Interrupt scan and processing system for a data processing system
US4020471A · kind A · utility
27Cited by
4References
16Claims
0Family size
Assignee
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Key dates
| Filing date | Jun 30, 1975 |
| Grant date | Apr 26, 1977 |
| Priority date | — |
| Expiry date | Jun 30, 1995 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F13/26
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In a data processing system, interrupt service is provided for any one of a plurality of interrupt sources which presents an interrupt signal which has a higher interrupt level than that of the currently active source. Interrupt flags are provided for each potential interrupt source, which flags are activated in response to the receipt of an interrupt signal from the interrupt source associated therewith. A scan for the highest interrupt level is made and interrupt service is provided for the interrupt source associated therewith.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.