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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html><head><meta http-equiv="Content-Type" content="text/html;charset=UTF-8"><title>Crypto++: cpu.h Source File</title><link href="doxygen.css" rel="stylesheet" type="text/css"><link href="tabs.css" rel="stylesheet" type="text/css"></head><body><!-- Generated by Doxygen 1.5.2 --><div class="tabs">  <ul>    <li><a href="index.html"><span>Main&nbsp;Page</span></a></li>    <li><a href="namespaces.html"><span>Namespaces</span></a></li>    <li><a href="classes.html"><span>Classes</span></a></li>    <li class="current"><a href="files.html"><span>Files</span></a></li>  </ul></div><div class="tabs">  <ul>    <li><a href="files.html"><span>File&nbsp;List</span></a></li>    <li><a href="globals.html"><span>File&nbsp;Members</span></a></li>  </ul></div><h1>cpu.h</h1><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="preprocessor">#ifndef CRYPTOPP_CPU_H</span><a name="l00002"></a>00002 <span class="preprocessor"></span><span class="preprocessor">#define CRYPTOPP_CPU_H</span><a name="l00003"></a>00003 <span class="preprocessor"></span><a name="l00004"></a>00004 <span class="preprocessor">#include "config.h"</span><a name="l00005"></a>00005 <a name="l00006"></a>00006 <span class="preprocessor">#ifdef CRYPTOPP_MSVC6PP_OR_LATER</span><a name="l00007"></a>00007 <span class="preprocessor"></span><span class="preprocessor">        #include &lt;emmintrin.h&gt;</span><a name="l00008"></a>00008 <span class="preprocessor">#endif</span><a name="l00009"></a>00009 <span class="preprocessor"></span><a name="l00010"></a>00010 NAMESPACE_BEGIN(CryptoPP)<a name="l00011"></a>00011 <a name="l00012"></a>00012 <span class="preprocessor">#if defined(CRYPTOPP_X86_ASM_AVAILABLE) || (_MSC_VER &gt;= 1400 &amp;&amp; CRYPTOPP_BOOL_X64)</span><a name="l00013"></a>00013 <span class="preprocessor"></span><a name="l00014"></a>00014 <span class="preprocessor">#define CRYPTOPP_CPUID_AVAILABLE</span><a name="l00015"></a>00015 <span class="preprocessor"></span><a name="l00016"></a>00016 <span class="comment">// these should not be used directly</span><a name="l00017"></a>00017 <span class="keyword">extern</span> CRYPTOPP_DLL <span class="keywordtype">bool</span> g_x86DetectionDone;<a name="l00018"></a>00018 <span class="keyword">extern</span> CRYPTOPP_DLL <span class="keywordtype">bool</span> g_hasSSE2;<a name="l00019"></a>00019 <span class="keyword">extern</span> CRYPTOPP_DLL <span class="keywordtype">bool</span> g_hasMMX;<a name="l00020"></a>00020 <span class="keyword">extern</span> CRYPTOPP_DLL <span class="keywordtype">bool</span> g_hasSSSE3;<a name="l00021"></a>00021 <span class="keyword">extern</span> CRYPTOPP_DLL <span class="keywordtype">bool</span> g_isP4;<a name="l00022"></a>00022 <span class="keyword">extern</span> CRYPTOPP_DLL word32 g_cacheLineSize;<a name="l00023"></a>00023 CRYPTOPP_DLL <span class="keywordtype">void</span> DetectX86Features();<a name="l00024"></a>00024 <a name="l00025"></a>00025 CRYPTOPP_DLL <span class="keywordtype">bool</span> CpuId(word32 input, word32 *output);<a name="l00026"></a>00026 <a name="l00027"></a>00027 <span class="preprocessor">#if CRYPTOPP_BOOL_X64</span><a name="l00028"></a>00028 <span class="preprocessor"></span><span class="keyword">inline</span> <span class="keywordtype">bool</span> HasSSE2()   {<span class="keywordflow">return</span> <span class="keyword">true</span>;}<a name="l00029"></a>00029 <span class="keyword">inline</span> <span class="keywordtype">bool</span> HasMMX()    {<span class="keywordflow">return</span> <span class="keyword">true</span>;}<a name="l00030"></a>00030 <span class="preprocessor">#else</span><a name="l00031"></a>00031 <span class="preprocessor"></span><a name="l00032"></a>00032 <span class="keyword">inline</span> <span class="keywordtype">bool</span> HasSSE2()<a name="l00033"></a>00033 {<a name="l00034"></a>00034         <span class="keywordflow">if</span> (!g_x86DetectionDone)<a name="l00035"></a>00035                 DetectX86Features();<a name="l00036"></a>00036         <span class="keywordflow">return</span> g_hasSSE2;<a name="l00037"></a>00037 }<a name="l00038"></a>00038 <a name="l00039"></a>00039 <span class="keyword">inline</span> <span class="keywordtype">bool</span> HasMMX()<a name="l00040"></a>00040 {<a name="l00041"></a>00041         <span class="keywordflow">if</span> (!g_x86DetectionDone)<a name="l00042"></a>00042                 DetectX86Features();<a name="l00043"></a>00043         <span class="keywordflow">return</span> g_hasMMX;<a name="l00044"></a>00044 }<a name="l00045"></a>00045 <a name="l00046"></a>00046 <span class="preprocessor">#endif</span><a name="l00047"></a>00047 <span class="preprocessor"></span><a name="l00048"></a>00048 <span class="keyword">inline</span> <span class="keywordtype">bool</span> HasSSSE3()<a name="l00049"></a>00049 {<a name="l00050"></a>00050         <span class="keywordflow">if</span> (!g_x86DetectionDone)<a name="l00051"></a>00051                 DetectX86Features();<a name="l00052"></a>00052         <span class="keywordflow">return</span> g_hasSSSE3;<a name="l00053"></a>00053 }<a name="l00054"></a>00054 <a name="l00055"></a>00055 <span class="keyword">inline</span> <span class="keywordtype">bool</span> IsP4()<a name="l00056"></a>00056 {<a name="l00057"></a>00057         <span class="keywordflow">if</span> (!g_x86DetectionDone)<a name="l00058"></a>00058                 DetectX86Features();<a name="l00059"></a>00059         <span class="keywordflow">return</span> g_isP4;<a name="l00060"></a>00060 }<a name="l00061"></a>00061 <a name="l00062"></a>00062 <span class="keyword">inline</span> <span class="keywordtype">int</span> GetCacheLineSize()<a name="l00063"></a>00063 {<a name="l00064"></a>00064         <span class="keywordflow">if</span> (!g_x86DetectionDone)<a name="l00065"></a>00065                 DetectX86Features();<a name="l00066"></a>00066         <span class="keywordflow">return</span> g_cacheLineSize;<a name="l00067"></a>00067 }<a name="l00068"></a>00068 <a name="l00069"></a>00069 <span class="preprocessor">#else</span><a name="l00070"></a>00070 <span class="preprocessor"></span><a name="l00071"></a>00071 <span class="keyword">inline</span> <span class="keywordtype">int</span> GetCacheLineSize()<a name="l00072"></a>00072 {<a name="l00073"></a>00073         <span class="keywordflow">return</span> CRYPTOPP_L1_CACHE_LINE_SIZE;<a name="l00074"></a>00074 }<a name="l00075"></a>00075 <a name="l00076"></a>00076 <span class="keyword">inline</span> <span class="keywordtype">bool</span> HasSSSE3()  {<span class="keywordflow">return</span> <span class="keyword">false</span>;}<a name="l00077"></a>00077 <span class="keyword">inline</span> <span class="keywordtype">bool</span> IsP4()              {<span class="keywordflow">return</span> <span class="keyword">false</span>;}<a name="l00078"></a>00078 <a name="l00079"></a>00079 <span class="comment">// assume MMX and SSE2 if intrinsics are enabled</span><a name="l00080"></a>00080 <span class="preprocessor">#if CRYPTOPP_BOOL_SSE2_INTRINSICS_AVAILABLE || CRYPTOPP_BOOL_X64</span><a name="l00081"></a>00081 <span class="preprocessor"></span><span class="keyword">inline</span> <span class="keywordtype">bool</span> HasSSE2()   {<span class="keywordflow">return</span> <span class="keyword">true</span>;}<a name="l00082"></a>00082 <span class="keyword">inline</span> <span class="keywordtype">bool</span> HasMMX()    {<span class="keywordflow">return</span> <span class="keyword">true</span>;}<a name="l00083"></a>00083 <span class="preprocessor">#else</span><a name="l00084"></a>00084 <span class="preprocessor"></span><span class="keyword">inline</span> <span class="keywordtype">bool</span> HasSSE2()   {<span class="keywordflow">return</span> <span class="keyword">false</span>;}<a name="l00085"></a>00085 <span class="keyword">inline</span> <span class="keywordtype">bool</span> HasMMX()    {<span class="keywordflow">return</span> <span class="keyword">false</span>;}<a name="l00086"></a>00086 <span class="preprocessor">#endif</span><a name="l00087"></a>00087 <span class="preprocessor"></span><a name="l00088"></a>00088 <span class="preprocessor">#endif          // #ifdef CRYPTOPP_X86_ASM_AVAILABLE || _MSC_VER &gt;= 1400</span><a name="l00089"></a>00089 <span class="preprocessor"></span><a name="l00090"></a>00090 <span class="preprocessor">#if defined(__GNUC__)</span><a name="l00091"></a>00091 <span class="preprocessor"></span>        <span class="comment">// define these in two steps to allow arguments to be expanded</span><a name="l00092"></a>00092 <span class="preprocessor">        #define GNU_AS1(x) #x ";"</span><a name="l00093"></a>00093 <span class="preprocessor"></span><span class="preprocessor">        #define GNU_AS2(x, y) #x ", " #y ";"</span><a name="l00094"></a>00094 <span class="preprocessor"></span><span class="preprocessor">        #define GNU_AS3(x, y, z) #x ", " #y ", " #z ";"</span><a name="l00095"></a>00095 <span class="preprocessor"></span><span class="preprocessor">        #define GNU_ASL(x) "\n" #x ":"</span><a name="l00096"></a>00096 <span class="preprocessor"></span><span class="preprocessor">        #define GNU_ASJ(x, y, z) #x " " #y #z ";"</span><a name="l00097"></a>00097 <span class="preprocessor"></span><span class="preprocessor">        #define AS1(x) GNU_AS1(x)</span><a name="l00098"></a>00098 <span class="preprocessor"></span><span class="preprocessor">        #define AS2(x, y) GNU_AS2(x, y)</span><a name="l00099"></a>00099 <span class="preprocessor"></span><span class="preprocessor">        #define AS3(x, y, z) GNU_AS3(x, y, z)</span><a name="l00100"></a>00100 <span class="preprocessor"></span><span class="preprocessor">        #define ASS(x, y, a, b, c, d) #x ", " #y ", " #a "*64+" #b "*16+" #c "*4+" #d ";"</span><a name="l00101"></a>00101 <span class="preprocessor"></span><span class="preprocessor">        #define ASL(x) GNU_ASL(x)</span><a name="l00102"></a>00102 <span class="preprocessor"></span><span class="preprocessor">        #define ASJ(x, y, z) GNU_ASJ(x, y, z)</span><a name="l00103"></a>00103 <span class="preprocessor"></span><span class="preprocessor">        #define ASC(x, y) #x " " #y ";"</span><a name="l00104"></a>00104 <span class="preprocessor"></span><span class="preprocessor">        #define CRYPTOPP_NAKED</span><a name="l00105"></a>00105 <span class="preprocessor"></span><span class="preprocessor">#else</span><a name="l00106"></a>00106 <span class="preprocessor"></span><span class="preprocessor">        #define AS1(x) __asm {x}</span><a name="l00107"></a>00107 <span class="preprocessor"></span><span class="preprocessor">        #define AS2(x, y) __asm {x, y}</span><a name="l00108"></a>00108 <span class="preprocessor"></span><span class="preprocessor">        #define AS3(x, y, z) __asm {x, y, z}</span><a name="l00109"></a>00109 <span class="preprocessor"></span><span class="preprocessor">        #define ASS(x, y, a, b, c, d) __asm {x, y, _MM_SHUFFLE(a, b, c, d)}</span><a name="l00110"></a>00110 <span class="preprocessor"></span><span class="preprocessor">        #define ASL(x) __asm {label##x:}</span><a name="l00111"></a>00111 <span class="preprocessor"></span><span class="preprocessor">        #define ASJ(x, y, z) __asm {x label##y}</span><a name="l00112"></a>00112 <span class="preprocessor"></span><span class="preprocessor">        #define ASC(x, y) __asm {x label##y}</span><a name="l00113"></a>00113 <span class="preprocessor"></span><span class="preprocessor">        #define CRYPTOPP_NAKED __declspec(naked)</span><a name="l00114"></a>00114 <span class="preprocessor"></span><span class="preprocessor">#endif</span><a name="l00115"></a>00115 <span class="preprocessor"></span><a name="l00116"></a>00116 <span class="comment">// GNU assembler doesn't seem to have mod operator</span><a name="l00117"></a>00117 <span class="preprocessor">#define ASM_MOD(x, y) ((x)-((x)/(y))*(y))</span><a name="l00118"></a>00118 <span class="preprocessor"></span><a name="l00119"></a>00119 <span class="preprocessor">#if CRYPTOPP_BOOL_X86</span><a name="l00120"></a>00120 <span class="preprocessor"></span><span class="preprocessor">        #define WORD_SZ 4</span><a name="l00121"></a>00121 <span class="preprocessor"></span><span class="preprocessor">        #define WORD_REG(x)     e##x</span><a name="l00122"></a>00122 <span class="preprocessor"></span><span class="preprocessor">        #define WORD_PTR DWORD PTR</span><a name="l00123"></a>00123 <span class="preprocessor"></span><span class="preprocessor">        #define AS_PUSH(x) AS1(push e##x)</span><a name="l00124"></a>00124 <span class="preprocessor"></span><span class="preprocessor">        #define AS_POP(x) AS1(pop e##x)</span><a name="l00125"></a>00125 <span class="preprocessor"></span><span class="preprocessor">#elif CRYPTOPP_BOOL_X64</span><a name="l00126"></a>00126 <span class="preprocessor"></span><span class="preprocessor">        #define WORD_SZ 8</span><a name="l00127"></a>00127 <span class="preprocessor"></span><span class="preprocessor">        #define WORD_REG(x)     r##x</span><a name="l00128"></a>00128 <span class="preprocessor"></span><span class="preprocessor">        #define WORD_PTR QWORD PTR</span><a name="l00129"></a>00129 <span class="preprocessor"></span><span class="preprocessor">        #define AS_PUSH(x) AS1(pushq r##x)</span><a name="l00130"></a>00130 <span class="preprocessor"></span><span class="preprocessor">        #define AS_POP(x) AS1(popq r##x)</span><a name="l00131"></a>00131 <span class="preprocessor"></span><span class="preprocessor">#endif</span><a name="l00132"></a>00132 <span class="preprocessor"></span><a name="l00133"></a>00133 NAMESPACE_END<a name="l00134"></a>00134 <a name="l00135"></a>00135 <span class="preprocessor">#endif</span></pre></div><hr size="1"><address style="text-align: right;"><small>Generated on Fri Jun 1 11:11:20 2007 for Crypto++ by&nbsp;<a href="http://www.doxygen.org/index.html"><img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.5.2 </small></address></body></html>
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