Apparatus and method for identification of a new secondary code start point following a return from a secondary code execution
US7225365B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 5, 2003 |
| Grant date | May 29, 2007 |
| Priority date | — |
| Expiry date | Apr 19, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/3672
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
When a NEW SECONDARY CODE EXECUTION START POINT signal is generated in a target processor during a test procedure after the return from an interrupt service routine (i.e., an original secondary code sequence), a sync marker is generated in a program counter trace stream. The sync marker includes a plurality of packets, the packets identifying that the sync marker is has been generated as a result of the NEW SECONDARY CODE EXECUTION START POINT signal. The new secondary program code start point sync marker identifies the absolute program counter address at the time of the generation of the NEW SECONDARY CODE EXECUTION START POINT signal and relates the NEW SECONDARY CODE EXECUTION START POINT signal sync marker to a timing trace stream.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.