VDP Sprites

Sprites

Attribute Table

The Sprite attribute table address is defined via the vdp register 0x5.

Each sprites require 4 words.

0	Bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Def Unused Vertical Position
1	Bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Def Unused Horizontal size Vertical size Unused Link
2	Bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Def Priority Palette ID Vertical Reverse Horizontal Reverse Tile ID
3	Bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Def Unused Horizontal Position

Size

16 different sprite size are selectable

The relationship between the tile id and the placement follow a top-left to bottom-right order.

	V = 0	V = 1	V = 2	V = 3
H = 0	0	0 1	0 1 2	0 1 2 3
H = 1	0 1	0 2 1 3	0 3 1 4 2 5	0 4 1 5 2 6 3 7
H = 2	0 1 2	0 2 4 1 3 5	0 3 6 1 4 7 2 5 8	0 4 8 1 5 9 2 6 A 3 7 B
H = 3	0 1 2 3	0 2 4 6 1 3 5 7	0 3 6 9 1 4 7 A 2 5 8 B	0 4 8 C 1 5 9 D 2 6 A E 3 7 B F