diff options
| author | lonkaars <loek@pipeframe.xyz> | 2023-02-20 17:13:06 +0100 |
|---|---|---|
| committer | lonkaars <loek@pipeframe.xyz> | 2023-02-20 17:13:06 +0100 |
| commit | 27b39499095ccb7e7e73a78776946b60fc96fb05 (patch) | |
| tree | 039075a83d876eb77d14709bca701b01520d2723 /basys3/basys3.srcs/ppu_consts.vhd | |
| parent | 29108f38c5f885412b0a75ae46b85720946cfdb5 (diff) | |
PPU background sprite component done (but unverified)
Diffstat (limited to 'basys3/basys3.srcs/ppu_consts.vhd')
| -rw-r--r-- | basys3/basys3.srcs/ppu_consts.vhd | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/basys3/basys3.srcs/ppu_consts.vhd b/basys3/basys3.srcs/ppu_consts.vhd index f4d428e..89b7a7a 100644 --- a/basys3/basys3.srcs/ppu_consts.vhd +++ b/basys3/basys3.srcs/ppu_consts.vhd @@ -21,12 +21,14 @@ package ppu_consts is constant PPU_POS_V_WIDTH : natural := 8; -- amount of bits for vertical screen offset constant PPU_SPRITE_WIDTH : natural := 16; -- sprite width (pixels) constant PPU_SPRITE_HEIGHT : natural := 16; -- sprite height (pixels) + constant PPU_SPRITE_POS_H_WIDTH: natural := 4; -- bits needed to identify horizontal pixel within sprite + constant PPU_SPRITE_POS_V_WIDTH: natural := 4; -- bits needed to identify vertical pixel within sprite constant PPU_SCREEN_WIDTH : natural := 320; -- absolute screen width (pixels) constant PPU_SCREEN_HEIGHT : natural := 240; -- absolute screen height (pixels) constant PPU_BG_CANVAS_TILES_H : natural := 40; -- amount of tiles (horizontally) on background canvas constant PPU_BG_CANVAS_TILES_V : natural := 30; -- amount of tiles (vertically) on background canvas constant PPU_TILE_INDEX_WIDTH : natural := 10; -- amount of bits needed to index a tile from TMM memory constant PPU_PIXELS_PER_TILE_WORD : natural := 5; -- amount of pixels defined in one word in TMM memory - constant PPU_TILE_SIZE : natural := 48; + constant PPU_SPRITE_PIXELS_PER_WORD : natural := 52; -- amount of words needed for a single sprite end package ppu_consts; |