Routines
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9BCF: 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 9BCF ADD A,L Add A to L.
9BD0 LD L,A Copy it to L.
9BD1 LD A,H Fetch H.
9BD2 ADC A,$00 Add 00 with carry.
9BD4 LD H,A Copy it to H.
9BD5 RET Return.
View the equivalent code in;
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