#define Check_bit(var,pin)     var & (1<<pin)
sbit ST1 at RB0_bit; // for display
sbit DS1 at RB1_bit;
sbit SH1 at RB2_bit;


////////********************************************************************///
char num1[16];//
//const char segment[]={63,6,91,79,102,109,125,7,127,111}; //for CC
const char segment[]={192,249,164,176,153,146,130,248,128,144}; // for CA
const char segbit[]={0x80,0x40,0x20,0x10,0x08,0x04,0x02,0x01};
char x=0 ,dd,ggg,colomn1,colomn   ;
unsigned int number1,number2, cont;
char segmant2[1];// 1 this mean only 8 7seg  if has 16 7seg then char segmant2[2]
void display_7seg();


//***************************************************************************//
//Timer0
//Prescaler 1:16; TMR0 Preload = 6; Actual Interrupt Time : 2 ms

//Place/Copy this part in declaration section
void InitTimer0(){
  OPTION_REG         = 0x83;
  TMR0                 = 6;
  INTCON         = 0xA0;
}

void Interrupt(){
  if (TMR0IF_bit){
    TMR0IF_bit         = 0;
    TMR0                 = 6;
    //Enter your code here
     ggg++;
     cont++;
  }
}


void main ()
{
 char mm=0;
 trisb=0;
 portb=0;
 InitTimer0();
 cmcon=7; // Configure AN pins as digital

  while(1)
          {
            if(cont>500)
                        {
                           number1++;
                           if(number2 !=0)number2--;
                           if(number2==0)number2=9999;
                           if(number1>=10000)number1=0;
                           num1[0]=number1/1000; // عداد تصاعدي
                           num1[1]=number1/100%10;
                           num1[2]=number1/10 %10;
                           
                           num1[3]=number1%10;// عداد تنازلي
                           num1[4]=number2/1000;
                           num1[5]=number2/100%10;
                           num1[6]=number2/10 %10;
                           num1[7]=number2%10;
                           
                           num1[8]=1;
                           num1[9]=2;
                           num1[10]=3;
                           num1[11]=4;
                           num1[12]=5;
                           num1[13]=6;
                           num1[14]=7;
                           num1[15]=8;

                         cont=0;
                        }
                if(ggg>=3){ggg=0; display_7seg();}
     }
}



///*****************************************************************//
void display_7seg()
{ char y;
 dd=8;
 for(x=0;x<32;x++){ds1=1;sh1=1;sh1=0;}// OFF all 7 seg
 ST1=1;st1=0;
 // data2 enable  data1 enable
 for(y=0;y<2;y++) // هنا عندنا 16 سفن سكمنت فنحن نتعامل مع كل 8 على حده لذا نعد الى 2
             {
                 for(x=0;x<8;x++) // نرسل تفعيل الكمن لانه يرسل اول يظهر بل اخير
                         {
                          if(Check_bit(segbit[7-colomn],7-x))ds1=1;
                          else DS1=0;
                          SH1=0;SH1=1;
                         }
                 for(x=0;x<8;x++) //
                                  {
                                   if(Check_bit(segment[num1[colomn1+dd]],7-x))DS1=1;
                                   else DS1=0;
                                   SH1=0;SH1=1;
                                  }
                 if(dd>=8)dd=dd-8;
              }
          ST1=1; ST1=0;
          colomn++;
          colomn1++;

          if(colomn==8)colomn=0;
          if(colomn1==8)colomn1=0;

}

//******************************************************//