Method and apparatus for execution of threads on processing slices using a history buffer for recording architected register data
US10289415B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 14, 2015 |
| Grant date | May 14, 2019 |
| Priority date | — |
| Expiry date | Sep 19, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/452
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Method and system for restoring results to a register file of a processing unit is provided. An instruction is dispatched in a processing slice of the processing unit, targeting a register file, wherein the processing unit includes two or more processing slices, each processing slice including a corresponding history buffer and at least a portion of a register file. The processing unit evicts previous result data from the register file entry to a history buffer corresponding to the processing slice, by writing new result data into the register file entry, in response to the instruction. The processing unit detects a trigger condition relating to a rollback of the processing unit to a previous state, and restores the previous result data from the history buffer to the register file entry, in response to the trigger.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.