// homework3.h
// 这个文件是用来存放本实验中用到的宏定义和函数的
#include <REG52.H>

#define true  1
#define false 0

unsigned int i = 0;

sbit D1 = P2 ^ 7;
sbit D2 = P2 ^ 6;
sbit D3 = P2 ^ 5;
sbit D4 = P2 ^ 4;
sbit D5 = P2 ^ 3;
sbit D6 = P2 ^ 2;
sbit D7 = P2 ^ 1;
sbit D8 = P2 ^ 0;

sbit ADDR0=P1^0;
sbit ADDR1=P1^1;
sbit ADDR2=P1^2;
sbit ADDR3=P1^3;
sbit ENLED=P1^4;


void Delay(unsigned int t)
{
    while (t--);
}