Function name: IsProcessorFeaturePresent

Defined in : Kernel32

Requirements : Windows NT 4.0 or later; Win9x/ME: Not supported

Declaration:

Declare Function IsProcessorFeaturePresent Lib "kernel32.dll" (ByVal ProcessorFeature As Long) As Long

Parameters:

* ProcessorFeature [in] Specifies the processor feature to be tested. This parameter can be one of the following values. PF_FLOATING_POINT_PRECISION_ERRATA In rare circumstances, a floating-point precision error can occur (Pentium). PF_FLOATING_POINT_EMULATED Floating-point operations are emulated using a software emulator. Windows 2000/XP: This function returns a nonzero value if floating-point operations are emulated; otherwise, it returns zero. Windows NT 4.0: This function returns zero if floating-point operations are emulated; otherwise, it returns a nonzero value. This behavior is a bug that is fixed in later versions. PF_COMPARE_EXCHANGE_DOUBLE The compare and exchange double operation is available (Pentium, MIPS, and Alpha). PF_MMX_INSTRUCTIONS_AVAILABLE The MMX instruction set is available. PF_XMMI_INSTRUCTIONS_AVAILABLE The XMMI instruction set is available. PF_3DNOW_INSTRUCTIONS_AVAILABLE The 3D-Now instruction set is available. PF_RDTSC_INSTRUCTION_AVAILABLE The RDTSC instruction is available. PF_PAE_ENABLED The processor is PAE-enabled.

Returns:

If feature is supported, the return value is a nonzero value. If the feature is not supported, the return value is zero.

Related functions:

Examples:

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