|  | Routines | 
| Prev: 8184 | Up: Map | Next: 81C4 | 
| 81AE | CALL $BAB4 | Update the "{character} is in {room}" tick count, if any. | ||
| 81B1 | CALL $A92C | Move the computer controlled characters. | ||
| 81B4 | CALL $EEC1 | Refresh the current room. | ||
| 81B7 | CALL $F10E | Move the jumping jack. | ||
| 81BA | CALL $F814 | Display any food. | ||
| 81BD | CALL $F277 | Move Herbert. | ||
| 81C0 | CALL $B9D6 | Update and draw characters. | ||
| 81C3 | RET | Return. | ||
| Prev: 8184 | Up: Map | Next: 81C4 |