Design a combinational logic circuit using VHDL coding that executes the following arithmetic and logic unit (ALU) functions for the given inputs for registers A and B, which are 8 bits each: TABLE 8-2 Function Table for ALU (a) Show and explain your VHDL code ( 25 points). (b) Show that your VHDL code is synthesized successfully ( 25 points). (c) Show and describe the RTL schematics (register transfer level circuit) of your ALU (25 points). (d) Prepare a simulation code that tests each functionality. Explain the functionality using the behavioral model ( 25 points)