74 lines
2.3 KiB
C
74 lines
2.3 KiB
C
/* $NetBSD: endian_machdep.h,v 1.3 2013/05/23 21:39:49 christos Exp $ */
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/*-
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* Copyright (c) 2013 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _BYTE_ORDER
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# error Define MIPS target CPU endian-ness in port-specific header file.
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#endif
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#ifdef _LOCORE
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/*
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* Endian-independent assembly-code aliases for unaligned memory accesses.
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*/
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#if _BYTE_ORDER == _LITTLE_ENDIAN
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# define LWHI lwr
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# define LWLO lwl
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# define SWHI swr
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# define SWLO swl
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# if SZREG == 4
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# define REG_LHI lwr
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# define REG_LLO lwl
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# define REG_SHI swr
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# define REG_SLO swl
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# else
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# define REG_LHI ldr
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# define REG_LLO ldl
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# define REG_SHI sdr
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# define REG_SLO sdl
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# endif
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#endif
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#if _BYTE_ORDER == _BIG_ENDIAN
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# define LWHI lwl
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# define LWLO lwr
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# define SWHI swl
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# define SWLO swr
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# if SZREG == 4
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# define REG_LHI lwl
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# define REG_LLO lwr
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# define REG_SHI swl
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# define REG_SLO swr
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# else
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# define REG_LHI ldl
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# define REG_LLO ldr
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# define REG_SHI sdl
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# define REG_SLO sdr
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# endif
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#endif
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#endif /* LOCORE */
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