<It is not a bad idea to make empty Interupt subroutines.
This gets you a RETI if you acidently call one.
Better: It calls an error subroutine, or sets some error flag.

when I start a new project, the first file I include is my "device specific interrupt mosule"

it looks like this

//////////////////////////////////////////////////////////////////////
//
//  FILE:     F12xISR.C
//
//  COPYRIGHT: Copyright Twin Vision n.a. 2004
//
//  ISR template for the f12x




#include "WDdefs.h"


////////////////////////////////////////////////////////////
//
//  FUNCTION: void Icrash (void)
//
//  catcher for illegal interrupts
//

void Icrash (void)
{
while (1): // breakpoint here
}  // end Icrash


////////////////////////////////////////////////////////////
//
//  ISR 0  External interrupt 0
//

void EI0isr0 (void) interrupt 0 using 0
{
  Icrash();
}  // end EI0isr0


////////////////////////////////////////////////////////////
//
//  ISR 1  Timer 0 interrupt
//

void T0isr1  (void) interrupt 1 using 0
{
  Icrash();
} // end T0isr1


////////////////////////////////////////////////////////////
//
//  ISR 2  External interrupt 1
//

void EI1isr0 (void) interrupt 2 using 0
{
  Icrash();
}  // end EI1isr0


////////////////////////////////////////////////////////////
//
//  ISR 3  Timer 1 interrupt
//

void T1isr3 (void) interrupt 3 using 0
{
  Icrash();
} // timers_isr1


////////////////////////////////////////////////////////////
//
//  ISR 4 UART 0 
//

void U0isr4 (void) interrupt 4 using 0
{
  Icrash();
}  // end U0isr4




////////////////////////////////////////////////////////////
//
//  ISR 5 T2 
//

void T2isr5 (void) interrupt 5 using 0
{
  Icrash();
}  // end T2isr5




////////////////////////////////////////////////////////////
//
//  ISR 6 SPI 
//

void SPIisr6 (void) interrupt 6 using 0
{
  Icrash();
}  // end SPIisr6

etc  ... etc ...

It serves two purposes
1) all interrupts are 'caught'
2) all interrupt vectors are correctly named (I never screw up on an interrupy number)

All ISR work is done as a modification of these 'routines'

Erik