![]() The socket interface specifies a standard byte ordering called network-byte order, which happens to be Big-Endian. Table I: Windows Sockets Byte-Order Conversion Functions FunctionĬonvert a 16-bit quantity from network byte order to host byte order (Big-Endian to Little-Endian).Ĭonvert a 32-bit quantity from network byte order to host byte order (Big-Endian to Little-Endian).Ĭonvert a 16-bit quantity from host byte order to network byte order (Little-Endian to Big-Endian).Ĭonvert a 32-bit quantity from host byte order to network byte order (Little-Endian to Big-Endian). ![]() ![]() They store the data in 'network byte order' which is standard and endianness independent. The following example shows how an Endian conversion function could be implemented using simple C unions:Äouble* dArray // array in big-endian format int n // Number of elements for (register int i = 0 i the word UNIX stored in two 2-byte words. they are capable of operating in either Big-Endian or Little-Endian mode.Ä®ndianess is also referred to as the NUXI problem. Still, other architectures such as PowerPC, MIPS, and Intelâs 64 IA-64 are Bi-Endian, i.e. The Intel x86 family and Digital Equipment Corporation architectures (PDP-11, VAX, Alpha) are representatives of Little-Endian, while the Sun SPARC, IBM 360/370, and Motorola 6800 architectures are Big-Endians. Little-endian: Least significant byte is stored at the lowest byte address. ![]() Whereas architectures that follow the Little-Endian rules will store it as depicted in Figure 2:įigure 2. Big-Endian: The most significant byte is stored at the lowest byte address. ![]() Following the Big-Endian convention, a computer will store it as follows:įigure 1. Little-Endian means that the least significant byte of any multibyte data field is stored at the lowest memory address, which is also the address of the larger field.įor example, consider the 32-bit number, 0xDEADBEEF.Big-Endian means that the most significant byte of any multibyte data field is stored at the lowest memory address, which is also the address of the larger field.'Big-Endian' feud carried over into the world of computing as well, where it refers to the order in which bytes in multi-byte numbers should be stored, most-significant first (Big-Endian) or least-significant first (Little-Endian) to be more precise As the Emperor commanded all his subjects to break the smaller end, this resulted in a civil war with dramatic consequences: 11.000 people have, at several times, suffered death rather than submitting to breaking their eggs at the smaller end. A long time ago, in a very remote island known as Lilliput, society was split into two factions: Big-Endians who opened their soft-boiled eggs at the larger end ("the primitive way") and Little-Endians who broke their eggs at the smaller end. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |