https://blog.faceutil.com/2017/03/26/%ec%9c%88%eb%8f%84%ec%97%90%ec%84%9c-%ea%b3%a0%ec%a0%84%ea%b2%8c%ec%9e%84-%ec%8b%a4%ed%96%89%ed%95%98%ea%b8%b0-dosbox-%ec%9d%b4%ec%9a%a9-%ce%b1/