[Coco] Re: PIA keyboard input?

[Gene Heskett]

On Sunday 07 December 2003 15:23, peak at mail.polarcomm.com wrote:
>Since "POLCAT's" scan routine already does this why do you
>want to do it directly? You could read the keyboard rollover
>table from low ram instead.

This is making the assumption that your program still allows basic to 
run the POLCAT routine.  If your program is assembly, you'll need to 
do that yourself as basic won't have any control over the machine if 
you don't.

> If you wanted to use the PIA for
>other things besides the keyboard then perhaps you should
>interface another PIA to your coco. Checkout old articles
>from rainbow magazine about building an eprom programmer for
>the coco. Some of these articles use 6821 PIA's and some use
>other PIO chips like Intels 8255PPI. One article I saw even
>used a 6522VIA.

-- 
Cheers, Gene
AMD K6-III at 500mhz 320M
Athlon1600XP at 1400mhz  512M
99.22% setiathome rank, not too shabby for a WV hillbilly
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Copyright 2003 by Maurice Eugene Heskett, all rights reserved.