What is the device with VHDL model given here? library ieee; use ieee.std_logic_1164.all; entity device is \[ \begin{array}{c} \text { port (a0, a1 : in std_logic; } \\ \mathrm{x}: \text { in std_logic; } \\ \mathrm{y}: \text { out std_logic ); } \end{array} \] end entity; architecture Behavioral of device is begin y