Macro gba_proc_macro::bool_bits

bool_bits!() { /* proc-macro */ }

Generates one or more virtual bool fields within a type.

You must use this within an impl block for a tuple struct that has an integral type as the 0th field.

Give the type of self.0, a comma, and then a Group, which itself contains comma separated Group values, each of which should be formatted as (bit, field_name), no more than one per bit. Something like this:

impl Demo {
  bool_bits!(
    u16,
    [
      (3, cgb_mode),
      (4, page1_enabled),
      (5, hblank_interval_free),
      (6, object_memory_1d),
      (7, force_blank),
      (8, display_bg0),
      (9, display_bg1)
    ]
  );
}