diff options
Diffstat (limited to 'engine/dma_transfer.asm')
| -rwxr-xr-x | engine/dma_transfer.asm | 37 |
1 files changed, 19 insertions, 18 deletions
diff --git a/engine/dma_transfer.asm b/engine/dma_transfer.asm index a0dad0dde..9d95c87b1 100755 --- a/engine/dma_transfer.asm +++ b/engine/dma_transfer.asm @@ -5,10 +5,10 @@ HDMATransferAttrMapAndTileMapToWRAMBank3:: ; 104000 .Function: decoord 0, 0, AttrMap ld hl, wScratchAttrMap - call CutAndPasteAttrMap + call PadAttrMapForHDMATransfer decoord 0, 0 ld hl, wScratchTileMap - call CutAndPasteTilemap + call PadTilemapForHDMATransfer ld a, $0 ld [rVBK], a ld hl, wScratchTileMap @@ -27,7 +27,7 @@ HDMATransferTileMapToWRAMBank3:: ; 10402d .Function: decoord 0, 0 ld hl, wScratchTileMap - call CutAndPasteTilemap + call PadTilemapForHDMATransfer ld a, $0 ld [rVBK], a ld hl, wScratchTileMap @@ -42,7 +42,7 @@ HDMATransferAttrMapToWRAMBank3: ; 104047 .Function: decoord 0, 0, AttrMap ld hl, wScratchAttrMap - call CutAndPasteAttrMap + call PadAttrMapForHDMATransfer ld a, $1 ld [rVBK], a ld hl, wScratchAttrMap @@ -57,10 +57,10 @@ ReloadMapPart:: ; 104061 .Function: decoord 0, 0, AttrMap ld hl, wScratchAttrMap - call CutAndPasteAttrMap + call PadAttrMapForHDMATransfer decoord 0, 0 ld hl, wScratchTileMap - call CutAndPasteTilemap + call PadTilemapForHDMATransfer call DelayFrame di @@ -88,10 +88,10 @@ Mobile_ReloadMapPart: ; 104099 .Function: decoord 0, 0, AttrMap ld hl, wScratchAttrMap - call CutAndPasteAttrMap + call PadAttrMapForHDMATransfer decoord 0, 0 ld hl, wScratchTileMap - call CutAndPasteTilemap + call PadTilemapForHDMATransfer call DelayFrame di @@ -161,10 +161,10 @@ OpenAndCloseMenu_HDMATransferTileMapAndAttrMap:: ; 104110 ; Fill vBGTiles with " " decoord 0, 0, AttrMap ld hl, wScratchAttrMap - call CutAndPasteAttrMap + call PadAttrMapForHDMATransfer decoord 0, 0 ld hl, wScratchTileMap - call CutAndPasteTilemap + call PadTilemapForHDMATransfer call DelayFrame di @@ -194,11 +194,11 @@ Mobile_OpenAndCloseMenu_HDMATransferTileMapAndAttrMap: ; 104148 (41:4148) ; Fill vBGTiles with $ff decoord 0, 0, AttrMap ld hl, wScratchAttrMap - call CutAndPasteAttrMap + call PadAttrMapForHDMATransfer ld c, $ff decoord 0, 0 ld hl, wScratchTileMap - call CutAndPasteMap + call PadMapForHDMATransfer ld a, $1 ld [rVBK], a @@ -422,15 +422,16 @@ _LoadHDMAParameters: ; 10424e (41:424e) ld [rHDMA4], a ret -CutAndPasteTilemap: ; 10425f (41:425f) +PadTilemapForHDMATransfer: ; 10425f (41:425f) ld c, " " - jr CutAndPasteMap + jr PadMapForHDMATransfer -CutAndPasteAttrMap: ; 104263 (41:4263) +PadAttrMapForHDMATransfer: ; 104263 (41:4263) ld c, $0 -CutAndPasteMap: ; 104265 (41:4265) -; back up the value of c to hMapObjectIndexBuffer +PadMapForHDMATransfer: ; 104265 (41:4265) +; pad a 20x18 map to 32x18 for HDMA transfer +; back up the padding value in c to hMapObjectIndexBuffer ld a, [hMapObjectIndexBuffer] push af ld a, c @@ -449,7 +450,7 @@ CutAndPasteMap: ; 104265 (41:4265) dec b jr nz, .loop2 -; load the original value of c into hl 12 times +; load the original padding value of c into hl for 32 - 20 = 12 rows ld a, [hMapObjectIndexBuffer] ld b, BG_MAP_WIDTH - SCREEN_WIDTH .loop3 |