sprite.s

Summary

sprite.s
Functions
spr_show	Show sprite.
spr_hide	Hide sprite.
spr_x	Update sprite X coordinate.
spr_y	Update sprite Y coordinate.
spr_pattern	Set sprite pattern address in VRAM.
spr_pal	Set sprite palette index.
spr_pri	Set sprite priority.
spr_ctrl	Set sprite control flag.
spr_update_satb	Copy the local sprite attribute table to VRAM.

Functions

spr_show

Show sprite.

Parameters

Y	sprite index

spr_hide

Hide sprite.

Parameters

Y	sprite index

spr_x

Update sprite X coordinate.

Parameters

Y	sprite index
A	X coordinate

spr_y

Update sprite Y coordinate.

Parameters

Y	sprite index
A	Y coordinate

spr_pattern

Set sprite pattern address in VRAM.

Parameters

Y	sprite index
X	MSB of the sprite pattern address in VRAM
A	LSB of the sprite pattern address in VRAM

spr_pal

Set sprite palette index.

Parameters

Y	sprite index
A	palette index

spr_pri

Set sprite priority.

1 foreground
0 background

Parameters

Y	sprite index
A	sprite priority

spr_ctrl

Set sprite control flag.

Parameters

Y	sprite index
_al	Mask of the bits to change (eg VDC_SPRITE_VERTICAL_FLIP_MASK, VDC_SPRITE_HORIZONTAL_FLIP_MASK, VDC_SPRITE_WIDTH_MASK, VDC_SPRITE_HEIGHT_MASK, VDC_SPRITE_PRIORITY_MASK, VDC_SPRITE_PALETTE_MASK)
A	New bits values.

spr_update_satb

Copy the local sprite attribute table to VRAM.