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/** @file
Implementation of 64-bit swap bytes
Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
/**
Switches the endianess of a 64-bit integer.
This function swaps the bytes in a 64-bit unsigned value to switch the value
from little endian to big endian or vice versa. The byte swapped value is
returned.
@param Operand A 64-bit unsigned value.
@return The byte swaped Operand.
**/
UINT64
EFIAPI
InternalMathSwapBytes64 (
IN UINT64 Operand
)
{
_asm {
mov eax, dword ptr [Operand + 4]
mov edx, dword ptr [Operand + 0]
bswap eax
bswap edx
}
}
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