logo

For the Inventor, By the Inventor

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.:

US 5790844 B1

PDFFull Text
Date of Patent:
Aug. 04, 1998

Filed:

Mar. 31, 1997

Millicode load and test access instruction that blocks interrupts in

Applicant:
Inventors:

Charles Franklin Webb, Poughkeepsie, NY (US);

Mark Steven Farrell, Pleasant Valley, NY (US);

Mark Anthony Check, Hopewell Junction, NY (US);

John Stephen Liptay, Rhinebeck, NY (US);

Assignee:

International Business Machines Corporation, Armonk, NY (US);

Attorneys:

Lane, Aitken & McCann

Augspurger; Lynn L.

Primary Examiner:

Parshotam S Lall

Assistant Examiner:

Viet Vu

Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
395568 ; 395591 ; 395595 ;
Abstract

A special inillicode instruction 'Load With Access Test' explicitly detects access exceptions for storage operands while retaining control in the current millicode routine to insure exceptions are handled correctly and with the right priority. The millicode Load With Access Test instruction operates similarly to the ESA/390 Load instruction except that access exception code is set, interrupts are blocked and the serialization is forced to purge the instruction pipeline and reset the pipeline control without redirection of the instruction stream.

Find Patent Forward Citations

Webb, Charles. (1998). Millicode load and test access instruction that blocks interrupts in (U.S. Patent No. 5790844). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5790844

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Loading…