4. Design and simulate a 4-bit packed-energy detector. F(ABCD) = 1 if and only if all the energy in the four-bit number is side-by-side with no zeroes between any energy bits. Examples of packed energy are ABCD = 1000, ABCD = 0001, ABCD = 0110, ABCD = 0111. But 1001 is not packed-energy! Use with-select syntax.

Please I need to know what will be the code and how to write the code in quartus.