pokecrystal-board/home/copy_tilemap.asm
Rangi eb1e3636bb Use labels instead of constants for HRAM
Use explicit ldh instruction to access HRAM locations, don't rely on optimizing ld
2018-08-25 14:28:22 -04:00

36 lines
620 B
NASM

LoadTileMapToTempTileMap::
; Load wTileMap into wTempTileMap
ldh a, [rSVBK]
push af
ld a, BANK(wTempTileMap)
ldh [rSVBK], a
hlcoord 0, 0
decoord 0, 0, wTempTileMap
ld bc, wTileMapEnd - wTileMap
call CopyBytes
pop af
ldh [rSVBK], a
ret
Call_LoadTempTileMapToTileMap::
xor a
ldh [hBGMapMode], a
call LoadTempTileMapToTileMap
ld a, 1
ldh [hBGMapMode], a
ret
LoadTempTileMapToTileMap::
; Load wTempTileMap into wTileMap
ldh a, [rSVBK]
push af
ld a, BANK(wTempTileMap)
ldh [rSVBK], a
hlcoord 0, 0, wTempTileMap
decoord 0, 0
ld bc, wTileMapEnd - wTileMap
call CopyBytes
pop af
ldh [rSVBK], a
ret