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/** @file
Calculate the quotient of a 64-bit integer by a 32-bit integer
Copyright (c) 2006 - 2010, Intel Corporation. All rights reserved.<BR>
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
}
}
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