add

Add (Extended Register 64-bit)

ADD <Xd|SP>, <Xn|SP>, <R><m> {, <extend> {#<amount>}}

Adds a 64-bit register and an extended register value.

Details

The Add instruction adds a 64-bit register and an extended register value.

Pseudocode Operation

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

Example

ADD x0, x1, Rm

Encoding

Binary Layout
10001011
001
Rm
option
imm3
Xn
Xd
 
Format Data Processing (Register)
Opcode 0x8B200000
Extension Base

Operands

  • Xd
    Destination 64-bit integer register
  • Xn
    First source / base 64-bit integer register
  • Rm
    Second source / offset general-purpose register