MdePkg/BaseLib: Add bit field population calculating methods

[mirror_edk2.git] / MdePkg / Library / BaseLib / MultS64x64.c

/** @file\r
  Math worker functions.\r
\r
  Copyright (c) 2006 - 2010, Intel Corporation. All rights reserved.<BR>\r
  This program and the accompanying materials\r
  are licensed and made available under the terms and conditions of the BSD License\r
  which accompanies this distribution.  The full text of the license may be found at\r
  http://opensource.org/licenses/bsd-license.php.\r
\r
  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
\r
**/\r
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#include "BaseLibInternals.h"\r
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/**\r
  Multiplies a 64-bit signed integer by a 64-bit signed integer and generates a\r
  64-bit signed result.\r
\r
  This function multiplies the 64-bit signed value Multiplicand by the 64-bit\r
  signed value Multiplier and generates a 64-bit signed result. This 64-bit\r
  signed result is returned.\r
\r
  @param  Multiplicand  A 64-bit signed value.\r
  @param  Multiplier    A 64-bit signed value.\r
\r
  @return Multiplicand * Multiplier.\r
\r
**/\r
INT64\r
EFIAPI\r
MultS64x64 (\r
  IN      INT64                     Multiplicand,\r
  IN      INT64                     Multiplier\r
  )\r
{\r
  return (INT64)MultU64x64 ((UINT64) Multiplicand, (UINT64) Multiplier);\r
}\r