--- /dev/null
+<html>
+<head>
+<title>Mikrocontroller Simulator</title>
+</head>
+
+<body bgcolor="white">
+
+[ <a href="#download">Download</a> ]
+
+[ <a href="#install">Installation</a> ]
+
+[ <a href="#use">Usage</a> ]
+
+[ <a href="mailto:drdani@mazsola.iit.uni-miskolc.hu">Mail to
+developer</a> ]
+
+<p><img src="UCsim.jpg">
+
+<h1>Software simulator for microcontrollers</h1>
+
+<b><i>uCsim</i></b> can be used to simulate microcontrollers. It
+supports MCS51 family. AVR and Z80 support is under development.
+
+<a name="download"><h2>Download</h2></a>
+
+Simulator is available for two platforms: DOS and UNIX but DOS version
+is not supported any more. DOS version is not finished so I call it
+demo version and it is available in binary only. Limitations of DOS
+version are:
+
+<ul><li>There is no built in help available;
+
+<li>Some of the utilities are not working, for example calculator, bit
+simulator;
+
+<li>Serial line works in mode 1 independently of mode bits.</ul>
+
+I used this simulator to verify my applications and I never used
+missing feautres mentioned above, so I think that this "demo" version
+can be usefull anyway.
+
+<p><a
+href="http://mazsola.iit.uni-miskolc.hu/~drdani/embedded/s51/download">Download
+now</a>
+
+
+<!-- INSTALL -->
+
+<a name="install"><h2>How to install</h2></a>
+
+<b>DOS version</b>
+
+<p>Get the ZIP file and unzip it. ZIP file contains three files:
+<b>s51.exe</b> the executable itself, <b>dpmi16bi.ovl</b> and
+<b>rtm.exe</b>. Last two files are required because <b>s51.exe</b> is
+a DOS protected mode program. Put these files in a directory which is
+in the PATH or keep them together with the <b>s51.exe</b>.
+
+<p><b>UNIX version</b>
+
+<p>UNIX version is distributed in source.
+
+<ol><li>Get archive file, uncompress and untar it. These steps will
+produce a directory <b>ucsim-X.Y.Z</b> where X.Y.Z is the version
+number.
+
+<li>Go to the directory and configure the package. Issue
+<tt><b>configure</b></tt> command. It will determine your system and
+make <b>Makefile</b>. Installation directory can be specified with
+<b><tt>--<!-- -- -->prefix=<i>dir</i></tt></b> option to the
+<tt><b>configure</b></tt>. Default directory is
+<tt>/usr/local</tt>. Executable file will be placed in <tt>bin</tt>
+subdirectory.
+
+<li>Compile the package with <tt><b>make</b></tt> command.
+
+<li>Install executable <b>s51</b> to any directory you want. It can be
+done with <tt><b>make install</b></tt> command which will place files
+in installation directory specified with <tt><b>--<!-- --
+-->prefix=<i>dir</i></b></tt> option of
+<tt><b>configure</b></tt>. Note that you may have to have special
+privilege to do this if installation directory is not writable by you.
+
+</ol>
+
+
+<!-- USE -->
+
+<a name="use"><h2>How to use</h2></a>
+
+<h4>DOS version</h4>
+
+S51 for DOS has been written in Borland Pascal using Turbo Vision to
+produce menu driven, multiwindow user interface which is very easy to
+use. The program can be started using following command:
+
+<p><tt>C:\> s51 [input file]</tt>
+
+<p>Parameter is optional. If it specified it must be the name of an
+Intel hex file. Some screenshots of the program and short descriptions
+of them:
+
+<ul><li><a href="cpu.html">CPU window</a>
+
+<li><a href="wins.html">Different kind of windows</a>
+
+<li><a href="timers.html">Timer/Counters</a>
+
+<li><a href="interrupt.html">Interrupt system</a>
+
+<li><a href="term_cpuopt.html">Terminal window and CPU option dialog
+box</a></ul>
+
+
+<h4>UNIX version</h4>
+
+<a href="invoke.html">Invokation</a>. <br>Starting the simulator
+program.
+
+<p><b>Features of the simulator</b>
+
+<ul>
+
+<li><a href="analyzer.html">Code analyzer</a>. <br>The simulator tries
+to figure out places of valid instructions in code area. This feature
+included in both DOS and UNIX versions.
+
+<li><a href="cpu_types.html">Processor types</a>. <br>The simulator can
+simulate different type of microcontrollers.
+
+<li><a href="mulcons.html">Multiple consoles</a>. <br>The simulator can
+handle more than one command consoles and accepts command from
+multiple sources. It also can be driven by other programs such as
+debugger interfaces.
+
+<li><a href="serial.html">Serial interfaces</a>. <br>The simulator can
+virtually connect a terminal to serial interface of the simulated CPU.
+
+<li><a href="cmd.html">Command reference</a>. <i>(Now updated up to
+0.2.37)</i> <br>The simulator can be controlled via a command line
+interface. It accepts simple commands.
+
+</ul>
+
+<hr>
+
+<table border="0">
+<tr><td><a href="mailto:drdani@mazsola.iit.uni-miskolc.hu"><img
+src="post.jpg" align="top" border="0"></a></td>
+
+<td><i>© 1997,99 Dániel Drótos, Talker Bt.</i> <br><a
+href="mailto:drdani@mazsola.iit.uni-miskolc.hu">drdani@mazsola.iit.uni-miskolc.hu</a></td></tr>
+</table>
+
+</body>
+</html>
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