U.S. patents available from 1976 to present.
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Method and device for address translation for compressed instructions

Patent 6779100 Issued on August 17, 2004. Estimated Expiration Date: Icon_subject December 17, 2019. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

Method and apparatus for compression, decompression, and execution of program code
Patent #: 6216213
Issued on: 04/10/2001
Inventor: Breternitz, Jr., et al.

Method and apparatus for compression, decompression, and execution of program code
Patent #: 6343354
Issued on: 01/29/2002
Inventor: Breternitz, Jr., et al.

Directory cache for indirectly addressed main memory Patent #: 6353871
Issued on: 03/05/2002
Inventor: Benveniste, et al.

Inventors

Assignee

Application

No. 09465900 filed on 12/17/1999

US Classes:

711/202, Address mapping (e.g., conversion, translation)711/125, Instruction data cache711/217, Generating a particular pattern/sequence of addresses711/220, Combining two or more values to create address711/214, Operand address generation712/230Generating next microinstruction address

Examiners

Primary: Tran, Denise

International Classes

G06F 1210
G06F 1300

Abstract

A computer system for storing corresponding instruction blocks in a compressed form in a main memory and in an uncompressed form in an instruction cache. The instruction cache line addresses for the uncompressed instruction blocks in the instruction cache have an algebraic correlation to the main memory line addresses for the compressed instruction blocks in the main memory. Preferably, the instruction cache line addresses are proportional to the corresponding main memory line addresses.

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