lispobj copy_unboxed_object(lispobj object, long nwords);
lispobj copy_large_object(lispobj object, long nwords);
lispobj copy_object(lispobj object, long nwords);
lispobj copy_unboxed_object(lispobj object, long nwords);
lispobj copy_large_object(lispobj object, long nwords);
lispobj copy_object(lispobj object, long nwords);