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Date: Wed, 24 Sep 2008 08:17:24 +0200
From: Simon Marechal <>
Subject: Re: quite fast MD5 hashing implementation

Marti Raudsepp wrote:
> On Tue, Sep 23, 2008 at 4:22 PM, Simon Marechal <> wrote:
>> It is a lot faster than everything I previously saw. I suppose he achieves
>> this speed by:
>> * reversing the last round
>> * working a lot on instruction/register scheduling
> Probably also taking advantage of the 8 extra XMM registers in 64-bit mode.

Indeed, but as you can see from his results, it is not such an important 
improvement. This means the x86 code is quite good regarding instruction 

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