_mm_mullo_epi64
Classification
AVX-512, Arithmetic, CPUID Test: AVX512DQ
Header File
Instruction
VPMULLQ xmm, xmm, xmm
Synopsis
_mm_mullo_epi64(__m128i a, __m128i b);
Description
Multiply the packed 64-bit integers in "a" and "b", producing intermediate 128-bit integers, and store the low 64 bits of the intermediate integers in "dst".
Operation
FOR j := 0 to 1
i := j*64
tmp[127:0] := a[i+63:i] * b[i+63:i]
dst[i+63:i] := tmp[63:0]
ENDFOR
dst[MAX:128] := 0