gphoto2-endian-ppc.h revision 3aa430dc5437a98734b36f996f9b17081a589143
1/* This file is generated automatically by configure */ 2/* It is valid only for the system type powerpc-apple-darwin9.8.0 */ 3 4#ifndef __BYTEORDER_H 5#define __BYTEORDER_H 6 7/* ntohl and relatives live here */ 8#include <arpa/inet.h> 9 10/* Define generic byte swapping functions */ 11#include <machine/byte_order.h> 12#define swap16(x) NXSwapShort(x) 13#define swap32(x) NXSwapLong(x) 14#define swap64(x) NXSwapLongLong(x) 15 16/* The byte swapping macros have the form: */ 17/* EENN[a]toh or htoEENN[a] where EE is be (big endian) or */ 18/* le (little-endian), NN is 16 or 32 (number of bits) and a, */ 19/* if present, indicates that the endian side is a pointer to an */ 20/* array of uint8_t bytes instead of an integer of the specified length. */ 21/* h refers to the host's ordering method. */ 22 23/* So, to convert a 32-bit integer stored in a buffer in little-endian */ 24/* format into a uint32_t usable on this machine, you could use: */ 25/* uint32_t value = le32atoh(&buf[3]); */ 26/* To put that value back into the buffer, you could use: */ 27/* htole32a(&buf[3], value); */ 28 29/* Define aliases for the standard byte swapping macros */ 30/* Arguments to these macros must be properly aligned on natural word */ 31/* boundaries in order to work properly on all architectures */ 32#ifndef htobe16 33# define htobe16(x) htons(x) 34#endif 35#ifndef htobe32 36# define htobe32(x) htonl(x) 37#endif 38#ifndef be16toh 39# define be16toh(x) ntohs(x) 40#endif 41#ifndef be32toh 42# define be32toh(x) ntohl(x) 43#endif 44 45#define HTOBE16(x) (x) = htobe16(x) 46#define HTOBE32(x) (x) = htobe32(x) 47#define BE32TOH(x) (x) = be32toh(x) 48#define BE16TOH(x) (x) = be16toh(x) 49 50/* Define our own extended byte swapping macros for big-endian machines */ 51#ifndef htole16 52# define htole16(x) swap16(x) 53#endif 54#ifndef htole32 55# define htole32(x) swap32(x) 56#endif 57#ifndef le16toh 58# define le16toh(x) swap16(x) 59#endif 60#ifndef le32toh 61# define le32toh(x) swap32(x) 62#endif 63#ifndef le64toh 64# define le64toh(x) swap64(x) 65#endif 66 67#ifndef htobe64 68# define htobe64(x) (x) 69#endif 70#ifndef be64toh 71# define be64toh(x) (x) 72#endif 73 74#define HTOLE16(x) (x) = htole16(x) 75#define HTOLE32(x) (x) = htole32(x) 76#define LE16TOH(x) (x) = le16toh(x) 77#define LE32TOH(x) (x) = le32toh(x) 78#define LE64TOH(x) (x) = le64toh(x) 79 80#define HTOBE64(x) (void) (x) 81#define BE64TOH(x) (void) (x) 82 83/* Define the C99 standard length-specific integer types */ 84#include <stdint.h> 85 86/* Here are some macros to create integers from a byte array */ 87/* These are used to get and put integers from/into a uint8_t array */ 88/* with a specific endianness. This is the most portable way to generate */ 89/* and read messages to a network or serial device. Each member of a */ 90/* packet structure must be handled separately. */ 91 92/* Non-optimized but portable macros */ 93#define be16atoh(x) ((uint16_t)(((x)[0]<<8)|(x)[1])) 94#define be32atoh(x) ((uint32_t)(((x)[0]<<24)|((x)[1]<<16)|((x)[2]<<8)|(x)[3])) 95#define be64atoh_x(x,off,shift) (((uint64_t)((x)[off]))<<shift) 96#define be64atoh(x) ((uint64_t)(be64atoh_x(x,0,56)|be64atoh_x(x,1,48)|be64atoh_x(x,2,40)| \ 97 be64atoh_x(x,3,32)|be64atoh_x(x,4,24)|be64atoh_x(x,5,16)|be64atoh_x(x,6,8)|((x)[7]))) 98#define le16atoh(x) ((uint16_t)(((x)[1]<<8)|(x)[0])) 99#define le32atoh(x) ((uint32_t)(((x)[3]<<24)|((x)[2]<<16)|((x)[1]<<8)|(x)[0])) 100#define le64atoh_x(x,off,shift) (((uint64_t)(x)[off])<<shift) 101#define le64atoh(x) ((uint64_t)(le64atoh_x(x,7,56)|le64atoh_x(x,6,48)|le64atoh_x(x,5,40)| \ 102 le64atoh_x(x,4,32)|le64atoh_x(x,3,24)|le64atoh_x(x,2,16)|le64atoh_x(x,1,8)|((x)[0]))) 103 104#define htobe16a(a,x) (a)[0]=(uint8_t)((x)>>8), (a)[1]=(uint8_t)(x) 105#define htobe32a(a,x) (a)[0]=(uint8_t)((x)>>24), (a)[1]=(uint8_t)((x)>>16), \ 106 (a)[2]=(uint8_t)((x)>>8), (a)[3]=(uint8_t)(x) 107#define htobe64a(a,x) (a)[0]=(uint8_t)((x)>>56), (a)[1]=(uint8_t)((x)>>48), \ 108 (a)[2]=(uint8_t)((x)>>40), (a)[3]=(uint8_t)((x)>>32), \ 109 (a)[4]=(uint8_t)((x)>>24), (a)[5]=(uint8_t)((x)>>16), \ 110 (a)[6]=(uint8_t)((x)>>8), (a)[7]=(uint8_t)(x) 111#define htole16a(a,x) (a)[1]=(uint8_t)((x)>>8), (a)[0]=(uint8_t)(x) 112#define htole32a(a,x) (a)[3]=(uint8_t)((x)>>24), (a)[2]=(uint8_t)((x)>>16), \ 113 (a)[1]=(uint8_t)((x)>>8), (a)[0]=(uint8_t)(x) 114#define htole64a(a,x) (a)[7]=(uint8_t)((x)>>56), (a)[6]=(uint8_t)((x)>>48), \ 115 (a)[5]=(uint8_t)((x)>>40), (a)[4]=(uint8_t)((x)>>32), \ 116 (a)[3]=(uint8_t)((x)>>24), (a)[2]=(uint8_t)((x)>>16), \ 117 (a)[1]=(uint8_t)((x)>>8), (a)[0]=(uint8_t)(x) 118 119#endif /*__BYTEORDER_H*/ 120