From: Ralf Baechle <ralf@linux-mips.org>
To: "Maciej W. Rozycki" <macro@ds2.pg.gda.pl>
Cc: Daniel Jacobowitz <dan@debian.org>,
Hartvig Ekner <hartvige@mips.com>,
"Kevin D. Kissell" <kevink@mips.com>,
Tor Arntsen <tor@spacetec.no>,
Carsten Langgaard <carstenl@mips.com>,
linux-mips@linux-mips.org
Subject: Re: 64-bit and N32 kernel interfaces
Date: Fri, 6 Sep 2002 11:30:49 +0200 [thread overview]
Message-ID: <20020906113049.A2993@linux-mips.org> (raw)
In-Reply-To: <Pine.GSO.3.96.1020905170830.7444E-100000@delta.ds2.pg.gda.pl>; from macro@ds2.pg.gda.pl on Thu, Sep 05, 2002 at 05:10:51PM +0200
On Thu, Sep 05, 2002 at 05:10:51PM +0200, Maciej W. Rozycki wrote:
> > No - the point is that all data types have the same size in N32. It
> > was created explicitly as a transitional sop for people who didn't want
> > to fix their code, but wanted a performance increase from their 64-bit
> > hardware.
>
> Well, what's the performance increase of n32 over o32? The increased
> number of argument registers? I doubt it's noticeable in most cases.
That's a minor optimization. More important is the availability of
MIPS III/IV and MIPS64 instruction sets which means 64-bit integer registers
and 32 64-bit double precission fp registers.
Ralf
next prev parent reply other threads:[~2002-09-08 16:12 UTC|newest]
Thread overview: 54+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-09-05 9:30 64-bit and N32 kernel interfaces Tor Arntsen
2002-09-05 11:47 ` Maciej W. Rozycki
2002-09-05 12:48 ` Kevin D. Kissell
2002-09-05 12:48 ` Kevin D. Kissell
2002-09-05 14:09 ` Maciej W. Rozycki
2002-09-05 14:20 ` Hartvig Ekner
2002-09-05 14:20 ` Hartvig Ekner
2002-09-05 14:54 ` Maciej W. Rozycki
2002-09-05 14:59 ` Daniel Jacobowitz
2002-09-05 15:10 ` Maciej W. Rozycki
2002-09-05 15:14 ` Daniel Jacobowitz
2002-09-05 16:16 ` Maciej W. Rozycki
2002-09-05 16:19 ` Daniel Jacobowitz
2002-09-05 16:33 ` Maciej W. Rozycki
2002-09-05 16:39 ` Daniel Jacobowitz
2002-09-05 17:16 ` Maciej W. Rozycki
2002-09-05 17:29 ` Kevin D. Kissell
2002-09-05 17:29 ` Kevin D. Kissell
2002-09-05 19:34 ` Maciej W. Rozycki
2002-09-06 9:42 ` Ralf Baechle
2002-09-05 18:07 ` Hartvig Ekner
2002-09-05 18:07 ` Hartvig Ekner
2002-09-05 18:54 ` Maciej W. Rozycki
2002-09-05 19:16 ` Thiemo Seufer
2002-09-06 9:30 ` Ralf Baechle [this message]
2002-09-05 14:22 ` Daniel Jacobowitz
2002-09-05 15:08 ` Maciej W. Rozycki
2002-09-05 15:14 ` Daniel Jacobowitz
2002-09-05 16:28 ` Maciej W. Rozycki
2002-09-05 16:30 ` Thiemo Seufer
2002-09-05 16:54 ` Maciej W. Rozycki
2002-09-05 17:44 ` Thiemo Seufer
2002-09-05 19:50 ` Maciej W. Rozycki
2002-09-05 22:12 ` Thiemo Seufer
2002-09-09 17:39 ` Maciej W. Rozycki
2002-09-06 10:14 ` Ralf Baechle
2002-09-09 14:01 ` Dominic Sweetman
-- strict thread matches above, loose matches on Subject: below --
2002-09-04 13:56 Ralf Baechle
2002-09-04 14:14 ` Maciej W. Rozycki
2002-09-04 14:31 ` Ralf Baechle
2002-09-04 15:19 ` Maciej W. Rozycki
2002-09-04 18:46 ` Ralf Baechle
2002-09-05 9:53 ` Maciej W. Rozycki
2002-09-05 6:40 ` Carsten Langgaard
2002-09-05 9:23 ` Maciej W. Rozycki
2002-09-05 13:41 ` Daniel Jacobowitz
2002-09-04 17:32 ` Jun Sun
2002-09-04 17:56 ` Maciej W. Rozycki
2002-09-04 18:40 ` Ralf Baechle
2002-09-05 10:15 ` Kjeld Borch Egevang
2002-09-05 10:15 ` Kjeld Borch Egevang
2002-09-09 20:20 ` Jay Carlson
2002-09-16 13:01 ` Ralf Baechle
2002-09-16 15:40 ` Ralf Baechle
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=20020906113049.A2993@linux-mips.org \
--to=ralf@linux-mips.org \
--cc=carstenl@mips.com \
--cc=dan@debian.org \
--cc=hartvige@mips.com \
--cc=kevink@mips.com \
--cc=linux-mips@linux-mips.org \
--cc=macro@ds2.pg.gda.pl \
--cc=tor@spacetec.no \
/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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.