/* If 16-bit I/O port operations are not supported, then ASSERT(). If Port is not aligned on a 16-bit boundary, then ASSERT(). If StartBit is greater than 15, then ASSERT(). If EndBit is greater than 15, then ASSERT(). If EndBit is less than StartBit, then ASSERT(). If OrData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT(). */
UINT16 EFIAPI IoBitFieldOr16(IN UINTN Port, IN UINTN StartBit, IN UINTN EndBit, IN UINT16 OrData)
/* If 16-bit I/O port operations are not supported, then ASSERT(). If Port is not aligned on a 16-bit boundary, then ASSERT(). If StartBit is greater than 15, then ASSERT(). If EndBit is greater than 15, then ASSERT(). If EndBit is less than StartBit, then ASSERT(). If OrData is larger than the bitmask value range specified by StartBit and EndBit, then ASSERT(). */
UINT16 EFIAPI IoBitFieldOr16(IN UINTN Port, IN UINTN StartBit, IN UINTN EndBit, IN UINT16 OrData)
{
  return IoWrite16 (
           Port,
           BitFieldOr16 (IoRead16 (Port), StartBit, EndBit, OrData)
           );
}