From: Roman Zippel <zippel@linux-m68k.org>
To: David Howells <dhowells@redhat.com>
Cc: linux-kernel <linux-kernel@vger.kernel.org>
Subject: Re: thread_info implementation
Date: Tue, 12 Feb 2002 01:22:06 +0100 [thread overview]
Message-ID: <3C68602E.91D12F2F@linux-m68k.org> (raw)
In-Reply-To: <22351.1013472622@warthog.cambridge.redhat.com>
Hi,
David Howells wrote:
> Why are you using bitfield instructions on the m68k arch? why not use just
> simple bit instructions (or and/or/xor where masking)? All the flags are
> single bit width fields.
These are two bytes longer as well, right now I'm doing this:
tstw %d0
jeq do_signal_return
tstb %d0
jne do_delayed_trace
using btst or andw this would be four bytes longer.
bye, Roman
next prev parent reply other threads:[~2002-02-12 0:22 UTC|newest]
Thread overview: 56+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-02-11 21:08 Roman Zippel
2002-02-11 20:50 ` Anton Blanchard
2002-02-12 0:01 ` Roman Zippel
2002-02-12 0:10 ` David Howells
2002-02-12 0:22 ` Roman Zippel [this message]
2002-02-12 0:46 ` David S. Miller
2002-02-12 0:57 ` Roman Zippel
2002-02-12 0:57 ` David S. Miller
2002-02-12 1:10 ` Roman Zippel
2002-02-12 13:01 ` Bjorn Wesen
2002-02-12 13:49 ` David S. Miller
2002-02-12 1:01 ` David Mosberger
2002-02-12 1:21 ` David Mosberger
2002-02-12 1:36 ` David Mosberger
2002-02-12 1:53 ` David Mosberger
2002-02-12 2:30 ` David Mosberger
2002-02-12 2:46 ` David Mosberger
2002-02-12 3:01 ` David Mosberger
2002-02-12 3:18 ` David Mosberger
2002-02-12 3:32 ` David Mosberger
2002-02-12 4:16 ` David Mosberger
2002-02-12 4:33 ` David Mosberger
2002-02-12 5:26 ` Richard Henderson
2002-02-12 5:50 ` David Mosberger
2002-02-13 11:18 ` Anton Blanchard
2002-02-12 5:32 ` David S. Miller
2002-02-12 5:57 ` Richard Henderson
2002-02-12 2:49 ` Davide Libenzi
2002-02-12 1:07 ` David S. Miller
2002-02-12 1:32 ` David S. Miller
2002-02-12 1:41 ` David S. Miller
2002-02-12 2:22 ` David S. Miller
2002-02-12 2:36 ` David S. Miller
2002-02-12 2:51 ` David S. Miller
2002-02-12 3:04 ` David S. Miller
2002-02-12 3:23 ` David S. Miller
2002-02-12 3:42 ` David S. Miller
2002-02-12 4:21 ` David S. Miller
2002-02-12 17:14 ` Pavel Machek
2002-02-13 0:46 ` David S. Miller
2002-02-13 1:30 ` Roman Zippel
2002-02-12 9:12 ` Roman Zippel
2002-02-12 9:30 ` Jeff Garzik
2002-02-12 10:14 ` Roman Zippel
2002-02-12 13:21 ` David Howells
2002-02-12 19:15 ` David Mosberger
2002-02-12 19:38 ` David Howells
-- strict thread matches above, loose matches on Subject: below --
2002-02-11 17:39 Arkadiy Chapkis - Arc
2002-02-11 20:19 ` Robert Love
2002-02-11 20:42 ` Luigi Genoni
2002-02-11 20:48 ` Robert Love
2002-02-11 23:37 ` Jeff Garzik
2002-02-11 23:49 ` Richard Henderson
2002-02-12 0:09 ` Dave Jones
2002-02-12 0:20 ` Jeff Garzik
2002-02-12 0:24 ` Dave Jones
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