Visible to Intel only — GUID: GUID-C31E8AF7-77C8-4151-852B-C60849148E14
Visible to Intel only — GUID: GUID-C31E8AF7-77C8-4151-852B-C60849148E14
Packed Format Conversion Intrinsics
These Intel® Streaming SIMD Extensions 4 (Intel® SSE4) intrinsics convert a packed integer to a zero-extended or sign-extended integer with wider type. The prototypes for these intrinsics are in the smmintrin.h file.
To use these intrinsics, include the immintrin.h file as follows:
#include <immintrin.h>
Intrinsic Syntax |
Operation |
Corresponding |
---|---|---|
__m128i _mm_cvtepi8_epi32(__m128i a) |
Sign extend four bytes into four doublewords |
PMOVSXBD |
__m128i _mm_cvtepi8_epi64 (__m128i a) |
Sign extend two bytes into two quadwords |
PMOVSXBQ |
__m128i _mm_cvtepi8_epi16(__m128i a) |
Sign extend eight bytes into eight words |
PMOVSXBW |
__m128i _mm_cvtepi32_epi64(__m128i a) |
Sign extend two doublewords into two quadwords |
PMOVSXDQ |
__m128i _mm_cvtepi16_epi32(__m128i a) |
Sign extend four words into four doublewords |
PMOVSXWD |
__m128i _mm_cvtepi16_epi64(__m128i a) |
Sign extend two words into two quadwords |
PMOVSXWQ |
__m128i _mm_cvtepu8_epi32(__m128i a) |
Zero extend four bytes into four doublewords |
PMOVZXBD |
__m128i _mm_cvtepu8_epi64(__m128i a) |
Zero extend two bytes into two quadwords |
PMOVZXBQ |
__m128i _mm_cvtepu8_epi16(__m128i a) |
Zero extend eight bytes into eight words |
PMOVZXBW |
__m128i _mm_cvtepu32_epi64(__m128i a) |
Zero extend two doublewords into two quadwords |
PMOVZXDQ |
__m128i _mm_cvtepu16_epi32(__m128i a) |
Zero extend four words into four doublewords |
PMOVZXWD |
__m128i _mm_cvtepu16_epi64(__m128i a) |
Zero extend two words into two quadwords |
PMOVZXWQ |