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/debugger.h>
12#include <mgba/internal/gb/debugger/symbols.h>
13#include <mgba/internal/gb/extra/cli.h>
14#include <mgba/internal/gb/io.h>
15#include <mgba/internal/gb/gb.h>
16#include <mgba/internal/gb/input.h>
17#include <mgba/internal/gb/mbc.h>
18#include <mgba/internal/gb/overrides.h>
19#include <mgba/internal/gb/renderers/software.h>
20#include <mgba/internal/gb/renderers/proxy.h>
21#include <mgba/internal/gb/serialize.h>
22#include <mgba/internal/lr35902/lr35902.h>
23#include <mgba/internal/lr35902/debugger/debugger.h>
24#include <mgba-util/crc32.h>
25#include <mgba-util/memory.h>
26#include <mgba-util/patch.h>
27#include <mgba-util/vfs.h>
28
29#ifndef MINIMAL_CORE
30#include <mgba/internal/gba/input.h>
31#endif
32
33static const struct mCoreChannelInfo _GBVideoLayers[] = {
34 { 0, "bg", "Background", NULL },
35 { 1, "bgwin", "Window", NULL },
36 { 2, "obj", "Objects", NULL },
37};
38
39static const struct mCoreChannelInfo _GBAudioChannels[] = {
40 { 0, "ch1", "Channel 1", "Square/Sweep" },
41 { 1, "ch2", "Channel 2", "Square" },
42 { 2, "ch3", "Channel 3", "PCM" },
43 { 3, "ch4", "Channel 4", "Noise" },
44};
45
46static const struct mCoreMemoryBlock _GBMemoryBlocks[] = {
47 { -1, "mem", "All", "All", 0, 0x10000, 0x10000, mCORE_MEMORY_VIRTUAL },
48 { 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 },
49 { 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 },
50 { 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 },
51 { 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 },
52 { 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 },
53 { 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 },
54 { 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 },
55};
56
57static const struct mCoreMemoryBlock _GBCMemoryBlocks[] = {
58 { -1, "mem", "All", "All", 0, 0x10000, 0x10000, mCORE_MEMORY_VIRTUAL },
59 { 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 },
60 { 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 },
61 { 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 },
62 { 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 },
63 { 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 },
64 { 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 },
65 { 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 },
66};
67
68struct mVideoLogContext;
69struct GBCore {
70 struct mCore d;
71 struct GBVideoSoftwareRenderer renderer;
72 struct GBVideoProxyRenderer proxyRenderer;
73 struct mVideoLogContext* logContext;
74 struct mCoreCallbacks logCallbacks;
75 uint8_t keys;
76 struct mCPUComponent* components[CPU_COMPONENT_MAX];
77 const struct Configuration* overrides;
78 struct mDebuggerPlatform* debuggerPlatform;
79 struct mCheatDevice* cheatDevice;
80};
81
82static bool _GBCoreInit(struct mCore* core) {
83 struct GBCore* gbcore = (struct GBCore*) core;
84
85 struct LR35902Core* cpu = anonymousMemoryMap(sizeof(struct LR35902Core));
86 struct GB* gb = anonymousMemoryMap(sizeof(struct GB));
87 if (!cpu || !gb) {
88 free(cpu);
89 free(gb);
90 return false;
91 }
92 core->cpu = cpu;
93 core->board = gb;
94 core->timing = &gb->timing;
95 gbcore->overrides = NULL;
96 gbcore->debuggerPlatform = NULL;
97 gbcore->cheatDevice = NULL;
98
99 GBCreate(gb);
100 memset(gbcore->components, 0, sizeof(gbcore->components));
101 LR35902SetComponents(cpu, &gb->d, CPU_COMPONENT_MAX, gbcore->components);
102 LR35902Init(cpu);
103 mRTCGenericSourceInit(&core->rtc, core);
104 gb->memory.rtc = &core->rtc.d;
105
106 GBVideoSoftwareRendererCreate(&gbcore->renderer);
107 gbcore->renderer.outputBuffer = NULL;
108
109 gbcore->keys = 0;
110 gb->keySource = &gbcore->keys;
111
112#if !defined(MINIMAL_CORE) || MINIMAL_CORE < 2
113 mDirectorySetInit(&core->dirs);
114#endif
115
116#ifndef MINIMAL_CORE
117 core->inputInfo = &GBInputInfo;
118#endif
119
120 return true;
121}
122
123static void _GBCoreDeinit(struct mCore* core) {
124 LR35902Deinit(core->cpu);
125 GBDestroy(core->board);
126 mappedMemoryFree(core->cpu, sizeof(struct LR35902Core));
127 mappedMemoryFree(core->board, sizeof(struct GB));
128#if defined USE_DEBUGGERS && (!defined(MINIMAL_CORE) || MINIMAL_CORE < 2)
129 mDirectorySetDeinit(&core->dirs);
130 if (core->symbolTable) {
131 mDebuggerSymbolTableDestroy(core->symbolTable);
132 }
133#endif
134
135 struct GBCore* gbcore = (struct GBCore*) core;
136 free(gbcore->debuggerPlatform);
137 if (gbcore->cheatDevice) {
138 mCheatDeviceDestroy(gbcore->cheatDevice);
139 }
140 free(gbcore->cheatDevice);
141 mCoreConfigFreeOpts(&core->opts);
142 free(core);
143}
144
145static enum mPlatform _GBCorePlatform(const struct mCore* core) {
146 UNUSED(core);
147 return PLATFORM_GB;
148}
149
150static bool _GBCoreSupportsFeature(const struct mCore* core, enum mCoreFeature feature) {
151 UNUSED(core);
152 switch (feature) {
153 default:
154 return false;
155 }
156}
157
158static void _GBCoreSetSync(struct mCore* core, struct mCoreSync* sync) {
159 struct GB* gb = core->board;
160 gb->sync = sync;
161}
162
163static void _GBCoreLoadConfig(struct mCore* core, const struct mCoreConfig* config) {
164 UNUSED(config);
165
166 struct GB* gb = core->board;
167 if (core->opts.mute) {
168 gb->audio.masterVolume = 0;
169 } else {
170 gb->audio.masterVolume = core->opts.volume;
171 }
172 gb->video.frameskip = core->opts.frameskip;
173
174 int color;
175 if (mCoreConfigGetIntValue(config, "gb.pal[0]", &color)) {
176 GBVideoSetPalette(&gb->video, 0, color);
177 }
178 if (mCoreConfigGetIntValue(config, "gb.pal[1]", &color)) {
179 GBVideoSetPalette(&gb->video, 1, color);
180 }
181 if (mCoreConfigGetIntValue(config, "gb.pal[2]", &color)) {
182 GBVideoSetPalette(&gb->video, 2, color);
183 }
184 if (mCoreConfigGetIntValue(config, "gb.pal[3]", &color)) {
185 GBVideoSetPalette(&gb->video, 3, color);
186 }
187 if (mCoreConfigGetIntValue(config, "gb.pal[4]", &color)) {
188 GBVideoSetPalette(&gb->video, 4, color);
189 }
190 if (mCoreConfigGetIntValue(config, "gb.pal[5]", &color)) {
191 GBVideoSetPalette(&gb->video, 5, color);
192 }
193 if (mCoreConfigGetIntValue(config, "gb.pal[6]", &color)) {
194 GBVideoSetPalette(&gb->video, 6, color);
195 }
196 if (mCoreConfigGetIntValue(config, "gb.pal[7]", &color)) {
197 GBVideoSetPalette(&gb->video, 7, color);
198 }
199 if (mCoreConfigGetIntValue(config, "gb.pal[8]", &color)) {
200 GBVideoSetPalette(&gb->video, 8, color);
201 }
202 if (mCoreConfigGetIntValue(config, "gb.pal[9]", &color)) {
203 GBVideoSetPalette(&gb->video, 9, color);
204 }
205 if (mCoreConfigGetIntValue(config, "gb.pal[10]", &color)) {
206 GBVideoSetPalette(&gb->video, 10, color);
207 }
208 if (mCoreConfigGetIntValue(config, "gb.pal[11]", &color)) {
209 GBVideoSetPalette(&gb->video, 11, color);
210 }
211
212 mCoreConfigCopyValue(&core->config, config, "gb.bios");
213 mCoreConfigCopyValue(&core->config, config, "sgb.bios");
214 mCoreConfigCopyValue(&core->config, config, "gbc.bios");
215 mCoreConfigCopyValue(&core->config, config, "gb.model");
216 mCoreConfigCopyValue(&core->config, config, "sgb.model");
217 mCoreConfigCopyValue(&core->config, config, "cgb.model");
218 mCoreConfigCopyValue(&core->config, config, "useCgbColors");
219 mCoreConfigCopyValue(&core->config, config, "allowOpposingDirections");
220
221 int fakeBool = 0;
222 mCoreConfigGetIntValue(config, "allowOpposingDirections", &fakeBool);
223 gb->allowOpposingDirections = fakeBool;
224
225 if (mCoreConfigGetIntValue(config, "sgb.borders", &fakeBool)) {
226 gb->video.sgbBorders = fakeBool;
227 gb->video.renderer->enableSGBBorder(gb->video.renderer, fakeBool);
228 }
229
230#if !defined(MINIMAL_CORE) || MINIMAL_CORE < 2
231 struct GBCore* gbcore = (struct GBCore*) core;
232 gbcore->overrides = mCoreConfigGetOverridesConst(config);
233#endif
234}
235
236static void _GBCoreDesiredVideoDimensions(struct mCore* core, unsigned* width, unsigned* height) {
237 struct GB* gb = core->board;
238 if (gb && (!(gb->model & GB_MODEL_SGB) || !gb->video.sgbBorders)) {
239 *width = GB_VIDEO_HORIZONTAL_PIXELS;
240 *height = GB_VIDEO_VERTICAL_PIXELS;
241 } else {
242 *width = 256;
243 *height = 224;
244 }
245}
246
247static void _GBCoreSetVideoBuffer(struct mCore* core, color_t* buffer, size_t stride) {
248 struct GBCore* gbcore = (struct GBCore*) core;
249 gbcore->renderer.outputBuffer = buffer;
250 gbcore->renderer.outputBufferStride = stride;
251}
252
253static void _GBCoreSetVideoGLTex(struct mCore* core, unsigned texid) {
254 UNUSED(core);
255 UNUSED(texid);
256}
257
258static void _GBCoreGetPixels(struct mCore* core, const void** buffer, size_t* stride) {
259 struct GBCore* gbcore = (struct GBCore*) core;
260 gbcore->renderer.d.getPixels(&gbcore->renderer.d, stride, buffer);
261}
262
263static void _GBCorePutPixels(struct mCore* core, const void* buffer, size_t stride) {
264 struct GBCore* gbcore = (struct GBCore*) core;
265 gbcore->renderer.d.putPixels(&gbcore->renderer.d, stride, buffer);
266}
267
268static struct blip_t* _GBCoreGetAudioChannel(struct mCore* core, int ch) {
269 struct GB* gb = core->board;
270 switch (ch) {
271 case 0:
272 return gb->audio.left;
273 case 1:
274 return gb->audio.right;
275 default:
276 return NULL;
277 }
278}
279
280static void _GBCoreSetAudioBufferSize(struct mCore* core, size_t samples) {
281 struct GB* gb = core->board;
282 GBAudioResizeBuffer(&gb->audio, samples);
283}
284
285static size_t _GBCoreGetAudioBufferSize(struct mCore* core) {
286 struct GB* gb = core->board;
287 return gb->audio.samples;
288}
289
290static void _GBCoreAddCoreCallbacks(struct mCore* core, struct mCoreCallbacks* coreCallbacks) {
291 struct GB* gb = core->board;
292 *mCoreCallbacksListAppend(&gb->coreCallbacks) = *coreCallbacks;
293}
294
295static void _GBCoreClearCoreCallbacks(struct mCore* core) {
296 struct GB* gb = core->board;
297 mCoreCallbacksListClear(&gb->coreCallbacks);
298}
299
300static void _GBCoreSetAVStream(struct mCore* core, struct mAVStream* stream) {
301 struct GB* gb = core->board;
302 gb->stream = stream;
303 if (stream && stream->videoDimensionsChanged) {
304 unsigned width, height;
305 core->desiredVideoDimensions(core, &width, &height);
306 stream->videoDimensionsChanged(stream, width, height);
307 }
308 if (stream && stream->videoFrameRateChanged) {
309 stream->videoFrameRateChanged(stream, core->frameCycles(core), core->frequency(core));
310 }
311}
312
313static bool _GBCoreLoadROM(struct mCore* core, struct VFile* vf) {
314 return GBLoadROM(core->board, vf);
315}
316
317static bool _GBCoreLoadBIOS(struct mCore* core, struct VFile* vf, int type) {
318 UNUSED(type);
319 GBLoadBIOS(core->board, vf);
320 return true;
321}
322
323static bool _GBCoreLoadSave(struct mCore* core, struct VFile* vf) {
324 return GBLoadSave(core->board, vf);
325}
326
327static bool _GBCoreLoadTemporarySave(struct mCore* core, struct VFile* vf) {
328 struct GB* gb = core->board;
329 GBSavedataMask(gb, vf, false);
330 return true; // TODO: Return a real value
331}
332
333static bool _GBCoreLoadPatch(struct mCore* core, struct VFile* vf) {
334 if (!vf) {
335 return false;
336 }
337 struct Patch patch;
338 if (!loadPatch(vf, &patch)) {
339 return false;
340 }
341 GBApplyPatch(core->board, &patch);
342 return true;
343}
344
345static void _GBCoreUnloadROM(struct mCore* core) {
346 struct GBCore* gbcore = (struct GBCore*) core;
347 struct LR35902Core* cpu = core->cpu;
348 if (gbcore->cheatDevice) {
349 LR35902HotplugDetach(cpu, CPU_COMPONENT_CHEAT_DEVICE);
350 cpu->components[CPU_COMPONENT_CHEAT_DEVICE] = NULL;
351 mCheatDeviceDestroy(gbcore->cheatDevice);
352 gbcore->cheatDevice = NULL;
353 }
354 return GBUnloadROM(core->board);
355}
356
357static void _GBCoreChecksum(const struct mCore* core, void* data, enum mCoreChecksumType type) {
358 struct GB* gb = (struct GB*) core->board;
359 switch (type) {
360 case CHECKSUM_CRC32:
361 memcpy(data, &gb->romCrc32, sizeof(gb->romCrc32));
362 break;
363 }
364 return;
365}
366
367static void _GBCoreReset(struct mCore* core) {
368 struct GBCore* gbcore = (struct GBCore*) core;
369 struct GB* gb = (struct GB*) core->board;
370 if (gbcore->renderer.outputBuffer) {
371 GBVideoAssociateRenderer(&gb->video, &gbcore->renderer.d);
372 }
373
374 if (gb->memory.rom) {
375 int doColorOverride = 0;
376 mCoreConfigGetIntValue(&core->config, "useCgbColors", &doColorOverride);
377
378 struct GBCartridgeOverride override;
379 const struct GBCartridge* cart = (const struct GBCartridge*) &gb->memory.rom[0x100];
380 override.headerCrc32 = doCrc32(cart, sizeof(*cart));
381 if (GBOverrideFind(gbcore->overrides, &override) || (doColorOverride && GBOverrideColorFind(&override))) {
382 GBOverrideApply(gb, &override);
383 }
384 }
385
386 const char* modelGB = mCoreConfigGetValue(&core->config, "gb.model");
387 const char* modelCGB = mCoreConfigGetValue(&core->config, "cgb.model");
388 const char* modelSGB = mCoreConfigGetValue(&core->config, "sgb.model");
389 if (modelGB || modelCGB || modelSGB) {
390 GBDetectModel(gb);
391 if (gb->model == GB_MODEL_DMG && modelGB) {
392 gb->model = GBNameToModel(modelGB);
393 } else if ((gb->model & GB_MODEL_CGB) && modelCGB) {
394 gb->model = GBNameToModel(modelCGB);
395 } else if ((gb->model & GB_MODEL_SGB) && modelSGB) {
396 gb->model = GBNameToModel(modelSGB);
397 }
398 }
399
400#if !defined(MINIMAL_CORE) || MINIMAL_CORE < 2
401 if (!gb->biosVf && core->opts.useBios) {
402 struct VFile* bios = NULL;
403 bool found = false;
404 if (core->opts.bios) {
405 bios = VFileOpen(core->opts.bios, O_RDONLY);
406 if (bios && GBIsBIOS(bios)) {
407 found = true;
408 } else if (bios) {
409 bios->close(bios);
410 bios = NULL;
411 }
412 }
413 if (!found) {
414 GBDetectModel(gb);
415 const char* configPath = NULL;
416
417 switch (gb->model) {
418 case GB_MODEL_DMG:
419 case GB_MODEL_MGB: // TODO
420 configPath = mCoreConfigGetValue(&core->config, "gb.bios");
421 break;
422 case GB_MODEL_SGB:
423 case GB_MODEL_SGB2: // TODO
424 configPath = mCoreConfigGetValue(&core->config, "sgb.bios");
425 break;
426 case GB_MODEL_CGB:
427 case GB_MODEL_AGB:
428 configPath = mCoreConfigGetValue(&core->config, "gbc.bios");
429 break;
430 default:
431 break;
432 };
433 if (configPath) {
434 bios = VFileOpen(configPath, O_RDONLY);
435 }
436 if (bios && GBIsBIOS(bios)) {
437 found = true;
438 } else if (bios) {
439 bios->close(bios);
440 bios = NULL;
441 }
442 }
443 if (!found) {
444 char path[PATH_MAX];
445 mCoreConfigDirectory(path, PATH_MAX);
446 switch (gb->model) {
447 case GB_MODEL_DMG:
448 case GB_MODEL_MGB: // TODO
449 strncat(path, PATH_SEP "gb_bios.bin", PATH_MAX - strlen(path));
450 break;
451 case GB_MODEL_SGB:
452 case GB_MODEL_SGB2: // TODO
453 strncat(path, PATH_SEP "sgb_bios.bin", PATH_MAX - strlen(path));
454 break;
455 case GB_MODEL_CGB:
456 case GB_MODEL_AGB:
457 strncat(path, PATH_SEP "gbc_bios.bin", PATH_MAX - strlen(path));
458 break;
459 default:
460 break;
461 };
462 bios = VFileOpen(path, O_RDONLY);
463 if (bios && GBIsBIOS(bios)) {
464 found = true;
465 } else if (bios) {
466 bios->close(bios);
467 bios = NULL;
468 }
469 }
470 if (bios) {
471 GBLoadBIOS(gb, bios);
472 }
473 }
474#endif
475
476 LR35902Reset(core->cpu);
477
478 if (core->opts.skipBios) {
479 GBSkipBIOS(core->board);
480 }
481}
482
483static void _GBCoreRunFrame(struct mCore* core) {
484 struct GB* gb = core->board;
485 int32_t frameCounter = gb->video.frameCounter;
486 while (gb->video.frameCounter == frameCounter) {
487 LR35902Run(core->cpu);
488 }
489}
490
491static void _GBCoreRunLoop(struct mCore* core) {
492 LR35902Run(core->cpu);
493}
494
495static void _GBCoreStep(struct mCore* core) {
496 struct LR35902Core* cpu = core->cpu;
497 do {
498 LR35902Tick(cpu);
499 } while (cpu->executionState != LR35902_CORE_FETCH);
500}
501
502static size_t _GBCoreStateSize(struct mCore* core) {
503 UNUSED(core);
504 return sizeof(struct GBSerializedState);
505}
506
507static bool _GBCoreLoadState(struct mCore* core, const void* state) {
508 return GBDeserialize(core->board, state);
509}
510
511static bool _GBCoreSaveState(struct mCore* core, void* state) {
512 struct LR35902Core* cpu = core->cpu;
513 while (cpu->executionState != LR35902_CORE_FETCH) {
514 LR35902Tick(cpu);
515 }
516 GBSerialize(core->board, state);
517 return true;
518}
519
520static void _GBCoreSetKeys(struct mCore* core, uint32_t keys) {
521 struct GBCore* gbcore = (struct GBCore*) core;
522 gbcore->keys = keys;
523 GBTestKeypadIRQ(core->board);
524}
525
526static void _GBCoreAddKeys(struct mCore* core, uint32_t keys) {
527 struct GBCore* gbcore = (struct GBCore*) core;
528 gbcore->keys |= keys;
529 GBTestKeypadIRQ(core->board);
530}
531
532static void _GBCoreClearKeys(struct mCore* core, uint32_t keys) {
533 struct GBCore* gbcore = (struct GBCore*) core;
534 gbcore->keys &= ~keys;
535}
536
537static void _GBCoreSetCursorLocation(struct mCore* core, int x, int y) {
538 UNUSED(core);
539 UNUSED(x);
540 UNUSED(y);
541}
542
543static void _GBCoreSetCursorDown(struct mCore* core, bool down) {
544 UNUSED(core);
545 UNUSED(down);
546}
547
548static int32_t _GBCoreFrameCounter(const struct mCore* core) {
549 const struct GB* gb = core->board;
550 return gb->video.frameCounter;
551}
552
553static int32_t _GBCoreFrameCycles(const struct mCore* core) {
554 UNUSED(core);
555 return GB_VIDEO_TOTAL_LENGTH;
556}
557
558static int32_t _GBCoreFrequency(const struct mCore* core) {
559 UNUSED(core);
560 // TODO: GB differences
561 return DMG_LR35902_FREQUENCY;
562}
563
564static void _GBCoreGetGameTitle(const struct mCore* core, char* title) {
565 GBGetGameTitle(core->board, title);
566}
567
568static void _GBCoreGetGameCode(const struct mCore* core, char* title) {
569 GBGetGameCode(core->board, title);
570}
571
572static void _GBCoreSetPeripheral(struct mCore* core, int type, void* periph) {
573 struct GB* gb = core->board;
574 switch (type) {
575 case mPERIPH_ROTATION:
576 gb->memory.rotation = periph;
577 break;
578 case mPERIPH_RUMBLE:
579 gb->memory.rumble = periph;
580 break;
581 case mPERIPH_IMAGE_SOURCE:
582 gb->memory.cam = periph;
583 break;
584 default:
585 return;
586 }
587}
588
589static uint32_t _GBCoreBusRead8(struct mCore* core, uint32_t address) {
590 struct LR35902Core* cpu = core->cpu;
591 return cpu->memory.load8(cpu, address);
592}
593
594static uint32_t _GBCoreBusRead16(struct mCore* core, uint32_t address) {
595 struct LR35902Core* cpu = core->cpu;
596 return cpu->memory.load8(cpu, address) | (cpu->memory.load8(cpu, address + 1) << 8);
597}
598
599static uint32_t _GBCoreBusRead32(struct mCore* core, uint32_t address) {
600 struct LR35902Core* cpu = core->cpu;
601 return cpu->memory.load8(cpu, address) | (cpu->memory.load8(cpu, address + 1) << 8) |
602 (cpu->memory.load8(cpu, address + 2) << 16) | (cpu->memory.load8(cpu, address + 3) << 24);
603}
604
605static void _GBCoreBusWrite8(struct mCore* core, uint32_t address, uint8_t value) {
606 struct LR35902Core* cpu = core->cpu;
607 cpu->memory.store8(cpu, address, value);
608}
609
610static void _GBCoreBusWrite16(struct mCore* core, uint32_t address, uint16_t value) {
611 struct LR35902Core* cpu = core->cpu;
612 cpu->memory.store8(cpu, address, value);
613 cpu->memory.store8(cpu, address + 1, value >> 8);
614}
615
616static void _GBCoreBusWrite32(struct mCore* core, uint32_t address, uint32_t value) {
617 struct LR35902Core* cpu = core->cpu;
618 cpu->memory.store8(cpu, address, value);
619 cpu->memory.store8(cpu, address + 1, value >> 8);
620 cpu->memory.store8(cpu, address + 2, value >> 16);
621 cpu->memory.store8(cpu, address + 3, value >> 24);
622}
623
624static uint32_t _GBCoreRawRead8(struct mCore* core, uint32_t address, int segment) {
625 struct LR35902Core* cpu = core->cpu;
626 return GBView8(cpu, address, segment);
627}
628
629static uint32_t _GBCoreRawRead16(struct mCore* core, uint32_t address, int segment) {
630 struct LR35902Core* cpu = core->cpu;
631 return GBView8(cpu, address, segment) | (GBView8(cpu, address + 1, segment) << 8);
632}
633
634static uint32_t _GBCoreRawRead32(struct mCore* core, uint32_t address, int segment) {
635 struct LR35902Core* cpu = core->cpu;
636 return GBView8(cpu, address, segment) | (GBView8(cpu, address + 1, segment) << 8) |
637 (GBView8(cpu, address + 2, segment) << 16) | (GBView8(cpu, address + 3, segment) << 24);
638}
639
640static void _GBCoreRawWrite8(struct mCore* core, uint32_t address, int segment, uint8_t value) {
641 struct LR35902Core* cpu = core->cpu;
642 GBPatch8(cpu, address, value, NULL, segment);
643}
644
645static void _GBCoreRawWrite16(struct mCore* core, uint32_t address, int segment, uint16_t value) {
646 struct LR35902Core* cpu = core->cpu;
647 GBPatch8(cpu, address, value, NULL, segment);
648 GBPatch8(cpu, address + 1, value >> 8, NULL, segment);
649}
650
651static void _GBCoreRawWrite32(struct mCore* core, uint32_t address, int segment, uint32_t value) {
652 struct LR35902Core* cpu = core->cpu;
653 GBPatch8(cpu, address, value, NULL, segment);
654 GBPatch8(cpu, address + 1, value >> 8, NULL, segment);
655 GBPatch8(cpu, address + 2, value >> 16, NULL, segment);
656 GBPatch8(cpu, address + 3, value >> 24, NULL, segment);
657}
658
659size_t _GBListMemoryBlocks(const struct mCore* core, const struct mCoreMemoryBlock** blocks) {
660 const struct GB* gb = core->board;
661 switch (gb->model) {
662 case GB_MODEL_DMG:
663 case GB_MODEL_MGB:
664 case GB_MODEL_SGB:
665 case GB_MODEL_SGB2:
666 default:
667 *blocks = _GBMemoryBlocks;
668 return sizeof(_GBMemoryBlocks) / sizeof(*_GBMemoryBlocks);
669 case GB_MODEL_CGB:
670 case GB_MODEL_AGB:
671 *blocks = _GBCMemoryBlocks;
672 return sizeof(_GBCMemoryBlocks) / sizeof(*_GBCMemoryBlocks);
673 }
674}
675
676void* _GBGetMemoryBlock(struct mCore* core, size_t id, size_t* sizeOut) {
677 struct GB* gb = core->board;
678 bool isCgb = gb->model >= GB_MODEL_CGB;
679 switch (id) {
680 default:
681 return NULL;
682 case GB_REGION_CART_BANK0:
683 *sizeOut = gb->memory.romSize;
684 return gb->memory.rom;
685 case GB_REGION_VRAM:
686 *sizeOut = GB_SIZE_WORKING_RAM_BANK0 * (isCgb ? 1 : 2);
687 return gb->video.vram;
688 case GB_REGION_EXTERNAL_RAM:
689 *sizeOut = gb->sramSize;
690 return gb->memory.sram;
691 case GB_REGION_WORKING_RAM_BANK0:
692 *sizeOut = GB_SIZE_VRAM * (isCgb ? 8 : 2);
693 return gb->memory.wram;
694 case GB_BASE_OAM:
695 *sizeOut = GB_SIZE_OAM;
696 return gb->video.oam.raw;
697 case GB_BASE_HRAM:
698 *sizeOut = GB_SIZE_HRAM;
699 return gb->memory.hram;
700 }
701}
702
703#ifdef USE_DEBUGGERS
704static bool _GBCoreSupportsDebuggerType(struct mCore* core, enum mDebuggerType type) {
705 UNUSED(core);
706 switch (type) {
707 case DEBUGGER_CLI:
708 return true;
709 default:
710 return false;
711 }
712}
713
714static struct mDebuggerPlatform* _GBCoreDebuggerPlatform(struct mCore* core) {
715 struct GBCore* gbcore = (struct GBCore*) core;
716 struct GB* gb = core->board;
717 if (!gbcore->debuggerPlatform) {
718 struct LR35902Debugger* platform = (struct LR35902Debugger*) GBDebuggerCreate(gb);
719 gbcore->debuggerPlatform = &platform->d;
720 }
721 return gbcore->debuggerPlatform;
722}
723
724static struct CLIDebuggerSystem* _GBCoreCliDebuggerSystem(struct mCore* core) {
725 return GBCLIDebuggerCreate(core);
726}
727
728static void _GBCoreAttachDebugger(struct mCore* core, struct mDebugger* debugger) {
729 struct LR35902Core* cpu = core->cpu;
730 if (core->debugger) {
731 LR35902HotplugDetach(cpu, CPU_COMPONENT_DEBUGGER);
732 }
733 cpu->components[CPU_COMPONENT_DEBUGGER] = &debugger->d;
734 LR35902HotplugAttach(cpu, CPU_COMPONENT_DEBUGGER);
735 core->debugger = debugger;
736}
737
738static void _GBCoreDetachDebugger(struct mCore* core) {
739 struct LR35902Core* cpu = core->cpu;
740 if (core->debugger) {
741 LR35902HotplugDetach(cpu, CPU_COMPONENT_DEBUGGER);
742 }
743 cpu->components[CPU_COMPONENT_DEBUGGER] = NULL;
744 core->debugger = NULL;
745}
746
747static void _GBCoreLoadSymbols(struct mCore* core, struct VFile* vf) {
748 core->symbolTable = mDebuggerSymbolTableCreate();
749#if !defined(MINIMAL_CORE) || MINIMAL_CORE < 2
750 if (!vf) {
751 vf = mDirectorySetOpenSuffix(&core->dirs, core->dirs.base, ".sym", O_RDONLY);
752 }
753#endif
754 if (!vf) {
755 return;
756 }
757 GBLoadSymbols(core->symbolTable, vf);
758}
759
760static bool _GBCoreLookupIdentifier(struct mCore* core, const char* name, int32_t* value, int* segment) {
761 UNUSED(core);
762 *segment = -1;
763 int i;
764 for (i = 0; i < REG_MAX; ++i) {
765 const char* reg = GBIORegisterNames[i];
766 if (reg && strcasecmp(reg, name) == 0) {
767 *value = GB_BASE_IO | i;
768 return true;
769 }
770 }
771 return false;
772}
773#endif
774
775static struct mCheatDevice* _GBCoreCheatDevice(struct mCore* core) {
776 struct GBCore* gbcore = (struct GBCore*) core;
777 if (!gbcore->cheatDevice) {
778 gbcore->cheatDevice = GBCheatDeviceCreate();
779 ((struct LR35902Core*) core->cpu)->components[CPU_COMPONENT_CHEAT_DEVICE] = &gbcore->cheatDevice->d;
780 LR35902HotplugAttach(core->cpu, CPU_COMPONENT_CHEAT_DEVICE);
781 gbcore->cheatDevice->p = core;
782 }
783 return gbcore->cheatDevice;
784}
785
786static size_t _GBCoreSavedataClone(struct mCore* core, void** sram) {
787 struct GB* gb = core->board;
788 struct VFile* vf = gb->sramVf;
789 if (vf) {
790 *sram = malloc(vf->size(vf));
791 vf->seek(vf, 0, SEEK_SET);
792 return vf->read(vf, *sram, vf->size(vf));
793 }
794 *sram = malloc(gb->sramSize);
795 memcpy(*sram, gb->memory.sram, gb->sramSize);
796 return gb->sramSize;
797}
798
799static bool _GBCoreSavedataRestore(struct mCore* core, const void* sram, size_t size, bool writeback) {
800 struct GB* gb = core->board;
801 if (!writeback) {
802 struct VFile* vf = VFileMemChunk(sram, size);
803 GBSavedataMask(gb, vf, true);
804 return true;
805 }
806 struct VFile* vf = gb->sramVf;
807 if (vf) {
808 vf->seek(vf, 0, SEEK_SET);
809 return vf->write(vf, sram, size) > 0;
810 }
811 if (size > 0x20000) {
812 size = 0x20000;
813 }
814 GBResizeSram(gb, size);
815 memcpy(gb->memory.sram, sram, size);
816 return true;
817}
818
819static size_t _GBCoreListVideoLayers(const struct mCore* core, const struct mCoreChannelInfo** info) {
820 UNUSED(core);
821 if (info) {
822 *info = _GBVideoLayers;
823 }
824 return sizeof(_GBVideoLayers) / sizeof(*_GBVideoLayers);
825}
826
827static size_t _GBCoreListAudioChannels(const struct mCore* core, const struct mCoreChannelInfo** info) {
828 UNUSED(core);
829 if (info) {
830 *info = _GBAudioChannels;
831 }
832 return sizeof(_GBAudioChannels) / sizeof(*_GBAudioChannels);
833}
834
835static void _GBCoreEnableVideoLayer(struct mCore* core, size_t id, bool enable) {
836 struct GB* gb = core->board;
837 switch (id) {
838 case 0:
839 gb->video.renderer->disableBG = !enable;
840 break;
841 case 1:
842 gb->video.renderer->disableWIN = !enable;
843 break;
844 case 2:
845 gb->video.renderer->disableOBJ = !enable;
846 break;
847 default:
848 break;
849 }
850}
851
852static void _GBCoreEnableAudioChannel(struct mCore* core, size_t id, bool enable) {
853 struct GB* gb = core->board;
854 switch (id) {
855 case 0:
856 case 1:
857 case 2:
858 case 3:
859 gb->audio.forceDisableCh[id] = !enable;
860 break;
861 default:
862 break;
863 }
864}
865
866static void _GBCoreAdjustVideoLayer(struct mCore* core, size_t id, int32_t x, int32_t y) {
867 struct GBCore* gbcore = (struct GBCore*) core;
868 switch (id) {
869 case 0:
870 gbcore->renderer.offsetScx = x;
871 gbcore->renderer.offsetScy = y;
872 break;
873 case 1:
874 gbcore->renderer.offsetWx = x;
875 gbcore->renderer.offsetWy = y;
876 break;
877 case 2:
878 gbcore->renderer.objOffsetX = x;
879 gbcore->renderer.objOffsetY = y;
880 break;
881 default:
882 return;
883 }
884}
885
886#ifndef MINIMAL_CORE
887static void _GBCoreStartVideoLog(struct mCore* core, struct mVideoLogContext* context) {
888 struct GBCore* gbcore = (struct GBCore*) core;
889 struct GB* gb = core->board;
890 gbcore->logContext = context;
891
892 int channelId = mVideoLoggerAddChannel(context);
893 gbcore->proxyRenderer.logger = malloc(sizeof(struct mVideoLogger));
894 mVideoLoggerRendererCreate(gbcore->proxyRenderer.logger, false);
895 mVideoLoggerAttachChannel(gbcore->proxyRenderer.logger, context, channelId);
896 gbcore->proxyRenderer.logger->block = false;
897
898 GBVideoProxyRendererCreate(&gbcore->proxyRenderer, &gbcore->renderer.d);
899 GBVideoProxyRendererShim(&gb->video, &gbcore->proxyRenderer);
900}
901
902static void _GBCoreEndVideoLog(struct mCore* core) {
903 struct GBCore* gbcore = (struct GBCore*) core;
904 struct GB* gb = core->board;
905 GBVideoProxyRendererUnshim(&gb->video, &gbcore->proxyRenderer);
906 free(gbcore->proxyRenderer.logger);
907 gbcore->proxyRenderer.logger = NULL;
908}
909#endif
910
911struct mCore* GBCoreCreate(void) {
912 struct GBCore* gbcore = malloc(sizeof(*gbcore));
913 struct mCore* core = &gbcore->d;
914 memset(&core->opts, 0, sizeof(core->opts));
915 core->cpu = NULL;
916 core->board = NULL;
917 core->debugger = NULL;
918 core->symbolTable = NULL;
919 core->init = _GBCoreInit;
920 core->deinit = _GBCoreDeinit;
921 core->platform = _GBCorePlatform;
922 core->supportsFeature = _GBCoreSupportsFeature;
923 core->setSync = _GBCoreSetSync;
924 core->loadConfig = _GBCoreLoadConfig;
925 core->desiredVideoDimensions = _GBCoreDesiredVideoDimensions;
926 core->setVideoBuffer = _GBCoreSetVideoBuffer;
927 core->setVideoGLTex = _GBCoreSetVideoGLTex;
928 core->getPixels = _GBCoreGetPixels;
929 core->putPixels = _GBCorePutPixels;
930 core->getAudioChannel = _GBCoreGetAudioChannel;
931 core->setAudioBufferSize = _GBCoreSetAudioBufferSize;
932 core->getAudioBufferSize = _GBCoreGetAudioBufferSize;
933 core->setAVStream = _GBCoreSetAVStream;
934 core->addCoreCallbacks = _GBCoreAddCoreCallbacks;
935 core->clearCoreCallbacks = _GBCoreClearCoreCallbacks;
936 core->isROM = GBIsROM;
937 core->loadROM = _GBCoreLoadROM;
938 core->loadBIOS = _GBCoreLoadBIOS;
939 core->loadSave = _GBCoreLoadSave;
940 core->loadTemporarySave = _GBCoreLoadTemporarySave;
941 core->loadPatch = _GBCoreLoadPatch;
942 core->unloadROM = _GBCoreUnloadROM;
943 core->checksum = _GBCoreChecksum;
944 core->reset = _GBCoreReset;
945 core->runFrame = _GBCoreRunFrame;
946 core->runLoop = _GBCoreRunLoop;
947 core->step = _GBCoreStep;
948 core->stateSize = _GBCoreStateSize;
949 core->loadState = _GBCoreLoadState;
950 core->saveState = _GBCoreSaveState;
951 core->setKeys = _GBCoreSetKeys;
952 core->addKeys = _GBCoreAddKeys;
953 core->clearKeys = _GBCoreClearKeys;
954 core->setCursorLocation = _GBCoreSetCursorLocation;
955 core->setCursorDown = _GBCoreSetCursorDown;
956 core->frameCounter = _GBCoreFrameCounter;
957 core->frameCycles = _GBCoreFrameCycles;
958 core->frequency = _GBCoreFrequency;
959 core->getGameTitle = _GBCoreGetGameTitle;
960 core->getGameCode = _GBCoreGetGameCode;
961 core->setPeripheral = _GBCoreSetPeripheral;
962 core->busRead8 = _GBCoreBusRead8;
963 core->busRead16 = _GBCoreBusRead16;
964 core->busRead32 = _GBCoreBusRead32;
965 core->busWrite8 = _GBCoreBusWrite8;
966 core->busWrite16 = _GBCoreBusWrite16;
967 core->busWrite32 = _GBCoreBusWrite32;
968 core->rawRead8 = _GBCoreRawRead8;
969 core->rawRead16 = _GBCoreRawRead16;
970 core->rawRead32 = _GBCoreRawRead32;
971 core->rawWrite8 = _GBCoreRawWrite8;
972 core->rawWrite16 = _GBCoreRawWrite16;
973 core->rawWrite32 = _GBCoreRawWrite32;
974 core->listMemoryBlocks = _GBListMemoryBlocks;
975 core->getMemoryBlock = _GBGetMemoryBlock;
976#ifdef USE_DEBUGGERS
977 core->supportsDebuggerType = _GBCoreSupportsDebuggerType;
978 core->debuggerPlatform = _GBCoreDebuggerPlatform;
979 core->cliDebuggerSystem = _GBCoreCliDebuggerSystem;
980 core->attachDebugger = _GBCoreAttachDebugger;
981 core->detachDebugger = _GBCoreDetachDebugger;
982 core->loadSymbols = _GBCoreLoadSymbols;
983 core->lookupIdentifier = _GBCoreLookupIdentifier;
984#endif
985 core->cheatDevice = _GBCoreCheatDevice;
986 core->savedataClone = _GBCoreSavedataClone;
987 core->savedataRestore = _GBCoreSavedataRestore;
988 core->listVideoLayers = _GBCoreListVideoLayers;
989 core->listAudioChannels = _GBCoreListAudioChannels;
990 core->enableVideoLayer = _GBCoreEnableVideoLayer;
991 core->enableAudioChannel = _GBCoreEnableAudioChannel;
992 core->adjustVideoLayer = _GBCoreAdjustVideoLayer;
993#ifndef MINIMAL_CORE
994 core->startVideoLog = _GBCoreStartVideoLog;
995 core->endVideoLog = _GBCoreEndVideoLog;
996#endif
997 return core;
998}
999
1000#ifndef MINIMAL_CORE
1001static void _GBVLPStartFrameCallback(void *context) {
1002 struct mCore* core = context;
1003 struct GBCore* gbcore = (struct GBCore*) core;
1004 struct GB* gb = core->board;
1005
1006 if (!mVideoLoggerRendererRun(gbcore->proxyRenderer.logger, true)) {
1007 GBVideoProxyRendererUnshim(&gb->video, &gbcore->proxyRenderer);
1008 mVideoLogContextRewind(gbcore->logContext, core);
1009 GBVideoProxyRendererShim(&gb->video, &gbcore->proxyRenderer);
1010 }
1011}
1012
1013static bool _GBVLPInit(struct mCore* core) {
1014 struct GBCore* gbcore = (struct GBCore*) core;
1015 if (!_GBCoreInit(core)) {
1016 return false;
1017 }
1018 gbcore->proxyRenderer.logger = malloc(sizeof(struct mVideoLogger));
1019 mVideoLoggerRendererCreate(gbcore->proxyRenderer.logger, true);
1020 GBVideoProxyRendererCreate(&gbcore->proxyRenderer, NULL);
1021 memset(&gbcore->logCallbacks, 0, sizeof(gbcore->logCallbacks));
1022 gbcore->logCallbacks.videoFrameStarted = _GBVLPStartFrameCallback;
1023 gbcore->logCallbacks.context = core;
1024 core->addCoreCallbacks(core, &gbcore->logCallbacks);
1025 return true;
1026}
1027
1028static void _GBVLPDeinit(struct mCore* core) {
1029 struct GBCore* gbcore = (struct GBCore*) core;
1030 if (gbcore->logContext) {
1031 mVideoLogContextDestroy(core, gbcore->logContext);
1032 }
1033 _GBCoreDeinit(core);
1034}
1035
1036static void _GBVLPReset(struct mCore* core) {
1037 struct GBCore* gbcore = (struct GBCore*) core;
1038 struct GB* gb = (struct GB*) core->board;
1039 if (gb->video.renderer == &gbcore->proxyRenderer.d) {
1040 GBVideoProxyRendererUnshim(&gb->video, &gbcore->proxyRenderer);
1041 } else if (gbcore->renderer.outputBuffer) {
1042 struct GBVideoRenderer* renderer = &gbcore->renderer.d;
1043 GBVideoAssociateRenderer(&gb->video, renderer);
1044 }
1045
1046 LR35902Reset(core->cpu);
1047 mVideoLogContextRewind(gbcore->logContext, core);
1048 GBVideoProxyRendererShim(&gb->video, &gbcore->proxyRenderer);
1049
1050 // Make sure CPU loop never spins
1051 GBHalt(gb->cpu);
1052 gb->memory.ie = 0;
1053 gb->memory.ime = false;
1054}
1055
1056static bool _GBVLPLoadROM(struct mCore* core, struct VFile* vf) {
1057 struct GBCore* gbcore = (struct GBCore*) core;
1058 gbcore->logContext = mVideoLogContextCreate(NULL);
1059 if (!mVideoLogContextLoad(gbcore->logContext, vf)) {
1060 mVideoLogContextDestroy(core, gbcore->logContext);
1061 gbcore->logContext = NULL;
1062 return false;
1063 }
1064 mVideoLoggerAttachChannel(gbcore->proxyRenderer.logger, gbcore->logContext, 0);
1065 return true;
1066}
1067
1068static bool _GBVLPLoadState(struct mCore* core, const void* buffer) {
1069 struct GB* gb = (struct GB*) core->board;
1070 const struct GBSerializedState* state = buffer;
1071
1072 gb->timing.root = NULL;
1073 gb->model = state->model;
1074
1075 gb->cpu->pc = GB_BASE_HRAM;
1076 gb->cpu->memory.setActiveRegion(gb->cpu, gb->cpu->pc);
1077
1078 GBVideoReset(&gb->video);
1079 GBVideoDeserialize(&gb->video, state);
1080 GBIODeserialize(gb, state);
1081 GBAudioReset(&gb->audio);
1082
1083 // Make sure CPU loop never spins
1084 GBHalt(gb->cpu);
1085 gb->memory.ie = 0;
1086 gb->memory.ime = false;
1087
1088 return true;
1089}
1090
1091static bool _returnTrue(struct VFile* vf) {
1092 UNUSED(vf);
1093 return true;
1094}
1095
1096struct mCore* GBVideoLogPlayerCreate(void) {
1097 struct mCore* core = GBCoreCreate();
1098 core->init = _GBVLPInit;
1099 core->deinit = _GBVLPDeinit;
1100 core->reset = _GBVLPReset;
1101 core->loadROM = _GBVLPLoadROM;
1102 core->loadState = _GBVLPLoadState;
1103 core->isROM = _returnTrue;
1104 return core;
1105}
1106#else
1107struct mCore* GBVideoLogPlayerCreate(void) {
1108 return false;
1109}
1110#endif