Access priority control system for main storage for computer

Details Access priority control system for main storage for computer Access priority control system for main storage for computer

G - Physics

06

F

354/237

G06F 13/18 (2006.01)

Patent

CA 1310429

ACCESS PRIORITY CONTROL SYSTEM FOR MAIN STORAGE FOR COMPUTER ABSTRACT OF THE DISCLOSURE An access priority control system for a main storage for a computer, for controlling a signal transmission to the main storage upon receiving a plurality of storage access requests from at least one processor related to the main storage. The system includes a first access request port unit for holding at least temporarily a segment address of the storage access requests from the processor; a first control unit responsive to the output of the first access request port unit for checking bus conflict conditions and prohibition conditions for a destination storage segment determined by the address of the storage access request; a second access request port unit responsive to the output of the first control unit for holding at least temporarily an intra-segment address of the storage access request; and a second control unit responsive to the output of the second access request port unit for checking logical storage busy conditions in the storage segments.

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