# Function _mm_mask_mul_sch

Source

    pub fn _mm_mask_mul_sch(
        src: __m128h,
        k: __mmask8,
        a: __m128h,
        b: __m128h,
    ) -> __m128h

🔬This is a nightly-only experimental API. (`stdarch_x86_avx512_f16` #127213)
Available on (x86 or x86-64) and target feature `avx512fp16` and x86 only.
Expand description

Multiply the lower complex numbers in a and b, and store the result in the lower elements of dst using writemask k (the element is copied from src when mask bit 0 is not set), and copy the upper 6 packed elements from a to the upper elements of dst. Each complex number is composed of two adjacent half-precision (16-bit) floating-point elements, which defines the complex number `complex = vec.fp16[0] + i * vec.fp16[1]`.

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