#include<reg51.h>
#include<intrins.h>
#define uchar unsigned char
#define uint unsigned int
#define WRITE_SECOND 0X80
#define WRITE_MINUTE 0X82
#define WRITE_HOUR 0X84
#define READ_SECONG 0X81
#define READ_MINUTE 0X83
#define READ_HOUR 0X85
#define WRITE_PROTECT 0X8E
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