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; 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
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