rev

Reverse Bytes

REV <Wd>, <Wn>

Reverses byte order (Endian swap) in a 32-bit register.

Details

The Reverse Bytes instruction reverses byte order (Endian swap) in a 32-bit register.

Pseudocode Operation

Wd ← byte-reverse of Wn

Example

REV w0, w1

Encoding

Binary Layout
01011010
110
00000
000010
Rn
Rd
 
Format Data Processing
Opcode 0x5AC00400
Extension Base

Operands

  • Wd
    Destination 32-bit integer register
  • Wn
    First source / base 32-bit integer register