Jump structure for a digital control system

Details Jump structure for a digital control system Jump structure for a digital control system

1976-12-21

1978-09-19

Shaw, Gareth D.

Boots, shoes, and leggings

G06F 906

Patent

active

041158539

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.

REFERENCES:
patent: 3731280 (1973-05-01), Shevlin
patent: 3969701 (1976-07-01), Hemdal
patent: 3969723 (1976-07-01), Kennicott

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