write a VHDL quartus code and testbench for a $2$bit ALU. It should have two modes, $\text{'}0\text{'}$and $\text{'}1\text{'}.$It should perform logical $($and$,$nand$,$ or$,$nor$,$ xor, xnor, sll$,$ srl$)$and arithmetic $($addition$,$subraction$,$ division, modulus, multiplication, $1$s complement, $2$s complement$)$operations based on the mode. The code must be compatible with intel DE$-115$FPGA board. Use Behavioral modelling technique. MAKE SURE IT WORKS, OTHERWISE I WILL REPORT. MAKE SURE YOU WRITE IT IN TERMS OF SW AND LEDR!!! IT SHOULD HAVE TWO INPUTS A AND B EACH $2$ BIT. I WILL DOWNVOTE AND REPORT AND COMPLAIN IF ITS WRONG!! SO TIRED OF WRONG ANSWERS!!!