oldRootSet.push(object); }
  private final void processRootBufsAndCount() {    VM_Address object;    rootCounter = 0;    while (!(object = newRootSet.pop()).isZero()) {      if (RefCountSpace.INC_DEC_ROOT)	decBuffer.push(object);      else 	RCBaseHeader.unsetRoot(object);      rootCounter++;    }  }