Routines| 27860 | 2156E1 | LD HL,57686 | HL references the table at 57686 |
| 27863 | 5E | LD E,(HL) | Point DE at the relevant data table concerning the the door, window, cup or bike |
| 27864 | 2C | INC L | |
| 27865 | 56 | LD D,(HL) | |
| 27866 | 2C | INC L | |
| 27867 | E5 | PUSH HL | |
| 27868 | EB | EX DE,HL | |
| 27869 | CD186C | CALL 27672 | Alter UDG references in play area and update SRB |
| 27872 | E1 | POP HL | |
| 27873 | 7D | LD A,L | |
| 27874 | FE70 | CP 112 | |
| 27876 | 20F1 | JR NZ,27863 | Jump back until all these objects have been initialised |
| 27878 | 21F47F | LD HL,32756 | Doors flags |
| 27881 | 3618 | LD (HL),24 | Set bits 3 and 4: skool gate and boys' skool door open |
| 27883 | C9 | RET |
| Address | Contents | Object |
| 57686 | 56637 | Left study door (closed) |
| 57688 | 57088 | Right study door (closed) |
| 57690 | 56576 | Science lab storeroom door (closed) |
| 57692 | 57149 | Boys' skool door (closed) |
| 57694 | 63744 | Skool gate (closed) |
| 57696 | 56064 | Drinks cabinet door (closed) |
| 57698 | 55040 | Top floor window (closed) |
| 57700 | 55552 | Middle floor window (closed) |
| 57702 | 57856 | Bike (chained to tree) |
| 57704 | 64000 | Skool gate (open) |
| 57706 | 57405 | Boys' skool door (open) |
| 57708 | 56081 | Cups on shelf in boys' skool (empty) |
| 57710 | 56337 | Cup on shelf in girls' skool (empty) |