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Author: 2100290130101
Forked from: Rohit Kumar Chaurasia /Carry look ahead Adder
Project access type: Public
Description:
Implement 3-bit carry look-ahead adder.
sample input
A2A1A0= 110
B2B1B0= 101
expected output
S2S1S0 = 011,
C3= 1
Theory: Carry look ahead Adder: Carry look-ahead adder utilizes the logic gates to look at the lower order bits of augmend and addend to see if a higher order carry is to be generated or not. Carry look-ahead uses the two concepts of carry propagate and carry generate functions. This adder uses the following equations for ith stage: Carry propagate Pi=Ai(xor)Bi Carry generate Gi=Ai.Bi Sum Si= Pi(xor)Ci Carry Ci+1=Gi+Pi.Ci The circuit diagram of 3-bit Carry Look-Ahead Adder is shown in the following figure:
Created: Oct 19, 2022
Updated: Aug 27, 2023
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