Clip Window Sprites Register
From SpecNext Wiki
| Next Register Number | $19 |
|---|---|
| Readable | Yes |
| Writable | Yes |
| Short Description | Sets and reads clip-window for Sprites |
- read/write: X1 position
- read/write: X2 position
- read/write: Y1 position
- read/write: Y2 position
The values are 0,255,0,191 after a Reset.
Clip window on Sprites works by default only when the "draw over border" is disabled. With "over border" enabled, the clip window must be enabled extra by bit 5 in NextReg:$15, and X-axis coordinates of clip-window are then doubled, see the NextReg:$15 for details and example.
The current read/write index (which coordinate is next) can be read or reset by NextReg:$1C.