Posted By
Csabo
on 2004-05-30
09:34:02
|  Re: Keyboard handling
The keyboard matrix is also here: [ link ]. A basic routine that would wait until space is pressed would be:
*
LDA #$7F ; Check column 7
STA $FD30 ; Keyboard Matrix
STA $FF08 ; Keyboard Latch
LDA $FF08 ; Keyboard Latch
AND #$10 ; Query keyboard for "Space"
BNE *
|
