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<h2>
<span class="refentrytitle">GEN02</span>
</h2>
<p>GEN02 —
Transfers data from immediate pfields into a function table.
</p>
</div>
<div class="refsect1">
<a id="idm281472820668008"></a>
<h2>Description</h2>
<p>
This subroutine transfers data from immediate pfields into a function table.
</p>
</div>
<div class="refsect1">
<a id="idm281472820624104"></a>
<h2>Syntax</h2>
<pre class="synopsis"><span class="command"><strong>f</strong></span> # time size 2 v1 v2 v3 ...</pre>
</div>
<div class="refsect1">
<a id="idm281472820622040"></a>
<h2>Initialization</h2>
<p>
<span class="emphasis"><em>size</em></span> -- number of points in the table. Must be a power of 2 or a power-of-2 plus 1 (see <a class="link" href="f.html" title="f Statement (or Function Table Statement)"><em class="citetitle">f statement</em></a>). The maximum tablesize is 16777216 (2<sup>24</sup>) points.
</p>
<p>
<span class="emphasis"><em>v1, v2, v3,</em></span> etc. -- values to be copied directly into the table space. The number of values is limited by the compile-time variable <span class="emphasis"><em>PMAX</em></span>, which controls the maximum pfields (currently 1000). The values copied may include the table guard point; any table locations not filled will contain zeros.
</p>
<div class="note" style="margin-left: 0.5in; margin-right: 0.5in;">
<table border="0" summary="Note: Note">
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<img alt="[Note]" src="images/note.png" />
</td>
<th align="left">Note</th>
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<td align="left" valign="top">
<p>
If p4 (the GEN routine number is positive, the table will be
post-normalized (rescaled to a maximum absolute value of 1 after
generation). A negative p4 will cause rescaling to be skipped. You will
usually want to use -2 with this GEN function, so that your values are
not normalized.
</p>
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<div class="refsect1">
<a id="idm281472820615336"></a>
<h2>Examples</h2>
<p>
Here is an example of the GEN02 routine. It uses the files <a class="ulink" href="examples/gen02.csd" target="_top"><em class="citetitle">gen02.csd</em></a>.
</p>
<div class="example">
<a id="idm281472820613560"></a>
<p class="title">
<strong>Example 1183. Example of the GEN02 routine.</strong>
</p>
<div class="example-contents">
<p>See the sections <a class="link" href="UsingRealTime.html" title="Real-Time Audio"><em class="citetitle">Real-time Audio</em></a> and <a class="link" href="CommandFlags.html" title="Csound command line"><em class="citetitle">Command Line Flags</em></a> for more information on using command line flags.</p>
<div class="refsect1">
<a id="idm281472683295944"></a>
<pre class="programlisting">
<span class="nt"><CsoundSynthesizer></span>
<span class="nt"><CsOptions></span>
<span class="c1">; Select audio/midi flags here according to platform</span>
-odac <span class="c1">;;;realtime audio out</span>
<span class="c1">;-iadc ;;;uncomment -iadc if realtime audio input is needed too</span>
<span class="c1">; For Non-realtime ouput leave only the line below:</span>
<span class="c1">; -o gen02.wav -W ;;; for file output any platform</span>
<span class="nt"></CsOptions></span>
<span class="nt"><CsInstruments></span>
<span class="vg">sr</span> <span class="o">=</span> <span class="mi">44100</span>
<span class="vg">ksmps</span> <span class="o">=</span> <span class="mi">32</span>
<span class="vg">nchnls</span> <span class="o">=</span> <span class="mi">2</span>
<span class="vg">0dbfs</span> <span class="o">=</span> <span class="mi">1</span>
<span class="kd">instr</span> <span class="nf">1</span>
i<span class="n">fn</span> <span class="o">=</span> <span class="nb">p4</span> <span class="c1">;choose different tables of GEN02</span>
k<span class="n">cps</span> <span class="nb">init</span> <span class="mi">1</span><span class="o">/</span><span class="nb">p3</span> <span class="c1">;index over the length of entire note</span>
k<span class="n">ndx</span> <span class="nb">phasor</span> k<span class="n">cps</span>
i<span class="n">xmode</span> <span class="o">=</span> <span class="mi">1</span> <span class="c1">;normalize index data</span>
k<span class="n">amp</span> <span class="nb">tablei</span> k<span class="n">ndx</span><span class="p">,</span> i<span class="n">fn</span><span class="p">,</span> i<span class="n">xmode</span>
a<span class="n">sig</span> <span class="nb">poscil</span> k<span class="n">amp</span><span class="p">,</span> <span class="mi">440</span><span class="p">,</span> <span class="mi">1</span> <span class="c1">;use GEN02 as envelope for amplitude</span>
<span class="nb">outs</span> a<span class="n">sig</span><span class="p">,</span> a<span class="n">sig</span>
<span class="kd">endin</span>
<span class="nt"></CsInstruments></span>
<span class="nt"><CsScore></span>
<span class="nb">f</span> <span class="mi">1</span> <span class="mi">0</span> <span class="mi">8192</span> <span class="mi">10</span> <span class="mi">1</span> <span class="c1">;sine wave</span>
<span class="nb">f</span> <span class="mi">2</span> <span class="mi">0</span> <span class="mi">5</span> <span class="mi">2</span> <span class="mi">0</span> <span class="mi">2</span> <span class="mi">0</span>
<span class="nb">f</span> <span class="mi">3</span> <span class="mi">0</span> <span class="mi">5</span> <span class="mi">2</span> <span class="mi">0</span> <span class="mi">2</span> <span class="mi">10</span> <span class="mi">0</span>
<span class="nb">f</span> <span class="mi">4</span> <span class="mi">0</span> <span class="mi">9</span> <span class="mi">2</span> <span class="mi">0</span> <span class="mi">2</span> <span class="mi">10</span> <span class="mi">100</span> <span class="mi">0</span>
<span class="nb">i</span> <span class="mi">1</span> <span class="mi">0</span> <span class="mi">2</span> <span class="mi">2</span>
<span class="nb">i</span> <span class="mi">1</span> <span class="mi">3</span> <span class="mi">2</span> <span class="mi">3</span>
<span class="nb">i</span> <span class="mi">1</span> <span class="mi">6</span> <span class="mi">2</span> <span class="mi">4</span>
<span class="nb">e</span>
<span class="nt"></CsScore></span>
<span class="nt"></CsoundSynthesizer></span>
</pre>
</div>
</div>
</div>
<p><br class="example-break" />
<span class="phrase">These are the diagrams of the waveforms of the GEN02 routines, as used in the example:</span>
</p>
<div class="mediaobject">
<img src="images/gen02_1.png" alt="f 2 0 5 2 0 2 0" />
<div class="caption">
<p>f 2 0 5 2 0 2 0</p>
</div>
</div>
<p>
</p>
<div class="mediaobject">
<img src="images/gen02_2.png" alt="f 3 0 5 2 0 2 10 0" />
<div class="caption">
<p>f 3 0 5 2 0 2 10 0</p>
</div>
</div>
<p>
</p>
<div class="mediaobject">
<img src="images/gen02_3.png" alt="f 4 0 9 2 0 2 10 100 0" />
<div class="caption">
<p>f 4 0 9 2 0 2 10 100 0</p>
</div>
</div>
<p>
</p>
</div>
<div class="refsect1">
<a id="idm281472820598680"></a>
<h2>See Also</h2>
<p>
<a class="link" href="GEN17.html" title="GEN17"><em class="citetitle">GEN17</em></a>
</p>
</div>
<div class="refsect1">
<a id="idm281472820596536"></a>
<h2>Credits</h2>
<p>December 2002. Thanks to Rasmus Ekman, corrected the limit of the <span class="emphasis"><em>PMAX</em></span> variable.</p>
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