Journal of Computer Engineering & Information TechnologyISSN : 2324-9307

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Research Article, J Comput Eng Inf Technol Vol: 4 Issue: 1

Logic Scheme for Determining the Number of Leftmost Insignificant Digits in a Bit-Set of Any Length

Dimitar S Tyanev* and Yulka P Petkova*
Department of Computer Science and Technologies, Technical University of Varna, Bulgaria
Corresponding author : Dimitar S Tyanev
Department of Computer Science and Technologies, Technical University of Varna, Varna, Bulgaria
E-mail: [email protected]
Yulka P Petkova
Department of Computer Science and Technologies, Technical University of Varna, Varna, Bulgaria
E-mail:[email protected]
Received: January 24, 2015 Accepted: April 01, 2015 Published: April 07, 2015
Citation: Dimitar S Tyanev, Yulka P Petkova (2015) Logic Scheme for Determining the Number of Leftmost Insignificant Digits in a Bit-Set of any Length. J Comput Eng Inf Technol 4:1. doi:10.4172/2324-9307.1000123

Abstract

Logic Scheme for Determining the Number of Leftmost Insignificant Digits in a Bit-Set of Any Length

The synthesized logic scheme is capable of determining the number of the leftmost insignificant digits of numbers, which are presented in a bit-set of any length. The content of the bitset can be interpreted in different ways – as signed magnitude, one’s complement or two’s complement number and also as fractional binary number. This allows the scheme to be used in devices working both with fixed-point and floating point. The number of leftmost insignificant digits of the number is necessary to implement the next highly productive one-clock left shift. This micro-operation has place in the algorithms of various machine operations performed in the digital processor. The suggested scheme does not depend on the length of the bit-set because of the cascade principle applied. The synthesized building unit solves the same problem and has a minimum length of 3 bits.

Keywords: Shift left; Insignificant digit; Bit-set number

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