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Routines |
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Used by the routines at HandlerDoorClosed and HandlerDoorLocked.
Writes a sprite ID to both halves of a door.
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| SetDoorSprites | 37472 | PUSH IX | Copy IX into HL, as the address of this half of the door. | |||||||
| 37474 | POP HL | |||||||||
| 37475 | LD (HL),A | Update the sprite ID of this half of the door. | ||||||||
| 37476 | EX AF,AF' | Hold the sprite ID in AF'. | ||||||||
| 37477 | LD A,L | Fetch the low byte of the address of this half. | ||||||||
| 37478 | XOR %00001000 | Flip bit 3, to get the address of the other half of the door. | ||||||||
| 37480 | LD L,A | Keep the address of the other half of the door in L. | ||||||||
| 37481 | EX AF,AF' | Fetch the sprite ID from AF'. | ||||||||
| 37482 | LD (HL),A | Update the sprite ID of the other half of the door. | ||||||||
| 37483 | RET | Return. | ||||||||
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