[ebarker]

The switch statement essentially constructs the same code as a stack of if/then/else statements.

The switch is useful because it is a way of documenting code and representing it as a 1 of n selector.

This is a plenty fast processor for what you are probably going to try and do so I wouldn't worry about it.

Worrying about these types of things for your i/o routines generally isn't necessary as it was say 30 years ago.