| 摘要 |
PROBLEM TO BE SOLVED: To reduce the number of times of reloading of a memory by storing only target address data and code data corresponding to plural pieces of data to be read out. SOLUTION: A CPU 22 calculates the position of predictive image to be extracted from a field memory 26 and finds the difference between the read-out predictive image and current data. A memory 23 inputs a write address ADDw and write data DATAw from the CPU 22. Concerning the memory 23, all the addresses are cleared and '0' is stored in the beginning. In the case of '1', data are written from the CPU 22 into the address '0' of memory 23. In the case of '2', data are written from the CPU 22 only into the addresses '0' and '8' of memory 23. In the case of '3', data are written from the CPU 22 only into the addresses '0', '4', '8' and '12' of memory 23. Thus, only the required target address and code are stored. |
