#include<AT89X51.H>

unsigned char segcode[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8
                        ,0x80,0x90,0x88,0x83,0xa7,0xa1,0x86,0x8e};

void delay1m(unsigned int dly)
{
  unsigned char count;
  while(dly!=0)
  {
    count=120;
	while(count>0)
	  count--;
	dly--;
  }
}

void main(void)
{
  unsigned char i;
  i=0;

  while(1)
  {
    delay1m(3750);
	P1=segcode[i];
P2=segcode[i];
P3=segcode[i];
P0=segcode[i];
    i=i+1;
	if(i==16)
	  i=0;
  }
}