Use labels instead of constants for HRAM

Use explicit ldh instruction to access HRAM locations, don't rely on optimizing ld

home/lcd.asm

@@ -1,7 +1,7 @@
 ; LCD handling
 
 Unreferenced_Function547::
-	ld a, [hLCDCPointer]
+	ldh a, [hLCDCPointer]
 	cp rSCX - $ff00
 	ret nz
 	ld c, a
@@ -11,18 +11,18 @@ Unreferenced_Function547::
 
 LCD::
 	push af
-	ld a, [hLCDCPointer]
+	ldh a, [hLCDCPointer]
 	and a
 	jr z, .done
 
 ; At this point it's assumed we're in WRAM bank 5!
 	push bc
-	ld a, [rLY]
+	ldh a, [rLY]
 	ld c, a
 	ld b, HIGH(wLYOverrides)
 	ld a, [bc]
 	ld b, a
-	ld a, [hLCDCPointer]
+	ldh a, [hLCDCPointer]
 	ld c, a
 	ld a, b
 	ld [$ff00+c], a
@@ -36,37 +36,37 @@ DisableLCD::
 ; Turn the LCD off
 
 ; Don't need to do anything if the LCD is already off
-	ld a, [rLCDC]
+	ldh a, [rLCDC]
 	bit rLCDC_ENABLE, a
 	ret z
 
 	xor a
-	ld [rIF], a
-	ld a, [rIE]
+	ldh [rIF], a
+	ldh a, [rIE]
 	ld b, a
 
 ; Disable VBlank
 	res 0, a ; vblank
-	ld [rIE], a
+	ldh [rIE], a
 
 .wait
 ; Wait until VBlank would normally happen
-	ld a, [rLY]
+	ldh a, [rLY]
 	cp LY_VBLANK + 1
 	jr nz, .wait
 
-	ld a, [rLCDC]
+	ldh a, [rLCDC]
 	and $ff ^ (1 << rLCDC_ENABLE)
-	ld [rLCDC], a
+	ldh [rLCDC], a
 
 	xor a
-	ld [rIF], a
+	ldh [rIF], a
 	ld a, b
-	ld [rIE], a
+	ldh [rIE], a
 	ret
 
 EnableLCD::
-	ld a, [rLCDC]
+	ldh a, [rLCDC]
 	set rLCDC_ENABLE, a
-	ld [rLCDC], a
+	ldh [rLCDC], a
 	ret