MdePkg/Library/BaseLib/MultS64x64.c

   1 /** @file
   2   Math worker functions.
   3
   4   Copyright (c) 2006 - 2010, Intel Corporation. All rights reserved.<BR>
   5   SPDX-License-Identifier: BSD-2-Clause-Patent
   6
   7 **/
   8
   9 #include "BaseLibInternals.h"
  10
  11 /**
  12   Multiplies a 64-bit signed integer by a 64-bit signed integer and generates a
  13   64-bit signed result.
  14
  15   This function multiplies the 64-bit signed value Multiplicand by the 64-bit
  16   signed value Multiplier and generates a 64-bit signed result. This 64-bit
  17   signed result is returned.
  18
  19   @param  Multiplicand  A 64-bit signed value.
  20   @param  Multiplier    A 64-bit signed value.
  21
  22   @return Multiplicand * Multiplier.
  23
  24 **/
  25 INT64
  26 EFIAPI
  27 MultS64x64 (
  28   IN      INT64  Multiplicand,
  29   IN      INT64  Multiplier
  30   )
  31 {
  32   return (INT64)MultU64x64 ((UINT64)Multiplicand, (UINT64)Multiplier);
  33 }