Backcourt violation?

[Jimgolf]

I saw this in a FIBA game and was wondering what the NFHS ruling would be. It's similar to one of the questions in the Backcourt Quiz, but seems a little different to me.

Player A1 is dribbling across the halfcourt line, picks up the ball while still straddling the line, drops the ball in the backcourt and picks it up again. Violation?

What if he never controls the ball while attempting to end his dribble, and fumbles in the backcourt?

In the FIBA game, a backcourt violation was called, but I think there is no "two feet and the ball" rule in FIBA. Somehow you're supposed to magically cross the line all at once.

Thanks, and I apologize if this has been asked and answered before.