| 摘要 |
PURPOSE: To realize relative addressing being a mechanism efficient for displaying the copy of an object by using an index register. CONSTITUTION: A coordinate staging part 15 contains an adder 31, a loading control state machine 33, a multiplexer 35, an XY coordinate register 37, a clip register 39, a raster offset register 41, index logic 43, test window control logic 45, a comparison logic/result storage device 47, a comparison control state machine 49 and state generation logic 51. The loading control state machine 33 for controlling the operation of the index register contained in index logic 43 is realized. Thus, data can be received at speed as fast as possible, total waiting time can be shortened and throughput can be reduced. |
