When I first got my IMSAI, I had not documents. Many of the jumpers were missing so I had to improvise. I had to write my own console in
so I chose a bit for the input buffer ready. Of course, it was a different bit than every one else uses. I run CP/M on it so my disgrace is berried in the low level code. I've been meaning to patch it but then I'd have to modify all my boot disk. I guess, as long as it continues to work fine, what the heck. Maybe adding a second jumper on is the trick. Dwight ________________________________ From: cctech <cctech-boun...@classiccmp.org> on behalf of william degnan <billdeg...@gmail.com> Sent: Tuesday, January 10, 2017 10:30:19 AM To: General Discussion: On-Topic Posts Subject: Re: Boot Loader for 3P+S on IMSAI On Tue, Jan 10, 2017 at 1:30 PM, william degnan <billdeg...@gmail.com> wrote: > > > I believe this image is set to cause the 3P+S to act like a 2SIO card for > BASIC. NOTE: It's set for a 20 mA current loop Teletype. You're not > using a teletype, so ignore related jumpers (EIA vs. 20mA current > loop)...the rest should be correct for what you're trying to do. > > b > > > http://www.vintagecomputer.net/browse_thread.cfm?id=633