| Game status buffer

7FC9: Lesson signal flags

Bits 0-3 are used by the classroom-based command lists to indicate that or check whether a teacher has arrived at the classroom door to start the lesson.
Bit(s) | Meaning if set
--- | ---
0 | Teacher has arrived at the Map Room
1 | Teacher has arrived at the Reading Room
2 | Teacher has arrived at the Exam Room
3 | Teacher has arrived at the White Room
4-6 | Unused
7 | EINSTEIN is speaking (set by 7CAF; checked by 79BA and 7CC8; reset by 79CA)
7FC9 | DEFB $00 |