SETF8, SETF16 Evaluation of 8-bit or 16-bit flag values This instruction sets the PSTATE.NZV flags based on the value in the specified general-purpose register. SETF8 treats the value as an 8-bit value. SETF16 treats the value as a 16-bit value. The PSTATE.C flag is not affected by these instructions. This instruction is a data-independent-time instruction as described in About PSTATE.DIT. 0 0 1 1 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 1 0 1 0 SETF8 <Wn> 1 SETF16 <Wn> if !IsFeatureImplemented(FEAT_FlagM) then EndOfDecode(Decode_UNDEF); end; let size : integer{} = 8 << UInt(sz); let n : integer = UInt(Rn); <Wn> Is the 32-bit name of the general-purpose source register, encoded in the "Rn" field. let reg : bits(32) = X{}(n); PSTATE.N = reg[size-1]; PSTATE.Z = if (reg[size-1:0] == Zeros{size}) then '1' else '0'; PSTATE.V = reg[size] XOR reg[size-1]; //PSTATE.C unchanged; 2026-03-12 12:23:09 2025-09_rel_asl1