/* IBM_PROLOG_BEGIN_TAG                                                   */
/* This is an automatically generated prolog.                             */
/*                                                                        */
/* $Source: src/include/endian.h $                                        */
/*                                                                        */
/* OpenPOWER HostBoot Project                                             */
/*                                                                        */
/* COPYRIGHT International Business Machines Corp. 2010,2014              */
/*                                                                        */
/* Licensed under the Apache License, Version 2.0 (the "License");        */
/* you may not use this file except in compliance with the License.       */
/* You may obtain a copy of the License at                                */
/*                                                                        */
/*     http://www.apache.org/licenses/LICENSE-2.0                         */
/*                                                                        */
/* Unless required by applicable law or agreed to in writing, software    */
/* distributed under the License is distributed on an "AS IS" BASIS,      */
/* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or        */
/* implied. See the License for the specific language governing           */
/* permissions and limitations under the License.                         */
/*                                                                        */
/* IBM_PROLOG_END_TAG                                                     */
#ifndef __ENDIAN_H
#define __ENDIAN_H

#define __LITTLE_ENDIAN (1234)
#define __BIG_ENDIAN    (4321)

#define __BYTE_ORDER __BIG_ENDIAN

#define __swap16(x) \
    ((((x) & 0xFF00) >> 8) | \
     (((x) & 0x00FF) << 8))

#if __BYTE_ORDER == __BIG_ENDIAN
// Big Endian system
#define htobe16(x) (x)
#define htole16(x) __swap16(x)
#define be16toh(x) (x)
#define le16toh(x) __swap16(x)

#define htobe32(x) (x)
#define htole32(x) __builtin_bswap32(x)
#define be32toh(x) (x)
#define le32toh(x) __builtin_bswap32(x)

#define htobe64(x) (x)
#define htole64(x) __builtin_bswap64(x)
#define be64toh(x) (x)
#define le64toh(x) __builtin_bswap64(x)
#else
// Little Endian system
#define htobe16(x) __swap16(x)
#define htole16(x) (x)
#define be16toh(x) __swap16(x)
#define le16toh(x) (x)

#define htobe32(x) __builtin_bswap32(x)
#define htole32(x) (x)
#define be32toh(x) __builtin_bswap32(x)
#define le32toh(x) (x)

#define htobe64(x) __builtin_bswap64(x)
#define htole64(x) (x)
#define be64toh(x) __builtin_bswap64(x)
#define le64toh(x) (x)
#endif

#endif