Unused
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BECA: Unused: Apply Sprite Attributes
Unused routine to apply colour attributes for a sprite. Handles both the overlay buffer attributes and the screen attributes.
Input
D Bit 0: 01 = two columns wide, 00 = one column wide
E Sprite X position
HL Screen buffer address
Unused_Apply_Attributes BECA LD C,$58 Set C to 58 (overlay attribute buffer base high byte).
BECC LD A,(IX+$00) Load the sprite X position from *IX+00.
BECF CP $FF Jump to Unused_Apply_Screen_Attributes if the X position is FF (sprite offscreen).
BED1 JR Z,$BED8
BED3 PUSH HL Stash the screen address on the stack.
BED4 CALL $BEE0 Call Unused_Write_Attribute_Cells to apply the overlay buffer attributes.
BED7 POP HL Restore the screen address from the stack.
Unused_Apply_Screen_Attributes BED8 LD C,$F8 Set C to F8 (screen attribute buffer base high byte).
BEDA LD E,$02 Set E to 02 (attribute INK colour).
BEDC CALL $BEE0 Call Unused_Write_Attribute_Cells to apply the screen attributes.
BEDF RET Return.
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