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Date:      Wed, 21 Mar 2001 06:21:14 -0800
From:      Brian Raiter <breadbox@muppetlabs.com>
To:        "Matthew Emmerton" <matt@gsicomp.on.ca>
Cc:        "David Malone" <dwmalone@maths.tcd.ie>, "Aaron Smith" <aaron@mutex.org>, <freebsd-hackers@FreeBSD.ORG>, <jon@csua.berkeley.edu>
Subject:   Re: gzip's custom i386 asm should be disabled
Message-ID:  <200103211421.GAA07389@eidolon.muppetlabs.com>
In-Reply-To: <006101c0b210$c400edf0$1200a8c0@gsicomp.on.ca>
References:  <20010320174630.B82004@gelatinous.com> <017d01c0b1ab$df4be1b0$1200a8c0@gsicomp.on.ca> <20010321114832.A31809@walton.maths.tcd.ie> <006101c0b210$c400edf0$1200a8c0@gsicomp.on.ca>

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>>> I sure hope I'm not the only one with a "lab" of 4 FreeBSD
>>> machines that are all 486s or 586s.
>>
>> You may find that the 686 assembly is as fast on a 386/486/586 as
>> the old assembly is. Maybe you could test it and let the list know?
> 
> I was under the impression that the 586/686 code uses instructions
> that are not present on 386/486 machines, so I doubt that it would
> help.

Bite your tongue! The youngest instruction in my patches is movzx,
which was introduced with the 386.

b

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