Path: utzoo!yunexus!geac!syntron!jtsv16!uunet!lll-winken!lll-lcc!ames!pasteur!ucbvax!hplabs!hpda!hpcupt1!hpisoa1!vandys
From: vandys@hpisoa1.HP.COM (Andrew Valencia)
Newsgroups: comp.unix.microport
Subject: Re: Programs larger than real memory on an 80286 ???
Message-ID: <11190013@hpisoa1.HP.COM>
Date: 12 Sep 88 16:04:24 GMT
Article-I.D.: hpisoa1.11190013
References: <235@extro.ucc.su.oz>
Organization: Hewlett Packard, Cupertino
Lines: 11

>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.  Surely you all bought the Intel
>book I mentioned, I don't think I paid more than $20 dollars for it, and I
>was just a curious programmer.

    If memory serves (unlikely, but what the heck), there are generations of
the '286 which would corrupt certain registers when taking a "segment not
present" fault, thus making instruction restart impossible.  Perhaps someone
from Intel could give us the lineage of this bug (if any)?

					Andy