gboolean sgen_card_table_get_card_data (guint8 *dest, mword address, mword cards) MONO_INTERNAL;
+guint8* sgen_card_table_update_mod_union_from_cards (guint8 *dest, guint8 *start_card, size_t num_cards) MONO_INTERNAL;
guint8* sgen_card_table_update_mod_union (guint8 *dest, char *obj, mword obj_size, size_t *out_num_cards) MONO_INTERNAL;
void sgen_card_table_init (SgenRemeberedSet *remset) MONO_INTERNAL;