> That may be true, but don't forget that  RETFIE  does it for
> you anyway (that being its /raison d'etre/ - otherwise it's the
> same as  RETURN)  :-)

At that point in Sean's code the interrupts hadn't yet been
enabled Mr W, so reaching the RETFIE would be a tad on
the difficult side ;-)

I've made occassional use of the difference between RETURN
and RETFIE. GIE is turned off by the interrupt process and if
you end the ISR with RETURN, it stays off. This prevents any
subsequent event entering the ISR until code turns GIE back on

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