Reading some of the documentation on writing opcodes in C.<br>Looking at the rms code in ugens5.h and ugens5.c.&nbsp; Not very far yet.<br>Question for anyone who knows:<br>In rmsset I see<br><br>&nbsp;&nbsp;&nbsp; if (!*p-&gt;istor)<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; p-&gt;prvq = 
0.0;<br><br>But I don&#39;t see anything actually assigning the value of *p-&gt;istor to p-&gt;prvq.&nbsp; Does this happen someplace else?<br>Because in the rms function, p-&gt;prvq is assigned to q unconditionally, and this is used for computations.&nbsp; The RMS struct (declaration? definition?) in 
ugens5.h doesn&#39;t initialize prvq either.<br clear="all"><br>I used this orc code:<br>asig&nbsp;&nbsp;&nbsp; init&nbsp;&nbsp;&nbsp; 20000<br>krms&nbsp;&nbsp;&nbsp; rms&nbsp;&nbsp;&nbsp; asig, 10, 20000<br>&nbsp;&nbsp;&nbsp; printk2&nbsp;&nbsp;&nbsp; krms<br><br>and the output climbed to 20000 as it did when I left out iskip, rather than starting there as I expected.&nbsp; I didn&#39;t check if the output was exactly the same.
<br><br>-Chuckk<br><br>-- <br><a href="http://www.badmuthahubbard.com">http://www.badmuthahubbard.com</a>