Tilemap Offset X LSB Register
From SpecNext official Wiki
| Number | $30 |
|---|---|
| Readable | Yes |
| Writable | Yes |
| Short Description | Sets the pixel offset (eight low bits) used for drawing Tilemap graphics on the screen. |
Tilemap X-offset, low 8 bits of it (0 after a reset)
Meaningful Range is 0-319 in 40 char mode, 0-639 in 80 char mode.
The two top bits of the offset value are stored in Tilemap Offset X MSB Register ($2F).