Date:	Fri, 13 Sep 1996 01:21:11 -0700 (PDT)
From:	Samuel Vincent <svincent AT cs DOT sonoma DOT edu>
To:	Roger Cowley <cowley AT crab DOT rutgers DOT edu>
cc:	djgpp AT delorie DOT com
Subject:	Re: Pentium specific tweaks?
In-Reply-To:	<51ae28$rqk@crab.rutgers.edu>
Message-ID:	<Pine.GSO.3.94.960913011953.9921A-100000@zippy>
MIME-Version:	1.0

On 12 Sep 1996, Roger Cowley wrote:

> I'm in the middle of a massive optimization process, and I'm just
> curious as to whether or not there are...for lack of a better word,
> things(ie commands, switches, etc.) that can be used to speed up
> execution time on a Pentium CPU. 
> 
> I realize I'm probably barking up an imaginary tree, but just in case
> there is something out there that can help me, I'm asking.
> 
> The problem is that all the CPU documentation I have is for 486 and
> below, so I've got basically nothing on Pentium stuff.  Mind you, I'm
> not some hardware junkie, I'm talking fairly simplistic stuff here, no
> extremely elaborate assembley strategy to reduce branching or
> anything.
> 
> 
> Any tips would be greatly appreciated,
> Tony

Basically, I can tell you that for Pentiums, use floating point instead of
fixed point, and you ned to do some scheduling of opcodes for the
different pipelines, (or whatever they are called... ;)

-Sam

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