mirror of https://github.com/ArduPilot/ardupilot
92 lines
7.3 KiB
HTML
92 lines
7.3 KiB
HTML
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
|
|
<html xmlns="http://www.w3.org/1999/xhtml">
|
|
<head>
|
|
<meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/>
|
|
<title>ArduPilot Libraries: /home/jgoppert/Projects/ap/libraries/FastSerial/ntz.h Source File</title>
|
|
<link href="tabs.css" rel="stylesheet" type="text/css"/>
|
|
<link href="doxygen.css" rel="stylesheet" type="text/css"/>
|
|
</head>
|
|
<body>
|
|
<!-- Generated by Doxygen 1.7.1 -->
|
|
<div class="navigation" id="top">
|
|
<div class="tabs">
|
|
<ul class="tablist">
|
|
<li><a href="main.html"><span>Main Page</span></a></li>
|
|
<li><a href="namespaces.html"><span>Namespaces</span></a></li>
|
|
<li><a href="annotated.html"><span>Classes</span></a></li>
|
|
<li class="current"><a href="files.html"><span>Files</span></a></li>
|
|
</ul>
|
|
</div>
|
|
<div class="tabs2">
|
|
<ul class="tablist">
|
|
<li><a href="files.html"><span>File List</span></a></li>
|
|
<li><a href="globals.html"><span>File Members</span></a></li>
|
|
</ul>
|
|
</div>
|
|
<div class="header">
|
|
<div class="headertitle">
|
|
<h1>/home/jgoppert/Projects/ap/libraries/FastSerial/ntz.h</h1> </div>
|
|
</div>
|
|
<div class="contents">
|
|
<a href="ntz_8h.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/* Copyright (c) 2007, Dmitry Xmelkov</span>
|
|
<a name="l00002"></a>00002 <span class="comment"> All rights reserved.</span>
|
|
<a name="l00003"></a>00003 <span class="comment"></span>
|
|
<a name="l00004"></a>00004 <span class="comment"> Redistribution and use in source and binary forms, with or without</span>
|
|
<a name="l00005"></a>00005 <span class="comment"> modification, are permitted provided that the following conditions are met:</span>
|
|
<a name="l00006"></a>00006 <span class="comment"></span>
|
|
<a name="l00007"></a>00007 <span class="comment"> * Redistributions of source code must retain the above copyright</span>
|
|
<a name="l00008"></a>00008 <span class="comment"> notice, this list of conditions and the following disclaimer.</span>
|
|
<a name="l00009"></a>00009 <span class="comment"> * Redistributions in binary form must reproduce the above copyright</span>
|
|
<a name="l00010"></a>00010 <span class="comment"> notice, this list of conditions and the following disclaimer in</span>
|
|
<a name="l00011"></a>00011 <span class="comment"> the documentation and/or other materials provided with the</span>
|
|
<a name="l00012"></a>00012 <span class="comment"> distribution.</span>
|
|
<a name="l00013"></a>00013 <span class="comment"> * Neither the name of the copyright holders nor the names of</span>
|
|
<a name="l00014"></a>00014 <span class="comment"> contributors may be used to endorse or promote products derived</span>
|
|
<a name="l00015"></a>00015 <span class="comment"> from this software without specific prior written permission.</span>
|
|
<a name="l00016"></a>00016 <span class="comment"></span>
|
|
<a name="l00017"></a>00017 <span class="comment"> THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"</span>
|
|
<a name="l00018"></a>00018 <span class="comment"> AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE</span>
|
|
<a name="l00019"></a>00019 <span class="comment"> IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE</span>
|
|
<a name="l00020"></a>00020 <span class="comment"> ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE</span>
|
|
<a name="l00021"></a>00021 <span class="comment"> LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR</span>
|
|
<a name="l00022"></a>00022 <span class="comment"> CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF</span>
|
|
<a name="l00023"></a>00023 <span class="comment"> SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS</span>
|
|
<a name="l00024"></a>00024 <span class="comment"> INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN</span>
|
|
<a name="l00025"></a>00025 <span class="comment"> CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)</span>
|
|
<a name="l00026"></a>00026 <span class="comment"> ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE</span>
|
|
<a name="l00027"></a>00027 <span class="comment"> POSSIBILITY OF SUCH DAMAGE. */</span>
|
|
<a name="l00028"></a>00028
|
|
<a name="l00029"></a>00029 <span class="comment">/* $Id: ntz.h 1217 2007-02-18 13:18:05Z dmix $ */</span>
|
|
<a name="l00030"></a>00030
|
|
<a name="l00031"></a>00031 <span class="preprocessor">#ifndef _NTZ_H</span>
|
|
<a name="l00032"></a>00032 <span class="preprocessor"></span><span class="preprocessor">#define _NTZ_H</span>
|
|
<a name="l00033"></a>00033 <span class="preprocessor"></span>
|
|
<a name="l00034"></a>00034 <span class="comment">/* Number of Tail Zeros: ntz(x)= (ffs(x) ? ffs(x)-1 : 16)</span>
|
|
<a name="l00035"></a>00035 <span class="comment"> It works with all: cpp, gcc and gas expressions. */</span>
|
|
<a name="l00036"></a><a class="code" href="ntz_8h.html#a7498d7d85df9105a7ade7ee6abe30e4a">00036</a> <span class="preprocessor">#define ntz(x) \</span>
|
|
<a name="l00037"></a>00037 <span class="preprocessor"> ( (1 & (((x) & 1) == 0)) \</span>
|
|
<a name="l00038"></a>00038 <span class="preprocessor"> + (1 & (((x) & 3) == 0)) \</span>
|
|
<a name="l00039"></a>00039 <span class="preprocessor"> + (1 & (((x) & 7) == 0)) \</span>
|
|
<a name="l00040"></a>00040 <span class="preprocessor"> + (1 & (((x) & 017) == 0)) \</span>
|
|
<a name="l00041"></a>00041 <span class="preprocessor"> + (1 & (((x) & 037) == 0)) \</span>
|
|
<a name="l00042"></a>00042 <span class="preprocessor"> + (1 & (((x) & 077) == 0)) \</span>
|
|
<a name="l00043"></a>00043 <span class="preprocessor"> + (1 & (((x) & 0177) == 0)) \</span>
|
|
<a name="l00044"></a>00044 <span class="preprocessor"> + (1 & (((x) & 0377) == 0)) \</span>
|
|
<a name="l00045"></a>00045 <span class="preprocessor"> + (1 & (((x) & 0777) == 0)) \</span>
|
|
<a name="l00046"></a>00046 <span class="preprocessor"> + (1 & (((x) & 01777) == 0)) \</span>
|
|
<a name="l00047"></a>00047 <span class="preprocessor"> + (1 & (((x) & 03777) == 0)) \</span>
|
|
<a name="l00048"></a>00048 <span class="preprocessor"> + (1 & (((x) & 07777) == 0)) \</span>
|
|
<a name="l00049"></a>00049 <span class="preprocessor"> + (1 & (((x) & 017777) == 0)) \</span>
|
|
<a name="l00050"></a>00050 <span class="preprocessor"> + (1 & (((x) & 037777) == 0)) \</span>
|
|
<a name="l00051"></a>00051 <span class="preprocessor"> + (1 & (((x) & 077777) == 0)) \</span>
|
|
<a name="l00052"></a>00052 <span class="preprocessor"> + (1 & (((x) & 0177777) == 0)) )</span>
|
|
<a name="l00053"></a>00053 <span class="preprocessor"></span>
|
|
<a name="l00054"></a>00054 <span class="preprocessor">#endif </span><span class="comment">/* !_NTZ_H */</span>
|
|
</pre></div></div>
|
|
</div>
|
|
<hr class="footer"/><address class="footer"><small>Generated on Sun Dec 26 2010 19:58:34 for ArduPilot Libraries by
|
|
<a href="http://www.doxygen.org/index.html">
|
|
<img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.7.1 </small></address>
|
|
</body>
|
|
</html>
|