G - Physics – 06 – F
Patent
G - Physics
06
F
G06F 12/10 (2006.01)
Patent
CA 2078635
66446-551 ABSTRACT A data processing system has the function of translating a logical address made up of a partial space number, a logical space number and an address within a page to a physical address made up of a physical page number and the address within a page and accesses a memory section under the coexistence of various different page sizes. The data processing system has a table holding section for holding sets of copies of different address translation tables stored in the memory section on a partial space basis. The sets of copies are each assigned to a particular page size. The data processing system also has a load control section for loading one of the address translation tables in the table holding section in response to an address translation table load command. The data processing system also has a directory supervising section for supervising partial spaces each corresponding to one of the address translation tables held in the table holding section. Finally, the data processing system also has a first loading section for executing, by defining the partial spaces assigned to the same page size as a single supervisory unit in the directory supervising section, load control over the address translation tables independently. The invention allows the dynamic translation of addresses having different page sizes thereby enhancing efficient use of memory and improving the operating system overhead.
Fujiwara Yoshifumi
Kato Hiroshi
Corporation Nec
Smart & Biggar
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