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Implement high VRAM mirroring for writes

This commit is contained in:
Jeffrey Pfau 2014-07-01 00:26:57 -07:00
parent a7eced1324
commit 2693f9d09b
1 changed files with 5 additions and 1 deletions
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6
src/gba/gba-memory.c
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@ -378,8 +378,10 @@ void GBAStore32(struct ARMCore* cpu, uint32_t address, int32_t value, int* cycle
gba->video.renderer->writePalette(gba->video.renderer, address & (SIZE_PALETTE_RAM - 1), value);
break;
case BASE_VRAM:
if ((address & OFFSET_MASK) < SIZE_VRAM - 2) {
if ((address & OFFSET_MASK) < SIZE_VRAM) {
STORE_32(value, address & 0x0001FFFF, gba->video.renderer->vram);
} else if ((address & OFFSET_MASK) < 0x00020000) {
STORE_32(value, address & 0x00017FFF, gba->video.renderer->vram);
}
break;
case BASE_OAM:
@ -427,6 +429,8 @@ void GBAStore16(struct ARMCore* cpu, uint32_t address, int16_t value, int* cycle
case BASE_VRAM:
if ((address & OFFSET_MASK) < SIZE_VRAM) {
STORE_16(value, address & 0x0001FFFF, gba->video.renderer->vram);
} else if ((address & OFFSET_MASK) < 0x00020000) {
STORE_16(value, address & 0x00017FFF, gba->video.renderer->vram);
}
break;
case BASE_OAM: