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via c3 detection patch by (Francisco Javier Cabello Torres <fjcabello at visual-tools dot com>) 

Originally committed as revision 1275 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Francisco Javier Cabello Torres 2002-11-25 16:58:41 +00:00 committed by Michael Niedermayer
parent 525e51e8a3
commit 57fc257642
1 changed files with 15 additions and 0 deletions
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15
libavcodec/i386/cputest.c
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@ -77,6 +77,21 @@ int mm_support(void)
if (edx & 0x00400000)
rval |= MM_MMXEXT;
return rval;
} else if (ebx == 0x746e6543 &&
edx == 0x48727561 &&
ecx == 0x736c7561) { /* "CentaurHauls" */
/* VIA C3 */
cpuid(0x80000000, eax, ebx, ecx, edx);
if ((unsigned)eax < 0x80000001)
goto inteltest;
cpuid(0x80000001, eax, ebx, ecx, edx);
rval = 0;
if( edx & ( 1 << 31) )
rval |= MM_3DNOW;
if( edx & ( 1 << 23) )
rval |= MM_MMX;
if( edx & ( 1 << 24) )
rval |= MM_MMXEXT;
} else if (ebx == 0x69727943 &&
edx == 0x736e4978 &&
ecx == 0x64616574) {