Bit data shift amount detector

Details Bit data shift amount detector Bit data shift amount detector

1992-05-28

1993-11-09

Malzahn, David M.

Boots, shoes, and leggings

G06F 501

Patent

active

052608875

ABSTRACT:
This shift amount detector determines the shift amount to normalize binary bit data. It is provided with means to add, to an n bit data to be normalized, at least one bit of logical value "0" on the side of the least significant bit. The data with additional logical value "0" has its bits reversed by the bit reversing circuit when the data is negative or positive. The data with the additional logical value "0" is input to the bit detecting circuit as it is or as data with reversed bits according to the selection by the selecting circuit. The bit detecting circuit detects the bit position where "1" or "0" appears for the first time by searching the bits one by one starting from the most significant bit and outputs the result of detection to the shift amount calculating circuit. The shift amount calculating circuit determines the shift amount based on the detected bit position.

REFERENCES:
patent: 4553220 (1985-11-01), Swanson
patent: 4947358 (1990-08-01), Lamere et al.
patent: 5126963 (1992-06-01), Fukasawa
patent: 5153851 (1992-10-01), Kanazawa et al.

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