registry.add("del", new Del());
registry.add("bsave", new BSave());
registry.add("bload", new BLoad());
registry.add("blist", new BList());
registry.add("bmk", new BMk());
registry.add("bget", new BGet());
registry.add("brev", new BRev());
registry.add("vlist", new VList());
registry.add("vmk", new VMk());