diff options
Diffstat (limited to 'engine')
| -rw-r--r-- | engine/readjoypad.asm | 31 |
1 files changed, 0 insertions, 31 deletions
diff --git a/engine/readjoypad.asm b/engine/readjoypad.asm deleted file mode 100644 index 96897455..00000000 --- a/engine/readjoypad.asm +++ /dev/null @@ -1,31 +0,0 @@ -ReadJoypad_:: ; c000 (3:4000) -; Poll joypad input. -; Unlike the hardware register, button -; presses are indicated by a set bit. - - ld a, 1 << 5 ; select direction keys - ld c, 0 - - ld [rJOYP], a - rept 6 - ld a, [rJOYP] - endr - cpl - and %1111 - swap a - ld b, a - - ld a, 1 << 4 ; select button keys - ld [rJOYP], a - rept 10 - ld a, [rJOYP] - endr - cpl - and %1111 - or b - - ld [hJoyInput], a - - ld a, 1 << 4 + 1 << 5 ; deselect keys - ld [rJOYP], a - ret |