It appears my memory has failed me. I found this in a spec note:

If the STATUS register is the *destination for an instruction that
affects the Z, DC or C bits*, then the write to these three bits is
disabled. These bits are set or cleared according to the device logic
[emphasis my own].

Simply having thought about returning from an interrupt might have lead
me to the same conclusion as Dwayne.

Mario

Dwayne Reid wrote:
>
> >The Z bit indicates if the last result was zero. One cannot write (I'm
> >pretty sure) to the Z, D(igit)C(arry) or the C(arry) bits of Status.
> >Clearing Status will actually cause Z=1.
>
> You should not write STATUS, but you *CAN* change the individual bits using
> bcf / bsf instructions.
>
> You will often find code snippets that use 'clrc' or 'setz' (MPASM's built
> in macros) or 'bcf STATUS,C' or 'bsf STATUS,Z'.  These are legal and work
> eintirely as expected.
>
> dwayne
>
> Dwayne Reid   <dwayner@planet.eon.net>
> Trinity Electronics Systems Ltd    Edmonton, AB, CANADA
> (780) 489-3199 voice          (780) 487-6397 fax
>
> Celebrating 15 years of Engineering Innovation (1984 - 1999)
>
> * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
> Do NOT send unsolicited commercial email to this email address.
> My posting messages to Usenet neither grants consent to receive
> unsolicited commercial email nor is intended to solicit commercial
> email.

--
You are entitled to your own opinions; you are not entitled to your own
facts.