Visible to Intel only — GUID: GUID-EB97B414-D885-4790-B600-14AA20EB5C1A
Visible to Intel only — GUID: GUID-EB97B414-D885-4790-B600-14AA20EB5C1A
Compare Intrinsics (MMX™ technology)
This topic summarizes the MMX™ technology compare intrinsics.
To use these intrinsics, include the immintrin.h file as follows:
#include <immintrin.h>
Intrinsic |
Operation |
Corresponding |
---|---|---|
_mm_cmpeq_pi8 |
Equal |
PCMPEQB |
_mm_cmpeq_pi16 |
Equal |
PCMPEQW |
_mm_cmpeq_pi32 |
Equal |
PCMPEQD |
_mm_cmpgt_pi8 |
Greater Than |
PCMPGTB |
_mm_cmpgt_pi16 |
Greater Than |
PCMPGTW |
_mm_cmpgt_pi32 |
Greater Than |
PCMPGTD |
_mm_ cmpeq_pi8
__m64 _mm_ cmpeq_pi8(__m64 m1, __m64 m2);
Sets the corresponding 8-bit resulting values to all ones if the 8-bit values in m1 are equal to the corresponding 8-bit values in m2; otherwise sets them to all zeros.
_mm_ cmpeq_pi16
__m64 _mm_ cmpeq_pi16(__m64 m1, __m64 m2);
Sets the corresponding 16-bit resulting values to all ones if the 16-bit values in m1 are equal to the corresponding 16-bit values in m2; otherwise set them to all zeros.
_mm_ cmpeq_pi32
__m64 _mm_ cmpeq_pi32(__m64 m1, __m64 m2);
Sets the corresponding 32-bit resulting values to all ones if the 32-bit values in m1 are equal to the corresponding 32-bit values in m2; otherwise set them to all zeros.
_mm_ cmpgt_pi8
__m64 _mm_ cmpgt_pi8(__m64 m1, __m64 m2);
Sets the corresponding 8-bit resulting values to all ones if the 8-bit signed values in m1 are greater than the corresponding 8-bit signed values in m2; otherwise set them to all zeros.
_mm_ cmpgt_pi16
__m64 _mm_ cmpgt_pi16(__m64 m1, __m64 m2);
Sets the corresponding 16-bit resulting values to all ones if the 16-bit signed values in m1 are greater than the corresponding 16-bit signed values in m2; otherwise set them to all zeros.
_mm_ cmpgt_pi32
__m64 _mm_ cmpgt_pi32(__m64 m1, __m64 m2);
Sets the corresponding 32-bit resulting values to all ones, if the 32-bit signed values in m1 are greater than the corresponding 32-bit signed values in m2; otherwise set them all to zeros.