From owner-freebsd-questions@FreeBSD.ORG Fri Mar 18 04:23:30 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 2373D106564A for ; Fri, 18 Mar 2011 04:23:30 +0000 (UTC) (envelope-from prvs=0051aff727=johnl@iecc.com) Received: from gal.iecc.com (gal.iecc.com [64.57.183.53]) by mx1.freebsd.org (Postfix) with ESMTP id AE5068FC08 for ; Fri, 18 Mar 2011 04:23:29 +0000 (UTC) Received: (qmail 42058 invoked from network); 18 Mar 2011 03:45:01 -0000 Received: from mail1.iecc.com (64.57.183.56) by mail1.iecc.com with QMQP; 18 Mar 2011 03:45:01 -0000 DKIM-Signature: v=1; a=rsa-sha256; c=simple; d=iecc.com; h=date:message-id:from:to:subject:in-reply-to:cc:mime-version:content-type:content-transfer-encoding:vbr-info; s=f9a0.4d82d800.k1103; i=johnl@user.iecc.com; bh=8NfItswEW464CyNcrwdM66uZt6IqaFd8MYVge61dzH8=; b=eORNbkMS/rZytFjzbl5dRFVbU4ZiEzogHjtR3E5nEdK0Nkvh3ZXd7mNV3iNt7CftmSadmO/Y7TEs43BV+Nc5XWH1p8MPH4ZG9QHBB4onYxT2KFbuYU7F3W6B3N24/1MHXvfCFxC9kqmPPy8A3xP8cSIKsgAk2sxRCRHOVA5pYGA= VBR-Info: md=iecc.com; mc=all; mv=dwl.spamhaus.org Date: 18 Mar 2011 03:56:48 -0000 Message-ID: <20110318035648.63903.qmail@joyce.lan> From: John Levine To: freebsd-questions@freebsd.org In-Reply-To: <20110318003037.GB16316@guilt.hydra> Organization: X-Headerized: yes Mime-Version: 1.0 Content-type: text/plain; charset=utf-8 Content-transfer-encoding: 7bit Cc: perrin@apotheon.com 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 04:23:30 -0000 >> yes that is correct, LM stands for Long Mode which indicates amd64 support. >> If your CPU doesn't list it, it's either a 32 bit only CPU, or it's a bug. > >. . . 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? This processor is currently running IA32 code. If you know any dual mode IA32/SPARC chips, I'd be most interested to hear about them. R's, John