Buffer-storage control system

Details Buffer-storage control system Buffer-storage control system

G - Physics

06

F

354/230.87

G06F 12/02 (2006.01) G06F 12/08 (2006.01)

Patent

CA 1218753

BUFFER-STORAGE CONTROL SYSTEM ABSTRACT OF THE DISCLOSURE A buffer-storage control system used in a pipeline data processor comprising a memory system having a two-level hierarchical structure composed of a main storage and a buffer storage. The buffer storage has a tag portion and a data portion, each portion being composed of a plurality of ways. In the buffer-storage control system, the tag portion and the data portion can be independently accessed and the data portion is so constituted for every way that it is possible to select one of a plurality of address passes and to select an address for a read access and an address for a write access for every way, thereby simultaneously effecting a read operation and write operation in the same machine cycle and executing the read access again only when the read access and the write access are effected for the same way.

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