> With respect to read-modify-write, BSF is not safe. BSF/BCF
> operate by reading the port, altering the relevant bit, and writing
> the port. An operation that definitively sets the value of every
> single bit (e.g. movwf) is the *only* completely safe way to deal
> with RMW.

Yes, good point, my bad. Other ways except MOVWF do depend
on the user knowing what conditions (can) exist on the pins

-- 
http://www.piclist.com PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist