123asd

#include <xc.h>
#include <htc.h>
#include <stdio.h>

#pragma config WDTE=OFF, PWRTE=ON, MCLRE=OFF, CP=OFF, CPD=OFF, BOREN=OFF, IESO=OFF

#define FOSC 8000000L

unsigned int nsec, punon = 0, sinon = 0, vihon = 0;

static void interrupt isr(void) // Keskeytyspalveluohjelma
{
    if (T0IF)       // ajastimen TIMER0 keskeytyslippu
    {
        TMR0 = 156;
        T0IF = 0;
        OPTION_REG = 0x00;

        if(nsec < 50 ) nsec++;
        else
        {
            nsec = 0;
        }

        if(nsec < punon) RB5 = 1;
        else RB5=0;

        if(nsec < vihon) RB6 = 1;
        else RB6 = 0;

        if(nsec < sinon) RB7 = 1;
        else RB7 = 0;

    }
}
void main(void)
{
    OSCCON=0x77;
    int punled = 0;
    int sinled = 0;
    int vihled = 0;
    int tila = 1;
    unsigned int i = 0;

    ANSEL = 0;
    ANSELH = 0;

    TRISA = 0xFF;
    TRISB = 0x00;
    TRISC = 0x00;
    PORTA = 0x00;
    PORTB = 0x00;
    PORTC = 0x00;

    OSCTUNE=0x0F;


    OPTION_REG = 0x00;
    TMR0 = 156;
    T0IE = 1;
    GIE = 1;

   for (i = 0; i<60000; i++);

    while(1)
    {
     switch(tila)
     {
         case 1: