| 摘要 |
<p>PROBLEM TO BE SOLVED: To speedily display picture data corresponding to various display conditions by setting reading start and end positions in order to read picture data for picture display as to each of the plural picture memories. SOLUTION: A data control section 101 is controlled by a CPU and successively expands the picture data to be displayed on a display device 23 which is read from a RAM, to VRAMs 1031, 1032,...103m while controlling a VRAM switching section 102. Each of the respective reading start position information RS1 to RSm shows the leading address of the storage region in a picture data VRAM to be displayed on the device 23 among the picture data in the corresponding VRAMs. Moreover, each of reading end position information RE1 to REm shows the trailing address of the storage region. The section 101 lets the section 102 successively set the VRAMs 1031 to 103m in a condition able to write-in in order, one by one.</p> |
