[MPlayer-dev-eng] [PATCH] x86_64 mmx/sse/3dnow optimisation support

[Aurelien Jacobs]

On Wed, 13 Oct 2004 02:06:26 +0200
Aurelien Jacobs <aurel at gnuage.org> wrote:

> On Wed, 13 Oct 2004 00:00:17 +0200
> Michael Niedermayer <michaelni at gmx.at> wrote:
> 
> > > > What are the changes in libvo/osd_template.c for?
> > >
> > > In 64 bits mode, x86_64 can't access to upper halves (ah, ch...)
> > 
> > this is wrong, it can (at least the docs claim so, i dont have a
> > x86-64 system), but there are some exceptions, like none of the new
> > 8 registers may be used in the same instruction, anyway see the docs
> > for details
> 
> Hum... nice catch ! I didn't see that this is forbien only combined
> with the new 8 GPR. I thought it couldn't be used in combination with
> any 64 bits register.
> This allows me to simplify the osd_template.c modification, simply
> forcing %0 to be a legacy register.
> Updated patch.

Any more comments/complain about this ?
If not, I will commit in a few days.

Aurel