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Don't invoke asm for cpu info on 64. Assume sse, sse2, etc. are supported there.

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This commit is contained in:
Nicholas Hastings 2016-07-22 13:37:03 -04:00
parent f560b5bd37
commit b134f103a3
1 changed files with 16 additions and 0 deletions
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16
tier1/processor_detect_linux.cpp
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@ -11,30 +11,43 @@
bool CheckMMXTechnology(void) bool CheckMMXTechnology(void)
{ {
#ifndef PLATFORM_64BITS
unsigned long eax,ebx,edx,unused; unsigned long eax,ebx,edx,unused;
cpuid(1,eax,ebx,unused,edx); cpuid(1,eax,ebx,unused,edx);
return edx & 0x800000; return edx & 0x800000;
#else
return true;
#endif
} }
bool CheckSSETechnology(void) bool CheckSSETechnology(void)
{ {
#ifndef PLATFORM_64BITS
unsigned long eax,ebx,edx,unused; unsigned long eax,ebx,edx,unused;
cpuid(1,eax,ebx,unused,edx); cpuid(1,eax,ebx,unused,edx);
return edx & 0x2000000L; return edx & 0x2000000L;
#else
return true;
#endif
} }
bool CheckSSE2Technology(void) bool CheckSSE2Technology(void)
{ {
#ifndef PLATFORM_64BITS
unsigned long eax,ebx,edx,unused; unsigned long eax,ebx,edx,unused;
cpuid(1,eax,ebx,unused,edx); cpuid(1,eax,ebx,unused,edx);
return edx & 0x04000000; return edx & 0x04000000;
#else
return true;
#endif
} }
bool Check3DNowTechnology(void) bool Check3DNowTechnology(void)
{ {
#ifndef PLATFORM_64BITS
unsigned long eax, unused; unsigned long eax, unused;
cpuid(0x80000000,eax,unused,unused,unused); cpuid(0x80000000,eax,unused,unused,unused);
@ -44,4 +57,7 @@ bool Check3DNowTechnology(void)
return ( eax & 1<<31 ); return ( eax & 1<<31 );
} }
return false; return false;
#else
return true;
#endif
} }