_mm256_mask_sub_pd
Classification
AVX-512, Arithmetic, CPUID Test: AVX512F
Header File
Instruction
VSUBPD ymm {k}, ymm, ymm
Synopsis
_mm256_mask_sub_pd(__m256d src, __mmask8 k, __m256d a, __m256d b);
Description
Subtract packed double-precision (64-bit) floating-point elements in "b" from packed double-precision (64-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 3
i := j*64
IF k[j]
dst[i+63:i] := a[i+63:i] - b[i+63:i]
ELSE
dst[i+63:i] := src[i+63:i]
FI
ENDFOR
dst[MAX:256] := 0