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:
Jul. 20, 1999
Filed:
Jun. 24, 1993
Applicant:
Inventors:
Alan Ian Alpert, Hopewell Junction, NY (US);
Michael Gerard Mall, Morgan Hills, CA (US);
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
712244 ; 712246 ;
Abstract
A Test Operation-Code (TSTOP) instruction pre-verifies the validity of a target instruction op-code prior to execution of the target instruction. The pre-verification function, contained within CPU execution unit microcode, sets a return value in a program status word to indicate one of four conditions:
Quick Actions:
Alpert, Alan. (1999). Apparatus and method for pre-verifying a computer instruction set to (U.S. Patent No. 5925125). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5925125
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