From: Andrew Simmons <andrew@mbmnz.co.nz>
To: 9fans@cse.psu.edu
Subject: Re: [9fans] Virtual memory & paging
Date: Mon, 4 Feb 2002 11:36:40 +1300 [thread overview]
Message-ID: <3.0.6.32.20020204113640.0099aee0@pop3.clear.net.nz> (raw)
In-Reply-To: <cba18aad0ca2f22feff7d5cc1e46b9e5@plan9.bell-labs.com>
At 16:53 3/02/2002 -0500, you wrote:
>Virtual memory covers any memory that isn't laid out
>exactly as it seems to an executing program, i.e., that
>there exists some mapping between addresses as seen by the
>execution unit and those on the bus to physical memory.
>
I hope this isn't too dumb a question, but given a sufficiently large
physical memory, what would be the advantage of anything other than a one
to one mapping of execution unit and physical addresses?
>And of course there is the even earlier technique of overlays.
I wish you hadn't mentioned those. I'd almost managed to forget about them.
next prev parent reply other threads:[~2002-02-03 22:36 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-02-03 21:53 presotto
2002-02-03 22:36 ` Andrew Simmons [this message]
-- strict thread matches above, loose matches on Subject: below --
2002-02-15 14:32 Richard Uhtenwoldt
2002-02-16 21:56 ` Ronald G Minnich
2002-02-05 10:57 geoff
2002-02-05 11:37 ` Boyd Roberts
2002-02-05 14:01 ` david presotto
2002-02-04 11:03 Fco.J.Ballesteros
2002-02-04 10:59 forsyth
2002-02-04 10:38 geoff
2002-02-04 11:16 ` Boyd Roberts
2002-02-04 11:45 ` Boyd Roberts
2002-02-04 17:10 ` Andrew Simmons
2002-02-05 11:17 ` Boyd Roberts
2002-03-30 4:26 ` Richard Maxwell Underwood
2002-02-05 9:53 ` Thomas Bushnell, BSG
2002-02-05 16:06 ` Ronald G Minnich
2002-02-04 10:30 forsyth
2002-02-03 23:08 geoff
2002-02-03 20:26 ` Andrew Simmons
2002-02-04 16:15 ` Ronald G Minnich
2002-02-04 6:21 ` Richard Uhtenwoldt
2002-02-03 21:21 rob pike
2002-02-04 21:46 ` skipt
2002-02-04 22:11 ` Ronald G Minnich
[not found] ` <Pine.LNX.4.33.0202041510540.4327-100000@snaresland.acl.lan l.gov>
2002-02-05 1:30 ` skipt
2002-02-05 15:32 ` Ronald G Minnich
2002-02-03 21:12 andrey mirtchovski
2002-02-03 21:01 Andrew Simmons
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