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Routines |
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Updates an entity of the type 04. Every other frame it calls IncreaseEntityCounter.
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| UpdateDropEntity | 9C78 | LD A,($A2DD) | Fetch the low byte of the frame counter from FrameCounter. | |||||
| 9C7B | AND %00000001 | Keep bit 0. | ||||||
| 9C7D | CALL Z,IncreaseEntityCounter | Call IncreaseEntityCounter on every other frame. | ||||||
| 9C80 | SET 7,(IX+$11) | Set bit 7 of the heading of the entity. | ||||||
| 9C84 | BIT 7,(IX+$23) | Jump to UpdateEntity_Move to carry on updating the entity if bit 7 of field 23 of the entity is not set. | ||||||
| 9C88 | JP Z,UpdateEntity_Move | |||||||
| 9C8B | LD A,(IX+$1F) | Read field 1F of the entity. | ||||||
| 9C8E | INC A | Add one. | ||||||
| 9C8F | CP $02 | Compare it with 02. | ||||||
| 9C91 | RES 7,(IX+$23) | Reset bit 7 of field 23 of the entity. | ||||||
| 9C95 | JP C,UpdateEntity_Move | Jump to UpdateEntity_Move to carry on updating the entity if it was below 02. | ||||||
| 9C98 | SET 7,(IX+$23) | Set bit 7 of field 23 of the entity. | ||||||
| 9C9C | RES 7,(IX+$11) | Reset bit 7 of the heading of the entity. | ||||||
| 9CA0 | JP UpdateEntity_Move | Jump to UpdateEntity_Move to carry on updating the entity. | ||||||
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