lhbrx

Load Halfword Byte-Reverse Indexed

lhbrx RT, RA, RB

Loads a halfword from memory, byte-reverses it, and stores it in a register.

Details

Loads a halfword from memory at address (RA|0) + RB, byte-reverses it, and stores the result in RT. No status flags are affected. This is part of the Base category and is commonly used for endianness conversion when reading network or file data.

Pseudocode Operation

EA ← (RA|0) + RB
RT ← byte_reverse_16([EA])

Programming Note

These instructions have the effect of loading and storing data in the opposite byte ordering from that which would be used by other Load and Store instructions.

Example

lhbrx r3, r4, r5

Encoding

Binary Layout
31
0
RT
6
RA
11
RB
16
790
/
 
Format X-form
Opcode 0x7C00062C
Extension Base

Operands

  • RT
    Target
  • RA
    Base
  • RB
    Index