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authorRangi <35663410+Rangi42@users.noreply.github.com>2018-08-25 22:23:45 -0400
committerGitHub <noreply@github.com>2018-08-25 22:23:45 -0400
commit3eacab563d0e1ab5557c2443556a7a5e58d14cad (patch)
tree3d747166409fdc94f0fd1aa760693a7ee5bd2156 /home/lcd.asm
parent89681d231611938a791f4256e602c88c2f9aa3e1 (diff)
parentb2adcd6d6ff91efc764a6ecc65147be7b9cda9e8 (diff)
Merge pull request #555 from Rangi42/ldh
Use real labels for HRAM instead of constants, and the ldh instruction
Diffstat (limited to 'home/lcd.asm')
-rw-r--r--home/lcd.asm32
1 files changed, 16 insertions, 16 deletions
diff --git a/home/lcd.asm b/home/lcd.asm
index 7ea53d453..68edf9b0f 100644
--- a/home/lcd.asm
+++ b/home/lcd.asm
@@ -1,8 +1,8 @@
; LCD handling
Unreferenced_Function547::
- ld a, [hLCDCPointer]
- cp rSCX - $ff00
+ ldh a, [hLCDCPointer]
+ cp LOW(rSCX)
ret nz
ld c, a
ld a, [wLYOverrides]
@@ -11,18 +11,18 @@ Unreferenced_Function547::
LCD::
push af
- ld a, [hLCDCPointer]
+ ldh a, [hLCDCPointer]
and a
jr z, .done
; At this point it's assumed we're in WRAM bank 5!
push bc
- ld a, [rLY]
+ ldh a, [rLY]
ld c, a
ld b, HIGH(wLYOverrides)
ld a, [bc]
ld b, a
- ld a, [hLCDCPointer]
+ ldh a, [hLCDCPointer]
ld c, a
ld a, b
ld [$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