[Mplayer-dev-eng] VP3 Codec

[Felix Buenemann]

On Friday, 21. September 2001 21:03, Arpi wrote:
> Hi,
>
> > > here is the not
> > > to usable gdb session (seems to crash in codec, as theres no debug
> > > info):
> >
> > ...
> >
> > > Program received signal SIGSEGV, Segmentation fault.
> > > [Switching to Thread 1024 (LWP 8565)]
> > > 0x10004bd6 in ?? ()
> >
> > ...
> >
> > > 0x10004bd6:     mov    %cr0,%edx
> >
> > Oops.  So a Win32 DLL can mess with %cr0?  Amazing.
>
> yes. you know their slogen: win98 - everything possible
>
> btw that routine just checks some flags in cr0, and depending on their
> value returns eax=0 or eax=1. i think thet can be replaced by a mov eax,0/1
> and many nops.
the codec seems to use much asm code, maybe it's some sort of cpu feature 
detection.
>
>
> A'rpi / Astral & ESP-team

-- 
Best Regards,
	Atmos

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