| Routines

63734: Check whether MR CREAK can reveal his safe combination letter

Used by the routine at 63191. Returns with the carry flag reset if we're dealing with MR CREAK and ERIC has not yet opened the safe.
Input
H | Teacher's character number (163-166)
63734 | LD BC,61889 | Prepare BC (61889='SILENCE! OR I'LL CANE THE LOT OF YOU') before returning
63737 | LD A,H | A=teacher's character number
63738 | CP 166 | Return with the carry flag set if it's not MR CREAK (166)
63740 | RET C
63741 | LD A,(32746) | Collect the game mode indicator from 32746
63744 | DEC A | Set the carry flag if it's demo mode or ERIC has already opened the safe
63745 | CP 2
63747 | CCF
63748 | RET |