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      1 ;------------------------------------------------------------------------------
      2 ;
      3 ; Copyright (c) 2006, Intel Corporation. All rights reserved.<BR>
      4 ; 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 ;   DivU64x32.nasm
     15 ;
     16 ; Abstract:
     17 ;
     18 ;   Calculate the quotient of a 64-bit integer by a 32-bit integer
     19 ;
     20 ;------------------------------------------------------------------------------
     21 
     22     SECTION .text
     23 
     24 ;------------------------------------------------------------------------------
     25 ; UINT64
     26 ; EFIAPI
     27 ; InternalMathDivU64x32 (
     28 ;   IN      UINT64                    Dividend,
     29 ;   IN      UINT32                    Divisor
     30 ;   );
     31 ;------------------------------------------------------------------------------
     32 global ASM_PFX(InternalMathDivU64x32)
     33 ASM_PFX(InternalMathDivU64x32):
     34     mov     eax, [esp + 8]
     35     mov     ecx, [esp + 12]
     36     xor     edx, edx
     37     div     ecx
     38     push    eax                     ; save quotient on stack
     39     mov     eax, [esp + 8]
     40     div     ecx
     41     pop     edx                     ; restore high-order dword of the quotient
     42     ret
     43 
     44