/*	$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 */
