PIC P16F690;

# enable gpsim as a simulator
pragma simulator gpsim;

Main {
     digital_output RC0;
     Loop {
         write RC0, 1;
         delay 1s;
         write RC0, 0;
         delay 1s;
     }
}

Simulator {
    attach_led RC0, 1, 'green';
    stop_after 30s;
    logfile;
    log RC0;
}