## _mm_mask_dpbusds_epi32

# Function _mm_mask_dpbusds_epi32

1.89.0 · Source

    pub fn _mm_mask_dpbusds_epi32(
        src: __m128i,
        k: __mmask8,
        a: __m128i,
        b: __m128i,
    ) -> __m128i

Available on x86-64 and target feature `avx512vnni` and target feature `avx512vl` only.
Expand description

Multiply groups of 4 adjacent pairs of unsigned 8-bit integers in a with corresponding signed 8-bit integers in b, producing 4 intermediate signed 16-bit results. Sum these 4 results with the corresponding 32-bit integer in src using signed saturation, and store the packed 32-bit results in dst using writemask k (elements are copied from src when the corresponding mask bit is not set).

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