Jump structure for a digital control system
US4115853A · kind A · utility
19Cited by
3References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 21, 1976 |
| Grant date | Sep 19, 1978 |
| Priority date | — |
| Expiry date | Dec 21, 1996 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B2219/13056
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A numerical control system processor is disclosed which stores and executes a control program of the type found in programmable controllers. A number of editing features are provided which allow changes to be made in the control program including insert and delete functions which result in the shifting of control program instructions. A jump table is provided to store memory addresses of jump instruction targets and this table is updated by special instructions within the control program after editing functions are performed. Jump instructions refer to this table when executed to obtain their target memory address.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.