/** @file Calculate the quotient of a 64-bit integer by a 32-bit integer 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. **/ /** Divides a 64-bit unsigned integer by a 32-bit unsigned integer and generates a 64-bit unsigned result. This function divides the 64-bit unsigned value Dividend by the 32-bit unsigned value Divisor and generates a 64-bit unsigned quotient. This function returns the 64-bit unsigned quotient. @param Dividend A 64-bit unsigned value. @param Divisor A 32-bit unsigned value. @return Dividend / Divisor **/ UINT64 EFIAPI InternalMathDivU64x32 ( IN UINT64 Dividend, IN UINT32 Divisor ) { _asm { mov eax, dword ptr [Dividend + 4] mov ecx, Divisor xor edx, edx div ecx push eax ; save quotient on stack mov eax, dword ptr [Dividend] div ecx pop edx ; restore high-order dword of the quotient } }