[Coco] PIA keyboard input?

[James Dessart]

On 7-Dec-03, at 3:23 PM, peak wrote:

> Since "POLCAT's" scan routine already does this why do you
> want to do it directly?

I'm trying to bypass the BASIC ROMs entirely, writing my own IO 
routines and such.

It seems I actually need to do a ROL on the address directly, as simply 
outputting the desired sequence gives me nothing.  So if I output 
"10111111" to the column address, I get all 1's from row address.  Is 
there some other way to do it than ROLing the column address with a 0?

James