1.37 Because A − B = A + (−B), the subtraction of signed numbers can be accomplished by  adding the complement. Subtract each of the following pairs of 5-bit binary numbers by  adding the complement of the subtrahend to the minuend. Indicate when an overflow  occurs. Assume that negative numbers are represented in 1's complement.  (b) 11010       −11001  (c) 10110      −01101  Repeat the question using 2's complement to represent negative numbers.

Database System Concepts
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ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
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1.37 Because A − B = A + (−B), the subtraction of signed numbers can be accomplished by 
adding the complement. Subtract each of the following pairs of 5-bit binary numbers by 
adding the complement of the subtrahend to the minuend. Indicate when an overflow 
occurs. Assume that negative numbers are represented in 1's complement. 
(b) 11010 
     −11001 

(c) 10110 
    −01101 

Repeat the question using 2's complement to represent negative numbers.


 

 

 

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