diff options
Diffstat (limited to 'home/vcopy.asm')
| -rw-r--r-- | home/vcopy.asm | 18 |
1 files changed, 9 insertions, 9 deletions
diff --git a/home/vcopy.asm b/home/vcopy.asm index 464faf51..2974dfec 100644 --- a/home/vcopy.asm +++ b/home/vcopy.asm @@ -1,7 +1,7 @@ ; this function seems to be used only once ; it store the address of a row and column of the VRAM background map in hl ; INPUT: h - row, l - column, b - high byte of background tile map address in VRAM -GetRowColAddressBgMap:: ; 1cdd (0:1cdd) +GetRowColAddressBgMap:: xor a srl h rr a @@ -18,7 +18,7 @@ GetRowColAddressBgMap:: ; 1cdd (0:1cdd) ; clears a VRAM background map with blank space tiles ; INPUT: h - high byte of background tile map address in VRAM -ClearBgMap:: ; 1cf0 (0:1cf0) +ClearBgMap:: ld a," " jr .next ld a,l @@ -39,7 +39,7 @@ ClearBgMap:: ; 1cf0 (0:1cf0) ; row or column is more efficient than redrawing the entire screen. ; However, this function is also called repeatedly to redraw the whole screen ; when necessary. It is also used in trade animation and elevator code. -RedrawRowOrColumn:: ; 1ada (0:1ada) +RedrawRowOrColumn:: ld a,[hRedrawRowOrColumnMode] and a ret z @@ -119,7 +119,7 @@ RedrawRowOrColumn:: ; 1ada (0:1ada) ; on when talking to sprites, battling, using menus, etc. This is because ; the above function, RedrawRowOrColumn, is used when walking to ; improve efficiency. -AutoBgMapTransfer:: ; 1b30 (0:1b30) +AutoBgMapTransfer:: ld a,[H_AUTOBGTRANSFERENABLED] and a ret z @@ -163,7 +163,7 @@ AutoBgMapTransfer:: ; 1b30 (0:1b30) ld [H_AUTOBGTRANSFERPORTION],a ; store next portion ld b,6 -TransferBgRows:: ; 1d9e (0:1d9e) +TransferBgRows:: ; unrolled loop and using pop for speed rept 20 / 2 - 1 @@ -197,7 +197,7 @@ TransferBgRows:: ; 1d9e (0:1d9e) ; Copies [H_VBCOPYBGNUMROWS] rows from H_VBCOPYBGSRC to H_VBCOPYBGDEST. ; If H_VBCOPYBGSRC is XX00, the transfer is disabled. -VBlankCopyBgMap:: ; 1bb5 (0:1bb5) +VBlankCopyBgMap:: ld a,[H_VBCOPYBGSRC] ; doubles as enabling byte and a ret z @@ -218,7 +218,7 @@ VBlankCopyBgMap:: ; 1bb5 (0:1bb5) jr TransferBgRows -VBlankCopyDouble:: ; 1bd1 (0:1bd1) +VBlankCopyDouble:: ; Copy [H_VBCOPYDOUBLESIZE] 1bpp tiles ; from H_VBCOPYDOUBLESRC to H_VBCOPYDOUBLEDEST. @@ -286,7 +286,7 @@ VBlankCopyDouble:: ; 1bd1 (0:1bd1) ret -VBlankCopy:: ; 1c21 (0:1c21) +VBlankCopy:: ; Copy [H_VBCOPYSIZE] 2bpp tiles (or 16 * [H_VBCOPYSIZE] tile map entries) ; from H_VBCOPYSRC to H_VBCOPYDEST. @@ -345,7 +345,7 @@ VBlankCopy:: ; 1c21 (0:1c21) ret -UpdateMovingBgTiles:: ; 1c75 (0:1c75) +UpdateMovingBgTiles:: ; Animate water and flower ; tiles in the overworld. |