ice_state
enum ice_state state;
ice_set_state(volatile uint32_t *s, enum ice_state bit)
ice_clear_state(volatile uint32_t *s, enum ice_state bit)
ice_testandset_state(volatile uint32_t *s, enum ice_state bit)
ice_testandclear_state(volatile uint32_t *s, enum ice_state bit)
ice_test_state(volatile uint32_t *s, enum ice_state bit)