Function format_and_save_to_slot_one 

pub fn format_and_save_to_slot_one<const ACTIONS: usize, const SCORES: usize>(
    port: &mut ControllerPort,
    name: &str,
    title: &str,
    profile: &Profile<ACTIONS, SCORES>,
) -> Result<(), CardError>

format_and_save on the controller-1 memory-card slot. This is the call that can erase a card’s directory; reach it only from an explicit “format this card?” answer.