| 摘要 |
PURPOSE: To provide a picture processor and circuits capable of processing different plotting setting contents specified by various plotting commands by the use of the same plotting circuit based upon a more flexible and optional picture plotting function without expanding circuit size. CONSTITUTION: A RAM access circuit 100 defines various plotting commands in a command RAM 210. A plotting circuit 101 executes various read plotting commands. In this case, a common procedure for all the plotting commands is adopted and a foreground picture is developed in a frame buffer 211. In the case of processing a 2nd plotting command, a lacking part in specified contents is automatically generated by a coordinate generating circuit 102. In the case of executing a 3rd plotting command, the inside of a rectangular polygon is painted out with a specified color and plotted in the frame buffer 211. |
