DD_SAVED_LIMIT
nd_bsw4(DD_SAVED_LIMIT, dd_saved_limit);
|| (!turbo && (nd_bsr4(DD_SAVED_LIMIT) != dd_saved_limit))
slimit = nd_bsr4(DD_SAVED_LIMIT);
slimit = nd_bsr4(DD_SAVED_LIMIT);
dd_saved_limit = nd_bsr4(DD_SAVED_LIMIT);
#define DD_SAVED_START (DD_SAVED_LIMIT + sizeof(char *))