Visible to Intel only — GUID: GUID-69E68693-5643-4C2C-ADB7-A95749C0A09D
Visible to Intel only — GUID: GUID-69E68693-5643-4C2C-ADB7-A95749C0A09D
Absolute Value Intrinsics
These Supplemental Streaming SIMD Extensions 3 (SSSE3) intrinsics are used to compute absolute values. The prototypes for these intrinsics are in tmmintrin.h.
To use these intrinsics, include the immintrin.h file as follows:
#include <immintrin.h>
_mm_abs_epi8
extern __m128i _mm_abs_epi8(__m128i a);
Computes absolute value of signed bytes. Interpreting a and r as arrays of signed 8-bit integers:
for (i = 0; i < 16; i++) { r[i] = abs(a[i]); }
_mm_abs_epi16
extern __m128i _mm_abs_epi16(__m128i a);
Computes absolute value of signed words. Interpreting a and r as arrays of signed 16-bit integers:
for (i = 0; i < 8; i++) { r[i] = abs(a[i]); }
_mm_abs_epi32
extern __m128i _mm_abs_epi32(__m128i a);
Computes absolute value of signed doublewords. Interpreting a and r as arrays of signed 32-bit integers:
for (i = 0; i < 4; i++) { r[i] = abs(a[i]); }
_mm_abs_pi8
extern __m64 _mm_abs_pi8(__m64 a);
Computes absolute value of signed bytes. Interpreting a and r as arrays of signed 8-bit integers:
for (i = 0; i < 8; i++) { r[i] = abs(a[i]); }
_mm_abs_pi16
extern __m64 _mm_abs_pi16(__m64 a);
Computes absolute value of signed words. Interpreting a and r as arrays of signed 16-bit integers:
for (i = 0; i < 4; i++) { r[i] = abs(a[i]); }
_mm_abs_pi32
extern __m64 _mm_abs_pi32(__m64 a);
Computes absolute value of signed doublewords. Interpreting a and r as arrays of signed 32-bit integers:
for (i = 0; i < 2; i++) { r[i] = abs(a[i]); }