unofficial mirror of help-gnu-emacs@gnu.org
 help / color / mirror / Atom feed
From: Stefan Monnier <monnier@iro.umontreal.ca>
To: help-gnu-emacs@gnu.org
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	[thread overview]
Message-ID: <jwv8x5twccf.fsf-monnier+gnu.emacs.help@gnu.org> (raw)
In-Reply-To: 1193158478.891306.149890@v23g2000prn.googlegroups.com

> 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

  parent reply	other threads:[~2007-10-24  1:09 UTC|newest]

Thread overview: 33+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-10-20 20:45 How to exit out of a function ? what is try-catch-throw in terms of Program Counter gnuist006
2007-10-20 20:57 ` gnuist006
2007-10-20 22:55 ` Alf P. Steinbach
2007-10-23 18:06   ` gnuist006
2007-10-23 19:53     ` Alf P. Steinbach
2007-11-04 23:02   ` David Thompson
2007-11-05  5:07     ` Alf P. Steinbach
2007-11-05  5:59       ` Alf P. Steinbach
2007-12-02 23:20       ` David Thompson
2007-12-02 23:51         ` Alf P. Steinbach
2007-10-21  1:08 ` Jim Langston
2007-10-21  2:30 ` Keith Thompson
2007-10-21 10:44   ` Kenny McCormack
2007-10-21 10:55     ` santosh
2007-10-21 12:26       ` Richard Heathfield
2007-10-21 22:35       ` Mark McIntyre
2007-10-21 12:09     ` Malcolm McLean
2007-10-21 15:23       ` Kenny McCormack
2007-10-21 15:54         ` santosh
2007-10-21 17:39         ` Malcolm McLean
2007-10-21 21:53           ` Kenny McCormack
2007-10-21  8:03 ` Malcolm McLean
2007-10-21 16:07 ` abhy
2007-10-21 17:43   ` santosh
2007-10-23  9:04 ` Joel Yliluoma
2007-10-23 16:33 ` Stefan Monnier
2007-10-23 16:44   ` gnuist006
2007-10-23 16:45   ` Victor Bazarov
2007-10-24  1:06     ` Stefan Monnier
2007-10-23 16:54   ` gnuist006
2007-10-23 17:14     ` Alf P. Steinbach
2007-10-24  1:09     ` Stefan Monnier [this message]
2007-10-24  0:02   ` Joel Yliluoma

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

  List information: https://www.gnu.org/software/emacs/

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=jwv8x5twccf.fsf-monnier+gnu.emacs.help@gnu.org \
    --to=monnier@iro.umontreal.ca \
    --cc=help-gnu-emacs@gnu.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).