Directing storage requests prior to address comparator initializ

Details Directing storage requests prior to address comparator initializ Directing storage requests prior to address comparator initializ

1984-11-13

1988-03-01

Williams, Jr., Archie E.

Boots, shoes, and leggings

G06F 1500, G06F 1200

Patent

active

047290919

ABSTRACT:
An apparatus directs storage requests from a processor through a storage controller to storage. The storage controller contains address comparators which are uninitialized, i.e., they contain no address identifiers. As a result, logic within the storage controller is used to direct these storage requests until the address comparators become initialized. The storage controller directs the first and all subsequent storage requests to a read only storage if the first storage request is for a load, or read, operation. Conversely, the storage controller directs the first and all subsequent storage requests to a random access memory if the first storage request contains a store, or write, operation. An initialization program contained in an I/O device is loaded into the random access memory at the time the first storage request containing a store operation is made. After the address comparators within the storage controller have been initialized, all storage requests are directed to the appropriate location in storage identified by an address accompanying each storage request.

REFERENCES:
patent: 4030073 (1977-06-01), Armstrong
patent: 4195341 (1980-03-01), Joyce et al.
patent: 4236207 (1980-11-01), Rado et al.
patent: 4475176 (1984-10-01), Ishii
patent: 4491914 (1985-01-01), Sujaku
patent: 4497021 (1985-01-01), Fukuda et al.
patent: 4590557 (1986-05-01), Lillie
patent: 4591982 (1986-05-01), Buonomo et al.
patent: 4628450 (1986-12-01), Sato et al.
Computer Design, Computeach Press, Inc., 1982, by Glen G. Langdon, Jr., pp. 86-87, 198-199, 202-203, 212-213, 214-215, 496-501, 554-557.
IBM TDB vol. 21, No. 10, Mar. 1979, pp. 4100-4101, "Read Only Storage/Random-Access Memory Mode Change" by R. J. Gallagher.

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