| 摘要 |
PURPOSE:To prevent generation of the overhead due to the software by executing a segmentation and synthesis processing of plural partial pictures in a memory so as to attain one start processing thereby avoiding a bus neck. CONSTITUTION:A central processing unit 1000 forms a two-dimension block transfer control table T, sets a head address of a transfer control table T, the number of words per one line of a transfer control table and the number of partial pictures to be converted to a table address counter 2001 in a main memory controller 2000, a table word number register 2002 and a transfer block number counter 2003 so as to start the titled device. This device sets a data for the first one line of the transfer control table T to counters and registers in the device and segments/synthesizes one partial picture based on the said data. The data for one line's share is fetched sequentially in the controller 2000, the segmentation/synthesis is attained and when the segmentation and synthesis is finished as to all partial pictures, an end interruption is applied to the central processing unit 1000. |
