Importance

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Abstract

An address translation apparatus includes: a first address translation unit to hold, first address information, validity information and correspondence information, the first address information indicating correspondence between a virtual address and a physical address, the validity information indicating a validity of the first address information, and the correspondence information indicating correspondence between first context information corresponding to the first address information and second context information in an access request; an information holding unit to hold context information in the first address information; a comparison unit to compare the first context information with the second context information and update the correspondence information based on a comparison result; and a control unit to search a new first entry having the first address information including the same virtual address as in the access request based on the validity information and the correspondence information and output a physical address in a searched first entry.

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First Claim