_mm256_maskz_mullo_epi16
Classification
AVX-512, Arithmetic, CPUID Test: AVX512BW
Header File
Instruction
VPMULLW ymm {z}, ymm, ymm
Synopsis
_mm256_maskz_mullo_epi16(__mmask16 k, __m256i a, __m256i b);
Description
Multiply the packed 16-bit integers in "a" and "b", producing intermediate 32-bit integers, and store the low 16 bits of the intermediate integers in "dst" using zeromask "k" (elements are zeroed out when the corresponding mask bit is not set).
Operation
FOR j := 0 to 15
i := j*16
IF k[j]
tmp[31:0] := SignExtend32(a[i+15:i]) * SignExtend32(b[i+15:i])
dst[i+15:i] := tmp[15:0]
ELSE
dst[i+15:i] := 0
FI
ENDFOR
dst[MAX:256] := 0