src/ubox/ubox_put_tile.z80


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.globl _ubox_put_tile

WRTVRM = 0x004d
BG_TILE_MAP = 0x1800

_ubox_put_tile::
	ld hl, #2
	add hl, sp

	ld c, (hl)
	inc hl
	ld b, (hl)
	inc hl

	ld a, (hl)

	ld h, #0
	ld l, b
	add hl, hl
	add hl, hl
	add hl, hl
	add hl, hl
	add hl, hl
	ld b, #0
	add hl, bc

	ld bc, #BG_TILE_MAP
	add hl, bc

	jp WRTVRM