3761883 is referenced by 43 patents and cites 8 patents.

A mechanism is described which retains a copy of a selected portion of the storage protect keys at each local storage buffer in a multiprocessing system. The mechanism reduces the amount of hardware required to retain the keys at the local buffer but allows for immediate modification of a key upon execution of a set storage key instruction.

Title
Storage protect key array for a multiprocessing system
Application Number
05/219,361
Publication Number
3761883
Application Date
January 20, 1972
Publication Date
September 25, 1973
Inventor
Hallett Robert J
Barner Jr Robert P
Alvarez Joseph A
Assignee
International Business Machines Corporation
IPC
G08b 29/00
G11c 07/00
G06F 12/08
G06F 12/14
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