src/gb/core.c (view raw)
1/* Copyright (c) 2013-2016 Jeffrey Pfau
2 *
3 * This Source Code Form is subject to the terms of the Mozilla Public
4 * License, v. 2.0. If a copy of the MPL was not distributed with this
5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
6#include <mgba/gb/core.h>
7
8#include <mgba/core/core.h>
9#include <mgba/internal/debugger/symbols.h>
10#include <mgba/internal/gb/cheats.h>
11#include <mgba/internal/gb/debugger/symbols.h>
12#include <mgba/internal/gb/extra/cli.h>
13#include <mgba/internal/gb/io.h>
14#include <mgba/internal/gb/gb.h>
15#include <mgba/internal/gb/input.h>
16#include <mgba/internal/gb/mbc.h>
17#include <mgba/internal/gb/overrides.h>
18#include <mgba/internal/gb/renderers/software.h>
19#include <mgba/internal/gb/renderers/proxy.h>
20#include <mgba/internal/gb/serialize.h>
21#include <mgba/internal/lr35902/lr35902.h>
22#include <mgba/internal/lr35902/debugger/debugger.h>
23#include <mgba-util/crc32.h>
24#include <mgba-util/memory.h>
25#include <mgba-util/patch.h>
26#include <mgba-util/vfs.h>
27
28#ifndef MINIMAL_CORE
29#include <mgba/internal/gba/input.h>
30#endif
31
32static const struct mCoreChannelInfo _GBVideoLayers[] = {
33 { 0, "bg", "Background", NULL },
34 { 1, "bgwin", "Window", NULL },
35 { 2, "obj", "Objects", NULL },
36};
37
38static const struct mCoreChannelInfo _GBAudioChannels[] = {
39 { 0, "ch1", "Channel 1", "Square/Sweep" },
40 { 1, "ch2", "Channel 2", "Square" },
41 { 2, "ch3", "Channel 3", "PCM" },
42 { 3, "ch4", "Channel 4", "Noise" },
43};
44
45static const struct LR35902Segment _GBSegments[] = {
46 { .name = "ROM", .start = GB_BASE_CART_BANK1, .end = GB_BASE_VRAM },
47 { .name = "RAM", .start = GB_BASE_EXTERNAL_RAM, .end = GB_BASE_WORKING_RAM_BANK0 },
48 { 0 }
49};
50
51static const struct LR35902Segment _GBCSegments[] = {
52 { .name = "ROM", .start = GB_BASE_CART_BANK1, .end = GB_BASE_VRAM },
53 { .name = "RAM", .start = GB_BASE_EXTERNAL_RAM, .end = GB_BASE_WORKING_RAM_BANK0 },
54 { .name = "WRAM", .start = GB_BASE_WORKING_RAM_BANK1, .end = 0xE000 },
55 { .name = "VRAM", .start = GB_BASE_VRAM, .end = GB_BASE_EXTERNAL_RAM },
56 { 0 }
57};
58
59static const struct mCoreMemoryBlock _GBMemoryBlocks[] = {
60 { -1, "mem", "All", "All", 0, 0x10000, 0x10000, mCORE_MEMORY_VIRTUAL },
61 { GB_REGION_CART_BANK0, "cart0", "ROM Bank", "Game Pak (32kiB)", GB_BASE_CART_BANK0, GB_SIZE_CART_BANK0 * 2, 0x800000, mCORE_MEMORY_READ | mCORE_MEMORY_MAPPED, 511 },
62 { GB_REGION_VRAM, "vram", "VRAM", "Video RAM (8kiB)", GB_BASE_VRAM, GB_BASE_VRAM + GB_SIZE_VRAM, GB_SIZE_VRAM, mCORE_MEMORY_RW | mCORE_MEMORY_MAPPED },
63 { GB_REGION_EXTERNAL_RAM, "sram", "SRAM", "External RAM (8kiB)", GB_BASE_EXTERNAL_RAM, GB_BASE_EXTERNAL_RAM + GB_SIZE_EXTERNAL_RAM, GB_SIZE_EXTERNAL_RAM * 4, mCORE_MEMORY_RW | mCORE_MEMORY_MAPPED, 3 },
64 { GB_REGION_WORKING_RAM_BANK0, "wram", "WRAM", "Working RAM (8kiB)", GB_BASE_WORKING_RAM_BANK0, GB_BASE_WORKING_RAM_BANK0 + GB_SIZE_WORKING_RAM_BANK0 * 2 , GB_SIZE_WORKING_RAM_BANK0 * 2, mCORE_MEMORY_RW | mCORE_MEMORY_MAPPED },
65 { GB_BASE_OAM, "oam", "OAM", "OBJ Attribute Memory", GB_BASE_OAM, GB_BASE_OAM + GB_SIZE_OAM, GB_SIZE_OAM, mCORE_MEMORY_RW | mCORE_MEMORY_MAPPED },
66 { GB_BASE_IO, "io", "MMIO", "Memory-Mapped I/O", GB_BASE_IO, GB_BASE_IO + GB_SIZE_IO, GB_SIZE_IO, mCORE_MEMORY_RW | mCORE_MEMORY_MAPPED },
67 { GB_BASE_HRAM, "hram", "HRAM", "High RAM", GB_BASE_HRAM, GB_BASE_HRAM + GB_SIZE_HRAM, GB_SIZE_HRAM, mCORE_MEMORY_RW | mCORE_MEMORY_MAPPED },
68};
69
70static const struct mCoreMemoryBlock _GBCMemoryBlocks[] = {
71 { -1, "mem", "All", "All", 0, 0x10000, 0x10000, mCORE_MEMORY_VIRTUAL },
72 { GB_REGION_CART_BANK0, "cart0", "ROM Bank", "Game Pak (32kiB)", GB_BASE_CART_BANK0, GB_SIZE_CART_BANK0 * 2, 0x800000, mCORE_MEMORY_READ | mCORE_MEMORY_MAPPED, 511 },
73 { GB_REGION_VRAM, "vram", "VRAM", "Video RAM (8kiB)", GB_BASE_VRAM, GB_BASE_VRAM + GB_SIZE_VRAM, GB_SIZE_VRAM * 2, mCORE_MEMORY_RW | mCORE_MEMORY_MAPPED, 1 },
74 { GB_REGION_EXTERNAL_RAM, "sram", "SRAM", "External RAM (8kiB)", GB_BASE_EXTERNAL_RAM, GB_BASE_EXTERNAL_RAM + GB_SIZE_EXTERNAL_RAM, GB_SIZE_EXTERNAL_RAM * 4, mCORE_MEMORY_RW | mCORE_MEMORY_MAPPED, 3 },
75 { GB_REGION_WORKING_RAM_BANK0, "wram", "WRAM", "Working RAM (8kiB)", GB_BASE_WORKING_RAM_BANK0, GB_BASE_WORKING_RAM_BANK0 + GB_SIZE_WORKING_RAM_BANK0 * 2, GB_SIZE_WORKING_RAM_BANK0 * 8, mCORE_MEMORY_RW | mCORE_MEMORY_MAPPED, 7 },
76 { GB_BASE_OAM, "oam", "OAM", "OBJ Attribute Memory", GB_BASE_OAM, GB_BASE_OAM + GB_SIZE_OAM, GB_SIZE_OAM, mCORE_MEMORY_RW | mCORE_MEMORY_MAPPED },
77 { GB_BASE_IO, "io", "MMIO", "Memory-Mapped I/O", GB_BASE_IO, GB_BASE_IO + GB_SIZE_IO, GB_SIZE_IO, mCORE_MEMORY_RW | mCORE_MEMORY_MAPPED },
78 { GB_BASE_HRAM, "hram", "HRAM", "High RAM", GB_BASE_HRAM, GB_BASE_HRAM + GB_SIZE_HRAM, GB_SIZE_HRAM, mCORE_MEMORY_RW | mCORE_MEMORY_MAPPED },
79};
80
81struct mVideoLogContext;
82struct GBCore {
83 struct mCore d;
84 struct GBVideoSoftwareRenderer renderer;
85 struct GBVideoProxyRenderer proxyRenderer;
86 struct mVideoLogContext* logContext;
87 struct mCoreCallbacks logCallbacks;
88 uint8_t keys;
89 struct mCPUComponent* components[CPU_COMPONENT_MAX];
90 const struct Configuration* overrides;
91 struct mDebuggerPlatform* debuggerPlatform;
92 struct mCheatDevice* cheatDevice;
93};
94
95static bool _GBCoreInit(struct mCore* core) {
96 struct GBCore* gbcore = (struct GBCore*) core;
97
98 struct LR35902Core* cpu = anonymousMemoryMap(sizeof(struct LR35902Core));
99 struct GB* gb = anonymousMemoryMap(sizeof(struct GB));
100 if (!cpu || !gb) {
101 free(cpu);
102 free(gb);
103 return false;
104 }
105 core->cpu = cpu;
106 core->board = gb;
107 gbcore->overrides = NULL;
108 gbcore->debuggerPlatform = NULL;
109 gbcore->cheatDevice = NULL;
110
111 GBCreate(gb);
112 memset(gbcore->components, 0, sizeof(gbcore->components));
113 LR35902SetComponents(cpu, &gb->d, CPU_COMPONENT_MAX, gbcore->components);
114 LR35902Init(cpu);
115 mRTCGenericSourceInit(&core->rtc, core);
116 gb->memory.rtc = &core->rtc.d;
117
118 GBVideoSoftwareRendererCreate(&gbcore->renderer);
119 gbcore->renderer.outputBuffer = NULL;
120
121 gbcore->keys = 0;
122 gb->keySource = &gbcore->keys;
123
124#if !defined(MINIMAL_CORE) || MINIMAL_CORE < 2
125 mDirectorySetInit(&core->dirs);
126#endif
127
128#ifndef MINIMAL_CORE
129 core->inputInfo = &GBInputInfo;
130#endif
131
132 return true;
133}
134
135static void _GBCoreDeinit(struct mCore* core) {
136 LR35902Deinit(core->cpu);
137 GBDestroy(core->board);
138 mappedMemoryFree(core->cpu, sizeof(struct LR35902Core));
139 mappedMemoryFree(core->board, sizeof(struct GB));
140#if defined USE_DEBUGGERS && (!defined(MINIMAL_CORE) || MINIMAL_CORE < 2)
141 mDirectorySetDeinit(&core->dirs);
142 if (core->symbolTable) {
143 mDebuggerSymbolTableDestroy(core->symbolTable);
144 }
145#endif
146
147 struct GBCore* gbcore = (struct GBCore*) core;
148 free(gbcore->debuggerPlatform);
149 if (gbcore->cheatDevice) {
150 mCheatDeviceDestroy(gbcore->cheatDevice);
151 }
152 free(gbcore->cheatDevice);
153 mCoreConfigFreeOpts(&core->opts);
154 free(core);
155}
156
157static enum mPlatform _GBCorePlatform(const struct mCore* core) {
158 UNUSED(core);
159 return PLATFORM_GB;
160}
161
162static void _GBCoreSetSync(struct mCore* core, struct mCoreSync* sync) {
163 struct GB* gb = core->board;
164 gb->sync = sync;
165}
166
167static void _GBCoreLoadConfig(struct mCore* core, const struct mCoreConfig* config) {
168 UNUSED(config);
169
170 struct GB* gb = core->board;
171 if (core->opts.mute) {
172 gb->audio.masterVolume = 0;
173 } else {
174 gb->audio.masterVolume = core->opts.volume;
175 }
176 gb->video.frameskip = core->opts.frameskip;
177
178 int color;
179 if (mCoreConfigGetIntValue(config, "gb.pal[0]", &color)) {
180 GBVideoSetPalette(&gb->video, 0, color);
181 }
182 if (mCoreConfigGetIntValue(config, "gb.pal[1]", &color)) {
183 GBVideoSetPalette(&gb->video, 1, color);
184 }
185 if (mCoreConfigGetIntValue(config, "gb.pal[2]", &color)) {
186 GBVideoSetPalette(&gb->video, 2, color);
187 }
188 if (mCoreConfigGetIntValue(config, "gb.pal[3]", &color)) {
189 GBVideoSetPalette(&gb->video, 3, color);
190 }
191 if (mCoreConfigGetIntValue(config, "gb.pal[4]", &color)) {
192 GBVideoSetPalette(&gb->video, 4, color);
193 }
194 if (mCoreConfigGetIntValue(config, "gb.pal[5]", &color)) {
195 GBVideoSetPalette(&gb->video, 5, color);
196 }
197 if (mCoreConfigGetIntValue(config, "gb.pal[6]", &color)) {
198 GBVideoSetPalette(&gb->video, 6, color);
199 }
200 if (mCoreConfigGetIntValue(config, "gb.pal[7]", &color)) {
201 GBVideoSetPalette(&gb->video, 7, color);
202 }
203 if (mCoreConfigGetIntValue(config, "gb.pal[8]", &color)) {
204 GBVideoSetPalette(&gb->video, 8, color);
205 }
206 if (mCoreConfigGetIntValue(config, "gb.pal[9]", &color)) {
207 GBVideoSetPalette(&gb->video, 9, color);
208 }
209 if (mCoreConfigGetIntValue(config, "gb.pal[10]", &color)) {
210 GBVideoSetPalette(&gb->video, 10, color);
211 }
212 if (mCoreConfigGetIntValue(config, "gb.pal[11]", &color)) {
213 GBVideoSetPalette(&gb->video, 11, color);
214 }
215
216 mCoreConfigCopyValue(&core->config, config, "gb.bios");
217 mCoreConfigCopyValue(&core->config, config, "sgb.bios");
218 mCoreConfigCopyValue(&core->config, config, "gbc.bios");
219 mCoreConfigCopyValue(&core->config, config, "gb.model");
220 mCoreConfigCopyValue(&core->config, config, "sgb.model");
221 mCoreConfigCopyValue(&core->config, config, "cgb.model");
222 mCoreConfigCopyValue(&core->config, config, "sgb.borders");
223
224#if !defined(MINIMAL_CORE) || MINIMAL_CORE < 2
225 struct GBCore* gbcore = (struct GBCore*) core;
226 gbcore->overrides = mCoreConfigGetOverridesConst(config);
227#endif
228}
229
230static void _GBCoreDesiredVideoDimensions(struct mCore* core, unsigned* width, unsigned* height) {
231 struct GB* gb = core->board;
232 if (gb && (gb->model != GB_MODEL_SGB || !gb->video.sgbBorders)) {
233 *width = GB_VIDEO_HORIZONTAL_PIXELS;
234 *height = GB_VIDEO_VERTICAL_PIXELS;
235 } else {
236 *width = 256;
237 *height = 224;
238 }
239}
240
241static void _GBCoreSetVideoBuffer(struct mCore* core, color_t* buffer, size_t stride) {
242 struct GBCore* gbcore = (struct GBCore*) core;
243 gbcore->renderer.outputBuffer = buffer;
244 gbcore->renderer.outputBufferStride = stride;
245}
246
247static void _GBCoreGetPixels(struct mCore* core, const void** buffer, size_t* stride) {
248 struct GBCore* gbcore = (struct GBCore*) core;
249 gbcore->renderer.d.getPixels(&gbcore->renderer.d, stride, buffer);
250}
251
252static void _GBCorePutPixels(struct mCore* core, const void* buffer, size_t stride) {
253 struct GBCore* gbcore = (struct GBCore*) core;
254 gbcore->renderer.d.putPixels(&gbcore->renderer.d, stride, buffer);
255}
256
257static struct blip_t* _GBCoreGetAudioChannel(struct mCore* core, int ch) {
258 struct GB* gb = core->board;
259 switch (ch) {
260 case 0:
261 return gb->audio.left;
262 case 1:
263 return gb->audio.right;
264 default:
265 return NULL;
266 }
267}
268
269static void _GBCoreSetAudioBufferSize(struct mCore* core, size_t samples) {
270 struct GB* gb = core->board;
271 GBAudioResizeBuffer(&gb->audio, samples);
272}
273
274static size_t _GBCoreGetAudioBufferSize(struct mCore* core) {
275 struct GB* gb = core->board;
276 return gb->audio.samples;
277}
278
279static void _GBCoreAddCoreCallbacks(struct mCore* core, struct mCoreCallbacks* coreCallbacks) {
280 struct GB* gb = core->board;
281 *mCoreCallbacksListAppend(&gb->coreCallbacks) = *coreCallbacks;
282}
283
284static void _GBCoreClearCoreCallbacks(struct mCore* core) {
285 struct GB* gb = core->board;
286 mCoreCallbacksListClear(&gb->coreCallbacks);
287}
288
289static void _GBCoreSetAVStream(struct mCore* core, struct mAVStream* stream) {
290 struct GB* gb = core->board;
291 gb->stream = stream;
292 if (stream && stream->videoDimensionsChanged) {
293 unsigned width, height;
294 core->desiredVideoDimensions(core, &width, &height);
295 stream->videoDimensionsChanged(stream, width, height);
296 }
297 if (stream && stream->videoFrameRateChanged) {
298 stream->videoFrameRateChanged(stream, core->frameCycles(core), core->frequency(core));
299 }
300}
301
302static bool _GBCoreLoadROM(struct mCore* core, struct VFile* vf) {
303 return GBLoadROM(core->board, vf);
304}
305
306static bool _GBCoreLoadBIOS(struct mCore* core, struct VFile* vf, int type) {
307 UNUSED(type);
308 GBLoadBIOS(core->board, vf);
309 return true;
310}
311
312static bool _GBCoreLoadSave(struct mCore* core, struct VFile* vf) {
313 return GBLoadSave(core->board, vf);
314}
315
316static bool _GBCoreLoadTemporarySave(struct mCore* core, struct VFile* vf) {
317 struct GB* gb = core->board;
318 GBSavedataMask(gb, vf, false);
319 return true; // TODO: Return a real value
320}
321
322static bool _GBCoreLoadPatch(struct mCore* core, struct VFile* vf) {
323 if (!vf) {
324 return false;
325 }
326 struct Patch patch;
327 if (!loadPatch(vf, &patch)) {
328 return false;
329 }
330 GBApplyPatch(core->board, &patch);
331 return true;
332}
333
334static void _GBCoreUnloadROM(struct mCore* core) {
335 struct GBCore* gbcore = (struct GBCore*) core;
336 struct LR35902Core* cpu = core->cpu;
337 if (gbcore->cheatDevice) {
338 LR35902HotplugDetach(cpu, CPU_COMPONENT_CHEAT_DEVICE);
339 cpu->components[CPU_COMPONENT_CHEAT_DEVICE] = NULL;
340 mCheatDeviceDestroy(gbcore->cheatDevice);
341 gbcore->cheatDevice = NULL;
342 }
343 return GBUnloadROM(core->board);
344}
345
346static void _GBCoreChecksum(const struct mCore* core, void* data, enum mCoreChecksumType type) {
347 struct GB* gb = (struct GB*) core->board;
348 switch (type) {
349 case CHECKSUM_CRC32:
350 memcpy(data, &gb->romCrc32, sizeof(gb->romCrc32));
351 break;
352 }
353 return;
354}
355
356static void _GBCoreReset(struct mCore* core) {
357 struct GBCore* gbcore = (struct GBCore*) core;
358 struct GB* gb = (struct GB*) core->board;
359 if (gbcore->renderer.outputBuffer) {
360 GBVideoAssociateRenderer(&gb->video, &gbcore->renderer.d);
361 }
362
363 if (gb->memory.rom) {
364 struct GBCartridgeOverride override;
365 const struct GBCartridge* cart = (const struct GBCartridge*) &gb->memory.rom[0x100];
366 override.headerCrc32 = doCrc32(cart, sizeof(*cart));
367 if (GBOverrideFind(gbcore->overrides, &override)) {
368 GBOverrideApply(gb, &override);
369 }
370 }
371
372 const char* modelGB = mCoreConfigGetValue(&core->config, "gb.model");
373 const char* modelCGB = mCoreConfigGetValue(&core->config, "cgb.model");
374 const char* modelSGB = mCoreConfigGetValue(&core->config, "sgb.model");
375 if (modelGB || modelCGB || modelSGB) {
376 GBDetectModel(gb);
377 if (gb->model == GB_MODEL_DMG && modelGB) {
378 gb->model = GBNameToModel(modelGB);
379 } else if (gb->model == GB_MODEL_CGB && modelCGB) {
380 gb->model = GBNameToModel(modelCGB);
381 } else if (gb->model == GB_MODEL_SGB && modelSGB) {
382 gb->model = GBNameToModel(modelSGB);
383 }
384 }
385
386 int fakeBool;
387 if (mCoreConfigGetIntValue(&core->config, "sgb.borders", &fakeBool)) {
388 gb->video.sgbBorders = fakeBool;
389 }
390
391#if !defined(MINIMAL_CORE) || MINIMAL_CORE < 2
392 if (!gb->biosVf && core->opts.useBios) {
393 struct VFile* bios = NULL;
394 bool found = false;
395 if (core->opts.bios) {
396 bios = VFileOpen(core->opts.bios, O_RDONLY);
397 if (bios && GBIsBIOS(bios)) {
398 found = true;
399 } else if (bios) {
400 bios->close(bios);
401 bios = NULL;
402 }
403 }
404 if (!found) {
405 GBDetectModel(gb);
406 const char* configPath = NULL;
407
408 switch (gb->model) {
409 case GB_MODEL_DMG:
410 case GB_MODEL_MGB: // TODO
411 configPath = mCoreConfigGetValue(&core->config, "gb.bios");
412 break;
413 case GB_MODEL_SGB:
414 case GB_MODEL_SGB2: // TODO
415 configPath = mCoreConfigGetValue(&core->config, "sgb.bios");
416 break;
417 case GB_MODEL_CGB:
418 case GB_MODEL_AGB:
419 configPath = mCoreConfigGetValue(&core->config, "gbc.bios");
420 break;
421 default:
422 break;
423 };
424 if (configPath) {
425 bios = VFileOpen(configPath, O_RDONLY);
426 }
427 if (bios && GBIsBIOS(bios)) {
428 found = true;
429 } else if (bios) {
430 bios->close(bios);
431 bios = NULL;
432 }
433 }
434 if (!found) {
435 char path[PATH_MAX];
436 mCoreConfigDirectory(path, PATH_MAX);
437 switch (gb->model) {
438 case GB_MODEL_DMG:
439 case GB_MODEL_MGB: // TODO
440 strncat(path, PATH_SEP "gb_bios.bin", PATH_MAX - strlen(path));
441 break;
442 case GB_MODEL_SGB:
443 case GB_MODEL_SGB2: // TODO
444 strncat(path, PATH_SEP "sgb_bios.bin", PATH_MAX - strlen(path));
445 break;
446 case GB_MODEL_CGB:
447 case GB_MODEL_AGB:
448 strncat(path, PATH_SEP "gbc_bios.bin", PATH_MAX - strlen(path));
449 break;
450 default:
451 break;
452 };
453 bios = VFileOpen(path, O_RDONLY);
454 if (bios && GBIsBIOS(bios)) {
455 found = true;
456 } else if (bios) {
457 bios->close(bios);
458 bios = NULL;
459 }
460 }
461 if (bios) {
462 GBLoadBIOS(gb, bios);
463 }
464 }
465#endif
466
467 LR35902Reset(core->cpu);
468
469 if (core->opts.skipBios) {
470 GBSkipBIOS(core->board);
471 }
472}
473
474static void _GBCoreRunFrame(struct mCore* core) {
475 struct GB* gb = core->board;
476 int32_t frameCounter = gb->video.frameCounter;
477 while (gb->video.frameCounter == frameCounter) {
478 LR35902Run(core->cpu);
479 }
480}
481
482static void _GBCoreRunLoop(struct mCore* core) {
483 LR35902Run(core->cpu);
484}
485
486static void _GBCoreStep(struct mCore* core) {
487 struct LR35902Core* cpu = core->cpu;
488 do {
489 LR35902Tick(cpu);
490 } while (cpu->executionState != LR35902_CORE_FETCH);
491}
492
493static size_t _GBCoreStateSize(struct mCore* core) {
494 UNUSED(core);
495 return sizeof(struct GBSerializedState);
496}
497
498static bool _GBCoreLoadState(struct mCore* core, const void* state) {
499 return GBDeserialize(core->board, state);
500}
501
502static bool _GBCoreSaveState(struct mCore* core, void* state) {
503 struct LR35902Core* cpu = core->cpu;
504 while (cpu->executionState != LR35902_CORE_FETCH) {
505 LR35902Tick(cpu);
506 }
507 GBSerialize(core->board, state);
508 return true;
509}
510
511static void _GBCoreSetKeys(struct mCore* core, uint32_t keys) {
512 struct GBCore* gbcore = (struct GBCore*) core;
513 gbcore->keys = keys;
514 GBTestKeypadIRQ(core->board);
515}
516
517static void _GBCoreAddKeys(struct mCore* core, uint32_t keys) {
518 struct GBCore* gbcore = (struct GBCore*) core;
519 gbcore->keys |= keys;
520 GBTestKeypadIRQ(core->board);
521}
522
523static void _GBCoreClearKeys(struct mCore* core, uint32_t keys) {
524 struct GBCore* gbcore = (struct GBCore*) core;
525 gbcore->keys &= ~keys;
526}
527
528static void _GBCoreSetCursorLocation(struct mCore* core, int x, int y) {
529 UNUSED(core);
530 UNUSED(x);
531 UNUSED(y);
532}
533
534static void _GBCoreSetCursorDown(struct mCore* core, bool down) {
535 UNUSED(core);
536 UNUSED(down);
537}
538
539static int32_t _GBCoreFrameCounter(const struct mCore* core) {
540 const struct GB* gb = core->board;
541 return gb->video.frameCounter;
542}
543
544static int32_t _GBCoreFrameCycles(const struct mCore* core) {
545 UNUSED(core);
546 return GB_VIDEO_TOTAL_LENGTH;
547}
548
549static int32_t _GBCoreFrequency(const struct mCore* core) {
550 UNUSED(core);
551 // TODO: GB differences
552 return DMG_LR35902_FREQUENCY;
553}
554
555static void _GBCoreGetGameTitle(const struct mCore* core, char* title) {
556 GBGetGameTitle(core->board, title);
557}
558
559static void _GBCoreGetGameCode(const struct mCore* core, char* title) {
560 GBGetGameCode(core->board, title);
561}
562
563static void _GBCoreSetPeripheral(struct mCore* core, int type, void* periph) {
564 struct GB* gb = core->board;
565 switch (type) {
566 case mPERIPH_ROTATION:
567 gb->memory.rotation = periph;
568 break;
569 case mPERIPH_RUMBLE:
570 gb->memory.rumble = periph;
571 break;
572 case mPERIPH_IMAGE_SOURCE:
573 gb->memory.cam = periph;
574 break;
575 default:
576 return;
577 }
578}
579
580static uint32_t _GBCoreBusRead8(struct mCore* core, uint32_t address) {
581 struct LR35902Core* cpu = core->cpu;
582 return cpu->memory.load8(cpu, address);
583}
584
585static uint32_t _GBCoreBusRead16(struct mCore* core, uint32_t address) {
586 struct LR35902Core* cpu = core->cpu;
587 return cpu->memory.load8(cpu, address) | (cpu->memory.load8(cpu, address + 1) << 8);
588}
589
590static uint32_t _GBCoreBusRead32(struct mCore* core, uint32_t address) {
591 struct LR35902Core* cpu = core->cpu;
592 return cpu->memory.load8(cpu, address) | (cpu->memory.load8(cpu, address + 1) << 8) |
593 (cpu->memory.load8(cpu, address + 2) << 16) | (cpu->memory.load8(cpu, address + 3) << 24);
594}
595
596static void _GBCoreBusWrite8(struct mCore* core, uint32_t address, uint8_t value) {
597 struct LR35902Core* cpu = core->cpu;
598 cpu->memory.store8(cpu, address, value);
599}
600
601static void _GBCoreBusWrite16(struct mCore* core, uint32_t address, uint16_t value) {
602 struct LR35902Core* cpu = core->cpu;
603 cpu->memory.store8(cpu, address, value);
604 cpu->memory.store8(cpu, address + 1, value >> 8);
605}
606
607static void _GBCoreBusWrite32(struct mCore* core, uint32_t address, uint32_t value) {
608 struct LR35902Core* cpu = core->cpu;
609 cpu->memory.store8(cpu, address, value);
610 cpu->memory.store8(cpu, address + 1, value >> 8);
611 cpu->memory.store8(cpu, address + 2, value >> 16);
612 cpu->memory.store8(cpu, address + 3, value >> 24);
613}
614
615static uint32_t _GBCoreRawRead8(struct mCore* core, uint32_t address, int segment) {
616 struct LR35902Core* cpu = core->cpu;
617 return GBView8(cpu, address, segment);
618}
619
620static uint32_t _GBCoreRawRead16(struct mCore* core, uint32_t address, int segment) {
621 struct LR35902Core* cpu = core->cpu;
622 return GBView8(cpu, address, segment) | (GBView8(cpu, address + 1, segment) << 8);
623}
624
625static uint32_t _GBCoreRawRead32(struct mCore* core, uint32_t address, int segment) {
626 struct LR35902Core* cpu = core->cpu;
627 return GBView8(cpu, address, segment) | (GBView8(cpu, address + 1, segment) << 8) |
628 (GBView8(cpu, address + 2, segment) << 16) | (GBView8(cpu, address + 3, segment) << 24);
629}
630
631static void _GBCoreRawWrite8(struct mCore* core, uint32_t address, int segment, uint8_t value) {
632 struct LR35902Core* cpu = core->cpu;
633 GBPatch8(cpu, address, value, NULL, segment);
634}
635
636static void _GBCoreRawWrite16(struct mCore* core, uint32_t address, int segment, uint16_t value) {
637 struct LR35902Core* cpu = core->cpu;
638 GBPatch8(cpu, address, value, NULL, segment);
639 GBPatch8(cpu, address + 1, value >> 8, NULL, segment);
640}
641
642static void _GBCoreRawWrite32(struct mCore* core, uint32_t address, int segment, uint32_t value) {
643 struct LR35902Core* cpu = core->cpu;
644 GBPatch8(cpu, address, value, NULL, segment);
645 GBPatch8(cpu, address + 1, value >> 8, NULL, segment);
646 GBPatch8(cpu, address + 2, value >> 16, NULL, segment);
647 GBPatch8(cpu, address + 3, value >> 24, NULL, segment);
648}
649
650size_t _GBListMemoryBlocks(const struct mCore* core, const struct mCoreMemoryBlock** blocks) {
651 const struct GB* gb = core->board;
652 switch (gb->model) {
653 case GB_MODEL_DMG:
654 case GB_MODEL_MGB:
655 case GB_MODEL_SGB:
656 case GB_MODEL_SGB2:
657 default:
658 *blocks = _GBMemoryBlocks;
659 return sizeof(_GBMemoryBlocks) / sizeof(*_GBMemoryBlocks);
660 case GB_MODEL_CGB:
661 case GB_MODEL_AGB:
662 *blocks = _GBCMemoryBlocks;
663 return sizeof(_GBCMemoryBlocks) / sizeof(*_GBCMemoryBlocks);
664 }
665}
666
667void* _GBGetMemoryBlock(struct mCore* core, size_t id, size_t* sizeOut) {
668 struct GB* gb = core->board;
669 bool isCgb = gb->model >= GB_MODEL_CGB;
670 switch (id) {
671 default:
672 return NULL;
673 case GB_REGION_CART_BANK0:
674 *sizeOut = gb->memory.romSize;
675 return gb->memory.rom;
676 case GB_REGION_VRAM:
677 *sizeOut = GB_SIZE_WORKING_RAM_BANK0 * (isCgb ? 1 : 2);
678 return gb->video.vram;
679 case GB_REGION_EXTERNAL_RAM:
680 *sizeOut = gb->sramSize;
681 return gb->memory.sram;
682 case GB_REGION_WORKING_RAM_BANK0:
683 *sizeOut = GB_SIZE_VRAM * (isCgb ? 8 : 2);
684 return gb->memory.wram;
685 case GB_BASE_OAM:
686 *sizeOut = GB_SIZE_OAM;
687 return gb->video.oam.raw;
688 case GB_BASE_HRAM:
689 *sizeOut = GB_SIZE_HRAM;
690 return gb->memory.hram;
691 }
692}
693
694#ifdef USE_DEBUGGERS
695static bool _GBCoreSupportsDebuggerType(struct mCore* core, enum mDebuggerType type) {
696 UNUSED(core);
697 switch (type) {
698 case DEBUGGER_CLI:
699 return true;
700 default:
701 return false;
702 }
703}
704
705static struct mDebuggerPlatform* _GBCoreDebuggerPlatform(struct mCore* core) {
706 struct GBCore* gbcore = (struct GBCore*) core;
707 struct GB* gb = core->board;
708 if (!gbcore->debuggerPlatform) {
709 struct LR35902Debugger* platform = (struct LR35902Debugger*) LR35902DebuggerPlatformCreate();
710 if (gb->model >= GB_MODEL_CGB) {
711 platform->segments = _GBCSegments;
712 } else {
713 platform->segments = _GBSegments;
714 }
715 gbcore->debuggerPlatform = &platform->d;
716 }
717 return gbcore->debuggerPlatform;
718}
719
720static struct CLIDebuggerSystem* _GBCoreCliDebuggerSystem(struct mCore* core) {
721 return GBCLIDebuggerCreate(core);
722}
723
724static void _GBCoreAttachDebugger(struct mCore* core, struct mDebugger* debugger) {
725 struct LR35902Core* cpu = core->cpu;
726 if (core->debugger) {
727 LR35902HotplugDetach(cpu, CPU_COMPONENT_DEBUGGER);
728 }
729 cpu->components[CPU_COMPONENT_DEBUGGER] = &debugger->d;
730 LR35902HotplugAttach(cpu, CPU_COMPONENT_DEBUGGER);
731 core->debugger = debugger;
732}
733
734static void _GBCoreDetachDebugger(struct mCore* core) {
735 struct LR35902Core* cpu = core->cpu;
736 if (core->debugger) {
737 LR35902HotplugDetach(cpu, CPU_COMPONENT_DEBUGGER);
738 }
739 cpu->components[CPU_COMPONENT_DEBUGGER] = NULL;
740 core->debugger = NULL;
741}
742
743static void _GBCoreLoadSymbols(struct mCore* core, struct VFile* vf) {
744 core->symbolTable = mDebuggerSymbolTableCreate();
745#if !defined(MINIMAL_CORE) || MINIMAL_CORE < 2
746 if (!vf) {
747 vf = mDirectorySetOpenSuffix(&core->dirs, core->dirs.base, ".sym", O_RDONLY);
748 }
749#endif
750 if (!vf) {
751 return;
752 }
753 GBLoadSymbols(core->symbolTable, vf);
754}
755
756static bool _GBCoreLookupIdentifier(struct mCore* core, const char* name, int32_t* value, int* segment) {
757 UNUSED(core);
758 *segment = -1;
759 int i;
760 for (i = 0; i < REG_MAX; ++i) {
761 const char* reg = GBIORegisterNames[i];
762 if (reg && strcasecmp(reg, name) == 0) {
763 *value = GB_BASE_IO | i;
764 return true;
765 }
766 }
767 return false;
768}
769#endif
770
771static struct mCheatDevice* _GBCoreCheatDevice(struct mCore* core) {
772 struct GBCore* gbcore = (struct GBCore*) core;
773 if (!gbcore->cheatDevice) {
774 gbcore->cheatDevice = GBCheatDeviceCreate();
775 ((struct LR35902Core*) core->cpu)->components[CPU_COMPONENT_CHEAT_DEVICE] = &gbcore->cheatDevice->d;
776 LR35902HotplugAttach(core->cpu, CPU_COMPONENT_CHEAT_DEVICE);
777 gbcore->cheatDevice->p = core;
778 }
779 return gbcore->cheatDevice;
780}
781
782static size_t _GBCoreSavedataClone(struct mCore* core, void** sram) {
783 struct GB* gb = core->board;
784 struct VFile* vf = gb->sramVf;
785 if (vf) {
786 *sram = malloc(vf->size(vf));
787 vf->seek(vf, 0, SEEK_SET);
788 return vf->read(vf, *sram, vf->size(vf));
789 }
790 *sram = malloc(gb->sramSize);
791 memcpy(*sram, gb->memory.sram, gb->sramSize);
792 return gb->sramSize;
793}
794
795static bool _GBCoreSavedataRestore(struct mCore* core, const void* sram, size_t size, bool writeback) {
796 struct GB* gb = core->board;
797 if (!writeback) {
798 struct VFile* vf = VFileMemChunk(sram, size);
799 GBSavedataMask(gb, vf, true);
800 return true;
801 }
802 struct VFile* vf = gb->sramVf;
803 if (vf) {
804 vf->seek(vf, 0, SEEK_SET);
805 return vf->write(vf, sram, size) > 0;
806 }
807 if (size > 0x20000) {
808 size = 0x20000;
809 }
810 GBResizeSram(gb, size);
811 memcpy(gb->memory.sram, sram, size);
812 return true;
813}
814
815static size_t _GBCoreListVideoLayers(const struct mCore* core, const struct mCoreChannelInfo** info) {
816 UNUSED(core);
817 if (info) {
818 *info = _GBVideoLayers;
819 }
820 return sizeof(_GBVideoLayers) / sizeof(*_GBVideoLayers);
821}
822
823static size_t _GBCoreListAudioChannels(const struct mCore* core, const struct mCoreChannelInfo** info) {
824 UNUSED(core);
825 if (info) {
826 *info = _GBAudioChannels;
827 }
828 return sizeof(_GBAudioChannels) / sizeof(*_GBAudioChannels);
829}
830
831static void _GBCoreEnableVideoLayer(struct mCore* core, size_t id, bool enable) {
832 struct GB* gb = core->board;
833 switch (id) {
834 case 0:
835 gb->video.renderer->disableBG = !enable;
836 break;
837 case 1:
838 gb->video.renderer->disableOBJ = !enable;
839 break;
840 case 2:
841 gb->video.renderer->disableWIN = !enable;
842 break;
843 default:
844 break;
845 }
846}
847
848static void _GBCoreEnableAudioChannel(struct mCore* core, size_t id, bool enable) {
849 struct GB* gb = core->board;
850 switch (id) {
851 case 0:
852 case 1:
853 case 2:
854 case 3:
855 gb->audio.forceDisableCh[id] = !enable;
856 break;
857 default:
858 break;
859 }
860}
861
862static void _GBCoreAdjustVideoLayer(struct mCore* core, size_t id, int32_t x, int32_t y) {
863 struct GBCore* gbcore = (struct GBCore*) core;
864 switch (id) {
865 case 0:
866 gbcore->renderer.offsetScx = x;
867 gbcore->renderer.offsetScy = y;
868 break;
869 case 1:
870 gbcore->renderer.offsetWx = x;
871 gbcore->renderer.offsetWy = y;
872 break;
873 case 2:
874 gbcore->renderer.objOffsetX = x;
875 gbcore->renderer.objOffsetY = y;
876 break;
877 default:
878 return;
879 }
880}
881
882#ifndef MINIMAL_CORE
883static void _GBCoreStartVideoLog(struct mCore* core, struct mVideoLogContext* context) {
884 struct GBCore* gbcore = (struct GBCore*) core;
885 struct GB* gb = core->board;
886 gbcore->logContext = context;
887
888 int channelId = mVideoLoggerAddChannel(context);
889 gbcore->proxyRenderer.logger = malloc(sizeof(struct mVideoLogger));
890 mVideoLoggerRendererCreate(gbcore->proxyRenderer.logger, false);
891 mVideoLoggerAttachChannel(gbcore->proxyRenderer.logger, context, channelId);
892 gbcore->proxyRenderer.logger->block = false;
893
894 GBVideoProxyRendererCreate(&gbcore->proxyRenderer, &gbcore->renderer.d);
895 GBVideoProxyRendererShim(&gb->video, &gbcore->proxyRenderer);
896}
897
898static void _GBCoreEndVideoLog(struct mCore* core) {
899 struct GBCore* gbcore = (struct GBCore*) core;
900 struct GB* gb = core->board;
901 GBVideoProxyRendererUnshim(&gb->video, &gbcore->proxyRenderer);
902 free(gbcore->proxyRenderer.logger);
903 gbcore->proxyRenderer.logger = NULL;
904}
905#endif
906
907struct mCore* GBCoreCreate(void) {
908 struct GBCore* gbcore = malloc(sizeof(*gbcore));
909 struct mCore* core = &gbcore->d;
910 memset(&core->opts, 0, sizeof(core->opts));
911 core->cpu = NULL;
912 core->board = NULL;
913 core->debugger = NULL;
914 core->symbolTable = NULL;
915 core->init = _GBCoreInit;
916 core->deinit = _GBCoreDeinit;
917 core->platform = _GBCorePlatform;
918 core->setSync = _GBCoreSetSync;
919 core->loadConfig = _GBCoreLoadConfig;
920 core->desiredVideoDimensions = _GBCoreDesiredVideoDimensions;
921 core->setVideoBuffer = _GBCoreSetVideoBuffer;
922 core->getPixels = _GBCoreGetPixels;
923 core->putPixels = _GBCorePutPixels;
924 core->getAudioChannel = _GBCoreGetAudioChannel;
925 core->setAudioBufferSize = _GBCoreSetAudioBufferSize;
926 core->getAudioBufferSize = _GBCoreGetAudioBufferSize;
927 core->setAVStream = _GBCoreSetAVStream;
928 core->addCoreCallbacks = _GBCoreAddCoreCallbacks;
929 core->clearCoreCallbacks = _GBCoreClearCoreCallbacks;
930 core->isROM = GBIsROM;
931 core->loadROM = _GBCoreLoadROM;
932 core->loadBIOS = _GBCoreLoadBIOS;
933 core->loadSave = _GBCoreLoadSave;
934 core->loadTemporarySave = _GBCoreLoadTemporarySave;
935 core->loadPatch = _GBCoreLoadPatch;
936 core->unloadROM = _GBCoreUnloadROM;
937 core->checksum = _GBCoreChecksum;
938 core->reset = _GBCoreReset;
939 core->runFrame = _GBCoreRunFrame;
940 core->runLoop = _GBCoreRunLoop;
941 core->step = _GBCoreStep;
942 core->stateSize = _GBCoreStateSize;
943 core->loadState = _GBCoreLoadState;
944 core->saveState = _GBCoreSaveState;
945 core->setKeys = _GBCoreSetKeys;
946 core->addKeys = _GBCoreAddKeys;
947 core->clearKeys = _GBCoreClearKeys;
948 core->setCursorLocation = _GBCoreSetCursorLocation;
949 core->setCursorDown = _GBCoreSetCursorDown;
950 core->frameCounter = _GBCoreFrameCounter;
951 core->frameCycles = _GBCoreFrameCycles;
952 core->frequency = _GBCoreFrequency;
953 core->getGameTitle = _GBCoreGetGameTitle;
954 core->getGameCode = _GBCoreGetGameCode;
955 core->setPeripheral = _GBCoreSetPeripheral;
956 core->busRead8 = _GBCoreBusRead8;
957 core->busRead16 = _GBCoreBusRead16;
958 core->busRead32 = _GBCoreBusRead32;
959 core->busWrite8 = _GBCoreBusWrite8;
960 core->busWrite16 = _GBCoreBusWrite16;
961 core->busWrite32 = _GBCoreBusWrite32;
962 core->rawRead8 = _GBCoreRawRead8;
963 core->rawRead16 = _GBCoreRawRead16;
964 core->rawRead32 = _GBCoreRawRead32;
965 core->rawWrite8 = _GBCoreRawWrite8;
966 core->rawWrite16 = _GBCoreRawWrite16;
967 core->rawWrite32 = _GBCoreRawWrite32;
968 core->listMemoryBlocks = _GBListMemoryBlocks;
969 core->getMemoryBlock = _GBGetMemoryBlock;
970#ifdef USE_DEBUGGERS
971 core->supportsDebuggerType = _GBCoreSupportsDebuggerType;
972 core->debuggerPlatform = _GBCoreDebuggerPlatform;
973 core->cliDebuggerSystem = _GBCoreCliDebuggerSystem;
974 core->attachDebugger = _GBCoreAttachDebugger;
975 core->detachDebugger = _GBCoreDetachDebugger;
976 core->loadSymbols = _GBCoreLoadSymbols;
977 core->lookupIdentifier = _GBCoreLookupIdentifier;
978#endif
979 core->cheatDevice = _GBCoreCheatDevice;
980 core->savedataClone = _GBCoreSavedataClone;
981 core->savedataRestore = _GBCoreSavedataRestore;
982 core->listVideoLayers = _GBCoreListVideoLayers;
983 core->listAudioChannels = _GBCoreListAudioChannels;
984 core->enableVideoLayer = _GBCoreEnableVideoLayer;
985 core->enableAudioChannel = _GBCoreEnableAudioChannel;
986 core->adjustVideoLayer = _GBCoreAdjustVideoLayer;
987#ifndef MINIMAL_CORE
988 core->startVideoLog = _GBCoreStartVideoLog;
989 core->endVideoLog = _GBCoreEndVideoLog;
990#endif
991 return core;
992}
993
994#ifndef MINIMAL_CORE
995static void _GBVLPStartFrameCallback(void *context) {
996 struct mCore* core = context;
997 struct GBCore* gbcore = (struct GBCore*) core;
998 struct GB* gb = core->board;
999
1000 if (!mVideoLoggerRendererRun(gbcore->proxyRenderer.logger, true)) {
1001 GBVideoProxyRendererUnshim(&gb->video, &gbcore->proxyRenderer);
1002 mVideoLogContextRewind(gbcore->logContext, core);
1003 GBVideoProxyRendererShim(&gb->video, &gbcore->proxyRenderer);
1004 }
1005}
1006
1007static bool _GBVLPInit(struct mCore* core) {
1008 struct GBCore* gbcore = (struct GBCore*) core;
1009 if (!_GBCoreInit(core)) {
1010 return false;
1011 }
1012 gbcore->proxyRenderer.logger = malloc(sizeof(struct mVideoLogger));
1013 mVideoLoggerRendererCreate(gbcore->proxyRenderer.logger, true);
1014 GBVideoProxyRendererCreate(&gbcore->proxyRenderer, NULL);
1015 memset(&gbcore->logCallbacks, 0, sizeof(gbcore->logCallbacks));
1016 gbcore->logCallbacks.videoFrameStarted = _GBVLPStartFrameCallback;
1017 gbcore->logCallbacks.context = core;
1018 core->addCoreCallbacks(core, &gbcore->logCallbacks);
1019 return true;
1020}
1021
1022static void _GBVLPDeinit(struct mCore* core) {
1023 struct GBCore* gbcore = (struct GBCore*) core;
1024 if (gbcore->logContext) {
1025 mVideoLogContextDestroy(core, gbcore->logContext);
1026 }
1027 _GBCoreDeinit(core);
1028}
1029
1030static void _GBVLPReset(struct mCore* core) {
1031 struct GBCore* gbcore = (struct GBCore*) core;
1032 struct GB* gb = (struct GB*) core->board;
1033 if (gb->video.renderer == &gbcore->proxyRenderer.d) {
1034 GBVideoProxyRendererUnshim(&gb->video, &gbcore->proxyRenderer);
1035 } else if (gbcore->renderer.outputBuffer) {
1036 struct GBVideoRenderer* renderer = &gbcore->renderer.d;
1037 GBVideoAssociateRenderer(&gb->video, renderer);
1038 }
1039
1040 LR35902Reset(core->cpu);
1041 mVideoLogContextRewind(gbcore->logContext, core);
1042 GBVideoProxyRendererShim(&gb->video, &gbcore->proxyRenderer);
1043
1044 // Make sure CPU loop never spins
1045 GBHalt(gb->cpu);
1046 gb->memory.ie = 0;
1047 gb->memory.ime = false;
1048}
1049
1050static bool _GBVLPLoadROM(struct mCore* core, struct VFile* vf) {
1051 struct GBCore* gbcore = (struct GBCore*) core;
1052 gbcore->logContext = mVideoLogContextCreate(NULL);
1053 if (!mVideoLogContextLoad(gbcore->logContext, vf)) {
1054 mVideoLogContextDestroy(core, gbcore->logContext);
1055 gbcore->logContext = NULL;
1056 return false;
1057 }
1058 mVideoLoggerAttachChannel(gbcore->proxyRenderer.logger, gbcore->logContext, 0);
1059 return true;
1060}
1061
1062static bool _GBVLPLoadState(struct mCore* core, const void* buffer) {
1063 struct GB* gb = (struct GB*) core->board;
1064 const struct GBSerializedState* state = buffer;
1065
1066 gb->timing.root = NULL;
1067 gb->model = state->model;
1068
1069 gb->cpu->pc = GB_BASE_HRAM;
1070 gb->cpu->memory.setActiveRegion(gb->cpu, gb->cpu->pc);
1071
1072 GBVideoDeserialize(&gb->video, state);
1073 GBIODeserialize(gb, state);
1074 GBAudioReset(&gb->audio);
1075
1076 // Make sure CPU loop never spins
1077 GBHalt(gb->cpu);
1078 gb->memory.ie = 0;
1079 gb->memory.ime = false;
1080
1081 return true;
1082}
1083
1084static bool _returnTrue(struct VFile* vf) {
1085 UNUSED(vf);
1086 return true;
1087}
1088
1089struct mCore* GBVideoLogPlayerCreate(void) {
1090 struct mCore* core = GBCoreCreate();
1091 core->init = _GBVLPInit;
1092 core->deinit = _GBVLPDeinit;
1093 core->reset = _GBVLPReset;
1094 core->loadROM = _GBVLPLoadROM;
1095 core->loadState = _GBVLPLoadState;
1096 core->isROM = _returnTrue;
1097 return core;
1098}
1099#else
1100struct mCore* GBVideoLogPlayerCreate(void) {
1101 return false;
1102}
1103#endif