Naslov
Shift Network Having a Mask Generator and a Rotator

Autori
Tulpule, B. R. ; Gajski, D. D.

Broj patenta
US4, 139, 899

Godina
1979

Datum patenta
13.02.1979.

Nositelj prava
Burroughs Corporation, Philadelphia, US

Sažetak
In a network for transferring a source field in a source word into a destination field in a destination word two basic hardware sub-functions are utilized: rotation and mask vector generation. In the network the destination field of a destination word is masked. Concurrently in the network, a source word is rotated bringing the source field thereof into corresponding alignment with the masked destination field and all but the source field of the source word is masked. Subsequent logical combining of the masked destination word and the rotated and masked source word generates the desired field transference. In one embodiment the required masking operation is accomplished during a single pass of the destination and source words through the network. In an alternate embodiment using less masking hardware only half of the required masking is accomplished during each pass and two passes are required before the logical combining to achieve the desired field transference.

Izvorni jezik
Engleski

Znanstvena područja
Računarstvo

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