_mm256_mask_cvtph_pd
Classification
AVX-512, Convert, CPUID Test: AVX512_FP16
Header File
Instruction
VCVTPH2PD ymm {k}, xmm
Synopsis
_mm256_mask_cvtph_pd(__m256d src, __mmask8 k, __m128h a);
Description
Convert packed half-precision (16-bit) floating-point elements in "a" to packed double-precision (64-bit) floating-point elements, and store the results in "dst" using writemask "k" (elements are copied from "src" when the corresponding mask bit is not set).
Operation
FOR j := 0 to 3
IF k[j]
dst.fp64[j] := Convert_FP16_To_FP64(a.fp16[j])
ELSE
dst.fp64[j] := src.fp64[j]
FI
ENDFOR
dst[MAX:256] := 0