Subversion Repositories openrisc_2011-10-31

/*  This file is part of the program psim.

    Copyright (C) 1994-1995, Andrew Cagney <cagney@highland.com.au>

    This program is free software; you can redistribute it and/or modify

    it under the terms of the GNU General Public License as published by

    the Free Software Foundation; either version 2 of the License, or

    (at your option) any later version.

    This program is distributed in the hope that it will be useful,

    but WITHOUT ANY WARRANTY; without even the implied warranty of

    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License

    along with this program; if not, write to the Free Software

    Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.

    */

#ifndef _SIM_ENDIAN_C_

#define _SIM_ENDIAN_C_

#include "config.h"

#include "basics.h"

#if !defined(_SWAP_1)

#define _SWAP_1(SET,RAW) SET (RAW)

#endif

#if !defined(_SWAP_2) && (WITH_HOST_BYTE_ORDER == LITTLE_ENDIAN) && defined(htons)

#define _SWAP_2(SET,RAW) SET htons (RAW)

#endif

#ifndef _SWAP_2

#define _SWAP_2(SET,RAW) SET (((RAW) >> 8) | ((RAW) << 8))

#endif

#if !defined(_SWAP_4) && (WITH_HOST_BYTE_ORDER == LITTLE_ENDIAN) && defined(htonl)

#define _SWAP_4(SET,RAW) SET htonl (RAW)

#endif

#ifndef _SWAP_4

#define _SWAP_4(SET,RAW) SET (((RAW) << 24) | (((RAW) & 0xff00) << 8) | (((RAW) & 0xff0000) >> 8) | ((RAW) >> 24))

#endif

#ifndef _SWAP_8

#define _SWAP_8(SET,RAW) \

  union { unsigned_8 dword; unsigned_4 words[2]; } in, out; \

  in.dword = RAW; \

  _SWAP_4 (out.words[0] =, in.words[1]); \

  _SWAP_4 (out.words[1] =, in.words[0]); \

  SET out.dword;

#endif

#define N 1

#include "sim-endian-n.h"

#undef N

#define N 2

#include "sim-endian-n.h"

#undef N

#define N 4

#include "sim-endian-n.h"

#undef N

#define N 8

#include "sim-endian-n.h"

#undef N

#endif /* _SIM_ENDIAN_C_ */