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; --- 76 unchanged lines hidden (view full) --- 85#if defined(linux) 86 return bswap_16(x); 87#else 88 return (uint16_t)(((uint16_t)(x) & 0xff) << 8 | 89 ((uint16_t)(x) & 0xff00) >> 8); 90#endif 91} 92 |
93// This function lets the compiler figure out how to call the 94// swap_byte functions above for different data types. Since the 95// sizeof() values are known at compiel time, it should inline to a 96// direct call to the right swap_byteNN() function. 97template <typename T> 98static inline T swap_byte(T x) { 99 if (sizeof(T) == 8) 100 return swap_byte64((uint64_t)x); 101 else if (sizeof(T) == 4) 102 return swap_byte32((uint32_t)x); 103 else if (sizeof(T) == 2) 104 return swap_byte16((uint16_t)x); 105 else if (sizeof(T) == 1) 106 return x; 107 else 108 panic("Can't byte-swap values larger than 64 bits"); 109} |
110 111//The conversion functions with fixed endianness on both ends don't need to 112//be in a namespace 113template <typename T> static inline T betole(T value) {return swap_byte(value);} 114template <typename T> static inline T letobe(T value) {return swap_byte(value);} 115 116//For conversions not involving the guest system, we can define the functions 117//conditionally based on the BYTE_ORDER macro and outside of the namespaces --- 46 unchanged lines hidden --- |