# Function core::arch::x86::_mm_mask_fnmadd_ss

source ·

    pub unsafe fn _mm_mask_fnmadd_ss(
        a: __m128,
        k: __mmask8,
        b: __m128,
        c: __m128
    ) -> __m128

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

Multiply the lower single-precision (32-bit) floating-point elements in a and b, and add the negated intermediate result to the lower element in c. Store the result in the lower element of dst using writemask k (the element is copied from a when mask bit 0 is not set), and copy the upper 3 packed elements from a to the upper elements of dst.

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