8259A中断控制器,数码管从一到九反复显示，有中断来时数码管全灭。键盘上有任意键按下或者已经中断了十次就自动退出执行。而且在计算机屏幕上显示这是第几次中断。-8259A interrupt controller, digital control from 1-9 repeatedly shown that when the digital control Quanmie interrupt. Press any key on the keyboard has been suspended 10

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