DD_SAVED_STOP
nd_bsw4(DD_SAVED_STOP, dd_saved_stop);
|| (!turbo && (nd_bsr4(DD_SAVED_STOP) != dd_saved_stop))
dd_saved_stop = nd_bsr4(DD_SAVED_STOP);
#define DD_NEXT (DD_SAVED_STOP + sizeof(char *))