I think that the following shortcut, though comman, can be
dangerous.

> > Also you will have an easier time with code maintenance if
you do the
> > following:
> >         #define CLK     PORTA, 1
> >         #define DQ      PORTA, 0

I prefer to replace each argument (in this case, PORTx and BITx)
with separate equivalents.  This is valid, but I  find that
using one word (e.g. CLK) to represent two items can make
debugging more difficult because ones eye doesn't learn the
rythym of the syntax. (If that makes any sense).

When I'm debugging, this helps me to check each part of the
instruction for accuracy.  (Not that anyone asked, but ...
hey).

Andrew



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