Date: Wed, 7 Jul 1999 01:30:42 +0200
To: pgcc AT delorie DOT com
Subject: Re: K7 potentials
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In-Reply-To: <19990706172737.25638@atrey.karlin.mff.cuni.cz>; from Jan Hubicka on Tue, Jul 06, 1999 at 05:27:37PM +0200
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From: Marc Lehmann <pcg AT goof DOT com>
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On Tue, Jul 06, 1999 at 05:27:37PM +0200, Jan Hubicka wrote:
> Interesting trick to increase register file is used by Cyrix CPUs.
> They allow lock page of memory in cache and accesses are then af fast as to
> registers. This is not 100% replacement, but also quite crazy idea.

Its very slow as cache is much slower than registers, and I think this
feature is very poorly designed so its almost unusable in practise (nobody
uses it, btw).

> Best way to increase number of registers is to buy Ultrasparc anyway :)

Or an Merced (sorry, I meant E2k ;)

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