Microprocessor system

Details Microprocessor system Microprocessor system

1977-11-21

1979-03-13

Zache, Raulfe B.

Boots, shoes, and leggings

G06F 100

Patent

active

041445635

ABSTRACT:
A single chip large scale integration processor processes its own on-chip control storage array while including the ability to also address supplemental off-chip control storage and to use such off-chip supplemental storage in substitution for portions of the on-chip storage. The processor further includes simplified arithmetic and logic (ALU) circuitry wherein the adder circuit has portions selectively gated to perform other functions with a reduced logic circuit requirement. Processor function is also enhanced by providing a read only storage (ROS) array in association with the ALU to provide multiple register loading and control functions in response to certain addresses. The processor also includes memory control circuitry that permits a group of like processors to access a single, external memory on a dynamic, prioritized basis.

REFERENCES:
patent: 3995222 (1976-11-01), Mitarai
patent: 4021655 (1977-05-01), Healey et al.
patent: 4063221 (1977-12-01), Watson et al.
patent: 4079451 (1978-03-01), Woods et al.

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