Stack Pointer Management
US6598151B1 · kind B1 · utility
5Cited by
3References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 1, 1999 |
| Grant date | Jul 22, 2003 |
| Priority date | — |
| Expiry date | Oct 1, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F9/321
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A processor (100) is provided that is a programmable digital signal processor (DSP) with variable instruction length. A user stack region (910) is used to pass variables to a subroutine and to hold values representative of a first portion of a program counter (1000). A system stack region (911) is used to hold values representative of a remaining portion of the program counter (1001) and to hold additional context information. The user stack region and the system stack region are managed independently so that software from a prior generation processor can be translated to run on processor (100).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.