MdePkg/Library/BaseLib/Ia32/DivU64x32.S

   1 //
   2 // Include common header file for this module.
   3 //
   4 #include "CommonHeader.h"
   5
   6 #------------------------------------------------------------------------------
   7 #
   8 # Copyright (c) 2006, Intel Corporation
   9 # All rights reserved. This program and the accompanying materials
  10 # are licensed and made available under the terms and conditions of the BSD License
  11 # which accompanies this distribution.  The full text of the license may be found at
  12 # http://opensource.org/licenses/bsd-license.php
  13 #
  14 # THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  15 # WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  16 #
  17 # Module Name:
  18 #
  19 #   DivU64x32.asm
  20 #
  21 # Abstract:
  22 #
  23 #   Calculate the quotient of a 64-bit integer by a 32-bit integer
  24 #
  25 #------------------------------------------------------------------------------
  26
  27 .globl ASM_PFX(InternalMathDivU64x32)
  28
  29 #------------------------------------------------------------------------------
  30 # UINT64
  31 # EFIAPI
  32 # InternalMathDivU64x32 (
  33 #   IN      UINT64                    Dividend,
  34 #   IN      UINT32                    Divisor
  35 #   );
  36 #------------------------------------------------------------------------------
  37 ASM_PFX(InternalMathDivU64x32):
  38     movl    8(%esp), %eax
  39     movl    12(%esp), %ecx
  40     xorl    %edx, %edx
  41     divl    %ecx
  42     push    %eax
  43     movl    8(%esp), %eax
  44     divl    %ecx
  45     pop     %edx
  46     ret