From owner-freebsd-hackers Wed Mar 21 6:29: 5 2001 Delivered-To: freebsd-hackers@freebsd.org Received: from xena.gsicomp.on.ca (cr677933-a.ktchnr1.on.wave.home.com [24.43.230.149]) by hub.freebsd.org (Postfix) with ESMTP id B258A37B738 for ; Wed, 21 Mar 2001 06:29:02 -0800 (PST) (envelope-from matt@gsicomp.on.ca) Received: from hermes (hermes.gsicomp.on.ca [192.168.0.18]) by xena.gsicomp.on.ca (8.11.1/8.11.3) with SMTP id f2LERE591511; Wed, 21 Mar 2001 09:27:14 -0500 (EST) (envelope-from matt@gsicomp.on.ca) Message-ID: <009d01c0b212$d0626a40$1200a8c0@gsicomp.on.ca> From: "Matthew Emmerton" To: "Brian Raiter" Cc: References: <20010320174630.B82004@gelatinous.com><017d01c0b1ab$df4be1b0$1200a8c0@gsicomp.on.ca><20010321114832.A31809@walton.maths.tcd.ie><006101c0b210$c400edf0$1200a8c0@gsicomp.on.ca> <200103211421.GAA07389@eidolon.muppetlabs.com> Subject: Re: gzip's custom i386 asm should be disabled Date: Wed, 21 Mar 2001 09:25:43 -0500 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4133.2400 X-MimeOLE: Produced By Microsoft MimeOLE V5.50.4133.2400 Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG > >>> 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