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-bounces at classiccmp.org> on behalf of william degnan
<billdegnan at 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 <billdegnan at 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