高精度数字秒表，在pc机上用汇编语言模拟普通数字秒表，实现计时，暂停，继续，存储等功能。-high-precision digital stopwatch, the PCs used assembly language simulation ordinary digital stopwatch, time to achieve, suspended, continued, storage.

这是一个在两台pc机之间通过串口传输文件的汇编程序-This is one of the two PCs via serial port to transfer files to the assembler