shithub: pokecrystal

ref: 35f6b6e68c8c8a7d164f67e1ae452270a28ac3b7
dir: /home/copy_tilemap.asm/

View raw version 
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

SafeLoadTempTilemapToTilemap::
	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