G - Physics – 06 – F
Patent
G - Physics
06
F
354/241
G06F 12/02 (2006.01) G06F 9/46 (2006.01) G06F 12/10 (2006.01) G06F 12/14 (2006.01)
Patent
CA 1308202
PO98/-004 ACCESS REGISTER TRANSLATION MEANS FOR ADDRESS GENERATING MECHANISM FOR MULTIPLE VIRTUAL SPACES Abstract Of The Disclosure A method and apparatus is provided to translate the contents of access registers into information for use in performing addressing functions for multiple virtual address spaces. The access registers represent the full addressing capability of the system but do not directly contain the addressing information. The system has a plurality of general purpose registers, a plurality of access registers associated with the general registers, an access list having access list entries which is addressed by the contents of the access register, memory storage for holding address space number second table entries (ASTE), where the contents of the access list entry locate the ASTE and where the ASTE contains the addressing information needed to translate a virtual address when combined with the contents of a general purpose register. Access register translation (ART) consists of the process of determining addressing information by using the access list entry and the ASTE. The results of the ART process are stored in an ART lookaside buffer (ALB) which stores the results of ART while valid for later use.
584970
Baum Richard I.
Borden Terry L.
Butwell Justin R.
Clark Carl E.
Ganek Alan G.
Barrett B.p.
International Business Machines Corporation
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