diff options
Diffstat (limited to 'engine/gfx/dma_transfer.asm')
| -rw-r--r-- | engine/gfx/dma_transfer.asm | 68 |
1 files changed, 23 insertions, 45 deletions
diff --git a/engine/gfx/dma_transfer.asm b/engine/gfx/dma_transfer.asm index e22adf69a..241649dc5 100644 --- a/engine/gfx/dma_transfer.asm +++ b/engine/gfx/dma_transfer.asm @@ -1,4 +1,4 @@ -HDMATransferAttrMapAndTileMapToWRAMBank3:: ; 104000 +HDMATransferAttrMapAndTileMapToWRAMBank3:: ld hl, .Function jp CallInSafeGFXMode @@ -18,9 +18,8 @@ HDMATransferAttrMapAndTileMapToWRAMBank3:: ; 104000 ld hl, wScratchAttrMap call HDMATransferToWRAMBank3 ret -; 10402d -HDMATransferTileMapToWRAMBank3:: ; 10402d +HDMATransferTileMapToWRAMBank3:: ld hl, .Function jp CallInSafeGFXMode @@ -33,9 +32,8 @@ HDMATransferTileMapToWRAMBank3:: ; 10402d ld hl, wScratchTileMap call HDMATransferToWRAMBank3 ret -; 104047 -HDMATransferAttrMapToWRAMBank3: ; 104047 +HDMATransferAttrMapToWRAMBank3: ld hl, .Function jp CallInSafeGFXMode @@ -48,9 +46,8 @@ HDMATransferAttrMapToWRAMBank3: ; 104047 ld hl, wScratchAttrMap call HDMATransferToWRAMBank3 ret -; 104061 -ReloadMapPart:: ; 104061 +ReloadMapPart:: ld hl, .Function jp CallInSafeGFXMode @@ -80,7 +77,7 @@ ReloadMapPart:: ; 104061 ret -Mobile_ReloadMapPart: ; 104099 +Mobile_ReloadMapPart: ld hl, ReloadMapPart ; useless ld hl, .Function jp CallInSafeGFXMode @@ -110,7 +107,6 @@ Mobile_ReloadMapPart: ; 104099 ei ret -; 1040d4 ; unused ld hl, .unreferenced_1040da @@ -134,7 +130,6 @@ Mobile_ReloadMapPart: ; 104099 ld [hDMATransfer], a call WaitDMATransfer ret -; 1040fb ; unused ld hl, .unreferenced_104101 @@ -148,9 +143,8 @@ Mobile_ReloadMapPart: ; 104099 ld hl, w3_d800 call HDMATransferToWRAMBank3 ret -; 104110 -OpenAndCloseMenu_HDMATransferTileMapAndAttrMap:: ; 104110 +OpenAndCloseMenu_HDMATransferTileMapAndAttrMap:: ; OpenText ld hl, .Function jp CallInSafeGFXMode @@ -182,9 +176,8 @@ OpenAndCloseMenu_HDMATransferTileMapAndAttrMap:: ; 104110 ld [rVBK], a ei ret -; 104148 -Mobile_OpenAndCloseMenu_HDMATransferTileMapAndAttrMap: ; 104148 (41:4148) +Mobile_OpenAndCloseMenu_HDMATransferTileMapAndAttrMap: ld hl, .Function jp CallInSafeGFXMode @@ -209,9 +202,8 @@ Mobile_OpenAndCloseMenu_HDMATransferTileMapAndAttrMap: ; 104148 (41:4148) ld hl, wScratchTileMap call HDMATransfer_Wait127Scanlines_toBGMap ret -; 104177 -CallInSafeGFXMode: ; 104177 +CallInSafeGFXMode: ld a, [hBGMapMode] push af ld a, [hMapAnims] @@ -237,19 +229,16 @@ CallInSafeGFXMode: ; 104177 pop af ld [hBGMapMode], a ret -; 10419c -._hl_ ; 10419c +._hl_ jp hl -; 10419d - -HDMATransferToWRAMBank3: ; 10419d (41:419d) +HDMATransferToWRAMBank3: call _LoadHDMAParameters ld a, $23 ld [hDMATransfer], a -WaitDMATransfer: ; 104a14 +WaitDMATransfer: .loop call DelayFrame ld a, [hDMATransfer] @@ -257,7 +246,7 @@ WaitDMATransfer: ; 104a14 jr nz, .loop ret -HDMATransfer_Wait127Scanlines_toBGMap: ; 1041ad (41:41ad) +HDMATransfer_Wait127Scanlines_toBGMap: ; HDMA transfer from hl to [hBGMapAddress] ; hBGMapAddress -> de ; 2 * SCREEN_HEIGHT -> c @@ -268,7 +257,7 @@ HDMATransfer_Wait127Scanlines_toBGMap: ; 1041ad (41:41ad) ld c, 2 * SCREEN_HEIGHT jr HDMATransfer_Wait127Scanlines -HDMATransfer_Wait123Scanlines_toBGMap: ; 1041b7 (41:41b7) +HDMATransfer_Wait123Scanlines_toBGMap: ; HDMA transfer from hl to [hBGMapAddress] ; hBGMapAddress -> de ; 2 * SCREEN_HEIGHT -> c @@ -279,9 +268,8 @@ HDMATransfer_Wait123Scanlines_toBGMap: ; 1041b7 (41:41b7) ld e, a ld c, 2 * SCREEN_HEIGHT jr HDMATransfer_Wait123Scanlines -; 1041c1 (41:41c1) -HDMATransfer_NoDI: ; 1041c1 +HDMATransfer_NoDI: ; HDMA transfer from hl to [hBGMapAddress] ; [hBGMapAddress] --> de ; 2 * SCREEN_HEIGHT --> c @@ -339,13 +327,11 @@ HDMATransfer_NoDI: ; 1041c1 ld hl, rHDMA5 res 7, [hl] ret -; 104205 HDMATransfer_Wait123Scanlines: ld b, $7b jr _continue_HDMATransfer - HDMATransfer_Wait127Scanlines: ld b, $7f _continue_HDMATransfer: @@ -407,10 +393,8 @@ _continue_HDMATransfer: ei ret -; 10424e - -_LoadHDMAParameters: ; 10424e (41:424e) +_LoadHDMAParameters: ld a, h ld [rHDMA1], a ld a, l @@ -422,14 +406,14 @@ _LoadHDMAParameters: ; 10424e (41:424e) ld [rHDMA4], a ret -PadTilemapForHDMATransfer: ; 10425f (41:425f) +PadTilemapForHDMATransfer: ld c, " " jr PadMapForHDMATransfer -PadAttrMapForHDMATransfer: ; 104263 (41:4263) +PadAttrMapForHDMATransfer: ld c, $0 -PadMapForHDMATransfer: ; 104265 (41:4265) +PadMapForHDMATransfer: ; pad a 20x18 map to 32x18 for HDMA transfer ; back up the padding value in c to hMapObjectIndexBuffer ld a, [hMapObjectIndexBuffer] @@ -466,8 +450,7 @@ PadMapForHDMATransfer: ; 104265 (41:4265) ld [hMapObjectIndexBuffer], a ret - -_Get2bpp:: ; 104284 +_Get2bpp:: ; 2bpp when [rLCDC] & $80 ; switch to WRAM bank 6 ld a, [rSVBK] @@ -510,9 +493,8 @@ _Get2bpp:: ; 104284 pop af ld [rSVBK], a ret -; 1042b2 -_Get1bpp:: ; 1042b2 +_Get1bpp:: ; 1bpp when [rLCDC] & $80 .loop ld a, c @@ -537,9 +519,8 @@ _Get1bpp:: ; 1042b2 sub $10 ld c, a jr .loop -; 1042d6 -.bankswitch ; 1042d6 +.bankswitch ld a, [rSVBK] push af ld a, BANK(wScratchTileMap) @@ -576,12 +557,10 @@ _Get1bpp:: ; 1042b2 pop af ld [rSVBK], a ret -; 104303 -HDMATransfer_OnlyTopFourRows: ; 104303 +HDMATransfer_OnlyTopFourRows: ld hl, .Function jp CallInSafeGFXMode -; 104309 .Function: ld hl, wScratchTileMap @@ -604,7 +583,7 @@ HDMATransfer_OnlyTopFourRows: ; 104303 call HDMATransfer_Wait127Scanlines ret -.Copy: ; 10433a (41:433a) +.Copy: ld b, 4 .outer_loop ld c, SCREEN_WIDTH @@ -623,4 +602,3 @@ HDMATransfer_OnlyTopFourRows: ; 104303 dec b jr nz, .outer_loop ret -; 104350 |