[MPlayer-dev-eng] [PATCH] SSE version of DCT64 for mp3lib

[Zuxy Meng]

2006/6/23, Rich Felker <dalias at aerifal.cx>:
> 60% faster than 0% cpu usage is still 0% cpu usage. :)
> Seriously, even on my K6, mp3lib uses so little cpu time that I can't
> even measure it with top (shows up at bottom of list as 0% :).
>

There's another reason other than performance: MMX, 3DNow! and
3DNow!Ext versions hardcoded 32-bit registers in the inline asm, which
might cause problem under x86-64.

Or you can stick to the C version under x86-64. Of course it's still
fast enough on concurrent CPUs.

-- 
Zuxy
Beauty is truth,
While truth is beauty.
PGP KeyID: E8555ED6