From owner-freebsd-hackers Thu Dec 5 21:21:13 2002 Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 545B737B401 for ; Thu, 5 Dec 2002 21:21:12 -0800 (PST) Received: from hotmail.com (f7.pav0.hotmail.com [64.4.33.7]) by mx1.FreeBSD.org (Postfix) with ESMTP id 1301E43EB2 for ; Thu, 5 Dec 2002 21:21:12 -0800 (PST) (envelope-from oykai@msn.com) Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Thu, 5 Dec 2002 21:21:11 -0800 Received: from 210.74.136.33 by pv0fd.pav0.hotmail.msn.com with HTTP; Fri, 06 Dec 2002 05:21:11 GMT X-Originating-IP: [210.74.136.33] From: "kai ouyang" To: hackers@FreeBSD.org Subject: One GNU ASM syntax problem Date: Fri, 06 Dec 2002 13:21:11 +0800 Mime-Version: 1.0 Content-Type: text/plain; charset=gb2312; format=flowed Message-ID: X-OriginalArrivalTime: 06 Dec 2002 05:21:11.0871 (UTC) FILETIME=[4A5BE4F0:01C29CE7] 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 Hi,everybody, I have one question about GNU ASM syntax. As I know: __asm __volatile( "instructions" :output :input :exception); In Linux, the restriction of output are "=m","=a", etc. But I found in FreeBSD, there are "=m" and "+m". I do not know the difference between "+" and "=". why? Thank you! Best Regards Ouyang Kai _________________________________________________________________ 享用世界上最大的电子邮件系统— MSN Hotmail。 http://www.hotmail.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message