# Function _mm256_mask_cvtpd_ph

Source

    pub fn _mm256_mask_cvtpd_ph(src: __m128h, k: __mmask8, a: __m256d) -> __m128h

🔬This is a nightly-only experimental API. (`stdarch_x86_avx512_f16` #127213)
Available on (x86 or x86-64) and target feature `avx512fp16` and target feature `avx512vl` and x86-64 only.
Expand description

Convert packed double-precision (64-bit) floating-point elements in a to packed half-precision (16-bit) floating-point elements, and store the results in dst using writemask k (elements are copied from src to dst when the corresponding mask bit is not set). The upper 64 bits of dst are zeroed out.

Intel’s documentation