pslldq

Shift Double Quadword Left Logical

PSLLDQ xmm1, imm8

Shifts the entire 128-bit register left by bytes.

Details

The Shift Double Quadword Left Logical instruction shifts the entire 128-bit register left by bytes.

Pseudocode Operation

// Shifts the entire 128-bit register left by bytes

Example

PSLLDQ xmm1, 3

Encoding

Binary Layout
66
+0
0F
+1
73
+2
ModRM
+3
 
Format SSE2
Opcode 66 0F 73 /7
Extension SSE2

Operands

  • dest
    XMM
  • count
    Imm