MdePkg/Library/BaseLib/Ia32/DivU64x32.S File Reference


Detailed Description

#------------------------------------------------------------------------------
#
# Copyright (c) 2006 - 2008, Intel Corporation. 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.
#
# Module Name:
#
# DivU64x32.S
#
# Abstract:
#
# Calculate the quotient of a 64-bit integer by a 32-bit integer
#
#------------------------------------------------------------------------------

ASM_GLOBAL ASM_PFX(InternalMathDivU64x32)

#------------------------------------------------------------------------------
# UINT64
# EFIAPI
# InternalMathDivU64x32 (
# IN UINT64 Dividend,
# IN UINT32 Divisor
# );
#------------------------------------------------------------------------------
ASM_PFX(InternalMathDivU64x32):
movl 8(esp), eax
movl 12(esp), ecx
xorl edx, edx
divl ecx
push eax # save quotient on stack
movl 8(esp), eax
divl ecx
pop edx # restore high-order dword of the quotient
ret


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