ldrb

Load Register Byte (Immediate)

LDRB <Wt>, [<Xn|SP>, #<pimm>]

Loads a byte from memory (zero-extended) using immediate offset.

Details

The Load Register Byte instruction loads a byte from memory (zero-extended) using immediate offset.

Pseudocode Operation

Wt ← Memory[address]

Example

LDRB w3, [x1, #16]

Encoding

Binary Layout
00111001
01
imm12
Rn
Rt
 
Format Load/Store
Opcode 0x39400000
Extension Base

Operands

  • Wt
    Transfer 32-bit integer register (load/store)
  • Xn
    First source / base 64-bit integer register
  • pimm
    Positive immediate offset