| 摘要 |
<p>PURPOSE:To prevent the generation of an overlapping display by executing a scroll processing of one physical line unit, even when one logical line corresponds to plural physical lines. CONSTITUTION:A scroll executing means 2 operates so as to execute a scroll so that physical line data information of logical line data stored in the first and the second temporary buffers 3, 4 is not overlapped with physical line data positioned in a start line 6 and an end line 7 after the scroll processing has been executed, based on a result of decision of a line kind deciding means 8. Accordingly, one logical line data is formed by the physical line data stored in the first temporary buffer 3 and the physical line data positioned in the start line 6, and also, one logical line data is formed by the physical line data stored in the second temporary buffer 4 and the physical line data positioned in the end line 7, and the scroll is executed by what is called a physical line unit. In such a way, the generation of an overlapping display is prevented.</p> |
