Little offset in multicycle event maintaining cycle accurate tracing of stop events
US6948155B2 · kind B2 · utility
8Cited by
7References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 22, 2002 |
| Grant date | Sep 20, 2005 |
| Priority date | — |
| Expiry date | Dec 9, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/3656
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method of tracing activity of a data processor includes collecting and transmitting trace data. An epause marker is embedded in the trace stream upon detection of an emulation halt. This epause marker includes a little offset indicating a number of latency instructions within trace collection hardware since a program counter exception. This permits the utilization emulation device to annulling trace data corresponding to the latency instructions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.