> >  BCF             INTCON,T0IF       ; clear Timer 0 interrupt flag
> >  BSF             INTCON,T0IE       ; re-enable Timer 0 interrupt (if
> > necessary)
>
> It is pointless to disable then immediately re-enable the timer 0
interrupt.

I just got my response back for the server and noticed that you are actually
clearing the flag and attempting to re-enable the interrupt.  Sorry I didn't
notice that before.

On a PIC an interrupt never disables the individual interrupt that caused
the condition.  The PIC only disables interrupts globally by resetting the
GIE bit in INTCON (at least that's how the PIC 16 works, other families have
different wrinkles).  You therefore don't need to set the T0IE bit because
it is still set.  You do however need to reset the TOIF bit (as you did)
because otherwise you would get an immediate interrupt when interrupts are
re-enabled by the RETFIE instruction at the end of the interrupt service
routine.


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