haddps

Horizontal Add Packed Single-Precision

HADDPS xmm1, xmm2/m128

Adds adjacent float elements horizontally.

Details

The Horizontal Add Packed Single-Precision instruction adds adjacent float elements horizontally.

Pseudocode Operation

// Adds adjacent float elements horizontally

Example

HADDPS xmm1, xmm2/m128

Encoding

Binary Layout
F2
+0
0F
+1
7C
+2
 
Format SSE3
Opcode F2 0F 7C
Extension SSE3

Operands

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