Circuit for detecting the position of an extreme "1" bit in a bi

Details Circuit for detecting the position of an extreme "1" bit in a bi Circuit for detecting the position of an extreme "1" bit in a bi

1992-11-18

1994-09-06

Mai, Tan V.

Boots, shoes, and leggings

G06F 700

Patent

active

053454057

ABSTRACT:
Apparatus for detecting the leftmost "1" bit or the rightmost "1" bit of an input number includes a binary tree (11) of two-inputs OR-gates (13, 14, 15, 16) or their logical equivalent to which the input number is applied in parallel and from which signals are derived and applied as inputs and to control a plurality of trees (MA, MB, MC) of two-input multiplexers (12) from the outputs (E0, E1, E2, E3) of which appear the bits of a number representing the position in the input number of the leftmost "1" or the rightmost "1" bit.

REFERENCES:
patent: 3678259 (1972-07-01), Kyser
patent: 4760551 (1985-07-01), Yokomizo et al.
patent: 4785421 (1988-11-01), Takahashi et al.
patent: 5091874 (1992-02-01), Watanabe et al.

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