36 lines
601 B
C++
36 lines
601 B
C++
#if OS_WINDOWS
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#include <intrin.h>
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int cpu_max_feature_leaf () {
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int cpuInfo[4];
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__cpuid(cpuInfo, 0);
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int maxLeaf = cpuInfo[0];
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return maxLeaf;
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}
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int CPU_Base_Frequency() {
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int cpuInfo[4] = {0};
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// Call CPUID with EAX = 0x16 (Base CPU Frequency)
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if (cpu_max_feature_leaf() >= 0x16)
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__cpuid(cpuInfo, 0x16);
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return cpuInfo[0];
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}
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#endif
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#if OS_IS_UNIX
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#include <cpuid.h>
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int CPU_Base_Frequency() {
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unsigned int eax, ebx, ecx, edx;
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if (__get_cpuid(0x16, &eax, &ebx, &ecx, &edx)) {
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return eax;
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}
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return 0; // not found or supported
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}
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#endif
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