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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML EXPERIMENTAL 970324//EN"><HTML><HEAD><META NAME="GENERATOR" CONTENT="Adobe FrameMaker 5.5/HTML Export Filter"><LINK REL="STYLESHEET" HREF="ch07.css"><TITLE> 7.9 Implicit net declarations </TITLE></HEAD><BODY BGCOLOR="#ffffff"><DIV><HR><P><A HREF="ch07.htm">Chapter start</A> <A HREF="ch07.8.htm">Previous page</A> <A HREF="ch07.a.htm">Next page</A></P></DIV><H1 CLASS="Section"><A NAME="pgfId=1525"> </A>7.9 <A NAME="54549"> </A>I<A NAME="marker=325"> </A>mplicit net declarations </H1><P CLASS="Body"><A NAME="pgfId=1526"> </A>Including a previously unused identifier in a terminal list shall implicitly declare a new net of type <B CLASS="Keyword">wire</B>, or of type defined by the compiler directive <B CLASS="Keyword">`default_nettype</B> (see <A HREF="/Humuhumu/Files/Prof_Smith/Academic/ASICs/Web/ASICs/HTML/Verilog/LRM/HTML/07/ch16.htm#44855" CLASS="XRef"></A>), with zero delay.</P><P CLASS="Body"><A NAME="pgfId=1527"> </A>Each implicitly declared net shall connect to one or more of the following:</P><UL><LI CLASS="DashedList"><A NAME="pgfId=1528"> </A>gate output</LI><LI CLASS="DashedList"><A NAME="pgfId=1529"> </A>bidirectional terminal</LI><LI CLASS="DashedList"><A NAME="pgfId=1530"> </A>module output port <A NAME="marker=329"> </A> </LI></UL><HR><P><A HREF="ch07.htm">Chapter start</A> <A HREF="ch07.8.htm">Previous page</A> <A HREF="ch07.a.htm">Next page</A></P></BODY></HTML>?? 快捷鍵說明
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