Design a microprogram controller that includes $8$ control instructions:$1.$MOV $($Move$)2.$NOT $($Logical NOT$)3.$AND $($Logical AND$)4.$OR $($Logical OR$)5.$XOR $($Logical XOR$)6.$JMP $($Unconditional Jump$)7.$JMPA $($Conditional Jump$)8.$STOP $($Halt$)($a$)$ Create a GRAFCET diagram that illustrates the sequence of these instructions.$($b$)$ Write the VHDL code for the microprogram controller based on the GRAFCET diagram created in $($a$).$