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cycle.h
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<td id="LC27" class="blob-code blob-code-inner js-file-line"><span class="pl-c">/* machine-dependent cycle counters code. Needs to be inlined. */</span></td>
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<td id="LC30" class="blob-code blob-code-inner js-file-line"><span class="pl-c">/* To use the cycle counters in your code, simply #include "cycle.h" (this</span></td>
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<td id="LC31" class="blob-code blob-code-inner js-file-line"><span class="pl-c"> file), and then use the functions/macros:</span></td>
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<td id="LC35" class="blob-code blob-code-inner js-file-line"><span class="pl-c"> ticks is an opaque typedef defined below, representing the current time.</span></td>
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<td id="L36" class="blob-num js-line-number" data-line-number="36"></td>
<td id="LC36" class="blob-code blob-code-inner js-file-line"><span class="pl-c"> You extract the elapsed time between two calls to gettick() via:</span></td>
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<td id="L37" class="blob-num js-line-number" data-line-number="37"></td>
<td id="LC37" class="blob-code blob-code-inner js-file-line"><span class="pl-c"></span></td>
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<td id="L38" class="blob-num js-line-number" data-line-number="38"></td>
<td id="LC38" class="blob-code blob-code-inner js-file-line"><span class="pl-c"> double elapsed(ticks t1, ticks t0);</span></td>
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<td id="L39" class="blob-num js-line-number" data-line-number="39"></td>
<td id="LC39" class="blob-code blob-code-inner js-file-line"><span class="pl-c"></span></td>
</tr>
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<td id="L40" class="blob-num js-line-number" data-line-number="40"></td>
<td id="LC40" class="blob-code blob-code-inner js-file-line"><span class="pl-c"> which returns a double-precision variable in arbitrary units. You</span></td>
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<td id="L41" class="blob-num js-line-number" data-line-number="41"></td>
<td id="LC41" class="blob-code blob-code-inner js-file-line"><span class="pl-c"> are not expected to convert this into human units like seconds; it</span></td>
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<td id="L42" class="blob-num js-line-number" data-line-number="42"></td>
<td id="LC42" class="blob-code blob-code-inner js-file-line"><span class="pl-c"> is intended only for *comparisons* of time intervals.</span></td>
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<td id="L43" class="blob-num js-line-number" data-line-number="43"></td>
<td id="LC43" class="blob-code blob-code-inner js-file-line"><span class="pl-c"></span></td>
</tr>
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<td id="L44" class="blob-num js-line-number" data-line-number="44"></td>
<td id="LC44" class="blob-code blob-code-inner js-file-line"><span class="pl-c"> (In order to use some of the OS-dependent timer routines like</span></td>
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<td id="L45" class="blob-num js-line-number" data-line-number="45"></td>
<td id="LC45" class="blob-code blob-code-inner js-file-line"><span class="pl-c"> Solaris' gethrtime, you need to paste the autoconf snippet below</span></td>
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<td id="L46" class="blob-num js-line-number" data-line-number="46"></td>
<td id="LC46" class="blob-code blob-code-inner js-file-line"><span class="pl-c"> into your configure.ac file and #include "config.h" before cycle.h,</span></td>
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<td id="L47" class="blob-num js-line-number" data-line-number="47"></td>
<td id="LC47" class="blob-code blob-code-inner js-file-line"><span class="pl-c"> or define the relevant macros manually if you are not using autoconf.)</span></td>
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<td id="L48" class="blob-num js-line-number" data-line-number="48"></td>
<td id="LC48" class="blob-code blob-code-inner js-file-line"><span class="pl-c">*/</span></td>
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<td id="L49" class="blob-num js-line-number" data-line-number="49"></td>
<td id="LC49" class="blob-code blob-code-inner js-file-line">
</td>
</tr>
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<td id="L50" class="blob-num js-line-number" data-line-number="50"></td>
<td id="LC50" class="blob-code blob-code-inner js-file-line"><span class="pl-c">/***************************************************************************/</span></td>
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<td id="L51" class="blob-num js-line-number" data-line-number="51"></td>
<td id="LC51" class="blob-code blob-code-inner js-file-line"><span class="pl-c">/* This file uses macros like HAVE_GETHRTIME that are assumed to be</span></td>
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<td id="L52" class="blob-num js-line-number" data-line-number="52"></td>
<td id="LC52" class="blob-code blob-code-inner js-file-line"><span class="pl-c"> defined according to whether the corresponding function/type/header</span></td>
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<td id="L53" class="blob-num js-line-number" data-line-number="53"></td>
<td id="LC53" class="blob-code blob-code-inner js-file-line"><span class="pl-c"> is available on your system. The necessary macros are most</span></td>
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<td id="L54" class="blob-num js-line-number" data-line-number="54"></td>
<td id="LC54" class="blob-code blob-code-inner js-file-line"><span class="pl-c"> conveniently defined if you are using GNU autoconf, via the tests:</span></td>
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<td id="L55" class="blob-num js-line-number" data-line-number="55"></td>
<td id="LC55" class="blob-code blob-code-inner js-file-line"><span class="pl-c"> </span></td>
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<tr>
<td id="L56" class="blob-num js-line-number" data-line-number="56"></td>
<td id="LC56" class="blob-code blob-code-inner js-file-line"><span class="pl-c"> dnl ---------------------------------------------------------------------</span></td>
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<td id="L57" class="blob-num js-line-number" data-line-number="57"></td>
<td id="LC57" class="blob-code blob-code-inner js-file-line"><span class="pl-c"></span></td>
</tr>
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<td id="L58" class="blob-num js-line-number" data-line-number="58"></td>
<td id="LC58" class="blob-code blob-code-inner js-file-line"><span class="pl-c"> AC_C_INLINE</span></td>
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<td id="L59" class="blob-num js-line-number" data-line-number="59"></td>
<td id="LC59" class="blob-code blob-code-inner js-file-line"><span class="pl-c"> AC_HEADER_TIME</span></td>
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<td id="L60" class="blob-num js-line-number" data-line-number="60"></td>
<td id="LC60" class="blob-code blob-code-inner js-file-line"><span class="pl-c"> AC_CHECK_HEADERS([sys/time.h c_asm.h intrinsics.h mach/mach_time.h])</span></td>
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<td id="L61" class="blob-num js-line-number" data-line-number="61"></td>
<td id="LC61" class="blob-code blob-code-inner js-file-line"><span class="pl-c"></span></td>
</tr>
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<td id="L62" class="blob-num js-line-number" data-line-number="62"></td>
<td id="LC62" class="blob-code blob-code-inner js-file-line"><span class="pl-c"> AC_CHECK_TYPE([hrtime_t],[AC_DEFINE(HAVE_HRTIME_T, 1, [Define to 1 if hrtime_t is defined in <sys/time.h>])],,[#if HAVE_SYS_TIME_H</span></td>
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<td id="L63" class="blob-num js-line-number" data-line-number="63"></td>
<td id="LC63" class="blob-code blob-code-inner js-file-line"><span class="pl-c">#include <sys/time.h></span></td>
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<td id="L64" class="blob-num js-line-number" data-line-number="64"></td>
<td id="LC64" class="blob-code blob-code-inner js-file-line"><span class="pl-c">#endif])</span></td>
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<td id="L65" class="blob-num js-line-number" data-line-number="65"></td>
<td id="LC65" class="blob-code blob-code-inner js-file-line"><span class="pl-c"></span></td>
</tr>
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<td id="L66" class="blob-num js-line-number" data-line-number="66"></td>
<td id="LC66" class="blob-code blob-code-inner js-file-line"><span class="pl-c"> AC_CHECK_FUNCS([gethrtime read_real_time time_base_to_time clock_gettime mach_absolute_time])</span></td>
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<td id="L67" class="blob-num js-line-number" data-line-number="67"></td>
<td id="LC67" class="blob-code blob-code-inner js-file-line"><span class="pl-c"></span></td>
</tr>
<tr>
<td id="L68" class="blob-num js-line-number" data-line-number="68"></td>
<td id="LC68" class="blob-code blob-code-inner js-file-line"><span class="pl-c"> dnl Cray UNICOS _rtc() (real-time clock) intrinsic</span></td>
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<td id="L69" class="blob-num js-line-number" data-line-number="69"></td>
<td id="LC69" class="blob-code blob-code-inner js-file-line"><span class="pl-c"> AC_MSG_CHECKING([for _rtc intrinsic])</span></td>
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<tr>
<td id="L70" class="blob-num js-line-number" data-line-number="70"></td>
<td id="LC70" class="blob-code blob-code-inner js-file-line"><span class="pl-c"> rtc_ok=yes</span></td>
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<td id="L71" class="blob-num js-line-number" data-line-number="71"></td>
<td id="LC71" class="blob-code blob-code-inner js-file-line"><span class="pl-c"> AC_TRY_LINK([#ifdef HAVE_INTRINSICS_H</span></td>
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<tr>
<td id="L72" class="blob-num js-line-number" data-line-number="72"></td>
<td id="LC72" class="blob-code blob-code-inner js-file-line"><span class="pl-c">#include <intrinsics.h></span></td>
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<tr>
<td id="L73" class="blob-num js-line-number" data-line-number="73"></td>
<td id="LC73" class="blob-code blob-code-inner js-file-line"><span class="pl-c">#endif], [_rtc()], [AC_DEFINE(HAVE__RTC,1,[Define if you have the UNICOS _rtc() intrinsic.])], [rtc_ok=no])</span></td>
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<tr>
<td id="L74" class="blob-num js-line-number" data-line-number="74"></td>
<td id="LC74" class="blob-code blob-code-inner js-file-line"><span class="pl-c"> AC_MSG_RESULT($rtc_ok)</span></td>
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<tr>
<td id="L75" class="blob-num js-line-number" data-line-number="75"></td>
<td id="LC75" class="blob-code blob-code-inner js-file-line"><span class="pl-c"></span></td>
</tr>
<tr>
<td id="L76" class="blob-num js-line-number" data-line-number="76"></td>
<td id="LC76" class="blob-code blob-code-inner js-file-line"><span class="pl-c"> dnl ---------------------------------------------------------------------</span></td>
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<td id="L77" class="blob-num js-line-number" data-line-number="77"></td>
<td id="LC77" class="blob-code blob-code-inner js-file-line"><span class="pl-c">*/</span></td>
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<tr>
<td id="L78" class="blob-num js-line-number" data-line-number="78"></td>
<td id="LC78" class="blob-code blob-code-inner js-file-line">
</td>
</tr>
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<td id="L79" class="blob-num js-line-number" data-line-number="79"></td>
<td id="LC79" class="blob-code blob-code-inner js-file-line"><span class="pl-c">/***************************************************************************/</span></td>
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<tr>
<td id="L80" class="blob-num js-line-number" data-line-number="80"></td>
<td id="LC80" class="blob-code blob-code-inner js-file-line">
</td>
</tr>
<tr>
<td id="L81" class="blob-num js-line-number" data-line-number="81"></td>
<td id="LC81" class="blob-code blob-code-inner js-file-line">#<span class="pl-k">if</span> TIME_WITH_SYS_TIME</td>
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<tr>
<td id="L82" class="blob-num js-line-number" data-line-number="82"></td>
<td id="LC82" class="blob-code blob-code-inner js-file-line"># <span class="pl-k">include</span> <span class="pl-s"><span class="pl-pds"><</span>sys/time.h<span class="pl-pds">></span></span></td>
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<td id="L83" class="blob-num js-line-number" data-line-number="83"></td>
<td id="LC83" class="blob-code blob-code-inner js-file-line"># <span class="pl-k">include</span> <span class="pl-s"><span class="pl-pds"><</span>time.h<span class="pl-pds">></span></span></td>
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<td id="L84" class="blob-num js-line-number" data-line-number="84"></td>
<td id="LC84" class="blob-code blob-code-inner js-file-line">#<span class="pl-k">else</span></td>
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<tr>
<td id="L85" class="blob-num js-line-number" data-line-number="85"></td>
<td id="LC85" class="blob-code blob-code-inner js-file-line"># <span class="pl-k">if</span> HAVE_SYS_TIME_H</td>
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<tr>
<td id="L86" class="blob-num js-line-number" data-line-number="86"></td>
<td id="LC86" class="blob-code blob-code-inner js-file-line"># <span class="pl-k">include</span> <span class="pl-s"><span class="pl-pds"><</span>sys/time.h<span class="pl-pds">></span></span></td>
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<tr>
<td id="L87" class="blob-num js-line-number" data-line-number="87"></td>
<td id="LC87" class="blob-code blob-code-inner js-file-line"># <span class="pl-k">else</span></td>
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<tr>
<td id="L88" class="blob-num js-line-number" data-line-number="88"></td>
<td id="LC88" class="blob-code blob-code-inner js-file-line"># <span class="pl-k">include</span> <span class="pl-s"><span class="pl-pds"><</span>time.h<span class="pl-pds">></span></span></td>
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<td id="L89" class="blob-num js-line-number" data-line-number="89"></td>
<td id="LC89" class="blob-code blob-code-inner js-file-line"># <span class="pl-k">endif</span></td>
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<tr>
<td id="L90" class="blob-num js-line-number" data-line-number="90"></td>
<td id="LC90" class="blob-code blob-code-inner js-file-line">#<span class="pl-k">endif</span></td>
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<tr>
<td id="L91" class="blob-num js-line-number" data-line-number="91"></td>
<td id="LC91" class="blob-code blob-code-inner js-file-line">
</td>
</tr>
<tr>
<td id="L92" class="blob-num js-line-number" data-line-number="92"></td>
<td id="LC92" class="blob-code blob-code-inner js-file-line">#<span class="pl-k">define</span> <span class="pl-en">INLINE_ELAPSED</span>(<span class="pl-v">INL</span>) <span class="pl-k">static</span> INL <span class="pl-k">double</span> <span class="pl-en">elapsed</span>(ticks t1, ticks t0) \</td>
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<tr>
<td id="L93" class="blob-num js-line-number" data-line-number="93"></td>
<td id="LC93" class="blob-code blob-code-inner js-file-line">{ \</td>
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<tr>
<td id="L94" class="blob-num js-line-number" data-line-number="94"></td>
<td id="LC94" class="blob-code blob-code-inner js-file-line"> <span class="pl-k">return</span> (<span class="pl-k">double</span>)t1 - (<span class="pl-k">double</span>)t0; \</td>
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<tr>
<td id="L95" class="blob-num js-line-number" data-line-number="95"></td>
<td id="LC95" class="blob-code blob-code-inner js-file-line">}</td>
</tr>
<tr>
<td id="L96" class="blob-num js-line-number" data-line-number="96"></td>
<td id="LC96" class="blob-code blob-code-inner js-file-line">
</td>
</tr>
<tr>
<td id="L97" class="blob-num js-line-number" data-line-number="97"></td>
<td id="LC97" class="blob-code blob-code-inner js-file-line"><span class="pl-c">/*----------------------------------------------------------------*/</span></td>
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<tr>
<td id="L98" class="blob-num js-line-number" data-line-number="98"></td>
<td id="LC98" class="blob-code blob-code-inner js-file-line"><span class="pl-c">/* Solaris */</span></td>
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<tr>
<td id="L99" class="blob-num js-line-number" data-line-number="99"></td>
<td id="LC99" class="blob-code blob-code-inner js-file-line">#<span class="pl-k">if</span> defined(HAVE_GETHRTIME) && defined(HAVE_HRTIME_T) && !defined(HAVE_TICK_COUNTER)</td>
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<tr>
<td id="L100" class="blob-num js-line-number" data-line-number="100"></td>
<td id="LC100" class="blob-code blob-code-inner js-file-line"><span class="pl-k">typedef</span> <span class="pl-c1">hrtime_t</span> ticks;</td>
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<tr>
<td id="L101" class="blob-num js-line-number" data-line-number="101"></td>
<td id="LC101" class="blob-code blob-code-inner js-file-line">
</td>
</tr>
<tr>
<td id="L102" class="blob-num js-line-number" data-line-number="102"></td>
<td id="LC102" class="blob-code blob-code-inner js-file-line">#<span class="pl-k">define</span> <span class="pl-en">getticks</span> gethrtime</td>
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<tr>
<td id="L103" class="blob-num js-line-number" data-line-number="103"></td>
<td id="LC103" class="blob-code blob-code-inner js-file-line">
</td>
</tr>
<tr>
<td id="L104" class="blob-num js-line-number" data-line-number="104"></td>
<td id="LC104" class="blob-code blob-code-inner js-file-line"><span class="pl-en">INLINE_ELAPSED</span>(<span class="pl-k">inline</span>)</td>
</tr>
<tr>
<td id="L105" class="blob-num js-line-number" data-line-number="105"></td>
<td id="LC105" class="blob-code blob-code-inner js-file-line">
</td>
</tr>
<tr>
<td id="L106" class="blob-num js-line-number" data-line-number="106"></td>
<td id="LC106" class="blob-code blob-code-inner js-file-line">#<span class="pl-k">define</span> <span class="pl-en">HAVE_TICK_COUNTER</span></td>
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<tr>
<td id="L107" class="blob-num js-line-number" data-line-number="107"></td>
<td id="LC107" class="blob-code blob-code-inner js-file-line">#<span class="pl-k">endif</span></td>
</tr>
<tr>
<td id="L108" class="blob-num js-line-number" data-line-number="108"></td>
<td id="LC108" class="blob-code blob-code-inner js-file-line">
</td>
</tr>
<tr>
<td id="L109" class="blob-num js-line-number" data-line-number="109"></td>
<td id="LC109" class="blob-code blob-code-inner js-file-line"><span class="pl-c">/*----------------------------------------------------------------*/</span></td>
</tr>
<tr>
<td id="L110" class="blob-num js-line-number" data-line-number="110"></td>
<td id="LC110" class="blob-code blob-code-inner js-file-line"><span class="pl-c">/* AIX v. 4+ routines to read the real-time clock or time-base register */</span></td>
</tr>
<tr>
<td id="L111" class="blob-num js-line-number" data-line-number="111"></td>
<td id="LC111" class="blob-code blob-code-inner js-file-line">#<span class="pl-k">if</span> defined(HAVE_READ_REAL_TIME) && defined(HAVE_TIME_BASE_TO_TIME) && !defined(HAVE_TICK_COUNTER)</td>
</tr>
<tr>
<td id="L112" class="blob-num js-line-number" data-line-number="112"></td>
<td id="LC112" class="blob-code blob-code-inner js-file-line"><span class="pl-k">typedef</span> <span class="pl-c1">timebasestruct_t</span> ticks;</td>
</tr>
<tr>
<td id="L113" class="blob-num js-line-number" data-line-number="113"></td>
<td id="LC113" class="blob-code blob-code-inner js-file-line">
</td>
</tr>
<tr>
<td id="L114" class="blob-num js-line-number" data-line-number="114"></td>
<td id="LC114" class="blob-code blob-code-inner js-file-line"><span class="pl-k">static</span> __inline ticks <span class="pl-en">getticks</span>(<span class="pl-k">void</span>)</td>
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<tr>
<td id="L115" class="blob-num js-line-number" data-line-number="115"></td>
<td id="LC115" class="blob-code blob-code-inner js-file-line">{</td>
</tr>
<tr>
<td id="L116" class="blob-num js-line-number" data-line-number="116"></td>
<td id="LC116" class="blob-code blob-code-inner js-file-line"> ticks t;</td>
</tr>
<tr>
<td id="L117" class="blob-num js-line-number" data-line-number="117"></td>
<td id="LC117" class="blob-code blob-code-inner js-file-line"> <span class="pl-c1">read_real_time</span>(&t, TIMEBASE_SZ);</td>
</tr>
<tr>
<td id="L118" class="blob-num js-line-number" data-line-number="118"></td>
<td id="LC118" class="blob-code blob-code-inner js-file-line"> <span class="pl-k">return</span> t;</td>
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<tr>
<td id="L119" class="blob-num js-line-number" data-line-number="119"></td>
<td id="LC119" class="blob-code blob-code-inner js-file-line">}</td>
</tr>
<tr>
<td id="L120" class="blob-num js-line-number" data-line-number="120"></td>
<td id="LC120" class="blob-code blob-code-inner js-file-line">
</td>
</tr>
<tr>
<td id="L121" class="blob-num js-line-number" data-line-number="121"></td>
<td id="LC121" class="blob-code blob-code-inner js-file-line"><span class="pl-k">static</span> __inline <span class="pl-k">double</span> <span class="pl-en">elapsed</span>(ticks t1, ticks t0) <span class="pl-c">/* time in nanoseconds */</span></td>
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<tr>
<td id="L122" class="blob-num js-line-number" data-line-number="122"></td>
<td id="LC122" class="blob-code blob-code-inner js-file-line">{</td>
</tr>
<tr>
<td id="L123" class="blob-num js-line-number" data-line-number="123"></td>
<td id="LC123" class="blob-code blob-code-inner js-file-line"> <span class="pl-c1">time_base_to_time</span>(&t1, TIMEBASE_SZ);</td>
</tr>
<tr>
<td id="L124" class="blob-num js-line-number" data-line-number="124"></td>
<td id="LC124" class="blob-code blob-code-inner js-file-line"> <span class="pl-c1">time_base_to_time</span>(&t0, TIMEBASE_SZ);</td>
</tr>
<tr>
<td id="L125" class="blob-num js-line-number" data-line-number="125"></td>
<td id="LC125" class="blob-code blob-code-inner js-file-line"> <span class="pl-k">return</span> (((<span class="pl-k">double</span>)t1.<span class="pl-smi">tb_high</span> - (<span class="pl-k">double</span>)t0.<span class="pl-smi">tb_high</span>) * <span class="pl-c1">1.0e9</span> + </td>
</tr>
<tr>
<td id="L126" class="blob-num js-line-number" data-line-number="126"></td>
<td id="LC126" class="blob-code blob-code-inner js-file-line"> ((<span class="pl-k">double</span>)t1.<span class="pl-smi">tb_low</span> - (<span class="pl-k">double</span>)t0.<span class="pl-smi">tb_low</span>));</td>
</tr>
<tr>
<td id="L127" class="blob-num js-line-number" data-line-number="127"></td>
<td id="LC127" class="blob-code blob-code-inner js-file-line">}</td>
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<td id="L128" class="blob-num js-line-number" data-line-number="128"></td>
<td id="LC128" class="blob-code blob-code-inner js-file-line">
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<td id="L129" class="blob-num js-line-number" data-line-number="129"></td>
<td id="LC129" class="blob-code blob-code-inner js-file-line">#<span class="pl-k">define</span> <span class="pl-en">HAVE_TICK_COUNTER</span></td>
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<td id="L130" class="blob-num js-line-number" data-line-number="130"></td>
<td id="LC130" class="blob-code blob-code-inner js-file-line">#<span class="pl-k">endif</span></td>
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<td id="L131" class="blob-num js-line-number" data-line-number="131"></td>
<td id="LC131" class="blob-code blob-code-inner js-file-line">
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<td id="L132" class="blob-num js-line-number" data-line-number="132"></td>
<td id="LC132" class="blob-code blob-code-inner js-file-line"><span class="pl-c">/*----------------------------------------------------------------*/</span></td>
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<td id="L133" class="blob-num js-line-number" data-line-number="133"></td>
<td id="LC133" class="blob-code blob-code-inner js-file-line"><span class="pl-c">/*</span></td>
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<td id="L134" class="blob-num js-line-number" data-line-number="134"></td>
<td id="LC134" class="blob-code blob-code-inner js-file-line"><span class="pl-c"> * PowerPC ``cycle'' counter using the time base register.</span></td>
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<td id="L135" class="blob-num js-line-number" data-line-number="135"></td>
<td id="LC135" class="blob-code blob-code-inner js-file-line"><span class="pl-c"> */</span></td>
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<td id="L136" class="blob-num js-line-number" data-line-number="136"></td>
<td id="LC136" class="blob-code blob-code-inner js-file-line">#<span class="pl-k">if</span> ((((defined(__GNUC__) && (defined(__powerpc__) || defined(__ppc__))) || (defined(__MWERKS__) && defined(macintosh)))) || (defined(__IBM_GCC_ASM) && (defined(__powerpc__) || defined(__ppc__)))) && !defined(HAVE_TICK_COUNTER)</td>
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<td id="L137" class="blob-num js-line-number" data-line-number="137"></td>
<td id="LC137" class="blob-code blob-code-inner js-file-line"><span class="pl-k">typedef</span> <span class="pl-k">unsigned</span> <span class="pl-k">long</span> <span class="pl-k">long</span> ticks;</td>
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<td id="L138" class="blob-num js-line-number" data-line-number="138"></td>
<td id="LC138" class="blob-code blob-code-inner js-file-line">
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<td id="L139" class="blob-num js-line-number" data-line-number="139"></td>
<td id="LC139" class="blob-code blob-code-inner js-file-line"><span class="pl-k">static</span> __inline__ ticks <span class="pl-en">getticks</span>(<span class="pl-k">void</span>)</td>