VHDL Code for Full Subtractor

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written 5.6 years ago by

vedantchikhale • 830

Diagram:-

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Truth Table:-

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Formulae:-

Difference = A XOR B XOR C

Borrow = A'.B + B.C + A'.C

Code:-

-------- Full Subtractor with STD_LOGIC_VECTOR: --------
Library ieee;
USE ieee.std_logic_1164.all;
USE ieee.std_logic_signed.all;
-------------------------------------------------------
ENTITY Full Subtractor IS
GENERIC (N: INTEGER := 16); --- number of input bits
PORT (a,b,c: IN STD_LOGIC_VECTOR(N-1 …

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