How the heck do i enable the external interrupts. Neither EXT0 / EXT1 work when i use KEIL C51. ( I have not tried asm since my project is mainly hw. ( though i need to make the software later )

I have tried #pragma INTVECTOR (0x8000)
but nothing seems to work.

NB.
One oddity that i have noticed is that a function that is not called
anywhere as this one:

//declaration LED_flash used to flash status LEDs on frontpanel
void LED_flash(void) using 2
{
//bla bla bla :-) //this code works if i skip using 2
}

Messes up my code although it is not called from anywhere - i mean anywhere.

Has anyone of you got at project that you could mail me / send me hints?
Use my direct mail: 6831@e.iha.dk

Regards
Jes Ramsing

NB. To be used in my final project as a computer engineer - Engineering college of Aarhus Denmark