singleDriver.calculateChecksum(p);
p.calculateChecksum();
  public void setPatchName(Patch bank, int patchNum, String name) {    Patch p = getPatch(bank, patchNum);    IPatchDriver singleDriver = p.getDriver();    p.setName(name);    singleDriver.calculateChecksum(p);    putPatch(bank, p, patchNum);  }