本程序采用汇编语言编写，具体功能是实现双字节数据有符号无符号，乘以单字节数据，可以衍生出双字节乘以双字节程序。-This program written in assembly language using the specific function is to achieve double-byte data signed unsigned, multiplied by a single byte of data can be derived from double-byte multiplied by the double-byte program.