| 摘要 |
PURPOSE:To constitute one block of a cache memory while containing the longitudinal picture elements of an image memory. CONSTITUTION:This system is equipped with a cache memory 10 to copy one part of the picture elements in an image memory 1 with the plural picture elements longitudinally and laterally continued in the image memory 1 as the data of one block and a tag table 9 to store data as the index of a block 2 stored in the cache memory 10 while using the address of the image memory 1. The cache memory 10 is composed of data blocks corresponding to the respective tags of the tag table 9 and defines a byte select address in the block of the cache memory 10 by combining the value of one digit or plural digits containing the least significant digits of digits 7 and 8 expressing the horizontal address of the image memory 1 outputted from a processor with the value of one or plural digits containing the least significant digits of digits 4, 5 and 6 expressing the longitudinal position of the image memory 1. |
