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Mail Archives: pgcc/1999/03/10/20:35:44

Date: Wed, 10 Mar 1999 17:22:12 -0700 (MST)
From: "Dmitri A. Sergatskov" <dima AT coffee DOT phys DOT unm DOT edu>
To: "'pgcc AT delorie DOT com'" <pgcc AT delorie DOT com>
Subject: Re: AMDK6/ PPro instructions
In-Reply-To: <19990310232019.J24287@cerebro.laendle>
Message-ID: <Pine.LNX.4.04.9903101719240.16135-100000@coffee.phys.unm.edu>
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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)

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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)

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