uxtb

Unsigned Extend Byte (Thumb)

UXTB <Rd>, <Rm>

Zero-extends byte to word (Thumb).

Details

The Unsigned Extend Byte instruction zero-extends byte to word (Thumb).

Pseudocode Operation

Rd ← sign/zero-extend(Rm)

Example

UXTB r0, r2

Encoding

Binary Layout
1011001011
Rm
Rd
 
Format Thumb Data Proc
Opcode 0xB2C0
Extension T32 (Thumb)

Operands

  • Rd
    Destination general-purpose register
  • Rm
    Second source / offset general-purpose register