src/gb/gb.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 "gb.h"
7
8#include "gb/io.h"
9#include "gb/mbc.h"
10
11#include "core/core.h"
12#include "core/cheats.h"
13#include "util/crc32.h"
14#include "util/memory.h"
15#include "util/math.h"
16#include "util/patch.h"
17#include "util/vfs.h"
18
19#define CLEANUP_THRESHOLD 15
20
21const uint32_t CGB_LR35902_FREQUENCY = 0x800000;
22const uint32_t SGB_LR35902_FREQUENCY = 0x418B1E;
23
24const uint32_t GB_COMPONENT_MAGIC = 0x400000;
25
26#define DMG_2_BIOS_CHECKSUM 0x59C8598E
27#define CGB_BIOS_CHECKSUM 0x41884E46
28
29mLOG_DEFINE_CATEGORY(GB, "GB");
30
31static void GBInit(void* cpu, struct mCPUComponent* component);
32static void GBInterruptHandlerInit(struct LR35902InterruptHandler* irqh);
33static void GBProcessEvents(struct LR35902Core* cpu);
34static void GBSetInterrupts(struct LR35902Core* cpu, bool enable);
35static void GBIllegal(struct LR35902Core* cpu);
36static void GBStop(struct LR35902Core* cpu);
37
38#ifdef _3DS
39extern uint32_t* romBuffer;
40extern size_t romBufferSize;
41#endif
42
43void GBCreate(struct GB* gb) {
44 gb->d.id = GB_COMPONENT_MAGIC;
45 gb->d.init = GBInit;
46 gb->d.deinit = 0;
47}
48
49static void GBInit(void* cpu, struct mCPUComponent* component) {
50 struct GB* gb = (struct GB*) component;
51 gb->cpu = cpu;
52 gb->sync = NULL;
53
54 GBInterruptHandlerInit(&gb->cpu->irqh);
55 GBMemoryInit(gb);
56
57 gb->video.p = gb;
58 GBVideoInit(&gb->video);
59
60 gb->audio.p = gb;
61 GBAudioInit(&gb->audio, 2048, &gb->memory.io[REG_NR52], GB_AUDIO_DMG); // TODO: Remove magic constant
62
63 gb->sio.p = gb;
64 GBSIOInit(&gb->sio);
65
66 gb->timer.p = gb;
67
68 gb->model = GB_MODEL_AUTODETECT;
69
70 gb->biosVf = 0;
71 gb->romVf = 0;
72 gb->sramVf = 0;
73
74 gb->pristineRom = 0;
75 gb->pristineRomSize = 0;
76 gb->yankedRomSize = 0;
77
78 gb->stream = NULL;
79}
80
81bool GBLoadROM(struct GB* gb, struct VFile* vf) {
82 GBUnloadROM(gb);
83 gb->romVf = vf;
84 gb->pristineRomSize = vf->size(vf);
85 vf->seek(vf, 0, SEEK_SET);
86#ifdef _3DS
87 gb->pristineRom = 0;
88 if (gb->pristineRomSize <= romBufferSize) {
89 gb->pristineRom = romBuffer;
90 vf->read(vf, romBuffer, gb->pristineRomSize);
91 }
92#else
93 gb->pristineRom = vf->map(vf, gb->pristineRomSize, MAP_READ);
94#endif
95 if (!gb->pristineRom) {
96 return false;
97 }
98 gb->yankedRomSize = 0;
99 gb->memory.rom = gb->pristineRom;
100 gb->memory.romBase = gb->memory.rom;
101 gb->memory.romSize = gb->pristineRomSize;
102 gb->romCrc32 = doCrc32(gb->memory.rom, gb->memory.romSize);
103
104 // TODO: error check
105 return true;
106}
107
108bool GBLoadSave(struct GB* gb, struct VFile* vf) {
109 gb->sramVf = vf;
110 gb->sramRealVf = vf;
111 return vf;
112}
113
114static void GBSramDeinit(struct GB* gb) {
115 if (gb->sramVf) {
116 gb->sramVf->unmap(gb->sramVf, gb->memory.sram, gb->sramSize);
117 if (gb->memory.mbcType == GB_MBC3_RTC) {
118 GBMBCRTCWrite(gb);
119 }
120 gb->sramVf->close(gb->sramVf);
121 gb->sramVf = 0;
122 } else if (gb->memory.sram) {
123 mappedMemoryFree(gb->memory.sram, gb->sramSize);
124 }
125 gb->memory.sram = 0;
126}
127
128void GBResizeSram(struct GB* gb, size_t size) {
129 if (gb->memory.sram && size <= gb->sramSize) {
130 return;
131 }
132 mLOG(GB, INFO, "Resizing SRAM to %"PRIz"u bytes", size);
133 struct VFile* vf = gb->sramVf;
134 if (vf) {
135 if (vf == gb->sramRealVf) {
136 ssize_t vfSize = vf->size(vf);
137 if (vfSize >= 0 && (size_t) vfSize < size) {
138 uint8_t extdataBuffer[0x100];
139 if (vfSize & 0xFF) {
140 vf->seek(vf, -(vfSize & 0xFF), SEEK_END);
141 vf->read(vf, extdataBuffer, vfSize & 0xFF);
142 }
143 if (gb->memory.sram) {
144 vf->unmap(vf, gb->memory.sram, gb->sramSize);
145 }
146 vf->truncate(vf, size + (vfSize & 0xFF));
147 if (vfSize & 0xFF) {
148 vf->seek(vf, size, SEEK_SET);
149 vf->write(vf, extdataBuffer, vfSize & 0xFF);
150 }
151 gb->memory.sram = vf->map(vf, size, MAP_WRITE);
152 memset(&gb->memory.sram[gb->sramSize], 0xFF, size - gb->sramSize);
153 } else if (size > gb->sramSize || !gb->memory.sram) {
154 if (gb->memory.sram) {
155 vf->unmap(vf, gb->memory.sram, gb->sramSize);
156 }
157 gb->memory.sram = vf->map(vf, size, MAP_WRITE);
158 }
159 } else {
160 if (gb->memory.sram) {
161 vf->unmap(vf, gb->memory.sram, gb->sramSize);
162 }
163 gb->memory.sram = vf->map(vf, size, MAP_READ);
164 }
165 if (gb->memory.sram == (void*) -1) {
166 gb->memory.sram = NULL;
167 }
168 } else {
169 uint8_t* newSram = anonymousMemoryMap(size);
170 if (gb->memory.sram) {
171 if (size > gb->sramSize) {
172 memcpy(newSram, gb->memory.sram, gb->sramSize);
173 memset(&newSram[gb->sramSize], 0xFF, size - gb->sramSize);
174 } else {
175 memcpy(newSram, gb->memory.sram, size);
176 }
177 mappedMemoryFree(gb->memory.sram, gb->sramSize);
178 } else {
179 memset(newSram, 0xFF, size);
180 }
181 gb->memory.sram = newSram;
182 }
183 if (gb->sramSize < size) {
184 gb->sramSize = size;
185 }
186}
187
188void GBSramClean(struct GB* gb, uint32_t frameCount) {
189 // TODO: Share with GBASavedataClean
190 if (!gb->sramVf) {
191 return;
192 }
193 if (gb->sramDirty & GB_SRAM_DIRT_NEW) {
194 gb->sramDirtAge = frameCount;
195 gb->sramDirty &= ~GB_SRAM_DIRT_NEW;
196 if (!(gb->sramDirty & GB_SRAM_DIRT_SEEN)) {
197 gb->sramDirty |= GB_SRAM_DIRT_SEEN;
198 }
199 } else if ((gb->sramDirty & GB_SRAM_DIRT_SEEN) && frameCount - gb->sramDirtAge > CLEANUP_THRESHOLD) {
200 if (gb->memory.mbcType == GB_MBC3_RTC) {
201 GBMBCRTCWrite(gb);
202 }
203 gb->sramDirty = 0;
204 if (gb->memory.sram && gb->sramVf->sync(gb->sramVf, gb->memory.sram, gb->sramSize)) {
205 mLOG(GB_MEM, INFO, "Savedata synced");
206 } else {
207 mLOG(GB_MEM, INFO, "Savedata failed to sync!");
208 }
209 }
210}
211
212void GBSavedataMask(struct GB* gb, struct VFile* vf) {
213 GBSramDeinit(gb);
214 gb->sramVf = vf;
215 gb->memory.sram = vf->map(vf, gb->sramSize, MAP_READ);
216}
217
218void GBSavedataUnmask(struct GB* gb) {
219 if (gb->sramVf == gb->sramRealVf) {
220 return;
221 }
222 GBSramDeinit(gb);
223 gb->sramVf = gb->sramRealVf;
224 gb->memory.sram = gb->sramVf->map(gb->sramVf, gb->sramSize, MAP_WRITE);
225}
226
227void GBUnloadROM(struct GB* gb) {
228 // TODO: Share with GBAUnloadROM
229 if (gb->memory.rom && gb->memory.romBase != gb->memory.rom) {
230 free(gb->memory.romBase);
231 }
232 if (gb->memory.rom && gb->pristineRom != gb->memory.rom) {
233 if (gb->yankedRomSize) {
234 gb->yankedRomSize = 0;
235 }
236 mappedMemoryFree(gb->memory.rom, GB_SIZE_CART_MAX);
237 }
238 gb->memory.rom = 0;
239
240 if (gb->romVf) {
241#ifndef _3DS
242 gb->romVf->unmap(gb->romVf, gb->pristineRom, gb->pristineRomSize);
243#endif
244 gb->romVf->close(gb->romVf);
245 gb->pristineRom = 0;
246 gb->romVf = 0;
247 }
248
249 GBSramDeinit(gb);
250}
251
252void GBLoadBIOS(struct GB* gb, struct VFile* vf) {
253 gb->biosVf = vf;
254}
255
256void GBApplyPatch(struct GB* gb, struct Patch* patch) {
257 size_t patchedSize = patch->outputSize(patch, gb->memory.romSize);
258 if (!patchedSize) {
259 return;
260 }
261 if (patchedSize > GB_SIZE_CART_MAX) {
262 patchedSize = GB_SIZE_CART_MAX;
263 }
264 gb->memory.rom = anonymousMemoryMap(GB_SIZE_CART_MAX);
265 if (!patch->applyPatch(patch, gb->pristineRom, gb->pristineRomSize, gb->memory.rom, patchedSize)) {
266 mappedMemoryFree(gb->memory.rom, patchedSize);
267 gb->memory.rom = gb->pristineRom;
268 return;
269 }
270 gb->memory.romSize = patchedSize;
271 gb->romCrc32 = doCrc32(gb->memory.rom, gb->memory.romSize);
272}
273
274void GBDestroy(struct GB* gb) {
275 GBUnloadROM(gb);
276
277 if (gb->biosVf) {
278 gb->biosVf->close(gb->biosVf);
279 gb->biosVf = 0;
280 }
281
282 GBMemoryDeinit(gb);
283 GBVideoDeinit(&gb->video);
284 GBSIODeinit(&gb->sio);
285}
286
287void GBInterruptHandlerInit(struct LR35902InterruptHandler* irqh) {
288 irqh->reset = GBReset;
289 irqh->processEvents = GBProcessEvents;
290 irqh->setInterrupts = GBSetInterrupts;
291 irqh->hitIllegal = GBIllegal;
292 irqh->stop = GBStop;
293 irqh->halt = GBHalt;
294}
295
296static uint32_t _GBBiosCRC32(struct VFile* vf) {
297 ssize_t size = vf->size(vf);
298 if (size <= 0 || size > GB_SIZE_CART_BANK0) {
299 return 0;
300 }
301 void* bios = vf->map(vf, size, MAP_READ);
302 uint32_t biosCrc = doCrc32(bios, size);
303 vf->unmap(vf, bios, size);
304 return biosCrc;
305}
306
307bool GBIsBIOS(struct VFile* vf) {
308 switch (_GBBiosCRC32(vf)) {
309 case DMG_2_BIOS_CHECKSUM:
310 case CGB_BIOS_CHECKSUM:
311 return true;
312 default:
313 return false;
314 }
315}
316
317void GBReset(struct LR35902Core* cpu) {
318 struct GB* gb = (struct GB*) cpu->master;
319 GBDetectModel(gb);
320 if (gb->biosVf) {
321 if (!GBIsBIOS(gb->biosVf)) {
322 gb->biosVf->close(gb->biosVf);
323 gb->biosVf = NULL;
324 } else {
325 gb->biosVf->seek(gb->biosVf, 0, SEEK_SET);
326 gb->memory.romBase = malloc(GB_SIZE_CART_BANK0);
327 ssize_t size = gb->biosVf->read(gb->biosVf, gb->memory.romBase, GB_SIZE_CART_BANK0);
328 memcpy(&gb->memory.romBase[size], &gb->memory.rom[size], GB_SIZE_CART_BANK0 - size);
329 if (size > 0x100) {
330 memcpy(&gb->memory.romBase[0x100], &gb->memory.rom[0x100], sizeof(struct GBCartridge));
331 }
332
333 cpu->a = 0;
334 cpu->f.packed = 0;
335 cpu->c = 0;
336 cpu->e = 0;
337 cpu->h = 0;
338 cpu->l = 0;
339 cpu->sp = 0;
340 cpu->pc = 0;
341 }
342 }
343
344 cpu->b = 0;
345 cpu->d = 0;
346
347 if (!gb->biosVf) {
348 switch (gb->model) {
349 case GB_MODEL_DMG:
350 // TODO: SGB
351 case GB_MODEL_SGB:
352 case GB_MODEL_AUTODETECT: // Silence warnings
353 gb->model = GB_MODEL_DMG;
354 cpu->a = 1;
355 cpu->f.packed = 0xB0;
356 cpu->c = 0x13;
357 cpu->e = 0xD8;
358 cpu->h = 1;
359 cpu->l = 0x4D;
360 break;
361 case GB_MODEL_AGB:
362 cpu->b = 1;
363 // Fall through
364 case GB_MODEL_CGB:
365 cpu->a = 0x11;
366 cpu->f.packed = 0x80;
367 cpu->c = 0;
368 cpu->e = 0x08;
369 cpu->h = 0;
370 cpu->l = 0x7C;
371 break;
372 }
373
374 cpu->sp = 0xFFFE;
375 cpu->pc = 0x100;
376 }
377
378 gb->eiPending = INT_MAX;
379 gb->doubleSpeed = 0;
380
381 cpu->memory.setActiveRegion(cpu, cpu->pc);
382
383 if (gb->yankedRomSize) {
384 gb->memory.romSize = gb->yankedRomSize;
385 gb->yankedRomSize = 0;
386 }
387 GBMemoryReset(gb);
388 GBVideoReset(&gb->video);
389 GBTimerReset(&gb->timer);
390 GBIOReset(gb);
391 GBAudioReset(&gb->audio);
392 GBSIOReset(&gb->sio);
393
394 GBSavedataUnmask(gb);
395}
396
397void GBDetectModel(struct GB* gb) {
398 if (gb->model != GB_MODEL_AUTODETECT) {
399 return;
400 }
401 if (gb->biosVf) {
402 switch (_GBBiosCRC32(gb->biosVf)) {
403 case DMG_2_BIOS_CHECKSUM:
404 gb->model = GB_MODEL_DMG;
405 break;
406 case CGB_BIOS_CHECKSUM:
407 gb->model = GB_MODEL_CGB;
408 break;
409 default:
410 gb->biosVf->close(gb->biosVf);
411 gb->biosVf = NULL;
412 }
413 }
414 if (gb->model == GB_MODEL_AUTODETECT && gb->memory.rom) {
415 const struct GBCartridge* cart = (const struct GBCartridge*) &gb->memory.rom[0x100];
416 if (cart->cgb & 0x80) {
417 gb->model = GB_MODEL_CGB;
418 } else {
419 gb->model = GB_MODEL_DMG;
420 }
421 }
422
423 switch (gb->model) {
424 case GB_MODEL_DMG:
425 case GB_MODEL_SGB:
426 case GB_MODEL_AUTODETECT: //Silence warnings
427 gb->audio.style = GB_AUDIO_DMG;
428 break;
429 case GB_MODEL_AGB:
430 case GB_MODEL_CGB:
431 gb->audio.style = GB_AUDIO_CGB;
432 break;
433 }
434}
435
436void GBUpdateIRQs(struct GB* gb) {
437 int irqs = gb->memory.ie & gb->memory.io[REG_IF];
438 if (!irqs) {
439 return;
440 }
441 gb->cpu->halted = false;
442
443 if (!gb->memory.ime || gb->cpu->irqPending) {
444 return;
445 }
446
447 if (irqs & (1 << GB_IRQ_VBLANK)) {
448 LR35902RaiseIRQ(gb->cpu, GB_VECTOR_VBLANK);
449 gb->memory.io[REG_IF] &= ~(1 << GB_IRQ_VBLANK);
450 return;
451 }
452 if (irqs & (1 << GB_IRQ_LCDSTAT)) {
453 LR35902RaiseIRQ(gb->cpu, GB_VECTOR_LCDSTAT);
454 gb->memory.io[REG_IF] &= ~(1 << GB_IRQ_LCDSTAT);
455 return;
456 }
457 if (irqs & (1 << GB_IRQ_TIMER)) {
458 LR35902RaiseIRQ(gb->cpu, GB_VECTOR_TIMER);
459 gb->memory.io[REG_IF] &= ~(1 << GB_IRQ_TIMER);
460 return;
461 }
462 if (irqs & (1 << GB_IRQ_SIO)) {
463 LR35902RaiseIRQ(gb->cpu, GB_VECTOR_SIO);
464 gb->memory.io[REG_IF] &= ~(1 << GB_IRQ_SIO);
465 return;
466 }
467 if (irqs & (1 << GB_IRQ_KEYPAD)) {
468 LR35902RaiseIRQ(gb->cpu, GB_VECTOR_KEYPAD);
469 gb->memory.io[REG_IF] &= ~(1 << GB_IRQ_KEYPAD);
470 }
471}
472
473void GBProcessEvents(struct LR35902Core* cpu) {
474 struct GB* gb = (struct GB*) cpu->master;
475 do {
476 int32_t cycles = cpu->nextEvent;
477 int32_t nextEvent = INT_MAX;
478 int32_t testEvent;
479
480 if (gb->eiPending != INT_MAX) {
481 gb->eiPending -= cycles;
482 if (gb->eiPending <= 0) {
483 gb->memory.ime = true;
484 GBUpdateIRQs(gb);
485 gb->eiPending = INT_MAX;
486 } else {
487 nextEvent = gb->eiPending;
488 }
489 }
490
491 testEvent = GBVideoProcessEvents(&gb->video, cycles >> gb->doubleSpeed);
492 if (testEvent != INT_MAX) {
493 testEvent <<= gb->doubleSpeed;
494 if (testEvent < nextEvent) {
495 nextEvent = testEvent;
496 }
497 }
498
499 testEvent = GBAudioProcessEvents(&gb->audio, cycles >> gb->doubleSpeed);
500 if (testEvent != INT_MAX) {
501 testEvent <<= gb->doubleSpeed;
502 if (testEvent < nextEvent) {
503 nextEvent = testEvent;
504 }
505 }
506
507 testEvent = GBTimerProcessEvents(&gb->timer, cycles);
508 if (testEvent < nextEvent) {
509 nextEvent = testEvent;
510 }
511
512 testEvent = GBSIOProcessEvents(&gb->sio, cycles);
513 if (testEvent < nextEvent) {
514 nextEvent = testEvent;
515 }
516
517 testEvent = GBMemoryProcessEvents(gb, cycles);
518 if (testEvent < nextEvent) {
519 nextEvent = testEvent;
520 }
521
522 cpu->cycles -= cycles;
523 cpu->nextEvent = nextEvent;
524
525 if (cpu->halted) {
526 cpu->cycles = cpu->nextEvent;
527 }
528 } while (cpu->cycles >= cpu->nextEvent);
529}
530
531void GBSetInterrupts(struct LR35902Core* cpu, bool enable) {
532 struct GB* gb = (struct GB*) cpu->master;
533 if (!enable) {
534 gb->memory.ime = enable;
535 gb->eiPending = INT_MAX;
536 GBUpdateIRQs(gb);
537 } else {
538 if (cpu->nextEvent > cpu->cycles + 4) {
539 cpu->nextEvent = cpu->cycles + 4;
540 }
541 gb->eiPending = cpu->cycles + 4;
542 }
543}
544
545void GBHalt(struct LR35902Core* cpu) {
546 if (!cpu->irqPending) {
547 cpu->cycles = cpu->nextEvent;
548 cpu->halted = true;
549 }
550}
551
552void GBStop(struct LR35902Core* cpu) {
553 struct GB* gb = (struct GB*) cpu->master;
554 if (cpu->bus) {
555 mLOG(GB, GAME_ERROR, "Hit illegal stop at address %04X:%02X\n", cpu->pc, cpu->bus);
556 if (cpu->components && cpu->components[CPU_COMPONENT_DEBUGGER]) {
557 struct mDebuggerEntryInfo info = {
558 .address = cpu->pc - 1,
559 .opcode = 0x1000 | cpu->bus
560 };
561 mDebuggerEnter((struct mDebugger*) cpu->components[CPU_COMPONENT_DEBUGGER], DEBUGGER_ENTER_ILLEGAL_OP, &info);
562 }
563 // Hang forever
564 gb->memory.ime = 0;
565 cpu->pc -= 2;
566 } else if (gb->memory.io[REG_KEY1] & 1) {
567 gb->doubleSpeed ^= 1;
568 gb->memory.io[REG_KEY1] &= 1;
569 gb->memory.io[REG_KEY1] |= gb->doubleSpeed << 7;
570 }
571 // TODO: Actually stop
572}
573
574void GBIllegal(struct LR35902Core* cpu) {
575 struct GB* gb = (struct GB*) cpu->master;
576 mLOG(GB, GAME_ERROR, "Hit illegal opcode at address %04X:%02X\n", cpu->pc, cpu->bus);
577 if (cpu->components && cpu->components[CPU_COMPONENT_DEBUGGER]) {
578 struct mDebuggerEntryInfo info = {
579 .address = cpu->pc,
580 .opcode = cpu->bus
581 };
582 mDebuggerEnter((struct mDebugger*) cpu->components[CPU_COMPONENT_DEBUGGER], DEBUGGER_ENTER_ILLEGAL_OP, &info);
583 }
584 // Hang forever
585 gb->memory.ime = 0;
586 --cpu->pc;
587}
588
589bool GBIsROM(struct VFile* vf) {
590 vf->seek(vf, 0x104, SEEK_SET);
591 uint8_t header[4];
592 static const uint8_t knownHeader[4] = { 0xCE, 0xED, 0x66, 0x66};
593
594 if (vf->read(vf, &header, sizeof(header)) < (ssize_t) sizeof(header)) {
595 return false;
596 }
597 if (memcmp(header, knownHeader, sizeof(header))) {
598 return false;
599 }
600 return true;
601}
602
603void GBGetGameTitle(struct GB* gb, char* out) {
604 const struct GBCartridge* cart = NULL;
605 if (gb->memory.rom) {
606 cart = (const struct GBCartridge*) &gb->memory.rom[0x100];
607 }
608 if (gb->pristineRom) {
609 cart = (const struct GBCartridge*) &((uint8_t*) gb->pristineRom)[0x100];
610 }
611 if (!cart) {
612 return;
613 }
614 if (cart->oldLicensee != 0x33) {
615 memcpy(out, cart->titleLong, 16);
616 } else {
617 memcpy(out, cart->titleShort, 11);
618 }
619}
620
621void GBGetGameCode(struct GB* gb, char* out) {
622 memset(out, 0, 8);
623 const struct GBCartridge* cart = NULL;
624 if (gb->memory.rom) {
625 cart = (const struct GBCartridge*) &gb->memory.rom[0x100];
626 }
627 if (gb->pristineRom) {
628 cart = (const struct GBCartridge*) &((uint8_t*) gb->pristineRom)[0x100];
629 }
630 if (!cart) {
631 return;
632 }
633 if (cart->cgb == 0xC0) {
634 memcpy(out, "CGB-????", 8);
635 } else {
636 memcpy(out, "DMG-????", 8);
637 }
638 if (cart->oldLicensee == 0x33) {
639 memcpy(&out[4], cart->maker, 4);
640 }
641}
642
643void GBFrameEnded(struct GB* gb) {
644 GBSramClean(gb, gb->video.frameCounter);
645
646 if (gb->cpu->components && gb->cpu->components[CPU_COMPONENT_CHEAT_DEVICE]) {
647 struct mCheatDevice* device = (struct mCheatDevice*) gb->cpu->components[CPU_COMPONENT_CHEAT_DEVICE];
648 size_t i;
649 for (i = 0; i < mCheatSetsSize(&device->cheats); ++i) {
650 struct mCheatSet* cheats = *mCheatSetsGetPointer(&device->cheats, i);
651 mCheatRefresh(device, cheats);
652 }
653 }
654}