3.c

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#include<reg52.h>
#include<intrins.h>
#define uint unsigned int 
#define uchar unsigned char
uint m,n,t,j,k,flag1,i;
sbit dula=P2^6;
sbit wela=P2^7;
uint t1,t2,t3,t4,t5,t6,t7,flag,flag1,flag2,flag3,flag4,flag5,flag6,flag7;
uchar code table[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71};
uchar code table1[]={0xfe,0xfd,0xfb,0xf7,0xef,0xdf,0xbf};
uchar code table2[]={0x76,0x79,0x38,0x3f};
void delay()
{
  for(j=10;j>0;j--)
    for(k=10;k>0;k--);
}

void display1()
		{
			P0=table2[0];
			dula=1;
         dula=0;
         P0=table1[0];
         wela=1;
         wela=0;
			delay();
			P0=0xff;
         wela=1;
         wela=0;	
		
			P0=table2[1];
			dula=1;
         dula=0;
         P0=table1[1];
         wela=1;
         wela=0;
			delay();
			P0=0xff;
         wela=1;
         wela=0;	
	
			P0=table2[2];
			dula=1;
         dula=0;
         P0=table1[2];
         wela=1;
         wela=0;
			delay();
			P0=0xff;
         wela=1;
         wela=0;	
			
			P0=table2[2];
			dula=1;
         dula=0;
         P0=table1[3];
         wela=1;
         wela=0;
			delay();
			P0=0xff;
         wela=1;
         wela=0;	
			
			P0=table2[3];
			dula=1;
         dula=0;
         P0=table1[4];
         wela=1;
         wela=0;
			delay();
			P0=0xff;
         wela=1;
         wela=0;	
			
		}
void display(uint m,uint n)
		{
			P0=table[m];
			dula=1;
         dula=0;
         P0=table1[n];
         wela=1;
         wela=0;
			delay();
			P0=0xff;
         wela=1;
         wela=0;
		}

void main()
		{
			m=0xfe;
			TMOD=0x11;
			EA=1;
			ET0=1;
			ET1=1;
			TH0=0xdc;
			TL0=0x00;
			TR0=1;
			t1=7;
			t2=6;
			t3=5;
			t4=4;
			t5=3;
			t6=2;
			while(1)
				{
						if(flag1==1&&flag3==0)
								{
									flag1=0;
									t6--;
									if(t6==-1)
										{
											t6=9;
											t5--;
										}
									if(t5==-1)
										{
											t5=9;
											t4--;
										}
									if(t4==3&&t5==9&&t6==8)
										{
											flag3=1;
										}
								}
						display(t1,0);
						display(t2,1);
						display(t3,2);
						display(t4,3);
						display(t5,4);
						display(t6,5);	
						if(flag4==1)
								{
									flag4=0;
									P1=_crol_(m,1);
									m=P1;
								}
						if(flag3==1)
								{
									flag3=0;
									TR1=1;
									flag1=0;
									P1=0xff;
									while(1)
										{
											if(flag1==1)
												{
													flag1=0;
													P1=~P1;
												}
											if(flag7==1)
												{
													TR1=0;
													P1=0xff;
													while(1)
														{
															display1();	
														}
												}
										}
									
								}	
				}
		}
void inter() interrupt 1 using 1
		{
		
			TH0=0xdc;
			TL0=0x00;
			flag++;
			if(flag==10)
				{	
					flag1=1;
					flag=0;
					flag5++;
					if(flag5==5)
							{
								flag5=0;
								flag4=1;
							}
				}	
		}


void inter1() interrupt 3 using 2
		{
		
			TH1=0xdc;
			TL1=0x00;
			flag6++;
			if(flag6==300)
					{
						flag6=0;
						flag7=1;
					}

	
		}