[MPlayer-dev-eng] [PATCH]: Add SSE3 detection
Diego Biurrun
diego at biurrun.de
Mon Jan 12 12:30:59 CET 2009
On Mon, Jan 12, 2009 at 09:30:14AM +0800, Zuxy Meng wrote:
>
> 2009/1/12 Diego Biurrun <diego at biurrun.de>:
> > On Fri, Jan 09, 2009 at 05:53:07PM +0800, Zhou Zongyi wrote:
> >>
> >> Since SSSE3 and SSE4a detection have been added, we should also add SSE3.
> >>
> >> --- cpudetect.c (revision 28278)
> >> +++ cpudetect.c (working copy)
> >> @@ -153,6 +153,7 @@
> >> caps->hasMMX = (regs2[3] & (1 << 23 )) >> 23; // 0x0800000
> >> caps->hasSSE = (regs2[3] & (1 << 25 )) >> 25; // 0x2000000
> >> caps->hasSSE2 = (regs2[3] & (1 << 26 )) >> 26; // 0x4000000
> >> + caps->hasSSE3 = (regs2[2] & 1); // 0x0000001
> >> caps->hasSSSE3 = (regs2[2] & (1 << 9 )) >> 9; // 0x0000200
> >> caps->hasMMX2 = caps->hasSSE; // SSE cpus supports mmxext too
> >> cl_size = ((regs2[1] >> 8) & 0xFF)*8;
> >
> > Can anybody confirm this is correct or point out a place to
> > verify it?
>
> This is correct. However nobody uses SSE3 code within mplayer, AFAIK.
Then please apply the patch. This is your area of expertise anyway.
Diego
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