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## _mm_maskz_getexp_sh

# Function _mm_maskz_getexp_sh

1.94.0 · Source

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

Available on x86-64 and target feature `avx512fp16` only.
Expand description

Convert the exponent of the lower half-precision (16-bit) floating-point element in b to a half-precision (16-bit) floating-point number representing the integer exponent, store the result in the lower element of dst using zeromask k (the element is zeroed out when mask bit 0 is not set), and copy the upper 7 packed elements from a to the upper elements of dst. This intrinsic essentially calculates `floor(log2(x))` for the lower element.

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