From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 3645 invoked by alias); 7 Jan 2003 16:29:23 -0000 Mailing-List: contact gcc-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Archive: List-Post: List-Help: Sender: gcc-owner@gcc.gnu.org Received: (qmail 3589 invoked from network); 7 Jan 2003 16:29:21 -0000 Received: from unknown (HELO nile.gnat.com) (205.232.38.5) by 209.249.29.67 with SMTP; 7 Jan 2003 16:29:21 -0000 Received: by nile.gnat.com (Postfix, from userid 338) id CA365F28E5; Tue, 7 Jan 2003 11:29:08 -0500 (EST) To: dewar@gnat.com, mszick@goquest.com, velco@fadata.bg Subject: Re: An unusual Performance approach using Synthetic registers Cc: gcc@gcc.gnu.org, ja_walker@earthlink.net, lord@emf.net Message-Id: <20030107162908.CA365F28E5@nile.gnat.com> Date: Tue, 07 Jan 2003 17:19:00 -0000 From: dewar@gnat.com (Robert Dewar) X-SW-Source: 2003-01/txt/msg00354.txt.bz2 > The exchange (xchg) instruction was included in the original 80386. Actually this was on the 8086, it is one of the original instructions, of course that was not ia32 architecture :-)