Virtual memory data processor
US4488228A · kind A · utility
22Cited by
14References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 3, 1982 |
| Grant date | Dec 11, 1984 |
| Priority date | — |
| Expiry date | Dec 3, 2002 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/141
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A data processor capable of automatically storing in an external memory all essential information relating to the internal state thereof upon the detection of an access fault during instruction execution. Upon correction of the cause of the fault, the data processor automatically retrieves the stored state information and restores the state thereof in accordance with the retrieved state information. The data processor then resumes execution of the instruction. The faulted access may be selectively rerun upon the resumption of instruction execution. Means are provided to verify that the retrieved state information is valid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.