From: Alan Modra <alan@spri.levels.unisa.edu.au>
To: ak@muc.de
Cc: egcs@cygnus.com
Subject: Re: Feature request: ability to describe x86 register halves as contraints.
Date: Tue, 30 Jun 1998 19:49:00 -0000 [thread overview]
Message-ID: <Pine.LNX.3.96.980701100534.29344A-100000@mullet.Levels.UniSA.Edu.Au> (raw)
In-Reply-To: <19980630135032.22058@kali.lrz-muenchen.de>
On Tue, 30 Jun 1998 ak@muc.de wrote:
> > asm ("# %0 %b0 %h0 %w0 %k0" : : "q"(x));
> >
> > yields
> >
> > # %eax %al %ah %ax %eax
>
> Ok, I feel stupid now, but to my defense I must say that this is not
> documented in the info pages.
Yes, you have to dig into i386.md
Colin Plumb <colin@nyx.net> wrote a really good, tutorial style,
description of x86 constraints. If you ask him, I guess he'd be happy to
send it to you. His tutorial really ought to be part of egcs
documentation.
next prev parent reply other threads:[~1998-06-30 19:49 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
1998-06-29 20:41 ak
1998-06-30 0:42 ` Richard Henderson
1998-06-30 4:50 ` ak
1998-06-30 19:49 ` Alan Modra [this message]
1998-06-30 19:49 ` Andreas Kleen
1998-06-30 14:08 ` Jeffrey A Law
1998-06-30 9:24 ` Richard Henderson
1998-06-30 1:02 ` Jeffrey A Law
1998-06-30 11:53 ` Joern Rennecke
1998-06-30 11:53 ` Jeffrey A Law
1998-07-01 3:42 ` Richard Henderson
1998-06-30 15:15 ` Bill Currie
1998-06-30 15:26 ` Jeffrey A Law
1998-06-30 23:15 ` Bill Currie
1998-06-30 19:49 ` Jeffrey A Law
1998-07-01 10:51 ` Joern Rennecke
1998-07-01 10:51 ` Jeffrey A Law
1998-07-01 13:20 Michael Meissner
1998-07-01 20:15 ` Joern Rennecke
[not found] <359ABD84.2FC4@tssc.co.nz>
1998-07-02 1:39 ` Jeffrey A Law
1998-07-02 1:39 ` Bill Currie
1998-07-02 1:39 ` Jeffrey A Law
1998-07-03 0:12 ` Bill Currie
1998-07-02 11:02 ` Joern Rennecke
1998-07-02 15:15 ` Bill Currie
1998-07-02 15:15 ` Joern Rennecke
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
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=Pine.LNX.3.96.980701100534.29344A-100000@mullet.Levels.UniSA.Edu.Au \
--to=alan@spri.levels.unisa.edu.au \
--cc=ak@muc.de \
--cc=egcs@cygnus.com \
/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).