void count(void); // count the digits from 00 to 99
 volatile *dirf,*dirk,*dira,*outf,*outk,*ina,x;
 volatile int arr[]={0x3F,//0
                          0x06,//1
                          0x5B,//2
                          0x4F,//3
                          0x66,//4
                          0x6D,//5
                          0x7D,//6
                          0x07,//7
                          0x7F,//8
                          0x67,//9
                         };
void setup() {

 dirf=0x30,dirk=0x107,dira=0x21;
 outf=0x31,outk=0x108,ina=0x20;
 *dirf=0xff,*dirk=0x0f,*dira=0x00;
 
volatile char Digit2=0,Digit1=0,inputA=0;
while(1){
    inputA=*ina;
   if(inputA==1)
    {
      Digit2=Digit2+1;
      // delay(318);
    }
    
    if(Digit2==10)
    {
      Digit1++;
      if(Digit1==10)
      {
        Digit1=0;
      }
      Digit2=0;
    }
    *outk=0x01;
    *outf=arr[Digit2];
    *outf=0x00;
    // *outk=0x03;
    //delay(1000);

    *outk=0x02;
    *outf=arr[Digit1];
    *outf=0x00;
    // *outk=0x03;
    // delay(15);
   }
 }
void loop() {

}
void count()
{
  dirf=0x30,dirk=0x107,dira=0x21;
 outf=0x31,outk=0x108,ina=0x20;
 *dirf=0xff,*dirk=0x0f,*dira=0x00;
  volatile char Digit2=0,Digit1=0,inputA=0;
  inputA=*ina;
  delay(1000);
   if(inputA==1)
    {
      Digit2=Digit2+1;
      delay(225);
    }
    
    if(Digit2==10)
    {
      Digit1++;
      if(Digit1==10)
      {
        Digit1=0;
      }
      Digit2=0;
    }
    *outk=0x01;
    *outf=arr[Digit2];
    *outf=0x00;
    *outk=0x03;
    //delay(1000);

    *outk=0x02;
    *outf=arr[Digit1];
    *outf=0x00;
    *outk=0x03;
    delay(100);
   }