1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
|
Pad_Button_Check:
PUSH AF
PUSH BC
LD A, $20
LD ($00), A
LD A, ($00)
LD C, A
LD A, $00
Pad_Button_Check.Right:
BIT 0, C
JR NZ =Pad_Button_Check.Left
LD A, $02
Pad_Button_Check.Left:
BIT 1, C
JR NZ =Pad_Button_Check.Up
LD A, $01
Pad_Button_Check.Up:
BIT 2, C
JR NZ =Pad_Button_Check.Down
LD A, $03
Pad_Button_Check.Down:
BIT 3, C
JR NZ =Pad_Button_Check.End
LD A, $04
Pad_Button_Check.End:
LD ($82), A
POP BC
POP AF
RET
|
