From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Stefan Monnier Newsgroups: gmane.emacs.help Subject: Re: How to exit out of a function ? what is try-catch-throw in terms of Program Counter Date: Tue, 23 Oct 2007 21:09:44 -0400 Message-ID: References: <1192913158.922454.108100@k35g2000prh.googlegroups.com> <1193158478.891306.149890@v23g2000prn.googlegroups.com> NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Trace: ger.gmane.org 1193190191 12419 80.91.229.12 (24 Oct 2007 01:43:11 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Wed, 24 Oct 2007 01:43:11 +0000 (UTC) To: help-gnu-emacs@gnu.org Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Wed Oct 24 03:43:12 2007 Return-path: Envelope-to: geh-help-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([199.232.76.165]) by lo.gmane.org with esmtp (Exim 4.50) id 1IkVH6-0002pG-1d for geh-help-gnu-emacs@m.gmane.org; Wed, 24 Oct 2007 03:43:12 +0200 Original-Received: from localhost ([127.0.0.1] helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1IkVGx-00069R-WA for geh-help-gnu-emacs@m.gmane.org; Tue, 23 Oct 2007 21:43:04 -0400 Original-Path: shelby.stanford.edu!newsfeed.stanford.edu!postnews.google.com!news1.google.com!border1.nntp.dca.giganews.com!nntp.giganews.com!local01.nntp.dca.giganews.com!nntp.umontreal.ca!news.umontreal.ca.POSTED!not-for-mail Original-NNTP-Posting-Date: Tue, 23 Oct 2007 20:09:48 -0500 Original-Newsgroups: gnu.emacs.help,comp.lang.c,comp.lang.c++ User-Agent: Gnus/5.11 (Gnus v5.11) Emacs/23.0.50 (gnu/linux) Cancel-Lock: sha1:soCgXXHdGUVYb+LCqT4z+eDbSpc= Original-Lines: 10 X-Usenet-Provider: http://www.giganews.com Original-NNTP-Posting-Host: 132.204.27.213 Original-X-Trace: sv3-ESi16lV8bnnqrsBQ5VXtHJmVtGwTnLYHnZo8hoM67bIPP3j2cyV7T1kt9yZWo6Do2GwoSEPZ83Tlstk!2sJl0mafhPgfwFrUgWEN4ciIBfkmhYC/1U8gKaqNCt1eftXCNj7w1+C1enPhjyc73GWyRrMMhJp+!626DqFfZJGdneMgA5w== Original-X-Complaints-To: abuse@umontreal.ca X-DMCA-Complaints-To: abuse@umontreal.ca X-Abuse-and-DMCA-Info: Please be sure to forward a copy of ALL headers X-Abuse-and-DMCA-Info: Otherwise we will be unable to process your complaint properly X-Postfilter: 1.3.35 Original-Xref: shelby.stanford.edu gnu.emacs.help:153260 comp.lang.c:828410 comp.lang.c++:954516 X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Users list for the GNU Emacs text editor List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Original-Sender: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Errors-To: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.help:48748 Archived-At: > Anyone, care to show how this translates into assembly after we deal > thoroughly with this in the context of C ? I believe that one way to look at setjmp/longjmp in C is that setjmp saves a copy of the registers (most importantly PC and SP) and longjmp uses that copy to jump back to the corresponding point in the program (and stack activation). Stefan