58 lines
1.3 KiB
C++
58 lines
1.3 KiB
C++
#include "pfc.h"
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#if PFC_HAVE_CPUID
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namespace pfc {
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bool query_cpu_feature_set(unsigned p_value) {
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#ifdef _MSC_VER
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__try {
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#endif
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if (p_value & (CPU_HAVE_SSE | CPU_HAVE_SSE2 | CPU_HAVE_SSE3 | CPU_HAVE_SSSE3 | CPU_HAVE_SSE41 | CPU_HAVE_SSE42)) {
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int buffer[4];
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__cpuid(buffer,1);
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if (p_value & CPU_HAVE_SSE) {
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if ((buffer[3]&(1<<25)) == 0) return false;
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}
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if (p_value & CPU_HAVE_SSE2) {
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if ((buffer[3]&(1<<26)) == 0) return false;
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}
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if (p_value & CPU_HAVE_SSE3) {
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if ((buffer[2]&(1<<0)) == 0) return false;
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}
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if (p_value & CPU_HAVE_SSSE3) {
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if ((buffer[2]&(1<<9)) == 0) return false;
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}
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if (p_value & CPU_HAVE_SSE41) {
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if ((buffer[2]&(1<<19)) == 0) return false;
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}
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if (p_value & CPU_HAVE_SSE42) {
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if ((buffer[2]&(1<<20)) == 0) return false;
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}
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}
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#ifdef _M_IX86
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if (p_value & (CPU_HAVE_3DNOW_EX | CPU_HAVE_3DNOW)) {
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int buffer_amd[4];
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__cpuid(buffer_amd,0x80000000);
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if ((unsigned)buffer_amd[0] < 0x80000001) return false;
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__cpuid(buffer_amd,0x80000001);
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if (p_value & CPU_HAVE_3DNOW) {
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if ((buffer_amd[3]&(1<<31)) == 0) return false;
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}
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if (p_value & CPU_HAVE_3DNOW_EX) {
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if ((buffer_amd[3]&(1<<30)) == 0) return false;
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}
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}
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#endif
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return true;
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#ifdef _MSC_VER
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} __except(1) {
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return false;
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}
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#endif
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}
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}
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#endif
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