MdePkg/Library/BaseLib/Ia32/DivU64x32.S

   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 #   DivU64x32.asm
  15 #
  16 # Abstract:
  17 #
  18 #   Calculate the quotient of a 64-bit integer by a 32-bit integer
  19 #
  20 #------------------------------------------------------------------------------
  21
  22 .globl ASM_PFX(InternalMathDivU64x32)
  23
  24 #------------------------------------------------------------------------------
  25 # UINT64
  26 # EFIAPI
  27 # InternalMathDivU64x32 (
  28 #   IN      UINT64                    Dividend,
  29 #   IN      UINT32                    Divisor
  30 #   );
  31 #------------------------------------------------------------------------------
  32 ASM_PFX(InternalMathDivU64x32):
  33     movl    8(%esp), %eax
  34     movl    12(%esp), %ecx
  35     xorl    %edx, %edx
  36     divl    %ecx
  37     push    %eax
  38     movl    8(%esp), %eax
  39     divl    %ecx
  40     pop     %edx
  41     ret