Routines| A | Time/event identifier from table of A&P |
| Entry | Exit | Meaning |
| 0 | 1 | Never (i.e. end of lesson) |
| 7 | 128 | Time to sit down for assembly |
| 8 | 1 | Teacher has arrived at top floor room in girls' skool |
| 9 | 2 | Teacher has arrived at middle floor room in girls' skool |
| 10 | 4 | Teacher has arrived at Blue room |
| 11 | 8 | Teacher has arrived at Yellow room |
| 12 | 16 | Teacher has arrived at Science lab |
| 31861 | A7 | AND A | |
| 31862 | 1F | RRA | |
| 31863 | 5F | LD E,A | |
| 31864 | 3E00 | LD A,0 | |
| 31866 | 8F | ADC A,A | |
| 31867 | 3C | INC A | |
| 31868 | CB1B | RR E | |
| 31870 | 3002 | JR NC,31874 | |
| 31872 | 87 | ADD A,A | |
| 31873 | 87 | ADD A,A | |
| 31874 | 37 | SCF | |
| 31875 | CB1B | RR E | |
| 31877 | 3004 | JR NC,31883 | |
| 31879 | 87 | ADD A,A | |
| 31880 | 87 | ADD A,A | |
| 31881 | 87 | ADD A,A | |
| 31882 | 87 | ADD A,A | |
| 31883 | 167F | LD D,127 | |
| 31885 | EB | EX DE,HL | |
| 31886 | C9 | RET |