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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="ch14.css"><TITLE> Section 14</TITLE></HEAD><BODY BGCOLOR="#ffffff"><DIV><HR><P><A HREF="none">Chapter start</A> <A HREF="ch14.1.htm">Next page</A></P></DIV><DIV><H1 CLASS="Chapter"><A NAME="pgfId=688"> </A>Section 14<A NAME="21043"> </A></H1><H1 CLASS="ChapterTitle"><A NAME="pgfId=831"> </A>System <A NAME="marker=19"> </A><A NAME="marker=20"> </A><A NAME="marker=21"> </A>tasks and functions<A NAME=""> </A></H1><P CLASS="Body"><A NAME="pgfId=789"> </A>This section describes system tasks and functions that are considered part of Verilog HDL. These system tasks and functions are divided into ten categories as follows:</P><P CLASS="Body"><A NAME="pgfId=1148"> </A></P><DIV><MAP NAME="ch14-1"></MAP><IMG SRC="ch14-1.gif" USEMAP="#ch14-1"></DIV><P CLASS="Body"><A NAME="pgfId=840"> </A>These utility tasks and functions provide some broadly useful capabilities. The following sections describe the behavior of these tasks and functions--without giving the complete implementation details. Additional tasks for value change dump (VCD) are described in <A HREF="/Humuhumu/Files/Prof_Smith/Academic/ASICs/Web/ASICs/HTML/Verilog/LRM/HTML/14/ch15.htm#11807" CLASS="XRef"></A>.</P><H2 CLASS="SectionTOC"><A HREF="ch14.1.htm#pgfId=1200" CLASS="Hypertext">14.1 Display system tasks</A></H2><H2 CLASS="SectionTOC"><A HREF="ch14.2.htm#pgfId=770" CLASS="Hypertext">14.2 File input-output system tasks</A></H2><H2 CLASS="SectionTOC"><A HREF="ch14.3.htm#pgfId=987" CLASS="Hypertext">14.3 Timescale system tasks</A></H2><H2 CLASS="SectionTOC"><A HREF="ch14.4.htm#pgfId=795" CLASS="Hypertext">14.4 Simulation control system tasks</A></H2><H2 CLASS="SectionTOC"><A HREF="ch14.5.htm#pgfId=1062" CLASS="Hypertext">14.5 Timing check system tasks</A></H2><H2 CLASS="SectionTOC"><A HREF="ch14.6.htm#pgfId=793" CLASS="Hypertext">14.6 PLA modeling system tasks</A></H2><H2 CLASS="SectionTOC"><A HREF="ch14.7.htm#pgfId=832" CLASS="Hypertext">14.7 Stochastic analysis tasks</A></H2><H2 CLASS="SectionTOC"><A HREF="ch14.8.htm#pgfId=963" CLASS="Hypertext">14.8 Simulation time system functions</A></H2><H2 CLASS="SectionTOC"><A HREF="ch14.9.htm#pgfId=796" CLASS="Hypertext">14.9 Conversion functions for reals</A></H2><H2 CLASS="SectionTOC"><A HREF="ch14.a.htm#pgfId=1555" CLASS="Hypertext">14.10 Probabilistic distribution functions </A></H2></DIV><HR><P><A HREF="none">Chapter start</A> <A HREF="ch14.1.htm">Next page</A></P></BODY></HTML>⌨️ 快捷键说明
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