Interruptable microprogram controller for microcomputer systems

Details Interruptable microprogram controller for microcomputer systems Interruptable microprogram controller for microcomputer systems

1980-08-01

1984-03-20

Shaw, Gareth D.

Boots, shoes, and leggings

364900, G06F 304

Patent

active

044384920

ABSTRACT:
A microprogram controller, in a microcomputer system used as an address sequencer intended for controlling the sequence of execution of microinstructions in a microprogram memory, is presented. The microprogram controller includes architecture that provides the capability to asynchronously receive indications of an event, break from the microinstruction sequence in response, branch to control of subroutine consisting of a predetermined microinstruction sequence directed to responding to the event, and returning to the interrupted sequence upon completion of the subroutine.

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patent: 3821715 (1974-06-01), Hoff, Jr.
patent: 3839705 (1974-10-01), Davis et al.
patent: 3972030 (1976-07-01), Bailey, Jr.
patent: 4080652 (1978-03-01), Cronshaw
patent: 4087852 (1978-05-01), Campbell
patent: 4115852 (1978-09-01), Rozell

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