endian_machdep.h revision 1.3
1 1.3 christos /* $NetBSD: endian_machdep.h,v 1.3 2013/05/23 21:39:49 christos Exp $ */ 2 1.1 mycroft 3 1.3 christos /*- 4 1.3 christos * Copyright (c) 2013 The NetBSD Foundation, Inc. 5 1.3 christos * All rights reserved. 6 1.3 christos * 7 1.3 christos * Redistribution and use in source and binary forms, with or without 8 1.3 christos * modification, are permitted provided that the following conditions 9 1.3 christos * are met: 10 1.3 christos * 1. Redistributions of source code must retain the above copyright 11 1.3 christos * notice, this list of conditions and the following disclaimer. 12 1.3 christos * 2. Redistributions in binary form must reproduce the above copyright 13 1.3 christos * notice, this list of conditions and the following disclaimer in the 14 1.3 christos * documentation and/or other materials provided with the distribution. 15 1.3 christos * 16 1.3 christos * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 17 1.3 christos * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 18 1.3 christos * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 19 1.3 christos * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 20 1.3 christos * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 21 1.3 christos * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 22 1.3 christos * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 23 1.3 christos * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 24 1.3 christos * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 25 1.3 christos * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 26 1.3 christos * POSSIBILITY OF SUCH DAMAGE. 27 1.3 christos */ 28 1.1 mycroft #ifndef _BYTE_ORDER 29 1.1 mycroft # error Define MIPS target CPU endian-ness in port-specific header file. 30 1.1 mycroft #endif 31 1.1 mycroft 32 1.1 mycroft #ifdef _LOCORE 33 1.1 mycroft 34 1.1 mycroft /* 35 1.1 mycroft * Endian-independent assembly-code aliases for unaligned memory accesses. 36 1.1 mycroft */ 37 1.1 mycroft #if _BYTE_ORDER == _LITTLE_ENDIAN 38 1.1 mycroft # define LWHI lwr 39 1.1 mycroft # define LWLO lwl 40 1.1 mycroft # define SWHI swr 41 1.1 mycroft # define SWLO swl 42 1.2 matt # if SZREG == 4 43 1.2 matt # define REG_LHI lwr 44 1.2 matt # define REG_LLO lwl 45 1.2 matt # define REG_SHI swr 46 1.2 matt # define REG_SLO swl 47 1.2 matt # else 48 1.2 matt # define REG_LHI ldr 49 1.2 matt # define REG_LLO ldl 50 1.2 matt # define REG_SHI sdr 51 1.2 matt # define REG_SLO sdl 52 1.2 matt # endif 53 1.1 mycroft #endif 54 1.1 mycroft 55 1.1 mycroft #if _BYTE_ORDER == _BIG_ENDIAN 56 1.1 mycroft # define LWHI lwl 57 1.1 mycroft # define LWLO lwr 58 1.1 mycroft # define SWHI swl 59 1.1 mycroft # define SWLO swr 60 1.2 matt # if SZREG == 4 61 1.2 matt # define REG_LHI lwl 62 1.2 matt # define REG_LLO lwr 63 1.2 matt # define REG_SHI swl 64 1.2 matt # define REG_SLO swr 65 1.2 matt # else 66 1.2 matt # define REG_LHI ldl 67 1.2 matt # define REG_LLO ldr 68 1.2 matt # define REG_SHI sdl 69 1.2 matt # define REG_SLO sdr 70 1.2 matt # endif 71 1.1 mycroft #endif 72 1.1 mycroft 73 1.1 mycroft #endif /* LOCORE */ 74
Indexes created Thu Sep 25 16:09:42 GMT 2025