代码说明了一个ps2口驱动和编程方法。主要是鼠标,当鼠标产生中断时，主板上的蜂鸣器和运行灯都有反映。移动鼠标或点击鼠标的左右键，发现主板有反映。注意，因为程序并没有驱动滚轮，所以鼠标滚轮不能产生中断。--PS2 port driver and programming method. When mouse generates an interruption, alarm and light will have response. You could move mouse or hit the left or right button, and observe the reaction of motherboard.