Glossary: Difference between revisions

Revision as of 10:40, 14 July 2022

Background: A grid-based layer containing a tileset, one or more tilemaps, a scroll offset and other attributes.
CGRAM: 256 15-bit words of memory located in the PPU that holds the palette data.
Character: Another word for tile.
Nametable: Another word for tilemap.
Object: Nintendo's term for Sprite.
OAM
Object Attribute Memory: 544 bytes of memory located in the PPU that holds the sprite table.
Palette: A color lookup table.
Sliver: An 8x1 segment of a tile.
Sprite: A 16-colour (4bpp) tile that can be drawn anywhere on the screen.
Tile: A small square graphic.; SNES tiles are 8x8 pixels in size and are stored in a variety of formats in VRAM. Adjacent tiles can be combined to create larger tiles for backgrounds and sprites.
Tilemap: A grid (in VRAM) that describe which tiles and palettes to draw for a background layer.
Mode 7 Tilemap: A 128x128 grid of 8-bit tile indexes for the Mode-7 background (in VRAM).
Tilemap Entry: A 16 bit word containing the tile index, flip, palette index and priority.
PPU
Picture Processing Unit: Generates video output from VRAM, CGRAM and OAM memory.
VRAM: Video-RAM. The SNES has 2x 32KiB Video-RAM chips (64KiB total VRAM).; The VRAM holds tile data, tilemap data and offset-per-tile data

@@ Line 24: / Line 24: @@
 : SNES tiles are 8x8 pixels in size and are stored in a variety of formats in VRAM.  Adjacent tiles can be combined to create larger tiles for backgrounds and sprites.
 ; [[Tilemaps|Tilemap]]
-: A 32x32 grid (in VRAM) of tilemap entries that describe which tiles and palettes to draw for a background layer.
+: A grid (in VRAM) that describe which tiles and palettes to draw for a background layer.
 ; [[Tilemaps#Mode_7|Mode 7 Tilemap]]
 : A 128x128 grid of 8-bit tile indexes for the Mode-7 background (in VRAM).