The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 03, 1998
Filed:
Jul. 26, 1996
Ramesh Chandra Agarwal, Yorktown Heights, NY (US);
Fred G Gustavson, Briarcliff Manor, NY (US);
Mark A Johnson, Austin, TX (US);
Brett Olsson, Round Rock, TX (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
In a data processing unit having a plurality of general purpose registers, an instruction is loaded. Such an instruction includes an operation, and at least one operand field, where the operand field specifies one of a plurality of base registers and a displacement value. To calculate a general purpose register address specified by such an operand field, the displacement value is added to a base value stored in a base register that is specified by a portion of the operand field. Finally, the data processing unit addresses a selected one of the general purpose registers, utilizing the calculated general purpose register address, for execution of the specified operation. Thus, the data processing unit is capable of addressing a larger number of general purpose registers than may be directly addressed utilizing a value represented by a limited number of bits within the operand field.