# Function core::arch::x86_64::_mm512_mask_cvtusepi64_epi8[−][src]

    pub unsafe fn _mm512_mask_cvtusepi64_epi8(
        src: __m128i,
        k: __mmask8,
        a: __m512i
    ) -> __m128i

🔬 This is a nightly-only experimental API. (`stdsimd` #48556)
This is supported on x86-64 and target feature `avx512f` only.

Convert packed unsigned 64-bit integers in a to packed unsigned 8-bit integers with unsigned saturation, and store the results in dst using writemask k (elements are copied from src when the corresponding mask bit is not set).

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