Arithmetic logic and shift device

Details Arithmetic logic and shift device Arithmetic logic and shift device

1986-06-20

1988-07-26

Harkcom, Gary V.

Boots, shoes, and leggings

G06F 738

Patent

active

047605448

ABSTRACT:
A device which includes an arithmetic logic unit and a data shifter--e.f. a barrel shifter. The outputs of these are cross-coupled to their inputs by separate feedback connections. A third feedback connection is provided between the output of the arithmetic logic unit and another of its inputs. For added versatility in operation, registers at the output of the arithmetic logic unit and the barrel shifter may include each a selectable by-pass and/or additional registers may be included in parallel therewith. The device is reconfigured by the control of input multiplexers interposed between the feedback connections and the arithmetic logic unit and the barrel shifter.

REFERENCES:
patent: 4405992 (1983-09-01), Blau et al.
patent: 4467444 (1984-08-01), Harmon, Jr. et al.

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