source: vbox/trunk/src/VBox/Devices/EFI/FirmwareNew/MdePkg/Library/BaseLib/LShiftU64.c

/** @file
  Math worker functions.

  Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR>
  SPDX-License-Identifier: BSD-2-Clause-Patent

**/

#include "BaseLibInternals.h"

/**
  Shifts a 64-bit integer left between 0 and 63 bits. The low bits are filled
  with zeros. The shifted value is returned.

  This function shifts the 64-bit value Operand to the left by Count bits. The
  low Count bits are set to zero. The shifted value is returned.

  If Count is greater than 63, then ASSERT().

  @param  Operand The 64-bit operand to shift left.
  @param  Count   The number of bits to shift left.

  @return Operand << Count.

**/
UINT64
EFIAPI
LShiftU64 (
  IN      UINT64  Operand,
  IN      UINTN   Count
  )
{
  ASSERT (Count < 64);
  return InternalMathLShiftU64 (Operand, Count);
}