From owner-freebsd-hackers Fri Jan 16 19:39:57 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id TAA22717 for hackers-outgoing; Fri, 16 Jan 1998 19:39:57 -0800 (PST) (envelope-from owner-freebsd-hackers@FreeBSD.ORG) Received: from kalypso.cybercom.net (kalypso.cybercom.net [209.21.136.5]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id TAA22696 for ; Fri, 16 Jan 1998 19:39:38 -0800 (PST) (envelope-from ksmm@cybercom.net) Received: from localhost (ksmm@localhost) by kalypso.cybercom.net (8.8.7/8.8.7) with SMTP id WAA05855; Fri, 16 Jan 1998 22:38:05 -0500 (EST) Date: Fri, 16 Jan 1998 22:38:02 -0500 (EST) From: The Classiest Man Alive X-Sender: ksmm@kalypso.cybercom.net To: Satoshi Asami cc: freebsd-hackers@FreeBSD.ORG Subject: Re: what does MMX mean? In-Reply-To: <199801160146.RAA15220@bubble.didi.com> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk On Thu, 15 Jan 1998, Satoshi Asami wrote: : * The normal integer and floating-point datapaths are, i believe, : * unaffected. : : The MMX registers are aliases of regular FP registers. (They did not : want to add any new registers or flags -- so the OS doesn't need to be : aware of new MMX chips and the applications can still use them.) So : it won't help if you want to do a lot of FP operations intermixed with : MMX operations. Is this true for the Pentium II as well? K.S.