psllw

Packed Shift Left Logical Word

PSLLW xmm, imm8

Shifts words left.

Details

The Packed Shift Left Logical Word instruction shifts words left.

Pseudocode Operation

// Shifts words left

Example

PSLLW xmm0, 3

Encoding

Binary Layout
66
+0
0F
+1
71
+2
ModRM
+3
 
Format SSE2
Opcode 66 0F 71 /6
Extension SSE2

Operands

  • dest
    128-bit SSE/AVX register (XMM)
  • src
    8-bit signed immediate