/** @file Calculate the quotient of a 64-bit integer by a 32-bit integer Copyright (c) 2006 - 2010, Intel Corporation. All rights reserved.
SPDX-License-Identifier: BSD-2-Clause-Patent **/ /** 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 } }