MorganS:
@zhomeslice, With 295 posts and 66 karma points, I can't imagine why you would be asking that basic question. Translation problem? "State" means the existence of HIGH or LOW on the pin.
Not a question just a way of saying what I already know...
Thanks for pointing this out I Restated it without the "How I look at it" part
Checking the motors direction is easy
At the moment when A goes High if B is High then the motor is turning one way.
Else if B is Low then the motor is turning the other way.
You can also do this assessment when A goes Low
in addition B changes voltage half way between when A voltage change. and so when b changes from low to high you can look at a to see what voltage it is in.