From owner-freebsd-hackers Mon Jan 7 13:22:16 2002 Delivered-To: freebsd-hackers@freebsd.org Received: from mail11.speakeasy.net (mail11.speakeasy.net [216.254.0.211]) by hub.freebsd.org (Postfix) with ESMTP id 3F68837B404 for ; Mon, 7 Jan 2002 13:22:13 -0800 (PST) Received: (qmail 1643 invoked from network); 7 Jan 2002 21:22:12 -0000 Received: from unknown (HELO laptop.baldwin.cx) ([64.81.54.73]) (envelope-sender ) by mail11.speakeasy.net (qmail-ldap-1.03) with SMTP for ; 7 Jan 2002 21:22:12 -0000 Message-ID: X-Mailer: XFMail 1.4.0 on FreeBSD X-Priority: 3 (Normal) Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 8bit MIME-Version: 1.0 In-Reply-To: Date: Mon, 07 Jan 2002 13:21:41 -0800 (PST) From: John Baldwin To: John Baldwin Subject: Re: Tell gcc I have a i686 Cc: "Matthew D. Fuller" , freebsd-hackers@FreeBSD.org, Stephen Montgomery-Smith Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG On 07-Jan-02 John Baldwin wrote: > Ok. This isn't 686 specific at all. However, one optimization might be to > get rid of the xorl, and use 'addl' for the first instruction instead of > adcl. > Anyways, If I were you, I would do it via a series of rcl (rotate through > carry > left, it shits in the carry flag instead of 0), thus I would do: Erm, it shifts in the carry flag. CPU's usually don't go around abusing their flags like that. :-P -- John Baldwin <>< http://www.FreeBSD.org/~jhb/ "Power Users Use the Power to Serve!" - http://www.FreeBSD.org/ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message