code: def p_stop_raise(p):
      
      q = make_number(9, lineno=p.lineno(1)) if len(p) == 2 else p[2]
      z = make_number(1, lineno=p.lineno(1))
      r = make_binary(p.lineno(1), 'MINUS',
                      make_typecast(TYPE.ubyte, q, p.lineno(1)), z,
                      lambda x, y: x - y)
      p[0] = make_sentence('STOP', r)
docs: statement : STOP expr
                     | STOP