SoftwareDesign
/
csu3_am335x


			
							123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201
							<?xml version='1.0' encoding='iso-8859-1'?>
<!doctype html public '-//W3C//DTD XHTML 1.0 Strict//EN' 'http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd'>
<html xmlns='http://www.w3c.org/1999/xhtml' lang='en-us'>
	<head>
		<title>
			endian.h
			</title>
		<meta http-equiv='content-type' content='text/html;iso-8859-1'/>
		<meta name='generator' content='motley-tools 1.9.4 13:40:33 Feb 18 2015'/>
		<meta name='author' content='cmaier@cmassoc.net'/>
		<meta name='robots' content='noindex,nofollow'/>
		<link href='toolkit.css' rel='stylesheet' type='text/css'/>
		</head>
	<body>
		<div class='headerlink'>
			[<a href='debug.h.html' title=' debug.h '>PREV</a>]
			[<a href='toolkit.html' title=' Index '>HOME</a>]
			[<a href='error.h.html' title=' error.h '>NEXT</a>]
			</div>
<pre>
/*====================================================================*
 *
 *   endian.h - integer byte order declarations and definitions;
 *
 *   this header is included to support recent moves to expand and
 *   standardize endian conversion functions on Linux, FreeBSD and
 *   NetBSD; Linux has implemented the following functions but OSX
 *   and Microsoft have not yet done so;
 *
 *   These functions are similar to network byteorder functions.
 *   For example, be32toh() is identical to ntohl().
 *
 *   #define _BSD_SOURCE
 *   #include &lt;endian.h&gt;
 *
 *   uint16_t htobe16(uint16_t x);
 *   uint16_t htole16(uint16_t x);
 *   uint16_t be16toh(uint16_t x);
 *   uint16_t le16toh(uint16_t x);
 *
 *   uint32_t htobe32(uint32_t x);
 *   uint32_t htole32(uint32_t x);
 *   uint32_t be32toh(uint32_t x);
 *   uint32_t le32toh(uint32_t x);
 *
 *   uint64_t htobe64(uint64_t x);
 *   uint64_t htole64(uint64_t x);
 *   uint64_t be64toh(uint64_t x);
 *   uint64_t le64toh(uint64_t x);
 *
 *   The advantage of network byteorder functions is that they are
 *   available on all Unix systems but they were meant for network
 *   applications and lack little-endian and 64-bit variants;
 *
 *   Motley Tools by Charles Maier &lt;cmaier@cmassoc.net&gt;;
 *   Copyright 2001-2006 by Charles Maier Associates;
 *   Licensed under the Internet Software Consortium License;
 *
 *--------------------------------------------------------------------*/

#ifndef ENDIAN_HEADER
#define ENDIAN_HEADER

/*====================================================================*
 *   system header files;
 *--------------------------------------------------------------------*/

#include &lt;unistd.h&gt;

#if defined (__linux__)
#       include &lt;endian.h&gt;
#       include &lt;byteswap.h&gt;
#elif defined (__APPLE__)
#       include &lt;netinet/in.h&gt;
#       include &lt;libkern/OSByteOrder.h&gt;
#elif defined (__OpenBSD__)
#       include &lt;sys/types.h&gt;
#elif defined (WIN32)
#       include &lt;stdint.h&gt;
#       define BYTE_ORDER LITTLE_ENDIAN
#elif defined (__vxworks)
#       include &lt;netinet/in.h&gt;
#elif defined (__CYGWIN__)
#	error &quot;Cygwin is unsupported&quot;
#else
#	error &quot;Unknown environment&quot;
#endif

/*====================================================================*
 *   definitions;
 *--------------------------------------------------------------------*/

#if defined (BYTE_ORDER)
#       if BYTE_ORDER == LITTLE_ENDIAN
#               define BE16TOH(x) __bswap_16(x)
#               define BE32TOH(x) __bswap_32(x)
#               define BE64TOH(x) __bswap_64(x)
#               define HTOBE16(x) __bswap_16(x)
#               define HTOBE32(x) __bswap_32(x)
#               define HTOBE64(x) __bswap_64(x)
#               define LE16TOH(x) (x)
#               define LE32TOH(x) (x)
#               define LE64TOH(x) (x)
#               define HTOLE16(x) (x)
#               define HTOLE32(x) (x)
#               define HTOLE64(x) (x)
#       elif BYTE_ORDER == BIG_ENDIAN
#               define BE16TOH(x) (x)
#               define BE32TOH(x) (x)
#               define BE64TOH(x) (x)
#               define HTOBE16(x) (x)
#               define HTOBE32(x) (x)
#               define HTOBE64(x) (x)
#               define LE16TOH(x) __bswap_16(x)
#               define LE32TOH(x) __bswap_32(x)
#               define LE64TOH(x) __bswap_64(x)
#               define HTOLE16(x) __bswap_16(x)
#               define HTOLE32(x) __bswap_32(x)
#               define HTOLE64(x) __bswap_64(x)
#       else
#               error &quot;Undefined host byte order (2).&quot;
#       endif
#elif defined (__vxworks) &amp;&amp; defined (_BYTE_ORDER)
#       if _BYTE_ORDER == _LITTLE_ENDIAN
#               define BE16TOH(x) __bswap_16(x)
#               define BE32TOH(x) __bswap_32(x)
#               define BE64TOH(x) __bswap_64(x)
#               define HTOBE16(x) __bswap_16(x)
#               define HTOBE32(x) __bswap_32(x)
#               define HTOBE64(x) __bswap_64(x)
#               define LE16TOH(x) (x)
#               define LE32TOH(x) (x)
#               define LE64TOH(x) (x)
#               define HTOLE16(x) (x)
#               define HTOLE32(x) (x)
#               define HTOLE64(x) (x)
#       elif _BYTE_ORDER == _BIG_ENDIAN
#               define __bswap_32(x)    ((((x) &amp; 0x000000ff) &lt;&lt; 24) | (((x) &amp; 0x0000ff00) &lt;&lt;  8) | (((x) &amp; 0x00ff0000) &gt;&gt;  8) | (((x) &amp; 0xff000000) &gt;&gt; 24))
#               define __bswap_16(x)    ((((x) &amp; 0x00ff) &lt;&lt; 8) | (((x) &amp; 0xff00) &gt;&gt; 8))
#               define BE16TOH(x) (x)
#               define BE32TOH(x) (x)
#               define BE64TOH(x) (x)
#               define HTOBE16(x) (x)
#               define HTOBE32(x) (x)
#               define HTOBE64(x) (x)
#               define LE16TOH(x) __bswap_16(x)
#               define LE32TOH(x) __bswap_32(x)
#               define LE64TOH(x) __bswap_64(x)
#               define HTOLE16(x) __bswap_16(x)
#               define HTOLE32(x) __bswap_32(x)
#               define HTOLE64(x) __bswap_64(x)
#       else
#               error &quot;Undefined host byte order vxworks.&quot;
#       endif
#else
#error &quot;Undefined host byte order (1).&quot;
#endif

/*====================================================================*
 *   endian conversion functions;
 *--------------------------------------------------------------------*/

#if defined (WIN32)

uint16_t __bswap_16 (uint16_t x);
uint32_t __bswap_32 (uint32_t x);
uint64_t __bswap_64 (uint64_t x);

#elif defined (__OpenBSD__)

#define __bswap_16(x) swap16(x)
#define __bswap_32(x) swap32(x)
#define __bswap_64(x) swap64(x)

#elif defined (__APPLE__)

#define __bswap_16(x) OSSwapInt16(x)
#define __bswap_32(x) OSSwapInt32(x)
#define __bswap_64(x) OSSwapInt64(x)

#elif defined (__linux__)

#else
#error &quot;Unknown Environment&quot;
#endif

/*====================================================================*
 *
 *--------------------------------------------------------------------*/

#endif


</pre>
		<div class='footerlink'>
			[<a href='debug.h.html' title=' debug.h '>PREV</a>]
			[<a href='toolkit.html' title=' Index '>HOME</a>]
			[<a href='error.h.html' title=' error.h '>NEXT</a>]
			</div>
		</body>
	</html>