vphaddbd

Vector Packed Horizontal Add Byte to Doubleword

VPHADDBD xmm1, xmm2/m128

Adds adjacent bytes to doublewords.

Details

The Vector Packed Horizontal Add Byte to Doubleword instruction adds adjacent bytes to doublewords.

Pseudocode Operation

// Adds adjacent bytes to doublewords

Example

VPHADDBD xmm1, xmm2/m128

Encoding

Binary Layout
VEX
+0
opcode
+3
ModRM
+4
 
Format XOP
Opcode 8F ... C2
Extension XOP

Operands

  • dest
    128-bit XMM SIMD register
  • src
    128-bit XMM SIMD register or Memory operand