diff options
Diffstat (limited to 'engine/palettes.asm')
| -rwxr-xr-x | engine/palettes.asm | 46 |
1 files changed, 23 insertions, 23 deletions
diff --git a/engine/palettes.asm b/engine/palettes.asm index a9160d21..a325e0a3 100755 --- a/engine/palettes.asm +++ b/engine/palettes.asm @@ -328,10 +328,10 @@ SendSGBPacket: ; 71feb (1c:5feb) ld [$fff9],a ; send RESET signal (P14=LOW, P15=LOW) xor a - ld [$ff00],a + ld [rJOYP],a ; set P14=HIGH, P15=HIGH ld a,$30 - ld [$ff00],a + ld [rJOYP],a ;load length of packets (16 bytes) ld b,$10 .nextByte @@ -348,10 +348,10 @@ SendSGBPacket: ; 71feb (1c:5feb) ; else (if 0th bit is zero) set P14=LOW,P15=HIGH (send bit 0) ld a,$20 .next0 - ld [$ff00],a + ld [rJOYP],a ; must set P14=HIGH,P15=HIGH between each "pulse" ld a,$30 - ld [$ff00],a + ld [rJOYP],a ; rotation will put next bit in 0th position (so we can always use command ; "bit 0,d" to fetch the bit that has to be sent) rr d @@ -362,10 +362,10 @@ SendSGBPacket: ; 71feb (1c:5feb) jr nz,.nextByte ; send bit 1 as a "stop bit" (end of parameter data) ld a,$20 - ld [$ff00],a + ld [rJOYP],a ; set P14=HIGH,P15=HIGH ld a,$30 - ld [$ff00],a + ld [rJOYP],a xor a ld [$fff9],a ; wait for about 70000 cycles @@ -448,38 +448,38 @@ CheckSGB: ; 7209b (1c:609b) ld [$fff9], a ei call Wait7000 - ld a, [rJOYP] ; $ff0 + ld a, [rJOYP] and $3 cp $3 jr nz, .asm_720fd ld a, $20 - ld [rJOYP], a ; $ff0 - ld a, [rJOYP] ; $ff0 - ld a, [rJOYP] ; $ff0 + ld [rJOYP], a + ld a, [rJOYP] + ld a, [rJOYP] call Wait7000 call Wait7000 ld a, $30 - ld [rJOYP], a ; $ff0 + ld [rJOYP], a call Wait7000 call Wait7000 ld a, $10 - ld [rJOYP], a ; $ff0 - ld a, [rJOYP] ; $ff0 - ld a, [rJOYP] ; $ff0 - ld a, [rJOYP] ; $ff0 - ld a, [rJOYP] ; $ff0 - ld a, [rJOYP] ; $ff0 - ld a, [rJOYP] ; $ff0 + ld [rJOYP], a + ld a, [rJOYP] + ld a, [rJOYP] + ld a, [rJOYP] + ld a, [rJOYP] + ld a, [rJOYP] + ld a, [rJOYP] call Wait7000 call Wait7000 ld a, $30 - ld [rJOYP], a ; $ff0 - ld a, [rJOYP] ; $ff0 - ld a, [rJOYP] ; $ff0 - ld a, [rJOYP] ; $ff0 + ld [rJOYP], a + ld a, [rJOYP] + ld a, [rJOYP] + ld a, [rJOYP] call Wait7000 call Wait7000 - ld a, [rJOYP] ; $ff0 + ld a, [rJOYP] and $3 cp $3 jr nz, .asm_720fd |