MdePkg/Library/BaseLib/Ia32/MultU64x64.asm

   1 ;------------------------------------------------------------------------------
   2 ;
   3 ; Copyright (c) 2006, Intel Corporation
   4 ; All rights reserved. This program and the accompanying materials
   5 ; are licensed and made available under the terms and conditions of the BSD License
   6 ; which accompanies this distribution.  The full text of the license may be found at
   7 ; http://opensource.org/licenses/bsd-license.php
   8 ;
   9 ; THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  10 ; WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  11 ;
  12 ; Module Name:
  13 ;
  14 ;   MultU64x64.asm
  15 ;
  16 ; Abstract:
  17 ;
  18 ;   Calculate the product of a 64-bit integer and another 64-bit integer
  19 ;
  20 ;------------------------------------------------------------------------------
  21
  22     .386
  23     .model  flat,C
  24     .code
  25
  26 InternalMathMultU64x64  PROC    USES    ebx
  27     mov     ebx, [esp + 8]
  28     mov     edx, [esp + 16]
  29     mov     ecx, ebx
  30     mov     eax, edx
  31     imul    ebx, [esp + 20]
  32     imul    edx, [esp + 12]
  33     add     ebx, edx
  34     mul     ecx
  35     add     edx, ebx
  36     ret
  37 InternalMathMultU64x64  ENDP
  38
  39     END