diff options
Diffstat (limited to 'src/home/dma.asm')
| -rw-r--r-- | src/home/dma.asm | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/src/home/dma.asm b/src/home/dma.asm new file mode 100644 index 0000000..bcba963 --- /dev/null +++ b/src/home/dma.asm @@ -0,0 +1,22 @@ +; copy DMA to hDMAFunction +CopyDMAFunction: + ld c, LOW(hDMAFunction) + ld b, JumpToFunctionInTable - DMA + ld hl, DMA +.loop + ld a, [hli] + ld [$ff00+c], a + inc c + dec b + jr nz, .loop + ret + +; CopyDMAFunction copies this function to hDMAFunction ($ff83) +DMA: + ld a, HIGH(wOAM) + ldh [rDMA], a + ld a, $28 +.wait + dec a + jr nz, .wait + ret |