Emulating the memory functions of a first system on a second system
US5515525A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 28, 1993 |
| Grant date | May 7, 1996 |
| Priority date | — |
| Expiry date | Sep 28, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F12/109
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A memory translation mechanism and method executing in a second system to perform first system memory operations for first system executive and user tasks executing on the second system which includes a second system memory organized as a plurality of memory segments, wherein first memory segments are designated to correspond to system memory areas and second memory segments are designated to correspond to user memory areas, and wherein each memory segment corresponds to a combination of a type of first system task and a type of a first system memory area. An interpreter maps by reading an identification of the type of the task corresponding to the first system virtual address from the task type memory and the area type value from the first system virtual address and determining a memory segment corresponding to the type of the first system task and the type of first system area referenced by the first system virtual address. The interpreter maps the identified segment to a memory pool identifier wherein each memory pool identifier corresponds to a task. The second system includes a plurality of pseudo device drivers corresponding to first system input/output devices. Each pseudo d…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.