Re: Video Overlay on C3200

On Wed, Mar 14, 2007 at 06:32:26PM +0000, Tim Chick wrote:
> On Wednesday 14 March 2007 14:51, Graeme Gregory wrote:
> > On Wed, Mar 14, 2007 at 02:31:26PM +0000, Tim Chick wrote:
> > > > If so the extra speed is because it links in a proprietry lib
> > > OK, and I'll try and get a run time check working for IWMMXT, so
> > > that can be included in all mplayer builds (or maybe just armv5tel
> > > ones). The drop from 37 to 28 seconds is pretty good!
> >
> > That would be awesome, as I try and cut down the number of machine
> > specific versions of mplayer around.
> >
> But sadly not very possible. I believe the only way to check for the 
> processor is via coprocessor instructions, which are only available in 
> privileged mode. I guess I need to ask the kernel somehow, as that must 
> be compiled with support, but I can't see how. Sorry! Can we assume if 
> its arm5vtel it is also iWMMXT?
> 
No because the pxa255 doesnt have iwMMXT

G


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