From: Albert Cahalan <albert@users.sf.net>
To: tab@snarc.org
Cc: benh@kernel.crashing.org,
linux-kernel mailing list <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] ppc32 use simplified mmenonics
Date: 21 Aug 2004 20:45:26 -0400 [thread overview]
Message-ID: <1093135526.5759.2513.camel@cube> (raw)
> This patch substitutes complex rlwinm instruction
> to the simplied instruction clrrwi when possible.
>
> This has the same meaning as the ppc knows only about
> rlwinm; clrrwi is just a language simplification.
>
> basicly it's a : s/rlwinm R1,R2,0,0,31-N/clrrwi R1,R2,N/
>
> Please apply or comments,
I'd rather you went the other way, replacing these
barely-documented instructions with ones that are
easy to look up. Motorola has about a zillion of
these "simplified" instructions. I guess Motorola
and IBM were jealous of Intel's CISC instructions.
The big problem is this:
THESE ARE NOT IN THE INDEX!!!!!!
So, if I forget what one of these many instructions
does, I'll have quite the time paging through the
manual trying to find it.
If it's not in the index, please avoid it.
next reply other threads:[~2004-08-22 3:19 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-08-22 0:45 Albert Cahalan [this message]
2004-08-22 9:43 ` [PATCH] ppc32 use simplified mmenonics Vincent Hanquez
2004-08-22 10:41 ` Albert Cahalan
2004-08-22 14:45 ` Vincent Hanquez
2004-08-22 12:40 ` Albert Cahalan
2004-08-22 16:28 ` Vincent Hanquez
2004-08-22 14:29 ` Albert Cahalan
2004-08-22 19:17 ` Vincent Hanquez
2004-08-22 17:02 ` Horst von Brand
2004-08-23 1:24 ` Benjamin Herrenschmidt
-- strict thread matches above, loose matches on Subject: below --
2004-08-21 22:23 Vincent Hanquez
2004-08-22 2:00 ` Benjamin Herrenschmidt
2004-08-22 9:48 ` Vincent Hanquez
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=1093135526.5759.2513.camel@cube \
--to=albert@users.sf.net \
--cc=benh@kernel.crashing.org \
--cc=linux-kernel@vger.kernel.org \
--cc=tab@snarc.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