Please write the code using VHDL with suffecient comments.

Design a simple processor with 4 4-bit registers and a 16- word memory with 8-bit words. The processor should be able to pick up data from a switch register which you operate manuallyo set up a bit pattern and display the outputs through LEDs. It can perform all the basic operations- add, subtract, multiply, and divide as well as data movement operations. However, due to limitations on the size of your instruction multiply or divide instructions in your instruction repertoire. Even if you could, you will not do that in this primitive design. Hence, you will design only a basic set of instructions and demonstrate with the help of those instructions how you may perform those instructions. Your complete design will result in a system that executes all those instructions step by step. For reporting the project, you will follow the guidelines given in the last class. s, you may not have the luxury of having a separate