System and method for transparent handling of extended register states
US6456891B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 27, 1999 |
| Grant date | Sep 24, 2002 |
| Priority date | — |
| Expiry date | Oct 27, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F15/7832
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system and method for transparent handling of extended register states. A set of additional registers, or an extended register file, is added to the base architecture of a microprocessor. The extended register file includes two dedicated registers and a plurality of general-use registers. The extended register file is mapped to a region in main memory. One dedicated register of the extended register file stores the physical base address of the memory region. Another dedicated register of the extended register file is used to store bits to indicate the status of the extended register file. A set of extended instructions is implemented for transferring data to and from the extended register file.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.