MMX Technology Compare Intrinsics

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Microsoft Visual Studio 2008/.Net Framework 3.5

Other versions are also available for the following:

Visual C++ Language Reference

Microsoft Specific

The intrinsics listed in the following table are followed by a description of each intrinsic.

MMX intrinsics use the __m64 data type, which is not supported on x64 processors.

The header file mmintrin.h contains the declarations for the MMX intrinsics.

Compare Intrinsics

Intrinsic name	Comparison	Number of elements	Element bit size	Corresponding instruction
_mm_cmpeq_pi8	Equals	8	8	PCMPEQB
_mm_cmpeq_pi16	Equals	4	16	PCMPEQW
_mm_cmpeq_pi32	Equals	2	32	PCMPEQD
_mm_cmpgt_pi8	Greater than	8	8	PCMPGTB
_mm_cmpgt_pi16	Greater than	4	16	PCMPGTW
_mm_cmpgt_pi32	Greater than	2	32	PCMPGTD