Difference between revisions of "Sprite and Layers System Register"
From SpecNext official Wiki
| Line 11: | Line 11: | ||
! Bit !! Function | ! Bit !! Function | ||
|- | |- | ||
| − | | 7-2 || | + | | 7 || Enable [[Enhanced ULA|Lores Layer]] |
| + | |- | ||
| + | | 6-5 || Reserved | ||
| + | |- | ||
| + | | 3-4 || If %00, ULA is drawn under Layer 2 and Sprites; if %01, it is drawn between them, if %10 it is drawn over both | ||
| + | |- | ||
| + | | 2 || If 1, [[Layer 2]] is drawn over [[Sprites]], else sprites drawn over layer 2 | ||
|- | |- | ||
| 1 || Enable sprites over border | | 1 || Enable sprites over border | ||
Revision as of 00:00, 30 August 2017
| Number | $15 |
|---|---|
| Readable | Yes |
| Writable | Yes |
| Short Description | Enables/disables sprites and chooses priority of sprites and layer 2. |
Bitmapped as follows:
| Bit | Function |
|---|---|
| 7 | Enable Lores Layer |
| 6-5 | Reserved |
| 3-4 | If %00, ULA is drawn under Layer 2 and Sprites; if %01, it is drawn between them, if %10 it is drawn over both |
| 2 | If 1, Layer 2 is drawn over Sprites, else sprites drawn over layer 2 |
| 1 | Enable sprites over border |
| 0 | Enable sprite visibility |