用汇编语言编写一个时钟程序，在微机屏幕上显示当前时间的时，分，秒。在程序启动后，可键入当前时间，回车键按下后，开始计时-Using assembly language to write a clock procedures, display the current time, divided on the PC screen, seconds. After the program started, can enter the current time, the Enter key is pres