Article View: comp.arch
Article #3442Re: IBM PC prehistory
From: Bob Pendleton
Date: Wed, 17 Jan 1990 16:26
Date: Wed, 17 Jan 1990 16:26
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1373 bytes
From article <1990Jan16.055625.8255@esegue.segue.boston.ma.us>, by johnl@esegue.segue.boston.ma.us (John R. Levine):
> In article <380@bambam.UUCP> bpendlet@bambam.UUCP (Bob Pendleton) writes:
>>> I would suggest that an MMU is necessary for anything which wants to
>>> implement fork() while allowing two tasks to occupy memory at once.
>
>>My conclusion is that you've never heard of a relocating loader.
>
> Don't be so rude, he's right.
When I wrote that line it seemed perfectly OK. But rereading I see
that it IS rude as hell. I'm sorry. I did not mean to be rude.
I didn't mean to be wrong either. But I am. Since you cannot identify
(aliasing) every pointer created in a running program you can't adjust
the value of the pointers when you copy them.
Bob P.
--
Bob Pendleton, speaking only for myself.
UUCP Address: decwrl!esunix!bpendlet or utah-cs!esunix!bpendlet
X: Tools, not rules.
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!hellgate.utah.edu!uplherc!esunix!bambam!bpendlet From: bpendlet@bambam.UUCP (Bob Pendleton) Newsgroups: comp.arch Subject: Re: IBM PC prehistory Message-ID: <384@bambam.UUCP> Date: 17 Jan 90 16:26:38 GMT References: <1990Jan16.055625.8255@esegue.segue.boston.ma.us> Organization: Evans & Sutherland Computer Corp., Salt Lake City, Utah Lines: 23