void GBReset(struct LR35902Core* cpu) {
struct GB* gb = (struct GB*) cpu->master;
const struct GBCartridge* cart = (const struct GBCartridge*) &gb->memory.rom[0x100];
if (cart->cgb & 0x80) {
gb->model = GB_MODEL_CGB;
gb->audio.style = GB_AUDIO_CGB;
cpu->a = 0x11;
cpu->f.packed = 0x80;
cpu->c = 0;
cpu->e = 0x08;
cpu->h = 0;
cpu->l = 0x7C;
} else {
// TODO: SGB
gb->model = GB_MODEL_DMG;
gb->audio.style = GB_AUDIO_DMG;
cpu->a = 1;
cpu->f.packed = 0xB0;
cpu->c = 0x13;
cpu->e = 0xD8;
cpu->h = 1;
cpu->l = 0x4D;
}
cpu->b = 0;
cpu->d = 0;
cpu->sp = 0xFFFE;
cpu->pc = 0x100;
if (gb->yankedRomSize) {
gb->memory.romSize = gb->yankedRomSize;
gb->yankedRomSize = 0;
}
GBMemoryReset(gb);
GBVideoReset(&gb->video);
GBTimerReset(&gb->timer);
GBIOReset(gb);
GBAudioReset(&gb->audio);
}
void GBReset(struct LR35902Core* cpu) {
struct GB* gb = (struct GB*) cpu->master;
GBDetectModel(gb);
if (gb->biosVf) {
if (!GBIsBIOS(gb->biosVf)) {
gb->biosVf->close(gb->biosVf);
gb->biosVf = NULL;
} else {
gb->biosVf->seek(gb->biosVf, 0, SEEK_SET);
gb->memory.romBase = malloc(GB_SIZE_CART_BANK0);
ssize_t size = gb->biosVf->read(gb->biosVf, gb->memory.romBase, GB_SIZE_CART_BANK0);
memcpy(&gb->memory.romBase[size], &gb->memory.rom[size], GB_SIZE_CART_BANK0 - size);
if (size > 0x100) {
memcpy(&gb->memory.romBase[0x100], &gb->memory.rom[0x100], sizeof(struct GBCartridge));
}
cpu->a = 0;
cpu->f.packed = 0;
cpu->c = 0;
cpu->e = 0;
cpu->h = 0;
cpu->l = 0;
cpu->sp = 0;
cpu->pc = 0;
}
}
cpu->b = 0;
cpu->d = 0;
if (!gb->biosVf) {
switch (gb->model) {
case GB_MODEL_DMG:
// TODO: SGB
case GB_MODEL_SGB:
case GB_MODEL_AUTODETECT: // Silence warnings
gb->model = GB_MODEL_DMG;
cpu->a = 1;
cpu->f.packed = 0xB0;
cpu->c = 0x13;
cpu->e = 0xD8;
cpu->h = 1;
cpu->l = 0x4D;
break;
case GB_MODEL_AGB:
cpu->b = 1;
// Fall through
case GB_MODEL_CGB:
cpu->a = 0x11;
cpu->f.packed = 0x80;
cpu->c = 0;
cpu->e = 0x08;
cpu->h = 0;
cpu->l = 0x7C;
break;
}
cpu->sp = 0xFFFE;
cpu->pc = 0x100;
}
gb->eiPending = INT_MAX;
gb->doubleSpeed = 0;
cpu->memory.setActiveRegion(cpu, cpu->pc);
if (gb->yankedRomSize) {
gb->memory.romSize = gb->yankedRomSize;
gb->yankedRomSize = 0;
}
GBMemoryReset(gb);
GBVideoReset(&gb->video);
GBTimerReset(&gb->timer);
GBAudioReset(&gb->audio);
GBIOReset(gb);
GBSIOReset(&gb->sio);
GBSavedataUnmask(gb);
}