# Function core::arch::x86::_mm256_mpsadbw_epu8

1.27.0 · source ·

    pub unsafe fn _mm256_mpsadbw_epu8(
        a: __m256i,
        b: __m256i,
        const IMM8: i32
    ) -> __m256i

Available on (x86 or x86-64) and target feature `avx2` and x86 only.
Expand description

Computes the sum of absolute differences (SADs) of quadruplets of unsigned 8-bit integers in `a` compared to those in `b`, and stores the 16-bit results in dst. Eight SADs are performed for each 128-bit lane using one quadruplet from `b` and eight quadruplets from `a`. One quadruplet is selected from `b` starting at on the offset specified in `imm8`. Eight quadruplets are formed from sequential 8-bit integers selected from `a` starting at the offset specified in `imm8`.

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