This is only just 4 bit alu implemented on logisim software and given the extension of adder and subtractor. If wanted for multiplier and divisor mail me- pranaypatil@mitaoe.ac.in
ps: no charges will be there.
steps
open logisim first in it open all the .circ files files in order as
- 4 BIT ALU.cir
- 4BITADDER.circ
- 4BIT SUBTRACTORmodified.circ