Function _mm512_maskz_maddubs_epi16

pub fn _mm512_maskz_maddubs_epi16(k: u32, a: __m512i, b: __m512i) -> __m512i

Multiply packed unsigned 8-bit integers in a by packed signed 8-bit integers in b, producing intermediate signed 16-bit integers. Horizontally add adjacent pairs of intermediate signed 16-bit integers, and pack the saturated results in dst using zeromask k (elements are zeroed out when the corresponding mask bit is not set).

Intel’s documentation