On Sun, 11 Jan 2004 12:36:25 +0100, "Jan-Erik Soderholm XA (TN/PAC)"
wrote:

<snip of my own idiotic post>
>
>Not sure. You are, in fact, still doing just the same thing as
>a BCF/BSF, but using your own code. *Any* read from a PORTx register,
>might have a bit driven to an *unknown* value by some external source.
>
>The only way to be sure, is to have a shadow register where *all*
>updates/writes are made, then write this register using MOVWF
>to the PORT regsiter. So there are never any reads from the PORT reg
>in this case.
>

You're right, of course. I just wish there were a way to do a 'cancel'
on stupid posts. I think I'll just go hide in the corner now.


Regards, Bob

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