UXTB Unsigned extend byte This instruction extracts an 8-bit value from a register, zero-extends it to the size of the register, and writes the result to the destination register. UBFM 0 1 0 1 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 1 1 1 UXTB <Wd>, <Wn> UBFM <Wd>, <Wn>, #0, #7 Unconditionally <Wd> Is the 32-bit name of the general-purpose destination register, encoded in the "Rd" field. <Wn> Is the 32-bit name of the general-purpose source register, encoded in the "Rn" field. 2026-03-12 12:23:09 2025-09_rel_asl1