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Author: Prashant Verma
Forked from: Vaibhav1063/3-BIT BINARY ADDER-SUBTRACTOR
Project access type: Public
Description:
A control line M holds a binary value of either 0 or 1 which determines the operation is carried out whether addition or subtraction.
The RESULT will be A-B for signed number, for unsigned number if A>=B.
For unsigned A<B the result will be 2's complement of B-A i.e. , first calculate B+A`+1 and then take 2's complement of the result of B+A`+1.
suppose A=6, B=7 Now , A=110 and B=111 as it is clear that A<B so
B+A`+1=111+001+1
=1000+1
=1001
2's complement of 1001 is (1001)`+1 i.e. , 0110+1=0111
Created: Oct 29, 2021
Updated: Aug 26, 2023
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