Data processing system
US4520441A · kind A · utility
25Cited by
10References
3Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Dec 11, 1981 |
| Grant date | May 28, 1985 |
| Priority date | — |
| Expiry date | Dec 11, 2001 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F12/0866
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A data processing system for supporting a virtual memory is disclosed. Prior to the start of main memory write operation, a processor checks to see if a store buffer has a vacant area to store data to be written into a main memory to execute a current instruction. If a page fault occurs during the main memory write operation, the processor continues to store the subsequent write data for the current instruction and the corresponding virtual or logical addresses in the store buffer to complete execution of the current instruction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.