[Coco] [Color Computer] CoCo Key Press routine

[Kevin Zee]

Take a peek in Color Basic Unravelled... You can check out the keyboard 
routine - it is at 0xA1C1...

Alan wrote:

>

> Hi All,

>

> Can someone tell me how to read a key from the keyboard on a Coco in

> 6809 assembly language, without using ROM routines? I know I can call a

> routine at $ADFB and it will wait for a keypress. How can I do the same

> exact thing without calling a ROM routine? I know it has something to

> do with scanning the PIA input lines. Any help would be appreciated!

>

>