audk/MdePkg/Library/BaseLib/Ia32/DivU64x32Remainder.c

/** @file
  Set error flag for all division functions

  Copyright (c) 2006 - 2007, Intel Corporation<BR>
  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.

**/

//
// Include common header file for this module.
//


UINT64
EFIAPI
InternalMathDivRemU64x32 (
  IN      UINT64                    Dividend,
  IN      UINT32                    Divisor,
  OUT     UINT32                    *Remainder
  )
{
  _asm {
    mov     ecx, Divisor
    mov     eax, dword ptr [Dividend + 4]
    xor     edx, edx
    div     ecx
    push    eax
    mov     eax, dword ptr [Dividend + 0]
    div     ecx
    mov     ecx, Remainder
    jecxz   RemainderNull                      // abandon remainder if Remainder == NULL
    mov     [ecx], edx
RemainderNull:
    pop     edx
  }
}