本方案是利用8255芯片，用汇编语言编写的4人抢答器代码-this program is to use 8255 chip, using assembly language prepared by the four people Responder code

本抢答器可实现8个人或8个团队参加比赛，其中8个人或8组代表的编号为1，2，3，4，5，6，7，8。每个人或团队拥有一个抢答器按钮，抢答器的按钮与选手分别对应，为s1,s2,s3,s4,s5,s6,s7,s8.-The Responder can be realized eight individuals or eight teams participate in the competition, in which eight individuals or representatives of