利用通用微机实验箱实现文字冒险游戏《赎罪之钟》。对于正在进行微机原理创新实验的大学生很实用。接线方法：

PA7~PA0接数码管段码口，PB5~PB0接数码管位码口，PC7~PC0接LED灯，8253计数器0的CLK接1MHZ，GATE接5V，OUT接IRQ，8253地址D400H，8255A基地址D408H。-The use of general-purpose microprocessor to achieve the experimental box text adventure game " Atonement bell."　Microcomputer Principle to the ongoing innovation of undergraduates is very practical. Wiring Method: PA7 ~ PA0 access digital pipe yards mouth, PB5 ~ PB0 connected digital bit code mouth, PC7 ~ PC0 connected LED lights, 8253 Counter 0 CLK pick 1MHZ, GATE then 5V, OUT connected to IRQ, 8253 Address D400H, 8255A base address D408H.