Atic Atac: Routine at 9E89

9E89: Fetch Sprite

Looks up the address of the graphic for a sprite in the table at SpritesTable. The table has a two byte entry for each sprite ID, starting at ID 01.

Input
A	The sprite ID

Output
DE	The sprite address

FetchSprite

9E89

DEC A

Decrease the sprite ID by one, as the table starts at ID 01.

9E8A

LD L,A

Fetch the sprite ID.

9E8B

LD H,$00

9E8D

ADD HL,HL

Multiply by 02 as each entry in the table is a two byte address.

9E8E

LD BC,$A4BE

HL=SpritesTable + the offset of the entry.

9E91

ADD HL,BC

9E92

LD E,(HL)

Fetch the sprite address.

9E93

INC HL

9E94

LD D,(HL)

9E95

RET

Return.

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