void TemplateTable::def(Bytecodes::Code code, int flags, TosState in, TosState out, void (*gen)(int arg), int arg) {

  {- -------------------------------------------
  (1) (変数宣言など)
      ---------------------------------------- -}

      // should factor out these constants
      const int ubcp = 1 << Template::uses_bcp_bit;
      const int disp = 1 << Template::does_dispatch_bit;
      const int clvm = 1 << Template::calls_vm_bit;
      const int iswd = 1 << Template::wide_bit;
      // determine which table to use
      bool is_wide = (flags & iswd) != 0;
      // make sure that wide instructions have a vtos entry point
      // (since they are executed extremely rarely, it doesn't pay out to have an
      // extra set of 5 dispatch tables for the wide instructions - for simplicity
      // they all go with one table)
      assert(in == vtos || !is_wide, "wide instructions have vtos entry point only");

  {- -------------------------------------------
  (1) 対応する Template オブジェクトを作成し, Template::initialize() でフィールドの初期化を行う.
      ---------------------------------------- -}

      Template* t = is_wide ? template_for_wide(code) : template_for(code);
      // setup entry
      t->initialize(flags, in, out, gen, arg);

  {- -------------------------------------------
  (1) (assert)
      ---------------------------------------- -}

      assert(t->bytecode() == code, "just checkin'");
    }