From owner-freebsd-questions@FreeBSD.ORG Fri Mar 18 01:15:01 2011 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 3558A106566C for ; Fri, 18 Mar 2011 01:15:01 +0000 (UTC) (envelope-from perrin@apotheon.com) Received: from oproxy1-pub.bluehost.com (oproxy1-pub.bluehost.com [66.147.249.253]) by mx1.freebsd.org (Postfix) with SMTP id EE24A8FC15 for ; Fri, 18 Mar 2011 01:15:00 +0000 (UTC) Received: (qmail 15341 invoked by uid 0); 18 Mar 2011 01:15:00 -0000 Received: from unknown (HELO box543.bluehost.com) (74.220.219.143) by oproxy1.bluehost.com.bluehost.com with SMTP; 18 Mar 2011 01:15:00 -0000 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=default; d=apotheon.com; h=Date:From:To:Subject:Message-ID:Mail-Followup-To:References:Mime-Version:Content-Type:Content-Disposition:In-Reply-To:User-Agent:X-Identified-User; b=ApL/C4HqmdIeN8JKE55QIpr0yWK0pWNSYNgoYkr0jvSvI8tWiPRwol2FYXwuzKfnTaOz0zR1kSt1rsq/gb388q3gL5riojzV/KgXqXTAGANMCdjGC94WFrq77UcKS/cS; Received: from c-24-8-180-234.hsd1.co.comcast.net ([24.8.180.234] helo=kukaburra.hydra) by box543.bluehost.com with esmtpsa (TLSv1:AES256-SHA:256) (Exim 4.69) (envelope-from ) id 1Q0OHL-0004tn-Gj for freebsd-questions@freebsd.org; Thu, 17 Mar 2011 19:15:00 -0600 Received: by kukaburra.hydra (sSMTP sendmail emulation); Thu, 17 Mar 2011 19:03:18 -0600 Date: Thu, 17 Mar 2011 19:03:18 -0600 From: Chad Perrin To: freebsd-questions@freebsd.org Message-ID: <20110318010318.GA16640@guilt.hydra> Mail-Followup-To: freebsd-questions@freebsd.org References: <20110317213336.GF10069@ece.pdx.edu> <20110318003037.GB16316@guilt.hydra> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="OgqxwSJOaUobr8KG" Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.4.2.3i X-Identified-User: {2737:box543.bluehost.com:apotheon:apotheon.org} {sentby:smtp auth 24.8.180.234 authed with ren@apotheon.org} Subject: Re: How to tell whether CPU supports x64? X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 18 Mar 2011 01:15:01 -0000 --OgqxwSJOaUobr8KG Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Thu, Mar 17, 2011 at 07:54:13PM -0500, Adam Vande More wrote: > On Thu, Mar 17, 2011 at 7:30 PM, Chad Perrin wrote: >=20 > > . . . or maybe it is a 64 bit CPU that is not x86_64/amd64 compatible. > > Do IA-64 (Itanium), IBM POWER, and SPARC 64 bit processors use the same > > Long Mode functionality? > > >=20 > No, it is a function of it's ancestry, real mode, protected mode(16 & 32), > and long mode. Completely 64 bit native architectures like IA-64 have no > need for such tricks, That's what I thought -- I just wanted to be sure before committing myself to a statement to that effect, since CPU arhictectures are not my specialty by any stretch of the imagination. --=20 Chad Perrin [ original content licensed OWL: http://owl.apotheon.org ] --OgqxwSJOaUobr8KG Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.14 (FreeBSD) iEYEARECAAYFAk2Cr1YACgkQ9mn/Pj01uKX+RACfWyopPvzPRP3xTlp7JXi6B8fU C70AoNf+f0LhT6wJUldgqHwGGCSxGlDJ =TLCc -----END PGP SIGNATURE----- --OgqxwSJOaUobr8KG--