#include "header.h"
void setup() {
  init_port();
  volatile char *outf, *outk;
  outf = 0x31; outk = 0x108;
  char row, col;
  /*while(1){
    for(row=0,col=7;row<8,col>=0;row++,col--){   Question 9
      *outk = ~(1<<row);
      *outf = (1<<col);
      *outf = 0x00;
      *outk = 0x00;
    }
  }*/
  while(1){
    for(row=0,col=0;row<8,col<8;row++,col++){   // Question 10
      *outk = ~(1<<row);
      *outf = (1<<col);
      *outf = 0x00;
    }
  }
}