void model_write_action(void * obj, memory_order ord, uint64_t val);
void model_init_action(void * obj, uint64_t val);
uint64_t model_rmwr_action(void *obj, memory_order ord);
void model_write_action(void * obj, memory_order ord, uint64_t val);
void model_init_action(void * obj, uint64_t val);
uint64_t model_rmwr_action(void *obj, memory_order ord);