void main()
{  unsigned int x=0;
cmcon=0x07;
 trisb=0;
 trisa=0x20;

 portb=0;
 porta=0;
    while(1)
    {    if(porta.f5==0)
        {   delay_ms(300);
        switch(x)
        {
          case 0:porta=0b00000001;break;
          case 1:porta=0b00000010;break;
          case 2:porta=0b00000100;break;
          case 3:porta=0b00001000;break;
          case 4:porta=0b00010000;break;
          case 5:porta=0b01000000;break;
          case 6:porta=0b10000000;break;
          case 7:portb=0b00000001;break;
          case 8:portb=0b00000010;break;
          case 9:portb=0b00000100;break;
          case 10:portb=0b00001000;break;
          case 11:portb=0b00010000;break;
          case 12:portb=0b00100000;break;
          case 13:portb=0b01000000;break;
          case 14:portb=0b10000000;break;


         }
          x++;
          if(x>=14)x=0;
         }
}   }