Function _mm512_getexp_ph

#[target_feature(enable = "avx512fp16")]
pub fn _mm512_getexp_ph(a: __m512h) -> __m512h

Convert the exponent of each packed half-precision (16-bit) floating-point element in a to a half-precision (16-bit) floating-point number representing the integer exponent, and store the results in dst. This intrinsic essentially calculates floor(log2(x)) for each element.

Intel's documentation