Code:

int main(void)
{   
    /* initialize hardware */
    bootLoaderInit();

    /* jump to application if jumper is set */
    if(bootLoaderCondition()){
        uchar i = 0, j = 0;
#ifndef TEST_MODE
        //MCUCR = (1 << IVCE);  /* enable change of interrupt vectors */
        //MCUCR = (1 << IVSEL); /* move interrupts to boot flash section */
#endif
        initForUsbConnectivity();
        do{ /* main event loop */
            usbPoll();

#if BOOTLOADER_CAN_EXIT
            if(exitMainloop){
#if F_CPU == 12800000
                break;  /* memory is tight at 12.8 MHz, save exit delay below */
#endif
               if(--i == 0){
                    if(--j == 0)
                        break;
                }
            }
#endif
        }while(bootLoaderCondition());
    }
    leaveBootloader();
    return 0;
}