Parallel digital arithmetic device having a variable number of i

Details Parallel digital arithmetic device having a variable number of i Parallel digital arithmetic device having a variable number of i

1975-05-01

1976-10-19

Malzahn, David H.

Registers

Transfer mechanism

Traveling pawl

G06F 750

Patent

active

039872912

ABSTRACT:
A carry look-ahead parallel digital adder having a relatively wide overall data flow width and a pair of automatically adjustable boundary mechanisms for subdividing the adder into plural independent operating zones of variable width and variable location. Anywhere from one to three independent zones may be obtained. Independent external carry-in and carry-out lines are provided for each zone and the connecting points for such lines are automatically shifted in step with the movement of the zone boundaries.

REFERENCES:
patent: 3188453 (1965-06-01), Schneider
patent: 3683163 (1972-08-01), Hanslip
J. L. Rosenfeld, "Variable - Width Adder for Microprogramed Computers Used for Emulation," IBM Tech. Disclosure Bulletin, vol. 15, No. 4, Sept. 1972 pp. 1149-1150.

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