The IsProcessorFeaturePresent function determines whether the specified processor feature is supported by at least one processor on the current machine.
BOOL IsProcessorFeaturePresent(
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DWORD ProcessorFeature |
// specifies the processor feature |
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); |
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Value |
Meaning |
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PF_FLOATING_POINT_PRECISION_ |
In rare circumstances, a floating-point precision error can occur (Pentium). |
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PF_FLOATING_POINT_EMULATED |
Floating-point operations are emulated using a software emulator. |
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PF_COMPARE_EXCHANGE_DOUBLE |
The compare and exchange double operation is available (Pentium, MIPS, and Alpha). |
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PF_MMX_INSTRUCTIONS_AVAILABLE |
The MMX instruction set is available. |
If at least one of the processors supports the feature, the return value is nonzero.
If no processor supports the feature, the return value is zero.