CACHE LINE REPLACE APPARATUS AND METHOD

摘要

Cache line replace device is operated as follows; (a) It saves write-back-data in a write-back-buffer, and simultaneously saves the data of memory bus in read-buffer during the saving of write-back-data all(51). (b) If the store of write-back-data is finished(52), CPU/cache bus reads the data to be saved in read-buffer(53), and after reading all, and reads the data of memory bus(54). (c) The data of memory bus are all transferred to CPU/cache bus, CPU reads from CPU/cache bus, and write-backs the data to be saved in write-back-buffer in main memory.