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Routines |
| Prev: 8003 | Up: Map | Next: 8055 |
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Used by the routine at GameInitialise.
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Start with Madrid, as it's the first location in the table Trashman can travel to (London doesn't count, that's the first game!)
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| Initialise_LocationStates | 803A | LD HL,$8EAA | Set a pointer in HL for the first location state: Madrid_State. | |
| 803D | LD DE,$0011 | Set 0011 in DE, which is the count of data before the location name starts. The location names vary in length but the data for them does not. | ||
| 8040 | LD B,$0D | Set a counter in B of the number of locations which have a playable level for Trashman (0D - one less than the total which includes London). | ||
| Initialise_LocationState | 8042 | LD (HL),$00 | Mark this location as: "Not visited". | |
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Keep moving forward one byte until the termination bit is found, signifying the final character of the location name.
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| FindEndCharacter_Loop | 8044 | INC HL | Increment HL by one. | |
| 8045 | BIT 7,(HL) | Jump to FindEndCharacter_Loop if the terminator bit is not set. | ||
| 8047 | JR Z,FindEndCharacter_Loop | |||
| 8049 | ADD HL,DE | Move HL to point to the next location state. | ||
| 804A | DJNZ Initialise_LocationState | Decrease the location counter by one and loop back to Initialise_LocationState until all of the location states have been processeed. | ||
| 804C | LD A,($EFFB) | Reset all the bits in *GameState_2 except for the 1UP/ 2UP choice. | ||
| 804F | AND %00100000 | |||
| 8051 | LD ($EFFB),A | |||
| 8054 | RET | Return. | ||
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