Tiny optimizations of bit testing operations

[Dmitry Timoshkov]

"Rein Klazes" <rklazes at xs4all.nl> wrote:

> From the C point of view these bit logics are identical. The compiler
> finds that out easy.

Yes, I know. That's why the optimizations are "tiny". I believe that
the code itself becomes more readable with my changes and makes it
not depend on the optimizations a compiler is capable to perform.

-- 
Dmitry.