AT&T 6300+ ROM BIOS problem
Barry W. Kort
bwk at mbunix.mitre.org
Thu Jun 1 04:56:04 AEST 1989
In article <3134 at sun.soe.clarkson.edu> dean at sun.soe.clarkson.edu
(Dean Swan) responds to my earlier plea for help on DigiTalk
SmallTalk V/286, which does not run on my AT&T PC 6300 Plus:
> - First, It sounds like you're using a something less than legitimate
> copy. If I'm wrong, ignore this comment. If not, have the boss buy
> you another copy.
By now we have bought some half-dozen copies. I assure you DigiTalk
isn't losing money on us.
> - Smalltalk V/286 can switch between protected and real modes in a
> couple of different ways. The master disks come with a program
> to help you determine the way that works best on your machine.
> If the default method doesn't work which sounds like your problem,
> then you have to specify a command line switch to use the alternate
> method.
Yes, I tried all 4 combinations of the /S (shutdown) and /T (restart)
switches. Machs nix.
> - Also, depending on what else you use your extened memory for, you
> may have to set some other command line switches to tell Smalltalk
> to stay out of certain areas of extended memory. This is explained
> in an appendix of the manual.
I tried the /X, /D/ and /U command line options to keep V/286 from
trying to access the extra 384K on the motherboard, which, for reasons
unbeknownst to me, are assigned noncontiguously to the high-address
end of the machine's memory address limit. I'm now considering a
suggestion to rip out the extra 384K to see if that is what's tripping
up V/286.
> Hope this helps some!
I don't wish to sound unappreciative. I do thank you for your advice.
I'm still looking for an existence proof that V/286 can be made to
run on the 6300 Plus, before I continue with more exploratory
neurosurgery on the motherboard.
--Barry Kort
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