Date: Wed, 21 Mar 2001 09:25:43 -0500 From: "Matthew Emmerton" <matt@gsicomp.on.ca> To: "Brian Raiter" <breadbox@muppetlabs.com> Cc: <freebsd-hackers@freebsd.org> Subject: Re: gzip's custom i386 asm should be disabled Message-ID: <009d01c0b212$d0626a40$1200a8c0@gsicomp.on.ca> References: <20010320174630.B82004@gelatinous.com><017d01c0b1ab$df4be1b0$1200a8c0@gsicomp.on.ca><20010321114832.A31809@walton.maths.tcd.ie><006101c0b210$c400edf0$1200a8c0@gsicomp.on.ca> <200103211421.GAA07389@eidolon.muppetlabs.com>
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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. Serves me right for not looking at the patches (no thanks to my flaky cable connection.) My bad assumption that code optimized for 586/686 would be 586/686-specific. I'll go away now :) -- Matt Emmerton To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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