Microsequencer in a data processing system using stack storage f

Details Microsequencer in a data processing system using stack storage f Microsequencer in a data processing system using stack storage f

1981-04-23

1987-07-07

Heckler, Thomas M.

Boots, shoes, and leggings

G06F 922

Patent

active

046791388

ABSTRACT:
A data processing system in which macroinstructions are decoded to provide a sequence of microinstructions comprising one or more microroutines. A stack storage means stores data for use in such microroutines. The final microinstruction of the microroutines is a request to retrieve or remove data from the stack. When no data is present therein (the stack is empty) a new macroinstruction is requested and when data is present in the stack the microroutine returns to another mircoroutine in which it is acting as a micro-subsroutine to permit continuation of the other microroutine.

REFERENCES:
patent: 4080648 (1978-03-01), Asano et al.
patent: 4118776 (1978-10-01), Isomura
patent: 4159520 (1979-06-01), Prioste
patent: 4176394 (1979-11-01), Kaminski et al.

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