https://qooah.com/2011/04/08/%e7%8e%a9%e6%a8%82%e7%84%a1%e9%99%90-nds-%e6%a8%a1%e6%93%ac%e5%99%a8%e3%80%8ands4droid%e3%80%8b%e7%99%bb%e9%99%b8android/