mults64x64.c

来自「EFI BIOS是Intel提出的下一代的BIOS标准。这里上传的Edk源代码是」· C语言 代码 · 共 50 行

/*++

Copyright (c) 2004 - 2006, Intel Corporation                                                         
All rights reserved. This program and the accompanying materials                          
are licensed and made available under the terms and conditions of the BSD License         
which accompanies this distribution.  The full text of the license may be found at        
http://opensource.org/licenses/bsd-license.php                                            
                                                                                          
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.  


Module Name:

  MultS64x64.c
  
Abstract: 

  Math worker functions.

--*/

#include "BaseLibInternal.h"

/**
  Multiples a 64-bit signed integer by a 64-bit signed integer and generates a
  64-bit signed result.

  This function multiples the 64-bit signed value Multiplicand by the 64-bit
  signed value Multiplier and generates a 64-bit signed result. This 64-bit
  signed result is returned.

  If the result overflows, then ASSERT().

  @param  Multiplicand  A 64-bit signed value.
  @param  Multiplier    A 64-bit signed value.

  @return Multiplicand * Multiplier

**/
INT64
EFIAPI
MultS64x64 (
  IN      INT64                     Multiplicand,
  IN      INT64                     Multiplier
  )
{
  return (INT64)MultU64x64 (Multiplicand, Multiplier);
}