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LoadStdBG3andSpriteTilesClearTilemaps does DMA from RAM

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This commit is contained in:
Snesrev
2023-03-11 18:33:53 +01:00
parent 39ab392092
commit 5596f16cbb
3 changed files with 13 additions and 1 deletions
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8
src/snes/dma.c
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@@ -184,6 +184,8 @@ void dma_write(Dma* dma, uint16_t adr, uint8_t val) {
}
}
extern bool g_fail;
void dma_doDma(Dma* dma) {
if(dma->dmaTimer > 0) {
dma->dmaTimer -= 2;
@@ -201,6 +203,12 @@ void dma_doDma(Dma* dma) {
dma->dmaBusy = false;
return;
}
if (!dma->channel[i].fromB && (dma->channel[i].aBank & 0x80) && !(dma->channel[i].aAdr & 0x8000) && !g_fail) {
printf("Warning! DMA from addr 0x%x\n", dma->channel[i].aBank << 16 | dma->channel[i].aAdr);
g_fail = true;
}
// do channel i
dma_transferByte(
dma, dma->channel[i].aAdr, dma->channel[i].aBank,