Function core::arch::x86_64::_mm_maskz_getexp_round_sh
source · pub unsafe fn _mm_maskz_getexp_round_sh(
k: __mmask8,
a: __m128h,
b: __m128h,
const SAE: i32,
) -> __m128h
🔬This is a nightly-only experimental API. (
stdarch_x86_avx512_f16
#127213)Available on (x86 or x86-64) and target feature
avx512fp16
and x86-64 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. Exceptions can be suppressed by passing _MM_FROUND_NO_EXC in the sae parameter