MMX Technology Compare Intrinsics
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 |
|---|---|---|---|---|
Equals |
8 |
8 |
PCMPEQB |
|
Equals |
4 |
16 |
PCMPEQW |
|
Equals |
2 |
32 |
PCMPEQD |
|
Greater than |
8 |
8 |
PCMPGTB |
|
Greater than |
4 |
16 |
PCMPGTW |
|
Greater than |
2 |
32 |
PCMPGTD |