Microprogram controlled binary decimal coded byte operator devic

Details Microprogram controlled binary decimal coded byte operator devic Microprogram controlled binary decimal coded byte operator devic

1975-01-06

1977-08-09

Malzahn, David H.

Registers

Transfer mechanism

Traveling pawl

235169, 364200, G06F 738

Patent

active

040412903

ABSTRACT:
A microprogram controlled operator device is described which processes bytes each of which is comprised of an equal number of binary-coded decimal figures. The device comprises first and second byte stores each of a multi-byte capacity, a logical and arithmetical operator circuit having inputs connected to read-out outputs of said stores and having an output to a buffer register and code handling organization, preferably further enabling "raw" byte inputting. An output of the code handling organization is connected to an input of a byte code processing arrangement which includes a multiplexer circuit having outputs to write-in inputs of the first and second stores and having further inputs connected to external data supplying means and to read-out outputs from the said stores. The organization further has an output to the external equipment wherein said device is connected.

REFERENCES:
patent: 3571582 (1971-03-01), Kelling
patent: 3621219 (1971-11-01), Washizuka et al.
patent: 3707622 (1972-12-01), Hatano et al.
patent: 3775601 (1973-11-01), Hatano et al.
patent: 3859514 (1975-01-01), Kashio
patent: 3899667 (1975-08-01), Simons

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