#pragma code isr_hndl=0x08
void high_isr(void)
{
   _asm goto timer_isr   _endasm
}
#pragma code

#pragma code low_vector=0x18
void interrupt_at_low_vector(void)
{
   _asm goto   low_isr_h _endasm
}   
#pragma code

   T0CON=0b01000001;
   TMR0L=0x00;
   TMR0H=0x00;
   RCONbits.IPEN=1;   //С приоритет на прекъсванията.
   INTCON=0b00100000;   //Разрешено е прекъсване само от TMR0;
   INTCON2=0b10000100;   //ТМR0 висок приоритет.

   T1CON=0b00110100;   //TMR1 1/8 delitel, registers write in 2 8-bit words
   PIR1bits.TMR1IF=0;PIE1bits.TMR1IE=1;IPR1bits.TMR1IP=0;
   TMR1H=tmr1h;TMR1L=tmr1l;

   T1CONbits.TMR1ON=1;
   TMR0L=tmrval;
   T0CONbits.TMR0ON=1;   //Разрешава работата на TMR0.
   INTCONbits.GIE=1;   //Разрешава прекъсванията.
   INTCONbits.PEIE=1;

#pragma interrupt timer_isr
void timer_isr(void)
{
   T0CONbits.TMR0ON=0;
   INTCONbits.TMR0IF=0;

   if(count==0)
   {
      count=62;//нулира едни променливи
   }
   else
   {
      count--;
      //Прави нещо по портовете
      TMR0L=tmrval;
      T0CONbits.TMR0ON=1;
}

#pragma interruptlow low_isr_h
void low_isr_h(void)
{
   unsigned char i;
   if(PIR1bits.TMR1IF == 1)
   {
      PIR1bits.TMR1IF=0;
      T1CONbits.TMR1ON=0;
   //вика една функция
      TMR1H=tmr1h;TMR1L=tmr1l;
      T1CONbits.TMR1ON=1;
   }
}

#pragma code

void InterruptHandlerHigh(void);
void InterruptHandlerLow(void);

// For more information see 80202g.pdf, section 19, Interrupts.
void WorkAroundInterruptBug(void)   {
  _asm
    POP
    goto InterruptHandlerHigh
  _endasm
}

//--------------------------------------------------------------------
// High priority interrupt vector
#pragma code InterruptVectorHigh = 0x08
void InterruptVectorHigh( void )   {  _asm    CALL WorkAroundInterruptBug, 1    _endasm   }

//--------------------------------------------------------------------
// Low priority interrupt vector
#pragma code InterruptVectorLow = 0x18
void InterruptVectorLow( void )      {  _asm    goto InterruptHandlerLow      _endasm   }

//--------------------------------------------------------------------
// High priority interrupt routine
#pragma code
#pragma interrupt InterruptHandlerHigh

void InterruptHandlerHigh( void )   {
static uint8 counter = 2;
   // INT0 external interrupt come from short circuit protection built with
   // comparator TLC3702,MC74HC08ADR2,MC74VHC1G08DTT and MC74VHC1G04D
   if( INTCONbits.INT0IE ) {
      if( INTCONbits.INT0IF ) {      
         INTCONbits.INT0IF = 0;
                                  // ... Put your code here ...
      }
   }

   // PWM servo rate TMR2 interrpt
   if( PIR1bits.TMR2IF )   {      // TMR2IF is set every 300us ( TMR2Postscaler12 )
      PIR1bits.TMR2IF = 0;      // Clear TMR2 interrupt flag
      // .... Put your code here ....
   }
}


//--------------------------------------------------------------------
// Low priority interrupt routine
#pragma code
#pragma interrupt InterruptHandlerLow nosave=section("MATH_DATA"),section(".tmpdata")
void InterruptHandlerLow(void) {
// ... Put your code here ...
}