KEYPAD

4/10

The keypad code is in the file constant.asm as follows:

.keypad

DC.B

$0E,$0E,$1

;PC0PA0

DC.B

$0E,$0D,$2

;PC0PA1

DC.B

$0E,$0B,$3

;PC0PA2

DC.B

$0E,$07,$F

;PC0PA3

DC.B

$0D,$0E,$4

;PC1PA0

DC.B

$0D,$0D,$5

;PC1PA1

DC.B

$0D,$0B,$6

;PC1PA2

DC.B

$0D,$07,$E

;PC1PA3

DC.B

$0B,$0E,$7

;PC2PA0

DC.B

$0B,$0D,$8

;PC2PA1

DC.B

$0B,$0B,$9

;PC2PA2

DC.B

$0B,$07,$D

;PC2PA3

DC.B

$07,$0E,$A

;PC3PA0

DC.B

$07,$0D,$0

;PC3PA1

DC.B

$07,$0B,$B

;PC3PA2

keypad_top

DC.B

$07,$07,$C

;PC3PA3