[Simh] MSU BASIC - docs and apparent simh bug?

Tim Riker Tim at Rikers.org
Tue Feb 26 15:57:53 EST 2008


With Dave's help, I've gotten MSU BASIC up and running under simh. I'm
putting up some documentation and links here:

http://rikers.org/wiki/MsuBasic

There are some issues:

#1 - simh does not support multiple 12531C cards in a system

We work around this by stubbing out all logging so we can run one
terminal on the normal tty.

#2 - simh aborts a ways into a normal run. I am not yet convinced that
this is a simh issue, but it seems very likely to be as trivial code
snippets still cause the same issue, and presumably this would have been
fixed if it happened on real hardware.

I will try this out on real hardware and report back soon.

This simple example dies:

10 PRINT "HELLO WORLD! ";
20 GOTO 10
30 END

it ran for a while and then aborted with:

Indirect address loop, P: 37003 (STA 1,I)

Dave has an idea what the issue might be.

See the wiki page for updates.
-- 
Tim Riker - http://Rikers.org/ - TimR at Debian.org
Embedded Linux Technologist - http://eLinux.org/
BZFlag maintainer - http://BZFlag.org/ - for fun!



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