On Mon, Jul 25, 2011 at 11:52:52AM +0200, Joerg Sonnenberger wrote:
> Much better. One thing remains. It would be nice to replace
> .byte 0xf3,0xc3
> with either a simple ret or a ret $0, depending on whether it has a
> label on it or not. The reason for this mess seems to be a bug in
> certain generation of AMD CPUs. So essentially,
IIRC it is something to do with branch prediction?
But my memory keeps thinking of a constraint about the number
of branches/labels in a cache line - and I'm sure the non-use of
1 byte return instructions was all related.
David
--
David Laight: da...@l8s.co.uk
