pacib

Pointer Authentication Code for Instruction Address (Key B)

PACIB <Xd>, <Xn>

Signs an instruction address using Key B.

Details

The Pointer Authentication Code for Instruction Address instruction signs an instruction address using Key B.

Pseudocode Operation

Xd ← Xn + SRC2
// Flags affected: N, Z, C, V

Example

PACIB x0, x1

Encoding

Binary Layout
11011010
110
Xn
000001
11111
Xd
 
Format Data Processing
Opcode 0xDAC10400
Extension PAC (Security)

Operands

  • Xd
    Destination 64-bit integer register
  • Xn
    Modifier