Assembly Language SPRITE Module

SPRITE Module

This module contains routines to create and manipulate sprites.

A sprite is made up of individual 8x8 pixel spritles.

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gfx_sprite_set_attrs

Input	C: Attribute Count
	DE: Attribute List Address
	HL: Sprite Definition Address
Output	Flags: NZ if attribute count <> spritle count
Clobbers	A,BC,DE

Action: Sets the attributes of the individual spritles in a sprite.

• Attribute List is a list of one byte sprite attributes.
• Attribute Count is the number of attributes in the list.
• Sprite Definition is a sprite definition structure.

Example:

ATTR_LIST: BYTE O,O,SPR_HFLIP
ATTR_COUNT EQU $ - ATTR_
LD C,ATTR_COUNT
LD DE,ATTR_LIST
LD HL,SPRITE_DEF
LD IX,GFX_SPRITE_ATTRS
CALL EXEC_GFX_ROUTINE

Sets the horizontal flip attribute of the third spritle in sprite SPRITE_DEF.

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routine_name

| Input | | | | | | | | Output | | | | | | | | Clobbers | | |

Action: descriptive text

Examples:

code

Explanation