/*      $NetBSD: endian_machdep.h,v 1.3 2013/05/23 21:39:49 christos Exp $      */

/*-
* Copyright (c) 2013 The NetBSD Foundation, Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
*    notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
*    notice, this list of conditions and the following disclaimer in the
*    documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _BYTE_ORDER
# error  Define MIPS target CPU endian-ness in port-specific header file.
#endif

#ifdef _LOCORE

/*
*   Endian-independent assembly-code aliases for unaligned memory accesses.
*/
#if _BYTE_ORDER == _LITTLE_ENDIAN
# define LWHI lwr
# define LWLO lwl
# define SWHI swr
# define SWLO swl
# if SZREG == 4
#  define REG_LHI   lwr
#  define REG_LLO   lwl
#  define REG_SHI   swr
#  define REG_SLO   swl
# else
#  define REG_LHI   ldr
#  define REG_LLO   ldl
#  define REG_SHI   sdr
#  define REG_SLO   sdl
# endif
#endif

#if _BYTE_ORDER == _BIG_ENDIAN
# define LWHI lwl
# define LWLO lwr
# define SWHI swl
# define SWLO swr
# if SZREG == 4
#  define REG_LHI   lwl
#  define REG_LLO   lwr
#  define REG_SHI   swl
#  define REG_SLO   swr
# else
#  define REG_LHI   ldl
#  define REG_LLO   ldr
#  define REG_SHI   sdl
#  define REG_SLO   sdr
# endif
#endif

#endif /* LOCORE */