| Game status buffer

7FC8: Lesson status flags

Various status flags for the current lesson.
Bit(s) | Meaning
--- | ---
0 | End of lesson/playtime (always reset)
1-3 | Unused
4 | Next lines reprimand for the teacher fetching the truant ERIC (toggled by 77AC)
5 | Set after a teacher has found the truant ERIC (see 77AC)
6 | Set after a classroom lesson has started with ERIC present (see F300) (checked by 77AC; reset by 66E6)
7 | Set after EINSTEIN has had a chance to grass on the absent ERIC (see F300), or after dinner has started (see 7C6E) (checked by 77AC; reset by 66E6)
7FC8 | DEFB $00 |