Microprocessor with novel instruction for signaling event occurrence and for providing event handling information in response thereto
US5625788A · kind A · utility
43Cited by
6References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 1, 1994 |
| Grant date | Apr 29, 1997 |
| Priority date | — |
| Expiry date | Mar 1, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F9/3863
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An out-of-order microprocessor signals event occurrence and provides event handling information utilizing a novel instruction issued to an execution unit upon detection of the condition giving rise to the event. Event information includes the type of event and characteristic information and data for use by a coded routine which handles the event. A reorder buffer stores this information to facilitate event handling actions and state updates. A retirement control circuit of the microprocessor includes a posting mechanism for use by the event handling routine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.