1/* 2 * Copyright (c) 2004 The Regents of The University of Michigan 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions are 7 * met: redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer; --- 43 unchanged lines hidden (view full) --- 52#else 53#include <machine/endian.h> 54#endif 55 56#if defined(__APPLE__) 57#include <libkern/OSByteOrder.h> 58#endif 59 |
60enum ByteOrder {BigEndianByteOrder, LittleEndianByteOrder}; 61 |
62//These functions actually perform the swapping for parameters 63//of various bit lengths 64static inline uint64_t 65swap_byte64(uint64_t x) 66{ 67#if defined(linux) 68 return bswap_64(x); 69#elif defined(__APPLE__) --- 58 unchanged lines hidden (view full) --- 128//The conversion functions with fixed endianness on both ends don't need to 129//be in a namespace 130template <typename T> static inline T betole(T value) {return swap_byte(value);} 131template <typename T> static inline T letobe(T value) {return swap_byte(value);} 132 133//For conversions not involving the guest system, we can define the functions 134//conditionally based on the BYTE_ORDER macro and outside of the namespaces 135#if defined(_BIG_ENDIAN) || BYTE_ORDER == BIG_ENDIAN |
136const ByteOrder HostByteOrder = BigEndianByteOrder; |
137template <typename T> static inline T htole(T value) {return swap_byte(value);} 138template <typename T> static inline T letoh(T value) {return swap_byte(value);} 139template <typename T> static inline T htobe(T value) {return value;} 140template <typename T> static inline T betoh(T value) {return value;} 141#elif defined(_LITTLE_ENDIAN) || BYTE_ORDER == LITTLE_ENDIAN |
142const ByteOrder HostByteOrder = LittleEndianByteOrder; |
143template <typename T> static inline T htole(T value) {return value;} 144template <typename T> static inline T letoh(T value) {return value;} 145template <typename T> static inline T htobe(T value) {return swap_byte(value);} 146template <typename T> static inline T betoh(T value) {return swap_byte(value);} 147#else 148 #error Invalid Endianess 149#endif 150 151namespace BigEndianGuest 152{ |
153 const bool ByteOrderDiffers = (HostByteOrder != BigEndianByteOrder); 154 template <typename T> 155 static inline T gtole(T value) {return betole(value);} 156 template <typename T> 157 static inline T letog(T value) {return letobe(value);} 158 template <typename T> 159 static inline T gtobe(T value) {return value;} 160 template <typename T> 161 static inline T betog(T value) {return value;} 162 template <typename T> 163 static inline T htog(T value) {return htobe(value);} 164 template <typename T> 165 static inline T gtoh(T value) {return betoh(value);} |
166} 167 168namespace LittleEndianGuest 169{ |
170 const bool ByteOrderDiffers = (HostByteOrder != LittleEndianByteOrder); 171 template <typename T> 172 static inline T gtole(T value) {return value;} 173 template <typename T> 174 static inline T letog(T value) {return value;} 175 template <typename T> 176 static inline T gtobe(T value) {return letobe(value);} 177 template <typename T> 178 static inline T betog(T value) {return betole(value);} 179 template <typename T> 180 static inline T htog(T value) {return htole(value);} 181 template <typename T> 182 static inline T gtoh(T value) {return letoh(value);} |
183} 184#endif // __SIM_BYTE_SWAP_HH__ |