Tilemap X Scroll LSB Register

Number	TBRegisterNumber::$30
Readable	TBRegisterReadable::Yes
Writable	TBRegisterWritable::Yes
Short Description	ShortDesc::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 {{#ask: TBRegisterNumber::$2F }} ($2F).