define DEFAULT_LOWPASS_CUTOFF 3390
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
35
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
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parents:
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36 #define LINES_NTSC 262
1556
075df0844baa Randomize soft reset timing and fix silly bug that was accidentally clearing IO state on soft reset
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parents: 1555
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37 #define LINES_PAL 313
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
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38
1688
395f684c5379 Fixed the most glaring issues in libretro build
Mike Pavone <pavone@retrodev.com>
parents: 1643
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39 #ifdef IS_LIB
2568
f0ace2494df6 Fix libretro build
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40 #define MAX_SOUND_CYCLES (MCLKS_PER_YM*OPN2_NUM_OPERATORS*6*4)
1688
395f684c5379 Fixed the most glaring issues in libretro build
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parents: 1643
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41 #else
2052
3748a2a8a4b7 Support Sega mapper without 'SEGA SSF' in header or ROM DB entry and implement a subset of the extended Sega mapper implemented in the Mega Everdrive when 'SEGA SSF' is present
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42 #define MAX_SOUND_CYCLES 100000
1688
395f684c5379 Fixed the most glaring issues in libretro build
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parents: 1643
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43 #endif
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
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parents:
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44
1752
d6d4c006a7b3 Initial attempt at interrupts in new Z80 core and integrating it into main executable
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45 #ifdef NEW_CORE
d6d4c006a7b3 Initial attempt at interrupts in new Z80 core and integrating it into main executable
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46 #define Z80_CYCLE cycles
d6d4c006a7b3 Initial attempt at interrupts in new Z80 core and integrating it into main executable
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47 #define Z80_OPTS opts
d6d4c006a7b3 Initial attempt at interrupts in new Z80 core and integrating it into main executable
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48 #define z80_handle_code_write(...)
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5f725429d08f WIP changes to new CPU core for rotate instructions and to get interrupts more functional
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49 #define int_num int_priority
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d6d4c006a7b3 Initial attempt at interrupts in new Z80 core and integrating it into main executable
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50 #else
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51 #define Z80_CYCLE current_cycle
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52 #define Z80_OPTS options
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53 #endif
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54
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55 void genesis_serialize(genesis_context *gen, serialize_buffer *buf, uint32_t m68k_pc, uint8_t all)
1427
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56 {
1946
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57 if (all) {
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58 start_section(buf, SECTION_68000);
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59 m68k_serialize(gen->m68k, m68k_pc, buf);
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60 end_section(buf);
2052
3748a2a8a4b7 Support Sega mapper without 'SEGA SSF' in header or ROM DB entry and implement a subset of the extended Sega mapper implemented in the Mega Everdrive when 'SEGA SSF' is present
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parents: 2039
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61
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62 if (gen->header.type == SYSTEM_GENESIS) {
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63 start_section(buf, SECTION_Z80);
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64 z80_serialize(gen->z80, buf);
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65 end_section(buf);
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66 }
1946
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67 }
2052
3748a2a8a4b7 Support Sega mapper without 'SEGA SSF' in header or ROM DB entry and implement a subset of the extended Sega mapper implemented in the Mega Everdrive when 'SEGA SSF' is present
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68
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69 start_section(buf, SECTION_VDP);
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70 vdp_serialize(gen->vdp, buf);
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71 end_section(buf);
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3748a2a8a4b7 Support Sega mapper without 'SEGA SSF' in header or ROM DB entry and implement a subset of the extended Sega mapper implemented in the Mega Everdrive when 'SEGA SSF' is present
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parents: 2039
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72
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cb62730d5c99 Initial work on Copera emulation
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73 if (gen->header.type != SYSTEM_PICO && gen->header.type != SYSTEM_COPERA) {
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74 start_section(buf, SECTION_YM2612);
65c2e4d990cc WIP Pico emulation
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75 ym_serialize(gen->ym, buf);
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76 end_section(buf);
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77 }
2052
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parents: 2039
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78
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79 start_section(buf, SECTION_PSG);
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80 psg_serialize(gen->psg, buf);
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81 end_section(buf);
2052
3748a2a8a4b7 Support Sega mapper without 'SEGA SSF' in header or ROM DB entry and implement a subset of the extended Sega mapper implemented in the Mega Everdrive when 'SEGA SSF' is present
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parents: 2039
diff changeset
82
1946
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83 if (all) {
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84 start_section(buf, SECTION_GEN_BUS_ARBITER);
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85 save_int8(buf, gen->z80->reset);
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86 save_int8(buf, gen->z80->busreq);
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87 save_int16(buf, gen->z80_bank_reg);
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parents: 2278
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88 //I think the refresh logic may technically be part of the VDP, but whatever
9ead0fe69d9b Implement savestate support for Sega CD
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89 save_int32(buf, gen->last_sync_cycle);
9ead0fe69d9b Implement savestate support for Sega CD
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90 save_int32(buf, gen->refresh_counter);
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91 end_section(buf);
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parents: 2039
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92
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93 if (gen->header.type == SYSTEM_GENESIS) {
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94 start_section(buf, SECTION_SEGA_IO_1);
65c2e4d990cc WIP Pico emulation
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95 io_serialize(gen->io.ports, buf);
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96 end_section(buf);
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97
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98 start_section(buf, SECTION_SEGA_IO_2);
65c2e4d990cc WIP Pico emulation
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99 io_serialize(gen->io.ports + 1, buf);
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100 end_section(buf);
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parents: 2039
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101
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102 start_section(buf, SECTION_SEGA_IO_EXT);
65c2e4d990cc WIP Pico emulation
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103 io_serialize(gen->io.ports + 2, buf);
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104 end_section(buf);
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105 }
2052
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parents: 2039
diff changeset
106
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107 start_section(buf, SECTION_MAIN_RAM);
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108 save_int8(buf, RAM_WORDS * 2 / 1024);
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parents: 1932
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109 save_buffer16(buf, gen->work_ram, RAM_WORDS);
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diff changeset
110 end_section(buf);
2052
3748a2a8a4b7 Support Sega mapper without 'SEGA SSF' in header or ROM DB entry and implement a subset of the extended Sega mapper implemented in the Mega Everdrive when 'SEGA SSF' is present
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parents: 2039
diff changeset
111
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112 if (gen->header.type == SYSTEM_GENESIS) {
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parents: 2424
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113 start_section(buf, SECTION_SOUND_RAM);
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114 save_int8(buf, Z80_RAM_BYTES / 1024);
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115 save_buffer8(buf, gen->zram, Z80_RAM_BYTES);
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parents: 2424
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116 end_section(buf);
2052
3748a2a8a4b7 Support Sega mapper without 'SEGA SSF' in header or ROM DB entry and implement a subset of the extended Sega mapper implemented in the Mega Everdrive when 'SEGA SSF' is present
Michael Pavone <pavone@retrodev.com>
parents: 2039
diff changeset
117
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diff changeset
118 if (gen->version_reg & 0xF) {
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diff changeset
119 //only save TMSS info if it's present
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diff changeset
120 //that will allow a state saved on a model lacking TMSS
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121 //to be loaded on a model that has it
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122 start_section(buf, SECTION_TMSS);
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diff changeset
123 save_int8(buf, gen->tmss);
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diff changeset
124 save_buffer16(buf, gen->tmss_lock, 2);
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diff changeset
125 end_section(buf);
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diff changeset
126 }
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diff changeset
127 }
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parents: 2039
diff changeset
128
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diff changeset
129 cart_serialize(&gen->header, buf);
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diff changeset
130 }
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diff changeset
131 if (gen->expansion) {
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diff changeset
132 segacd_context *cd = gen->expansion;
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diff changeset
133 segacd_serialize(cd, buf, all);
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diff changeset
134 }
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135 }
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diff changeset
136
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diff changeset
137 static uint8_t *serialize(system_header *sys, size_t *size_out)
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diff changeset
138 {
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diff changeset
139 genesis_context *gen = (genesis_context *)sys;
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140 uint32_t address;
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diff changeset
141 #ifndef NEW_CORE
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diff changeset
142 if (gen->m68k->resume_pc) {
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diff changeset
143
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144 gen->header.save_state = SERIALIZE_SLOT+1;
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145 while (!gen->serialize_tmp)
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diff changeset
146 {
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147 gen->m68k->target_cycle = gen->m68k->cycles + 1;
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148 resume_68k(gen->m68k);
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diff changeset
149 }
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diff changeset
150 if (size_out) {
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diff changeset
151 *size_out = gen->serialize_size;
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diff changeset
152 }
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diff changeset
153 uint8_t *ret = gen->serialize_tmp;
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diff changeset
154 gen->serialize_tmp = NULL;
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diff changeset
155 return ret;
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156 } else
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diff changeset
157 #endif
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diff changeset
158 {
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diff changeset
159 serialize_buffer state;
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diff changeset
160 init_serialize(&state);
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diff changeset
161 uint32_t address = read_word(4, (void **)gen->m68k->mem_pointers, &gen->m68k->opts->gen, gen->m68k) << 16;
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diff changeset
162 address |= read_word(6, (void **)gen->m68k->mem_pointers, &gen->m68k->opts->gen, gen->m68k);
1946
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diff changeset
163 genesis_serialize(gen, &state, address, 1);
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diff changeset
164 if (size_out) {
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diff changeset
165 *size_out = state.size;
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diff changeset
166 }
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diff changeset
167 return state.data;
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168 }
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diff changeset
169 }
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diff changeset
170
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diff changeset
171 static void ram_deserialize(deserialize_buffer *buf, void *vgen)
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diff changeset
172 {
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diff changeset
173 genesis_context *gen = vgen;
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diff changeset
174 uint32_t ram_size = load_int8(buf) * 1024 / 2;
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diff changeset
175 if (ram_size > RAM_WORDS) {
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diff changeset
176 fatal_error("State has a RAM size of %d bytes", ram_size * 2);
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diff changeset
177 }
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diff changeset
178 load_buffer16(buf, gen->work_ram, ram_size);
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f284ad74afe1 Make initial bank register state stored in bank_regs match what is put in to mem_pointers for the sega/SSF2 mapper. Invalidate RAM code ranges on RAM deserialization
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diff changeset
179 m68k_invalidate_code_range(gen->m68k, 0xE00000, 0x1000000);
1427
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180 }
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diff changeset
181
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diff changeset
182 static void zram_deserialize(deserialize_buffer *buf, void *vgen)
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diff changeset
183 {
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diff changeset
184 genesis_context *gen = vgen;
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diff changeset
185 uint32_t ram_size = load_int8(buf) * 1024;
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diff changeset
186 if (ram_size > Z80_RAM_BYTES) {
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diff changeset
187 fatal_error("State has a Z80 RAM size of %d bytes", ram_size);
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diff changeset
188 }
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diff changeset
189 load_buffer8(buf, gen->zram, ram_size);
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diff changeset
190 z80_invalidate_code_range(gen->z80, 0, 0x4000);
1427
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diff changeset
191 }
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diff changeset
192
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diff changeset
193 static void update_z80_bank_pointer(genesis_context *gen)
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diff changeset
194 {
1752
d6d4c006a7b3 Initial attempt at interrupts in new Z80 core and integrating it into main executable
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diff changeset
195 if (gen->z80_bank_reg < 0x140) {
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diff changeset
196 gen->z80->mem_pointers[1] = get_native_pointer(gen->z80_bank_reg << 15, (void **)gen->m68k->mem_pointers, &gen->m68k->opts->gen);
1445
349d50930c03 Save and restore Z80 bank register in native save states
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diff changeset
197 } else {
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diff changeset
198 gen->z80->mem_pointers[1] = NULL;
349d50930c03 Save and restore Z80 bank register in native save states
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diff changeset
199 }
1753
33ec5df77fac Integration of new Z80 core is sort of working now
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diff changeset
200 z80_invalidate_code_range(gen->z80, 0x8000, 0xFFFF);
1445
349d50930c03 Save and restore Z80 bank register in native save states
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diff changeset
201 }
349d50930c03 Save and restore Z80 bank register in native save states
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parents: 1444
diff changeset
202
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diff changeset
203 static void bus_arbiter_deserialize(deserialize_buffer *buf, void *vgen)
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diff changeset
204 {
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parents: 1433
diff changeset
205 genesis_context *gen = vgen;
7d4483944d4d Allow actually saving a save state in more Z80 states. Save busreq/reset state in bus arbiter section for "native" save states
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diff changeset
206 gen->z80->reset = load_int8(buf);
7d4483944d4d Allow actually saving a save state in more Z80 states. Save busreq/reset state in bus arbiter section for "native" save states
Michael Pavone <pavone@retrodev.com>
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diff changeset
207 gen->z80->busreq = load_int8(buf);
1752
d6d4c006a7b3 Initial attempt at interrupts in new Z80 core and integrating it into main executable
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parents: 1690
diff changeset
208 gen->z80_bank_reg = load_int16(buf) & 0x1FF;
2280
9ead0fe69d9b Implement savestate support for Sega CD
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parents: 2278
diff changeset
209 if ((buf->size - buf->cur_pos) >= 2 * sizeof(uint32_t)) {
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diff changeset
210 gen->last_sync_cycle = load_int32(buf);
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parents: 2278
diff changeset
211 gen->refresh_counter = load_int32(buf);
9ead0fe69d9b Implement savestate support for Sega CD
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parents: 2278
diff changeset
212 } else {
9ead0fe69d9b Implement savestate support for Sega CD
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diff changeset
213 //save state is from an older version of BlastEm that lacks these fields
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diff changeset
214 //set them to reasonable values
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d74d3998482c Make some progress on compiling full emulator with new 68K core
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diff changeset
215 gen->last_sync_cycle = gen->m68k->cycles;
2280
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diff changeset
216 gen->refresh_counter = 0;
9ead0fe69d9b Implement savestate support for Sega CD
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diff changeset
217 }
1440
7d4483944d4d Allow actually saving a save state in more Z80 states. Save busreq/reset state in bus arbiter section for "native" save states
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diff changeset
218 }
7d4483944d4d Allow actually saving a save state in more Z80 states. Save busreq/reset state in bus arbiter section for "native" save states
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diff changeset
219
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diff changeset
220 static void tmss_deserialize(deserialize_buffer *buf, void *vgen)
3b8e29ef1145 Add TMSS state to save states
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parents: 2037
diff changeset
221 {
3b8e29ef1145 Add TMSS state to save states
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parents: 2037
diff changeset
222 genesis_context *gen = vgen;
3b8e29ef1145 Add TMSS state to save states
Michael Pavone <pavone@retrodev.com>
parents: 2037
diff changeset
223 gen->tmss = load_int8(buf);
3b8e29ef1145 Add TMSS state to save states
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parents: 2037
diff changeset
224 load_buffer16(buf, gen->tmss_lock, 2);
3b8e29ef1145 Add TMSS state to save states
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parents: 2037
diff changeset
225 }
3b8e29ef1145 Add TMSS state to save states
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parents: 2037
diff changeset
226
1636
d2775a242dc6 Make sure M68K sync and target cycles are updated after loading a savestate. Fixes an issue in which loading a savestate would result in things being unresponsive until emulation cycle caught up to whatever the pre-state load sync cycle was
Mike Pavone <pavone@retrodev.com>
parents: 1631
diff changeset
227 static void adjust_int_cycle(m68k_context * context, vdp_context * v_context);
2039
3b8e29ef1145 Add TMSS state to save states
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diff changeset
228 static void check_tmss_lock(genesis_context *gen);
3b8e29ef1145 Add TMSS state to save states
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diff changeset
229 static void toggle_tmss_rom(genesis_context *gen);
2500
d44fe974fb85 Get blastem compiling with new 68K core
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diff changeset
230 #ifndef NEW_CORE
2280
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diff changeset
231 #include "m68k_internal.h" //needed for get_native_address_trans, should be eliminated once handling of PC is cleaned up
2500
d44fe974fb85 Get blastem compiling with new 68K core
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diff changeset
232 #endif
1427
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diff changeset
233 void genesis_deserialize(deserialize_buffer *buf, genesis_context *gen)
4e5797b3935a WIP - New savestate format
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parents: 1420
diff changeset
234 {
4e5797b3935a WIP - New savestate format
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diff changeset
235 register_section_handler(buf, (section_handler){.fun = m68k_deserialize, .data = gen->m68k}, SECTION_68000);
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diff changeset
236 register_section_handler(buf, (section_handler){.fun = vdp_deserialize, .data = gen->vdp}, SECTION_VDP);
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diff changeset
237 register_section_handler(buf, (section_handler){.fun = psg_deserialize, .data = gen->psg}, SECTION_PSG);
1440
7d4483944d4d Allow actually saving a save state in more Z80 states. Save busreq/reset state in bus arbiter section for "native" save states
Michael Pavone <pavone@retrodev.com>
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diff changeset
238 register_section_handler(buf, (section_handler){.fun = bus_arbiter_deserialize, .data = gen}, SECTION_GEN_BUS_ARBITER);
1427
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diff changeset
239 register_section_handler(buf, (section_handler){.fun = ram_deserialize, .data = gen}, SECTION_MAIN_RAM);
1444
14a2834d010c Save/restore mapper state in native save states
Michael Pavone <pavone@retrodev.com>
parents: 1440
diff changeset
240 register_section_handler(buf, (section_handler){.fun = cart_deserialize, .data = gen}, SECTION_MAPPER);
2428
65c2e4d990cc WIP Pico emulation
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parents: 2424
diff changeset
241 if (gen->header.type == SYSTEM_GENESIS) {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
242 register_section_handler(buf, (section_handler){.fun = z80_deserialize, .data = gen->z80}, SECTION_Z80);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
243 register_section_handler(buf, (section_handler){.fun = io_deserialize, .data = gen->io.ports}, SECTION_SEGA_IO_1);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
244 register_section_handler(buf, (section_handler){.fun = io_deserialize, .data = gen->io.ports + 1}, SECTION_SEGA_IO_2);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
245 register_section_handler(buf, (section_handler){.fun = io_deserialize, .data = gen->io.ports + 2}, SECTION_SEGA_IO_EXT);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
246 register_section_handler(buf, (section_handler){.fun = zram_deserialize, .data = gen}, SECTION_SOUND_RAM);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
247 register_section_handler(buf, (section_handler){.fun = tmss_deserialize, .data = gen}, SECTION_TMSS);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
248 }
2459
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
249 if (gen->header.type != SYSTEM_PICO && gen->header.type != SYSTEM_COPERA) {
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
250 register_section_handler(buf, (section_handler){.fun = ym_deserialize, .data = gen->ym}, SECTION_YM2612);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
251 }
2280
9ead0fe69d9b Implement savestate support for Sega CD
Michael Pavone <pavone@retrodev.com>
parents: 2278
diff changeset
252 if (gen->expansion) {
9ead0fe69d9b Implement savestate support for Sega CD
Michael Pavone <pavone@retrodev.com>
parents: 2278
diff changeset
253 segacd_context *cd = gen->expansion;
9ead0fe69d9b Implement savestate support for Sega CD
Michael Pavone <pavone@retrodev.com>
parents: 2278
diff changeset
254 segacd_register_section_handlers(cd, buf);
9ead0fe69d9b Implement savestate support for Sega CD
Michael Pavone <pavone@retrodev.com>
parents: 2278
diff changeset
255 }
2039
3b8e29ef1145 Add TMSS state to save states
Michael Pavone <pavone@retrodev.com>
parents: 2037
diff changeset
256 uint8_t tmss_old = gen->tmss;
2675
dbff641a33df Implement Z80/PSG clock speed test register bit
Michael Pavone <pavone@retrodev.com>
parents: 2673
diff changeset
257 uint8_t old_z80_clock_bit = gen->vdp->test_regs[1] & 1;
2039
3b8e29ef1145 Add TMSS state to save states
Michael Pavone <pavone@retrodev.com>
parents: 2037
diff changeset
258 gen->tmss = 0xFF;
1427
4e5797b3935a WIP - New savestate format
Michael Pavone <pavone@retrodev.com>
parents: 1420
diff changeset
259 while (buf->cur_pos < buf->size)
4e5797b3935a WIP - New savestate format
Michael Pavone <pavone@retrodev.com>
parents: 1420
diff changeset
260 {
4e5797b3935a WIP - New savestate format
Michael Pavone <pavone@retrodev.com>
parents: 1420
diff changeset
261 load_section(buf);
4e5797b3935a WIP - New savestate format
Michael Pavone <pavone@retrodev.com>
parents: 1420
diff changeset
262 }
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
263 if (gen->header.type == SYSTEM_GENESIS && (gen->version_reg & 0xF)) {
2039
3b8e29ef1145 Add TMSS state to save states
Michael Pavone <pavone@retrodev.com>
parents: 2037
diff changeset
264 if (gen->tmss == 0xFF) {
3b8e29ef1145 Add TMSS state to save states
Michael Pavone <pavone@retrodev.com>
parents: 2037
diff changeset
265 //state lacked a TMSS section, assume that the game ROM is mapped in
3b8e29ef1145 Add TMSS state to save states
Michael Pavone <pavone@retrodev.com>
parents: 2037
diff changeset
266 //and that the VDP is unlocked
3b8e29ef1145 Add TMSS state to save states
Michael Pavone <pavone@retrodev.com>
parents: 2037
diff changeset
267 gen->tmss_lock[0] = 0x5345;
3b8e29ef1145 Add TMSS state to save states
Michael Pavone <pavone@retrodev.com>
parents: 2037
diff changeset
268 gen->tmss_lock[1] = 0x4741;
3b8e29ef1145 Add TMSS state to save states
Michael Pavone <pavone@retrodev.com>
parents: 2037
diff changeset
269 gen->tmss = 1;
3b8e29ef1145 Add TMSS state to save states
Michael Pavone <pavone@retrodev.com>
parents: 2037
diff changeset
270 }
3b8e29ef1145 Add TMSS state to save states
Michael Pavone <pavone@retrodev.com>
parents: 2037
diff changeset
271 if (gen->tmss != tmss_old) {
3b8e29ef1145 Add TMSS state to save states
Michael Pavone <pavone@retrodev.com>
parents: 2037
diff changeset
272 toggle_tmss_rom(gen);
3b8e29ef1145 Add TMSS state to save states
Michael Pavone <pavone@retrodev.com>
parents: 2037
diff changeset
273 }
3b8e29ef1145 Add TMSS state to save states
Michael Pavone <pavone@retrodev.com>
parents: 2037
diff changeset
274 check_tmss_lock(gen);
3b8e29ef1145 Add TMSS state to save states
Michael Pavone <pavone@retrodev.com>
parents: 2037
diff changeset
275 }
1445
349d50930c03 Save and restore Z80 bank register in native save states
Michael Pavone <pavone@retrodev.com>
parents: 1444
diff changeset
276 update_z80_bank_pointer(gen);
1636
d2775a242dc6 Make sure M68K sync and target cycles are updated after loading a savestate. Fixes an issue in which loading a savestate would result in things being unresponsive until emulation cycle caught up to whatever the pre-state load sync cycle was
Mike Pavone <pavone@retrodev.com>
parents: 1631
diff changeset
277 adjust_int_cycle(gen->m68k, gen->vdp);
2500
d44fe974fb85 Get blastem compiling with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2499
diff changeset
278 #ifndef NEW_CORE
2280
9ead0fe69d9b Implement savestate support for Sega CD
Michael Pavone <pavone@retrodev.com>
parents: 2278
diff changeset
279 //HACK: Fix this once PC/IR is represented in a better way in 68K core
9ead0fe69d9b Implement savestate support for Sega CD
Michael Pavone <pavone@retrodev.com>
parents: 2278
diff changeset
280 //Would be better for this hack to live in side the 68K core itself, but it's better to do it
9ead0fe69d9b Implement savestate support for Sega CD
Michael Pavone <pavone@retrodev.com>
parents: 2278
diff changeset
281 //after RAM has been loaded to avoid any unnecessary retranslation
9ead0fe69d9b Implement savestate support for Sega CD
Michael Pavone <pavone@retrodev.com>
parents: 2278
diff changeset
282 gen->m68k->resume_pc = get_native_address_trans(gen->m68k, gen->m68k->last_prefetch_address);
9ead0fe69d9b Implement savestate support for Sega CD
Michael Pavone <pavone@retrodev.com>
parents: 2278
diff changeset
283 if (gen->expansion) {
9ead0fe69d9b Implement savestate support for Sega CD
Michael Pavone <pavone@retrodev.com>
parents: 2278
diff changeset
284 segacd_context *cd = gen->expansion;
9ead0fe69d9b Implement savestate support for Sega CD
Michael Pavone <pavone@retrodev.com>
parents: 2278
diff changeset
285 cd->m68k->resume_pc = get_native_address_trans(cd->m68k, cd->m68k->last_prefetch_address);
9ead0fe69d9b Implement savestate support for Sega CD
Michael Pavone <pavone@retrodev.com>
parents: 2278
diff changeset
286 }
2500
d44fe974fb85 Get blastem compiling with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2499
diff changeset
287 #endif
1690
319d90025d50 Implement serialization/deserialization in libretro build
Mike Pavone <pavone@retrodev.com>
parents: 1688
diff changeset
288 free(buf->handlers);
319d90025d50 Implement serialization/deserialization in libretro build
Mike Pavone <pavone@retrodev.com>
parents: 1688
diff changeset
289 buf->handlers = NULL;
2675
dbff641a33df Implement Z80/PSG clock speed test register bit
Michael Pavone <pavone@retrodev.com>
parents: 2673
diff changeset
290 uint8_t new_z80_clock_bit = gen->vdp->test_regs[1] & 1;
dbff641a33df Implement Z80/PSG clock speed test register bit
Michael Pavone <pavone@retrodev.com>
parents: 2673
diff changeset
291 if (old_z80_clock_bit != new_z80_clock_bit) {
dbff641a33df Implement Z80/PSG clock speed test register bit
Michael Pavone <pavone@retrodev.com>
parents: 2673
diff changeset
292 gen->z80->Z80_OPTS->gen.clock_divider = new_z80_clock_bit ? MCLKS_PER_YM : MCLKS_PER_Z80;
dbff641a33df Implement Z80/PSG clock speed test register bit
Michael Pavone <pavone@retrodev.com>
parents: 2673
diff changeset
293 gen->psg->clock_inc = new_z80_clock_bit ? MCLKS_PER_YM * 16 : MCLKS_PER_PSG;
dbff641a33df Implement Z80/PSG clock speed test register bit
Michael Pavone <pavone@retrodev.com>
parents: 2673
diff changeset
294 psg_adjust_master_clock(gen->psg, gen->master_clock);
dbff641a33df Implement Z80/PSG clock speed test register bit
Michael Pavone <pavone@retrodev.com>
parents: 2673
diff changeset
295 z80_invalidate_code_range(gen->z80, 0, 0x4000);
dbff641a33df Implement Z80/PSG clock speed test register bit
Michael Pavone <pavone@retrodev.com>
parents: 2673
diff changeset
296 z80_clock_divider_updated(gen->z80->Z80_OPTS);
dbff641a33df Implement Z80/PSG clock speed test register bit
Michael Pavone <pavone@retrodev.com>
parents: 2673
diff changeset
297 }
1690
319d90025d50 Implement serialization/deserialization in libretro build
Mike Pavone <pavone@retrodev.com>
parents: 1688
diff changeset
298 }
319d90025d50 Implement serialization/deserialization in libretro build
Mike Pavone <pavone@retrodev.com>
parents: 1688
diff changeset
299
319d90025d50 Implement serialization/deserialization in libretro build
Mike Pavone <pavone@retrodev.com>
parents: 1688
diff changeset
300 static void deserialize(system_header *sys, uint8_t *data, size_t size)
319d90025d50 Implement serialization/deserialization in libretro build
Mike Pavone <pavone@retrodev.com>
parents: 1688
diff changeset
301 {
319d90025d50 Implement serialization/deserialization in libretro build
Mike Pavone <pavone@retrodev.com>
parents: 1688
diff changeset
302 genesis_context *gen = (genesis_context *)sys;
319d90025d50 Implement serialization/deserialization in libretro build
Mike Pavone <pavone@retrodev.com>
parents: 1688
diff changeset
303 deserialize_buffer buffer;
319d90025d50 Implement serialization/deserialization in libretro build
Mike Pavone <pavone@retrodev.com>
parents: 1688
diff changeset
304 init_deserialize(&buffer, data, size);
319d90025d50 Implement serialization/deserialization in libretro build
Mike Pavone <pavone@retrodev.com>
parents: 1688
diff changeset
305 genesis_deserialize(&buffer, gen);
1427
4e5797b3935a WIP - New savestate format
Michael Pavone <pavone@retrodev.com>
parents: 1420
diff changeset
306 }
4e5797b3935a WIP - New savestate format
Michael Pavone <pavone@retrodev.com>
parents: 1420
diff changeset
307
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
308 uint16_t read_dma_value(uint32_t address)
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
309 {
1111
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
310 genesis_context *genesis = (genesis_context *)current_system;
2054
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
311 address *= 2;
1420
975b5b7eaa77 Fix DMA from byte-wide SRAM
Michael Pavone <pavone@retrodev.com>
parents: 1416
diff changeset
312 //TODO: Figure out what happens when you try to DMA from weird adresses like IO or banked Z80 area
975b5b7eaa77 Fix DMA from byte-wide SRAM
Michael Pavone <pavone@retrodev.com>
parents: 1416
diff changeset
313 if ((address >= 0xA00000 && address < 0xB00000) || (address >= 0xC00000 && address <= 0xE00000)) {
975b5b7eaa77 Fix DMA from byte-wide SRAM
Michael Pavone <pavone@retrodev.com>
parents: 1416
diff changeset
314 return 0;
975b5b7eaa77 Fix DMA from byte-wide SRAM
Michael Pavone <pavone@retrodev.com>
parents: 1416
diff changeset
315 }
2054
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
316 if (genesis->expansion) {
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
317 segacd_context *cd = genesis->expansion;
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
318 uint32_t word_ram = cd->base + 0x200000;
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
319 uint32_t word_ram_end = cd->base + 0x240000;
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
320 if (address >= word_ram && address < word_ram_end) {
2336
83f5529086c5 Make bogus word RAM read more appropriately bogus
Michael Pavone <pavone@retrodev.com>
parents: 2335
diff changeset
321 if (!cd->has_vdp_dma_value) {
2500
d44fe974fb85 Get blastem compiling with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2499
diff changeset
322 #ifdef NEW_CORE
d44fe974fb85 Get blastem compiling with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2499
diff changeset
323 cd->vdp_dma_value = genesis->m68k->prefetch;
d44fe974fb85 Get blastem compiling with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2499
diff changeset
324 #else
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
325 cd->vdp_dma_value = read_word(genesis->m68k->last_prefetch_address, (void **)genesis->m68k->mem_pointers, &genesis->m68k->opts->gen, genesis->m68k);
2500
d44fe974fb85 Get blastem compiling with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2499
diff changeset
326 #endif
2336
83f5529086c5 Make bogus word RAM read more appropriately bogus
Michael Pavone <pavone@retrodev.com>
parents: 2335
diff changeset
327 cd->has_vdp_dma_value = 1;
83f5529086c5 Make bogus word RAM read more appropriately bogus
Michael Pavone <pavone@retrodev.com>
parents: 2335
diff changeset
328 }
83f5529086c5 Make bogus word RAM read more appropriately bogus
Michael Pavone <pavone@retrodev.com>
parents: 2335
diff changeset
329 uint16_t ret = cd->vdp_dma_value;
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
330 cd->vdp_dma_value = read_word(address, (void **)genesis->m68k->mem_pointers, &genesis->m68k->opts->gen, genesis->m68k);
2336
83f5529086c5 Make bogus word RAM read more appropriately bogus
Michael Pavone <pavone@retrodev.com>
parents: 2335
diff changeset
331 return ret;
2054
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
332 }
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
333 }
2052
3748a2a8a4b7 Support Sega mapper without 'SEGA SSF' in header or ROM DB entry and implement a subset of the extended Sega mapper implemented in the Mega Everdrive when 'SEGA SSF' is present
Michael Pavone <pavone@retrodev.com>
parents: 2039
diff changeset
334
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
335 return read_word(address, (void **)genesis->m68k->mem_pointers, &genesis->m68k->opts->gen, genesis->m68k);
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
336 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
337
2336
83f5529086c5 Make bogus word RAM read more appropriately bogus
Michael Pavone <pavone@retrodev.com>
parents: 2335
diff changeset
338 void vdp_dma_started(void)
83f5529086c5 Make bogus word RAM read more appropriately bogus
Michael Pavone <pavone@retrodev.com>
parents: 2335
diff changeset
339 {
83f5529086c5 Make bogus word RAM read more appropriately bogus
Michael Pavone <pavone@retrodev.com>
parents: 2335
diff changeset
340 genesis_context *genesis = (genesis_context *)current_system;
83f5529086c5 Make bogus word RAM read more appropriately bogus
Michael Pavone <pavone@retrodev.com>
parents: 2335
diff changeset
341 if (genesis->expansion) {
83f5529086c5 Make bogus word RAM read more appropriately bogus
Michael Pavone <pavone@retrodev.com>
parents: 2335
diff changeset
342 segacd_context *cd = genesis->expansion;
83f5529086c5 Make bogus word RAM read more appropriately bogus
Michael Pavone <pavone@retrodev.com>
parents: 2335
diff changeset
343 cd->has_vdp_dma_value = 0;
83f5529086c5 Make bogus word RAM read more appropriately bogus
Michael Pavone <pavone@retrodev.com>
parents: 2335
diff changeset
344 }
83f5529086c5 Make bogus word RAM read more appropriately bogus
Michael Pavone <pavone@retrodev.com>
parents: 2335
diff changeset
345 }
83f5529086c5 Make bogus word RAM read more appropriately bogus
Michael Pavone <pavone@retrodev.com>
parents: 2335
diff changeset
346
83f5529086c5 Make bogus word RAM read more appropriately bogus
Michael Pavone <pavone@retrodev.com>
parents: 2335
diff changeset
347
1117
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents: 1116
diff changeset
348 static uint16_t get_open_bus_value(system_header *system)
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
349 {
1117
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents: 1116
diff changeset
350 genesis_context *genesis = (genesis_context *)system;
2500
d44fe974fb85 Get blastem compiling with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2499
diff changeset
351 #ifdef NEW_CORE
d44fe974fb85 Get blastem compiling with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2499
diff changeset
352 return genesis->m68k->prefetch;
d44fe974fb85 Get blastem compiling with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2499
diff changeset
353 #else
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
354 return read_dma_value(genesis->m68k->last_prefetch_address/2);
2500
d44fe974fb85 Get blastem compiling with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2499
diff changeset
355 #endif
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
356 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
357
1116
fe8c79f82c22 More cleanup in preparation for SMS/Mark III support
Michael Pavone <pavone@retrodev.com>
parents: 1113
diff changeset
358 static void adjust_int_cycle(m68k_context * context, vdp_context * v_context)
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
359 {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
360 //static int old_int_cycle = CYCLE_NEVER;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
361 genesis_context *gen = context->system;
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
362 if (context->sync_cycle - context->cycles > gen->max_cycles) {
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
363 context->sync_cycle = context->cycles + gen->max_cycles;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
364 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
365 context->int_cycle = CYCLE_NEVER;
2025
e7a516f08cec Implement serial IO, a generic serial device type and external interrupts
Michael Pavone <pavone@retrodev.com>
parents: 2021
diff changeset
366 uint8_t mask = context->status & 0x7;
e7a516f08cec Implement serial IO, a generic serial device type and external interrupts
Michael Pavone <pavone@retrodev.com>
parents: 2021
diff changeset
367 if (mask < 6) {
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
368 uint32_t next_vint = vdp_next_vint(v_context);
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
369 if (next_vint != CYCLE_NEVER) {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
370 context->int_cycle = next_vint;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
371 context->int_num = 6;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
372 }
2025
e7a516f08cec Implement serial IO, a generic serial device type and external interrupts
Michael Pavone <pavone@retrodev.com>
parents: 2021
diff changeset
373 if (mask < 4) {
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
374 uint32_t next_hint = vdp_next_hint(v_context);
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
375 if (next_hint != CYCLE_NEVER) {
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
376 next_hint = next_hint < context->cycles ? context->cycles : next_hint;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
377 if (next_hint < context->int_cycle) {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
378 context->int_cycle = next_hint;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
379 context->int_num = 4;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
380
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
381 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
382 }
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
383 if (mask < 2 && (v_context->regs[REG_MODE_3] & BIT_EINT_EN) && gen->header.type == SYSTEM_GENESIS) {
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
384 uint32_t next_eint_port0 = io_next_interrupt(gen->io.ports, context->cycles);
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
385 uint32_t next_eint_port1 = io_next_interrupt(gen->io.ports + 1, context->cycles);
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
386 uint32_t next_eint_port2 = io_next_interrupt(gen->io.ports + 2, context->cycles);
2052
3748a2a8a4b7 Support Sega mapper without 'SEGA SSF' in header or ROM DB entry and implement a subset of the extended Sega mapper implemented in the Mega Everdrive when 'SEGA SSF' is present
Michael Pavone <pavone@retrodev.com>
parents: 2039
diff changeset
387 uint32_t next_eint = next_eint_port0 < next_eint_port1
2025
e7a516f08cec Implement serial IO, a generic serial device type and external interrupts
Michael Pavone <pavone@retrodev.com>
parents: 2021
diff changeset
388 ? (next_eint_port0 < next_eint_port2 ? next_eint_port0 : next_eint_port2)
e7a516f08cec Implement serial IO, a generic serial device type and external interrupts
Michael Pavone <pavone@retrodev.com>
parents: 2021
diff changeset
389 : (next_eint_port1 < next_eint_port2 ? next_eint_port1 : next_eint_port2);
e7a516f08cec Implement serial IO, a generic serial device type and external interrupts
Michael Pavone <pavone@retrodev.com>
parents: 2021
diff changeset
390 if (next_eint != CYCLE_NEVER) {
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
391 next_eint = next_eint < context->cycles ? context->cycles : next_eint;
2025
e7a516f08cec Implement serial IO, a generic serial device type and external interrupts
Michael Pavone <pavone@retrodev.com>
parents: 2021
diff changeset
392 if (next_eint < context->int_cycle) {
e7a516f08cec Implement serial IO, a generic serial device type and external interrupts
Michael Pavone <pavone@retrodev.com>
parents: 2021
diff changeset
393 context->int_cycle = next_eint;
e7a516f08cec Implement serial IO, a generic serial device type and external interrupts
Michael Pavone <pavone@retrodev.com>
parents: 2021
diff changeset
394 context->int_num = 2;
e7a516f08cec Implement serial IO, a generic serial device type and external interrupts
Michael Pavone <pavone@retrodev.com>
parents: 2021
diff changeset
395 }
e7a516f08cec Implement serial IO, a generic serial device type and external interrupts
Michael Pavone <pavone@retrodev.com>
parents: 2021
diff changeset
396 }
e7a516f08cec Implement serial IO, a generic serial device type and external interrupts
Michael Pavone <pavone@retrodev.com>
parents: 2021
diff changeset
397 }
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
398 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
399 }
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
400 if (context->int_cycle > context->cycles && context->int_pending == INT_PENDING_SR_CHANGE) {
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
401 context->int_pending = INT_PENDING_NONE;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
402 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
403 /*if (context->int_cycle != old_int_cycle) {
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
404 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->cycles, v_context->frame, v_context->vcounter, v_context->hslot, context->status & 0x7, v_context->hint_counter);
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
405 old_int_cycle = context->int_cycle;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
406 }*/
2052
3748a2a8a4b7 Support Sega mapper without 'SEGA SSF' in header or ROM DB entry and implement a subset of the extended Sega mapper implemented in the Mega Everdrive when 'SEGA SSF' is present
Michael Pavone <pavone@retrodev.com>
parents: 2039
diff changeset
407
1304
5b90d7669eee Fix exit trace mode edge case. Call do_sync if trace mode bit is changed in eori sr
Michael Pavone <pavone@retrodev.com>
parents: 1303
diff changeset
408 if (context->status & M68K_STATUS_TRACE || context->trace_pending) {
2673
2c8f541af3c5 Get Pico games running with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2654
diff changeset
409 context->target_cycle = context->cycles + 1;
1303
208803173ebc Implemented M68K trace mode. Some edge cases/SR update paths still need work
Michael Pavone <pavone@retrodev.com>
parents: 1291
diff changeset
410 return;
208803173ebc Implemented M68K trace mode. Some edge cases/SR update paths still need work
Michael Pavone <pavone@retrodev.com>
parents: 1291
diff changeset
411 }
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
412
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
413 context->target_cycle = context->int_cycle < context->sync_cycle ? context->int_cycle : context->sync_cycle;
2424
767ec72acca7 Avoid conflicts between watchpoints and normal debugger entry
Michael Pavone <pavone@retrodev.com>
parents: 2391
diff changeset
414 if (context->should_return || gen->header.enter_debugger || context->wp_hit) {
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
415 context->target_cycle = context->cycles;
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
416 } else if (context->target_cycle < context->cycles) {
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
417 //Changes to SR can result in an interrupt cycle that's in the past
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
418 //This can cause issues with the implementation of STOP though
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
419 context->target_cycle = context->cycles;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
420 }
1364
30123ca5856c Added some code to try and prevent Z80 accesses and refresh cycles from screwing up interrupt latency more than on hardware
Michael Pavone <pavone@retrodev.com>
parents: 1348
diff changeset
421 if (context->target_cycle == context->int_cycle) {
30123ca5856c Added some code to try and prevent Z80 accesses and refresh cycles from screwing up interrupt latency more than on hardware
Michael Pavone <pavone@retrodev.com>
parents: 1348
diff changeset
422 //Currently delays from Z80 access and refresh are applied only when we sync
30123ca5856c Added some code to try and prevent Z80 accesses and refresh cycles from screwing up interrupt latency more than on hardware
Michael Pavone <pavone@retrodev.com>
parents: 1348
diff changeset
423 //this can cause extra latency when it comes to interrupts
30123ca5856c Added some code to try and prevent Z80 accesses and refresh cycles from screwing up interrupt latency more than on hardware
Michael Pavone <pavone@retrodev.com>
parents: 1348
diff changeset
424 //to prevent this code forces some extra synchronization in the period immediately before an interrupt
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
425 if ((context->target_cycle - context->cycles) > gen->int_latency_prev1) {
1364
30123ca5856c Added some code to try and prevent Z80 accesses and refresh cycles from screwing up interrupt latency more than on hardware
Michael Pavone <pavone@retrodev.com>
parents: 1348
diff changeset
426 context->target_cycle = context->sync_cycle = context->int_cycle - gen->int_latency_prev1;
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
427 } else if ((context->target_cycle - context->cycles) > gen->int_latency_prev2) {
1364
30123ca5856c Added some code to try and prevent Z80 accesses and refresh cycles from screwing up interrupt latency more than on hardware
Michael Pavone <pavone@retrodev.com>
parents: 1348
diff changeset
428 context->target_cycle = context->sync_cycle = context->int_cycle - gen->int_latency_prev2;
30123ca5856c Added some code to try and prevent Z80 accesses and refresh cycles from screwing up interrupt latency more than on hardware
Michael Pavone <pavone@retrodev.com>
parents: 1348
diff changeset
429 } else {
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
430 context->target_cycle = context->sync_cycle = context->cycles;
1364
30123ca5856c Added some code to try and prevent Z80 accesses and refresh cycles from screwing up interrupt latency more than on hardware
Michael Pavone <pavone@retrodev.com>
parents: 1348
diff changeset
431 }
2052
3748a2a8a4b7 Support Sega mapper without 'SEGA SSF' in header or ROM DB entry and implement a subset of the extended Sega mapper implemented in the Mega Everdrive when 'SEGA SSF' is present
Michael Pavone <pavone@retrodev.com>
parents: 2039
diff changeset
432
1364
30123ca5856c Added some code to try and prevent Z80 accesses and refresh cycles from screwing up interrupt latency more than on hardware
Michael Pavone <pavone@retrodev.com>
parents: 1348
diff changeset
433 }
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
434 /*printf("Cyc: %d, Trgt: %d, Int Cyc: %d, Int: %d, Mask: %X, V: %d, H: %d, HICount: %d, HReg: %d, Line: %d\n",
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
435 context->cycles, context->target_cycle, context->int_cycle, context->int_num, (context->status & 0x7),
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
436 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);*/
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
437 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
438
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
439 //#define DO_DEBUG_PRINT
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
440 #ifdef DO_DEBUG_PRINT
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
441 #define dprintf printf
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
442 #define dputs puts
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
443 #else
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
444 #define dprintf
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
445 #define dputs
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
446 #endif
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
447
1117
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents: 1116
diff changeset
448 static void z80_next_int_pulse(z80_context * z_context)
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
449 {
1108
87114df913ec Fix Z80 interrupt pulse duration. Fixes inconsistent music playback speed in Sonic 2 introduced in 0.4.1
Michael Pavone <pavone@retrodev.com>
parents: 1105
diff changeset
450 genesis_context * gen = z_context->system;
1753
33ec5df77fac Integration of new Z80 core is sort of working now
Michael Pavone <pavone@retrodev.com>
parents: 1752
diff changeset
451 #ifdef NEW_CORE
33ec5df77fac Integration of new Z80 core is sort of working now
Michael Pavone <pavone@retrodev.com>
parents: 1752
diff changeset
452 z_context->int_cycle = vdp_next_vint_z80(gen->vdp);
33ec5df77fac Integration of new Z80 core is sort of working now
Michael Pavone <pavone@retrodev.com>
parents: 1752
diff changeset
453 z_context->int_end_cycle = z_context->int_cycle + Z80_INT_PULSE_MCLKS;
33ec5df77fac Integration of new Z80 core is sort of working now
Michael Pavone <pavone@retrodev.com>
parents: 1752
diff changeset
454 z_context->int_value = 0xFF;
1766
1dc718581aac Fix Z80 interrupts in Gen/MD mode when using new core. Disable CPU debug log in new Z80 core
Michael Pavone <pavone@retrodev.com>
parents: 1753
diff changeset
455 z80_sync_cycle(z_context, z_context->sync_cycle);
1753
33ec5df77fac Integration of new Z80 core is sort of working now
Michael Pavone <pavone@retrodev.com>
parents: 1752
diff changeset
456 #else
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
457 z_context->int_pulse_start = vdp_next_vint_z80(gen->vdp);
1291
f17fe0d00626 Adjust Z80 interrupt pulse duration to match hardware measurements
Michael Pavone <pavone@retrodev.com>
parents: 1288
diff changeset
458 z_context->int_pulse_end = z_context->int_pulse_start + Z80_INT_PULSE_MCLKS;
1471
2e6320d261ff Implemented Z80 IM 2 and attempted correct intack cycle delay
Michael Pavone <pavone@retrodev.com>
parents: 1452
diff changeset
459 z_context->im2_vector = 0xFF;
1753
33ec5df77fac Integration of new Z80 core is sort of working now
Michael Pavone <pavone@retrodev.com>
parents: 1752
diff changeset
460 #endif
1108
87114df913ec Fix Z80 interrupt pulse duration. Fixes inconsistent music playback speed in Sonic 2 introduced in 0.4.1
Michael Pavone <pavone@retrodev.com>
parents: 1105
diff changeset
461 }
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
462
2184
408fb8a7e990 Implement argumentless variant of z80 debugger command
Michael Pavone <pavone@retrodev.com>
parents: 2179
diff changeset
463 static void sync_z80(genesis_context *gen, uint32_t mclks)
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
464 {
2184
408fb8a7e990 Implement argumentless variant of z80 debugger command
Michael Pavone <pavone@retrodev.com>
parents: 2179
diff changeset
465 z80_context *z_context = gen->z80;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
466 #ifndef NO_Z80
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
467 if (z80_enabled) {
1753
33ec5df77fac Integration of new Z80 core is sort of working now
Michael Pavone <pavone@retrodev.com>
parents: 1752
diff changeset
468 #ifdef NEW_CORE
1766
1dc718581aac Fix Z80 interrupts in Gen/MD mode when using new core. Disable CPU debug log in new Z80 core
Michael Pavone <pavone@retrodev.com>
parents: 1753
diff changeset
469 if (z_context->int_cycle == 0xFFFFFFFFU) {
1dc718581aac Fix Z80 interrupts in Gen/MD mode when using new core. Disable CPU debug log in new Z80 core
Michael Pavone <pavone@retrodev.com>
parents: 1753
diff changeset
470 z80_next_int_pulse(z_context);
1dc718581aac Fix Z80 interrupts in Gen/MD mode when using new core. Disable CPU debug log in new Z80 core
Michael Pavone <pavone@retrodev.com>
parents: 1753
diff changeset
471 }
1753
33ec5df77fac Integration of new Z80 core is sort of working now
Michael Pavone <pavone@retrodev.com>
parents: 1752
diff changeset
472 #endif
2184
408fb8a7e990 Implement argumentless variant of z80 debugger command
Michael Pavone <pavone@retrodev.com>
parents: 2179
diff changeset
473 if (gen->enter_z80_debugger && !z_context->reset && !z_context->busack) {
408fb8a7e990 Implement argumentless variant of z80 debugger command
Michael Pavone <pavone@retrodev.com>
parents: 2179
diff changeset
474 while (!z_context->pc) {
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
475 z80_run(z_context, z_context->Z80_CYCLE + 4);
2184
408fb8a7e990 Implement argumentless variant of z80 debugger command
Michael Pavone <pavone@retrodev.com>
parents: 2179
diff changeset
476 }
408fb8a7e990 Implement argumentless variant of z80 debugger command
Michael Pavone <pavone@retrodev.com>
parents: 2179
diff changeset
477 gen->enter_z80_debugger = 0;
2302
0343f0d5add0 Fix libretro build for real
Michael Pavone <pavone@retrodev.com>
parents: 2286
diff changeset
478 #ifndef IS_LIB
2184
408fb8a7e990 Implement argumentless variant of z80 debugger command
Michael Pavone <pavone@retrodev.com>
parents: 2179
diff changeset
479 zdebugger(z_context, z_context->pc);
2302
0343f0d5add0 Fix libretro build for real
Michael Pavone <pavone@retrodev.com>
parents: 2286
diff changeset
480 #endif
2184
408fb8a7e990 Implement argumentless variant of z80 debugger command
Michael Pavone <pavone@retrodev.com>
parents: 2179
diff changeset
481 }
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
482 z80_run(z_context, mclks);
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
483 } else
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
484 #endif
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
485 {
1752
d6d4c006a7b3 Initial attempt at interrupts in new Z80 core and integrating it into main executable
Michael Pavone <pavone@retrodev.com>
parents: 1690
diff changeset
486 z_context->Z80_CYCLE = mclks;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
487 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
488 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
489
1116
fe8c79f82c22 More cleanup in preparation for SMS/Mark III support
Michael Pavone <pavone@retrodev.com>
parents: 1113
diff changeset
490 static void sync_sound(genesis_context * gen, uint32_t target)
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
491 {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
492 //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);
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
493 while (target > gen->psg->cycles && target - gen->psg->cycles > MAX_SOUND_CYCLES) {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
494 uint32_t cur_target = gen->psg->cycles + MAX_SOUND_CYCLES;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
495 //printf("Running PSG to cycle %d\n", cur_target);
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
496 psg_run(gen->psg, cur_target);
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
497 //printf("Running YM-2612 to cycle %d\n", cur_target);
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
498 ym_run(gen->ym, cur_target);
2080
bafb757e1cd2 Implement CD audio
Michael Pavone <pavone@retrodev.com>
parents: 2054
diff changeset
499 if (gen->expansion) {
bafb757e1cd2 Implement CD audio
Michael Pavone <pavone@retrodev.com>
parents: 2054
diff changeset
500 scd_run(gen->expansion, gen_cycle_to_scd(cur_target, gen));
bafb757e1cd2 Implement CD audio
Michael Pavone <pavone@retrodev.com>
parents: 2054
diff changeset
501 }
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
502 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
503 psg_run(gen->psg, target);
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
504 ym_run(gen->ym, target);
2080
bafb757e1cd2 Implement CD audio
Michael Pavone <pavone@retrodev.com>
parents: 2054
diff changeset
505 if (gen->expansion) {
bafb757e1cd2 Implement CD audio
Michael Pavone <pavone@retrodev.com>
parents: 2054
diff changeset
506 scd_run(gen->expansion, gen_cycle_to_scd(target, gen));
bafb757e1cd2 Implement CD audio
Michael Pavone <pavone@retrodev.com>
parents: 2054
diff changeset
507 }
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
508
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
509 //printf("Target: %d, YM bufferpos: %d, PSG bufferpos: %d\n", target, gen->ym->buffer_pos, gen->psg->buffer_pos * 2);
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
510 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
511
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
512 #define REFRESH_INTERVAL 128
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
513 #define REFRESH_DELAY 2
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
514
2350
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
515 void gen_update_refresh(m68k_context *context)
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
516 {
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
517 uint32_t interval = MCLKS_PER_68K * REFRESH_INTERVAL;
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
518 genesis_context *gen = context->system;
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
519 gen->refresh_counter += context->cycles - gen->last_sync_cycle;
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
520 gen->last_sync_cycle = context->cycles;
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
521 context->cycles += REFRESH_DELAY * MCLKS_PER_68K * (gen->refresh_counter / interval);
2350
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
522 gen->refresh_counter = gen->refresh_counter % interval;
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
523 }
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
524
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
525 void gen_update_refresh_free_access(m68k_context *context)
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
526 {
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
527 genesis_context *gen = context->system;
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
528 uint32_t before = context->cycles - 4*MCLKS_PER_68K;
2350
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
529 if (before < gen->last_sync_cycle) {
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
530 return;
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
531 }
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
532 //Add refresh delays for any accesses that happened beofre the current one
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
533 gen->refresh_counter += before - gen->last_sync_cycle;
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
534 uint32_t interval = MCLKS_PER_68K * REFRESH_INTERVAL;
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
535 uint32_t delay = REFRESH_DELAY * MCLKS_PER_68K * (gen->refresh_counter / interval);
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
536 if (delay) {
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
537 //To avoid the extra cycles being absorbed in the refresh free update below, we need to update again
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
538 gen->refresh_counter = gen->refresh_counter % interval;
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
539 gen->refresh_counter += delay;
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
540 delay += REFRESH_DELAY * MCLKS_PER_68K * (gen->refresh_counter / interval);
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
541 context->cycles += delay;
2350
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
542 }
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
543 gen->last_sync_cycle = context->cycles;
2350
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
544 //advance refresh counter for the current access, but don't generate delays
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
545 gen->refresh_counter += 4*MCLKS_PER_68K;
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
546 gen->refresh_counter = gen->refresh_counter % interval;
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
547 }
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
548
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
549 void gen_update_refresh_no_wait(m68k_context *context)
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
550 {
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
551 uint32_t interval = MCLKS_PER_68K * REFRESH_INTERVAL;
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
552 genesis_context *gen = context->system;
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
553 gen->refresh_counter += context->cycles - gen->last_sync_cycle;
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
554 gen->last_sync_cycle = context->cycles;
2350
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
555 gen->refresh_counter = gen->refresh_counter % interval;
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
556 }
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
557
1170
9170fc4d9835 Don't adjust cycles every frame. Only when we start getting close to UINT_MAX. Don't adjust all the way down to zero when we do adjust. Shouldn't fix anything, but may make debugging current issues easier.
Michael Pavone <pavone@retrodev.com>
parents: 1165
diff changeset
558 #include <limits.h>
9170fc4d9835 Don't adjust cycles every frame. Only when we start getting close to UINT_MAX. Don't adjust all the way down to zero when we do adjust. Shouldn't fix anything, but may make debugging current issues easier.
Michael Pavone <pavone@retrodev.com>
parents: 1165
diff changeset
559 #define ADJUST_BUFFER (8*MCLKS_LINE*313)
9170fc4d9835 Don't adjust cycles every frame. Only when we start getting close to UINT_MAX. Don't adjust all the way down to zero when we do adjust. Shouldn't fix anything, but may make debugging current issues easier.
Michael Pavone <pavone@retrodev.com>
parents: 1165
diff changeset
560 #define MAX_NO_ADJUST (UINT_MAX-ADJUST_BUFFER)
9170fc4d9835 Don't adjust cycles every frame. Only when we start getting close to UINT_MAX. Don't adjust all the way down to zero when we do adjust. Shouldn't fix anything, but may make debugging current issues easier.
Michael Pavone <pavone@retrodev.com>
parents: 1165
diff changeset
561
2054
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
562 static m68k_context *sync_components(m68k_context * context, uint32_t address)
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
563 {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
564 genesis_context * gen = context->system;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
565 vdp_context * v_context = gen->vdp;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
566 z80_context * z_context = gen->z80;
2350
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
567 if (gen->bus_busy) {
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
568 gen_update_refresh_no_wait(context);
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
569 } else {
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
570 gen_update_refresh(context);
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
571 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
572
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
573 uint32_t mclks = context->cycles;
2184
408fb8a7e990 Implement argumentless variant of z80 debugger command
Michael Pavone <pavone@retrodev.com>
parents: 2179
diff changeset
574 sync_z80(gen, mclks);
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
575 sync_sound(gen, mclks);
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
576 vdp_run_context(v_context, mclks);
2025
e7a516f08cec Implement serial IO, a generic serial device type and external interrupts
Michael Pavone <pavone@retrodev.com>
parents: 2021
diff changeset
577 io_run(gen->io.ports, mclks);
e7a516f08cec Implement serial IO, a generic serial device type and external interrupts
Michael Pavone <pavone@retrodev.com>
parents: 2021
diff changeset
578 io_run(gen->io.ports + 1, mclks);
e7a516f08cec Implement serial IO, a generic serial device type and external interrupts
Michael Pavone <pavone@retrodev.com>
parents: 2021
diff changeset
579 io_run(gen->io.ports + 2, mclks);
2054
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
580 if (gen->expansion) {
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
581 scd_run(gen->expansion, gen_cycle_to_scd(mclks, gen));
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
582 }
1556
075df0844baa Randomize soft reset timing and fix silly bug that was accidentally clearing IO state on soft reset
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
583 if (mclks >= gen->reset_cycle) {
075df0844baa Randomize soft reset timing and fix silly bug that was accidentally clearing IO state on soft reset
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
584 gen->reset_requested = 1;
075df0844baa Randomize soft reset timing and fix silly bug that was accidentally clearing IO state on soft reset
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
585 context->should_return = 1;
075df0844baa Randomize soft reset timing and fix silly bug that was accidentally clearing IO state on soft reset
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
586 gen->reset_cycle = CYCLE_NEVER;
075df0844baa Randomize soft reset timing and fix silly bug that was accidentally clearing IO state on soft reset
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
587 }
1971
80920c21bb52 Add an event log soft flush and call it twice per frame in between hard flushes to netplay latency when there are insufficient hardware updates to flush packets in the middle of a frame
Michael Pavone <pavone@retrodev.com>
parents: 1954
diff changeset
588 if (v_context->frame != gen->last_frame) {
2302
0343f0d5add0 Fix libretro build for real
Michael Pavone <pavone@retrodev.com>
parents: 2286
diff changeset
589 #ifndef IS_LIB
2243
0d1d5dccdd28 Initial implementation of oscilloscope debug view
Michael Pavone <pavone@retrodev.com>
parents: 2228
diff changeset
590 if (gen->ym->scope) {
0d1d5dccdd28 Initial implementation of oscilloscope debug view
Michael Pavone <pavone@retrodev.com>
parents: 2228
diff changeset
591 scope_render(gen->ym->scope);
0d1d5dccdd28 Initial implementation of oscilloscope debug view
Michael Pavone <pavone@retrodev.com>
parents: 2228
diff changeset
592 }
2302
0343f0d5add0 Fix libretro build for real
Michael Pavone <pavone@retrodev.com>
parents: 2286
diff changeset
593 #endif
1971
80920c21bb52 Add an event log soft flush and call it twice per frame in between hard flushes to netplay latency when there are insufficient hardware updates to flush packets in the middle of a frame
Michael Pavone <pavone@retrodev.com>
parents: 1954
diff changeset
594 //printf("reached frame end %d | MCLK Cycles: %d, Target: %d, VDP cycles: %d, vcounter: %d, hslot: %d\n", gen->last_frame, mclks, gen->frame_end, v_context->cycles, v_context->vcounter, v_context->hslot);
2179
9a8dd4ba2753 Implement frame advance debugger command
Michael Pavone <pavone@retrodev.com>
parents: 2164
diff changeset
595 uint32_t elapsed = v_context->frame - gen->last_frame;
1971
80920c21bb52 Add an event log soft flush and call it twice per frame in between hard flushes to netplay latency when there are insufficient hardware updates to flush packets in the middle of a frame
Michael Pavone <pavone@retrodev.com>
parents: 1954
diff changeset
596 gen->last_frame = v_context->frame;
80920c21bb52 Add an event log soft flush and call it twice per frame in between hard flushes to netplay latency when there are insufficient hardware updates to flush packets in the middle of a frame
Michael Pavone <pavone@retrodev.com>
parents: 1954
diff changeset
597 event_flush(mclks);
80920c21bb52 Add an event log soft flush and call it twice per frame in between hard flushes to netplay latency when there are insufficient hardware updates to flush packets in the middle of a frame
Michael Pavone <pavone@retrodev.com>
parents: 1954
diff changeset
598 gen->last_flush_cycle = mclks;
2179
9a8dd4ba2753 Implement frame advance debugger command
Michael Pavone <pavone@retrodev.com>
parents: 2164
diff changeset
599 if (gen->header.enter_debugger_frames) {
9a8dd4ba2753 Implement frame advance debugger command
Michael Pavone <pavone@retrodev.com>
parents: 2164
diff changeset
600 if (elapsed >= gen->header.enter_debugger_frames) {
9a8dd4ba2753 Implement frame advance debugger command
Michael Pavone <pavone@retrodev.com>
parents: 2164
diff changeset
601 gen->header.enter_debugger_frames = 0;
9a8dd4ba2753 Implement frame advance debugger command
Michael Pavone <pavone@retrodev.com>
parents: 2164
diff changeset
602 gen->header.enter_debugger = 1;
9a8dd4ba2753 Implement frame advance debugger command
Michael Pavone <pavone@retrodev.com>
parents: 2164
diff changeset
603 } else {
9a8dd4ba2753 Implement frame advance debugger command
Michael Pavone <pavone@retrodev.com>
parents: 2164
diff changeset
604 gen->header.enter_debugger_frames -= elapsed;
9a8dd4ba2753 Implement frame advance debugger command
Michael Pavone <pavone@retrodev.com>
parents: 2164
diff changeset
605 }
9a8dd4ba2753 Implement frame advance debugger command
Michael Pavone <pavone@retrodev.com>
parents: 2164
diff changeset
606 }
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
607
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
608 if(exit_after){
2179
9a8dd4ba2753 Implement frame advance debugger command
Michael Pavone <pavone@retrodev.com>
parents: 2164
diff changeset
609 if (elapsed >= exit_after) {
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
610 exit(0);
2179
9a8dd4ba2753 Implement frame advance debugger command
Michael Pavone <pavone@retrodev.com>
parents: 2164
diff changeset
611 } else {
9a8dd4ba2753 Implement frame advance debugger command
Michael Pavone <pavone@retrodev.com>
parents: 2164
diff changeset
612 exit_after -= elapsed;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
613 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
614 }
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
615 if (context->cycles > MAX_NO_ADJUST) {
1170
9170fc4d9835 Don't adjust cycles every frame. Only when we start getting close to UINT_MAX. Don't adjust all the way down to zero when we do adjust. Shouldn't fix anything, but may make debugging current issues easier.
Michael Pavone <pavone@retrodev.com>
parents: 1165
diff changeset
616 uint32_t deduction = mclks - ADJUST_BUFFER;
9170fc4d9835 Don't adjust cycles every frame. Only when we start getting close to UINT_MAX. Don't adjust all the way down to zero when we do adjust. Shouldn't fix anything, but may make debugging current issues easier.
Michael Pavone <pavone@retrodev.com>
parents: 1165
diff changeset
617 vdp_adjust_cycles(v_context, deduction);
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
618 io_adjust_cycles(gen->io.ports, context->cycles, deduction);
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
619 io_adjust_cycles(gen->io.ports+1, context->cycles, deduction);
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
620 io_adjust_cycles(gen->io.ports+2, context->cycles, deduction);
1610
c206a422d466 Added J-Cart support
Michael Pavone <pavone@retrodev.com>
parents: 1595
diff changeset
621 if (gen->mapper_type == MAPPER_JCART) {
c206a422d466 Added J-Cart support
Michael Pavone <pavone@retrodev.com>
parents: 1595
diff changeset
622 jcart_adjust_cycles(gen, deduction);
c206a422d466 Added J-Cart support
Michael Pavone <pavone@retrodev.com>
parents: 1595
diff changeset
623 }
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
624 context->cycles -= deduction;
1170
9170fc4d9835 Don't adjust cycles every frame. Only when we start getting close to UINT_MAX. Don't adjust all the way down to zero when we do adjust. Shouldn't fix anything, but may make debugging current issues easier.
Michael Pavone <pavone@retrodev.com>
parents: 1165
diff changeset
625 z80_adjust_cycles(z_context, deduction);
1902
32a3aa7b4a45 Fix YM2612 busy flag timing
Michael Pavone <pavone@retrodev.com>
parents: 1901
diff changeset
626 ym_adjust_cycles(gen->ym, deduction);
1909
508522f08e4d Initial stab at VGM logging support
Michael Pavone <pavone@retrodev.com>
parents: 1907
diff changeset
627 if (gen->ym->vgm) {
508522f08e4d Initial stab at VGM logging support
Michael Pavone <pavone@retrodev.com>
parents: 1907
diff changeset
628 vgm_adjust_cycles(gen->ym->vgm, deduction);
508522f08e4d Initial stab at VGM logging support
Michael Pavone <pavone@retrodev.com>
parents: 1907
diff changeset
629 }
1170
9170fc4d9835 Don't adjust cycles every frame. Only when we start getting close to UINT_MAX. Don't adjust all the way down to zero when we do adjust. Shouldn't fix anything, but may make debugging current issues easier.
Michael Pavone <pavone@retrodev.com>
parents: 1165
diff changeset
630 gen->psg->cycles -= deduction;
1556
075df0844baa Randomize soft reset timing and fix silly bug that was accidentally clearing IO state on soft reset
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
631 if (gen->reset_cycle != CYCLE_NEVER) {
075df0844baa Randomize soft reset timing and fix silly bug that was accidentally clearing IO state on soft reset
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
632 gen->reset_cycle -= deduction;
075df0844baa Randomize soft reset timing and fix silly bug that was accidentally clearing IO state on soft reset
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
633 }
1946
c3c62dbf1ceb WIP netplay support
Michael Pavone <pavone@retrodev.com>
parents: 1932
diff changeset
634 event_cycle_adjust(mclks, deduction);
2054
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
635 if (gen->expansion) {
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
636 scd_adjust_cycle(gen->expansion, deduction);
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
637 }
1971
80920c21bb52 Add an event log soft flush and call it twice per frame in between hard flushes to netplay latency when there are insufficient hardware updates to flush packets in the middle of a frame
Michael Pavone <pavone@retrodev.com>
parents: 1954
diff changeset
638 gen->last_flush_cycle -= deduction;
2548
3fc8a1f2eb84 Fix regression in Super Hang-On
Michael Pavone <pavone@retrodev.com>
parents: 2524
diff changeset
639 gen->last_sync_cycle -= deduction;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
640 }
1971
80920c21bb52 Add an event log soft flush and call it twice per frame in between hard flushes to netplay latency when there are insufficient hardware updates to flush packets in the middle of a frame
Michael Pavone <pavone@retrodev.com>
parents: 1954
diff changeset
641 } else if (mclks - gen->last_flush_cycle > gen->soft_flush_cycles) {
80920c21bb52 Add an event log soft flush and call it twice per frame in between hard flushes to netplay latency when there are insufficient hardware updates to flush packets in the middle of a frame
Michael Pavone <pavone@retrodev.com>
parents: 1954
diff changeset
642 event_soft_flush(mclks);
80920c21bb52 Add an event log soft flush and call it twice per frame in between hard flushes to netplay latency when there are insufficient hardware updates to flush packets in the middle of a frame
Michael Pavone <pavone@retrodev.com>
parents: 1954
diff changeset
643 gen->last_flush_cycle = mclks;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
644 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
645 gen->frame_end = vdp_cycles_to_frame_end(v_context);
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
646 context->sync_cycle = gen->frame_end;
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
647 //printf("Set sync cycle to: %d @ %d, vcounter: %d, hslot: %d\n", context->sync_cycle, context->cycles, v_context->vcounter, v_context->hslot);
1111
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
648 if (!address && (gen->header.enter_debugger || gen->header.save_state)) {
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
649 context->sync_cycle = context->cycles + 1;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
650 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
651 adjust_int_cycle(context, v_context);
1556
075df0844baa Randomize soft reset timing and fix silly bug that was accidentally clearing IO state on soft reset
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
652 if (gen->reset_cycle < context->target_cycle) {
075df0844baa Randomize soft reset timing and fix silly bug that was accidentally clearing IO state on soft reset
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
653 context->target_cycle = gen->reset_cycle;
075df0844baa Randomize soft reset timing and fix silly bug that was accidentally clearing IO state on soft reset
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
654 }
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
655 if (address) {
2424
767ec72acca7 Avoid conflicts between watchpoints and normal debugger entry
Michael Pavone <pavone@retrodev.com>
parents: 2391
diff changeset
656 if (gen->header.enter_debugger || context->wp_hit) {
767ec72acca7 Avoid conflicts between watchpoints and normal debugger entry
Michael Pavone <pavone@retrodev.com>
parents: 2391
diff changeset
657 if (!context->wp_hit) {
767ec72acca7 Avoid conflicts between watchpoints and normal debugger entry
Michael Pavone <pavone@retrodev.com>
parents: 2391
diff changeset
658 gen->header.enter_debugger = 0;
767ec72acca7 Avoid conflicts between watchpoints and normal debugger entry
Michael Pavone <pavone@retrodev.com>
parents: 2391
diff changeset
659 }
2302
0343f0d5add0 Fix libretro build for real
Michael Pavone <pavone@retrodev.com>
parents: 2286
diff changeset
660 #ifndef IS_LIB
2033
894bf99a13f1 Make ui.enter_debuger respect which debuger is active
Michael Pavone <pavone@retrodev.com>
parents: 2025
diff changeset
661 if (gen->header.debugger_type == DEBUGGER_NATIVE) {
894bf99a13f1 Make ui.enter_debuger respect which debuger is active
Michael Pavone <pavone@retrodev.com>
parents: 2025
diff changeset
662 debugger(context, address);
894bf99a13f1 Make ui.enter_debuger respect which debuger is active
Michael Pavone <pavone@retrodev.com>
parents: 2025
diff changeset
663 } else {
894bf99a13f1 Make ui.enter_debuger respect which debuger is active
Michael Pavone <pavone@retrodev.com>
parents: 2025
diff changeset
664 gdb_debug_enter(context, address);
894bf99a13f1 Make ui.enter_debuger respect which debuger is active
Michael Pavone <pavone@retrodev.com>
parents: 2025
diff changeset
665 }
2302
0343f0d5add0 Fix libretro build for real
Michael Pavone <pavone@retrodev.com>
parents: 2286
diff changeset
666 #endif
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
667 }
1752
d6d4c006a7b3 Initial attempt at interrupts in new Z80 core and integrating it into main executable
Michael Pavone <pavone@retrodev.com>
parents: 1690
diff changeset
668 #ifdef NEW_CORE
d6d4c006a7b3 Initial attempt at interrupts in new Z80 core and integrating it into main executable
Michael Pavone <pavone@retrodev.com>
parents: 1690
diff changeset
669 if (gen->header.save_state) {
d6d4c006a7b3 Initial attempt at interrupts in new Z80 core and integrating it into main executable
Michael Pavone <pavone@retrodev.com>
parents: 1690
diff changeset
670 #else
1440
7d4483944d4d Allow actually saving a save state in more Z80 states. Save busreq/reset state in bus arbiter section for "native" save states
Michael Pavone <pavone@retrodev.com>
parents: 1433
diff changeset
671 if (gen->header.save_state && (z_context->pc || !z_context->native_pc || z_context->reset || !z_context->busreq)) {
1752
d6d4c006a7b3 Initial attempt at interrupts in new Z80 core and integrating it into main executable
Michael Pavone <pavone@retrodev.com>
parents: 1690
diff changeset
672 #endif
1111
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
673 uint8_t slot = gen->header.save_state - 1;
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
674 gen->header.save_state = 0;
1752
d6d4c006a7b3 Initial attempt at interrupts in new Z80 core and integrating it into main executable
Michael Pavone <pavone@retrodev.com>
parents: 1690
diff changeset
675 #ifndef NEW_CORE
1440
7d4483944d4d Allow actually saving a save state in more Z80 states. Save busreq/reset state in bus arbiter section for "native" save states
Michael Pavone <pavone@retrodev.com>
parents: 1433
diff changeset
676 if (z_context->native_pc && !z_context->reset) {
7d4483944d4d Allow actually saving a save state in more Z80 states. Save busreq/reset state in bus arbiter section for "native" save states
Michael Pavone <pavone@retrodev.com>
parents: 1433
diff changeset
677 //advance Z80 core to the start of an instruction
7d4483944d4d Allow actually saving a save state in more Z80 states. Save busreq/reset state in bus arbiter section for "native" save states
Michael Pavone <pavone@retrodev.com>
parents: 1433
diff changeset
678 while (!z_context->pc)
7d4483944d4d Allow actually saving a save state in more Z80 states. Save busreq/reset state in bus arbiter section for "native" save states
Michael Pavone <pavone@retrodev.com>
parents: 1433
diff changeset
679 {
2184
408fb8a7e990 Implement argumentless variant of z80 debugger command
Michael Pavone <pavone@retrodev.com>
parents: 2179
diff changeset
680 sync_z80(gen, z_context->current_cycle + MCLKS_PER_Z80);
1440
7d4483944d4d Allow actually saving a save state in more Z80 states. Save busreq/reset state in bus arbiter section for "native" save states
Michael Pavone <pavone@retrodev.com>
parents: 1433
diff changeset
681 }
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
682 }
1752
d6d4c006a7b3 Initial attempt at interrupts in new Z80 core and integrating it into main executable
Michael Pavone <pavone@retrodev.com>
parents: 1690
diff changeset
683 #endif
1946
c3c62dbf1ceb WIP netplay support
Michael Pavone <pavone@retrodev.com>
parents: 1932
diff changeset
684 char *save_path = slot >= SERIALIZE_SLOT ? NULL : get_slot_name(&gen->header, slot, use_native_states ? "state" : "gst");
c3c62dbf1ceb WIP netplay support
Michael Pavone <pavone@retrodev.com>
parents: 1932
diff changeset
685 if (use_native_states || slot >= SERIALIZE_SLOT) {
1428
2540c05520f2 New savestates are working. New config file option for selecting format states will be saved in. Mostly complete, needs a little more work before release
Michael Pavone <pavone@retrodev.com>
parents: 1427
diff changeset
686 serialize_buffer state;
2540c05520f2 New savestates are working. New config file option for selecting format states will be saved in. Mostly complete, needs a little more work before release
Michael Pavone <pavone@retrodev.com>
parents: 1427
diff changeset
687 init_serialize(&state);
1946
c3c62dbf1ceb WIP netplay support
Michael Pavone <pavone@retrodev.com>
parents: 1932
diff changeset
688 genesis_serialize(gen, &state, address, slot != EVENTLOG_SLOT);
1690
319d90025d50 Implement serialization/deserialization in libretro build
Mike Pavone <pavone@retrodev.com>
parents: 1688
diff changeset
689 if (slot == SERIALIZE_SLOT) {
319d90025d50 Implement serialization/deserialization in libretro build
Mike Pavone <pavone@retrodev.com>
parents: 1688
diff changeset
690 gen->serialize_tmp = state.data;
319d90025d50 Implement serialization/deserialization in libretro build
Mike Pavone <pavone@retrodev.com>
parents: 1688
diff changeset
691 gen->serialize_size = state.size;
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
692 context->sync_cycle = context->cycles;
1690
319d90025d50 Implement serialization/deserialization in libretro build
Mike Pavone <pavone@retrodev.com>
parents: 1688
diff changeset
693 context->should_return = 1;
1946
c3c62dbf1ceb WIP netplay support
Michael Pavone <pavone@retrodev.com>
parents: 1932
diff changeset
694 } else if (slot == EVENTLOG_SLOT) {
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
695 event_state(context->cycles, &state);
1690
319d90025d50 Implement serialization/deserialization in libretro build
Mike Pavone <pavone@retrodev.com>
parents: 1688
diff changeset
696 } else {
319d90025d50 Implement serialization/deserialization in libretro build
Mike Pavone <pavone@retrodev.com>
parents: 1688
diff changeset
697 save_to_file(&state, save_path);
319d90025d50 Implement serialization/deserialization in libretro build
Mike Pavone <pavone@retrodev.com>
parents: 1688
diff changeset
698 free(state.data);
319d90025d50 Implement serialization/deserialization in libretro build
Mike Pavone <pavone@retrodev.com>
parents: 1688
diff changeset
699 }
1428
2540c05520f2 New savestates are working. New config file option for selecting format states will be saved in. Mostly complete, needs a little more work before release
Michael Pavone <pavone@retrodev.com>
parents: 1427
diff changeset
700 } else {
2540c05520f2 New savestates are working. New config file option for selecting format states will be saved in. Mostly complete, needs a little more work before release
Michael Pavone <pavone@retrodev.com>
parents: 1427
diff changeset
701 save_gst(gen, save_path, address);
2540c05520f2 New savestates are working. New config file option for selecting format states will be saved in. Mostly complete, needs a little more work before release
Michael Pavone <pavone@retrodev.com>
parents: 1427
diff changeset
702 }
1849
6b5147f08846 Don't print out a message when saving a state to the serialization pseudo-slot
Michael Pavone <pavone@retrodev.com>
parents: 1848
diff changeset
703 if (slot != SERIALIZE_SLOT) {
6b5147f08846 Don't print out a message when saving a state to the serialization pseudo-slot
Michael Pavone <pavone@retrodev.com>
parents: 1848
diff changeset
704 debug_message("Saved state to %s\n", save_path);
6b5147f08846 Don't print out a message when saving a state to the serialization pseudo-slot
Michael Pavone <pavone@retrodev.com>
parents: 1848
diff changeset
705 }
1478
da1dce39e846 Refactored save slot related logic to reduce duplication and allow reuse in new UI. Get state loading/saving mostly working in new UI
Michael Pavone <pavone@retrodev.com>
parents: 1471
diff changeset
706 free(save_path);
1111
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
707 } else if(gen->header.save_state) {
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
708 context->sync_cycle = context->cycles + 1;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
709 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
710 }
2577
5f725429d08f WIP changes to new CPU core for rotate instructions and to get interrupts more functional
Michael Pavone <pavone@retrodev.com>
parents: 2571
diff changeset
711 #ifdef NEW_CORE
5f725429d08f WIP changes to new CPU core for rotate instructions and to get interrupts more functional
Michael Pavone <pavone@retrodev.com>
parents: 2571
diff changeset
712 if (context->target_cycle == context->cycles) {
5f725429d08f WIP changes to new CPU core for rotate instructions and to get interrupts more functional
Michael Pavone <pavone@retrodev.com>
parents: 2571
diff changeset
713 context->target_cycle++;
5f725429d08f WIP changes to new CPU core for rotate instructions and to get interrupts more functional
Michael Pavone <pavone@retrodev.com>
parents: 2571
diff changeset
714 }
5f725429d08f WIP changes to new CPU core for rotate instructions and to get interrupts more functional
Michael Pavone <pavone@retrodev.com>
parents: 2571
diff changeset
715 #endif
2350
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
716 return context;
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
717 }
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
718
2431
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
719 static void sync_sound_pico(genesis_context * gen, uint32_t target)
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
720 {
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
721 while (target > gen->psg->cycles && target - gen->psg->cycles > MAX_SOUND_CYCLES)
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
722 {
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
723 uint32_t cur_target = gen->psg->cycles + MAX_SOUND_CYCLES;
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
724 psg_run(gen->psg, cur_target);
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
725 pico_pcm_run(gen->adpcm, cur_target);
2460
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
726 if (gen->ymz) {
2558
3f58fec775df Initial work on YMF262 (aka OPL3) emulation
Michael Pavone <pavone@retrodev.com>
parents: 2556
diff changeset
727 //FIXME: These have a separate crystal
2460
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
728 ymz263b_run(gen->ymz, cur_target);
2558
3f58fec775df Initial work on YMF262 (aka OPL3) emulation
Michael Pavone <pavone@retrodev.com>
parents: 2556
diff changeset
729 ymf262_run(gen->opl, cur_target);
2460
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
730 }
2431
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
731 }
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
732 psg_run(gen->psg, target);
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
733 pico_pcm_run(gen->adpcm, target);
2460
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
734 if (gen->ymz) {
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
735 ymz263b_run(gen->ymz, target);
2558
3f58fec775df Initial work on YMF262 (aka OPL3) emulation
Michael Pavone <pavone@retrodev.com>
parents: 2556
diff changeset
736 ymf262_run(gen->opl, target);
2460
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
737 }
2431
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
738 }
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
739
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
740 static void adjust_int_cycle_pico(m68k_context *context, vdp_context *v_context)
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
741 {
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
742 genesis_context *gen = context->system;
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
743 if (context->sync_cycle - context->cycles > gen->max_cycles) {
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
744 context->sync_cycle = context->cycles + gen->max_cycles;
2431
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
745 }
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
746 context->int_cycle = CYCLE_NEVER;
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
747 uint8_t mask = context->status & 0x7;
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
748 if (mask < 6) {
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
749 uint32_t next_vint = vdp_next_vint(v_context);
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
750 if (next_vint != CYCLE_NEVER) {
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
751 context->int_cycle = next_vint;
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
752 context->int_num = 6;
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
753 }
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
754 if (mask < 5) {
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
755 uint32_t next_hint = vdp_next_hint(v_context);
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
756 if (next_hint != CYCLE_NEVER) {
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
757 next_hint = next_hint < context->cycles ? context->cycles : next_hint;
2431
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
758 if (next_hint < context->int_cycle) {
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
759 context->int_cycle = next_hint;
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
760 context->int_num = 5;
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
761
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
762 }
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
763 }
2460
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
764 if (mask < 4) {
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
765 if (v_context->regs[REG_MODE_3] & BIT_EINT_EN) {
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
766 uint32_t next_eint_port0 = io_next_interrupt(gen->io.ports, context->cycles);
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
767 uint32_t next_eint_port1 = io_next_interrupt(gen->io.ports + 1, context->cycles);
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
768 uint32_t next_eint_port2 = io_next_interrupt(gen->io.ports + 2, context->cycles);
2431
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
769 uint32_t next_eint = next_eint_port0 < next_eint_port1
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
770 ? (next_eint_port0 < next_eint_port2 ? next_eint_port0 : next_eint_port2)
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
771 : (next_eint_port1 < next_eint_port2 ? next_eint_port1 : next_eint_port2);
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
772 if (next_eint != CYCLE_NEVER) {
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
773 next_eint = next_eint < context->cycles ? context->cycles : next_eint;
2431
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
774 if (next_eint < context->int_cycle) {
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
775 context->int_cycle = next_eint;
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
776 context->int_num = 2;
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
777 }
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
778 }
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
779 }
2460
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
780 if (mask < 3) {
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
781 uint32_t next_pcm_int = pico_pcm_next_int(gen->adpcm);
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
782 if (next_pcm_int != CYCLE_NEVER && next_pcm_int < context->int_cycle) {
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
783 context->int_cycle = next_pcm_int;
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
784 context->int_num = 3;
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
785 }
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
786
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
787 if (mask < 2 && gen->ymz) {
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
788 uint32_t ymz_int = ymz263b_next_int(gen->ymz);
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
789 if (ymz_int < context->int_cycle) {
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
790 context->int_cycle = ymz_int;
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
791 context->int_num = 2;
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
792 }
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
793 }
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
794 }
2431
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
795 }
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
796 }
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
797 }
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
798 if (context->int_cycle > context->cycles && context->int_pending == INT_PENDING_SR_CHANGE) {
2431
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
799 context->int_pending = INT_PENDING_NONE;
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
800 }
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
801 /*if (context->int_cycle != old_int_cycle) {
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
802 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->cycles, v_context->frame, v_context->vcounter, v_context->hslot, context->status & 0x7, v_context->hint_counter);
2431
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
803 old_int_cycle = context->int_cycle;
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
804 }*/
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
805
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
806 if (context->status & M68K_STATUS_TRACE || context->trace_pending) {
2673
2c8f541af3c5 Get Pico games running with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2654
diff changeset
807 context->target_cycle = context->cycles + 1;
2431
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
808 return;
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
809 }
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
810
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
811 context->target_cycle = context->int_cycle < context->sync_cycle ? context->int_cycle : context->sync_cycle;
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
812 if (context->should_return || gen->header.enter_debugger || context->wp_hit) {
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
813 context->target_cycle = context->cycles;
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
814 } else if (context->target_cycle < context->cycles) {
2431
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
815 //Changes to SR can result in an interrupt cycle that's in the past
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
816 //This can cause issues with the implementation of STOP though
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
817 context->target_cycle = context->cycles;
2431
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
818 }
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
819 if (context->target_cycle == context->int_cycle) {
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
820 //Currently delays from Z80 access and refresh are applied only when we sync
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
821 //this can cause extra latency when it comes to interrupts
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
822 //to prevent this code forces some extra synchronization in the period immediately before an interrupt
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
823 if ((context->target_cycle - context->cycles) > gen->int_latency_prev1) {
2431
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
824 context->target_cycle = context->sync_cycle = context->int_cycle - gen->int_latency_prev1;
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
825 } else if ((context->target_cycle - context->cycles) > gen->int_latency_prev2) {
2431
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
826 context->target_cycle = context->sync_cycle = context->int_cycle - gen->int_latency_prev2;
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
827 } else {
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
828 context->target_cycle = context->sync_cycle = context->cycles;
2431
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
829 }
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
830
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
831 }
2673
2c8f541af3c5 Get Pico games running with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2654
diff changeset
832 #ifdef NEW_CORE
2c8f541af3c5 Get Pico games running with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2654
diff changeset
833 if (context->target_cycle == context->cycles) {
2c8f541af3c5 Get Pico games running with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2654
diff changeset
834 context->target_cycle++;
2c8f541af3c5 Get Pico games running with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2654
diff changeset
835 }
2c8f541af3c5 Get Pico games running with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2654
diff changeset
836 #endif
2431
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
837 }
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
838
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
839 static m68k_context* sync_components_pico(m68k_context * context, uint32_t address)
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
840 {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
841 genesis_context * gen = context->system;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
842 vdp_context * v_context = gen->vdp;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
843 if (gen->bus_busy) {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
844 gen_update_refresh_no_wait(context);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
845 } else {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
846 gen_update_refresh(context);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
847 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
848
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
849 uint32_t mclks = context->cycles;
2431
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
850 sync_sound_pico(gen, mclks);
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
851 vdp_run_context(v_context, mclks);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
852 if (mclks >= gen->reset_cycle) {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
853 gen->reset_requested = 1;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
854 context->should_return = 1;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
855 gen->reset_cycle = CYCLE_NEVER;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
856 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
857 if (v_context->frame != gen->last_frame) {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
858 #ifndef IS_LIB
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
859 if (gen->psg->scope) {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
860 scope_render(gen->psg->scope);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
861 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
862 #endif
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
863 //printf("reached frame end %d | MCLK Cycles: %d, Target: %d, VDP cycles: %d, vcounter: %d, hslot: %d\n", gen->last_frame, mclks, gen->frame_end, v_context->cycles, v_context->vcounter, v_context->hslot);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
864 uint32_t elapsed = v_context->frame - gen->last_frame;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
865 gen->last_frame = v_context->frame;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
866 event_flush(mclks);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
867 gen->last_flush_cycle = mclks;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
868 if (gen->header.enter_debugger_frames) {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
869 if (elapsed >= gen->header.enter_debugger_frames) {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
870 gen->header.enter_debugger_frames = 0;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
871 gen->header.enter_debugger = 1;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
872 } else {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
873 gen->header.enter_debugger_frames -= elapsed;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
874 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
875 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
876
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
877 if(exit_after){
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
878 if (elapsed >= exit_after) {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
879 exit(0);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
880 } else {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
881 exit_after -= elapsed;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
882 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
883 }
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
884 if (context->cycles > MAX_NO_ADJUST) {
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
885 uint32_t deduction = mclks - ADJUST_BUFFER;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
886 vdp_adjust_cycles(v_context, deduction);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
887 if (gen->mapper_type == MAPPER_JCART) {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
888 jcart_adjust_cycles(gen, deduction);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
889 }
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
890 context->cycles -= deduction;
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
891 if (gen->psg->vgm) {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
892 vgm_adjust_cycles(gen->psg->vgm, deduction);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
893 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
894 gen->psg->cycles -= deduction;
2431
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
895 gen->adpcm->cycle -= deduction;
2460
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
896 if (gen->ymz) {
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
897 gen->ymz->cycle -= deduction;
2558
3f58fec775df Initial work on YMF262 (aka OPL3) emulation
Michael Pavone <pavone@retrodev.com>
parents: 2556
diff changeset
898 ymf262_adjust_cycles(gen->opl, deduction);
2460
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
899 }
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
900 if (gen->reset_cycle != CYCLE_NEVER) {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
901 gen->reset_cycle -= deduction;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
902 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
903 event_cycle_adjust(mclks, deduction);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
904 if (gen->expansion) {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
905 scd_adjust_cycle(gen->expansion, deduction);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
906 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
907 gen->last_flush_cycle -= deduction;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
908 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
909 } else if (mclks - gen->last_flush_cycle > gen->soft_flush_cycles) {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
910 event_soft_flush(mclks);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
911 gen->last_flush_cycle = mclks;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
912 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
913 gen->frame_end = vdp_cycles_to_frame_end(v_context);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
914 context->sync_cycle = gen->frame_end;
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
915 //printf("Set sync cycle to: %d @ %d, vcounter: %d, hslot: %d\n", context->sync_cycle, context->cycles, v_context->vcounter, v_context->hslot);
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
916 if (!address && (gen->header.enter_debugger || gen->header.save_state)) {
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
917 context->sync_cycle = context->cycles + 1;
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
918 }
2431
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
919 adjust_int_cycle_pico(context, v_context);
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
920 if (gen->reset_cycle < context->target_cycle) {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
921 context->target_cycle = gen->reset_cycle;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
922 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
923 if (address) {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
924 if (gen->header.enter_debugger || context->wp_hit) {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
925 if (!context->wp_hit) {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
926 gen->header.enter_debugger = 0;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
927 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
928 #ifndef IS_LIB
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
929 if (gen->header.debugger_type == DEBUGGER_NATIVE) {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
930 debugger(context, address);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
931 } else {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
932 gdb_debug_enter(context, address);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
933 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
934 #endif
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
935 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
936 if (gen->header.save_state) {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
937 uint8_t slot = gen->header.save_state - 1;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
938 gen->header.save_state = 0;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
939 char *save_path = slot >= SERIALIZE_SLOT ? NULL : get_slot_name(&gen->header, slot, use_native_states ? "state" : "gst");
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
940 if (use_native_states || slot >= SERIALIZE_SLOT) {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
941 serialize_buffer state;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
942 init_serialize(&state);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
943 genesis_serialize(gen, &state, address, slot != EVENTLOG_SLOT);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
944 if (slot == SERIALIZE_SLOT) {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
945 gen->serialize_tmp = state.data;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
946 gen->serialize_size = state.size;
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
947 context->sync_cycle = context->cycles;
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
948 context->should_return = 1;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
949 } else if (slot == EVENTLOG_SLOT) {
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
950 event_state(context->cycles, &state);
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
951 } else {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
952 save_to_file(&state, save_path);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
953 free(state.data);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
954 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
955 } else {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
956 save_gst(gen, save_path, address);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
957 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
958 if (slot != SERIALIZE_SLOT) {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
959 debug_message("Saved state to %s\n", save_path);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
960 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
961 free(save_path);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
962 } else if(gen->header.save_state) {
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
963 context->sync_cycle = context->cycles + 1;
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
964 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
965 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
966 return context;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
967 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
968
2350
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
969 static m68k_context *int_ack(m68k_context *context)
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
970 {
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
971 genesis_context * gen = context->system;
2460
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
972 if ((gen->header.type != SYSTEM_PICO && gen->header.type != SYSTEM_COPERA) || context->int_num > 3) {
2431
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
973 vdp_context * v_context = gen->vdp;
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
974 //printf("acknowledging %d @ %d:%d, vcounter: %d, hslot: %d\n", context->int_ack, context->cycles, v_context->cycles, v_context->vcounter, v_context->hslot);
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
975 vdp_run_context(v_context, context->cycles);
2431
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
976 vdp_int_ack(v_context);
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
977 }
2354
a773b8f09292 Remove old refresh hack that is causing VDPFifoTesting to have a failed test
Michael Pavone <pavone@retrodev.com>
parents: 2350
diff changeset
978
2350
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
979 //the Genesis responds to these exclusively with !VPA which means its a slow
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
980 //6800 operation. documentation says these can take between 10 and 19 cycles.
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
981 //actual results measurements seem to suggest it's actually between 9 and 18
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
982 //Base 68K core has added 4 cycles for a normal int ack cycle already
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
983 //We add 5 + the current cycle count (in 68K cycles) mod 10 to simulate the
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
984 //additional variable delay from the use of the 6800 cycle
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
985 uint32_t cycle_count = context->cycles / context->opts->gen.clock_divider;
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
986 context->cycles += 5 + (cycle_count % 10);
2354
a773b8f09292 Remove old refresh hack that is causing VDPFifoTesting to have a failed test
Michael Pavone <pavone@retrodev.com>
parents: 2350
diff changeset
987
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
988 return context;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
989 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
990
1116
fe8c79f82c22 More cleanup in preparation for SMS/Mark III support
Michael Pavone <pavone@retrodev.com>
parents: 1113
diff changeset
991 static m68k_context * vdp_port_write(uint32_t vdp_port, m68k_context * context, uint16_t value)
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
992 {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
993 if (vdp_port & 0x2700E0) {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
994 fatal_error("machine freeze due to write to address %X\n", 0xC00000 | vdp_port);
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
995 }
2037
b0b0c31338c3 Implement TMSS VDP lock
Michael Pavone <pavone@retrodev.com>
parents: 2034
diff changeset
996 genesis_context * gen = context->system;
b0b0c31338c3 Implement TMSS VDP lock
Michael Pavone <pavone@retrodev.com>
parents: 2034
diff changeset
997 if (!gen->vdp_unlocked) {
b0b0c31338c3 Implement TMSS VDP lock
Michael Pavone <pavone@retrodev.com>
parents: 2034
diff changeset
998 fatal_error("machine freeze due to VDP write to %X without TMSS unlock\n", 0xC00000 | vdp_port);
b0b0c31338c3 Implement TMSS VDP lock
Michael Pavone <pavone@retrodev.com>
parents: 2034
diff changeset
999 }
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1000 vdp_port &= 0x1F;
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1001 //printf("vdp_port write: %X, value: %X, cycle: %d\n", vdp_port, value, context->cycles);
2280
9ead0fe69d9b Implement savestate support for Sega CD
Michael Pavone <pavone@retrodev.com>
parents: 2278
diff changeset
1002
1372
d78ef6f4fba2 Attempt at improving refresh emulation
Michael Pavone <pavone@retrodev.com>
parents: 1371
diff changeset
1003 //do refresh check here so we can avoid adding a penalty for a refresh that happens during a VDP access
2350
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
1004 gen_update_refresh_free_access(context);
2280
9ead0fe69d9b Implement savestate support for Sega CD
Michael Pavone <pavone@retrodev.com>
parents: 2278
diff changeset
1005
2459
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1006 if (gen->header.type == SYSTEM_PICO || gen->header.type == SYSTEM_COPERA) {
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1007 sync_components_pico(context, 0);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1008 } else {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1009 sync_components(context, 0);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1010 }
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1011 vdp_context *v_context = gen->vdp;
1374
8f404b1fa572 Go back to resetting the refresh counter after a DMA. Probably not quite correct as it is probably reset on VDP triggered refresh, but this is close enough for now given the general limitations with my refresh code. VDP FIFO Testing seems to be passing 100% reliably again (was occassionally failing still with the last commit)
Michael Pavone <pavone@retrodev.com>
parents: 1373
diff changeset
1012 uint32_t before_cycle = v_context->cycles;
2391
664c3e749428 Restore reset of refresh counter after DMA since its removal caused some regressions
Michael Pavone <pavone@retrodev.com>
parents: 2384
diff changeset
1013 uint8_t did_dma = 0;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1014 if (vdp_port < 0x10) {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1015 int blocked;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1016 if (vdp_port < 4) {
2571
3d14db924e57 DMA fill and copy should not block VDP data or control port writes
Michael Pavone <pavone@retrodev.com>
parents: 2568
diff changeset
1017 vdp_data_port_write(v_context, value);
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1018 } else if(vdp_port < 8) {
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1019 vdp_run_context_full(v_context, context->cycles);
1373
7cfc9d532e34 Fixed regression from VDP sync changes. Direct color DMA demos are now achieving stable sync again
Michael Pavone <pavone@retrodev.com>
parents: 1372
diff changeset
1020 before_cycle = v_context->cycles;
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1021 blocked = vdp_control_port_write(v_context, value, context->cycles);
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1022 if (blocked) {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1023 while (blocked) {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1024 while(v_context->flags & FLAG_DMA_RUN) {
2391
664c3e749428 Restore reset of refresh counter after DMA since its removal caused some regressions
Michael Pavone <pavone@retrodev.com>
parents: 2384
diff changeset
1025 did_dma = 1;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1026 vdp_run_dma_done(v_context, gen->frame_end);
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1027 if (v_context->cycles >= gen->frame_end) {
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1028 uint32_t cycle_diff = v_context->cycles - context->cycles;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1029 uint32_t m68k_cycle_diff = (cycle_diff / MCLKS_PER_68K) * MCLKS_PER_68K;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1030 if (m68k_cycle_diff < cycle_diff) {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1031 m68k_cycle_diff += MCLKS_PER_68K;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1032 }
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1033 context->cycles += m68k_cycle_diff;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1034 gen->bus_busy = 1;
2459
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1035 if (gen->header.type == SYSTEM_PICO || gen->header.type == SYSTEM_COPERA) {
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1036 sync_components_pico(context, 0);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1037 } else {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1038 sync_components(context, 0);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1039 }
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1040 gen->bus_busy = 0;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1041 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1042 }
2052
3748a2a8a4b7 Support Sega mapper without 'SEGA SSF' in header or ROM DB entry and implement a subset of the extended Sega mapper implemented in the Mega Everdrive when 'SEGA SSF' is present
Michael Pavone <pavone@retrodev.com>
parents: 2039
diff changeset
1043
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1044 if (blocked < 0) {
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1045 blocked = vdp_control_port_write(v_context, value, context->cycles);
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1046 } else {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1047 blocked = 0;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1048 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1049 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1050 } else {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1051 context->sync_cycle = gen->frame_end = vdp_cycles_to_frame_end(v_context);
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1052 //printf("Set sync cycle to: %d @ %d, vcounter: %d, hslot: %d\n", context->sync_cycle, context->cycles, v_context->vcounter, v_context->hslot);
2459
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1053 if (gen->header.type == SYSTEM_PICO || gen->header.type == SYSTEM_COPERA) {
2431
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
1054 adjust_int_cycle_pico(context, v_context);
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
1055 } else {
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
1056 adjust_int_cycle(context, v_context);
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
1057 }
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1058 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1059 } else {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1060 fatal_error("Illegal write to HV Counter port %X\n", vdp_port);
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1061 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1062 if (v_context->cycles != before_cycle) {
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1063 //printf("68K paused for %d (%d) cycles at cycle %d (%d) for write\n", v_context->cycles - context->cycles, v_context->cycles - before_cycle, context->cycles, before_cycle);
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1064 uint32_t cycle_diff = v_context->cycles - context->cycles;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1065 uint32_t m68k_cycle_diff = (cycle_diff / MCLKS_PER_68K) * MCLKS_PER_68K;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1066 if (m68k_cycle_diff < cycle_diff) {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1067 m68k_cycle_diff += MCLKS_PER_68K;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1068 }
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1069 context->cycles += m68k_cycle_diff;
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1070 if (gen->header.type == SYSTEM_GENESIS) {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1071 //Lock the Z80 out of the bus until the VDP access is complete
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1072 gen->bus_busy = 1;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1073 sync_z80(gen, v_context->cycles);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1074 gen->bus_busy = 0;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1075 }
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1076 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1077 } else if (vdp_port < 0x18) {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1078 psg_write(gen->psg, value);
2675
dbff641a33df Implement Z80/PSG clock speed test register bit
Michael Pavone <pavone@retrodev.com>
parents: 2673
diff changeset
1079 } else if (vdp_port < 0x1C) {
dbff641a33df Implement Z80/PSG clock speed test register bit
Michael Pavone <pavone@retrodev.com>
parents: 2673
diff changeset
1080 vdp_test_port_select(gen->vdp, value);
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1081 } else {
2675
dbff641a33df Implement Z80/PSG clock speed test register bit
Michael Pavone <pavone@retrodev.com>
parents: 2673
diff changeset
1082 uint8_t old_z80_clock_bit = gen->vdp->test_regs[1] & 1;
1318
bfdd450e7dea Initial work on handling the 128KB VRAM mode bit and some basic prep work for VDP test register support
Michael Pavone <pavone@retrodev.com>
parents: 1316
diff changeset
1083 vdp_test_port_write(gen->vdp, value);
2675
dbff641a33df Implement Z80/PSG clock speed test register bit
Michael Pavone <pavone@retrodev.com>
parents: 2673
diff changeset
1084 uint8_t new_z80_clock_bit = gen->vdp->test_regs[1] & 1;
dbff641a33df Implement Z80/PSG clock speed test register bit
Michael Pavone <pavone@retrodev.com>
parents: 2673
diff changeset
1085 if (old_z80_clock_bit != new_z80_clock_bit) {
dbff641a33df Implement Z80/PSG clock speed test register bit
Michael Pavone <pavone@retrodev.com>
parents: 2673
diff changeset
1086 gen->z80->Z80_OPTS->gen.clock_divider = new_z80_clock_bit ? MCLKS_PER_YM : MCLKS_PER_Z80;
dbff641a33df Implement Z80/PSG clock speed test register bit
Michael Pavone <pavone@retrodev.com>
parents: 2673
diff changeset
1087 gen->psg->clock_inc = new_z80_clock_bit ? MCLKS_PER_YM * 16 : MCLKS_PER_PSG;
dbff641a33df Implement Z80/PSG clock speed test register bit
Michael Pavone <pavone@retrodev.com>
parents: 2673
diff changeset
1088 psg_adjust_master_clock(gen->psg, gen->master_clock);
dbff641a33df Implement Z80/PSG clock speed test register bit
Michael Pavone <pavone@retrodev.com>
parents: 2673
diff changeset
1089 z80_invalidate_code_range(gen->z80, 0, 0x4000);
dbff641a33df Implement Z80/PSG clock speed test register bit
Michael Pavone <pavone@retrodev.com>
parents: 2673
diff changeset
1090 z80_clock_divider_updated(gen->z80->Z80_OPTS);
dbff641a33df Implement Z80/PSG clock speed test register bit
Michael Pavone <pavone@retrodev.com>
parents: 2673
diff changeset
1091 }
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1092 }
2280
9ead0fe69d9b Implement savestate support for Sega CD
Michael Pavone <pavone@retrodev.com>
parents: 2278
diff changeset
1093
2391
664c3e749428 Restore reset of refresh counter after DMA since its removal caused some regressions
Michael Pavone <pavone@retrodev.com>
parents: 2384
diff changeset
1094 if (did_dma) {
664c3e749428 Restore reset of refresh counter after DMA since its removal caused some regressions
Michael Pavone <pavone@retrodev.com>
parents: 2384
diff changeset
1095 gen->refresh_counter = 0;
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1096 gen->last_sync_cycle = context->cycles;
2391
664c3e749428 Restore reset of refresh counter after DMA since its removal caused some regressions
Michael Pavone <pavone@retrodev.com>
parents: 2384
diff changeset
1097 } else {
664c3e749428 Restore reset of refresh counter after DMA since its removal caused some regressions
Michael Pavone <pavone@retrodev.com>
parents: 2384
diff changeset
1098 //refresh may have happened while we were waiting on the VDP,
664c3e749428 Restore reset of refresh counter after DMA since its removal caused some regressions
Michael Pavone <pavone@retrodev.com>
parents: 2384
diff changeset
1099 //so advance refresh_counter but don't add any delays
664c3e749428 Restore reset of refresh counter after DMA since its removal caused some regressions
Michael Pavone <pavone@retrodev.com>
parents: 2384
diff changeset
1100 gen_update_refresh_no_wait(context);
664c3e749428 Restore reset of refresh counter after DMA since its removal caused some regressions
Michael Pavone <pavone@retrodev.com>
parents: 2384
diff changeset
1101 }
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1102 return context;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1103 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1104
1116
fe8c79f82c22 More cleanup in preparation for SMS/Mark III support
Michael Pavone <pavone@retrodev.com>
parents: 1113
diff changeset
1105 static m68k_context * vdp_port_write_b(uint32_t vdp_port, m68k_context * context, uint8_t value)
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1106 {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1107 return vdp_port_write(vdp_port, context, vdp_port < 0x10 ? value | value << 8 : ((vdp_port & 1) ? value : 0));
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1108 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1109
1116
fe8c79f82c22 More cleanup in preparation for SMS/Mark III support
Michael Pavone <pavone@retrodev.com>
parents: 1113
diff changeset
1110 static void * z80_vdp_port_write(uint32_t vdp_port, void * vcontext, uint8_t value)
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1111 {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1112 z80_context * context = vcontext;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1113 genesis_context * gen = context->system;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1114 vdp_port &= 0xFF;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1115 if (vdp_port & 0xE0) {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1116 fatal_error("machine freeze due to write to Z80 address %X\n", 0x7F00 | vdp_port);
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1117 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1118 if (vdp_port < 0x10) {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1119 //These probably won't currently interact well with the 68K accessing the VDP
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1120 if (vdp_port < 4) {
1752
d6d4c006a7b3 Initial attempt at interrupts in new Z80 core and integrating it into main executable
Michael Pavone <pavone@retrodev.com>
parents: 1690
diff changeset
1121 vdp_run_context(gen->vdp, context->Z80_CYCLE);
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1122 vdp_data_port_write(gen->vdp, value << 8 | value);
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1123 } else if (vdp_port < 8) {
1752
d6d4c006a7b3 Initial attempt at interrupts in new Z80 core and integrating it into main executable
Michael Pavone <pavone@retrodev.com>
parents: 1690
diff changeset
1124 vdp_run_context_full(gen->vdp, context->Z80_CYCLE);
2227
eaaf28af3c94 Implement VDP read latency and invalid write delays revealed by Ti_'s instruction timing ROM
Michael Pavone <pavone@retrodev.com>
parents: 2194
diff changeset
1125 vdp_control_port_write(gen->vdp, value << 8 | value, context->Z80_CYCLE);
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1126 } else {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1127 fatal_error("Illegal write to HV Counter port %X\n", vdp_port);
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1128 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1129 } else if (vdp_port < 0x18) {
1752
d6d4c006a7b3 Initial attempt at interrupts in new Z80 core and integrating it into main executable
Michael Pavone <pavone@retrodev.com>
parents: 1690
diff changeset
1130 sync_sound(gen, context->Z80_CYCLE);
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1131 psg_write(gen->psg, value);
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1132 } else {
2327
9dd27530c570 Fix Z80 access to VDP debug register
Michael Pavone <pavone@retrodev.com>
parents: 2302
diff changeset
1133 vdp_test_port_write(gen->vdp, value << 8 | value);
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1134 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1135 return context;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1136 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1137
1116
fe8c79f82c22 More cleanup in preparation for SMS/Mark III support
Michael Pavone <pavone@retrodev.com>
parents: 1113
diff changeset
1138 static uint16_t vdp_port_read(uint32_t vdp_port, m68k_context * context)
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1139 {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1140 if (vdp_port & 0x2700E0) {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1141 fatal_error("machine freeze due to read from address %X\n", 0xC00000 | vdp_port);
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1142 }
2037
b0b0c31338c3 Implement TMSS VDP lock
Michael Pavone <pavone@retrodev.com>
parents: 2034
diff changeset
1143 genesis_context *gen = context->system;
b0b0c31338c3 Implement TMSS VDP lock
Michael Pavone <pavone@retrodev.com>
parents: 2034
diff changeset
1144 if (!gen->vdp_unlocked) {
b0b0c31338c3 Implement TMSS VDP lock
Michael Pavone <pavone@retrodev.com>
parents: 2034
diff changeset
1145 fatal_error("machine freeze due to VDP read from %X without TMSS unlock\n", 0xC00000 | vdp_port);
b0b0c31338c3 Implement TMSS VDP lock
Michael Pavone <pavone@retrodev.com>
parents: 2034
diff changeset
1146 }
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1147 vdp_port &= 0x1F;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1148 uint16_t value;
2280
9ead0fe69d9b Implement savestate support for Sega CD
Michael Pavone <pavone@retrodev.com>
parents: 2278
diff changeset
1149
1372
d78ef6f4fba2 Attempt at improving refresh emulation
Michael Pavone <pavone@retrodev.com>
parents: 1371
diff changeset
1150 //do refresh check here so we can avoid adding a penalty for a refresh that happens during a VDP access
2350
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
1151 gen_update_refresh_free_access(context);
2280
9ead0fe69d9b Implement savestate support for Sega CD
Michael Pavone <pavone@retrodev.com>
parents: 2278
diff changeset
1152
2459
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1153 if (gen->header.type == SYSTEM_PICO || gen->header.type == SYSTEM_COPERA) {
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1154 sync_components_pico(context, 0);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1155 } else {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1156 sync_components(context, 0);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1157 }
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1158 vdp_context * v_context = gen->vdp;
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1159 uint32_t before_cycle = context->cycles;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1160 if (vdp_port < 0x10) {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1161 if (vdp_port < 4) {
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1162 value = vdp_data_port_read(v_context, &context->cycles, MCLKS_PER_68K);
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1163 } else if(vdp_port < 8) {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1164 value = vdp_control_port_read(v_context);
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1165 } else {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1166 value = vdp_hv_counter_read(v_context);
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1167 //printf("HV Counter: %X at cycle %d\n", value, v_context->cycles);
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1168 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1169 } else if (vdp_port < 0x18){
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1170 fatal_error("Illegal read from PSG port %X\n", vdp_port);
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1171 } else {
1869
dc94354eab66 Fix accuracy bugs used by Novedicus to detect BlastEm/Exodus
Michael Pavone <pavone@retrodev.com>
parents: 1849
diff changeset
1172 value = get_open_bus_value(&gen->header);
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1173 }
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1174 if (context->cycles != before_cycle) {
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1175 //printf("68K paused for %d (%d) cycles at cycle %d (%d) for read\n", v_context->cycles - context->cycles, v_context->cycles - before_cycle, context->cycles, before_cycle);
2021
270a4c875e0a Backed out changeset 96971b673f51
Michael Pavone <pavone@retrodev.com>
parents: 2012
diff changeset
1176 //Lock the Z80 out of the bus until the VDP access is complete
270a4c875e0a Backed out changeset 96971b673f51
Michael Pavone <pavone@retrodev.com>
parents: 2012
diff changeset
1177 genesis_context *gen = context->system;
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1178 if (gen->header.type == SYSTEM_GENESIS) {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1179 gen->bus_busy = 1;
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1180 sync_z80(gen, context->cycles);
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1181 gen->bus_busy = 0;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1182 }
2021
270a4c875e0a Backed out changeset 96971b673f51
Michael Pavone <pavone@retrodev.com>
parents: 2012
diff changeset
1183 }
2280
9ead0fe69d9b Implement savestate support for Sega CD
Michael Pavone <pavone@retrodev.com>
parents: 2278
diff changeset
1184
1372
d78ef6f4fba2 Attempt at improving refresh emulation
Michael Pavone <pavone@retrodev.com>
parents: 1371
diff changeset
1185 //refresh may have happened while we were waiting on the VDP,
d78ef6f4fba2 Attempt at improving refresh emulation
Michael Pavone <pavone@retrodev.com>
parents: 1371
diff changeset
1186 //so advance refresh_counter but don't add any delays
2350
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
1187 gen_update_refresh_no_wait(context);
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1188 return value;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1189 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1190
1116
fe8c79f82c22 More cleanup in preparation for SMS/Mark III support
Michael Pavone <pavone@retrodev.com>
parents: 1113
diff changeset
1191 static uint8_t vdp_port_read_b(uint32_t vdp_port, m68k_context * context)
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1192 {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1193 uint16_t value = vdp_port_read(vdp_port, context);
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1194 if (vdp_port & 1) {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1195 return value;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1196 } else {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1197 return value >> 8;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1198 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1199 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1200
1116
fe8c79f82c22 More cleanup in preparation for SMS/Mark III support
Michael Pavone <pavone@retrodev.com>
parents: 1113
diff changeset
1201 static uint8_t z80_vdp_port_read(uint32_t vdp_port, void * vcontext)
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1202 {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1203 z80_context * context = vcontext;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1204 if (vdp_port & 0xE0) {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1205 fatal_error("machine freeze due to read from Z80 address %X\n", 0x7F00 | vdp_port);
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1206 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1207 genesis_context * gen = context->system;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1208 //VDP access goes over the 68K bus like a bank area access
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1209 //typical delay from bus arbitration
1752
d6d4c006a7b3 Initial attempt at interrupts in new Z80 core and integrating it into main executable
Michael Pavone <pavone@retrodev.com>
parents: 1690
diff changeset
1210 context->Z80_CYCLE += 3 * MCLKS_PER_Z80;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1211 //TODO: add cycle for an access right after a previous one
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1212 //TODO: Below cycle time is an estimate based on the time between 68K !BG goes low and Z80 !MREQ goes high
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1213 // Needs a new logic analyzer capture to get the actual delay on the 68K side
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1214 gen->m68k->cycles += 8 * MCLKS_PER_68K;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1215
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1216
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1217 vdp_port &= 0x1F;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1218 uint16_t ret;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1219 if (vdp_port < 0x10) {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1220 //These probably won't currently interact well with the 68K accessing the VDP
1752
d6d4c006a7b3 Initial attempt at interrupts in new Z80 core and integrating it into main executable
Michael Pavone <pavone@retrodev.com>
parents: 1690
diff changeset
1221 vdp_run_context(gen->vdp, context->Z80_CYCLE);
2227
eaaf28af3c94 Implement VDP read latency and invalid write delays revealed by Ti_'s instruction timing ROM
Michael Pavone <pavone@retrodev.com>
parents: 2194
diff changeset
1222 uint32_t before = context->Z80_CYCLE;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1223 if (vdp_port < 4) {
2227
eaaf28af3c94 Implement VDP read latency and invalid write delays revealed by Ti_'s instruction timing ROM
Michael Pavone <pavone@retrodev.com>
parents: 2194
diff changeset
1224 ret = vdp_data_port_read(gen->vdp, &context->Z80_CYCLE, MCLKS_PER_Z80);
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1225 } else if (vdp_port < 8) {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1226 ret = vdp_control_port_read(gen->vdp);
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1227 } else {
1316
3185438e0134 Fix copy pasta error in handling of Z80 VDP port reads. HV counter reads are not illegal writes =P. Fixes immediate exit in Overdrive II, though other problems remain
Michael Pavone <pavone@retrodev.com>
parents: 1309
diff changeset
1228 ret = vdp_hv_counter_read(gen->vdp);
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1229 }
2227
eaaf28af3c94 Implement VDP read latency and invalid write delays revealed by Ti_'s instruction timing ROM
Michael Pavone <pavone@retrodev.com>
parents: 2194
diff changeset
1230 if (context->Z80_CYCLE != before) {
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1231 gen->m68k->cycles += context->Z80_CYCLE - before;
2227
eaaf28af3c94 Implement VDP read latency and invalid write delays revealed by Ti_'s instruction timing ROM
Michael Pavone <pavone@retrodev.com>
parents: 2194
diff changeset
1232 }
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1233 } else {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1234 //TODO: Figure out the correct value today
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1235 ret = 0xFFFF;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1236 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1237 return vdp_port & 1 ? ret : ret >> 8;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1238 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1239
1116
fe8c79f82c22 More cleanup in preparation for SMS/Mark III support
Michael Pavone <pavone@retrodev.com>
parents: 1113
diff changeset
1240 //TODO: Move this inside the system context
fe8c79f82c22 More cleanup in preparation for SMS/Mark III support
Michael Pavone <pavone@retrodev.com>
parents: 1113
diff changeset
1241 static uint32_t zram_counter = 0;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1242
1116
fe8c79f82c22 More cleanup in preparation for SMS/Mark III support
Michael Pavone <pavone@retrodev.com>
parents: 1113
diff changeset
1243 static m68k_context * io_write(uint32_t location, m68k_context * context, uint8_t value)
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1244 {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1245 genesis_context * gen = context->system;
2280
9ead0fe69d9b Implement savestate support for Sega CD
Michael Pavone <pavone@retrodev.com>
parents: 2278
diff changeset
1246
2012
b05295c2ad04 Small improvement to refresh cycle approximation
Mike Pavone <pavone@retrodev.com>
parents: 1998
diff changeset
1247 //do refresh check here so we can avoid adding a penalty for a refresh that happens during an IO area access
2350
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
1248 gen_update_refresh_free_access(context);
2280
9ead0fe69d9b Implement savestate support for Sega CD
Michael Pavone <pavone@retrodev.com>
parents: 2278
diff changeset
1249
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1250 if (location < 0x10000) {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1251 //Access to Z80 memory incurs a one 68K cycle wait state
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1252 context->cycles += MCLKS_PER_68K;
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1253 if (!z80_enabled || z80_get_busack(gen->z80, context->cycles)) {
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1254 location &= 0x7FFF;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1255 if (location < 0x4000) {
1104
4224980a5f84 Fix the previous WIP commit. Quick tests suggests things are no more broken than before now.
Michael Pavone <pavone@retrodev.com>
parents: 1103
diff changeset
1256 gen->zram[location & 0x1FFF] = value;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1257 #ifndef NO_Z80
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1258 z80_handle_code_write(location & 0x1FFF, gen->z80);
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1259 #endif
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1260 } else if (location < 0x6000) {
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1261 sync_sound(gen, context->cycles);
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1262 if (location & 1) {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1263 ym_data_write(gen->ym, value);
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1264 } else if(location & 2) {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1265 ym_address_write_part2(gen->ym, value);
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1266 } else {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1267 ym_address_write_part1(gen->ym, value);
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1268 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1269 } else if (location == 0x6000) {
1752
d6d4c006a7b3 Initial attempt at interrupts in new Z80 core and integrating it into main executable
Michael Pavone <pavone@retrodev.com>
parents: 1690
diff changeset
1270 gen->z80_bank_reg = (gen->z80_bank_reg >> 1 | value << 8) & 0x1FF;
d6d4c006a7b3 Initial attempt at interrupts in new Z80 core and integrating it into main executable
Michael Pavone <pavone@retrodev.com>
parents: 1690
diff changeset
1271 if (gen->z80_bank_reg < 0x80) {
d6d4c006a7b3 Initial attempt at interrupts in new Z80 core and integrating it into main executable
Michael Pavone <pavone@retrodev.com>
parents: 1690
diff changeset
1272 gen->z80->mem_pointers[1] = (gen->z80_bank_reg << 15) + ((char *)gen->z80->mem_pointers[2]);
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1273 } else {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1274 gen->z80->mem_pointers[1] = NULL;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1275 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1276 } else {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1277 fatal_error("68K write to unhandled Z80 address %X\n", location);
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1278 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1279 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1280 } else {
1907
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1281 if (location < 0x10100) {
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1282 switch(location >> 1 & 0xFF)
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1283 {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1284 case 0x1:
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1285 io_data_write(gen->io.ports, value, context->cycles);
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1286 break;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1287 case 0x2:
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1288 io_data_write(gen->io.ports+1, value, context->cycles);
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1289 break;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1290 case 0x3:
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1291 io_data_write(gen->io.ports+2, value, context->cycles);
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1292 break;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1293 case 0x4:
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1294 io_control_write(gen->io.ports, value, context->cycles);
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1295 break;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1296 case 0x5:
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1297 io_control_write(gen->io.ports+1, value, context->cycles);
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1298 break;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1299 case 0x6:
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1300 io_control_write(gen->io.ports+2, value, context->cycles);
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1301 break;
1215
cf69a179aeaf Basic implementation of serial IO registers, but without actual serial IO support. Needed to run a certain software check cartridge that is floating around.
Michael Pavone <pavone@retrodev.com>
parents: 1208
diff changeset
1302 case 0x7:
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1303 io_tx_write(gen->io.ports, value, context->cycles);
1215
cf69a179aeaf Basic implementation of serial IO registers, but without actual serial IO support. Needed to run a certain software check cartridge that is floating around.
Michael Pavone <pavone@retrodev.com>
parents: 1208
diff changeset
1304 break;
cf69a179aeaf Basic implementation of serial IO registers, but without actual serial IO support. Needed to run a certain software check cartridge that is floating around.
Michael Pavone <pavone@retrodev.com>
parents: 1208
diff changeset
1305 case 0x8:
cf69a179aeaf Basic implementation of serial IO registers, but without actual serial IO support. Needed to run a certain software check cartridge that is floating around.
Michael Pavone <pavone@retrodev.com>
parents: 1208
diff changeset
1306 case 0xB:
cf69a179aeaf Basic implementation of serial IO registers, but without actual serial IO support. Needed to run a certain software check cartridge that is floating around.
Michael Pavone <pavone@retrodev.com>
parents: 1208
diff changeset
1307 case 0xE:
cf69a179aeaf Basic implementation of serial IO registers, but without actual serial IO support. Needed to run a certain software check cartridge that is floating around.
Michael Pavone <pavone@retrodev.com>
parents: 1208
diff changeset
1308 //serial input port is not writeable
cf69a179aeaf Basic implementation of serial IO registers, but without actual serial IO support. Needed to run a certain software check cartridge that is floating around.
Michael Pavone <pavone@retrodev.com>
parents: 1208
diff changeset
1309 break;
cf69a179aeaf Basic implementation of serial IO registers, but without actual serial IO support. Needed to run a certain software check cartridge that is floating around.
Michael Pavone <pavone@retrodev.com>
parents: 1208
diff changeset
1310 case 0x9:
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1311 io_sctrl_write(gen->io.ports, value, context->cycles);
1215
cf69a179aeaf Basic implementation of serial IO registers, but without actual serial IO support. Needed to run a certain software check cartridge that is floating around.
Michael Pavone <pavone@retrodev.com>
parents: 1208
diff changeset
1312 gen->io.ports[0].serial_ctrl = value;
cf69a179aeaf Basic implementation of serial IO registers, but without actual serial IO support. Needed to run a certain software check cartridge that is floating around.
Michael Pavone <pavone@retrodev.com>
parents: 1208
diff changeset
1313 break;
cf69a179aeaf Basic implementation of serial IO registers, but without actual serial IO support. Needed to run a certain software check cartridge that is floating around.
Michael Pavone <pavone@retrodev.com>
parents: 1208
diff changeset
1314 case 0xA:
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1315 io_tx_write(gen->io.ports + 1, value, context->cycles);
1215
cf69a179aeaf Basic implementation of serial IO registers, but without actual serial IO support. Needed to run a certain software check cartridge that is floating around.
Michael Pavone <pavone@retrodev.com>
parents: 1208
diff changeset
1316 break;
cf69a179aeaf Basic implementation of serial IO registers, but without actual serial IO support. Needed to run a certain software check cartridge that is floating around.
Michael Pavone <pavone@retrodev.com>
parents: 1208
diff changeset
1317 case 0xC:
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1318 io_sctrl_write(gen->io.ports + 1, value, context->cycles);
1215
cf69a179aeaf Basic implementation of serial IO registers, but without actual serial IO support. Needed to run a certain software check cartridge that is floating around.
Michael Pavone <pavone@retrodev.com>
parents: 1208
diff changeset
1319 break;
cf69a179aeaf Basic implementation of serial IO registers, but without actual serial IO support. Needed to run a certain software check cartridge that is floating around.
Michael Pavone <pavone@retrodev.com>
parents: 1208
diff changeset
1320 case 0xD:
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1321 io_tx_write(gen->io.ports + 2, value, context->cycles);
1215
cf69a179aeaf Basic implementation of serial IO registers, but without actual serial IO support. Needed to run a certain software check cartridge that is floating around.
Michael Pavone <pavone@retrodev.com>
parents: 1208
diff changeset
1322 break;
cf69a179aeaf Basic implementation of serial IO registers, but without actual serial IO support. Needed to run a certain software check cartridge that is floating around.
Michael Pavone <pavone@retrodev.com>
parents: 1208
diff changeset
1323 case 0xF:
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1324 io_sctrl_write(gen->io.ports + 2, value, context->cycles);
1215
cf69a179aeaf Basic implementation of serial IO registers, but without actual serial IO support. Needed to run a certain software check cartridge that is floating around.
Michael Pavone <pavone@retrodev.com>
parents: 1208
diff changeset
1325 break;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1326 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1327 } else {
1907
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1328 uint32_t masked = location & 0xFFF00;
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1329 if (masked == 0x11100) {
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1330 if (value & 1) {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1331 dputs("bus requesting Z80");
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1332 if (z80_enabled) {
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1333 z80_assert_busreq(gen->z80, context->cycles);
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1334 } else {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1335 gen->z80->busack = 1;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1336 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1337 } else {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1338 if (gen->z80->busreq) {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1339 dputs("releasing z80 bus");
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1340 #ifdef DO_DEBUG_PRINT
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1341 char fname[20];
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1342 sprintf(fname, "zram-%d", zram_counter++);
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1343 FILE * f = fopen(fname, "wb");
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1344 fwrite(z80_ram, 1, sizeof(z80_ram), f);
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1345 fclose(f);
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1346 #endif
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1347 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1348 if (z80_enabled) {
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1349 z80_clear_busreq(gen->z80, context->cycles);
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1350 } else {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1351 gen->z80->busack = 0;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1352 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1353 }
1907
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1354 } else if (masked == 0x11200) {
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1355 sync_z80(gen, context->cycles);
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1356 if (value & 1) {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1357 if (z80_enabled) {
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1358 z80_clear_reset(gen->z80, context->cycles);
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1359 } else {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1360 gen->z80->reset = 0;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1361 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1362 } else {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1363 if (z80_enabled) {
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1364 z80_assert_reset(gen->z80, context->cycles);
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1365 } else {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1366 gen->z80->reset = 1;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1367 }
1308
1b3fe6e03e7b Reset YM2612 whenver the Z80 is reset. Fixes issue with stuck notes in Fantastic Dizzy and Kid Chameleon
Michael Pavone <pavone@retrodev.com>
parents: 1304
diff changeset
1368 ym_reset(gen->ym);
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1369 }
1907
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1370 } else if (masked != 0x11300 && masked != 0x11000) {
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1371 fatal_error("Machine freeze due to unmapped write to address %X\n", location | 0xA00000);
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1372 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1373 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1374 }
2280
9ead0fe69d9b Implement savestate support for Sega CD
Michael Pavone <pavone@retrodev.com>
parents: 2278
diff changeset
1375
2012
b05295c2ad04 Small improvement to refresh cycle approximation
Mike Pavone <pavone@retrodev.com>
parents: 1998
diff changeset
1376 //no refresh delays during IO access
2350
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
1377 gen_update_refresh_no_wait(context);
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1378 return context;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1379 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1380
1116
fe8c79f82c22 More cleanup in preparation for SMS/Mark III support
Michael Pavone <pavone@retrodev.com>
parents: 1113
diff changeset
1381 static m68k_context * io_write_w(uint32_t location, m68k_context * context, uint16_t value)
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1382 {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1383 if (location < 0x10000 || (location & 0x1FFF) >= 0x100) {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1384 return io_write(location, context, value >> 8);
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1385 } else {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1386 return io_write(location, context, value);
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1387 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1388 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1389
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1390 static void* pico_io_write(uint32_t location, void *vcontext, uint8_t value)
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1391 {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1392 printf("Pico IO write.b %X - %X\n", location, value);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1393 return vcontext;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1394 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1395
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1396 static void* pico_io_write_w(uint32_t location, void *vcontext, uint16_t value)
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1397 {
2431
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
1398 uint32_t port = location & 0xFE;
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
1399 m68k_context *context = vcontext;
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
1400 genesis_context *gen = context->system;
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
1401 if (port == 0x10) {
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1402 sync_sound_pico(gen, context->cycles);
2431
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
1403 pico_pcm_data_write(gen->adpcm, value);
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
1404 printf("PICO ADPCM Data: %04X\n", value);
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
1405 if (context->int_num == 3) {
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
1406 adjust_int_cycle_pico(context, gen->vdp);
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
1407 }
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
1408 } else if (port == 0x12) {
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1409 sync_sound_pico(gen, context->cycles);
2431
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
1410 printf("PICO ADPCM Control: %04X\n", value);
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
1411 pico_pcm_ctrl_write(gen->adpcm, value);
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
1412 adjust_int_cycle_pico(context, gen->vdp);
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
1413 } else {
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
1414 return pico_io_write(location, vcontext, value);
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
1415 }
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1416 return vcontext;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1417 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1418
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1419 #define FOREIGN 0x80
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1420 #define HZ50 0x40
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1421 #define USA FOREIGN
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1422 #define JAP 0x00
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1423 #define EUR (HZ50|FOREIGN)
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1424 #define NO_DISK 0x20
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1425
1116
fe8c79f82c22 More cleanup in preparation for SMS/Mark III support
Michael Pavone <pavone@retrodev.com>
parents: 1113
diff changeset
1426 static uint8_t io_read(uint32_t location, m68k_context * context)
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1427 {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1428 uint8_t value;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1429 genesis_context *gen = context->system;
2280
9ead0fe69d9b Implement savestate support for Sega CD
Michael Pavone <pavone@retrodev.com>
parents: 2278
diff changeset
1430
2012
b05295c2ad04 Small improvement to refresh cycle approximation
Mike Pavone <pavone@retrodev.com>
parents: 1998
diff changeset
1431 //do refresh check here so we can avoid adding a penalty for a refresh that happens during an IO area access
2350
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
1432 gen_update_refresh_free_access(context);
2280
9ead0fe69d9b Implement savestate support for Sega CD
Michael Pavone <pavone@retrodev.com>
parents: 2278
diff changeset
1433
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1434 if (location < 0x10000) {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1435 //Access to Z80 memory incurs a one 68K cycle wait state
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1436 context->cycles += MCLKS_PER_68K;
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1437 if (!z80_enabled || z80_get_busack(gen->z80, context->cycles)) {
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1438 location &= 0x7FFF;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1439 if (location < 0x4000) {
1104
4224980a5f84 Fix the previous WIP commit. Quick tests suggests things are no more broken than before now.
Michael Pavone <pavone@retrodev.com>
parents: 1103
diff changeset
1440 value = gen->zram[location & 0x1FFF];
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1441 } else if (location < 0x6000) {
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1442 sync_sound(gen, context->cycles);
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1443 value = ym_read_status(gen->ym, context->cycles, location);
1907
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1444 } else if (location < 0x7F00) {
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1445 value = 0xFF;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1446 } else {
1907
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1447 fatal_error("Machine freeze due to read of Z80 VDP memory window by 68K: %X\n", location | 0xA00000);
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1448 value = 0xFF;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1449 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1450 } else {
1914
5b94e0e7c5a5 Reading from Z80 bus when Z80 is not bus requested should return open bus. Fixes regression in Metal Sonic Rebooted
Michael Pavone <pavone@retrodev.com>
parents: 1909
diff changeset
1451 uint16_t word = get_open_bus_value(&gen->header);
5b94e0e7c5a5 Reading from Z80 bus when Z80 is not bus requested should return open bus. Fixes regression in Metal Sonic Rebooted
Michael Pavone <pavone@retrodev.com>
parents: 1909
diff changeset
1452 value = location & 1 ? word : word >> 8;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1453 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1454 } else {
1907
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1455 if (location < 0x10100) {
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1456 switch(location >> 1 & 0xFF)
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1457 {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1458 case 0x0:
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1459 //version bits should be 0 for now since we're not emulating TMSS
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1460 value = gen->version_reg;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1461 break;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1462 case 0x1:
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1463 value = io_data_read(gen->io.ports, context->cycles);
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1464 break;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1465 case 0x2:
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1466 value = io_data_read(gen->io.ports+1, context->cycles);
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1467 break;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1468 case 0x3:
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1469 value = io_data_read(gen->io.ports+2, context->cycles);
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1470 break;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1471 case 0x4:
1111
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
1472 value = gen->io.ports[0].control;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1473 break;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1474 case 0x5:
1111
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
1475 value = gen->io.ports[1].control;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1476 break;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1477 case 0x6:
1111
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
1478 value = gen->io.ports[2].control;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1479 break;
1215
cf69a179aeaf Basic implementation of serial IO registers, but without actual serial IO support. Needed to run a certain software check cartridge that is floating around.
Michael Pavone <pavone@retrodev.com>
parents: 1208
diff changeset
1480 case 0x7:
cf69a179aeaf Basic implementation of serial IO registers, but without actual serial IO support. Needed to run a certain software check cartridge that is floating around.
Michael Pavone <pavone@retrodev.com>
parents: 1208
diff changeset
1481 value = gen->io.ports[0].serial_out;
cf69a179aeaf Basic implementation of serial IO registers, but without actual serial IO support. Needed to run a certain software check cartridge that is floating around.
Michael Pavone <pavone@retrodev.com>
parents: 1208
diff changeset
1482 break;
cf69a179aeaf Basic implementation of serial IO registers, but without actual serial IO support. Needed to run a certain software check cartridge that is floating around.
Michael Pavone <pavone@retrodev.com>
parents: 1208
diff changeset
1483 case 0x8:
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1484 value = io_rx_read(gen->io.ports, context->cycles);
1215
cf69a179aeaf Basic implementation of serial IO registers, but without actual serial IO support. Needed to run a certain software check cartridge that is floating around.
Michael Pavone <pavone@retrodev.com>
parents: 1208
diff changeset
1485 break;
cf69a179aeaf Basic implementation of serial IO registers, but without actual serial IO support. Needed to run a certain software check cartridge that is floating around.
Michael Pavone <pavone@retrodev.com>
parents: 1208
diff changeset
1486 case 0x9:
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1487 value = io_sctrl_read(gen->io.ports, context->cycles);
1215
cf69a179aeaf Basic implementation of serial IO registers, but without actual serial IO support. Needed to run a certain software check cartridge that is floating around.
Michael Pavone <pavone@retrodev.com>
parents: 1208
diff changeset
1488 break;
cf69a179aeaf Basic implementation of serial IO registers, but without actual serial IO support. Needed to run a certain software check cartridge that is floating around.
Michael Pavone <pavone@retrodev.com>
parents: 1208
diff changeset
1489 case 0xA:
cf69a179aeaf Basic implementation of serial IO registers, but without actual serial IO support. Needed to run a certain software check cartridge that is floating around.
Michael Pavone <pavone@retrodev.com>
parents: 1208
diff changeset
1490 value = gen->io.ports[1].serial_out;
cf69a179aeaf Basic implementation of serial IO registers, but without actual serial IO support. Needed to run a certain software check cartridge that is floating around.
Michael Pavone <pavone@retrodev.com>
parents: 1208
diff changeset
1491 break;
cf69a179aeaf Basic implementation of serial IO registers, but without actual serial IO support. Needed to run a certain software check cartridge that is floating around.
Michael Pavone <pavone@retrodev.com>
parents: 1208
diff changeset
1492 case 0xB:
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1493 value = io_rx_read(gen->io.ports + 1, context->cycles);
1215
cf69a179aeaf Basic implementation of serial IO registers, but without actual serial IO support. Needed to run a certain software check cartridge that is floating around.
Michael Pavone <pavone@retrodev.com>
parents: 1208
diff changeset
1494 break;
cf69a179aeaf Basic implementation of serial IO registers, but without actual serial IO support. Needed to run a certain software check cartridge that is floating around.
Michael Pavone <pavone@retrodev.com>
parents: 1208
diff changeset
1495 case 0xC:
2524
25e40370e0e4 Fix some IO port serial mode bugs
Michael Pavone <pavone@retrodev.com>
parents: 2500
diff changeset
1496 value = io_sctrl_read(gen->io.ports + 1, context->cycles);
1215
cf69a179aeaf Basic implementation of serial IO registers, but without actual serial IO support. Needed to run a certain software check cartridge that is floating around.
Michael Pavone <pavone@retrodev.com>
parents: 1208
diff changeset
1497 break;
cf69a179aeaf Basic implementation of serial IO registers, but without actual serial IO support. Needed to run a certain software check cartridge that is floating around.
Michael Pavone <pavone@retrodev.com>
parents: 1208
diff changeset
1498 case 0xD:
cf69a179aeaf Basic implementation of serial IO registers, but without actual serial IO support. Needed to run a certain software check cartridge that is floating around.
Michael Pavone <pavone@retrodev.com>
parents: 1208
diff changeset
1499 value = gen->io.ports[2].serial_out;
cf69a179aeaf Basic implementation of serial IO registers, but without actual serial IO support. Needed to run a certain software check cartridge that is floating around.
Michael Pavone <pavone@retrodev.com>
parents: 1208
diff changeset
1500 break;
cf69a179aeaf Basic implementation of serial IO registers, but without actual serial IO support. Needed to run a certain software check cartridge that is floating around.
Michael Pavone <pavone@retrodev.com>
parents: 1208
diff changeset
1501 case 0xE:
2524
25e40370e0e4 Fix some IO port serial mode bugs
Michael Pavone <pavone@retrodev.com>
parents: 2500
diff changeset
1502 value = io_rx_read(gen->io.ports + 2, context->cycles);
1215
cf69a179aeaf Basic implementation of serial IO registers, but without actual serial IO support. Needed to run a certain software check cartridge that is floating around.
Michael Pavone <pavone@retrodev.com>
parents: 1208
diff changeset
1503 break;
cf69a179aeaf Basic implementation of serial IO registers, but without actual serial IO support. Needed to run a certain software check cartridge that is floating around.
Michael Pavone <pavone@retrodev.com>
parents: 1208
diff changeset
1504 case 0xF:
2524
25e40370e0e4 Fix some IO port serial mode bugs
Michael Pavone <pavone@retrodev.com>
parents: 2500
diff changeset
1505 value = io_sctrl_read(gen->io.ports + 2, context->cycles);
1215
cf69a179aeaf Basic implementation of serial IO registers, but without actual serial IO support. Needed to run a certain software check cartridge that is floating around.
Michael Pavone <pavone@retrodev.com>
parents: 1208
diff changeset
1506 break;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1507 default:
1907
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1508 value = get_open_bus_value(&gen->header) >> 8;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1509 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1510 } else {
1907
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1511 uint32_t masked = location & 0xFFF00;
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1512 if (masked == 0x11100) {
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1513 value = z80_enabled ? !z80_get_busack(gen->z80, context->cycles) : !gen->z80->busack;
1117
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents: 1116
diff changeset
1514 value |= (get_open_bus_value(&gen->header) >> 8) & 0xFE;
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1515 dprintf("Byte read of BUSREQ returned %d @ %d (reset: %d)\n", value, context->cycles, gen->z80->reset);
1907
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1516 } else if (masked == 0x11200) {
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1517 value = !gen->z80->reset;
1907
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1518 } else if (masked == 0x11300 || masked == 0x11000) {
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1519 //A11300 is apparently completely unused
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1520 //A11000 is the memory control register which I am assuming is write only
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1521 value = get_open_bus_value(&gen->header) >> 8;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1522 } else {
1907
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1523 location |= 0xA00000;
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1524 fatal_error("Machine freeze due to read of unmapped IO location %X\n", location);
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1525 value = 0xFF;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1526 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1527 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1528 }
2280
9ead0fe69d9b Implement savestate support for Sega CD
Michael Pavone <pavone@retrodev.com>
parents: 2278
diff changeset
1529
2012
b05295c2ad04 Small improvement to refresh cycle approximation
Mike Pavone <pavone@retrodev.com>
parents: 1998
diff changeset
1530 //no refresh delays during IO access
2350
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
1531 gen_update_refresh_no_wait(context);
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1532 return value;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1533 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1534
1116
fe8c79f82c22 More cleanup in preparation for SMS/Mark III support
Michael Pavone <pavone@retrodev.com>
parents: 1113
diff changeset
1535 static uint16_t io_read_w(uint32_t location, m68k_context * context)
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1536 {
1117
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents: 1116
diff changeset
1537 genesis_context *gen = context->system;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1538 uint16_t value = io_read(location, context);
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1539 if (location < 0x10000 || (location & 0x1FFF) < 0x100) {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1540 value = value | (value << 8);
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1541 } else {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1542 value <<= 8;
1117
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents: 1116
diff changeset
1543 value |= get_open_bus_value(&gen->header) & 0xFF;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1544 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1545 return value;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1546 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1547
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1548 static uint8_t pico_io_read(uint32_t location, void *vcontext)
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1549 {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1550 m68k_context *m68k = vcontext;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1551 genesis_context *gen = m68k->system;
2431
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
1552 uint16_t tmp;
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1553 switch(location >> 1 & 0x7F)
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1554 {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1555 case 0:
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1556 return gen->version_reg;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1557 case 1:
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1558 return gen->pico_button_state;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1559 case 2:
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1560 return gen->pico_pen_x >> 8;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1561 case 3:
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1562 return gen->pico_pen_x;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1563 case 4:
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1564 return gen->pico_pen_y >> 8;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1565 case 5:
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1566 return gen->pico_pen_y;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1567 case 6:
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1568 return gen->pico_page;
2459
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1569 case 7:
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1570 //Copera titles seem to expect bit 0 to be 0 on a Copera and 1 on a Pico
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1571 if (gen->header.type == SYSTEM_PICO) {
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1572 return 1;
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1573 } else {
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1574 return 0;
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1575 }
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1576 case 8:
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1577 //printf("uPD7759 data read @ %u\n", m68k->cycles);
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1578 sync_sound_pico(gen, m68k->cycles);
2431
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
1579 tmp = pico_pcm_data_read(gen->adpcm);
2433
2907c3312423 Fix byte reads of ADPCM ports. Fixes hangs in Sanchoume no Tama and Sailor Moon Sailor Stars - Tokimeki Party
Michael Pavone <pavone@retrodev.com>
parents: 2431
diff changeset
1580 return (location & 1) ? tmp : tmp >> 8;
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1581 case 9:
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1582 //printf("uPD7759 contro/status read @ %u\n", m68k->cycles);
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1583 sync_sound_pico(gen, m68k->cycles);
2431
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
1584 tmp = pico_pcm_ctrl_read(gen->adpcm);
2433
2907c3312423 Fix byte reads of ADPCM ports. Fixes hangs in Sanchoume no Tama and Sailor Moon Sailor Stars - Tokimeki Party
Michael Pavone <pavone@retrodev.com>
parents: 2431
diff changeset
1585 return (location & 1) ? tmp : tmp >> 8;
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1586 return 0;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1587 default:
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1588 printf("Unknown Pico IO read %X @ %u\n", location, m68k->cycles);
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1589 return 0xFF;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1590 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1591 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1592
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1593 static uint16_t pico_io_read_w(uint32_t location, void *vcontext)
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1594 {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1595 m68k_context *m68k = vcontext;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1596 genesis_context *gen = m68k->system;
2431
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
1597 uint32_t port = location & 0xFE;
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
1598 if (port == 0x10) {
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1599 sync_sound_pico(gen, m68k->cycles);
2431
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
1600 return pico_pcm_data_read(gen->adpcm);
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
1601 } else if (port == 0x12) {
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1602 sync_sound_pico(gen, m68k->cycles);
2431
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
1603 return pico_pcm_ctrl_read(gen->adpcm);
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
1604 }
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1605 uint16_t value = pico_io_read(location, vcontext);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1606 return value | (value << 8);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1607 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1608
2459
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1609 static uint16_t copera_io_read_w(uint32_t location, void *vcontext)
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1610 {
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1611 printf("Unhandled Copera 16-bit read %X\n", location);
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1612 return 0xFFFF;
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1613 }
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1614
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1615 static uint8_t copera_io_read(uint32_t location, void *vcontext)
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1616 {
2460
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
1617 uint8_t ret;
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
1618 m68k_context *m68k = vcontext;
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
1619 genesis_context *gen = m68k->system;
2558
3f58fec775df Initial work on YMF262 (aka OPL3) emulation
Michael Pavone <pavone@retrodev.com>
parents: 2556
diff changeset
1620 //FIXME: Copera sound hardware has a separate clock
2460
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
1621 switch (location & 0xFF)
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
1622 {
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
1623 case 1:
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
1624 case 5:
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1625 ymz263b_run(gen->ymz, m68k->cycles);
2460
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
1626 ret = ymz263b_status_read(gen->ymz);
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
1627 printf("Copera YMZ263 Status read - %X: %X\n", location, ret);
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
1628 adjust_int_cycle_pico(gen->m68k, gen->vdp);
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
1629 return ret;
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
1630 case 3:
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
1631 case 7:
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1632 ymz263b_run(gen->ymz, m68k->cycles);
2460
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
1633 ret = ymz263b_data_read(gen->ymz, location & 4);
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
1634 printf("Copera YMZ263 Data read - %X: %X\n", location, ret);
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
1635 return ret;
2558
3f58fec775df Initial work on YMF262 (aka OPL3) emulation
Michael Pavone <pavone@retrodev.com>
parents: 2556
diff changeset
1636 case 0x28:
3f58fec775df Initial work on YMF262 (aka OPL3) emulation
Michael Pavone <pavone@retrodev.com>
parents: 2556
diff changeset
1637 ret = ymf262_read_status(gen->opl, m68k->cycles, 0);
3f58fec775df Initial work on YMF262 (aka OPL3) emulation
Michael Pavone <pavone@retrodev.com>
parents: 2556
diff changeset
1638 printf("Copera YMF262 Status read - %X: %X\n", location, ret);
3f58fec775df Initial work on YMF262 (aka OPL3) emulation
Michael Pavone <pavone@retrodev.com>
parents: 2556
diff changeset
1639 return ret;
2460
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
1640 default:
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
1641 printf("Unhandled Copera 8-bit read %X\n", location);
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
1642 return 0xFF;
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
1643 }
2459
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1644 }
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1645
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1646 static void* copera_io_write_w(uint32_t location, void *vcontext, uint16_t value)
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1647 {
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1648 printf("Unhandled Copera 16-bit write %X: %X\n", location, value);
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1649 return vcontext;
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1650 }
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1651
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1652 static void* copera_io_write(uint32_t location, void *vcontext, uint8_t value)
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1653 {
2460
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
1654 m68k_context *m68k = vcontext;
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
1655 genesis_context *gen = m68k->system;
2558
3f58fec775df Initial work on YMF262 (aka OPL3) emulation
Michael Pavone <pavone@retrodev.com>
parents: 2556
diff changeset
1656 //FIXME: Copera sound hardware has a separate clock
2459
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1657 switch (location & 0xFF)
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1658 {
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1659 case 1:
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1660 case 5:
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1661 ymz263b_run(gen->ymz, m68k->cycles);
2459
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1662 printf("Copera YMZ263 Address write - %X: %X\n", location, value);
2460
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
1663 ymz263b_address_write(gen->ymz, value);
2459
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1664 break;
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1665 case 3:
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1666 case 7:
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1667 ymz263b_run(gen->ymz, m68k->cycles);
2459
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1668 printf("Copera YMZ263 Channel #%d Data write - %X: %X\n", ((location & 4) >> 2) + 1, location, value);
2460
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
1669 ymz263b_data_write(gen->ymz, location & 4, value);
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
1670 adjust_int_cycle_pico(gen->m68k, gen->vdp);
2459
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1671 break;
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1672 case 0x24:
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1673 case 0x34:
2460
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
1674 printf("Copera YMF262 Address Part #%d write - %X: %X\n", ((location >> 4) & 1) + 1, location, value);
2558
3f58fec775df Initial work on YMF262 (aka OPL3) emulation
Michael Pavone <pavone@retrodev.com>
parents: 2556
diff changeset
1675 ymf262_run(gen->opl, m68k->cycles);
3f58fec775df Initial work on YMF262 (aka OPL3) emulation
Michael Pavone <pavone@retrodev.com>
parents: 2556
diff changeset
1676 if (location & 0x10) {
3f58fec775df Initial work on YMF262 (aka OPL3) emulation
Michael Pavone <pavone@retrodev.com>
parents: 2556
diff changeset
1677 ymf262_address_write_part2(gen->opl, value);
3f58fec775df Initial work on YMF262 (aka OPL3) emulation
Michael Pavone <pavone@retrodev.com>
parents: 2556
diff changeset
1678 } else {
3f58fec775df Initial work on YMF262 (aka OPL3) emulation
Michael Pavone <pavone@retrodev.com>
parents: 2556
diff changeset
1679 ymf262_address_write_part1(gen->opl, value);
3f58fec775df Initial work on YMF262 (aka OPL3) emulation
Michael Pavone <pavone@retrodev.com>
parents: 2556
diff changeset
1680 }
2459
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1681 break;
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1682 case 0x28:
2460
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
1683 printf("Copera YMF262 Data write - %X: %X\n", location, value);
2558
3f58fec775df Initial work on YMF262 (aka OPL3) emulation
Michael Pavone <pavone@retrodev.com>
parents: 2556
diff changeset
1684 ymf262_run(gen->opl, m68k->cycles);
3f58fec775df Initial work on YMF262 (aka OPL3) emulation
Michael Pavone <pavone@retrodev.com>
parents: 2556
diff changeset
1685 ymf262_data_write(gen->opl, value);
2459
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1686 break;
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1687 case 0x40:
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1688 //Bit 4 = SCI
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1689 //Bit 5 = DIN
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1690 //Bit 6 = A0
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1691 //Possible Bit 0-3 are the same but for the other YM7128B
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1692 printf("Copera YM7128B Write - %X: %X\n", location, value);
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1693 break;
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1694 default:
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1695 printf("Unhandled Copera 8-bit write %X: %X\n", location, value);
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1696 }
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1697 return vcontext;
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1698 }
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1699
1116
fe8c79f82c22 More cleanup in preparation for SMS/Mark III support
Michael Pavone <pavone@retrodev.com>
parents: 1113
diff changeset
1700 static void * z80_write_ym(uint32_t location, void * vcontext, uint8_t value)
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1701 {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1702 z80_context * context = vcontext;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1703 genesis_context * gen = context->system;
1752
d6d4c006a7b3 Initial attempt at interrupts in new Z80 core and integrating it into main executable
Michael Pavone <pavone@retrodev.com>
parents: 1690
diff changeset
1704 sync_sound(gen, context->Z80_CYCLE);
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1705 if (location & 1) {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1706 ym_data_write(gen->ym, value);
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1707 } else if (location & 2) {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1708 ym_address_write_part2(gen->ym, value);
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1709 } else {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1710 ym_address_write_part1(gen->ym, value);
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1711 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1712 return context;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1713 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1714
1116
fe8c79f82c22 More cleanup in preparation for SMS/Mark III support
Michael Pavone <pavone@retrodev.com>
parents: 1113
diff changeset
1715 static uint8_t z80_read_ym(uint32_t location, void * vcontext)
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1716 {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1717 z80_context * context = vcontext;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1718 genesis_context * gen = context->system;
1752
d6d4c006a7b3 Initial attempt at interrupts in new Z80 core and integrating it into main executable
Michael Pavone <pavone@retrodev.com>
parents: 1690
diff changeset
1719 sync_sound(gen, context->Z80_CYCLE);
1904
8312e574100a Implement selectable YM2612/YM3834 invalid status port behavior
Michael Pavone <pavone@retrodev.com>
parents: 1902
diff changeset
1720 return ym_read_status(gen->ym, context->Z80_CYCLE, location);
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1721 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1722
1116
fe8c79f82c22 More cleanup in preparation for SMS/Mark III support
Michael Pavone <pavone@retrodev.com>
parents: 1113
diff changeset
1723 static uint8_t z80_read_bank(uint32_t location, void * vcontext)
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1724 {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1725 z80_context * context = vcontext;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1726 genesis_context *gen = context->system;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1727 if (gen->bus_busy) {
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1728 context->Z80_CYCLE = gen->m68k->cycles;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1729 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1730 //typical delay from bus arbitration
1752
d6d4c006a7b3 Initial attempt at interrupts in new Z80 core and integrating it into main executable
Michael Pavone <pavone@retrodev.com>
parents: 1690
diff changeset
1731 context->Z80_CYCLE += 3 * MCLKS_PER_Z80;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1732 //TODO: add cycle for an access right after a previous one
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1733 //TODO: Below cycle time is an estimate based on the time between 68K !BG goes low and Z80 !MREQ goes high
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1734 // Needs a new logic analyzer capture to get the actual delay on the 68K side
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1735 gen->m68k->cycles += 8 * MCLKS_PER_68K;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1736
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1737 location &= 0x7FFF;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1738 if (context->mem_pointers[1]) {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1739 return context->mem_pointers[1][location ^ 1];
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1740 }
1752
d6d4c006a7b3 Initial attempt at interrupts in new Z80 core and integrating it into main executable
Michael Pavone <pavone@retrodev.com>
parents: 1690
diff changeset
1741 uint32_t address = gen->z80_bank_reg << 15 | location;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1742 if (address >= 0xC00000 && address < 0xE00000) {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1743 return z80_vdp_port_read(location & 0xFF, context);
1869
dc94354eab66 Fix accuracy bugs used by Novedicus to detect BlastEm/Exodus
Michael Pavone <pavone@retrodev.com>
parents: 1849
diff changeset
1744 } else if (address >= 0xA10000 && address <= 0xA10001) {
dc94354eab66 Fix accuracy bugs used by Novedicus to detect BlastEm/Exodus
Michael Pavone <pavone@retrodev.com>
parents: 1849
diff changeset
1745 //Apparently version reg can be read through Z80 banked area
dc94354eab66 Fix accuracy bugs used by Novedicus to detect BlastEm/Exodus
Michael Pavone <pavone@retrodev.com>
parents: 1849
diff changeset
1746 //TODO: Check rest of IO region addresses
dc94354eab66 Fix accuracy bugs used by Novedicus to detect BlastEm/Exodus
Michael Pavone <pavone@retrodev.com>
parents: 1849
diff changeset
1747 return gen->version_reg;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1748 } else {
1752
d6d4c006a7b3 Initial attempt at interrupts in new Z80 core and integrating it into main executable
Michael Pavone <pavone@retrodev.com>
parents: 1690
diff changeset
1749 fprintf(stderr, "Unhandled read by Z80 from address %X through banked memory area (%X)\n", address, gen->z80_bank_reg << 15);
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1750 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1751 return 0;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1752 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1753
1116
fe8c79f82c22 More cleanup in preparation for SMS/Mark III support
Michael Pavone <pavone@retrodev.com>
parents: 1113
diff changeset
1754 static void *z80_write_bank(uint32_t location, void * vcontext, uint8_t value)
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1755 {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1756 z80_context * context = vcontext;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1757 genesis_context *gen = context->system;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1758 if (gen->bus_busy) {
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1759 context->Z80_CYCLE = gen->m68k->cycles;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1760 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1761 //typical delay from bus arbitration
1752
d6d4c006a7b3 Initial attempt at interrupts in new Z80 core and integrating it into main executable
Michael Pavone <pavone@retrodev.com>
parents: 1690
diff changeset
1762 context->Z80_CYCLE += 3 * MCLKS_PER_Z80;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1763 //TODO: add cycle for an access right after a previous one
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1764 //TODO: Below cycle time is an estimate based on the time between 68K !BG goes low and Z80 !MREQ goes high
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1765 // Needs a new logic analyzer capture to get the actual delay on the 68K side
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1766 gen->m68k->cycles += 8 * MCLKS_PER_68K;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1767
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1768 location &= 0x7FFF;
1752
d6d4c006a7b3 Initial attempt at interrupts in new Z80 core and integrating it into main executable
Michael Pavone <pavone@retrodev.com>
parents: 1690
diff changeset
1769 uint32_t address = gen->z80_bank_reg << 15 | location;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1770 if (address >= 0xE00000) {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1771 address &= 0xFFFF;
1104
4224980a5f84 Fix the previous WIP commit. Quick tests suggests things are no more broken than before now.
Michael Pavone <pavone@retrodev.com>
parents: 1103
diff changeset
1772 ((uint8_t *)gen->work_ram)[address ^ 1] = value;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1773 } else if (address >= 0xC00000) {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1774 z80_vdp_port_write(location & 0xFF, context, value);
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1775 } else {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1776 fprintf(stderr, "Unhandled write by Z80 to address %X through banked memory area\n", address);
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1777 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1778 return context;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1779 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1780
1116
fe8c79f82c22 More cleanup in preparation for SMS/Mark III support
Michael Pavone <pavone@retrodev.com>
parents: 1113
diff changeset
1781 static void *z80_write_bank_reg(uint32_t location, void * vcontext, uint8_t value)
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1782 {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1783 z80_context * context = vcontext;
1752
d6d4c006a7b3 Initial attempt at interrupts in new Z80 core and integrating it into main executable
Michael Pavone <pavone@retrodev.com>
parents: 1690
diff changeset
1784 genesis_context *gen = context->system;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1785
1752
d6d4c006a7b3 Initial attempt at interrupts in new Z80 core and integrating it into main executable
Michael Pavone <pavone@retrodev.com>
parents: 1690
diff changeset
1786 gen->z80_bank_reg = (gen->z80_bank_reg >> 1 | value << 8) & 0x1FF;
1445
349d50930c03 Save and restore Z80 bank register in native save states
Michael Pavone <pavone@retrodev.com>
parents: 1444
diff changeset
1787 update_z80_bank_pointer(context->system);
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1788
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1789 return context;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1790 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1791
1907
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1792 static uint16_t unused_read(uint32_t location, void *vcontext)
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1793 {
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1794 m68k_context *context = vcontext;
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1795 genesis_context *gen = context->system;
2228
0db9dc6a9020 Some minor refresh emulation improvements
Michael Pavone <pavone@retrodev.com>
parents: 2227
diff changeset
1796 if (location >= 0x800000) {
0db9dc6a9020 Some minor refresh emulation improvements
Michael Pavone <pavone@retrodev.com>
parents: 2227
diff changeset
1797 //do refresh check here so we can avoid adding a penalty for a refresh that happens during an IO area access
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1798 gen->refresh_counter += context->cycles - 4*MCLKS_PER_68K - gen->last_sync_cycle;
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1799 context->cycles += REFRESH_DELAY * MCLKS_PER_68K * (gen->refresh_counter / (MCLKS_PER_68K * REFRESH_INTERVAL));
2280
9ead0fe69d9b Implement savestate support for Sega CD
Michael Pavone <pavone@retrodev.com>
parents: 2278
diff changeset
1800 gen->refresh_counter += 4*MCLKS_PER_68K;
9ead0fe69d9b Implement savestate support for Sega CD
Michael Pavone <pavone@retrodev.com>
parents: 2278
diff changeset
1801 gen->refresh_counter = gen->refresh_counter % (MCLKS_PER_68K * REFRESH_INTERVAL);
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1802 gen->last_sync_cycle = context->cycles;
2228
0db9dc6a9020 Some minor refresh emulation improvements
Michael Pavone <pavone@retrodev.com>
parents: 2227
diff changeset
1803 }
0db9dc6a9020 Some minor refresh emulation improvements
Michael Pavone <pavone@retrodev.com>
parents: 2227
diff changeset
1804
1987
71732f2f6f42 Fix handling of unmapped reads/writes to the cart/expansion port region
Mike Pavone <pavone@retrodev.com>
parents: 1980
diff changeset
1805 if (location < 0x800000 || (location >= 0xA13000 && location < 0xA13100) || (location >= 0xA12000 && location < 0xA12100)) {
1907
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1806 //Only called if the cart/exp doesn't have a more specific handler for this region
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1807 return get_open_bus_value(&gen->header);
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1808 } else if (location == 0xA14000 || location == 0xA14002) {
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1809 if (gen->version_reg & 0xF) {
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1810 return gen->tmss_lock[location >> 1 & 1];
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1811 } else {
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1812 fatal_error("Machine freeze due to read from TMSS lock when TMSS is not present %X\n", location);
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1813 return 0xFFFF;
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1814 }
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1815 } else if (location == 0xA14100) {
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1816 if (gen->version_reg & 0xF) {
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1817 return get_open_bus_value(&gen->header);
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1818 } else {
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1819 fatal_error("Machine freeze due to read from TMSS control when TMSS is not present %X\n", location);
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1820 return 0xFFFF;
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1821 }
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1822 } else {
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1823 fatal_error("Machine freeze due to unmapped read from %X\n", location);
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1824 return 0xFFFF;
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1825 }
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1826 }
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1827
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1828 static uint8_t unused_read_b(uint32_t location, void *vcontext)
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1829 {
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1830 uint16_t v = unused_read(location & 0xFFFFFE, vcontext);
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1831 if (location & 1) {
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1832 return v;
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1833 } else {
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1834 return v >> 8;
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1835 }
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1836 }
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1837
2037
b0b0c31338c3 Implement TMSS VDP lock
Michael Pavone <pavone@retrodev.com>
parents: 2034
diff changeset
1838 static void check_tmss_lock(genesis_context *gen)
b0b0c31338c3 Implement TMSS VDP lock
Michael Pavone <pavone@retrodev.com>
parents: 2034
diff changeset
1839 {
2039
3b8e29ef1145 Add TMSS state to save states
Michael Pavone <pavone@retrodev.com>
parents: 2037
diff changeset
1840 gen->vdp_unlocked = gen->tmss_lock[0] == 0x5345 && gen->tmss_lock[1] == 0x4741;
3b8e29ef1145 Add TMSS state to save states
Michael Pavone <pavone@retrodev.com>
parents: 2037
diff changeset
1841 }
3b8e29ef1145 Add TMSS state to save states
Michael Pavone <pavone@retrodev.com>
parents: 2037
diff changeset
1842
3b8e29ef1145 Add TMSS state to save states
Michael Pavone <pavone@retrodev.com>
parents: 2037
diff changeset
1843 static void toggle_tmss_rom(genesis_context *gen)
3b8e29ef1145 Add TMSS state to save states
Michael Pavone <pavone@retrodev.com>
parents: 2037
diff changeset
1844 {
3b8e29ef1145 Add TMSS state to save states
Michael Pavone <pavone@retrodev.com>
parents: 2037
diff changeset
1845 m68k_context *context = gen->m68k;
3b8e29ef1145 Add TMSS state to save states
Michael Pavone <pavone@retrodev.com>
parents: 2037
diff changeset
1846 for (int i = 0; i < NUM_MEM_AREAS; i++)
3b8e29ef1145 Add TMSS state to save states
Michael Pavone <pavone@retrodev.com>
parents: 2037
diff changeset
1847 {
3b8e29ef1145 Add TMSS state to save states
Michael Pavone <pavone@retrodev.com>
parents: 2037
diff changeset
1848 uint16_t *tmp = context->mem_pointers[i];
3b8e29ef1145 Add TMSS state to save states
Michael Pavone <pavone@retrodev.com>
parents: 2037
diff changeset
1849 context->mem_pointers[i] = gen->tmss_pointers[i];
3b8e29ef1145 Add TMSS state to save states
Michael Pavone <pavone@retrodev.com>
parents: 2037
diff changeset
1850 gen->tmss_pointers[i] = tmp;
3b8e29ef1145 Add TMSS state to save states
Michael Pavone <pavone@retrodev.com>
parents: 2037
diff changeset
1851 }
3b8e29ef1145 Add TMSS state to save states
Michael Pavone <pavone@retrodev.com>
parents: 2037
diff changeset
1852 m68k_invalidate_code_range(context, 0, 0x400000);
2037
b0b0c31338c3 Implement TMSS VDP lock
Michael Pavone <pavone@retrodev.com>
parents: 2034
diff changeset
1853 }
b0b0c31338c3 Implement TMSS VDP lock
Michael Pavone <pavone@retrodev.com>
parents: 2034
diff changeset
1854
1907
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1855 static void *unused_write(uint32_t location, void *vcontext, uint16_t value)
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1856 {
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1857 m68k_context *context = vcontext;
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1858 genesis_context *gen = context->system;
2228
0db9dc6a9020 Some minor refresh emulation improvements
Michael Pavone <pavone@retrodev.com>
parents: 2227
diff changeset
1859 if (location >= 0x800000) {
0db9dc6a9020 Some minor refresh emulation improvements
Michael Pavone <pavone@retrodev.com>
parents: 2227
diff changeset
1860 //do refresh check here so we can avoid adding a penalty for a refresh that happens during an IO area access
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1861 gen->refresh_counter += context->cycles - 4*MCLKS_PER_68K - gen->last_sync_cycle;
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1862 context->cycles += REFRESH_DELAY * MCLKS_PER_68K * (gen->refresh_counter / (MCLKS_PER_68K * REFRESH_INTERVAL));
2280
9ead0fe69d9b Implement savestate support for Sega CD
Michael Pavone <pavone@retrodev.com>
parents: 2278
diff changeset
1863 gen->refresh_counter += 4*MCLKS_PER_68K;
9ead0fe69d9b Implement savestate support for Sega CD
Michael Pavone <pavone@retrodev.com>
parents: 2278
diff changeset
1864 gen->refresh_counter = gen->refresh_counter % (MCLKS_PER_68K * REFRESH_INTERVAL);
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1865 gen->last_sync_cycle = context->cycles;
2228
0db9dc6a9020 Some minor refresh emulation improvements
Michael Pavone <pavone@retrodev.com>
parents: 2227
diff changeset
1866 }
2280
9ead0fe69d9b Implement savestate support for Sega CD
Michael Pavone <pavone@retrodev.com>
parents: 2278
diff changeset
1867
1907
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1868 uint8_t has_tmss = gen->version_reg & 0xF;
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1869 if (has_tmss && (location == 0xA14000 || location == 0xA14002)) {
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1870 gen->tmss_lock[location >> 1 & 1] = value;
2037
b0b0c31338c3 Implement TMSS VDP lock
Michael Pavone <pavone@retrodev.com>
parents: 2034
diff changeset
1871 check_tmss_lock(gen);
1907
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1872 } else if (has_tmss && location == 0xA14100) {
2034
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
1873 value &= 1;
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
1874 if (gen->tmss != value) {
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
1875 gen->tmss = value;
2039
3b8e29ef1145 Add TMSS state to save states
Michael Pavone <pavone@retrodev.com>
parents: 2037
diff changeset
1876 toggle_tmss_rom(gen);
2034
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
1877 }
1987
71732f2f6f42 Fix handling of unmapped reads/writes to the cart/expansion port region
Mike Pavone <pavone@retrodev.com>
parents: 1980
diff changeset
1878 } else if (location < 0x800000 || (location >= 0xA13000 && location < 0xA13100) || (location >= 0xA12000 && location < 0xA12100)) {
71732f2f6f42 Fix handling of unmapped reads/writes to the cart/expansion port region
Mike Pavone <pavone@retrodev.com>
parents: 1980
diff changeset
1879 //these writes are ignored when no relevant hardware is present
71732f2f6f42 Fix handling of unmapped reads/writes to the cart/expansion port region
Mike Pavone <pavone@retrodev.com>
parents: 1980
diff changeset
1880 } else {
1907
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1881 fatal_error("Machine freeze due to unmapped write to %X\n", location);
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1882 }
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1883 return vcontext;
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1884 }
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1885
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1886 static void *unused_write_b(uint32_t location, void *vcontext, uint8_t value)
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1887 {
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1888 m68k_context *context = vcontext;
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1889 genesis_context *gen = context->system;
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1890 uint8_t has_tmss = gen->version_reg & 0xF;
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1891 if (has_tmss && location >= 0xA14000 && location <= 0xA14003) {
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1892 uint32_t offset = location >> 1 & 1;
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1893 if (location & 1) {
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1894 gen->tmss_lock[offset] &= 0xFF00;
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1895 gen->tmss_lock[offset] |= value;
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1896 } else {
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1897 gen->tmss_lock[offset] &= 0xFF;
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1898 gen->tmss_lock[offset] |= value << 8;
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1899 }
2037
b0b0c31338c3 Implement TMSS VDP lock
Michael Pavone <pavone@retrodev.com>
parents: 2034
diff changeset
1900 check_tmss_lock(gen);
1907
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1901 } else if (has_tmss && (location == 0xA14100 || location == 0xA14101)) {
2034
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
1902 if (location & 1) {
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
1903 value &= 1;
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
1904 if (gen->tmss != value) {
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
1905 gen->tmss = value;
2039
3b8e29ef1145 Add TMSS state to save states
Michael Pavone <pavone@retrodev.com>
parents: 2037
diff changeset
1906 toggle_tmss_rom(gen);
2034
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
1907 }
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
1908 }
1987
71732f2f6f42 Fix handling of unmapped reads/writes to the cart/expansion port region
Mike Pavone <pavone@retrodev.com>
parents: 1980
diff changeset
1909 } else if (location < 0x800000 || (location >= 0xA13000 && location < 0xA13100) || (location >= 0xA12000 && location < 0xA12100)) {
71732f2f6f42 Fix handling of unmapped reads/writes to the cart/expansion port region
Mike Pavone <pavone@retrodev.com>
parents: 1980
diff changeset
1910 //these writes are ignored when no relevant hardware is present
71732f2f6f42 Fix handling of unmapped reads/writes to the cart/expansion port region
Mike Pavone <pavone@retrodev.com>
parents: 1980
diff changeset
1911 } else {
1907
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1912 fatal_error("Machine freeze due to unmapped byte write to %X\n", location);
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1913 }
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1914 return vcontext;
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1915 }
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1916
1111
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
1917 static void set_speed_percent(system_header * system, uint32_t percent)
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1918 {
1111
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
1919 genesis_context *context = (genesis_context *)system;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1920 uint32_t old_clock = context->master_clock;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1921 context->master_clock = ((uint64_t)context->normal_clock * (uint64_t)percent) / 100;
2486
e8eba0cd5444 Implement turbo/slow for Pico and Copera
Michael Pavone <pavone@retrodev.com>
parents: 2485
diff changeset
1922 if (context->header.type != SYSTEM_PICO && context->header.type != SYSTEM_COPERA) {
e8eba0cd5444 Implement turbo/slow for Pico and Copera
Michael Pavone <pavone@retrodev.com>
parents: 2485
diff changeset
1923 while (context->ym->current_cycle != context->psg->cycles) {
e8eba0cd5444 Implement turbo/slow for Pico and Copera
Michael Pavone <pavone@retrodev.com>
parents: 2485
diff changeset
1924 sync_sound(context, context->psg->cycles + MCLKS_PER_PSG);
e8eba0cd5444 Implement turbo/slow for Pico and Copera
Michael Pavone <pavone@retrodev.com>
parents: 2485
diff changeset
1925 }
e8eba0cd5444 Implement turbo/slow for Pico and Copera
Michael Pavone <pavone@retrodev.com>
parents: 2485
diff changeset
1926 if (context->expansion) {
e8eba0cd5444 Implement turbo/slow for Pico and Copera
Michael Pavone <pavone@retrodev.com>
parents: 2485
diff changeset
1927 segacd_context *cd = context->expansion;
e8eba0cd5444 Implement turbo/slow for Pico and Copera
Michael Pavone <pavone@retrodev.com>
parents: 2485
diff changeset
1928 segacd_set_speed_percent(cd, percent);
e8eba0cd5444 Implement turbo/slow for Pico and Copera
Michael Pavone <pavone@retrodev.com>
parents: 2485
diff changeset
1929 }
e8eba0cd5444 Implement turbo/slow for Pico and Copera
Michael Pavone <pavone@retrodev.com>
parents: 2485
diff changeset
1930 ym_adjust_master_clock(context->ym, context->master_clock);
e8eba0cd5444 Implement turbo/slow for Pico and Copera
Michael Pavone <pavone@retrodev.com>
parents: 2485
diff changeset
1931 } else {
e8eba0cd5444 Implement turbo/slow for Pico and Copera
Michael Pavone <pavone@retrodev.com>
parents: 2485
diff changeset
1932 while (context->adpcm->cycle != context->psg->cycles) {
e8eba0cd5444 Implement turbo/slow for Pico and Copera
Michael Pavone <pavone@retrodev.com>
parents: 2485
diff changeset
1933 sync_sound_pico(context, context->psg->cycles + MCLKS_PER_PSG);
e8eba0cd5444 Implement turbo/slow for Pico and Copera
Michael Pavone <pavone@retrodev.com>
parents: 2485
diff changeset
1934 }
e8eba0cd5444 Implement turbo/slow for Pico and Copera
Michael Pavone <pavone@retrodev.com>
parents: 2485
diff changeset
1935 if (context->ymz) {
e8eba0cd5444 Implement turbo/slow for Pico and Copera
Michael Pavone <pavone@retrodev.com>
parents: 2485
diff changeset
1936 ymz263b_adjust_master_clock(context->ymz, context->master_clock);
2558
3f58fec775df Initial work on YMF262 (aka OPL3) emulation
Michael Pavone <pavone@retrodev.com>
parents: 2556
diff changeset
1937 ymf262_adjust_master_clock(context->opl, context->master_clock);
2486
e8eba0cd5444 Implement turbo/slow for Pico and Copera
Michael Pavone <pavone@retrodev.com>
parents: 2485
diff changeset
1938 }
e8eba0cd5444 Implement turbo/slow for Pico and Copera
Michael Pavone <pavone@retrodev.com>
parents: 2485
diff changeset
1939 pico_pcm_adjust_master_clock(context->adpcm, context->master_clock);
1116
fe8c79f82c22 More cleanup in preparation for SMS/Mark III support
Michael Pavone <pavone@retrodev.com>
parents: 1113
diff changeset
1940 }
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1941 psg_adjust_master_clock(context->psg, context->master_clock);
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1942 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1943
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1944 void set_region(genesis_context *gen, rom_info *info, uint8_t region)
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1945 {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1946 if (!region) {
1326
071e761bcdcf Fix a deficiency in the way types were handled in my ternary tree. Fixes in which some paths that were constructed from a template with variables would sometimes get an extra garbage character thrown in
Michael Pavone <pavone@retrodev.com>
parents: 1318
diff changeset
1947 char * def_region = tern_find_path_default(config, "system\0default_region\0", (tern_val){.ptrval = "U"}, TVAL_PTR).ptrval;
2623
07faf0f5466f Add option to force use of the default region
Michael Pavone <pavone@retrodev.com>
parents: 2600
diff changeset
1948 char * force_region = tern_find_path_default(config, "system\0force_region\0", (tern_val){.ptrval = "off"}, TVAL_PTR).ptrval;
07faf0f5466f Add option to force use of the default region
Michael Pavone <pavone@retrodev.com>
parents: 2600
diff changeset
1949
07faf0f5466f Add option to force use of the default region
Michael Pavone <pavone@retrodev.com>
parents: 2600
diff changeset
1950 if (!info->regions || (info->regions & translate_region_char(toupper(*def_region))) || !strcmp(force_region, "on")) {
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1951 region = translate_region_char(toupper(*def_region));
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1952 } else {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1953 region = info->regions;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1954 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1955 }
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1956 uint8_t is_50hz = 0;
2459
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1957 if (gen->header.type == SYSTEM_PICO || gen->header.type == SYSTEM_COPERA) {
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1958 if (region & REGION_E) {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1959 is_50hz = 1;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1960 gen->version_reg = 0x20;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1961 } else if (region & REGION_J) {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1962 gen->version_reg = 0;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1963 } else {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1964 gen->version_reg = 0x40;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1965 }
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1966 } else {
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1967 if (region & REGION_E) {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1968 gen->version_reg = NO_DISK | EUR;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1969 is_50hz = 1;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1970 } else if (region & REGION_J) {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1971 gen->version_reg = NO_DISK | JAP;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1972 } else {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1973 gen->version_reg = NO_DISK | USA;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1974 }
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1975 }
2052
3748a2a8a4b7 Support Sega mapper without 'SEGA SSF' in header or ROM DB entry and implement a subset of the extended Sega mapper implemented in the Mega Everdrive when 'SEGA SSF' is present
Michael Pavone <pavone@retrodev.com>
parents: 2039
diff changeset
1976
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1977 if (is_50hz) {
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1978 gen->normal_clock = MCLKS_PAL;
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1979 gen->soft_flush_cycles = MCLKS_LINE * 313 / 3 + 2;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1980 } else {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1981 gen->normal_clock = MCLKS_NTSC;
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1982 gen->soft_flush_cycles = MCLKS_LINE * 262 / 3 + 2;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1983 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1984 gen->master_clock = gen->normal_clock;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1985 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1986
1433
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1428
diff changeset
1987 static uint8_t load_state(system_header *system, uint8_t slot)
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1428
diff changeset
1988 {
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1428
diff changeset
1989 genesis_context *gen = (genesis_context *)system;
1479
a568dca999b2 Fix genesis save state loading via Nuklear UI, sms probably still needs work
Michael Pavone <pavone@retrodev.com>
parents: 1478
diff changeset
1990 char *statepath = get_slot_name(system, slot, "state");
1433
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1428
diff changeset
1991 deserialize_buffer state;
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1428
diff changeset
1992 uint32_t pc = 0;
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1428
diff changeset
1993 uint8_t ret;
2500
d44fe974fb85 Get blastem compiling with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2499
diff changeset
1994 #ifndef NEW_CORE
1479
a568dca999b2 Fix genesis save state loading via Nuklear UI, sms probably still needs work
Michael Pavone <pavone@retrodev.com>
parents: 1478
diff changeset
1995 if (!gen->m68k->resume_pc) {
a568dca999b2 Fix genesis save state loading via Nuklear UI, sms probably still needs work
Michael Pavone <pavone@retrodev.com>
parents: 1478
diff changeset
1996 system->delayed_load_slot = slot + 1;
a568dca999b2 Fix genesis save state loading via Nuklear UI, sms probably still needs work
Michael Pavone <pavone@retrodev.com>
parents: 1478
diff changeset
1997 gen->m68k->should_return = 1;
a568dca999b2 Fix genesis save state loading via Nuklear UI, sms probably still needs work
Michael Pavone <pavone@retrodev.com>
parents: 1478
diff changeset
1998 ret = get_modification_time(statepath) != 0;
a568dca999b2 Fix genesis save state loading via Nuklear UI, sms probably still needs work
Michael Pavone <pavone@retrodev.com>
parents: 1478
diff changeset
1999 if (!ret) {
a568dca999b2 Fix genesis save state loading via Nuklear UI, sms probably still needs work
Michael Pavone <pavone@retrodev.com>
parents: 1478
diff changeset
2000 strcpy(statepath + strlen(statepath)-strlen("state"), "gst");
a568dca999b2 Fix genesis save state loading via Nuklear UI, sms probably still needs work
Michael Pavone <pavone@retrodev.com>
parents: 1478
diff changeset
2001 ret = get_modification_time(statepath) != 0;
a568dca999b2 Fix genesis save state loading via Nuklear UI, sms probably still needs work
Michael Pavone <pavone@retrodev.com>
parents: 1478
diff changeset
2002 }
a568dca999b2 Fix genesis save state loading via Nuklear UI, sms probably still needs work
Michael Pavone <pavone@retrodev.com>
parents: 1478
diff changeset
2003 goto done;
a568dca999b2 Fix genesis save state loading via Nuklear UI, sms probably still needs work
Michael Pavone <pavone@retrodev.com>
parents: 1478
diff changeset
2004 }
2500
d44fe974fb85 Get blastem compiling with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2499
diff changeset
2005 #endif
1433
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1428
diff changeset
2006 if (load_from_file(&state, statepath)) {
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1428
diff changeset
2007 genesis_deserialize(&state, gen);
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1428
diff changeset
2008 free(state.data);
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1428
diff changeset
2009 ret = 1;
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1428
diff changeset
2010 } else {
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1428
diff changeset
2011 strcpy(statepath + strlen(statepath)-strlen("state"), "gst");
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1428
diff changeset
2012 pc = load_gst(gen, statepath);
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1428
diff changeset
2013 ret = pc != 0;
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1428
diff changeset
2014 }
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1428
diff changeset
2015 if (ret) {
2280
9ead0fe69d9b Implement savestate support for Sega CD
Michael Pavone <pavone@retrodev.com>
parents: 2278
diff changeset
2016 debug_message("Loaded state from %s\n", statepath);
1433
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1428
diff changeset
2017 }
1479
a568dca999b2 Fix genesis save state loading via Nuklear UI, sms probably still needs work
Michael Pavone <pavone@retrodev.com>
parents: 1478
diff changeset
2018 done:
1433
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1428
diff changeset
2019 free(statepath);
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1428
diff changeset
2020 return ret;
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1428
diff changeset
2021 }
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1428
diff changeset
2022
1479
a568dca999b2 Fix genesis save state loading via Nuklear UI, sms probably still needs work
Michael Pavone <pavone@retrodev.com>
parents: 1478
diff changeset
2023 static void handle_reset_requests(genesis_context *gen)
a568dca999b2 Fix genesis save state loading via Nuklear UI, sms probably still needs work
Michael Pavone <pavone@retrodev.com>
parents: 1478
diff changeset
2024 {
a568dca999b2 Fix genesis save state loading via Nuklear UI, sms probably still needs work
Michael Pavone <pavone@retrodev.com>
parents: 1478
diff changeset
2025 while (gen->reset_requested || gen->header.delayed_load_slot)
a568dca999b2 Fix genesis save state loading via Nuklear UI, sms probably still needs work
Michael Pavone <pavone@retrodev.com>
parents: 1478
diff changeset
2026 {
a568dca999b2 Fix genesis save state loading via Nuklear UI, sms probably still needs work
Michael Pavone <pavone@retrodev.com>
parents: 1478
diff changeset
2027 if (gen->reset_requested) {
a568dca999b2 Fix genesis save state loading via Nuklear UI, sms probably still needs work
Michael Pavone <pavone@retrodev.com>
parents: 1478
diff changeset
2028 gen->reset_requested = 0;
1556
075df0844baa Randomize soft reset timing and fix silly bug that was accidentally clearing IO state on soft reset
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
2029 gen->m68k->should_return = 0;
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2030 if (gen->header.type == SYSTEM_GENESIS) {
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
2031 z80_assert_reset(gen->z80, gen->m68k->cycles);
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
2032 z80_clear_busreq(gen->z80, gen->m68k->cycles);
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2033 }
2459
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
2034 if (gen->header.type != SYSTEM_PICO && gen->header.type != SYSTEM_COPERA) {
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2035 ym_reset(gen->ym);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2036 }
1479
a568dca999b2 Fix genesis save state loading via Nuklear UI, sms probably still needs work
Michael Pavone <pavone@retrodev.com>
parents: 1478
diff changeset
2037 //Is there any sort of VDP reset?
a568dca999b2 Fix genesis save state loading via Nuklear UI, sms probably still needs work
Michael Pavone <pavone@retrodev.com>
parents: 1478
diff changeset
2038 m68k_reset(gen->m68k);
a568dca999b2 Fix genesis save state loading via Nuklear UI, sms probably still needs work
Michael Pavone <pavone@retrodev.com>
parents: 1478
diff changeset
2039 }
a568dca999b2 Fix genesis save state loading via Nuklear UI, sms probably still needs work
Michael Pavone <pavone@retrodev.com>
parents: 1478
diff changeset
2040 if (gen->header.delayed_load_slot) {
a568dca999b2 Fix genesis save state loading via Nuklear UI, sms probably still needs work
Michael Pavone <pavone@retrodev.com>
parents: 1478
diff changeset
2041 load_state(&gen->header, gen->header.delayed_load_slot - 1);
a568dca999b2 Fix genesis save state loading via Nuklear UI, sms probably still needs work
Michael Pavone <pavone@retrodev.com>
parents: 1478
diff changeset
2042 gen->header.delayed_load_slot = 0;
a568dca999b2 Fix genesis save state loading via Nuklear UI, sms probably still needs work
Michael Pavone <pavone@retrodev.com>
parents: 1478
diff changeset
2043 resume_68k(gen->m68k);
a568dca999b2 Fix genesis save state loading via Nuklear UI, sms probably still needs work
Michael Pavone <pavone@retrodev.com>
parents: 1478
diff changeset
2044 }
a568dca999b2 Fix genesis save state loading via Nuklear UI, sms probably still needs work
Michael Pavone <pavone@retrodev.com>
parents: 1478
diff changeset
2045 }
1980
81df9aa2de9b Less hacky run on audio thread mode
Michael Pavone <pavone@retrodev.com>
parents: 1971
diff changeset
2046 if (gen->header.force_release || render_should_release_on_exit()) {
1932
b387f1c5a1d0 WIP new sync mode that runs emulation on audio thread
Michael Pavone <pavone@retrodev.com>
parents: 1927
diff changeset
2047 bindings_release_capture();
b387f1c5a1d0 WIP new sync mode that runs emulation on audio thread
Michael Pavone <pavone@retrodev.com>
parents: 1927
diff changeset
2048 vdp_release_framebuffer(gen->vdp);
2459
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
2049 if (gen->header.type != SYSTEM_PICO && gen->header.type != SYSTEM_COPERA) {
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2050 render_pause_source(gen->ym->audio);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2051 }
1932
b387f1c5a1d0 WIP new sync mode that runs emulation on audio thread
Michael Pavone <pavone@retrodev.com>
parents: 1927
diff changeset
2052 render_pause_source(gen->psg->audio);
b387f1c5a1d0 WIP new sync mode that runs emulation on audio thread
Michael Pavone <pavone@retrodev.com>
parents: 1927
diff changeset
2053 }
1479
a568dca999b2 Fix genesis save state loading via Nuklear UI, sms probably still needs work
Michael Pavone <pavone@retrodev.com>
parents: 1478
diff changeset
2054 }
a568dca999b2 Fix genesis save state loading via Nuklear UI, sms probably still needs work
Michael Pavone <pavone@retrodev.com>
parents: 1478
diff changeset
2055
1111
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2056 static void start_genesis(system_header *system, char *statefile)
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2057 {
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2058 genesis_context *gen = (genesis_context *)system;
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2059 if (statefile) {
1428
2540c05520f2 New savestates are working. New config file option for selecting format states will be saved in. Mostly complete, needs a little more work before release
Michael Pavone <pavone@retrodev.com>
parents: 1427
diff changeset
2060 //first try loading as a native format savestate
2540c05520f2 New savestates are working. New config file option for selecting format states will be saved in. Mostly complete, needs a little more work before release
Michael Pavone <pavone@retrodev.com>
parents: 1427
diff changeset
2061 deserialize_buffer state;
2540c05520f2 New savestates are working. New config file option for selecting format states will be saved in. Mostly complete, needs a little more work before release
Michael Pavone <pavone@retrodev.com>
parents: 1427
diff changeset
2062 uint32_t pc;
2540c05520f2 New savestates are working. New config file option for selecting format states will be saved in. Mostly complete, needs a little more work before release
Michael Pavone <pavone@retrodev.com>
parents: 1427
diff changeset
2063 if (load_from_file(&state, statefile)) {
1427
4e5797b3935a WIP - New savestate format
Michael Pavone <pavone@retrodev.com>
parents: 1420
diff changeset
2064 genesis_deserialize(&state, gen);
1428
2540c05520f2 New savestates are working. New config file option for selecting format states will be saved in. Mostly complete, needs a little more work before release
Michael Pavone <pavone@retrodev.com>
parents: 1427
diff changeset
2065 free(state.data);
2500
d44fe974fb85 Get blastem compiling with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2499
diff changeset
2066 #ifdef NEW_CORE
d44fe974fb85 Get blastem compiling with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2499
diff changeset
2067 pc = gen->m68k->pc;
d44fe974fb85 Get blastem compiling with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2499
diff changeset
2068 #else
1427
4e5797b3935a WIP - New savestate format
Michael Pavone <pavone@retrodev.com>
parents: 1420
diff changeset
2069 //HACK
4e5797b3935a WIP - New savestate format
Michael Pavone <pavone@retrodev.com>
parents: 1420
diff changeset
2070 pc = gen->m68k->last_prefetch_address;
2500
d44fe974fb85 Get blastem compiling with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2499
diff changeset
2071 #endif
1428
2540c05520f2 New savestates are working. New config file option for selecting format states will be saved in. Mostly complete, needs a little more work before release
Michael Pavone <pavone@retrodev.com>
parents: 1427
diff changeset
2072 } else {
2540c05520f2 New savestates are working. New config file option for selecting format states will be saved in. Mostly complete, needs a little more work before release
Michael Pavone <pavone@retrodev.com>
parents: 1427
diff changeset
2073 pc = load_gst(gen, statefile);
2540c05520f2 New savestates are working. New config file option for selecting format states will be saved in. Mostly complete, needs a little more work before release
Michael Pavone <pavone@retrodev.com>
parents: 1427
diff changeset
2074 if (!pc) {
2540c05520f2 New savestates are working. New config file option for selecting format states will be saved in. Mostly complete, needs a little more work before release
Michael Pavone <pavone@retrodev.com>
parents: 1427
diff changeset
2075 fatal_error("Failed to load save state %s\n", statefile);
2540c05520f2 New savestates are working. New config file option for selecting format states will be saved in. Mostly complete, needs a little more work before release
Michael Pavone <pavone@retrodev.com>
parents: 1427
diff changeset
2076 }
1111
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2077 }
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2078 printf("Loaded %s\n", statefile);
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2079 if (gen->header.enter_debugger) {
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2080 gen->header.enter_debugger = 0;
2302
0343f0d5add0 Fix libretro build for real
Michael Pavone <pavone@retrodev.com>
parents: 2286
diff changeset
2081 #ifndef IS_LIB
1111
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2082 insert_breakpoint(gen->m68k, pc, gen->header.debugger_type == DEBUGGER_NATIVE ? debugger : gdb_debug_enter);
2302
0343f0d5add0 Fix libretro build for real
Michael Pavone <pavone@retrodev.com>
parents: 2286
diff changeset
2083 #endif
1111
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2084 }
2459
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
2085 if (gen->header.type == SYSTEM_PICO || gen->header.type == SYSTEM_COPERA) {
2431
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
2086 adjust_int_cycle_pico(gen->m68k, gen->vdp);
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
2087 } else {
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
2088 adjust_int_cycle(gen->m68k, gen->vdp);
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
2089 }
1111
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2090 start_68k_context(gen->m68k, pc);
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2091 } else {
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2092 if (gen->header.enter_debugger) {
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2093 gen->header.enter_debugger = 0;
2302
0343f0d5add0 Fix libretro build for real
Michael Pavone <pavone@retrodev.com>
parents: 2286
diff changeset
2094 #ifndef IS_LIB
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
2095 uint32_t address = read_word(4, (void **)gen->m68k->mem_pointers, &gen->m68k->opts->gen, gen->m68k) << 16
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
2096 | read_word(6, (void **)gen->m68k->mem_pointers, &gen->m68k->opts->gen, gen->m68k);
1111
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2097 insert_breakpoint(gen->m68k, address, gen->header.debugger_type == DEBUGGER_NATIVE ? debugger : gdb_debug_enter);
2302
0343f0d5add0 Fix libretro build for real
Michael Pavone <pavone@retrodev.com>
parents: 2286
diff changeset
2098 #endif
1111
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2099 }
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2100 m68k_reset(gen->m68k);
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2101 }
2500
d44fe974fb85 Get blastem compiling with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2499
diff changeset
2102 #ifdef NEW_CORE
d44fe974fb85 Get blastem compiling with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2499
diff changeset
2103 while (!gen->m68k->should_return) {
2673
2c8f541af3c5 Get Pico games running with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2654
diff changeset
2104 if (gen->header.type == SYSTEM_PICO || gen->header.type == SYSTEM_COPERA) {
2c8f541af3c5 Get Pico games running with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2654
diff changeset
2105 sync_components_pico(gen->m68k, gen->m68k->pc);
2c8f541af3c5 Get Pico games running with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2654
diff changeset
2106 } else {
2c8f541af3c5 Get Pico games running with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2654
diff changeset
2107 sync_components(gen->m68k, gen->m68k->pc);
2c8f541af3c5 Get Pico games running with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2654
diff changeset
2108 }
2500
d44fe974fb85 Get blastem compiling with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2499
diff changeset
2109 m68k_execute(gen->m68k, gen->m68k->target_cycle);
d44fe974fb85 Get blastem compiling with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2499
diff changeset
2110 }
2600
251cc75574af Basic emscripten support
Michael Pavone <pavone@retrodev.com>
parents: 2577
diff changeset
2111 gen->m68k->should_return = 0;
2500
d44fe974fb85 Get blastem compiling with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2499
diff changeset
2112 #endif
1208
95f5253e75c7 Implement soft reset in Genesis mode
Michael Pavone <pavone@retrodev.com>
parents: 1204
diff changeset
2113 handle_reset_requests(gen);
1427
4e5797b3935a WIP - New savestate format
Michael Pavone <pavone@retrodev.com>
parents: 1420
diff changeset
2114 return;
1111
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2115 }
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2116
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2117 static void resume_genesis(system_header *system)
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2118 {
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2119 genesis_context *gen = (genesis_context *)system;
1980
81df9aa2de9b Less hacky run on audio thread mode
Michael Pavone <pavone@retrodev.com>
parents: 1971
diff changeset
2120 if (gen->header.force_release || render_should_release_on_exit()) {
81df9aa2de9b Less hacky run on audio thread mode
Michael Pavone <pavone@retrodev.com>
parents: 1971
diff changeset
2121 gen->header.force_release = 0;
2459
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
2122 if (gen->header.type == SYSTEM_PICO || gen->header.type == SYSTEM_COPERA) {
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2123 render_set_video_standard((gen->version_reg & 0x60) == 0x20 ? VID_PAL : VID_NTSC);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2124 } else {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2125 render_set_video_standard((gen->version_reg & HZ50) ? VID_PAL : VID_NTSC);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2126 }
1932
b387f1c5a1d0 WIP new sync mode that runs emulation on audio thread
Michael Pavone <pavone@retrodev.com>
parents: 1927
diff changeset
2127 bindings_reacquire_capture();
b387f1c5a1d0 WIP new sync mode that runs emulation on audio thread
Michael Pavone <pavone@retrodev.com>
parents: 1927
diff changeset
2128 vdp_reacquire_framebuffer(gen->vdp);
2459
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
2129 if (gen->header.type != SYSTEM_PICO && gen->header.type != SYSTEM_COPERA) {
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2130 render_resume_source(gen->ym->audio);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2131 }
1932
b387f1c5a1d0 WIP new sync mode that runs emulation on audio thread
Michael Pavone <pavone@retrodev.com>
parents: 1927
diff changeset
2132 render_resume_source(gen->psg->audio);
b387f1c5a1d0 WIP new sync mode that runs emulation on audio thread
Michael Pavone <pavone@retrodev.com>
parents: 1927
diff changeset
2133 }
2600
251cc75574af Basic emscripten support
Michael Pavone <pavone@retrodev.com>
parents: 2577
diff changeset
2134 #ifdef NEW_CORE
251cc75574af Basic emscripten support
Michael Pavone <pavone@retrodev.com>
parents: 2577
diff changeset
2135 while (!gen->m68k->should_return) {
2673
2c8f541af3c5 Get Pico games running with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2654
diff changeset
2136 if (gen->header.type == SYSTEM_PICO || gen->header.type == SYSTEM_COPERA) {
2c8f541af3c5 Get Pico games running with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2654
diff changeset
2137 sync_components_pico(gen->m68k, gen->m68k->pc);
2c8f541af3c5 Get Pico games running with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2654
diff changeset
2138 } else {
2c8f541af3c5 Get Pico games running with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2654
diff changeset
2139 sync_components(gen->m68k, gen->m68k->pc);
2c8f541af3c5 Get Pico games running with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2654
diff changeset
2140 }
2600
251cc75574af Basic emscripten support
Michael Pavone <pavone@retrodev.com>
parents: 2577
diff changeset
2141 m68k_execute(gen->m68k, gen->m68k->target_cycle);
251cc75574af Basic emscripten support
Michael Pavone <pavone@retrodev.com>
parents: 2577
diff changeset
2142 }
251cc75574af Basic emscripten support
Michael Pavone <pavone@retrodev.com>
parents: 2577
diff changeset
2143 gen->m68k->should_return = 0;
251cc75574af Basic emscripten support
Michael Pavone <pavone@retrodev.com>
parents: 2577
diff changeset
2144 #else
1111
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2145 resume_68k(gen->m68k);
2600
251cc75574af Basic emscripten support
Michael Pavone <pavone@retrodev.com>
parents: 2577
diff changeset
2146 #endif
1208
95f5253e75c7 Implement soft reset in Genesis mode
Michael Pavone <pavone@retrodev.com>
parents: 1204
diff changeset
2147 handle_reset_requests(gen);
1111
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2148 }
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2149
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2150 static void inc_debug_mode(system_header *system)
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2151 {
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2152 genesis_context *gen = (genesis_context *)system;
1631
c4ba3177b72d WIP new VDP plane debug view and support for detached VDP debug views generally
Michael Pavone <pavone@retrodev.com>
parents: 1610
diff changeset
2153 vdp_inc_debug_mode(gen->vdp);
1111
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2154 }
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2155
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2156 static void request_exit(system_header *system)
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2157 {
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2158 genesis_context *gen = (genesis_context *)system;
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
2159 gen->m68k->target_cycle = gen->m68k->cycles;
1111
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2160 gen->m68k->should_return = 1;
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2161 }
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2162
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2163 static void persist_save(system_header *system)
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2164 {
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2165 genesis_context *gen = (genesis_context *)system;
2083
372625dd9590 Persist BRAM to file. Load BIOS relative to blastem directory
Michael Pavone <pavone@retrodev.com>
parents: 2080
diff changeset
2166 FILE *f;
372625dd9590 Persist BRAM to file. Load BIOS relative to blastem directory
Michael Pavone <pavone@retrodev.com>
parents: 2080
diff changeset
2167 if (gen->expansion) {
372625dd9590 Persist BRAM to file. Load BIOS relative to blastem directory
Michael Pavone <pavone@retrodev.com>
parents: 2080
diff changeset
2168 segacd_context *cd = gen->expansion;
372625dd9590 Persist BRAM to file. Load BIOS relative to blastem directory
Michael Pavone <pavone@retrodev.com>
parents: 2080
diff changeset
2169 char *bram_name = path_append(system->save_dir, "internal.bram");
372625dd9590 Persist BRAM to file. Load BIOS relative to blastem directory
Michael Pavone <pavone@retrodev.com>
parents: 2080
diff changeset
2170 f = fopen(bram_name, "wb");
372625dd9590 Persist BRAM to file. Load BIOS relative to blastem directory
Michael Pavone <pavone@retrodev.com>
parents: 2080
diff changeset
2171 if (f) {
372625dd9590 Persist BRAM to file. Load BIOS relative to blastem directory
Michael Pavone <pavone@retrodev.com>
parents: 2080
diff changeset
2172 fwrite(cd->bram, 1, 8 * 1024, f);
372625dd9590 Persist BRAM to file. Load BIOS relative to blastem directory
Michael Pavone <pavone@retrodev.com>
parents: 2080
diff changeset
2173 fclose(f);
372625dd9590 Persist BRAM to file. Load BIOS relative to blastem directory
Michael Pavone <pavone@retrodev.com>
parents: 2080
diff changeset
2174 printf("Saved internal BRAM to %s\n", bram_name);
372625dd9590 Persist BRAM to file. Load BIOS relative to blastem directory
Michael Pavone <pavone@retrodev.com>
parents: 2080
diff changeset
2175 }
372625dd9590 Persist BRAM to file. Load BIOS relative to blastem directory
Michael Pavone <pavone@retrodev.com>
parents: 2080
diff changeset
2176 free(bram_name);
2281
b9fed07f19e4 Implement BRAM cart support
Michael Pavone <pavone@retrodev.com>
parents: 2280
diff changeset
2177 if (cd->bram_cart_id < 8) {
b9fed07f19e4 Implement BRAM cart support
Michael Pavone <pavone@retrodev.com>
parents: 2280
diff changeset
2178 bram_name = path_append(system->save_dir, "cart.bram");
b9fed07f19e4 Implement BRAM cart support
Michael Pavone <pavone@retrodev.com>
parents: 2280
diff changeset
2179 f = fopen(bram_name, "wb");
b9fed07f19e4 Implement BRAM cart support
Michael Pavone <pavone@retrodev.com>
parents: 2280
diff changeset
2180 if (f) {
b9fed07f19e4 Implement BRAM cart support
Michael Pavone <pavone@retrodev.com>
parents: 2280
diff changeset
2181 long configured_size = 0x2000 << cd->bram_cart_id;
b9fed07f19e4 Implement BRAM cart support
Michael Pavone <pavone@retrodev.com>
parents: 2280
diff changeset
2182 fwrite(cd->bram_cart, 1, configured_size, f);
b9fed07f19e4 Implement BRAM cart support
Michael Pavone <pavone@retrodev.com>
parents: 2280
diff changeset
2183 fclose(f);
b9fed07f19e4 Implement BRAM cart support
Michael Pavone <pavone@retrodev.com>
parents: 2280
diff changeset
2184 printf("Saved BRAM cart to %s\n", bram_name);
b9fed07f19e4 Implement BRAM cart support
Michael Pavone <pavone@retrodev.com>
parents: 2280
diff changeset
2185 }
b9fed07f19e4 Implement BRAM cart support
Michael Pavone <pavone@retrodev.com>
parents: 2280
diff changeset
2186 free(bram_name);
b9fed07f19e4 Implement BRAM cart support
Michael Pavone <pavone@retrodev.com>
parents: 2280
diff changeset
2187 }
2083
372625dd9590 Persist BRAM to file. Load BIOS relative to blastem directory
Michael Pavone <pavone@retrodev.com>
parents: 2080
diff changeset
2188 }
1111
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2189 if (gen->save_type == SAVE_NONE) {
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2190 return;
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2191 }
2083
372625dd9590 Persist BRAM to file. Load BIOS relative to blastem directory
Michael Pavone <pavone@retrodev.com>
parents: 2080
diff changeset
2192 f = fopen(save_filename, "wb");
1111
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2193 if (!f) {
1395
efa7225e0f07 Initial work to support parallel NOR flash and the Magistr 16
Michael Pavone <pavone@retrodev.com>
parents: 1377
diff changeset
2194 fprintf(stderr, "Failed to open %s file %s for writing\n", save_type_name(gen->save_type), save_filename);
1111
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2195 return;
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2196 }
1848
ef3d368d59b0 16-bit wide save RAM is stored in memory byteswapped for performance reasons, but saving it to disc that way isn't great. Swap before save/after load to fix
Michael Pavone <pavone@retrodev.com>
parents: 1798
diff changeset
2197 if (gen->save_type == RAM_FLAG_BOTH) {
ef3d368d59b0 16-bit wide save RAM is stored in memory byteswapped for performance reasons, but saving it to disc that way isn't great. Swap before save/after load to fix
Michael Pavone <pavone@retrodev.com>
parents: 1798
diff changeset
2198 byteswap_rom(gen->save_size, (uint16_t *)gen->save_storage);
ef3d368d59b0 16-bit wide save RAM is stored in memory byteswapped for performance reasons, but saving it to disc that way isn't great. Swap before save/after load to fix
Michael Pavone <pavone@retrodev.com>
parents: 1798
diff changeset
2199 }
1111
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2200 fwrite(gen->save_storage, 1, gen->save_size, f);
1848
ef3d368d59b0 16-bit wide save RAM is stored in memory byteswapped for performance reasons, but saving it to disc that way isn't great. Swap before save/after load to fix
Michael Pavone <pavone@retrodev.com>
parents: 1798
diff changeset
2201 if (gen->save_type == RAM_FLAG_BOTH) {
ef3d368d59b0 16-bit wide save RAM is stored in memory byteswapped for performance reasons, but saving it to disc that way isn't great. Swap before save/after load to fix
Michael Pavone <pavone@retrodev.com>
parents: 1798
diff changeset
2202 byteswap_rom(gen->save_size, (uint16_t *)gen->save_storage);
ef3d368d59b0 16-bit wide save RAM is stored in memory byteswapped for performance reasons, but saving it to disc that way isn't great. Swap before save/after load to fix
Michael Pavone <pavone@retrodev.com>
parents: 1798
diff changeset
2203 }
1111
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2204 fclose(f);
1395
efa7225e0f07 Initial work to support parallel NOR flash and the Magistr 16
Michael Pavone <pavone@retrodev.com>
parents: 1377
diff changeset
2205 printf("Saved %s to %s\n", save_type_name(gen->save_type), save_filename);
1111
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2206 }
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2207
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2208 static void load_save(system_header *system)
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2209 {
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2210 genesis_context *gen = (genesis_context *)system;
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2211 FILE * f = fopen(save_filename, "rb");
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2212 if (f) {
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2213 uint32_t read = fread(gen->save_storage, 1, gen->save_size, f);
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2214 fclose(f);
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2215 if (read > 0) {
1848
ef3d368d59b0 16-bit wide save RAM is stored in memory byteswapped for performance reasons, but saving it to disc that way isn't great. Swap before save/after load to fix
Michael Pavone <pavone@retrodev.com>
parents: 1798
diff changeset
2216 if (gen->save_type == RAM_FLAG_BOTH) {
ef3d368d59b0 16-bit wide save RAM is stored in memory byteswapped for performance reasons, but saving it to disc that way isn't great. Swap before save/after load to fix
Michael Pavone <pavone@retrodev.com>
parents: 1798
diff changeset
2217 byteswap_rom(gen->save_size, (uint16_t *)gen->save_storage);
ef3d368d59b0 16-bit wide save RAM is stored in memory byteswapped for performance reasons, but saving it to disc that way isn't great. Swap before save/after load to fix
Michael Pavone <pavone@retrodev.com>
parents: 1798
diff changeset
2218 }
1395
efa7225e0f07 Initial work to support parallel NOR flash and the Magistr 16
Michael Pavone <pavone@retrodev.com>
parents: 1377
diff changeset
2219 printf("Loaded %s from %s\n", save_type_name(gen->save_type), save_filename);
1111
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2220 }
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2221 }
2083
372625dd9590 Persist BRAM to file. Load BIOS relative to blastem directory
Michael Pavone <pavone@retrodev.com>
parents: 2080
diff changeset
2222 if (gen->expansion) {
372625dd9590 Persist BRAM to file. Load BIOS relative to blastem directory
Michael Pavone <pavone@retrodev.com>
parents: 2080
diff changeset
2223 segacd_context *cd = gen->expansion;
372625dd9590 Persist BRAM to file. Load BIOS relative to blastem directory
Michael Pavone <pavone@retrodev.com>
parents: 2080
diff changeset
2224 char *bram_name = path_append(system->save_dir, "internal.bram");
372625dd9590 Persist BRAM to file. Load BIOS relative to blastem directory
Michael Pavone <pavone@retrodev.com>
parents: 2080
diff changeset
2225 f = fopen(bram_name, "rb");
372625dd9590 Persist BRAM to file. Load BIOS relative to blastem directory
Michael Pavone <pavone@retrodev.com>
parents: 2080
diff changeset
2226 if (f) {
372625dd9590 Persist BRAM to file. Load BIOS relative to blastem directory
Michael Pavone <pavone@retrodev.com>
parents: 2080
diff changeset
2227 uint32_t read = fread(cd->bram, 1, 8 * 1024, f);
372625dd9590 Persist BRAM to file. Load BIOS relative to blastem directory
Michael Pavone <pavone@retrodev.com>
parents: 2080
diff changeset
2228 fclose(f);
372625dd9590 Persist BRAM to file. Load BIOS relative to blastem directory
Michael Pavone <pavone@retrodev.com>
parents: 2080
diff changeset
2229 if (read > 0) {
372625dd9590 Persist BRAM to file. Load BIOS relative to blastem directory
Michael Pavone <pavone@retrodev.com>
parents: 2080
diff changeset
2230 printf("Loaded internal BRAM from %s\n", bram_name);
372625dd9590 Persist BRAM to file. Load BIOS relative to blastem directory
Michael Pavone <pavone@retrodev.com>
parents: 2080
diff changeset
2231 }
2335
c05b7c5e6f11 Automatically format Sega CD backup RAM
Michael Pavone <pavone@retrodev.com>
parents: 2327
diff changeset
2232 } else {
c05b7c5e6f11 Automatically format Sega CD backup RAM
Michael Pavone <pavone@retrodev.com>
parents: 2327
diff changeset
2233 segacd_format_bram(cd->bram, 8 * 1024);
2083
372625dd9590 Persist BRAM to file. Load BIOS relative to blastem directory
Michael Pavone <pavone@retrodev.com>
parents: 2080
diff changeset
2234 }
372625dd9590 Persist BRAM to file. Load BIOS relative to blastem directory
Michael Pavone <pavone@retrodev.com>
parents: 2080
diff changeset
2235 free(bram_name);
2281
b9fed07f19e4 Implement BRAM cart support
Michael Pavone <pavone@retrodev.com>
parents: 2280
diff changeset
2236 bram_name = path_append(system->save_dir, "cart.bram");
b9fed07f19e4 Implement BRAM cart support
Michael Pavone <pavone@retrodev.com>
parents: 2280
diff changeset
2237 f = fopen(bram_name, "rb");
2335
c05b7c5e6f11 Automatically format Sega CD backup RAM
Michael Pavone <pavone@retrodev.com>
parents: 2327
diff changeset
2238 long configured_size = 0x2000 << cd->bram_cart_id;
2281
b9fed07f19e4 Implement BRAM cart support
Michael Pavone <pavone@retrodev.com>
parents: 2280
diff changeset
2239 if (f) {
b9fed07f19e4 Implement BRAM cart support
Michael Pavone <pavone@retrodev.com>
parents: 2280
diff changeset
2240 long existing_size = nearest_pow2(file_size(f));
b9fed07f19e4 Implement BRAM cart support
Michael Pavone <pavone@retrodev.com>
parents: 2280
diff changeset
2241 if (existing_size > 1 * 1024 * 1024) {
b9fed07f19e4 Implement BRAM cart support
Michael Pavone <pavone@retrodev.com>
parents: 2280
diff changeset
2242 existing_size = 1 * 1024 * 1024;
b9fed07f19e4 Implement BRAM cart support
Michael Pavone <pavone@retrodev.com>
parents: 2280
diff changeset
2243 }
b9fed07f19e4 Implement BRAM cart support
Michael Pavone <pavone@retrodev.com>
parents: 2280
diff changeset
2244 if (existing_size != configured_size) {
b9fed07f19e4 Implement BRAM cart support
Michael Pavone <pavone@retrodev.com>
parents: 2280
diff changeset
2245 if (existing_size > configured_size) {
b9fed07f19e4 Implement BRAM cart support
Michael Pavone <pavone@retrodev.com>
parents: 2280
diff changeset
2246 free(cd->bram_cart);
b9fed07f19e4 Implement BRAM cart support
Michael Pavone <pavone@retrodev.com>
parents: 2280
diff changeset
2247 cd->bram_cart = calloc(existing_size, 1);
b9fed07f19e4 Implement BRAM cart support
Michael Pavone <pavone@retrodev.com>
parents: 2280
diff changeset
2248 }
b9fed07f19e4 Implement BRAM cart support
Michael Pavone <pavone@retrodev.com>
parents: 2280
diff changeset
2249 cd->bram_cart_id = 0;
b9fed07f19e4 Implement BRAM cart support
Michael Pavone <pavone@retrodev.com>
parents: 2280
diff changeset
2250 while (existing_size > (0x2000 <<cd->bram_cart_id)) {
b9fed07f19e4 Implement BRAM cart support
Michael Pavone <pavone@retrodev.com>
parents: 2280
diff changeset
2251 cd->bram_cart_id++;
b9fed07f19e4 Implement BRAM cart support
Michael Pavone <pavone@retrodev.com>
parents: 2280
diff changeset
2252 }
b9fed07f19e4 Implement BRAM cart support
Michael Pavone <pavone@retrodev.com>
parents: 2280
diff changeset
2253 }
b9fed07f19e4 Implement BRAM cart support
Michael Pavone <pavone@retrodev.com>
parents: 2280
diff changeset
2254 uint32_t read = fread(cd->bram_cart, 1, existing_size, f);
b9fed07f19e4 Implement BRAM cart support
Michael Pavone <pavone@retrodev.com>
parents: 2280
diff changeset
2255 fclose(f);
b9fed07f19e4 Implement BRAM cart support
Michael Pavone <pavone@retrodev.com>
parents: 2280
diff changeset
2256 if (read > 0) {
b9fed07f19e4 Implement BRAM cart support
Michael Pavone <pavone@retrodev.com>
parents: 2280
diff changeset
2257 printf("Loaded BRAM cart from %s\n", bram_name);
b9fed07f19e4 Implement BRAM cart support
Michael Pavone <pavone@retrodev.com>
parents: 2280
diff changeset
2258 }
2335
c05b7c5e6f11 Automatically format Sega CD backup RAM
Michael Pavone <pavone@retrodev.com>
parents: 2327
diff changeset
2259 } else {
c05b7c5e6f11 Automatically format Sega CD backup RAM
Michael Pavone <pavone@retrodev.com>
parents: 2327
diff changeset
2260 segacd_format_bram(cd->bram_cart, configured_size);
2281
b9fed07f19e4 Implement BRAM cart support
Michael Pavone <pavone@retrodev.com>
parents: 2280
diff changeset
2261 }
b9fed07f19e4 Implement BRAM cart support
Michael Pavone <pavone@retrodev.com>
parents: 2280
diff changeset
2262 free(bram_name);
2083
372625dd9590 Persist BRAM to file. Load BIOS relative to blastem directory
Michael Pavone <pavone@retrodev.com>
parents: 2080
diff changeset
2263 }
1111
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2264 }
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2265
1208
95f5253e75c7 Implement soft reset in Genesis mode
Michael Pavone <pavone@retrodev.com>
parents: 1204
diff changeset
2266 static void soft_reset(system_header *system)
95f5253e75c7 Implement soft reset in Genesis mode
Michael Pavone <pavone@retrodev.com>
parents: 1204
diff changeset
2267 {
95f5253e75c7 Implement soft reset in Genesis mode
Michael Pavone <pavone@retrodev.com>
parents: 1204
diff changeset
2268 genesis_context *gen = (genesis_context *)system;
1556
075df0844baa Randomize soft reset timing and fix silly bug that was accidentally clearing IO state on soft reset
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
2269 if (gen->reset_cycle == CYCLE_NEVER) {
075df0844baa Randomize soft reset timing and fix silly bug that was accidentally clearing IO state on soft reset
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
2270 double random = (double)rand()/(double)RAND_MAX;
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
2271 gen->reset_cycle = gen->m68k->cycles + random * MCLKS_LINE * (gen->version_reg & HZ50 ? LINES_PAL : LINES_NTSC);
1556
075df0844baa Randomize soft reset timing and fix silly bug that was accidentally clearing IO state on soft reset
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
2272 if (gen->reset_cycle < gen->m68k->target_cycle) {
075df0844baa Randomize soft reset timing and fix silly bug that was accidentally clearing IO state on soft reset
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
2273 gen->m68k->target_cycle = gen->reset_cycle;
075df0844baa Randomize soft reset timing and fix silly bug that was accidentally clearing IO state on soft reset
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
2274 }
075df0844baa Randomize soft reset timing and fix silly bug that was accidentally clearing IO state on soft reset
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
2275 }
1208
95f5253e75c7 Implement soft reset in Genesis mode
Michael Pavone <pavone@retrodev.com>
parents: 1204
diff changeset
2276 }
95f5253e75c7 Implement soft reset in Genesis mode
Michael Pavone <pavone@retrodev.com>
parents: 1204
diff changeset
2277
1111
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2278 static void free_genesis(system_header *system)
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2279 {
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2280 genesis_context *gen = (genesis_context *)system;
2164
4fbe1e7c4a73 Don't leak all Sega CD resources when freeing a Genesis instance
Michael Pavone <pavone@retrodev.com>
parents: 2150
diff changeset
2281 if (gen->expansion) {
4fbe1e7c4a73 Don't leak all Sega CD resources when freeing a Genesis instance
Michael Pavone <pavone@retrodev.com>
parents: 2150
diff changeset
2282 free_segacd(gen->expansion);
4fbe1e7c4a73 Don't leak all Sega CD resources when freeing a Genesis instance
Michael Pavone <pavone@retrodev.com>
parents: 2150
diff changeset
2283 }
1111
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2284 vdp_free(gen->vdp);
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
2285 memmap_chunk *map = (memmap_chunk *)gen->m68k->opts->gen.memmap;
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
2286 m68k_options_free(gen->m68k->opts);
1116
fe8c79f82c22 More cleanup in preparation for SMS/Mark III support
Michael Pavone <pavone@retrodev.com>
parents: 1113
diff changeset
2287 free(gen->cart);
1111
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2288 free(gen->m68k);
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2289 free(gen->work_ram);
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2290 if (gen->header.type == SYSTEM_GENESIS) {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2291 z80_options_free(gen->z80->Z80_OPTS);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2292 free(gen->z80);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2293 free(gen->zram);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2294 }
2459
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
2295 if (gen->header.type == SYSTEM_PICO || gen->header.type == SYSTEM_COPERA) {
2431
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
2296 pico_pcm_free(gen->adpcm);
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
2297 free(gen->adpcm);
2460
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
2298 if (gen->ymz) {
2486
e8eba0cd5444 Implement turbo/slow for Pico and Copera
Michael Pavone <pavone@retrodev.com>
parents: 2485
diff changeset
2299 ymz263b_free(gen->ymz);
2460
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
2300 free(gen->ymz);
2558
3f58fec775df Initial work on YMF262 (aka OPL3) emulation
Michael Pavone <pavone@retrodev.com>
parents: 2556
diff changeset
2301 ymf262_free(gen->opl);
2460
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
2302 }
2431
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
2303 } else {
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2304 ym_free(gen->ym);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2305 }
1111
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2306 psg_free(gen->psg);
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2307 free(gen->header.save_dir);
1595
360d5bab199f Update controller config when changed in UI without restart
Michael Pavone <pavone@retrodev.com>
parents: 1593
diff changeset
2308 free_rom_info(&gen->header.info);
1111
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2309 free(gen->lock_on);
2052
3748a2a8a4b7 Support Sega mapper without 'SEGA SSF' in header or ROM DB entry and implement a subset of the extended Sega mapper implemented in the Mega Everdrive when 'SEGA SSF' is present
Michael Pavone <pavone@retrodev.com>
parents: 2039
diff changeset
2310 if (gen->save_type != SAVE_NONE && gen->mapper_type != MAPPER_SEGA_MED_V2) {
3748a2a8a4b7 Support Sega mapper without 'SEGA SSF' in header or ROM DB entry and implement a subset of the extended Sega mapper implemented in the Mega Everdrive when 'SEGA SSF' is present
Michael Pavone <pavone@retrodev.com>
parents: 2039
diff changeset
2311 free(gen->save_storage);
3748a2a8a4b7 Support Sega mapper without 'SEGA SSF' in header or ROM DB entry and implement a subset of the extended Sega mapper implemented in the Mega Everdrive when 'SEGA SSF' is present
Michael Pavone <pavone@retrodev.com>
parents: 2039
diff changeset
2312 }
2248
f7e2e11f1214 Fix improper free of memory map array from rom_info
Michael Pavone <pavone@retrodev.com>
parents: 2243
diff changeset
2313 free(map);
1116
fe8c79f82c22 More cleanup in preparation for SMS/Mark III support
Michael Pavone <pavone@retrodev.com>
parents: 1113
diff changeset
2314 free(gen);
1111
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2315 }
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2316
1583
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2317 static void gamepad_down(system_header *system, uint8_t gamepad_num, uint8_t button)
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2318 {
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2319 genesis_context *gen = (genesis_context *)system;
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2320 io_gamepad_down(&gen->io, gamepad_num, button);
1610
c206a422d466 Added J-Cart support
Michael Pavone <pavone@retrodev.com>
parents: 1595
diff changeset
2321 if (gen->mapper_type == MAPPER_JCART) {
c206a422d466 Added J-Cart support
Michael Pavone <pavone@retrodev.com>
parents: 1595
diff changeset
2322 jcart_gamepad_down(gen, gamepad_num, button);
c206a422d466 Added J-Cart support
Michael Pavone <pavone@retrodev.com>
parents: 1595
diff changeset
2323 }
1583
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2324 }
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2325
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2326 static void gamepad_up(system_header *system, uint8_t gamepad_num, uint8_t button)
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2327 {
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2328 genesis_context *gen = (genesis_context *)system;
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2329 io_gamepad_up(&gen->io, gamepad_num, button);
1610
c206a422d466 Added J-Cart support
Michael Pavone <pavone@retrodev.com>
parents: 1595
diff changeset
2330 if (gen->mapper_type == MAPPER_JCART) {
c206a422d466 Added J-Cart support
Michael Pavone <pavone@retrodev.com>
parents: 1595
diff changeset
2331 jcart_gamepad_up(gen, gamepad_num, button);
c206a422d466 Added J-Cart support
Michael Pavone <pavone@retrodev.com>
parents: 1595
diff changeset
2332 }
1583
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2333 }
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2334
2429
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
2335 static void pico_update_page(genesis_context *gen)
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
2336 {
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
2337 #ifndef IS_LIB
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
2338 uint8_t page_num = 0;
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
2339 uint8_t page = gen->pico_page;
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
2340 while (page)
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
2341 {
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
2342 page_num++;
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
2343 page >>= 1;
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
2344 }
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
2345 render_clear_window(gen->pico_story_window, 236, 205, 27);
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
2346 int x, width;
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
2347 if (page_num) {
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
2348 x = 0;
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
2349 width = 640;
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
2350 } else {
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
2351 render_fill_rect(gen->pico_story_window, 50, 29, 96, 0, 0, 320, 320);
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
2352 x = 320;
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
2353 width = 320;
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
2354 }
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
2355 if (gen->pico_story_pages[page_num] == 0xFF && page_num == 6 && gen->pico_story_pages[page_num - 1]) {
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
2356 //repeat last page if storybook doesn't have a full 6 pages
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
2357 //hack to deal with storybooks that skip page 5
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
2358 page_num--;
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
2359 }
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
2360 if (gen->pico_story_pages[page_num] != 0xFF) {
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
2361 render_draw_image(gen->pico_story_window, gen->pico_story_pages[page_num], x, 0, width, 320);
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
2362 } else {
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
2363 uint8_t grey = page * (255 / 5);
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
2364 render_fill_rect(gen->pico_story_window, grey, grey, grey, x, 0, width, 320);
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
2365 }
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
2366 render_window_refresh(gen->pico_story_window);
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
2367 #endif
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
2368 }
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
2369
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2370 static void gamepad_down_pico(system_header *system, uint8_t gamepad_num, uint8_t button)
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2371 {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2372 genesis_context *gen = (genesis_context *)system;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2373 if (gamepad_num != 1) {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2374 return;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2375 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2376 //TODO: storyware display
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2377 if (button == BUTTON_C) {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2378 gen->pico_page <<= 1;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2379 gen->pico_page |= 1;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2380 gen->pico_page &= 0x3F;
2429
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
2381 pico_update_page(gen);
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2382 } else if (button == BUTTON_Z) {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2383 gen->pico_page >>= 1;
2429
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
2384 pico_update_page(gen);
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2385 } else if (button < BUTTON_B) {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2386 gen->pico_button_state &= ~(1 << (button - 1));
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2387 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2388 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2389
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2390 static void gamepad_up_pico(system_header *system, uint8_t gamepad_num, uint8_t button)
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2391 {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2392 genesis_context *gen = (genesis_context *)system;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2393 if (gamepad_num != 1) {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2394 return;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2395 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2396 if (button < BUTTON_B) {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2397 gen->pico_button_state |= 1 << (button - 1);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2398 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2399 return;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2400 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2401
1583
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2402 static void mouse_down(system_header *system, uint8_t mouse_num, uint8_t button)
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2403 {
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2404 genesis_context *gen = (genesis_context *)system;
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2405 io_mouse_down(&gen->io, mouse_num, button);
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2406 }
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2407
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2408 static void mouse_up(system_header *system, uint8_t mouse_num, uint8_t button)
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2409 {
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2410 genesis_context *gen = (genesis_context *)system;
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2411 io_mouse_up(&gen->io, mouse_num, button);
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2412 }
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2413
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2414 static void mouse_down_pico(system_header *system, uint8_t mouse_num, uint8_t button)
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2415 {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2416 genesis_context *gen = (genesis_context *)system;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2417 if (button == MOUSE_LEFT) {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2418 gen->pico_button_state &= ~0x80;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2419 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2420 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2421
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2422 static void mouse_up_pico(system_header *system, uint8_t mouse_num, uint8_t button)
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2423 {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2424 genesis_context *gen = (genesis_context *)system;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2425 if (button == MOUSE_LEFT) {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2426 gen->pico_button_state |= 0x80;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2427 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2428 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2429
1583
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2430 static void mouse_motion_absolute(system_header *system, uint8_t mouse_num, uint16_t x, uint16_t y)
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2431 {
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2432 genesis_context *gen = (genesis_context *)system;
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2433 io_mouse_motion_absolute(&gen->io, mouse_num, x, y);
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2434 }
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2435
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2436 static void mouse_motion_relative(system_header *system, uint8_t mouse_num, int32_t x, int32_t y)
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2437 {
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2438 genesis_context *gen = (genesis_context *)system;
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2439 io_mouse_motion_relative(&gen->io, mouse_num, x, y);
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2440 }
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2441
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2442 static void mouse_motion_absolute_pico(system_header *system, uint8_t mouse_num, uint16_t x, uint16_t y)
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2443 {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2444 genesis_context *gen = (genesis_context *)system;
2429
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
2445 //FIXME: coordinate translation feels a little off for storybook area
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2446 //TODO: limit to mouse motion on emulated storyware/drawing area
2429
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
2447 if (y < 24) {
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
2448 y = 24;
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
2449 }
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
2450 gen->pico_pen_x = x * (0x17D - 0x3C) / 640 + 0x3C;
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
2451 if (y < 320) {
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
2452 gen->pico_pen_y = (y-24) * (0x3F4-0x2F8) / (320-24) + 0x2F8;
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
2453 } else {
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
2454 gen->pico_pen_y = (y - 320) * (0x2f8-0x1FC) / 320 + 0x1FC;
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
2455 }
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2456 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2457
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2458 static void mouse_motion_relative_pico(system_header *system, uint8_t mouse_num, int32_t x, int32_t y)
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2459 {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2460 genesis_context *gen = (genesis_context *)system;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2461 //TODO: scale properly
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2462 //TODO: limit to mouse motion on emulated storyware/drawing area
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2463 gen->pico_pen_x += x;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2464 gen->pico_pen_y += y;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2465 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2466
1583
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2467 static void keyboard_down(system_header *system, uint8_t scancode)
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2468 {
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2469 genesis_context *gen = (genesis_context *)system;
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2470 io_keyboard_down(&gen->io, scancode);
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2471 }
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2472
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2473 static void keyboard_up(system_header *system, uint8_t scancode)
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2474 {
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2475 genesis_context *gen = (genesis_context *)system;
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2476 io_keyboard_up(&gen->io, scancode);
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2477 }
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2478
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2479 static void keyboard_down_pico(system_header *system, uint8_t scancode)
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2480 {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2481 genesis_context *gen = (genesis_context *)system;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2482 //TODO: Keyboard Pico emulation
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2483 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2484
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2485 static void keyboard_up_pico(system_header *system, uint8_t scancode)
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2486 {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2487 genesis_context *gen = (genesis_context *)system;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2488 //TODO: Keyboard Pico emulation
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2489 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2490
1798
5278b6e44fc1 Optionally emulate the offset around zero in the imperfect DAC of a discrete YM2612
Michael Pavone <pavone@retrodev.com>
parents: 1796
diff changeset
2491 static void set_audio_config(genesis_context *gen)
1796
51417bb557b6 Configurable gain for overall output and individual components
Michael Pavone <pavone@retrodev.com>
parents: 1766
diff changeset
2492 {
51417bb557b6 Configurable gain for overall output and individual components
Michael Pavone <pavone@retrodev.com>
parents: 1766
diff changeset
2493 char *config_gain;
51417bb557b6 Configurable gain for overall output and individual components
Michael Pavone <pavone@retrodev.com>
parents: 1766
diff changeset
2494 config_gain = tern_find_path(config, "audio\0psg_gain\0", TVAL_PTR).ptrval;
51417bb557b6 Configurable gain for overall output and individual components
Michael Pavone <pavone@retrodev.com>
parents: 1766
diff changeset
2495 render_audio_source_gaindb(gen->psg->audio, config_gain ? atof(config_gain) : 0.0f);
2459
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
2496 if (gen->header.type != SYSTEM_PICO && gen->header.type != SYSTEM_COPERA) {
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2497 config_gain = tern_find_path(config, "audio\0fm_gain\0", TVAL_PTR).ptrval;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2498 render_audio_source_gaindb(gen->ym->audio, config_gain ? atof(config_gain) : 0.0f);
2052
3748a2a8a4b7 Support Sega mapper without 'SEGA SSF' in header or ROM DB entry and implement a subset of the extended Sega mapper implemented in the Mega Everdrive when 'SEGA SSF' is present
Michael Pavone <pavone@retrodev.com>
parents: 2039
diff changeset
2499
2556
6f1eebc0a90b Add auto option for fm_dac config variable that bases zero offset on the select MD model
Michael Pavone <pavone@retrodev.com>
parents: 2548
diff changeset
2500 char *config_dac = tern_find_path_default(config, "audio\0fm_dac\0", (tern_val){.ptrval="auto"}, TVAL_PTR).ptrval;
6f1eebc0a90b Add auto option for fm_dac config variable that bases zero offset on the select MD model
Michael Pavone <pavone@retrodev.com>
parents: 2548
diff changeset
2501 uint8_t zero_offset = 0;
6f1eebc0a90b Add auto option for fm_dac config variable that bases zero offset on the select MD model
Michael Pavone <pavone@retrodev.com>
parents: 2548
diff changeset
2502 if (!strcmp(config_dac, "auto")) {
6f1eebc0a90b Add auto option for fm_dac config variable that bases zero offset on the select MD model
Michael Pavone <pavone@retrodev.com>
parents: 2548
diff changeset
2503 zero_offset = gen->ym->status_address_mask != 0;
6f1eebc0a90b Add auto option for fm_dac config variable that bases zero offset on the select MD model
Michael Pavone <pavone@retrodev.com>
parents: 2548
diff changeset
2504 } else if (!strcmp(config_dac, "zero_offset")) {
6f1eebc0a90b Add auto option for fm_dac config variable that bases zero offset on the select MD model
Michael Pavone <pavone@retrodev.com>
parents: 2548
diff changeset
2505 zero_offset = 1;
6f1eebc0a90b Add auto option for fm_dac config variable that bases zero offset on the select MD model
Michael Pavone <pavone@retrodev.com>
parents: 2548
diff changeset
2506 }
6f1eebc0a90b Add auto option for fm_dac config variable that bases zero offset on the select MD model
Michael Pavone <pavone@retrodev.com>
parents: 2548
diff changeset
2507 ym_enable_zero_offset(gen->ym, zero_offset);
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2508 }
2277
9e578fd493e1 Implement gain control for Ricoh PCM and CDDA with defaults based on Model 2 Sega CD
Michael Pavone <pavone@retrodev.com>
parents: 2272
diff changeset
2509
9e578fd493e1 Implement gain control for Ricoh PCM and CDDA with defaults based on Model 2 Sega CD
Michael Pavone <pavone@retrodev.com>
parents: 2272
diff changeset
2510 if (gen->expansion) {
9e578fd493e1 Implement gain control for Ricoh PCM and CDDA with defaults based on Model 2 Sega CD
Michael Pavone <pavone@retrodev.com>
parents: 2272
diff changeset
2511 segacd_context *cd = gen->expansion;
9e578fd493e1 Implement gain control for Ricoh PCM and CDDA with defaults based on Model 2 Sega CD
Michael Pavone <pavone@retrodev.com>
parents: 2272
diff changeset
2512 config_gain = tern_find_path(config, "audio\0rf5c164_gain\0", TVAL_PTR).ptrval;
9e578fd493e1 Implement gain control for Ricoh PCM and CDDA with defaults based on Model 2 Sega CD
Michael Pavone <pavone@retrodev.com>
parents: 2272
diff changeset
2513 render_audio_source_gaindb(cd->pcm.audio, config_gain ? atof(config_gain) : -6.0f);
9e578fd493e1 Implement gain control for Ricoh PCM and CDDA with defaults based on Model 2 Sega CD
Michael Pavone <pavone@retrodev.com>
parents: 2272
diff changeset
2514 config_gain = tern_find_path(config, "audio\0cdda_gain\0", TVAL_PTR).ptrval;
9e578fd493e1 Implement gain control for Ricoh PCM and CDDA with defaults based on Model 2 Sega CD
Michael Pavone <pavone@retrodev.com>
parents: 2272
diff changeset
2515 render_audio_source_gaindb(cd->fader.audio, config_gain ? atof(config_gain) : -9.5f);
9e578fd493e1 Implement gain control for Ricoh PCM and CDDA with defaults based on Model 2 Sega CD
Michael Pavone <pavone@retrodev.com>
parents: 2272
diff changeset
2516 }
1796
51417bb557b6 Configurable gain for overall output and individual components
Michael Pavone <pavone@retrodev.com>
parents: 1766
diff changeset
2517 }
51417bb557b6 Configurable gain for overall output and individual components
Michael Pavone <pavone@retrodev.com>
parents: 1766
diff changeset
2518
1595
360d5bab199f Update controller config when changed in UI without restart
Michael Pavone <pavone@retrodev.com>
parents: 1593
diff changeset
2519 static void config_updated(system_header *system)
360d5bab199f Update controller config when changed in UI without restart
Michael Pavone <pavone@retrodev.com>
parents: 1593
diff changeset
2520 {
360d5bab199f Update controller config when changed in UI without restart
Michael Pavone <pavone@retrodev.com>
parents: 1593
diff changeset
2521 genesis_context *gen = (genesis_context *)system;
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2522 if (gen->header.type == SYSTEM_GENESIS) {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2523 setup_io_devices(config, &system->info, &gen->io);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2524 }
1798
5278b6e44fc1 Optionally emulate the offset around zero in the imperfect DAC of a discrete YM2612
Michael Pavone <pavone@retrodev.com>
parents: 1796
diff changeset
2525 set_audio_config(gen);
2384
03e6ac327ba0 Handle changes to sample rate while content is running
Michael Pavone <pavone@retrodev.com>
parents: 2354
diff changeset
2526 //sample rate may have changed
2459
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
2527 if (gen->header.type != SYSTEM_PICO && gen->header.type != SYSTEM_COPERA) {
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2528 ym_adjust_master_clock(gen->ym, gen->master_clock);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2529 }
2384
03e6ac327ba0 Handle changes to sample rate while content is running
Michael Pavone <pavone@retrodev.com>
parents: 2354
diff changeset
2530 psg_adjust_master_clock(gen->psg, gen->master_clock);
03e6ac327ba0 Handle changes to sample rate while content is running
Michael Pavone <pavone@retrodev.com>
parents: 2354
diff changeset
2531 if (gen->expansion) {
03e6ac327ba0 Handle changes to sample rate while content is running
Michael Pavone <pavone@retrodev.com>
parents: 2354
diff changeset
2532 segacd_config_updated(gen->expansion);
03e6ac327ba0 Handle changes to sample rate while content is running
Michael Pavone <pavone@retrodev.com>
parents: 2354
diff changeset
2533 }
1595
360d5bab199f Update controller config when changed in UI without restart
Michael Pavone <pavone@retrodev.com>
parents: 1593
diff changeset
2534 }
360d5bab199f Update controller config when changed in UI without restart
Michael Pavone <pavone@retrodev.com>
parents: 1593
diff changeset
2535
1909
508522f08e4d Initial stab at VGM logging support
Michael Pavone <pavone@retrodev.com>
parents: 1907
diff changeset
2536 static void start_vgm_log(system_header *system, char *filename)
508522f08e4d Initial stab at VGM logging support
Michael Pavone <pavone@retrodev.com>
parents: 1907
diff changeset
2537 {
508522f08e4d Initial stab at VGM logging support
Michael Pavone <pavone@retrodev.com>
parents: 1907
diff changeset
2538 genesis_context *gen = (genesis_context *)system;
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
2539 vgm_writer *vgm = vgm_write_open(filename, gen->version_reg & HZ50 ? 50 : 60, gen->normal_clock, gen->m68k->cycles);
1909
508522f08e4d Initial stab at VGM logging support
Michael Pavone <pavone@retrodev.com>
parents: 1907
diff changeset
2540 if (vgm) {
508522f08e4d Initial stab at VGM logging support
Michael Pavone <pavone@retrodev.com>
parents: 1907
diff changeset
2541 printf("Started logging VGM to %s\n", filename);
2459
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
2542 if (gen->header.type != SYSTEM_PICO && gen->header.type != SYSTEM_COPERA) {
2488
bfd09d3367ba Fix crash when enabling VGM recording while running Pico or Copera software
Michael Pavone <pavone@retrodev.com>
parents: 2486
diff changeset
2543 sync_sound(gen, vgm->last_cycle);
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2544 ym_vgm_log(gen->ym, gen->normal_clock, vgm);
2488
bfd09d3367ba Fix crash when enabling VGM recording while running Pico or Copera software
Michael Pavone <pavone@retrodev.com>
parents: 2486
diff changeset
2545 } else {
bfd09d3367ba Fix crash when enabling VGM recording while running Pico or Copera software
Michael Pavone <pavone@retrodev.com>
parents: 2486
diff changeset
2546 sync_sound_pico(gen, vgm->last_cycle);
2558
3f58fec775df Initial work on YMF262 (aka OPL3) emulation
Michael Pavone <pavone@retrodev.com>
parents: 2556
diff changeset
2547 if (gen->opl) {
3f58fec775df Initial work on YMF262 (aka OPL3) emulation
Michael Pavone <pavone@retrodev.com>
parents: 2556
diff changeset
2548 ymf262_vgm_log(gen->opl, gen->normal_clock, vgm);
3f58fec775df Initial work on YMF262 (aka OPL3) emulation
Michael Pavone <pavone@retrodev.com>
parents: 2556
diff changeset
2549 }
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2550 }
2254
8b88d57d1218 Prevent VGM logging from getting messed up if slow/turbo is active at log start time
Michael Pavone <pavone@retrodev.com>
parents: 2248
diff changeset
2551 psg_vgm_log(gen->psg, gen->normal_clock, vgm);
1909
508522f08e4d Initial stab at VGM logging support
Michael Pavone <pavone@retrodev.com>
parents: 1907
diff changeset
2552 gen->header.vgm_logging = 1;
508522f08e4d Initial stab at VGM logging support
Michael Pavone <pavone@retrodev.com>
parents: 1907
diff changeset
2553 } else {
508522f08e4d Initial stab at VGM logging support
Michael Pavone <pavone@retrodev.com>
parents: 1907
diff changeset
2554 printf("Failed to start logging to %s\n", filename);
508522f08e4d Initial stab at VGM logging support
Michael Pavone <pavone@retrodev.com>
parents: 1907
diff changeset
2555 }
508522f08e4d Initial stab at VGM logging support
Michael Pavone <pavone@retrodev.com>
parents: 1907
diff changeset
2556 }
508522f08e4d Initial stab at VGM logging support
Michael Pavone <pavone@retrodev.com>
parents: 1907
diff changeset
2557
508522f08e4d Initial stab at VGM logging support
Michael Pavone <pavone@retrodev.com>
parents: 1907
diff changeset
2558 static void stop_vgm_log(system_header *system)
508522f08e4d Initial stab at VGM logging support
Michael Pavone <pavone@retrodev.com>
parents: 1907
diff changeset
2559 {
508522f08e4d Initial stab at VGM logging support
Michael Pavone <pavone@retrodev.com>
parents: 1907
diff changeset
2560 puts("Stopped VGM log");
508522f08e4d Initial stab at VGM logging support
Michael Pavone <pavone@retrodev.com>
parents: 1907
diff changeset
2561 genesis_context *gen = (genesis_context *)system;
2488
bfd09d3367ba Fix crash when enabling VGM recording while running Pico or Copera software
Michael Pavone <pavone@retrodev.com>
parents: 2486
diff changeset
2562 vgm_close(gen->psg->vgm);
2459
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
2563 if (gen->header.type != SYSTEM_PICO && gen->header.type != SYSTEM_COPERA) {
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2564 gen->ym->vgm = NULL;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2565 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2566 gen->psg->vgm = NULL;
1909
508522f08e4d Initial stab at VGM logging support
Michael Pavone <pavone@retrodev.com>
parents: 1907
diff changeset
2567 gen->header.vgm_logging = 0;
508522f08e4d Initial stab at VGM logging support
Michael Pavone <pavone@retrodev.com>
parents: 1907
diff changeset
2568 }
508522f08e4d Initial stab at VGM logging support
Michael Pavone <pavone@retrodev.com>
parents: 1907
diff changeset
2569
2243
0d1d5dccdd28 Initial implementation of oscilloscope debug view
Michael Pavone <pavone@retrodev.com>
parents: 2228
diff changeset
2570 static void toggle_debug_view(system_header *system, uint8_t debug_view)
0d1d5dccdd28 Initial implementation of oscilloscope debug view
Michael Pavone <pavone@retrodev.com>
parents: 2228
diff changeset
2571 {
2302
0343f0d5add0 Fix libretro build for real
Michael Pavone <pavone@retrodev.com>
parents: 2286
diff changeset
2572 #ifndef IS_LIB
2243
0d1d5dccdd28 Initial implementation of oscilloscope debug view
Michael Pavone <pavone@retrodev.com>
parents: 2228
diff changeset
2573 genesis_context *gen = (genesis_context *)system;
0d1d5dccdd28 Initial implementation of oscilloscope debug view
Michael Pavone <pavone@retrodev.com>
parents: 2228
diff changeset
2574 if (debug_view < DEBUG_OSCILLOSCOPE) {
0d1d5dccdd28 Initial implementation of oscilloscope debug view
Michael Pavone <pavone@retrodev.com>
parents: 2228
diff changeset
2575 vdp_toggle_debug_view(gen->vdp, debug_view);
0d1d5dccdd28 Initial implementation of oscilloscope debug view
Michael Pavone <pavone@retrodev.com>
parents: 2228
diff changeset
2576 } else if (debug_view == DEBUG_OSCILLOSCOPE) {
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2577 if (gen->psg->scope) {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2578 oscilloscope *scope = gen->psg->scope;
2459
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
2579 if (gen->header.type == SYSTEM_PICO || gen->header.type == SYSTEM_COPERA) {
2431
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
2580 gen->adpcm->scope = NULL;
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
2581 } else {
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2582 gen->ym->scope = NULL;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2583 }
2243
0d1d5dccdd28 Initial implementation of oscilloscope debug view
Michael Pavone <pavone@retrodev.com>
parents: 2228
diff changeset
2584 gen->psg->scope = NULL;
0d1d5dccdd28 Initial implementation of oscilloscope debug view
Michael Pavone <pavone@retrodev.com>
parents: 2228
diff changeset
2585 if (gen->expansion) {
0d1d5dccdd28 Initial implementation of oscilloscope debug view
Michael Pavone <pavone@retrodev.com>
parents: 2228
diff changeset
2586 segacd_context *cd = gen->expansion;
0d1d5dccdd28 Initial implementation of oscilloscope debug view
Michael Pavone <pavone@retrodev.com>
parents: 2228
diff changeset
2587 cd->pcm.scope = NULL;
0d1d5dccdd28 Initial implementation of oscilloscope debug view
Michael Pavone <pavone@retrodev.com>
parents: 2228
diff changeset
2588 }
0d1d5dccdd28 Initial implementation of oscilloscope debug view
Michael Pavone <pavone@retrodev.com>
parents: 2228
diff changeset
2589 scope_close(scope);
0d1d5dccdd28 Initial implementation of oscilloscope debug view
Michael Pavone <pavone@retrodev.com>
parents: 2228
diff changeset
2590 } else {
0d1d5dccdd28 Initial implementation of oscilloscope debug view
Michael Pavone <pavone@retrodev.com>
parents: 2228
diff changeset
2591 oscilloscope *scope = create_oscilloscope();
2459
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
2592 if (gen->header.type == SYSTEM_PICO || gen->header.type == SYSTEM_COPERA) {
2431
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
2593 pico_pcm_enable_scope(gen->adpcm, scope, gen->normal_clock);
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
2594 } else {
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2595 ym_enable_scope(gen->ym, scope, gen->normal_clock);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2596 }
2255
74112041b2c7 Proper calculation of sample rate for YM2612/PSG oscilloscope view
Michael Pavone <pavone@retrodev.com>
parents: 2254
diff changeset
2597 psg_enable_scope(gen->psg, scope, gen->normal_clock);
2243
0d1d5dccdd28 Initial implementation of oscilloscope debug view
Michael Pavone <pavone@retrodev.com>
parents: 2228
diff changeset
2598 if (gen->expansion) {
0d1d5dccdd28 Initial implementation of oscilloscope debug view
Michael Pavone <pavone@retrodev.com>
parents: 2228
diff changeset
2599 segacd_context *cd = gen->expansion;
0d1d5dccdd28 Initial implementation of oscilloscope debug view
Michael Pavone <pavone@retrodev.com>
parents: 2228
diff changeset
2600 rf5c164_enable_scope(&cd->pcm, scope);
0d1d5dccdd28 Initial implementation of oscilloscope debug view
Michael Pavone <pavone@retrodev.com>
parents: 2228
diff changeset
2601 }
0d1d5dccdd28 Initial implementation of oscilloscope debug view
Michael Pavone <pavone@retrodev.com>
parents: 2228
diff changeset
2602 }
2271
3ef80963c2a7 Fix stamp address mask and add WIP CD graphics debug view
Michael Pavone <pavone@retrodev.com>
parents: 2267
diff changeset
2603 } else if (debug_view == DEBUG_CD_GRAPHICS && gen->expansion) {
3ef80963c2a7 Fix stamp address mask and add WIP CD graphics debug view
Michael Pavone <pavone@retrodev.com>
parents: 2267
diff changeset
2604 scd_toggle_graphics_debug(gen->expansion);
2243
0d1d5dccdd28 Initial implementation of oscilloscope debug view
Michael Pavone <pavone@retrodev.com>
parents: 2228
diff changeset
2605 }
2302
0343f0d5add0 Fix libretro build for real
Michael Pavone <pavone@retrodev.com>
parents: 2286
diff changeset
2606 #endif
2243
0d1d5dccdd28 Initial implementation of oscilloscope debug view
Michael Pavone <pavone@retrodev.com>
parents: 2228
diff changeset
2607 }
0d1d5dccdd28 Initial implementation of oscilloscope debug view
Michael Pavone <pavone@retrodev.com>
parents: 2228
diff changeset
2608
2034
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2609 static void *tmss_rom_write_16(uint32_t address, void *context, uint16_t value)
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2610 {
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2611 m68k_context *m68k = context;
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2612 genesis_context *gen = m68k->system;
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2613 if (gen->tmss) {
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2614 return gen->tmss_write_16(address, context, value);
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2615 }
2052
3748a2a8a4b7 Support Sega mapper without 'SEGA SSF' in header or ROM DB entry and implement a subset of the extended Sega mapper implemented in the Mega Everdrive when 'SEGA SSF' is present
Michael Pavone <pavone@retrodev.com>
parents: 2039
diff changeset
2616
2034
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2617 return context;
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2618 }
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2619
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2620 static void *tmss_rom_write_8(uint32_t address, void *context, uint8_t value)
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2621 {
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2622 m68k_context *m68k = context;
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2623 genesis_context *gen = m68k->system;
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2624 if (gen->tmss) {
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2625 return gen->tmss_write_8(address, context, value);
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2626 }
2052
3748a2a8a4b7 Support Sega mapper without 'SEGA SSF' in header or ROM DB entry and implement a subset of the extended Sega mapper implemented in the Mega Everdrive when 'SEGA SSF' is present
Michael Pavone <pavone@retrodev.com>
parents: 2039
diff changeset
2627
2034
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2628 return context;
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2629 }
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2630
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2631 static uint16_t tmss_rom_read_16(uint32_t address, void *context)
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2632 {
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2633 m68k_context *m68k = context;
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2634 genesis_context *gen = m68k->system;
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2635 if (gen->tmss) {
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2636 return gen->tmss_read_16(address, context);
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2637 }
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2638 return ((uint16_t *)gen->tmss_buffer)[address >> 1];
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2639 }
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2640
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2641 static uint8_t tmss_rom_read_8(uint32_t address, void *context)
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2642 {
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2643 m68k_context *m68k = context;
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2644 genesis_context *gen = m68k->system;
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2645 if (gen->tmss) {
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2646 return gen->tmss_read_8(address, context);
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2647 }
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2648 #ifdef BLASTEM_BIG_ENDIAN
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2649 return gen->tmss_buffer[address];
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2650 #else
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2651 return gen->tmss_buffer[address ^ 1];
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2652 #endif
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2653 }
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2654
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2655 static void *tmss_word_write_16(uint32_t address, void *context, uint16_t value)
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2656 {
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2657 m68k_context *m68k = context;
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2658 genesis_context *gen = m68k->system;
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2659 if (gen->tmss) {
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2660 address += gen->tmss_write_offset;
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
2661 uint16_t *dest = get_native_pointer(address, (void **)m68k->mem_pointers, &m68k->opts->gen);
2034
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2662 *dest = value;
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2663 m68k_handle_code_write(address, m68k);
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2664 }
2052
3748a2a8a4b7 Support Sega mapper without 'SEGA SSF' in header or ROM DB entry and implement a subset of the extended Sega mapper implemented in the Mega Everdrive when 'SEGA SSF' is present
Michael Pavone <pavone@retrodev.com>
parents: 2039
diff changeset
2665
2034
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2666 return context;
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2667 }
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2668
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2669 static void *tmss_word_write_8(uint32_t address, void *context, uint8_t value)
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2670 {
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2671 m68k_context *m68k = context;
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2672 genesis_context *gen = m68k->system;
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2673 if (gen->tmss) {
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2674 address += gen->tmss_write_offset;
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
2675 uint8_t *dest = get_native_pointer(address & ~1, (void **)m68k->mem_pointers, &m68k->opts->gen);
2034
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2676 #ifdef BLASTEM_BIG_ENDIAN
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2677 dest[address & 1] = value;
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2678 #else
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2679 dest[address & 1 ^ 1] = value;
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2680 #endif
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2681 m68k_handle_code_write(address & ~1, m68k);
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2682 }
2052
3748a2a8a4b7 Support Sega mapper without 'SEGA SSF' in header or ROM DB entry and implement a subset of the extended Sega mapper implemented in the Mega Everdrive when 'SEGA SSF' is present
Michael Pavone <pavone@retrodev.com>
parents: 2039
diff changeset
2683
2034
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2684 return context;
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2685 }
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2686
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2687 static void *tmss_odd_write_16(uint32_t address, void *context, uint16_t value)
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2688 {
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2689 m68k_context *m68k = context;
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2690 genesis_context *gen = m68k->system;
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2691 if (gen->tmss) {
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
2692 memmap_chunk const *chunk = find_map_chunk(address + gen->tmss_write_offset, &m68k->opts->gen, 0, NULL);
2034
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2693 address >>= 1;
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2694 uint8_t *base = (uint8_t *)m68k->mem_pointers[chunk->ptr_index];
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2695 base[address] = value;
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2696 }
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2697 return context;
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2698 }
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2699
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2700 static void *tmss_odd_write_8(uint32_t address, void *context, uint8_t value)
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2701 {
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2702 m68k_context *m68k = context;
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2703 genesis_context *gen = m68k->system;
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2704 if (gen->tmss && (address & 1)) {
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
2705 memmap_chunk const *chunk = find_map_chunk(address + gen->tmss_write_offset, &m68k->opts->gen, 0, NULL);
2034
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2706 address >>= 1;
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2707 uint8_t *base = (uint8_t *)m68k->mem_pointers[chunk->ptr_index];
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2708 base[address] = value;
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2709 }
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2710 return context;
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2711 }
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2712
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2713 static void *tmss_even_write_16(uint32_t address, void *context, uint16_t value)
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2714 {
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2715 m68k_context *m68k = context;
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2716 genesis_context *gen = m68k->system;
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2717 if (gen->tmss) {
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
2718 memmap_chunk const *chunk = find_map_chunk(address + gen->tmss_write_offset, &m68k->opts->gen, 0, NULL);
2034
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2719 address >>= 1;
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2720 uint8_t *base = (uint8_t *)m68k->mem_pointers[chunk->ptr_index];
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2721 base[address] = value >> 8;
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2722 }
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2723 return context;
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2724 }
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2725
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2726 static void *tmss_even_write_8(uint32_t address, void *context, uint8_t value)
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2727 {
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2728 m68k_context *m68k = context;
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2729 genesis_context *gen = m68k->system;
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2730 if (gen->tmss && !(address & 1)) {
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
2731 memmap_chunk const *chunk = find_map_chunk(address + gen->tmss_write_offset, &m68k->opts->gen, 0, NULL);
2034
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2732 address >>= 1;
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2733 uint8_t *base = (uint8_t *)m68k->mem_pointers[chunk->ptr_index];
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2734 base[address] = value;
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2735 }
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2736 return context;
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2737 }
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2738
1503
a763523dadf4 Added code for initializing a combined Genesis + Sega CD system when a Sega CD ISO is loaded
Michael Pavone <pavone@retrodev.com>
parents: 1452
diff changeset
2739 static genesis_context *shared_init(uint32_t system_opts, rom_info *rom, uint8_t force_region)
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
2740 {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
2741 static memmap_chunk z80_map[] = {
2134
9caebcfeac72 Implement word RAM interleaving in 1M mode, now passes mcd-verificator word RAM tests
Michael Pavone <pavone@retrodev.com>
parents: 2090
diff changeset
2742 { 0x0000, 0x4000, 0x1FFF, .flags = MMAP_READ | MMAP_WRITE | MMAP_CODE},
9caebcfeac72 Implement word RAM interleaving in 1M mode, now passes mcd-verificator word RAM tests
Michael Pavone <pavone@retrodev.com>
parents: 2090
diff changeset
2743 { 0x8000, 0x10000, 0x7FFF, .read_8 = z80_read_bank, .write_8 = z80_write_bank},
9caebcfeac72 Implement word RAM interleaving in 1M mode, now passes mcd-verificator word RAM tests
Michael Pavone <pavone@retrodev.com>
parents: 2090
diff changeset
2744 { 0x4000, 0x6000, 0x0003, .read_8 = z80_read_ym, .write_8 = z80_write_ym},
9caebcfeac72 Implement word RAM interleaving in 1M mode, now passes mcd-verificator word RAM tests
Michael Pavone <pavone@retrodev.com>
parents: 2090
diff changeset
2745 { 0x6000, 0x6100, 0xFFFF, .write_8 = z80_write_bank_reg},
9caebcfeac72 Implement word RAM interleaving in 1M mode, now passes mcd-verificator word RAM tests
Michael Pavone <pavone@retrodev.com>
parents: 2090
diff changeset
2746 { 0x7F00, 0x8000, 0x00FF, .read_8 = z80_vdp_port_read, .write_8 = z80_vdp_port_write}
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
2747 };
2053
3414a4423de1 Merge from default
Michael Pavone <pavone@retrodev.com>
parents: 1692 2052
diff changeset
2748
1503
a763523dadf4 Added code for initializing a combined Genesis + Sega CD system when a Sega CD ISO is loaded
Michael Pavone <pavone@retrodev.com>
parents: 1452
diff changeset
2749 char *m68k_divider = tern_find_path(config, "clocks\0m68k_divider\0", TVAL_PTR).ptrval;
a763523dadf4 Added code for initializing a combined Genesis + Sega CD system when a Sega CD ISO is loaded
Michael Pavone <pavone@retrodev.com>
parents: 1452
diff changeset
2750 if (!m68k_divider) {
a763523dadf4 Added code for initializing a combined Genesis + Sega CD system when a Sega CD ISO is loaded
Michael Pavone <pavone@retrodev.com>
parents: 1452
diff changeset
2751 m68k_divider = "7";
a763523dadf4 Added code for initializing a combined Genesis + Sega CD system when a Sega CD ISO is loaded
Michael Pavone <pavone@retrodev.com>
parents: 1452
diff changeset
2752 }
a763523dadf4 Added code for initializing a combined Genesis + Sega CD system when a Sega CD ISO is loaded
Michael Pavone <pavone@retrodev.com>
parents: 1452
diff changeset
2753 MCLKS_PER_68K = atoi(m68k_divider);
a763523dadf4 Added code for initializing a combined Genesis + Sega CD system when a Sega CD ISO is loaded
Michael Pavone <pavone@retrodev.com>
parents: 1452
diff changeset
2754 if (!MCLKS_PER_68K) {
a763523dadf4 Added code for initializing a combined Genesis + Sega CD system when a Sega CD ISO is loaded
Michael Pavone <pavone@retrodev.com>
parents: 1452
diff changeset
2755 MCLKS_PER_68K = 7;
a763523dadf4 Added code for initializing a combined Genesis + Sega CD system when a Sega CD ISO is loaded
Michael Pavone <pavone@retrodev.com>
parents: 1452
diff changeset
2756 }
2053
3414a4423de1 Merge from default
Michael Pavone <pavone@retrodev.com>
parents: 1692 2052
diff changeset
2757
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
2758 genesis_context *gen = calloc(1, sizeof(genesis_context));
1111
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2759 gen->header.set_speed_percent = set_speed_percent;
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2760 gen->header.start_context = start_genesis;
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2761 gen->header.resume_context = resume_genesis;
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2762 gen->header.load_save = load_save;
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2763 gen->header.persist_save = persist_save;
1433
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1428
diff changeset
2764 gen->header.load_state = load_state;
1208
95f5253e75c7 Implement soft reset in Genesis mode
Michael Pavone <pavone@retrodev.com>
parents: 1204
diff changeset
2765 gen->header.soft_reset = soft_reset;
1111
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2766 gen->header.free_context = free_genesis;
1117
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents: 1116
diff changeset
2767 gen->header.get_open_bus_value = get_open_bus_value;
1111
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2768 gen->header.request_exit = request_exit;
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2769 gen->header.inc_debug_mode = inc_debug_mode;
1583
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2770 gen->header.gamepad_down = gamepad_down;
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2771 gen->header.gamepad_up = gamepad_up;
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2772 gen->header.mouse_down = mouse_down;
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2773 gen->header.mouse_up = mouse_up;
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2774 gen->header.mouse_motion_absolute = mouse_motion_absolute;
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2775 gen->header.mouse_motion_relative = mouse_motion_relative;
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2776 gen->header.keyboard_down = keyboard_down;
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2777 gen->header.keyboard_up = keyboard_up;
1595
360d5bab199f Update controller config when changed in UI without restart
Michael Pavone <pavone@retrodev.com>
parents: 1593
diff changeset
2778 gen->header.config_updated = config_updated;
1690
319d90025d50 Implement serialization/deserialization in libretro build
Mike Pavone <pavone@retrodev.com>
parents: 1688
diff changeset
2779 gen->header.serialize = serialize;
319d90025d50 Implement serialization/deserialization in libretro build
Mike Pavone <pavone@retrodev.com>
parents: 1688
diff changeset
2780 gen->header.deserialize = deserialize;
1909
508522f08e4d Initial stab at VGM logging support
Michael Pavone <pavone@retrodev.com>
parents: 1907
diff changeset
2781 gen->header.start_vgm_log = start_vgm_log;
508522f08e4d Initial stab at VGM logging support
Michael Pavone <pavone@retrodev.com>
parents: 1907
diff changeset
2782 gen->header.stop_vgm_log = stop_vgm_log;
2243
0d1d5dccdd28 Initial implementation of oscilloscope debug view
Michael Pavone <pavone@retrodev.com>
parents: 2228
diff changeset
2783 gen->header.toggle_debug_view = toggle_debug_view;
1377
e587f16e7d3d Implemented SMS pause button
Michael Pavone <pavone@retrodev.com>
parents: 1374
diff changeset
2784 gen->header.type = SYSTEM_GENESIS;
1595
360d5bab199f Update controller config when changed in UI without restart
Michael Pavone <pavone@retrodev.com>
parents: 1593
diff changeset
2785 gen->header.info = *rom;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
2786 set_region(gen, rom, force_region);
1901
5433252329fb Set version reg and TAS behavior based on model config
Michael Pavone <pavone@retrodev.com>
parents: 1889
diff changeset
2787 tern_node *model = get_model(config, SYSTEM_GENESIS);
5433252329fb Set version reg and TAS behavior based on model config
Michael Pavone <pavone@retrodev.com>
parents: 1889
diff changeset
2788 uint8_t tmss = !strcmp(tern_find_ptr_default(model, "tmss", "off"), "on");
5433252329fb Set version reg and TAS behavior based on model config
Michael Pavone <pavone@retrodev.com>
parents: 1889
diff changeset
2789 if (tmss) {
5433252329fb Set version reg and TAS behavior based on model config
Michael Pavone <pavone@retrodev.com>
parents: 1889
diff changeset
2790 gen->version_reg |= 1;
2037
b0b0c31338c3 Implement TMSS VDP lock
Michael Pavone <pavone@retrodev.com>
parents: 2034
diff changeset
2791 } else {
b0b0c31338c3 Implement TMSS VDP lock
Michael Pavone <pavone@retrodev.com>
parents: 2034
diff changeset
2792 gen->vdp_unlocked = 1;
1901
5433252329fb Set version reg and TAS behavior based on model config
Michael Pavone <pavone@retrodev.com>
parents: 1889
diff changeset
2793 }
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
2794
1906
2d462aa78349 Make VDP VSRAM capacity respect model selection
Michael Pavone <pavone@retrodev.com>
parents: 1904
diff changeset
2795 uint8_t max_vsram = !strcmp(tern_find_ptr_default(model, "vsram", "40"), "64");
2194
01ff005b08f6 Very rudimentary support for Game Gear VDP emulation
Michael Pavone <pavone@retrodev.com>
parents: 2184
diff changeset
2796 gen->vdp = init_vdp_context(gen->version_reg & 0x40, max_vsram, VDP_GENESIS);
1117
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents: 1116
diff changeset
2797 gen->vdp->system = &gen->header;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
2798 gen->frame_end = vdp_cycles_to_frame_end(gen->vdp);
1326
071e761bcdcf Fix a deficiency in the way types were handled in my ternary tree. Fixes in which some paths that were constructed from a template with variables would sometimes get an extra garbage character thrown in
Michael Pavone <pavone@retrodev.com>
parents: 1318
diff changeset
2799 char * config_cycles = tern_find_path(config, "clocks\0max_cycles\0", TVAL_PTR).ptrval;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
2800 gen->max_cycles = config_cycles ? atoi(config_cycles) : DEFAULT_SYNC_INTERVAL;
1364
30123ca5856c Added some code to try and prevent Z80 accesses and refresh cycles from screwing up interrupt latency more than on hardware
Michael Pavone <pavone@retrodev.com>
parents: 1348
diff changeset
2801 gen->int_latency_prev1 = MCLKS_PER_68K * 32;
30123ca5856c Added some code to try and prevent Z80 accesses and refresh cycles from screwing up interrupt latency more than on hardware
Michael Pavone <pavone@retrodev.com>
parents: 1348
diff changeset
2802 gen->int_latency_prev2 = MCLKS_PER_68K * 16;
2052
3748a2a8a4b7 Support Sega mapper without 'SEGA SSF' in header or ROM DB entry and implement a subset of the extended Sega mapper implemented in the Mega Everdrive when 'SEGA SSF' is present
Michael Pavone <pavone@retrodev.com>
parents: 2039
diff changeset
2803
1565
61fafcbc2c38 Audio DRC now sounds good in both NTSC and PAL, just need to adjust constants to minimize latency without leading to dropouts
Michael Pavone <pavone@retrodev.com>
parents: 1557
diff changeset
2804 render_set_video_standard((gen->version_reg & HZ50) ? VID_PAL : VID_NTSC);
1946
c3c62dbf1ceb WIP netplay support
Michael Pavone <pavone@retrodev.com>
parents: 1932
diff changeset
2805 event_system_start(SYSTEM_GENESIS, (gen->version_reg & HZ50) ? VID_PAL : VID_NTSC, rom->name);
2052
3748a2a8a4b7 Support Sega mapper without 'SEGA SSF' in header or ROM DB entry and implement a subset of the extended Sega mapper implemented in the Mega Everdrive when 'SEGA SSF' is present
Michael Pavone <pavone@retrodev.com>
parents: 2039
diff changeset
2806
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
2807 gen->ym = malloc(sizeof(ym2612_context));
1904
8312e574100a Implement selectable YM2612/YM3834 invalid status port behavior
Michael Pavone <pavone@retrodev.com>
parents: 1902
diff changeset
2808 char *fm = tern_find_ptr_default(model, "fm", "discrete 2612");
8312e574100a Implement selectable YM2612/YM3834 invalid status port behavior
Michael Pavone <pavone@retrodev.com>
parents: 1902
diff changeset
2809 if (!strcmp(fm + strlen(fm) -4, "3834")) {
8312e574100a Implement selectable YM2612/YM3834 invalid status port behavior
Michael Pavone <pavone@retrodev.com>
parents: 1902
diff changeset
2810 system_opts |= YM_OPT_3834;
8312e574100a Implement selectable YM2612/YM3834 invalid status port behavior
Michael Pavone <pavone@retrodev.com>
parents: 1902
diff changeset
2811 }
1555
6ce36c3f250b More audio refactoring in preparation for allowing proper sync to video with dynamic audio rate control
Michael Pavone <pavone@retrodev.com>
parents: 1551
diff changeset
2812 ym_init(gen->ym, gen->master_clock, MCLKS_PER_YM, system_opts);
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
2813
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
2814 gen->psg = malloc(sizeof(psg_context));
1555
6ce36c3f250b More audio refactoring in preparation for allowing proper sync to video with dynamic audio rate control
Michael Pavone <pavone@retrodev.com>
parents: 1551
diff changeset
2815 psg_init(gen->psg, gen->master_clock, MCLKS_PER_PSG);
2052
3748a2a8a4b7 Support Sega mapper without 'SEGA SSF' in header or ROM DB entry and implement a subset of the extended Sega mapper implemented in the Mega Everdrive when 'SEGA SSF' is present
Michael Pavone <pavone@retrodev.com>
parents: 2039
diff changeset
2816
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
2817 z80_map[0].buffer = gen->zram = calloc(1, Z80_RAM_BYTES);
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
2818 #ifndef NO_Z80
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
2819 z80_options *z_opts = malloc(sizeof(z80_options));
1116
fe8c79f82c22 More cleanup in preparation for SMS/Mark III support
Michael Pavone <pavone@retrodev.com>
parents: 1113
diff changeset
2820 init_z80_opts(z_opts, z80_map, 5, NULL, 0, MCLKS_PER_Z80, 0xFFFF);
1130
8f14767661fa Remove memory map assumptions from Z80 core and move a little bit of logic to the generic backend.c so it can be shared between CPU cores
Michael Pavone <pavone@retrodev.com>
parents: 1117
diff changeset
2821 gen->z80 = init_z80_context(z_opts);
1752
d6d4c006a7b3 Initial attempt at interrupts in new Z80 core and integrating it into main executable
Michael Pavone <pavone@retrodev.com>
parents: 1690
diff changeset
2822 #ifndef NEW_CORE
1117
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents: 1116
diff changeset
2823 gen->z80->next_int_pulse = z80_next_int_pulse;
1752
d6d4c006a7b3 Initial attempt at interrupts in new Z80 core and integrating it into main executable
Michael Pavone <pavone@retrodev.com>
parents: 1690
diff changeset
2824 #endif
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
2825 z80_assert_reset(gen->z80, 0);
1130
8f14767661fa Remove memory map assumptions from Z80 core and move a little bit of logic to the generic backend.c so it can be shared between CPU cores
Michael Pavone <pavone@retrodev.com>
parents: 1117
diff changeset
2826 #else
8f14767661fa Remove memory map assumptions from Z80 core and move a little bit of logic to the generic backend.c so it can be shared between CPU cores
Michael Pavone <pavone@retrodev.com>
parents: 1117
diff changeset
2827 gen->z80 = calloc(1, sizeof(z80_context));
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
2828 #endif
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
2829
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
2830 gen->z80->system = gen;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
2831 gen->z80->mem_pointers[0] = gen->zram;
1503
a763523dadf4 Added code for initializing a combined Genesis + Sega CD system when a Sega CD ISO is loaded
Michael Pavone <pavone@retrodev.com>
parents: 1452
diff changeset
2832 gen->z80->mem_pointers[1] = gen->z80->mem_pointers[2] = NULL;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
2833
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
2834 gen->work_ram = calloc(2, RAM_WORDS);
1326
071e761bcdcf Fix a deficiency in the way types were handled in my ternary tree. Fixes in which some paths that were constructed from a template with variables would sometimes get an extra garbage character thrown in
Michael Pavone <pavone@retrodev.com>
parents: 1318
diff changeset
2835 if (!strcmp("random", tern_find_path_default(config, "system\0ram_init\0", (tern_val){.ptrval = "zero"}, TVAL_PTR).ptrval))
1204
d7be5b6e0a8d Added config file option to specify that RAM should be randomly initialized. Moved default_region inside a new "system" parent node in config
Michael Pavone <pavone@retrodev.com>
parents: 1188
diff changeset
2836 {
d7be5b6e0a8d Added config file option to specify that RAM should be randomly initialized. Moved default_region inside a new "system" parent node in config
Michael Pavone <pavone@retrodev.com>
parents: 1188
diff changeset
2837 srand(time(NULL));
d7be5b6e0a8d Added config file option to specify that RAM should be randomly initialized. Moved default_region inside a new "system" parent node in config
Michael Pavone <pavone@retrodev.com>
parents: 1188
diff changeset
2838 for (int i = 0; i < RAM_WORDS; i++)
d7be5b6e0a8d Added config file option to specify that RAM should be randomly initialized. Moved default_region inside a new "system" parent node in config
Michael Pavone <pavone@retrodev.com>
parents: 1188
diff changeset
2839 {
d7be5b6e0a8d Added config file option to specify that RAM should be randomly initialized. Moved default_region inside a new "system" parent node in config
Michael Pavone <pavone@retrodev.com>
parents: 1188
diff changeset
2840 gen->work_ram[i] = rand();
d7be5b6e0a8d Added config file option to specify that RAM should be randomly initialized. Moved default_region inside a new "system" parent node in config
Michael Pavone <pavone@retrodev.com>
parents: 1188
diff changeset
2841 }
d7be5b6e0a8d Added config file option to specify that RAM should be randomly initialized. Moved default_region inside a new "system" parent node in config
Michael Pavone <pavone@retrodev.com>
parents: 1188
diff changeset
2842 for (int i = 0; i < Z80_RAM_BYTES; i++)
d7be5b6e0a8d Added config file option to specify that RAM should be randomly initialized. Moved default_region inside a new "system" parent node in config
Michael Pavone <pavone@retrodev.com>
parents: 1188
diff changeset
2843 {
d7be5b6e0a8d Added config file option to specify that RAM should be randomly initialized. Moved default_region inside a new "system" parent node in config
Michael Pavone <pavone@retrodev.com>
parents: 1188
diff changeset
2844 gen->zram[i] = rand();
d7be5b6e0a8d Added config file option to specify that RAM should be randomly initialized. Moved default_region inside a new "system" parent node in config
Michael Pavone <pavone@retrodev.com>
parents: 1188
diff changeset
2845 }
d7be5b6e0a8d Added config file option to specify that RAM should be randomly initialized. Moved default_region inside a new "system" parent node in config
Michael Pavone <pavone@retrodev.com>
parents: 1188
diff changeset
2846 for (int i = 0; i < VRAM_SIZE; i++)
d7be5b6e0a8d Added config file option to specify that RAM should be randomly initialized. Moved default_region inside a new "system" parent node in config
Michael Pavone <pavone@retrodev.com>
parents: 1188
diff changeset
2847 {
1333
69c25e1188e5 Small tweak to how SAT cache updates are done. Mostly fixes the rotating cube scene in Overdrive 2
Michael Pavone <pavone@retrodev.com>
parents: 1326
diff changeset
2848 gen->vdp->vdpmem[i] = rand();
69c25e1188e5 Small tweak to how SAT cache updates are done. Mostly fixes the rotating cube scene in Overdrive 2
Michael Pavone <pavone@retrodev.com>
parents: 1326
diff changeset
2849 }
69c25e1188e5 Small tweak to how SAT cache updates are done. Mostly fixes the rotating cube scene in Overdrive 2
Michael Pavone <pavone@retrodev.com>
parents: 1326
diff changeset
2850 for (int i = 0; i < SAT_CACHE_SIZE; i++)
69c25e1188e5 Small tweak to how SAT cache updates are done. Mostly fixes the rotating cube scene in Overdrive 2
Michael Pavone <pavone@retrodev.com>
parents: 1326
diff changeset
2851 {
69c25e1188e5 Small tweak to how SAT cache updates are done. Mostly fixes the rotating cube scene in Overdrive 2
Michael Pavone <pavone@retrodev.com>
parents: 1326
diff changeset
2852 gen->vdp->sat_cache[i] = rand();
1204
d7be5b6e0a8d Added config file option to specify that RAM should be randomly initialized. Moved default_region inside a new "system" parent node in config
Michael Pavone <pavone@retrodev.com>
parents: 1188
diff changeset
2853 }
d7be5b6e0a8d Added config file option to specify that RAM should be randomly initialized. Moved default_region inside a new "system" parent node in config
Michael Pavone <pavone@retrodev.com>
parents: 1188
diff changeset
2854 for (int i = 0; i < CRAM_SIZE; i++)
d7be5b6e0a8d Added config file option to specify that RAM should be randomly initialized. Moved default_region inside a new "system" parent node in config
Michael Pavone <pavone@retrodev.com>
parents: 1188
diff changeset
2855 {
1428
2540c05520f2 New savestates are working. New config file option for selecting format states will be saved in. Mostly complete, needs a little more work before release
Michael Pavone <pavone@retrodev.com>
parents: 1427
diff changeset
2856 write_cram_internal(gen->vdp, i, rand());
1204
d7be5b6e0a8d Added config file option to specify that RAM should be randomly initialized. Moved default_region inside a new "system" parent node in config
Michael Pavone <pavone@retrodev.com>
parents: 1188
diff changeset
2857 }
1906
2d462aa78349 Make VDP VSRAM capacity respect model selection
Michael Pavone <pavone@retrodev.com>
parents: 1904
diff changeset
2858 for (int i = 0; i < gen->vdp->vsram_size; i++)
1204
d7be5b6e0a8d Added config file option to specify that RAM should be randomly initialized. Moved default_region inside a new "system" parent node in config
Michael Pavone <pavone@retrodev.com>
parents: 1188
diff changeset
2859 {
d7be5b6e0a8d Added config file option to specify that RAM should be randomly initialized. Moved default_region inside a new "system" parent node in config
Michael Pavone <pavone@retrodev.com>
parents: 1188
diff changeset
2860 gen->vdp->vsram[i] = rand();
d7be5b6e0a8d Added config file option to specify that RAM should be randomly initialized. Moved default_region inside a new "system" parent node in config
Michael Pavone <pavone@retrodev.com>
parents: 1188
diff changeset
2861 }
d7be5b6e0a8d Added config file option to specify that RAM should be randomly initialized. Moved default_region inside a new "system" parent node in config
Michael Pavone <pavone@retrodev.com>
parents: 1188
diff changeset
2862 }
2053
3414a4423de1 Merge from default
Michael Pavone <pavone@retrodev.com>
parents: 1692 2052
diff changeset
2863
1503
a763523dadf4 Added code for initializing a combined Genesis + Sega CD system when a Sega CD ISO is loaded
Michael Pavone <pavone@retrodev.com>
parents: 1452
diff changeset
2864 return gen;
a763523dadf4 Added code for initializing a combined Genesis + Sega CD system when a Sega CD ISO is loaded
Michael Pavone <pavone@retrodev.com>
parents: 1452
diff changeset
2865 }
a763523dadf4 Added code for initializing a combined Genesis + Sega CD system when a Sega CD ISO is loaded
Michael Pavone <pavone@retrodev.com>
parents: 1452
diff changeset
2866
2054
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2867 static memmap_chunk base_map[] = {
2134
9caebcfeac72 Implement word RAM interleaving in 1M mode, now passes mcd-verificator word RAM tests
Michael Pavone <pavone@retrodev.com>
parents: 2090
diff changeset
2868 {0xE00000, 0x1000000, 0xFFFF, .flags = MMAP_READ | MMAP_WRITE | MMAP_CODE},
9caebcfeac72 Implement word RAM interleaving in 1M mode, now passes mcd-verificator word RAM tests
Michael Pavone <pavone@retrodev.com>
parents: 2090
diff changeset
2869 {0xC00000, 0xE00000, 0x1FFFFF, .read_16 = (read_16_fun)vdp_port_read, .write_16 =(write_16_fun)vdp_port_write,
9caebcfeac72 Implement word RAM interleaving in 1M mode, now passes mcd-verificator word RAM tests
Michael Pavone <pavone@retrodev.com>
parents: 2090
diff changeset
2870 .read_8 = (read_8_fun)vdp_port_read_b, .write_8 = (write_8_fun)vdp_port_write_b},
9caebcfeac72 Implement word RAM interleaving in 1M mode, now passes mcd-verificator word RAM tests
Michael Pavone <pavone@retrodev.com>
parents: 2090
diff changeset
2871 {0xA00000, 0xA12000, 0x1FFFF, .read_16 = (read_16_fun)io_read_w, .write_16 = (write_16_fun)io_write_w,
9caebcfeac72 Implement word RAM interleaving in 1M mode, now passes mcd-verificator word RAM tests
Michael Pavone <pavone@retrodev.com>
parents: 2090
diff changeset
2872 .read_8 = (read_8_fun)io_read, .write_8 = (write_8_fun)io_write},
9caebcfeac72 Implement word RAM interleaving in 1M mode, now passes mcd-verificator word RAM tests
Michael Pavone <pavone@retrodev.com>
parents: 2090
diff changeset
2873 {0x000000, 0xFFFFFF, 0xFFFFFF, .read_16 = (read_16_fun)unused_read, .write_16 = unused_write,
9caebcfeac72 Implement word RAM interleaving in 1M mode, now passes mcd-verificator word RAM tests
Michael Pavone <pavone@retrodev.com>
parents: 2090
diff changeset
2874 .read_8 = (read_8_fun)unused_read_b, .write_8 = (write_8_fun)unused_write_b}
2054
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2875 };
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2876 const size_t base_chunks = sizeof(base_map)/sizeof(*base_map);
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2877
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2878 genesis_context *alloc_config_genesis(void *rom, uint32_t rom_size, void *lock_on, uint32_t lock_on_size, uint32_t ym_opts, uint8_t force_region)
1503
a763523dadf4 Added code for initializing a combined Genesis + Sega CD system when a Sega CD ISO is loaded
Michael Pavone <pavone@retrodev.com>
parents: 1452
diff changeset
2879 {
2054
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2880 tern_node *rom_db = get_rom_db();
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2881 rom_info info = configure_rom(rom_db, rom, rom_size, lock_on, lock_on_size, base_map, base_chunks);
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2882 rom = info.rom;
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2883 rom_size = info.rom_size;
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2884 #ifndef BLASTEM_BIG_ENDIAN
2150
a418fa599b2e Add ROM DB entry to fix SRAM on Triple Play: Gold Edition and make some code changes so that 3MB dumps will work too
Michael Pavone <pavone@retrodev.com>
parents: 2134
diff changeset
2885 byteswap_rom(nearest_pow2(rom_size), rom);
2054
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2886 if (lock_on) {
2150
a418fa599b2e Add ROM DB entry to fix SRAM on Triple Play: Gold Edition and make some code changes so that 3MB dumps will work too
Michael Pavone <pavone@retrodev.com>
parents: 2134
diff changeset
2887 byteswap_rom(nearest_pow2(lock_on_size), lock_on);
2054
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2888 }
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2889 #endif
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2890 char *m68k_divider = tern_find_path(config, "clocks\0m68k_divider\0", TVAL_PTR).ptrval;
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2891 if (!m68k_divider) {
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2892 m68k_divider = "7";
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2893 }
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2894 MCLKS_PER_68K = atoi(m68k_divider);
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2895 if (!MCLKS_PER_68K) {
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2896 MCLKS_PER_68K = 7;
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2897 }
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2898 genesis_context *gen = shared_init(ym_opts, &info, force_region);
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2899 gen->z80->mem_pointers[1] = gen->z80->mem_pointers[2] = rom;
1503
a763523dadf4 Added code for initializing a combined Genesis + Sega CD system when a Sega CD ISO is loaded
Michael Pavone <pavone@retrodev.com>
parents: 1452
diff changeset
2900
2054
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2901 gen->cart = rom;
1503
a763523dadf4 Added code for initializing a combined Genesis + Sega CD system when a Sega CD ISO is loaded
Michael Pavone <pavone@retrodev.com>
parents: 1452
diff changeset
2902 gen->lock_on = lock_on;
2053
3414a4423de1 Merge from default
Michael Pavone <pavone@retrodev.com>
parents: 1692 2052
diff changeset
2903
2054
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2904 setup_io_devices(config, &info, &gen->io);
1583
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2905 gen->header.has_keyboard = io_has_keyboard(&gen->io);
2054
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2906 gen->mapper_type = info.mapper_type;
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2907 gen->save_type = info.save_type;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
2908 if (gen->save_type != SAVE_NONE) {
2054
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2909 gen->save_ram_mask = info.save_mask;
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2910 gen->save_size = info.save_size;
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2911 gen->save_storage = info.save_buffer;
2286
5d3411f52d00 Fix ui.reload for locked-on ROMs
Michael Pavone <pavone@retrodev.com>
parents: 2281
diff changeset
2912 gen->header.info.save_buffer = info.save_buffer = NULL;
2054
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2913 gen->eeprom_map = info.eeprom_map;
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2914 gen->num_eeprom = info.num_eeprom;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
2915 if (gen->save_type == SAVE_I2C) {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
2916 eeprom_init(&gen->eeprom, gen->save_storage, gen->save_size);
1395
efa7225e0f07 Initial work to support parallel NOR flash and the Magistr 16
Michael Pavone <pavone@retrodev.com>
parents: 1377
diff changeset
2917 } else if (gen->save_type == SAVE_NOR) {
2054
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2918 memcpy(&gen->nor, info.nor, sizeof(gen->nor));
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2919 //nor_flash_init(&gen->nor, gen->save_storage, gen->save_size, info.save_page_size, info.save_product_id, info.save_bus);
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
2920 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
2921 } else {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
2922 gen->save_storage = NULL;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
2923 }
2052
3748a2a8a4b7 Support Sega mapper without 'SEGA SSF' in header or ROM DB entry and implement a subset of the extended Sega mapper implemented in the Mega Everdrive when 'SEGA SSF' is present
Michael Pavone <pavone@retrodev.com>
parents: 2039
diff changeset
2924
2054
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2925 gen->mapper_start_index = info.mapper_start_index;
2052
3748a2a8a4b7 Support Sega mapper without 'SEGA SSF' in header or ROM DB entry and implement a subset of the extended Sega mapper implemented in the Mega Everdrive when 'SEGA SSF' is present
Michael Pavone <pavone@retrodev.com>
parents: 2039
diff changeset
2926
2053
3414a4423de1 Merge from default
Michael Pavone <pavone@retrodev.com>
parents: 1692 2052
diff changeset
2927 tern_node *model = get_model(config, SYSTEM_GENESIS);
3414a4423de1 Merge from default
Michael Pavone <pavone@retrodev.com>
parents: 1692 2052
diff changeset
2928 uint8_t tmss = !strcmp(tern_find_ptr_default(model, "tmss", "off"), "on");
3414a4423de1 Merge from default
Michael Pavone <pavone@retrodev.com>
parents: 1692 2052
diff changeset
2929
1165
9fc680b35dbb Fix crash regression for games with some kind of mapper functionality
Michael Pavone <pavone@retrodev.com>
parents: 1130
diff changeset
2930 //This must happen before we generate memory access functions in init_m68k_opts
2034
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2931 uint8_t next_ptr_index = 0;
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2932 uint32_t tmss_min_alloc = 16 * 1024;
2054
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2933 for (int i = 0; i < info.map_chunks; i++)
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
2934 {
2054
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2935 if (info.map[i].start == 0xE00000) {
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2936 info.map[i].buffer = gen->work_ram;
2034
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2937 if (!tmss) {
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2938 break;
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2939 }
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2940 }
2054
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2941 if (info.map[i].flags & MMAP_PTR_IDX && info.map[i].ptr_index >= next_ptr_index) {
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2942 next_ptr_index = info.map[i].ptr_index + 1;
2034
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2943 }
2054
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2944 if (info.map[i].start < 0x400000 && info.map[i].read_16 != unused_read) {
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2945 uint32_t highest_offset = (info.map[i].end & info.map[i].mask) + 1;
2034
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2946 if (highest_offset > tmss_min_alloc) {
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2947 tmss_min_alloc = highest_offset;
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2948 }
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2949 }
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2950 }
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2951 if (tmss) {
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2952 char *tmss_path = tern_find_path_default(config, "system\0tmss_path\0", (tern_val){.ptrval = "tmss.md"}, TVAL_PTR).ptrval;
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2953 uint8_t *buffer = malloc(tmss_min_alloc);
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2954 uint32_t tmss_size;
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2955 if (is_absolute_path(tmss_path)) {
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2956 FILE *f = fopen(tmss_path, "rb");
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2957 if (!f) {
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2958 fatal_error("Configured to use a model with TMSS, but failed to load the TMSS ROM from %s\n", tmss_path);
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2959 }
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2960 tmss_size = fread(buffer, 1, tmss_min_alloc, f);
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2961 fclose(f);
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2962 } else {
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2963 char *tmp = read_bundled_file(tmss_path, &tmss_size);
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2964 if (!tmp) {
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2965 fatal_error("Configured to use a model with TMSS, but failed to load the TMSS ROM from %s\n", tmss_path);
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2966 }
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2967 memcpy(buffer, tmp, tmss_size);
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2968 free(tmp);
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2969 }
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2970 for (uint32_t padded = nearest_pow2(tmss_size); tmss_size < padded; tmss_size++)
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2971 {
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2972 buffer[tmss_size] = 0xFF;
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2973 }
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2974 #ifndef BLASTEM_BIG_ENDIAN
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2975 byteswap_rom(tmss_size, (uint16_t *)buffer);
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2976 #endif
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2977 //mirror TMSS ROM until we fill up to tmss_min_alloc
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2978 for (uint32_t dst = tmss_size; dst < tmss_min_alloc; dst += tmss_size)
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2979 {
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2980 memcpy(buffer + dst, buffer, dst + tmss_size > tmss_min_alloc ? tmss_min_alloc - dst : tmss_size);
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
2981 }
2034
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2982 //modify mappings for ROM space to point to the TMSS ROM and fixup flags to allow switching back and forth
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2983 //WARNING: This code makes some pretty big assumptions about the kinds of map chunks it will encounter
2054
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2984 for (int i = 0; i < info.map_chunks; i++)
2034
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2985 {
2054
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2986 if (info.map[i].start < 0x400000 && info.map[i].read_16 != unused_read) {
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2987 if (info.map[i].flags == MMAP_READ) {
2034
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2988 //Normal ROM
2054
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2989 info.map[i].flags |= MMAP_PTR_IDX | MMAP_CODE;
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2990 info.map[i].ptr_index = next_ptr_index++;
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2991 if (info.map[i].ptr_index >= NUM_MEM_AREAS) {
2034
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2992 fatal_error("Too many memmap chunks with MMAP_PTR_IDX after TMSS remap\n");
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2993 }
2054
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2994 gen->tmss_pointers[info.map[i].ptr_index] = info.map[i].buffer;
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2995 info.map[i].buffer = buffer + (info.map[i].start & ~info.map[i].mask & (tmss_size - 1));
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2996 } else if (info.map[i].flags & MMAP_PTR_IDX) {
2034
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2997 //Sega mapper page or multi-game mapper
2054
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2998 gen->tmss_pointers[info.map[i].ptr_index] = info.map[i].buffer;
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2999 info.map[i].buffer = buffer + (info.map[i].start & ~info.map[i].mask & (tmss_size - 1));
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3000 if (info.map[i].write_16) {
2034
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
3001 if (!gen->tmss_write_16) {
2054
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3002 gen->tmss_write_16 = info.map[i].write_16;
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3003 gen->tmss_write_8 = info.map[i].write_8;
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3004 info.map[i].write_16 = tmss_rom_write_16;
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3005 info.map[i].write_8 = tmss_rom_write_8;
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3006 } else if (gen->tmss_write_16 == info.map[i].write_16) {
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3007 info.map[i].write_16 = tmss_rom_write_16;
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3008 info.map[i].write_8 = tmss_rom_write_8;
2034
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
3009 } else {
2054
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3010 warning("Chunk starting at %X has a write function, but we've already stored a different one for TMSS remap\n", info.map[i].start);
2034
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
3011 }
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
3012 }
2054
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3013 } else if ((info.map[i].flags & (MMAP_READ | MMAP_WRITE)) == (MMAP_READ | MMAP_WRITE)) {
2034
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
3014 //RAM or SRAM
2054
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3015 info.map[i].flags |= MMAP_PTR_IDX;
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3016 info.map[i].ptr_index = next_ptr_index++;
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3017 gen->tmss_pointers[info.map[i].ptr_index] = info.map[i].buffer;
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3018 info.map[i].buffer = buffer + (info.map[i].start & ~info.map[i].mask & (tmss_size - 1));
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3019 if (!gen->tmss_write_offset || gen->tmss_write_offset == info.map[i].start) {
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3020 gen->tmss_write_offset = info.map[i].start;
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3021 info.map[i].flags &= ~MMAP_WRITE;
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3022 if (info.map[i].flags & MMAP_ONLY_ODD) {
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3023 info.map[i].write_16 = tmss_odd_write_16;
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3024 info.map[i].write_8 = tmss_odd_write_8;
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3025 } else if (info.map[i].flags & MMAP_ONLY_EVEN) {
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3026 info.map[i].write_16 = tmss_even_write_16;
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3027 info.map[i].write_8 = tmss_even_write_8;
2034
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
3028 } else {
2054
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3029 info.map[i].write_16 = tmss_word_write_16;
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3030 info.map[i].write_8 = tmss_word_write_8;
2034
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
3031 }
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
3032 } else {
2054
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3033 warning("Could not remap writes for chunk starting at %X for TMSS because write_offset is %X\n", info.map[i].start, gen->tmss_write_offset);
2034
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
3034 }
2054
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3035 } else if (info.map[i].flags & MMAP_READ_CODE) {
2034
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
3036 //NOR flash
2054
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3037 info.map[i].flags |= MMAP_PTR_IDX;
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3038 info.map[i].ptr_index = next_ptr_index++;
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3039 if (info.map[i].ptr_index >= NUM_MEM_AREAS) {
2034
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
3040 fatal_error("Too many memmap chunks with MMAP_PTR_IDX after TMSS remap\n");
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
3041 }
2054
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3042 gen->tmss_pointers[info.map[i].ptr_index] = info.map[i].buffer;
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3043 info.map[i].buffer = buffer + (info.map[i].start & ~info.map[i].mask & (tmss_size - 1));
2034
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
3044 if (!gen->tmss_write_16) {
2054
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3045 gen->tmss_write_16 = info.map[i].write_16;
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3046 gen->tmss_write_8 = info.map[i].write_8;
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3047 gen->tmss_read_16 = info.map[i].read_16;
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3048 gen->tmss_read_8 = info.map[i].read_8;
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3049 info.map[i].write_16 = tmss_rom_write_16;
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3050 info.map[i].write_8 = tmss_rom_write_8;
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3051 info.map[i].read_16 = tmss_rom_read_16;
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3052 info.map[i].read_8 = tmss_rom_read_8;
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3053 } else if (gen->tmss_write_16 == info.map[i].write_16) {
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3054 info.map[i].write_16 = tmss_rom_write_16;
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3055 info.map[i].write_8 = tmss_rom_write_8;
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3056 info.map[i].read_16 = tmss_rom_read_16;
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3057 info.map[i].read_8 = tmss_rom_read_8;
2034
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
3058 } else {
2054
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3059 warning("Chunk starting at %X has a write function, but we've already stored a different one for TMSS remap\n", info.map[i].start);
2034
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
3060 }
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
3061 } else {
2054
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3062 warning("Didn't remap chunk starting at %X for TMSS because it has flags %X\n", info.map[i].start, info.map[i].flags);
2034
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
3063 }
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
3064 }
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
3065 }
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
3066 gen->tmss_buffer = buffer;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
3067 }
2054
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3068 memmap_chunk* map = info.map;
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3069 uint32_t map_chunks = info.map_chunks;
2088
c716af3f8980 Enable Sega CD emulation for carts if a CD image is "locked-on" even if the cart does not specify that it uses the CD peripheral in the header
Michael Pavone <pavone@retrodev.com>
parents: 2083
diff changeset
3070 if (info.wants_cd || (current_media()->chain && current_media()->chain->type == MEDIA_CDROM)) {
2277
9e578fd493e1 Implement gain control for Ricoh PCM and CDDA with defaults based on Model 2 Sega CD
Michael Pavone <pavone@retrodev.com>
parents: 2272
diff changeset
3071 gen->header.type = SYSTEM_SEGACD;
2054
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3072 segacd_context *cd = alloc_configure_segacd((system_media *)current_media(), 0, force_region, &info);
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3073 gen->expansion = cd;
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3074 gen->version_reg &= ~NO_DISK;
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3075 cd->genesis = gen;
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3076 uint32_t cd_chunks;
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3077 memmap_chunk *cd_map = segacd_main_cpu_map(gen->expansion, 1, &cd_chunks);
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3078 map_chunks = cd_chunks + info.map_chunks;
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3079 map = calloc(map_chunks, sizeof(memmap_chunk));
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3080 memcpy(map, info.map, sizeof(memmap_chunk) * (info.map_chunks - 1));
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3081 memcpy(map + info.map_chunks - 1, cd_map, sizeof(memmap_chunk) * cd_chunks);
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3082 memcpy(map + map_chunks - 1, info.map + info.map_chunks - 1, sizeof(memmap_chunk));
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3083 free(info.map);
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3084 int max_ptr_index = -1;
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3085 for (int i = 0; i < info.map_chunks - 1; i++)
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3086 {
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3087 if (map[i].flags & MMAP_PTR_IDX && map[i].ptr_index > max_ptr_index) {
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3088 max_ptr_index = map[i].ptr_index;
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3089 }
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3090 }
2090
00b6592cad42 Fix typo that messed up Mode 1 for carts with mappers
Michael Pavone <pavone@retrodev.com>
parents: 2088
diff changeset
3091 cd->memptr_start_index = max_ptr_index + 1;
2054
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3092 for (int i = info.map_chunks - 1; i < map_chunks - 1; i++)
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3093 {
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3094 if (map[i].flags & MMAP_PTR_IDX) {
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3095 map[i].ptr_index += cd->memptr_start_index;
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3096 }
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3097 }
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3098 cd->base = 0x400000;
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
3099 cd->m68k->opts->address_log = (ym_opts & OPT_ADDRESS_LOG) ? fopen("address_sub.log", "w") : NULL;
2054
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3100 }
2248
f7e2e11f1214 Fix improper free of memory map array from rom_info
Michael Pavone <pavone@retrodev.com>
parents: 2243
diff changeset
3101 info.map = gen->header.info.map = NULL;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
3102
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
3103 m68k_options *opts = malloc(sizeof(m68k_options));
2350
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
3104 init_m68k_opts(opts, map, map_chunks, MCLKS_PER_68K, sync_components, int_ack);
1901
5433252329fb Set version reg and TAS behavior based on model config
Michael Pavone <pavone@retrodev.com>
parents: 1889
diff changeset
3105 if (!strcmp(tern_find_ptr_default(model, "tas", "broken"), "broken")) {
5433252329fb Set version reg and TAS behavior based on model config
Michael Pavone <pavone@retrodev.com>
parents: 1889
diff changeset
3106 opts->gen.flags |= M68K_OPT_BROKEN_READ_MODIFY;
5433252329fb Set version reg and TAS behavior based on model config
Michael Pavone <pavone@retrodev.com>
parents: 1889
diff changeset
3107 }
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
3108 gen->m68k = init_68k_context(opts, NULL);
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
3109 gen->m68k->system = gen;
2054
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3110 opts->address_log = (ym_opts & OPT_ADDRESS_LOG) ? fopen("address.log", "w") : NULL;
2052
3748a2a8a4b7 Support Sega mapper without 'SEGA SSF' in header or ROM DB entry and implement a subset of the extended Sega mapper implemented in the Mega Everdrive when 'SEGA SSF' is present
Michael Pavone <pavone@retrodev.com>
parents: 2039
diff changeset
3111
1165
9fc680b35dbb Fix crash regression for games with some kind of mapper functionality
Michael Pavone <pavone@retrodev.com>
parents: 1130
diff changeset
3112 //This must happen after the 68K context has been allocated
2054
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3113 for (int i = 0; i < map_chunks; i++)
1165
9fc680b35dbb Fix crash regression for games with some kind of mapper functionality
Michael Pavone <pavone@retrodev.com>
parents: 1130
diff changeset
3114 {
2054
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3115 if (map[i].flags & MMAP_PTR_IDX) {
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3116 gen->m68k->mem_pointers[map[i].ptr_index] = map[i].buffer;
1165
9fc680b35dbb Fix crash regression for games with some kind of mapper functionality
Michael Pavone <pavone@retrodev.com>
parents: 1130
diff changeset
3117 }
9fc680b35dbb Fix crash regression for games with some kind of mapper functionality
Michael Pavone <pavone@retrodev.com>
parents: 1130
diff changeset
3118 }
2052
3748a2a8a4b7 Support Sega mapper without 'SEGA SSF' in header or ROM DB entry and implement a subset of the extended Sega mapper implemented in the Mega Everdrive when 'SEGA SSF' is present
Michael Pavone <pavone@retrodev.com>
parents: 2039
diff changeset
3119
1452
f284ad74afe1 Make initial bank register state stored in bank_regs match what is put in to mem_pointers for the sega/SSF2 mapper. Invalidate RAM code ranges on RAM deserialization
Michael Pavone <pavone@retrodev.com>
parents: 1449
diff changeset
3120 if (gen->mapper_type == MAPPER_SEGA) {
f284ad74afe1 Make initial bank register state stored in bank_regs match what is put in to mem_pointers for the sega/SSF2 mapper. Invalidate RAM code ranges on RAM deserialization
Michael Pavone <pavone@retrodev.com>
parents: 1449
diff changeset
3121 //initialize bank registers
f284ad74afe1 Make initial bank register state stored in bank_regs match what is put in to mem_pointers for the sega/SSF2 mapper. Invalidate RAM code ranges on RAM deserialization
Michael Pavone <pavone@retrodev.com>
parents: 1449
diff changeset
3122 for (int i = 1; i < sizeof(gen->bank_regs); i++)
f284ad74afe1 Make initial bank register state stored in bank_regs match what is put in to mem_pointers for the sega/SSF2 mapper. Invalidate RAM code ranges on RAM deserialization
Michael Pavone <pavone@retrodev.com>
parents: 1449
diff changeset
3123 {
f284ad74afe1 Make initial bank register state stored in bank_regs match what is put in to mem_pointers for the sega/SSF2 mapper. Invalidate RAM code ranges on RAM deserialization
Michael Pavone <pavone@retrodev.com>
parents: 1449
diff changeset
3124 gen->bank_regs[i] = i;
f284ad74afe1 Make initial bank register state stored in bank_regs match what is put in to mem_pointers for the sega/SSF2 mapper. Invalidate RAM code ranges on RAM deserialization
Michael Pavone <pavone@retrodev.com>
parents: 1449
diff changeset
3125 }
f284ad74afe1 Make initial bank register state stored in bank_regs match what is put in to mem_pointers for the sega/SSF2 mapper. Invalidate RAM code ranges on RAM deserialization
Michael Pavone <pavone@retrodev.com>
parents: 1449
diff changeset
3126 }
1954
2fd0a8cb1c80 Properly initialize Genesis reset cycle on startup. Fixes crash in GDB remote debugger when stepping past the first two instructions
Michael Pavone <pavone@retrodev.com>
parents: 1946
diff changeset
3127 gen->reset_cycle = CYCLE_NEVER;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
3128
2277
9e578fd493e1 Implement gain control for Ricoh PCM and CDDA with defaults based on Model 2 Sega CD
Michael Pavone <pavone@retrodev.com>
parents: 2272
diff changeset
3129 set_audio_config(gen);
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
3130 return gen;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
3131 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
3132
1692
5dacaef602a7 Merge from default
Michael Pavone <pavone@retrodev.com>
parents: 1503 1643
diff changeset
3133 genesis_context *alloc_config_genesis_cdboot(system_media *media, uint32_t system_opts, uint8_t force_region)
1503
a763523dadf4 Added code for initializing a combined Genesis + Sega CD system when a Sega CD ISO is loaded
Michael Pavone <pavone@retrodev.com>
parents: 1452
diff changeset
3134 {
1692
5dacaef602a7 Merge from default
Michael Pavone <pavone@retrodev.com>
parents: 1503 1643
diff changeset
3135 tern_node *rom_db = get_rom_db();
5dacaef602a7 Merge from default
Michael Pavone <pavone@retrodev.com>
parents: 1503 1643
diff changeset
3136 rom_info info = configure_rom(rom_db, media->buffer, media->size, NULL, 0, base_map, base_chunks);
2267
94cca8b8429e Use byte in security code for region identification for Sega/Mega CD discs
Michael Pavone <pavone@retrodev.com>
parents: 2255
diff changeset
3137 if (media->size > 0x20B) {
94cca8b8429e Use byte in security code for region identification for Sega/Mega CD discs
Michael Pavone <pavone@retrodev.com>
parents: 2255
diff changeset
3138 //Use a byte in the security code region that's unique across all 3 regions
94cca8b8429e Use byte in security code for region identification for Sega/Mega CD discs
Michael Pavone <pavone@retrodev.com>
parents: 2255
diff changeset
3139 //since it's more reliable than the official header field for this
94cca8b8429e Use byte in security code for region identification for Sega/Mega CD discs
Michael Pavone <pavone@retrodev.com>
parents: 2255
diff changeset
3140 uint8_t *bytes = media->buffer;
94cca8b8429e Use byte in security code for region identification for Sega/Mega CD discs
Michael Pavone <pavone@retrodev.com>
parents: 2255
diff changeset
3141 switch (bytes[0x20B])
94cca8b8429e Use byte in security code for region identification for Sega/Mega CD discs
Michael Pavone <pavone@retrodev.com>
parents: 2255
diff changeset
3142 {
94cca8b8429e Use byte in security code for region identification for Sega/Mega CD discs
Michael Pavone <pavone@retrodev.com>
parents: 2255
diff changeset
3143 case 0x7A:
94cca8b8429e Use byte in security code for region identification for Sega/Mega CD discs
Michael Pavone <pavone@retrodev.com>
parents: 2255
diff changeset
3144 info.regions = REGION_U;
94cca8b8429e Use byte in security code for region identification for Sega/Mega CD discs
Michael Pavone <pavone@retrodev.com>
parents: 2255
diff changeset
3145 break;
94cca8b8429e Use byte in security code for region identification for Sega/Mega CD discs
Michael Pavone <pavone@retrodev.com>
parents: 2255
diff changeset
3146 case 0xA1:
94cca8b8429e Use byte in security code for region identification for Sega/Mega CD discs
Michael Pavone <pavone@retrodev.com>
parents: 2255
diff changeset
3147 info.regions = REGION_J;
94cca8b8429e Use byte in security code for region identification for Sega/Mega CD discs
Michael Pavone <pavone@retrodev.com>
parents: 2255
diff changeset
3148 break;
94cca8b8429e Use byte in security code for region identification for Sega/Mega CD discs
Michael Pavone <pavone@retrodev.com>
parents: 2255
diff changeset
3149 case 0x64:
94cca8b8429e Use byte in security code for region identification for Sega/Mega CD discs
Michael Pavone <pavone@retrodev.com>
parents: 2255
diff changeset
3150 info.regions = REGION_E;
94cca8b8429e Use byte in security code for region identification for Sega/Mega CD discs
Michael Pavone <pavone@retrodev.com>
parents: 2255
diff changeset
3151 break;
94cca8b8429e Use byte in security code for region identification for Sega/Mega CD discs
Michael Pavone <pavone@retrodev.com>
parents: 2255
diff changeset
3152 }
94cca8b8429e Use byte in security code for region identification for Sega/Mega CD discs
Michael Pavone <pavone@retrodev.com>
parents: 2255
diff changeset
3153 }
2053
3414a4423de1 Merge from default
Michael Pavone <pavone@retrodev.com>
parents: 1692 2052
diff changeset
3154
1692
5dacaef602a7 Merge from default
Michael Pavone <pavone@retrodev.com>
parents: 1503 1643
diff changeset
3155 segacd_context *cd = alloc_configure_segacd(media, system_opts, force_region, &info);
5dacaef602a7 Merge from default
Michael Pavone <pavone@retrodev.com>
parents: 1503 1643
diff changeset
3156 genesis_context *gen = shared_init(system_opts, &info, force_region);
1503
a763523dadf4 Added code for initializing a combined Genesis + Sega CD system when a Sega CD ISO is loaded
Michael Pavone <pavone@retrodev.com>
parents: 1452
diff changeset
3157 gen->cart = gen->lock_on = NULL;
a763523dadf4 Added code for initializing a combined Genesis + Sega CD system when a Sega CD ISO is loaded
Michael Pavone <pavone@retrodev.com>
parents: 1452
diff changeset
3158 gen->save_storage = NULL;
a763523dadf4 Added code for initializing a combined Genesis + Sega CD system when a Sega CD ISO is loaded
Michael Pavone <pavone@retrodev.com>
parents: 1452
diff changeset
3159 gen->save_type = SAVE_NONE;
a763523dadf4 Added code for initializing a combined Genesis + Sega CD system when a Sega CD ISO is loaded
Michael Pavone <pavone@retrodev.com>
parents: 1452
diff changeset
3160 gen->version_reg &= ~NO_DISK;
2053
3414a4423de1 Merge from default
Michael Pavone <pavone@retrodev.com>
parents: 1692 2052
diff changeset
3161
1503
a763523dadf4 Added code for initializing a combined Genesis + Sega CD system when a Sega CD ISO is loaded
Michael Pavone <pavone@retrodev.com>
parents: 1452
diff changeset
3162 gen->expansion = cd;
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
3163 cd->m68k->opts->address_log = (system_opts & OPT_ADDRESS_LOG) ? fopen("address_sub.log", "w") : NULL;
2054
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3164 gen->version_reg &= ~NO_DISK;
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3165 cd->genesis = gen;
1692
5dacaef602a7 Merge from default
Michael Pavone <pavone@retrodev.com>
parents: 1503 1643
diff changeset
3166 setup_io_devices(config, &info, &gen->io);
2053
3414a4423de1 Merge from default
Michael Pavone <pavone@retrodev.com>
parents: 1692 2052
diff changeset
3167
1503
a763523dadf4 Added code for initializing a combined Genesis + Sega CD system when a Sega CD ISO is loaded
Michael Pavone <pavone@retrodev.com>
parents: 1452
diff changeset
3168 uint32_t cd_chunks;
2054
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3169 memmap_chunk *cd_map = segacd_main_cpu_map(gen->expansion, 0, &cd_chunks);
1503
a763523dadf4 Added code for initializing a combined Genesis + Sega CD system when a Sega CD ISO is loaded
Michael Pavone <pavone@retrodev.com>
parents: 1452
diff changeset
3170 memmap_chunk *map = malloc(sizeof(memmap_chunk) * (cd_chunks + base_chunks));
a763523dadf4 Added code for initializing a combined Genesis + Sega CD system when a Sega CD ISO is loaded
Michael Pavone <pavone@retrodev.com>
parents: 1452
diff changeset
3171 memcpy(map, cd_map, sizeof(memmap_chunk) * cd_chunks);
a763523dadf4 Added code for initializing a combined Genesis + Sega CD system when a Sega CD ISO is loaded
Michael Pavone <pavone@retrodev.com>
parents: 1452
diff changeset
3172 memcpy(map + cd_chunks, base_map, sizeof(memmap_chunk) * base_chunks);
a763523dadf4 Added code for initializing a combined Genesis + Sega CD system when a Sega CD ISO is loaded
Michael Pavone <pavone@retrodev.com>
parents: 1452
diff changeset
3173 map[cd_chunks].buffer = gen->work_ram;
a763523dadf4 Added code for initializing a combined Genesis + Sega CD system when a Sega CD ISO is loaded
Michael Pavone <pavone@retrodev.com>
parents: 1452
diff changeset
3174 uint32_t num_chunks = cd_chunks + base_chunks;
2053
3414a4423de1 Merge from default
Michael Pavone <pavone@retrodev.com>
parents: 1692 2052
diff changeset
3175
1503
a763523dadf4 Added code for initializing a combined Genesis + Sega CD system when a Sega CD ISO is loaded
Michael Pavone <pavone@retrodev.com>
parents: 1452
diff changeset
3176 m68k_options *opts = malloc(sizeof(m68k_options));
2350
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
3177 init_m68k_opts(opts, map, num_chunks, MCLKS_PER_68K, sync_components, int_ack);
1503
a763523dadf4 Added code for initializing a combined Genesis + Sega CD system when a Sega CD ISO is loaded
Michael Pavone <pavone@retrodev.com>
parents: 1452
diff changeset
3178 //TODO: make this configurable
a763523dadf4 Added code for initializing a combined Genesis + Sega CD system when a Sega CD ISO is loaded
Michael Pavone <pavone@retrodev.com>
parents: 1452
diff changeset
3179 opts->gen.flags |= M68K_OPT_BROKEN_READ_MODIFY;
a763523dadf4 Added code for initializing a combined Genesis + Sega CD system when a Sega CD ISO is loaded
Michael Pavone <pavone@retrodev.com>
parents: 1452
diff changeset
3180 gen->m68k = init_68k_context(opts, NULL);
a763523dadf4 Added code for initializing a combined Genesis + Sega CD system when a Sega CD ISO is loaded
Michael Pavone <pavone@retrodev.com>
parents: 1452
diff changeset
3181 gen->m68k->system = gen;
a763523dadf4 Added code for initializing a combined Genesis + Sega CD system when a Sega CD ISO is loaded
Michael Pavone <pavone@retrodev.com>
parents: 1452
diff changeset
3182 opts->address_log = (system_opts & OPT_ADDRESS_LOG) ? fopen("address.log", "w") : NULL;
2053
3414a4423de1 Merge from default
Michael Pavone <pavone@retrodev.com>
parents: 1692 2052
diff changeset
3183
1503
a763523dadf4 Added code for initializing a combined Genesis + Sega CD system when a Sega CD ISO is loaded
Michael Pavone <pavone@retrodev.com>
parents: 1452
diff changeset
3184 //This must happen after the 68K context has been allocated
a763523dadf4 Added code for initializing a combined Genesis + Sega CD system when a Sega CD ISO is loaded
Michael Pavone <pavone@retrodev.com>
parents: 1452
diff changeset
3185 for (int i = 0; i < num_chunks; i++)
a763523dadf4 Added code for initializing a combined Genesis + Sega CD system when a Sega CD ISO is loaded
Michael Pavone <pavone@retrodev.com>
parents: 1452
diff changeset
3186 {
a763523dadf4 Added code for initializing a combined Genesis + Sega CD system when a Sega CD ISO is loaded
Michael Pavone <pavone@retrodev.com>
parents: 1452
diff changeset
3187 if (map[i].flags & MMAP_PTR_IDX) {
a763523dadf4 Added code for initializing a combined Genesis + Sega CD system when a Sega CD ISO is loaded
Michael Pavone <pavone@retrodev.com>
parents: 1452
diff changeset
3188 gen->m68k->mem_pointers[map[i].ptr_index] = map[i].buffer;
a763523dadf4 Added code for initializing a combined Genesis + Sega CD system when a Sega CD ISO is loaded
Michael Pavone <pavone@retrodev.com>
parents: 1452
diff changeset
3189 }
a763523dadf4 Added code for initializing a combined Genesis + Sega CD system when a Sega CD ISO is loaded
Michael Pavone <pavone@retrodev.com>
parents: 1452
diff changeset
3190 }
2083
372625dd9590 Persist BRAM to file. Load BIOS relative to blastem directory
Michael Pavone <pavone@retrodev.com>
parents: 2080
diff changeset
3191 gen->header.type = SYSTEM_SEGACD;
2277
9e578fd493e1 Implement gain control for Ricoh PCM and CDDA with defaults based on Model 2 Sega CD
Michael Pavone <pavone@retrodev.com>
parents: 2272
diff changeset
3192
9e578fd493e1 Implement gain control for Ricoh PCM and CDDA with defaults based on Model 2 Sega CD
Michael Pavone <pavone@retrodev.com>
parents: 2272
diff changeset
3193 set_audio_config(gen);
1503
a763523dadf4 Added code for initializing a combined Genesis + Sega CD system when a Sega CD ISO is loaded
Michael Pavone <pavone@retrodev.com>
parents: 1452
diff changeset
3194 return gen;
a763523dadf4 Added code for initializing a combined Genesis + Sega CD system when a Sega CD ISO is loaded
Michael Pavone <pavone@retrodev.com>
parents: 1452
diff changeset
3195 }
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3196
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3197 static memmap_chunk pico_base_map[] = {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3198 {0xE00000, 0x1000000, 0xFFFF, .flags = MMAP_READ | MMAP_WRITE | MMAP_CODE},
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3199 {0xC00000, 0xE00000, 0x1FFFFF, .read_16 = (read_16_fun)vdp_port_read, .write_16 =(write_16_fun)vdp_port_write,
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3200 .read_8 = (read_8_fun)vdp_port_read_b, .write_8 = (write_8_fun)vdp_port_write_b},
2459
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
3201 {0x800000, 0x900000, 0xFFFFFF, .read_16 = pico_io_read_w, .write_16 = pico_io_write_w,
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
3202 .read_8 = pico_io_read, .write_8 = pico_io_write},
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
3203 {0xB00000, 0xC00000, 0xFFFFFF, .read_16 = copera_io_read_w, .write_16 = copera_io_write_w,
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
3204 .read_8 = copera_io_read, .write_8 = copera_io_write}
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3205 };
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3206 const size_t pico_base_chunks = sizeof(pico_base_map)/sizeof(*pico_base_map);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3207
2459
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
3208 genesis_context* alloc_config_pico(void *rom, uint32_t rom_size, void *lock_on, uint32_t lock_on_size, uint32_t ym_opts, uint8_t force_region, system_type stype)
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3209 {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3210 tern_node *rom_db = get_rom_db();
2459
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
3211 uint32_t chunks = pico_base_chunks;
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
3212 if (stype == SYSTEM_PICO) {
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
3213 chunks--;
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
3214 }
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
3215 rom_info info = configure_rom(rom_db, rom, rom_size, lock_on, lock_on_size, pico_base_map, chunks);
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3216 rom = info.rom;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3217 rom_size = info.rom_size;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3218 #ifndef BLASTEM_BIG_ENDIAN
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3219 byteswap_rom(nearest_pow2(rom_size), rom);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3220 if (lock_on) {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3221 byteswap_rom(nearest_pow2(lock_on_size), lock_on);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3222 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3223 #endif
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3224 char *m68k_divider = tern_find_path(config, "clocks\0m68k_divider\0", TVAL_PTR).ptrval;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3225 if (!m68k_divider) {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3226 m68k_divider = "7";
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3227 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3228 MCLKS_PER_68K = atoi(m68k_divider);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3229 if (!MCLKS_PER_68K) {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3230 MCLKS_PER_68K = 7;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3231 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3232 genesis_context *gen = calloc(1, sizeof(genesis_context));
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3233 gen->header.set_speed_percent = set_speed_percent;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3234 gen->header.start_context = start_genesis;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3235 gen->header.resume_context = resume_genesis;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3236 gen->header.load_save = load_save;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3237 gen->header.persist_save = persist_save;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3238 gen->header.load_state = load_state;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3239 gen->header.soft_reset = soft_reset;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3240 gen->header.free_context = free_genesis;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3241 gen->header.get_open_bus_value = get_open_bus_value;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3242 gen->header.request_exit = request_exit;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3243 gen->header.inc_debug_mode = inc_debug_mode;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3244 gen->header.gamepad_down = gamepad_down_pico;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3245 gen->header.gamepad_up = gamepad_up_pico;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3246 gen->header.mouse_down = mouse_down_pico;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3247 gen->header.mouse_up = mouse_up_pico;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3248 gen->header.mouse_motion_absolute = mouse_motion_absolute_pico;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3249 gen->header.mouse_motion_relative = mouse_motion_relative_pico;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3250 gen->header.keyboard_down = keyboard_down_pico;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3251 gen->header.keyboard_up = keyboard_up_pico;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3252 gen->header.config_updated = config_updated;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3253 gen->header.serialize = serialize;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3254 gen->header.deserialize = deserialize;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3255 gen->header.start_vgm_log = start_vgm_log;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3256 gen->header.stop_vgm_log = stop_vgm_log;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3257 gen->header.toggle_debug_view = toggle_debug_view;
2459
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
3258 gen->header.type = stype;
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3259 gen->header.info = info;
2437
79a8cccb6ac1 Add region override for German version of The Lion King for Pico
Michael Pavone <pavone@retrodev.com>
parents: 2433
diff changeset
3260 set_region(gen, &info, force_region);
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3261 gen->vdp_unlocked = 1;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3262 gen->pico_button_state = 0xFF;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3263
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3264 gen->vdp = init_vdp_context((gen->version_reg & 0x60) == 0x20, 40, VDP_GENESIS);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3265 gen->vdp->system = &gen->header;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3266 gen->frame_end = vdp_cycles_to_frame_end(gen->vdp);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3267 char * config_cycles = tern_find_path(config, "clocks\0max_cycles\0", TVAL_PTR).ptrval;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3268 gen->max_cycles = config_cycles ? atoi(config_cycles) : DEFAULT_SYNC_INTERVAL;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3269 gen->int_latency_prev1 = MCLKS_PER_68K * 32;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3270 gen->int_latency_prev2 = MCLKS_PER_68K * 16;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3271
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3272 render_set_video_standard((gen->version_reg & 0x60) == 0x20 ? VID_PAL : VID_NTSC);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3273
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3274 gen->psg = calloc(1, sizeof(psg_context));
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3275 psg_init(gen->psg, gen->master_clock, MCLKS_PER_PSG);
2431
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
3276
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
3277 gen->adpcm = calloc(1, sizeof(pico_pcm));
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
3278 pico_pcm_init(gen->adpcm, gen->master_clock, 42);
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
3279
2460
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
3280 if (stype == SYSTEM_COPERA) {
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
3281 gen->ymz = calloc(1, sizeof(*gen->ymz));
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
3282 //This divider is just a guess, PCB diagram in MAME shows no other crystal
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
3283 //Datasheet says the typical clock is 16.9344 MHz
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
3284 //Master clock / 3 is 17.897725 MHz which is reasonably close
2558
3f58fec775df Initial work on YMF262 (aka OPL3) emulation
Michael Pavone <pavone@retrodev.com>
parents: 2556
diff changeset
3285 //FIXME: Copera does actually have a separate crystal for these
2466
b5640ac9aea9 Initial stab at PCM/ADPCM support in YMZ263B emulation
Michael Pavone <pavone@retrodev.com>
parents: 2460
diff changeset
3286 ymz263b_init(gen->ymz, gen->master_clock, 3);
2558
3f58fec775df Initial work on YMF262 (aka OPL3) emulation
Michael Pavone <pavone@retrodev.com>
parents: 2556
diff changeset
3287 gen->opl = calloc(1, sizeof(*gen->opl));
3f58fec775df Initial work on YMF262 (aka OPL3) emulation
Michael Pavone <pavone@retrodev.com>
parents: 2556
diff changeset
3288 ymf262_init(gen->opl, gen->master_clock, 3, ym_opts);
2460
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
3289 }
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
3290
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3291 gen->work_ram = calloc(2, RAM_WORDS);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3292 if (!strcmp("random", tern_find_path_default(config, "system\0ram_init\0", (tern_val){.ptrval = "zero"}, TVAL_PTR).ptrval))
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3293 {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3294 srand(time(NULL));
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3295 for (int i = 0; i < RAM_WORDS; i++)
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3296 {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3297 gen->work_ram[i] = rand();
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3298 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3299 for (int i = 0; i < VRAM_SIZE; i++)
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3300 {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3301 gen->vdp->vdpmem[i] = rand();
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3302 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3303 for (int i = 0; i < SAT_CACHE_SIZE; i++)
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3304 {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3305 gen->vdp->sat_cache[i] = rand();
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3306 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3307 for (int i = 0; i < CRAM_SIZE; i++)
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3308 {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3309 write_cram_internal(gen->vdp, i, rand());
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3310 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3311 for (int i = 0; i < gen->vdp->vsram_size; i++)
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3312 {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3313 gen->vdp->vsram[i] = rand();
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3314 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3315 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3316 gen->cart = rom;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3317 gen->lock_on = lock_on;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3318 gen->header.has_keyboard = 0; //TODO: Keyboard Pico emulation
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3319 gen->mapper_type = info.mapper_type;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3320 gen->save_type = info.save_type;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3321 if (gen->save_type != SAVE_NONE) {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3322 gen->save_ram_mask = info.save_mask;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3323 gen->save_size = info.save_size;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3324 gen->save_storage = info.save_buffer;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3325 gen->header.info.save_buffer = info.save_buffer = NULL;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3326 gen->eeprom_map = info.eeprom_map;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3327 gen->num_eeprom = info.num_eeprom;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3328 if (gen->save_type == SAVE_I2C) {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3329 eeprom_init(&gen->eeprom, gen->save_storage, gen->save_size);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3330 } else if (gen->save_type == SAVE_NOR) {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3331 memcpy(&gen->nor, info.nor, sizeof(gen->nor));
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3332 //nor_flash_init(&gen->nor, gen->save_storage, gen->save_size, info.save_page_size, info.save_product_id, info.save_bus);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3333 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3334 } else {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3335 gen->save_storage = NULL;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3336 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3337
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3338 gen->mapper_start_index = info.mapper_start_index;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3339 //This must happen before we generate memory access functions in init_m68k_opts
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3340 for (int i = 0; i < info.map_chunks; i++)
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3341 {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3342 if (info.map[i].start == 0xE00000) {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3343 info.map[i].buffer = gen->work_ram;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3344 break;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3345 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3346 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3347
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3348 memmap_chunk* map = info.map;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3349 uint32_t map_chunks = info.map_chunks;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3350 info.map = gen->header.info.map = NULL;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3351
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3352 m68k_options *opts = malloc(sizeof(m68k_options));
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3353 init_m68k_opts(opts, map, map_chunks, MCLKS_PER_68K, sync_components_pico, int_ack);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3354 //TODO: Pico model selection
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3355 //if (!strcmp(tern_find_ptr_default(model, "tas", "broken"), "broken")) {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3356 opts->gen.flags |= M68K_OPT_BROKEN_READ_MODIFY;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3357 //}
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3358 gen->m68k = init_68k_context(opts, NULL);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3359 gen->m68k->system = gen;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3360 opts->address_log = (ym_opts & OPT_ADDRESS_LOG) ? fopen("address.log", "w") : NULL;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3361
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3362 //This must happen after the 68K context has been allocated
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3363 for (int i = 0; i < map_chunks; i++)
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3364 {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3365 if (map[i].flags & MMAP_PTR_IDX) {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3366 gen->m68k->mem_pointers[map[i].ptr_index] = map[i].buffer;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3367 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3368 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3369
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3370 if (gen->mapper_type == MAPPER_SEGA) {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3371 //initialize bank registers
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3372 for (int i = 1; i < sizeof(gen->bank_regs); i++)
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3373 {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3374 gen->bank_regs[i] = i;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3375 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3376 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3377 gen->reset_cycle = CYCLE_NEVER;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3378
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3379 set_audio_config(gen);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3380 bindings_set_mouse_mode(MOUSE_ABSOLUTE);
2429
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
3381 memset(gen->pico_story_pages, 0xFF, sizeof(gen->pico_story_pages));
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
3382 #ifndef IS_LIB
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
3383 gen->pico_story_window = render_create_window("Pico Storybook & Pad", 640, 640, NULL);
2438
bed4d3db8a3f More flexible loading of Pico storyware assets
Michael Pavone <pavone@retrodev.com>
parents: 2437
diff changeset
3384 char *manifest_name = alloc_concat(current_media()->name, ".manifest");
bed4d3db8a3f More flexible loading of Pico storyware assets
Michael Pavone <pavone@retrodev.com>
parents: 2437
diff changeset
3385 char *manifest_str = load_media_subfile(current_media(), manifest_name, NULL);
bed4d3db8a3f More flexible loading of Pico storyware assets
Michael Pavone <pavone@retrodev.com>
parents: 2437
diff changeset
3386 tern_node *manifest = NULL;
bed4d3db8a3f More flexible loading of Pico storyware assets
Michael Pavone <pavone@retrodev.com>
parents: 2437
diff changeset
3387 if (manifest_str) {
bed4d3db8a3f More flexible loading of Pico storyware assets
Michael Pavone <pavone@retrodev.com>
parents: 2437
diff changeset
3388 manifest = parse_config(manifest_str);
bed4d3db8a3f More flexible loading of Pico storyware assets
Michael Pavone <pavone@retrodev.com>
parents: 2437
diff changeset
3389 if (!manifest) {
bed4d3db8a3f More flexible loading of Pico storyware assets
Michael Pavone <pavone@retrodev.com>
parents: 2437
diff changeset
3390 printf("Failed to parse manifest %s\n", manifest_name);
bed4d3db8a3f More flexible loading of Pico storyware assets
Michael Pavone <pavone@retrodev.com>
parents: 2437
diff changeset
3391 }
bed4d3db8a3f More flexible loading of Pico storyware assets
Michael Pavone <pavone@retrodev.com>
parents: 2437
diff changeset
3392 } else {
bed4d3db8a3f More flexible loading of Pico storyware assets
Michael Pavone <pavone@retrodev.com>
parents: 2437
diff changeset
3393 printf("Manifest file %s not found\n", manifest_name);
bed4d3db8a3f More flexible loading of Pico storyware assets
Michael Pavone <pavone@retrodev.com>
parents: 2437
diff changeset
3394 }
bed4d3db8a3f More flexible loading of Pico storyware assets
Michael Pavone <pavone@retrodev.com>
parents: 2437
diff changeset
3395
bed4d3db8a3f More flexible loading of Pico storyware assets
Michael Pavone <pavone@retrodev.com>
parents: 2437
diff changeset
3396 tern_node *pages = tern_find_node(manifest, "pages");
bed4d3db8a3f More flexible loading of Pico storyware assets
Michael Pavone <pavone@retrodev.com>
parents: 2437
diff changeset
3397 if (!pages && manifest) {
bed4d3db8a3f More flexible loading of Pico storyware assets
Michael Pavone <pavone@retrodev.com>
parents: 2437
diff changeset
3398 printf("No pages key in %s\n", manifest_name);
2429
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
3399 }
2438
bed4d3db8a3f More flexible loading of Pico storyware assets
Michael Pavone <pavone@retrodev.com>
parents: 2437
diff changeset
3400 char numkey[18];
bed4d3db8a3f More flexible loading of Pico storyware assets
Michael Pavone <pavone@retrodev.com>
parents: 2437
diff changeset
3401 for (int i = 0; i < 7; i++) {
bed4d3db8a3f More flexible loading of Pico storyware assets
Michael Pavone <pavone@retrodev.com>
parents: 2437
diff changeset
3402 uint8_t *img_data;
bed4d3db8a3f More flexible loading of Pico storyware assets
Michael Pavone <pavone@retrodev.com>
parents: 2437
diff changeset
3403 uint32_t img_size;
2429
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
3404 if (pages) {
2438
bed4d3db8a3f More flexible loading of Pico storyware assets
Michael Pavone <pavone@retrodev.com>
parents: 2437
diff changeset
3405 sprintf(numkey, "%d", i);
bed4d3db8a3f More flexible loading of Pico storyware assets
Michael Pavone <pavone@retrodev.com>
parents: 2437
diff changeset
3406 char *page_path = tern_find_ptr(pages, numkey);
bed4d3db8a3f More flexible loading of Pico storyware assets
Michael Pavone <pavone@retrodev.com>
parents: 2437
diff changeset
3407 if (page_path) {
bed4d3db8a3f More flexible loading of Pico storyware assets
Michael Pavone <pavone@retrodev.com>
parents: 2437
diff changeset
3408 printf("page %d: %s\n", i, page_path);
bed4d3db8a3f More flexible loading of Pico storyware assets
Michael Pavone <pavone@retrodev.com>
parents: 2437
diff changeset
3409 } else {
bed4d3db8a3f More flexible loading of Pico storyware assets
Michael Pavone <pavone@retrodev.com>
parents: 2437
diff changeset
3410 continue;
bed4d3db8a3f More flexible loading of Pico storyware assets
Michael Pavone <pavone@retrodev.com>
parents: 2437
diff changeset
3411 }
bed4d3db8a3f More flexible loading of Pico storyware assets
Michael Pavone <pavone@retrodev.com>
parents: 2437
diff changeset
3412 img_data = load_media_subfile(current_media(), page_path, &img_size);
bed4d3db8a3f More flexible loading of Pico storyware assets
Michael Pavone <pavone@retrodev.com>
parents: 2437
diff changeset
3413 if (!img_data) {
bed4d3db8a3f More flexible loading of Pico storyware assets
Michael Pavone <pavone@retrodev.com>
parents: 2437
diff changeset
3414 printf("Failed to load image file for page %d from %s\n", i, page_path);
bed4d3db8a3f More flexible loading of Pico storyware assets
Michael Pavone <pavone@retrodev.com>
parents: 2437
diff changeset
3415 continue;
bed4d3db8a3f More flexible loading of Pico storyware assets
Michael Pavone <pavone@retrodev.com>
parents: 2437
diff changeset
3416 }
bed4d3db8a3f More flexible loading of Pico storyware assets
Michael Pavone <pavone@retrodev.com>
parents: 2437
diff changeset
3417 } else {
bed4d3db8a3f More flexible loading of Pico storyware assets
Michael Pavone <pavone@retrodev.com>
parents: 2437
diff changeset
3418 sprintf(numkey, "_%d.png", i);
bed4d3db8a3f More flexible loading of Pico storyware assets
Michael Pavone <pavone@retrodev.com>
parents: 2437
diff changeset
3419 char *img_path = alloc_concat(current_media()->name, numkey);
bed4d3db8a3f More flexible loading of Pico storyware assets
Michael Pavone <pavone@retrodev.com>
parents: 2437
diff changeset
3420 img_data = load_media_subfile(current_media(), img_path, &img_size);
bed4d3db8a3f More flexible loading of Pico storyware assets
Michael Pavone <pavone@retrodev.com>
parents: 2437
diff changeset
3421 if (!img_data) {
bed4d3db8a3f More flexible loading of Pico storyware assets
Michael Pavone <pavone@retrodev.com>
parents: 2437
diff changeset
3422 sprintf(numkey, "_%d.PNG", i);
bed4d3db8a3f More flexible loading of Pico storyware assets
Michael Pavone <pavone@retrodev.com>
parents: 2437
diff changeset
3423 char *img_path_loud = alloc_concat(current_media()->name, numkey);
bed4d3db8a3f More flexible loading of Pico storyware assets
Michael Pavone <pavone@retrodev.com>
parents: 2437
diff changeset
3424 img_data = load_media_subfile(current_media(), img_path_loud, &img_size);
bed4d3db8a3f More flexible loading of Pico storyware assets
Michael Pavone <pavone@retrodev.com>
parents: 2437
diff changeset
3425 if (!img_data) {
bed4d3db8a3f More flexible loading of Pico storyware assets
Michael Pavone <pavone@retrodev.com>
parents: 2437
diff changeset
3426 printf("Failed to load image file for page %d from %s or %s\n", i, img_path, img_path_loud);
bed4d3db8a3f More flexible loading of Pico storyware assets
Michael Pavone <pavone@retrodev.com>
parents: 2437
diff changeset
3427 free(img_path);
bed4d3db8a3f More flexible loading of Pico storyware assets
Michael Pavone <pavone@retrodev.com>
parents: 2437
diff changeset
3428 free(img_path_loud);
2429
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
3429 continue;
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
3430 }
2438
bed4d3db8a3f More flexible loading of Pico storyware assets
Michael Pavone <pavone@retrodev.com>
parents: 2437
diff changeset
3431 free(img_path_loud);
2429
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
3432 }
2438
bed4d3db8a3f More flexible loading of Pico storyware assets
Michael Pavone <pavone@retrodev.com>
parents: 2437
diff changeset
3433 free(img_path);
2429
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
3434 }
2438
bed4d3db8a3f More flexible loading of Pico storyware assets
Michael Pavone <pavone@retrodev.com>
parents: 2437
diff changeset
3435
bed4d3db8a3f More flexible loading of Pico storyware assets
Michael Pavone <pavone@retrodev.com>
parents: 2437
diff changeset
3436 gen->pico_story_pages[i] = render_static_image(gen->pico_story_window, img_data, img_size);
bed4d3db8a3f More flexible loading of Pico storyware assets
Michael Pavone <pavone@retrodev.com>
parents: 2437
diff changeset
3437 if (gen->pico_story_pages[i] == 0xFF) {
bed4d3db8a3f More flexible loading of Pico storyware assets
Michael Pavone <pavone@retrodev.com>
parents: 2437
diff changeset
3438 printf("Failed to decode image for page %d\n", i);
bed4d3db8a3f More flexible loading of Pico storyware assets
Michael Pavone <pavone@retrodev.com>
parents: 2437
diff changeset
3439 }
bed4d3db8a3f More flexible loading of Pico storyware assets
Michael Pavone <pavone@retrodev.com>
parents: 2437
diff changeset
3440 free(img_data);
2429
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
3441 }
2438
bed4d3db8a3f More flexible loading of Pico storyware assets
Michael Pavone <pavone@retrodev.com>
parents: 2437
diff changeset
3442
bed4d3db8a3f More flexible loading of Pico storyware assets
Michael Pavone <pavone@retrodev.com>
parents: 2437
diff changeset
3443 free(manifest_name);
bed4d3db8a3f More flexible loading of Pico storyware assets
Michael Pavone <pavone@retrodev.com>
parents: 2437
diff changeset
3444 tern_free(manifest);
2429
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
3445 pico_update_page(gen);
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
3446 #endif
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3447 return gen;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3448 }