Tracing program counter addresses using native program counter format and instruction count format
US7047451B2 · kind B2 · utility
10Cited by
3References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 22, 2002 |
| Grant date | May 16, 2006 |
| Priority date | — |
| Expiry date | Jul 1, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/3656
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method of tracing program counter activity in a data processor periodically transmits a program counter sync point including the current program counter address. Between sync points the program counter address is indicated by a program counter offset relative to the last program counter sync point. The program counter offset is sent as integral number of sections of a predetermined number of bits. Program counter sync points are transmitted often enough so that the program counter offset requires at most one less section than the program counter address.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.