[0 0 0 0] [0 0 0 0] ;; (println opcode empty-opcode)
    NOT match ;; (it's an else part of if)
    Executing opcode =>  [0 0 0 0] ... ;; (println "Executing opcode => " opcode "...")

    [0 0 0 0] [0 0 0 0]
    NOT match
    Executing opcode =>  [0 0 0 0] ...

    [0 0 0 0] [0 0 0 0]
    NOT match
    Executing opcode =>  [0 0 0 0] ...