_mm256_mask_sub_ph
Classification
AVX-512, Arithmetic, CPUID Test: AVX512_FP16
Header File
Instruction
VSUBPH ymm {k}, ymm, ymm
Synopsis
_mm256_mask_sub_ph(__m256h src, __mmask16 k, __m256h a, __m256h b);
Description
Subtract packed half-precision (16-bit) floating-point elements in "b" from packed half-precision (16-bit) floating-point elements in "a", 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 15
IF k[j]
dst.fp16[j] := a.fp16[j] - b.fp16[j]
ELSE
dst.fp16[j] := src.fp16[j]
FI
ENDFOR
dst[MAX:256] := 0