Processor and method for translating a nonphysical address into

Details Processor and method for translating a nonphysical address into Processor and method for translating a nonphysical address into

1996-06-25

1999-02-16

Chan, Eddie P.

Electrical computers and digital processing systems: memory

Address formation

Address mapping

711207, 711129, G06F 1210

Patent

active

058731237

ABSTRACT:
A processor and method for translating a nonphysical address into a physical address are disclosed. A determination is made if a first entry set which could contain a particular entry that associates a selected nonphysical address with a corresponding physical address assigned to a device in the data processing system is stored within a first memory of the data processing system. In response to a determination that the first entry set is not stored in the first memory, a determination is made if a second entry set which could contain the particular entry is stored within the first memory. In response to a determination that the second entry set is stored in the first memory, a search of the second entry set is initiated in order to locate the particular entry. In response to locating the particular entry, the selected nonphysical address is translated to the corresponding physical address utilizing the particular entry. In one embodiment, if the first entry set becomes available during the search of the second entry set, the first entry set is preferentially searched prior to completing the search of the second entry set.

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patent: 5542089 (1996-07-01), Lindsay et al.
patent: 5584005 (1996-12-01), Miyaoku et al.

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