    DEFINE  def64 string_64_char___123456789ABCDEF_123456789ABCDEF_123456789ABCDEF
    DEFINE  def129 def64_def64
    DEFINE  def259 def129_def129
    DEFINE  def519 def259_def259

    ;; too long line after substitutions
    DB def519_def519_def519_def519, def519_def519_def519_def519
