Register - Active Features
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The active features register controls which parts of the PPU program are enabled.
Active Features
Bit | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
---|---|---|---|---|---|---|---|---|
$02F8 | D | GBG | SD0 | SD1 | BG0 | BG1 | BG2 | BG3 |
$02F9 | BCC | SCC | BTC | STC | BTS | STS | FR | SC |
$02FA | SX0 | SY0 | SX1 | SY1 | SX2 | SY2 | SX3 | SY3 |
Key
- D - Debug Output
- 0 = Disable Debug Display
- 1 = Enable Debug Display (FPS, Timings, Memory, etc.)
- GBG - Global Background Color
- 0 = Disable Global Background, always uses black.
- 1 = Enable Global Background
- SD0 - Normal Sprites (when Sprite Depth flag is 0)
- 0 = Disable Normal Sprites
- 1 = Enable Normal Sprites
- SD1 - Background Sprites (when Sprite Depth flag is 1)
- 0 = Disable Background Sprites
- 1 = Enable Background Sprites
- BG0 - Main Background
- 0 = Disable Background, not rendered.
- 1 = Enable Background
- BG1 - Background 2
- 0 = Disable Background, not rendered.
- 1 = Enable Background
- BG2 - Background 3
- 0 = Disable Background, not rendered.
- 1 = Enable Background
- BG3 - Background 4
- 0 = Disable Background, not rendered.
- 1 = Enable Background
- BCC - Background Color Cycling
- 0 = Disable Background Color Cycling, ignores background parts of color cycle registers.
- 1 = Enable Background Color Cycling
- SCC - Sprite Color Cycling
- 0 = Disable Sprite Color Cycling, ignores sprite parts of color cycle registers.
- 1 = Enable Sprite Color Cycling
- BTC - Background Tileset Cycling
- 0 = Disable Background Tileset Cycling, ignores background cycle range and speed registers.
- 1 = Enable Background Tileset Cycling
- STC - Sprite Tileset Cycling
- 0 = Disable Sprite Tileset Cycling, ignores sprite cycle range and speed registers.
- 1 = Enable Sprite Tileset Cycling
- BTS - Background Tileset Select
- 0 = Disable Background Tileset Select always uses 0 for the main background.
- 1 = Enable Background Tileset Select.
- STS - Sprite Tileset Select
- 0 = Disable Sprite Tileset Select, ignores tileset select registers, always uses set 0.
- 1 = Enable Sprite Tileset Select.
- FR - Fixed Regions (Main Background)
- 0 = Disable Fixed Regions for the Main Background, fixed region name table is ignored.
- 1 = Enable Fixed Regions for the Main Background
- SC - Special Commands
- 0 = Disable Special Commands
- 1 = Enable Special Commands
- SX0 - Scrolling X-Axis
- 0 = Disable Horizontal Scrolling on the Main Background, always scroll position 0.
- 1 = Enable Scrolling on the Main Background X-Axis
- SY0 - Scrolling Y-Axis
- 0 = Disable Vertical Scrolling on the Main Background, always scroll position 0.
- 1 = Enable Scrolling on the Main Background Y-Axis
- SX1 - Scrolling X-Axis
- 0 = Disable Horizontal Scrolling on Extra Background 1, always scroll position 0.
- 1 = Enable Scrolling on Extra Background 1 X-Axis
- SY1 - Scrolling Y-Axis
- 0 = Disable Vertical Scrolling on Extra Background 1, always scroll position 0.
- 1 = Enable Scrolling on Extra Background 1 Y-Axis
- SX2 - Scrolling X-Axis
- 0 = Disable Horizontal Scrolling on Extra Background 2, always scroll position 0.
- 1 = Enable Scrolling on Extra Background 2 X-Axis
- SY2 - Scrolling Y-Axis
- 0 = Disable Vertical Scrolling on Extra Background 2, always scroll position 0.
- 1 = Enable Scrolling on Extra Background 2 Y-Axis
- SX3 - Scrolling X-Axis
- 0 = Disable Horizontal Scrolling on Extra Background 3, always scroll position 0.
- 1 = Enable Scrolling on Extra Background 3 X-Axis
- SY3 - Scrolling Y-Axis
- 0 = Disable Vertical Scrolling on Extra Background 3, always scroll position 0.
- 1 = Enable Scrolling on Extra Background 3 Y-Axis
This register is a part of the Control Page.