Shift arithmetic device

Details Shift arithmetic device Shift arithmetic device

1979-06-27

1982-08-17

Shaw, Gareth D.

Boots, shoes, and leggings

G06F 700, G11C 1900

Patent

active

043453163

ABSTRACT:
A shift arithmetic device which has a circulating shifter for shifting N-bit information by a specified number of bits and a set circuit for setting logic "O" or "1" in the shifted N-bit information at the bit positions corresponding to the specified number of bits shifted. A memory having stored therein N-bit patterns whose arrangements of logic "0" and "1" sequentially change and a bit arithmetic unit for executing logical processing, for each bit, between N-bit pattern read from an address of the memory corresponding to the number of bits shifted and N-bit information shifted by the circulating shifter.

REFERENCES:
patent: 3543245 (1970-11-01), Nutter
patent: 4005391 (1977-01-01), MacPherson
patent: 4079459 (1978-03-01), Grant,Jr.
patent: 4085447 (1978-04-01), Pertl et al.
patent: 4139899 (1979-02-01), Tulpule et al.

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