Patent · US Active

Out-of-order processor that avoids deadlock in processing queues by designating a most favored instruction

US9798549B1 · kind B1 · utility

2Cited by

7References

13Claims

0Family size

Assignee

International Business Machines Corporation · US

Inventors

Maarten J. Boersma · Holzgerlingen, DE
Robert A. Cordes · Austin, US
David A. Hrusecky · Johnson City, US
Jennifer L. Molnar · Cedar Park, US
Brian W. Thompto · Austin, US
Albert J. Van Norstrand, Jr. · Round Rock, US
Kenneth L. Ward · Austin, US

Key dates

Filing date	Oct 31, 2016
Grant date	Oct 24, 2017
Priority date	—
Expiry date	Oct 31, 2036

Classification

Technology area (CPC G)Physics
CPC primaryG06F2212/452
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

An instruction sequencing unit in an out-of-order (OOO) processor includes a Most Favored Instruction (MFI) mechanism that designates an instruction as an MFI. The processing queues in the processor identify when they contain the MFI, and assures processing the MFI. The MFI remains the MFI until it is completed or is flushed, and which time the MFI mechanism selects the next MFI.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.