ref: aa334dc5b9ac6ed4ecfd61429c0a1da7f8a8d262
dir: /home/lcd.asm/
; LCD handling Unreferenced_Function547:: ld a, [hLCDCPointer] cp rSCX - $ff00 ret nz ld c, a ld a, [wLYOverrides] ld [$ff00+c], a ret LCD:: push af ld a, [hLCDCPointer] and a jr z, .done ; At this point it's assumed we're in WRAM bank 5! push bc ld a, [rLY] ld c, a ld b, HIGH(wLYOverrides) ld a, [bc] ld b, a ld a, [hLCDCPointer] ld c, a ld a, b ld [$ff00+c], a pop bc .done pop af reti DisableLCD:: ; Turn the LCD off ; Don't need to do anything if the LCD is already off ld a, [rLCDC] bit rLCDC_ENABLE, a ret z xor a ld [rIF], a ld a, [rIE] ld b, a ; Disable VBlank res 0, a ; vblank ld [rIE], a .wait ; Wait until VBlank would normally happen ld a, [rLY] cp LY_VBLANK + 1 jr nz, .wait ld a, [rLCDC] and $ff ^ (1 << rLCDC_ENABLE) ld [rLCDC], a xor a ld [rIF], a ld a, b ld [rIE], a ret EnableLCD:: ld a, [rLCDC] set rLCDC_ENABLE, a ld [rLCDC], a ret