sysapi/sysapi_util/changeEndian.c

//**********************************************************************;
// Copyright (c) 2015, Intel Corporation
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
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// 1. Redistributions of source code must retain the above copyright notice,
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// 2. Redistributions in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
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// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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#include "sapi/tpm20.h"
#include "sysapi_util.h"

UINT64 ChangeEndianQword( UINT64 p )
{
    return( ((const UINT64)(((p)& 0xFF) << 56))    | \
          ((const UINT64)(((p)& 0xFF00) << 40))   | \
          ((const UINT64)(((p)& 0xFF0000) << 24)) | \
          ((const UINT64)(((p)& 0xFF000000) << 8)) | \
          ((const UINT64)(((p)& 0xFF00000000) >> 8)) | \
          ((const UINT64)(((p)& 0xFF0000000000) >> 24)) | \
          ((const UINT64)(((p)& 0xFF000000000000) >> 40)) | \
          ((const UINT64)(((p)& 0xFF00000000000000) >> 56)) );
}

UINT32 ChangeEndianDword( UINT32 p )
{
    return( ((const UINT32)(((p)& 0xFF) << 24))    | \
          ((const UINT32)(((p)& 0xFF00) << 8))   | \
          ((const UINT32)(((p)& 0xFF0000) >> 8)) | \
          ((const UINT32)(((p)& 0xFF000000) >> 24)));
}

UINT16 ChangeEndianWord( UINT16 p )
{
    return( ((const UINT16)(((p)& 0xFF) << 8)) | ((const UINT16)(((p)& 0xFF00) >> 8)));
}