Programs larger than real memory on an 80286 ???
Brian Chapman
chapman at sco.COM
Wed Sep 14 04:10:33 AEST 1988
In article <1988Sep11.222005.14450 at gpu.utcs.toronto.edu> woods at gpu.utcs.Toronto.EDU (Greg Woods) writes:
< Mr. Geers' gripe is a legitimate one. Apparently the 80286 has been able to
< support virtual memory systems, yet the 80286 OS designers chose to leave it
< out. I would be interested in hearing why.
I asked the same question about 2 years ago when I read that
same section of the 80286 chip book. I was told that there
was a chip bug where not all the instructions were restartable
when you got a "segment not present" fault.
I cannot be more exact that this. I do not know which instructions
are not restartable and I have never seen anything in writting from
Intel admitting this error.
--
Pay no attention to the man behind the curtain.
Brian Chapman uunet!sco!chapman UNIX Development
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