CONTROL MEANS IN A DIGITAL COMPUTER

摘要

A directory unit includes means for storing address and control data relating to a plurality of cache transactions during the interval between the initiation of the individual ones of the transactions and the completion thereof. The directory includes the capability of comparing the pertinent data relative to subsequent proposed transaction with the corresponding data stored in the directory to determine if a procedural conflict exists, and, in the event of a conflict to issue control signals to resolve the conflict. Additionally, the address and control data stored in the directory is accessed to control the storage of a completed CPU operation into the appropriate location in the cache memory.