This instruction is an alias of
The equivalent instruction is
- Is the 64-bit name of the general-purpose destination register.
- Is the 64-bit name of the general-purpose source register.
Reverse Bytes reverses the byte order in a 64-bit general-purpose register.
When assembling for Arm®v8.2, an assembler must support this pseudo-instruction. It is optional whether an assembler supports this pseudo-instruction when assembling for an architecture earlier than Armv8.2.