VHDL Component Declaration
The following VHDL component declaration is located in the VHDL Design File (.vhd) Definition ALTERA_PRIMITIVES_COMPONENTS.VHD located in the <Intel® Quartus® Prime installation directory>\libraries\vhdl\altera directory.
component EXP
    port (
        a_in : in std_logic;
        a_out : out std_logic);
end component;