Date: Wed, 10 Mar 1999 17:22:12 -0700 (MST) From: "Dmitri A. Sergatskov" To: "'pgcc AT delorie DOT com'" Subject: Re: AMDK6/ PPro instructions In-Reply-To: <19990310232019.J24287@cerebro.laendle> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Reply-To: pgcc AT delorie DOT com X-Mailing-List: pgcc AT delorie DOT com X-Unsubscribes-To: listserv AT delorie DOT com Precedence: bulk On Wed, 10 Mar 1999, Marc Lehmann wrote: > On Wed, Mar 10, 1999 at 10:39:25AM -0500, Philip Long wrote: > > Will the K6 execute all instrcutions possible on a PII? > > > > ie If I compile something with -march=pentiumpro, will it run ok on > > Interesting question.. AFAIK, the AMD does implement the conditional move > instructions, but I'm not 100% sure. > FWIW: (http://www.uwsg.indiana.edu/hypermail/linux/kernel/9901.1/0155.html) **************--begin--******************* Michael Meissner (meissner AT cygnus DOT com) Thu, 7 Jan 1999 09:21:18 -0500 (-------deleted----------) At the level of user instructions, the (older?) K6 don't support CMOV and FCMOV (Pentium-{Pro,II} conditional move instructions). -- Michael Meissner, Cygnus Solutions (Massachusetts office) 4th floor, 955 Massachusetts Avenue, Cambridge, MA 02139, USA meissner AT cygnus DOT com, 617-354-5416 (office), 617-354-7161 (fax) ****************--end--****************