Multifunctional arithmetic and logic unit in semiconductor integ

Details Multifunctional arithmetic and logic unit in semiconductor integ Multifunctional arithmetic and logic unit in semiconductor integ

1977-07-14

1980-09-30

Malzahn, David H.

Boots, shoes, and leggings

G06F 750

Patent

active

042259347

ABSTRACT:
A computing system includes a central processor unit (CPU) in combination with external memory units. The CPU includes an arithmetic logic (ALU), an instruction register, a random access memory, and a control system for interconnecting the functional elements of the CPU via sequential use of a common parallel buss, enabling the CPU to be defined on a single chip. The ALU is capable of performing eight separate arithmetic and logic functions utilizing common logic gates.

REFERENCES:
patent: 3231725 (1966-01-01), Davis et al.
patent: 3454310 (1969-07-01), Wilhelm, Jr.
patent: 3576984 (1971-05-01), Gregg, Jr.
patent: 3584207 (1971-06-01), Huddinge et al.
patent: 3596074 (1971-07-01), Mitrofanoff
patent: 3596075 (1971-07-01), Weelden
Lucas, "An Accumulator Chip", IEEE Trans. on Computers, vol. C-18, No. 2, Feb. 1969, pp. 105-114.

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