Question: Write a VHDL code for ALU 32 bit. ALU must do addition and subtraction. You are not allowed to use other libraries only this is

Write a VHDL code for ALU 32 bit. ALU must do addition and subtraction. You are not allowed to use other libraries only this is allowed
library ieee;
use ieee.std_logic_1164.all;
Please include comments for understanding the code. Thank you.

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