From:	Ian D Romanick <idr AT cs DOT pdx DOT edu>
Message-Id:	<199703050241.SAA27408@sirius.cs.pdx.edu>
Subject:	Re: Loop unrolling: Don't bother
To:	tudor AT cam DOT org
Date:	Tue, 4 Mar 1997 18:41:40 -0800 (PST)
Cc:	djgpp AT delorie DOT com
In-Reply-To:	<331CEA79.77C1@cam.org> from "Tudor" at Mar 4, 97 07:37:29 pm
MIME-Version:	1.0

> MMX adds ~50 instructions to the processor to 'help' you with multimedia
> n stuff. Go to iNTEL to read more on it. Of course your programs have to
> be compiled using MMX instructions for the thingie to work :)

More importantly (to the general computing population), the MMX Pentiums
also have a larger code cache and a deep pipe line (6 stages instead of
5, but don't quote me on that...).  I beleive that the caches are now
16k, rather than only 8k.

-- 
"Government is like a baby. An alimentary canal with a big appetite at one
 end and no sense of responsibility at the other."
        -- Ronald Reagan
                      There is no responsibility at http://www.cs.pdx.edu/~idr

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