.globl _ubox_set_tiles_colors LDIRVM = 0x005c BG_COLS = 0x2000 _ubox_set_tiles_colors:: ld de, #BG_COLS ld bc, #256 * 8 push hl call LDIRVM pop hl ld de, #BG_COLS + 256 * 8 ld bc, #256 * 8 push hl call LDIRVM pop hl ld de, #BG_COLS + 256 * 8 * 2 ld bc, #256 * 8 jp LDIRVM