1 /** 2 Calculate the quotient of a 64-bit integer by a 32-bit integer 3 4 Copyright (c) 2006 - 2007, Intel Corporation. All rights reserved.<BR> 5 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 9 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. 12 13 **/ 14 15 #include "BaseLibInternals.h" 16 17 UINT64 18 EFIAPI 19 InternalMathDivU64x32 ( 20 IN UINT64 Dividend, 21 IN UINT32 Divisor 22 ) 23 { 24 _asm { 25 mov eax, dword ptr [Dividend + 4] 26 mov ecx, Divisor 27 xor edx, edx 28 div ecx 29 push eax ; save quotient on stack 30 mov eax, dword ptr [Dividend] 31 div ecx 32 pop edx ; restore high-order dword of the quotient 33 } 34 } 35 36
