汇编程序使用24C256，实现每按一次SW3，指定单元的数据加一；按动SW2，则将指定的单元内容写入24C256芯片的指定单元；按动SW1，则将24C256芯片指定单元的内容读出。

C程序用来验证对24C256的读写是否正确。具体实现方法如下：通过程序对某个地址读出并显示，从而达到验证读写是否正确。

-Assembler using the 24C256, to achieve each time SW3, plus a specified unit of data　pressing the SW2, the unit will write the contents of the specified specified unit 24C256 chip　pressing SW1, 24C256 chips will read out the contents of the specified unit . C program used to verify the 24C256 to read and write is correct. Specific method is as follows: The process of an address read out and displayed, read and write correctly to achieve validation.