| 摘要 |
PURPOSE: To prevent the generation of a flicker at the time of moving graphic data by switching and displaying picture data stored in a first memory and the picture data after movement prepared in a second memory. CONSTITUTION: Two frame butter memories are prepared and the picture data are stored in one frame butter memory 34 first and displayed at a CRT. When an instruction for moving a displayed graphic is inputted by a cursor or the like, a picture processor prepares the picture data after the movement and the picture data after the movement are inputted to the other frame butter memory 36. After preparation is ended, by switching the frame butter memory to be read for display, the displayed graphic is moved. Thus, since the graphic is instantaneously moved, a user does not feel an offensive flicker. |
