| 摘要 |
PURPOSE:To execute the display of a monitor screen at a high speed, to make the displaying time thereof short and to make the operation time of monitor display by a CPU short. CONSTITUTION:A bit map registration means 3d which registers bit map data extended by a vector graphic display means 3b in a bit map cashe 3h at the first time, a bit map display means 3c which extends the bit map data registered in the cashe 3h on a video RAM 6 from the second time and a monitor screen display means 3a which executes the display of the screen on a display device 4 are provided. |
