Rolling means rolling method, a rolling program, and an integrated circuit

The display unit (2) scrolling the display content scrolling device (1) comprising: the movement start position detected by the detection unit (11), a storage unit should be determined (15) to a secondary storage unit load (16) load range of the display data loading range determination unit (12); loading the display data by the range determination section (12) determines the range of the load from the primary storage unit (15) loaded into the secondary storage unit (16) of the loading unit (13 ); display data of the display data loading range and range stored in the secondary storage unit (16) is displayed on the display unit (2) a display control unit (14).