>I am using a PIC16F84 and when I initiate a interrupt on pin 6(RB0)
>then the program jumps to my interrupt routine...
>
>If I flush a led in the interrupt routine and do a retfie then the =
program
>jumps back to my main loop - OK
>
>If I do a call to Subroutine and the a return to the Interrupt routine=20
>and then a retfie to the main routine, the program never get into the=20
>main program again...Why?
>
>Is the size of the stack smaller than 8 if in a interrupt routine?

I just want to clarify something... when you say that you call a =
subroutine, then return to the interrupt routine, do you mean that you =
are calling the interrupt routine directly, and not getting there via an =
actual interrupt?

I would think that  RETFIE would only work if the routine was triggered =
by an interrupt.

Also, if you were in a subroutine, and an interrupt occurred, the ISR =
would be invoked, and control would return back where it left off, in =
the subroutine, and NOT the main routine...

Steve

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