MdePkg/Library/BaseLib/Ia32/MultU64x32.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:
#
# MultU64x32.S
#
# Abstract:
#
# Calculate the product of a 64-bit integer and a 32-bit integer
#
#------------------------------------------------------------------------------
.code:
ASM_GLOBAL
ASM_PFX(InternalMathMultU64x32)
#------------------------------------------------------------------------------
# UINT64
# EFIAPI
# InternalMathMultU64x32 (
# IN UINT64 Multiplicand,
# IN UINT32 Multiplier
# );
#------------------------------------------------------------------------------
ASM_PFX(InternalMathMultU64x32):
movl 12(esp), ecx
movl ecx, eax
imull 8(esp), ecx # overflow not detectable
mull 0x4(esp)
addl ecx, edx
ret