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+//Example 1.13: storage format for negative numbers in two’s complement using three-step approach:

+clc // clears the console window

+clear // clears the variable browser1 

+//***************************************************************************

+x= bitcmp (5,4)// complement of decimal number 5 in 4 bit representation.

+y=1;

+z=x+y //1 is added to the complement.

+a= dec2bin (z) //binary equivalent of decimal number.

+disp ( '-5 in 2''s complement form is=')

+disp (a)// 2's complement result.

+//**************************************************************************

+j= bitcmp (1,4)// complement of decimal number 1 in 4 bit representation.

+k=1;

+l=j+k //1 is added to the complement.

+m= dec2bin (l) //binary equivalent of decimal number.

+disp ( '-1 in 2''s complement form is=')

+disp (m)// 2's complement result.

+//**************************************************************************

+p= bitcmp (0,4)// complement of decimal number 0 in 4 bit representation.

+q=1;

+r=p+q //1 is added to the complement.

+s= dec2bin (r-(2^4),4) //binary equivalent of decimal number.

+disp ( '-0 in 2''s complement form is=')

+disp (s)// 2's complement result.