_mm_mask_sub_epi64
Classification
AVX-512, Arithmetic, CPUID Test: AVX512F
Header File
Instruction
VPSUBQ xmm {k}, xmm, xmm
Synopsis
_mm_mask_sub_epi64(__m128i src, __mmask8 k, __m128i a, __m128i b);
Description
Subtract packed 64-bit integers in "b" from packed 64-bit integers 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 1
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:128] := 0