Function core::arch::x86_64::_mm256_maskz_dbsad_epu8
source · pub unsafe fn _mm256_maskz_dbsad_epu8(
k: __mmask16,
a: __m256i,
b: __m256i,
const IMM8: i32
) -> __m256i
🔬This is a nightly-only experimental API. (
stdsimd
#48556)Available on (x86 or x86-64) and target feature
avx512bw,avx512vl
and x86-64 only.Expand description
Compute the sum of absolute differences (SADs) of quadruplets of unsigned 8-bit integers in a compared to those in b, and store the 16-bit results in dst using zeromask k (elements are zeroed out when the corresponding mask bit is not set). Four SADs are performed on four 8-bit quadruplets for each 64-bit lane. The first two SADs use the lower 8-bit quadruplet of the lane from a, and the last two SADs use the uppper 8-bit quadruplet of the lane from a. Quadruplets from b are selected from within 128-bit lanes according to the control in imm8, and each SAD in each 64-bit lane uses the selected quadruplet at 8-bit offsets.