Tilemap X Scroll MSB Register

Number	TBRegisterNumber::$2F
Readable	TBRegisterReadable::Yes
Writable	TBRegisterWritable::Yes
Short Description	ShortDesc::Sets the pixel offset (two high bits) used for drawing Tilemap graphics on the screen.

Bits 7-2 Reserved, must be 0

Bits 1-0 Tilemap X-offset, top two bits of it (0 after a reset)

Meaningful Range is 0-319 in 40 char mode, 0-639 in 80 char mode.

The low eight bits of the offset value are stored in {{#ask: TBRegisterNumber::$30 }} ($30).