|  | Routines | 
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| 
Used by the routine at 36990.
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| 37004 | XOR A | Set room of "closed Trap Door" to 0 (i.e. remove from Trap Door room)... | ||
| 37005 | LD (43188),A | ... | ||
| 37008 | INC A | Increase A to 1 (index of Trap Door room) | ||
| 
This entry point is used by the routine at 36996.
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| 37009 | LD (43437),A | Set value in A as the current room of "open Trap Door"... | ||
| 37012 | LD (43450),A | ...and marker (preventing Berk and Drutt passing door lid) | ||
| 37015 | RET | Return | ||
| Prev: 36996 | Up: Map | Next: 37016 |