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/** @file
Calculate the product of a 64-bit integer and another 64-bit integer
Copyright (c) 2006 - 2010, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
/**
Multiplies a 64-bit unsigned integer by a 64-bit unsigned integer
and generates a 64-bit unsigned result.
This function multiplies the 64-bit unsigned value Multiplicand by the 64-bit
unsigned value Multiplier and generates a 64-bit unsigned result. This 64-
bit unsigned result is returned.
@param Multiplicand A 64-bit unsigned value.
@param Multiplier A 64-bit unsigned value.
@return Multiplicand * Multiplier
**/
UINT64
EFIAPI
InternalMathMultU64x64 (
IN UINT64 Multiplicand,
IN UINT64 Multiplier
)
{
_asm {
mov ebx, dword ptr [Multiplicand + 0]
mov edx, dword ptr [Multiplier + 0]
mov ecx, ebx
mov eax, edx
imul ebx, dword ptr [Multiplier + 4]
imul edx, dword ptr [Multiplicand + 4]
add ebx, edx
mul ecx
add edx, ebx
}
}
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