Re: Bitfield instructions--a good idea?

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Article #10399

#10399

From: Sean Eric Fagan
Date: Tue, 23 Apr 1991 05:36

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In article <PUWA8R4@xds13.ferranti.com> peter@ficc.ferranti.com (peter da silva) writes:
>Wouldn't this tend to be a cache-basher? Particularly a problem when you're
>already bashing the cache with the bitmap anyway?

Perhaps that's where a 'don't cache' attribute on a load/store might be
useful...  You could probably do it now by having telling the OS to not
cache the page your data are in (although that won't work on all systems).

-- 
Sean Eric Fagan  | "I made the universe, but please don't blame me for it;
sef@kithrup.COM  |  I had a bellyache at the time."
-----------------+           -- The Turtle (Stephen King, _It_)
Any opinions expressed are my own, and generally unpopular with others.

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References: <1991Apr15.193425.3436@waikato.ac.nz> <SPOT.91Apr18123711@WOOZLE.GRAPHICS.CS.CMU.EDU> <PUWA8R4@xds13.ferranti.com>

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Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!uunet!kithrup!sef
From: sef@kithrup.COM (Sean Eric Fagan)
Newsgroups: comp.arch
Subject: Re: Bitfield instructions--a good idea?
Message-ID: <1991Apr23.053619.13474@kithrup.COM>
Date: 23 Apr 91 05:36:19 GMT
References: <1991Apr15.193425.3436@waikato.ac.nz> <SPOT.91Apr18123711@WOOZLE.GRAPHICS.CS.CMU.EDU> <PUWA8R4@xds13.ferranti.com>
Organization: Kithrup Enterprises, Ltd.
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