Re: thread_info implementation

Roman Zippel (zippel@linux-m68k.org)
Tue, 12 Feb 2002 01:22:06 +0100


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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