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; --- 77 unchanged lines hidden (view full) --- 86#if defined(linux) 87 return bswap_16(x); 88#else 89 return (uint16_t)(((uint16_t)(x) & 0xff) << 8 | 90 ((uint16_t)(x) & 0xff00) >> 8); 91#endif 92} 93 |
94// This function lets the compiler figure out how to call the 95// swap_byte functions above for different data types. Since the 96// sizeof() values are known at compiel time, it should inline to a 97// direct call to the right swap_byteNN() function. 98template <typename T> 99static inline T swap_byte(T x) { 100 if (sizeof(T) == 8) 101 return swap_byte64((uint64_t)x); 102 else if (sizeof(T) == 4) 103 return swap_byte32((uint32_t)x); 104 else if (sizeof(T) == 2) 105 return swap_byte16((uint16_t)x); 106 else if (sizeof(T) == 1) 107 return x; 108 else 109 panic("Can't byte-swap values larger than 64 bits"); 110} |
111 112//The conversion functions with fixed endianness on both ends don't need to 113//be in a namespace 114template <typename T> static inline T betole(T value) {return swap_byte(value);} 115template <typename T> static inline T letobe(T value) {return swap_byte(value);} 116 117//For conversions not involving the guest system, we can define the functions 118//conditionally based on the BYTE_ORDER macro and outside of the namespaces --- 46 unchanged lines hidden --- |