Branching to alternate code based on runahead determination
US9582280B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 18, 2013 |
| Grant date | Feb 28, 2017 |
| Priority date | — |
| Expiry date | Dec 31, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F9/3867
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The description covers a system and method for operating a micro-processing system having a runahead mode of operation. In one implementation, the method includes providing, for a first portion of code, a runahead correlate. When the first portion of code is encountered by the micro-processing system, a determination is made as to whether the system is operating in the runahead mode. If so, the system branches to the runahead correlate, which is specifically configured to identify and resolve latency events likely to occur when the first portion of code is encountered outside of runahead. Branching out of the first portion of code may also be performed based on a determination that a register is poisoned.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.