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Message-ID: <3C68602E.91D12F2F@linux-m68k.org>
Date: Tue, 12 Feb 2002 01:22:06 +0100
From: Roman Zippel <zippel@linux-m68k.org>
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To: David Howells <dhowells@redhat.com>
CC: linux-kernel <linux-kernel@vger.kernel.org>
Subject: Re: thread_info implementation
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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
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