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Date: Sun, 23 Feb 2003 17:53:25 -0800 (PST)
From: dean gaudet <dean-list-linux-kernel@arctic.org>
To: Kenneth Johansson <ken@kenjo.org>
cc: Alan Cox <alan@lxorguk.ukuu.org.uk>,
       "Martin J. Bligh" <mbligh@aracnet.com>,
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Subject: Re: Minutes from Feb 21 LSE Call
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On Sun, 24 Feb 2003, Kenneth Johansson wrote:

> If you really do mean compressed cache I don't think anybody has done
> that for real.

people are doing this *for real* -- it really depends on what you define
as compressed.

ARM thumb is definitely a compression function for code.

x86 native instructions are compressed compared to the RISC-like micro-ops
which a processor like athlon, p3, and p4 actually execute.  for similar
operations, an x86 would average probably 1.5 bytes to encode what a
32-bit RISC would need 4 bytes to encode.

-dean
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