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<html>
<head>
<meta name="viewport" content="width=device-width, initial-scale=1" />
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<title>Microcontroller Simulator</title>
</head>
<body style=" background-color: white;">
[ <a href="news.html">News</a> ]
[ <a href="#download">Download</a> (<a href="https://github.com/danieldrotos/ucsim/releases/latest">latest</a>) ]
[ <a href="#install">Installation</a> ]
[ <a href="#use">Usage</a> ]
[ <a href="mailto:dr.dkdb@gmail.com">Mail to developer</a> ]
<p> </p>
<pre><tt><font size="+1">
_____ _
/ ____| (_)
_ _| | ___ _ _ __ ___
| | | | | / __| | '_ ` _ \
| |_| | |____\__ \ | | | | | |
\ ._,_|\_____|___/_|_| |_| |_|
| |
|_|
</font></tt></pre>
<h1>Software simulator for microcontrollers</h1>
<p><b><i>µCsim</i></b> can be used to simulate
microcontrollers. It supports
<ul><li>Intel (MCS51 family, MCS48, MCS80, MCS85)</li>
<li>XA51,</li>
<li>AVR core,</li>
<li>Z80 (Z80, Z180, GB80, EZ80, Z80N, R800),</li>
<li>TLCS90,</li>
<li>Rabbit (r2k, r3k, r4k, r5k)</li>
<li>Motorola (6800, 68hc08, 6809, 68hc11, 68hc12)</li>
<li>MOS6502,</li>
<li>ST7,</li>
<li>STM8,</li>
<li>Padauk (pdk13, pdk14, pdk15, pdk16)</li>
<li>PicoBlaze,</li>
<li><a href="https://danieldrotos.github.io/p12dev/">p1516,
p2223</a> soft processors,</li>
<li>F8 soft processor,</li>
<li>OISC processors (URISC, MISC16)</li>
</ul>
It can run on Linux, Windows, OSX, BSD, and other systems.</p>
<p>See <a href="news.html">what's new</a> in current version.</p>
<h2><a name="download">Download</a></h2>
<p>You can download <i>µCsim</i> from two places:</p>
<p><b>SDCC homepage.</b> <i>µCsim</i> is part of the SDCC
(Small Device C Compiler) project. You can download source of
SDCC or precompiled binaries from <a href="http://sdcc.sf.net">http://sdcc.sf.net</a>.
Please note, that SDCC binary package contains limited <i>µCsim</i>,
including simulators for SDCC ports only.</p>
<p><b><i>µCsim</i> site.</b> Standalone source package is
available on the <i>µCsim</i> web site:
<a href="https://github.com/danieldrotos/ucsim/releases">https://github.com/danieldrotos/ucsim/releases</a></p>
<p>Home site contains precompiled Debian (i386 and amd64
architectures) packages for all Debian based Linux
distributions, Windows installer and standalone Windows
package.</p>
<p>Older versions are available from the archive site: <a href="http://mazsola.iit.uni-miskolc.hu/ucsim/archive">http://mazsola.iit.uni-miskolc.hu/ucsim/download</a></p>
<p><!-- INSTALL --></p>
<h2><a name="install">How to install</a></h2>
<p>UNIX version is distributed in source, as well as
in pre-compiled debian stable packages for i386 and amd64
architectures.</p>
<p>Windows version distributed as a setup executable and as a
portable zip package.</p>
<h3>How to compile from source</h3>
<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>
<li>Make sure, that following packages are installed on your
system: <b>make</b> (GNU make is required),
<b>bison</b> (or yacc), <b>flex</b> (or lex), <b>libncurses-dev</b>.
You will need a C++ compiler as well.</li>
<li>Go to the directory and configure the
package. Issue <tt><b>./configure</b></tt> command. It will
determine your system and produce <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 files will be placed
in <tt>bin</tt> subdirectory.</li>
<li>Compile the package with <tt><b>make</b></tt> command,
or <b>gmake</b> if GNU make has that name. </li>
<li>Install
executables <b>ucsim_i8051</b>, <b>ucsim_avr</b>, <b>ucsim_hc08</b>, <b>ucsim_xa</b>, <b>ucsim_z80,
etc.</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 the user. </li>
</ol>
<!-- USE -->
<h2><a name="use">How to use</a></h2>
<ul>
<li> <a href="invoke.html">Invocation</a>.<br>
Starting the simulator program. </li>
</ul>
<p><b>Features of the simulator</b> </p>
<ul>
<li><a href="analyzer.html">Code analyzer</a>. <br>
The simulator tries to figure out places of valid instructions in code
area.</li>
<li><a href="cpu_types.html">Processor types</a>. <br>
The simulator can simulate different type of microcontrollers. </li>
<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>
<li><a href="serial.html">Serial interfaces</a>. <br>
The simulator can virtually connect a terminal to serial interface of
the simulated CPU. </li>
<li><a href="memory.html">Memory simulation</a>. <br>
Simulated CPU provides address spaces, storage is simulated by memory
chips, address decoders connects them together. </li>
<li><a href="simif.html">Simulator interface</a>.<br>
This is a special interface which provides services for the simulated
program. This services can be used to control the simulator (for example
run/stop) and access some host features (print, file I/O).</li>
<li><a href="vcd.html">VCD file I/O</a>.<br>
This is a special virtual hardware peripheral which can monitor changes
of a memory location (or a bit in MCS51 where bit address space is
available) and write out changes to a VCD file. It can also be used to
replay events from a VCD file in order to simulate external events.</li>
<li><a href="display.html">Peripheral displays</a>. <br>Textual
user intarfaces which can show information about a
peripheral. Some of them are interactive and can be used to
provide external input data for the simulated system (port,
uart).</li>
<li><a href="syntax.html">Command syntax</a>
and <a href="cmd.html">command
reference</a>, <a href="syntax.html#expr">expressions</a>. <br>
The simulator can be controlled via a command line
interface. It accepts simple commands. </li>
</ul>
<p><b>Microcontroller specific features</b> </p>
<ul>
<li><a href="stm8/index.html">STM8</a></li>
</ul>
<h2><a name="dev">Developers</a></h2>
<ul>
<li><a href="testing.html">Regression Testing</a></li>
</ul>
<hr>
<table border="0">
<tbody>
<tr>
<td><a href="mailto:dr.dkdb@gmail.com"><img src="post.jpg"
border="0" align="top"></a></td>
<td><i>© 1997 Dániel Drótos</i> <br>
<a href="mailto:dr.dkdb@gmail.com">dr.dkdb@gmail.com</a></td>
</tr>
</tbody>
</table>
</body>
</html>
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