diff options
Diffstat (limited to 'src-68k/input')
| -rw-r--r-- | src-68k/input/joypad.68k | 43 |
1 files changed, 0 insertions, 43 deletions
diff --git a/src-68k/input/joypad.68k b/src-68k/input/joypad.68k deleted file mode 100644 index f33d000..0000000 --- a/src-68k/input/joypad.68k +++ /dev/null @@ -1,43 +0,0 @@ -;**************************************************************************** -; InitJoypad -; Initializes the joypad -;**************************************************************************** - -InitJoypad: - move.b #$40, ($A10009) ; Initialize I/O ports - move.b #$40, ($A10003) - move.w #0, (RAM_JoyHold) ; Initialize status - rts ; End of subroutine - -;**************************************************************************** -; ReadJoypad -; Reads the joypad status -;**************************************************************************** - -ReadJoypad: - lea ($A10003), a6 ; I/O data port - - move.b #$40, (a6) ; Read D-pad, B and C - nop - nop - move.b (a6), d7 - move.b #$00, (a6) ; Read A and Start - nop - nop - move.b (a6), d6 - - and.b #$3F, d7 ; Process input - and.b #$30, d6 - add.b d6, d6 - add.b d6, d6 - or.b d6, d7 - not.b d7 - - lea (RAM_JoyHold), a6 ; Store new joypad status - move.b (a6), d6 - move.b d7, (a6)+ - not.b d6 - and.b d6, d7 - move.b d7, (a6) - - rts ; End of subroutine |