Re: [avr-gcc-list] interrupt optimization

[Lars Noschinski]

* Joerg Wunsch <address@hidden> [2006-02-03 08:58]:
> Lars Noschinski <address@hidden> wrote:
>
> > If the function call is the last thing you need to do, you can also
> > replace the call by a jmp instruction (of course, you may not push
> > something to the stack).
>
> You'd need to enable interrupts before, otherwise you'll end up stuck
> with interrupts disabled, as there won't be a final RETI.

Sorry, I forgot to mention, that I marked the jumped-to instruction as
SIGNAL.

> Compared to that, the overhead of an additional call vs. jump is
> neglicible.

That's right, but doing a call and a ret(i) afterwards is more to type
;)