_mm_slli_epi64
Classification
Header File
Instruction
PSLLQ xmm, imm8
Synopsis
_mm_slli_epi64(__m128i a, int imm8);
Description
Shift packed 64-bit integers in "a" left by "imm8" while shifting in zeros, and store the results in "dst".
Operation
FOR j := 0 to 1
i := j*64
IF imm8[7:0] > 63
dst[i+63:i] := 0
ELSE
dst[i+63:i] := ZeroExtend64(a[i+63:i] << imm8[7:0])
FI
ENDFOR