Performing memory accesses while omitting unnecessary address translations
US8725984B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 6, 2012 |
| Grant date | May 13, 2014 |
| Priority date | — |
| Expiry date | Sep 6, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/655
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In computing environments that use virtual addresses (or other indirectly usable addresses) to access memory, the virtual addresses are translated to absolute addresses (or other directly usable addresses) prior to accessing memory. To facilitate memory access, however, address translation is omitted in certain circumstances, including when the data to be accessed is within the same unit of memory as the instruction accessing the data. In this case, the absolute address of the data is derived from the absolute address of the instruction, thus avoiding address translation for the data. Further, in some circumstances, access checking for the data is also omitted.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.