From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 20795 invoked by alias); 20 May 2005 18:15:19 -0000 Mailing-List: contact gdb-help@sources.redhat.com; run by ezmlm Precedence: bulk List-Subscribe: List-Archive: List-Post: List-Help: , Sender: gdb-owner@sources.redhat.com Received: (qmail 20578 invoked from network); 20 May 2005 18:15:16 -0000 Received: from unknown (HELO nevyn.them.org) (66.93.172.17) by sourceware.org with SMTP; 20 May 2005 18:15:16 -0000 Received: from drow by nevyn.them.org with local (Exim 4.50) id 1DZC1j-0000lH-QB; Fri, 20 May 2005 14:15:15 -0400 Date: Fri, 20 May 2005 18:15:00 -0000 From: Daniel Jacobowitz To: Dan Shearer Cc: gdb@sources.redhat.com Subject: Re: [discuss] Support for reverse-execution Message-ID: <20050520181515.GC2499@nevyn.them.org> Mail-Followup-To: Dan Shearer , gdb@sources.redhat.com References: <20050516174649.GM19642@erizo.shearer.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20050516174649.GM19642@erizo.shearer.org> User-Agent: Mutt/1.5.8i X-SW-Source: 2005-05/txt/msg00227.txt.bz2 On Tue, May 17, 2005 at 03:16:49AM +0930, Dan Shearer wrote: > Around 1999 Cygnus' GPL SID simulator could execute backwards. > Development on reversibility didn't continue so I'm told because it was > seen as "party tricks". Besides SID had flexible hardware watchpoints > like "stop the CPU when an ethernet interrupt is fired" which reduced > the need to search for a particular point in execution for SID's > intended users. Does anyone else know the history of this - was any of this code in the version of sid in the src repository? Is any of it still there? -- Daniel Jacobowitz CodeSourcery, LLC