Task handling in a data processing apparatus
US4103330A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 16, 1977 |
| Grant date | Jul 25, 1978 |
| Priority date | — |
| Expiry date | Feb 16, 1997 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F9/4812
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A data processing apparatus for processing digital data in accordance with a plurality of predetermined tasks of preassigned priority values and identified by a respective plurality of devices connected to the data processing apparatus. Each device is capable of generating the respective task request signal when requiring service by the data processing apparatus. The data processing apparatus includes a first memory for storing a plurality of executable instructions, a second memory for storing addresses of locations in the first memory, a priority determining device responsive to the task request signals for generating a control signal indicative of the task request signal having the highest current priority value, and an addressing device responsive to the control signal for providing an address to the second memory, the addressed location in the second memory containing the next address of the first memory to be accessed for continuation of the processing of the requesting task and thus servicing of the respective device, wherein said next address is a part of an executed instruction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.