C# Signature:
[DllImport("kernel32.dll")]
[return: MarshalAs(UnmanagedType.Bool)]
static extern bool IsProcessorFeaturePresent(ProcessorFeature processorFeature);
User-Defined Types:
public enum ProcessorFeature : uint {
/// <summary>
/// On a Pentium, a floating-point precision error can occur in rare circumstances
/// </summary>
FloatingPointPrecisionErrata = 0,
/// <summary>
/// Floating-point operations are emulated using a software emulator.
/// This function returns a nonzero value if floating-point operations are emulated; otherwise, it returns zero.
/// </summary>
FloatingPointEmulated = 1,
/// <summary>
/// The atomic compare and exchange operation (cmpxchg) is available
/// </summary>
CompareExchangeDouble = 2,
/// <summary>
/// The MMX instruction set is available
/// </summary>
InstructionsMMXAvailable = 3,
/// <summary>
/// The SSE instruction set is available
/// </summary>
InstructionsXMMIAvailable = 6,
/// <summary>
/// The 3D-Now instruction set is available.
/// </summary>
Instruction3DNowAvailable = 7,
/// <summary>
/// The RDTSC instruction is available
/// </summary>
InstructionRDTSCAvailable = 8,
/// <summary>
/// The processor is PAE-enabled
/// </summary>
PAEEnabled = 9,
/// <summary>
/// The SSE2 instruction set is available
/// </summary>
InstructionsXMMI64Available = 10,
/// <summary>
/// Data execution prevention is enabled. (This feature is not supported until Windows XP SP2 and Windows Server 2003 SP1)
/// </summary>
NXEnabled = 12,
/// <summary>
/// The SSE3 instruction set is available. (This feature is not supported until Windows Vista)
/// </summary>
InstructionsSSE3Available = 13,
/// <summary>
/// The atomic compare and exchange 128-bit operation (cmpxchg16b) is available. (This feature is not supported until Windows Vista)
/// </summary>
CompareExchange128 = 14,
/// <summary>
/// The atomic compare 64 and exchange 128-bit operation (cmp8xchg16) is available (This feature is not supported until Windows Vista.)
/// </summary>
Compare64Exchange128 = 15,
/// <summary>
/// TBD
/// </summary>
ChannelsEnabled = 16,
}
Notes:
None.
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Sample Code:
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Alternative Managed API:
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