Apparatus and method for controlling memory overrun
US8745337B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 19, 2008 |
| Grant date | Jun 3, 2014 |
| Priority date | — |
| Expiry date | Mar 5, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/261
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A memory address filter is configurable to emulate memory overrun performance of a legacy memory using an electronic memory of equal or greater capacity. The address filter includes a comparator configured to determine whether a target address is greater than a maximum legacy-address. Memory emulation at target address values greater than the maximum legacy-address value includes one or more of inhibiting the memory transaction; accomplishing the requested memory transaction at the maximum legacy-address value; and accomplishing the requested memory transaction at an address equivalent to the target address wrapped according to the maximum legacy-address value. In some embodiments, the address filter accepts one or more configuration parameters, such as memory depth, wrap-around, and overwrite enable.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.