[Mplayer-dev-eng] release today?

[Balazs Tibor]

> > I don't know how easy it is to detect wheter a i586 has
> > MMX or not and i also don't know how fast it is.
> >
> Maybe Nick will correct me, but...
>
> Detection of MMX is easy. just grep 'mmx' at /proc/cpuinfo, or
> use some inline assembly (see mmx/init.c in opendivx CVS for example).
>
> The main problem, is that MMX has no use for mp3 decoding.
> (it can do 16bit integer stuff, not too usefull for audio DCT/FFT)
> Those sse/3dnow files Tibcu mentioned uses MMX _together_ with 3dnow
> so it has osme use (I think theu use MMX registers for storing data
> for 3dnow instructions).
>
> But. Pentiums with MMX are faster with non-mmx code (muxh better pipeline
> usage) too, than non-MMX cpus! This is why you get 16% cpu usage compared
> with my 33% on p166 non-mmx.

Cool :)

Thanks for all these infos.

Tibcu


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