rev

Reverse Bytes (64-bit)

REV <Xd>, <Xn>

Reverses byte order in a 64-bit register.

Details

The Reverse Bytes instruction reverses byte order in a 64-bit register.

Pseudocode Operation

Xd ← byte-reverse of Xn

Example

REV x0, x1

Encoding

Binary Layout
11011010
110
00000
000011
Rn
Rd
 
Format Data Processing
Opcode 0xDAC00C00
Extension Base

Operands

  • Xd
    Destination 64-bit integer register
  • Xn
    First source / base 64-bit integer register