#include<reg52.h>
#include<intrins.h>
#define uchar unsigned char
#define uint unsigned int
uchar count,count0,flag;
uint a,b,c,d,e,f,i;
unsigned long int disnum;
sbit dula=P2^7;
sbit wela=P2^6;
sbit beep=P2^0;
uchar code tabledu[]={
0x3f,0x06,0x5b,0x4f,
0x66,0x6d,0x7d,0x07,
0x7f,0x6f,0x77,0x7c,
0x39,0x5e,0x79,0x71};
void display(uchar,uchar,uchar,uchar,uchar,uchar);
void delay(uchar);
void dengfeng();
void main()
{	
	
	
	EA=1;
	ET1=1;
	TMOD=0x10;
	TH1=(65536-50000)/256;
	TL1=(65536-50000)%256;
	TR1=1;


	ET0=1;
	TMOD=0x10;
	TH0=(65536-50000)/256;
	TL0=(65536-50000)%256;
	TR0=1;

	disnum=765432;
	i=0;
	while(1)
		{	
		
			if(count==2)
				{	
				 count=0;
				if(count0==10)
					  	   {
							 count0=0;
							 dengfeng();
							}
			
				 if(disnum==765400)
					{
						
							while(i<5)
								{
								  P1=0x00;
								  delay(200);
								  P1=0xff;
								  i++;
								 }
					while(1)
						{
							display(a,b/10000,c/1000,d/100,e/10,f%10);
						}	
					}		
					disnum--; 
					
		
				
			
				a=disnum/100000;
				b=disnum%100000;
				c=b%10000;
				d=c%1000;
				e=d%100;
				f=e%10;
		        display(a,b/10000,c/1000,d/100,e/10,f%10);
				
			}
	
	}
}

void  tim1() interrupt 3 
{
	TH1=(65536-50000)/256;
	TL1=(65536-50000)%256;
	count++;
}

void tim0() interrupt 1 
{
	TH0=(65536-50000)/256;
	TL0=(65536-50000)%256;
	count0++;
}
void display( uchar liu, uchar wu ,uchar si, uchar san,uchar er,uchar yi)
{
	P0=0xff;//消除余輝
	wela=1;
	wela=0;
	P0=tabledu[liu];
	dula=1;
	dula=0;
	P0=0xfe;
	wela=1;
	wela=0;
	delay(10);
	
	P0=0xff;
	wela=1;
	wela=0;
	P0=tabledu[wu];
	dula=1;
	dula=0;
	P0=0xfd;
	wela=1;
	wela=0;
	delay(10);


	P0=0xff;
	wela=1;
	wela=0;
	P0=tabledu[si];
	dula=1;
	dula=0;
	P0=0xfb;
	wela=1;
	wela=0;
	delay(10);

	P0=0xff;
	wela=1;
	wela=0;
	P0=tabledu[san];
	dula=1;
	dula=0;
	P0=0xf7;
	wela=1;
	wela=0;
	delay(10);

	P0=0xff;
	wela=1;
	wela=0;
	P0=tabledu[er];
	dula=1;
	dula=0;
	P0=0xef;
	wela=1;
	wela=0;
	delay(10);

	P0=0xff;
	wela=1;
	wela=0;
	P0=tabledu[yi];
	dula=1;
	dula=0;
	P0=0xdf;
	wela=1;
	wela=0;
	delay(10);
}

void dengfeng()
{
		flag=0xfe;
	while(1)
	{	
		P1=flag;
		beep=0;
	

		delay(10);
		beep=1;
	
		delay(10);
		flag=_crol_(flag,1);
		
	}
}
void delay(uchar x)
{
	uchar a,b;
	for(a=x;a>0;a--)
		for(b=500;b>0;b--);	
}