Patent · US Expired

Apparatus and method for fast unified interrupt recovery and branch recovery in processors supporting out-of-order execution

US6098167A · kind A · utility

26Cited by

24References

16Claims

0Family size

Assignee

International Business Machines Corporation · US

Inventors

Hoichi Cheong · Austin, US
Hung Q. Le · Austin, US
John Stephen Muhich · Austin, US
Steven Wayne White · Austin, US

Key dates

Filing date	Mar 31, 1997
Grant date	Aug 1, 2000
Priority date	—
Expiry date	Mar 31, 2017

Classification

Technology area (CPC G)Physics
CPC primaryG06F9/3863
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

In maintaining the state of a processor, a dispatched instruction is given an identification tag and an associated entry in an architectural register table. The identification tag of the dispatched instruction is written to the entry in the architectural register table, if the identification tag of the dispatched instruction is more recent than a prior instruction identification tag stored in the entry.

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