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Routines |
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Used by the routines at TestSeventhMarker and CombineCharacterRoom.
Looks the object up, then reads its attribute through GetObjectAttributeValue.
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| ProcessObjectAttribute_LookObjectRun | 51398 | PUSH BC | Call FetchObjectDataPointer to look up that object. | |
| 51399 | PUSH AF | |||
| 51400 | LD A,B | |||
| 51401 | CALL FetchObjectDataPointer | |||
| 51404 | LD A,B | Take the count, then call GetObjectAttributeValue to get object attribute value. | ||
| 51405 | CALL GetObjectAttributeValue | |||
| 51408 | ADD A,(IX+3) | Add the object's third parameter, and go to ProcessObjectAttribute_LookObjectRun_0 when the sum does not carry. | ||
| 51411 | JR NC,ProcessObjectAttribute_LookObjectRun_0 | |||
| 51413 | LD A,255 | Use 255 when the sum overflowed. | ||
| ProcessObjectAttribute_LookObjectRun_0 | 51415 | LD B,A | Call FetchObjectDataPointer to look up that object. | |
| 51416 | POP AF | |||
| 51417 | LD C,A | |||
| 51418 | CALL FetchObjectDataPointer | |||
| 51421 | LD A,C | Take the count, then call GetObjectAttributeValue to get object attribute value. | ||
| 51422 | CALL GetObjectAttributeValue | |||
| 51425 | SUB (IX+3) | Subtract the object's third parameter, negate A and subtract B. | ||
| 51428 | NEG | |||
| 51430 | SUB B | |||
| 51431 | POP BC | Restore BC from the stack. | ||
| 51432 | JR C,ProcessObjectAttribute_SignalStepFailed | Go to ProcessObjectAttribute_SignalStepFailed if that subtraction borrows. | ||
| 51434 | OR %00000001 | Reset the zero flag. | ||
| 51436 | RET | Return. | ||
| ProcessObjectAttribute_SignalStepFailed | 51437 | XOR A | Clear A. | |
| 51438 | RET | Return. | ||
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