ref: bbc257476f9aac8d04d75a8036d412caa8f7d515
dir: /home/lcd.asm/
DisableLCD:: xor a ldh [rIF], a ldh a, [rIE] ld b, a res 0, a ldh [rIE], a .wait ldh a, [rLY] cp LY_VBLANK jr nz, .wait ldh a, [rLCDC] and $ff ^ rLCDC_ENABLE_MASK ldh [rLCDC], a ld a, b ldh [rIE], a ret EnableLCD:: ldh a, [rLCDC] set rLCDC_ENABLE, a ldh [rLCDC], a ret