0010nnnnmmmm1100
op1 ← SignExtend32(Rm);
op2 ← SignExtend32(Rn);
temp ← op1 ⊕ op2;
t ← INT (temp< 0 FOR 8 > = 0);
t ← (INT (temp< 8 FOR 8 > = 0)) ∨ t;
t ← (INT (temp< 16 FOR 8 > = 0)) ∨ t;
t ← (INT (temp< 24 FOR 8 > = 0)) ∨ t;
T ← Bit(t);