]>
git.proxmox.com Git - mirror_edk2.git/blob - MdePkg/Library/BaseLib/Ia32/MultU64x64.c
e2b7e6852f39e92f1174654162e9eaf2a1f65a26
2 Calculate the product of a 64-bit integer and another 64-bit integer
4 Copyright (c) 2006 - 2007, Intel Corporation<BR>
5 All rights reserved. This program and the accompanying materials
6 are licensed and made available under the terms and conditions of the BSD License
7 which accompanies this distribution. The full text of the license may be found at
8 http://opensource.org/licenses/bsd-license.php
10 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
11 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
16 // Include common header file for this module.
21 Multiples a 64-bit unsigned integer by a 64-bit unsigned integer
22 and generates a 64-bit unsigned result.
24 This function multiples the 64-bit unsigned value Multiplicand by the 64-bit
25 unsigned value Multiplier and generates a 64-bit unsigned result. This 64-
26 bit unsigned result is returned.
28 @param Multiplicand A 64-bit unsigned value.
29 @param Multiplier A 64-bit unsigned value.
31 @return Multiplicand * Multiplier
36 InternalMathMultU64x64 (
37 IN UINT64 Multiplicand
,
42 mov ebx
, dword ptr
[Multiplicand
+ 0]
43 mov edx
, dword ptr
[Multiplier
+ 0]
46 imul ebx
, dword ptr
[Multiplier
+ 4]
47 imul edx
, dword ptr
[Multiplicand
+ 4]