From owner-freebsd-questions@FreeBSD.ORG Fri Mar 18 00:54:15 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 313FD1065675 for ; Fri, 18 Mar 2011 00:54:15 +0000 (UTC) (envelope-from amvandemore@gmail.com) Received: from mail-fx0-f54.google.com (mail-fx0-f54.google.com [209.85.161.54]) by mx1.freebsd.org (Postfix) with ESMTP id BB09B8FC15 for ; Fri, 18 Mar 2011 00:54:14 +0000 (UTC) Received: by fxm11 with SMTP id 11so3795750fxm.13 for ; Thu, 17 Mar 2011 17:54:13 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:in-reply-to:references:date :message-id:subject:from:to:cc:content-type; bh=iIIVUYixk+64EuoAW7FmIvsXzQc4NVS9gD/ghqBgYzQ=; b=gQ+Cn6KxtABaI5IFw39dIaL4iOzQYj2rplhxvO6Gjj8Zr9mka8QJQR7nAHzHNCWmYC 48ESju9DM0PH9sX+EXQyIWb45KNdWbUevc8xU1gXi/ssbgYvzsfrKGJdBRnRMhvVlDZ1 1jcYLl5K0su76JGij5YQQP1nATGzmMbpUk9ZQ= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; b=CJ4TC5xeNeFfgJlGjkY+wp+Ud8JZjTjWBtODiCIG8EeEoEiKsOKFUTUe6o2d0QIN5Q N4f3LIHznbfUYU+XUK5mSIJ1ZD+VVu8RjWqY3E9iCCXQW9MtubOkX2+BMZCpVlLvL2oM wwpwKB3MCTgFocYEsfVdFjL3T2u/mtaXLwW2g= MIME-Version: 1.0 Received: by 10.223.1.76 with SMTP id 12mr500527fae.118.1300409653368; Thu, 17 Mar 2011 17:54:13 -0700 (PDT) Received: by 10.223.59.7 with HTTP; Thu, 17 Mar 2011 17:54:13 -0700 (PDT) In-Reply-To: <20110318003037.GB16316@guilt.hydra> References: <20110317213336.GF10069@ece.pdx.edu> <20110318003037.GB16316@guilt.hydra> Date: Thu, 17 Mar 2011 19:54:13 -0500 Message-ID: From: Adam Vande More To: freebsd-questions@freebsd.org Content-Type: text/plain; charset=ISO-8859-1 X-Content-Filtered-By: Mailman/MimeDel 2.1.5 Cc: Chad Perrin 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 00:54:15 -0000 On Thu, Mar 17, 2011 at 7:30 PM, Chad Perrin wrote: > . . . 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? > 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, -- Adam Vande More