Routines
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39887: Add A To HL
Used by the routines at ChooseItemSites, CompletePlanet, UpdateControlIcon, ChangeControlMethod, FireShot, SpawnEnemy, ExplodePlayerShip, ScoreDestroyedObject, ChooseTarget, UpdateObject, UpdateType1C, UpdateCrystalStack, UpdateType15, StartCrystalObject, PlayNote, UpdateBeams, ClipSpriteVertically, DrawSprites, BuildStackGraphic, BuildCarriedItemGraphic, CheckItemPickup, FindCellBit, AddShipPart, RunFrame, DrawSideFlames, BeginLife, LoadMapObjects, AddMapObjects, ResetLife and ResetPlayerState.
Adds an unsigned number to HL.
Input
A The number
HL The address
Output
HL The new address
AddAToHL 39887 ADD A,L Add A to L.
39888 LD L,A Copy it to L.
39889 LD A,H Fetch H.
39890 ADC A,0 Add 0 with carry.
39892 LD H,A Copy it to H.
39893 RET Return.
View the equivalent code in;
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