<?xml version="1.0" encoding="UTF-8" standalone="no"?> <!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/html; charset=UTF-8" /> <title>Instrument and Opcode Block Statements</title> <link rel="stylesheet" type="text/css" href="csound.css" /> <link rel="stylesheet" type="text/css" href="syntax-highlighting.css" /> <meta name="generator" content="DocBook XSL Stylesheets Vsnapshot" /> <link rel="home" href="index.html" title="The Canonical Csound Reference Manual" /> <link rel="up" href="OrchTop.html" title="Syntax of the Orchestra" /> <link rel="prev" href="OrchTop.html" title="Syntax of the Orchestra" /> <link rel="next" href="OrchStatemnt.html" title="Ordinary Statements" /> </head> <body> <div class="navheader"> <table width="100%" summary="Navigation header"> <tr> <th colspan="3" align="center">Instrument and Opcode Block Statements</th> </tr> <tr> <td width="20%" align="left"><a accesskey="p" href="OrchTop.html">Prev</a> </td> <th width="60%" align="center">Syntax of the Orchestra</th> <td width="20%" align="right"> <a accesskey="n" href="OrchStatemnt.html">Next</a></td> </tr> </table> <hr /> </div> <div class="section"> <div class="titlepage"> <div> <div> <h2 class="title" style="clear: both"><a id="OrchIblock"></a>Instrument and Opcode Block Statements</h2> </div> </div> </div> <p> An instrument block is comprised of <span class="emphasis"><em>ordinary statements</em></span> that set values, control the logical flow, or invoke the various signal processing subroutines that lead to audio output. Statements that define an instrument block are: </p> <div class="itemizedlist"> <ul class="itemizedlist" style="list-style-type: disc; "> <li class="listitem"> <p> <a class="link" href="instr.html" title="instr"> <em class="citetitle">instr</em> </a> </p> </li> <li class="listitem"> <p> <a class="link" href="endin.html" title="endin"> <em class="citetitle">endin</em> </a> </p> </li> </ul> </div> <p> An instrument block looks like this: </p> <pre class="programlisting"> <span class="oblock">instr</span> 1 <span class="comment">;A simple sine wave oscillator</span> aout <span class="opc">oscils</span> 10000, 440, 0 out <span class="opc">aout</span> <span class="oblock">endin</span></pre> <p> </p> <p> Statements that define a user defined opcode (UDO) block are </p> <div class="itemizedlist"> <ul class="itemizedlist" style="list-style-type: disc; "> <li class="listitem"> <p> <a class="link" href="opcode.html" title="opcode"> <em class="citetitle">opcode</em> </a> </p> </li> <li class="listitem"> <p> <a class="link" href="endop.html" title="endop"> <em class="citetitle">endop</em> </a> </p> </li> </ul> </div> <p> See the <a class="link" href="OrchUDO.html" title="User Defined Opcodes (UDO)"><em class="citetitle">UDO</em></a> section for more information. </p> </div> <div class="navfooter"> <hr /> <table width="100%" summary="Navigation footer"> <tr> <td width="40%" align="left"><a accesskey="p" href="OrchTop.html">Prev</a> </td> <td width="20%" align="center"> <a accesskey="u" href="OrchTop.html">Up</a> </td> <td width="40%" align="right"> <a accesskey="n" href="OrchStatemnt.html">Next</a></td> </tr> <tr> <td width="40%" align="left" valign="top">Syntax of the Orchestra </td> <td width="20%" align="center"> <a accesskey="h" href="index.html">Home</a> </td> <td width="40%" align="right" valign="top"> Ordinary Statements</td> </tr> </table> </div> </body> </html>