[PIC] Problem with Interrupt - 12F683 MikroC code

unsigned char a=0;

void interrupt ()
{
   GPIO.F1 = ~a;     //Toggle GP1 at each interrupt occurrence 
   INTCON.F0 = 0;   //Clear INT flag
}

void main()
{
     ANSEL = 0;
     CMCON0 = 7;
     TRISIO.F0 = 0;     //Continuous blinking LED on this port
     TRISIO.F1 = 0;     //This port toggles whenever interrupt occurs
     TRISIO.F2 = 1;     //Making GP2 as input for interrupt

     while(1)
     {
        INTCON = 0xD0;   //Enable Global interrupt and INT
        {
           GPIO.F0 = 0;    
           Delay_ms(100);
           GPIO.F1 = 1;
           Delay_ms(100);
       }
     }
}

     while(1)
     {
        INTCON = 0xD0;   //Enable Global interrupt and INT
        {
           GPIO.F0 = 0;    
           Delay_ms(100);
           GPIO.F1 = 1;  [COLOR="#FF0000"]<<<<<<<< Did you mean GPIO.F0 = 1; ??????[/COLOR]
           Delay_ms(100);
       }
     }