...
      if (node->id < 3 && attached > node->id + 1) {
	      value = GBASIONormalSetSi(value, GBASIONormalGetIdleSo(node->p->players[node->id + 1]->d.p->siocnt));
      } else {
	      value = GBASIONormalFillSi(value);
      }
      
      enum mLockstepPhase transferActive;
      ATOMIC_LOAD(transferActive, node->p->d.transferActive);
      if (node->id > 0 && transferActive == TRANSFER_IDLE) {
	      int try;
	      for (try = 0; try < 3; ++try) {
		      GBASIONormal parentSiocnt;
		      ATOMIC_LOAD(parentSiocnt, node->p->players[node->id - 1]->d.p->siocnt);
		      if (ATOMIC_CMPXCHG(node->p->players[node->id - 1]->d.p->siocnt, parentSiocnt, GBASIONormalSetSi(parentSiocnt, GBASIONormalGetIdleSo(value)))) {
			      break;
		      }
	      }
...