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The guide to UDO: Installing the DOS version
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<h1><a name="Installing_20the_20DOS_20version">Installing the DOS version</a></h1>
<p>You need a 80386 processor at least to run UDO. UDO doesn't run on
80286 processors or processors of an older type and I won't compile
versions for these old dinosaurs.
</p>
<p>If you find a program or batch file named <tt>SETUP</tt> or
<tt>INSTALL</tt> in the archive please start it and follow the
instructions. If the installation fails, please go on reading this
chapter.
</p>
<p>It failed? Ah, you haven't tested it yet? That's fine that you
want to read all the text before you want to experiment. <TT>;-)</TT>
</p>
<p>Unfortunately the installation of the DOS version is not trivial.
Er, I think it is trivial but the experiences of the past have shown
me that lots of people have problems installing UDO on a DOS PC
although the installation is very simple.
</p>
<p>If you haven't heard anything of RSX and EMXRT until now I
recommend to read the following two chapters completely. If UDO still
refuses to run you have done something wrong or I haven't described
the installation process detailed enough.
</p>
<p>If you already know what RSX and EMXRT are good for, because you
are using emTeX or the GNU utilities) you can skip the next chapter.
</p>
<ul class="content">
<li><a href="#Installation_20of_20RSX_20and_20EMXRT">Installation of RSX and EMXRT</a></li>
<li><a href="#Installation_20of_20UDO386.EXE">Installation of <tt>UDO386.EXE</tt></a></li>
</ul>
<br>
<h3><a name="Installation_20of_20RSX_20and_20EMXRT">Installation of RSX and EMXRT</a></h3>
<p>OK, you haven't heard anything of RSX and EMXRT yet. That's not a
shame. But if you won't know what RSX and EMXRT are good for after
having read this chapter, you should feel ashamed. And if some RSX or
EMXRT experts recognize some stupid stuff I should feel ashamed.
</p>
<p>Well, let's go...
</p>
<p>UDO was compiled with the GNU C Compiler (GCC), strictly speaking
with EMX-GCC (ported by Eberhard Mattes). GCC is originally a Unix
software and Unix has always used 32 bit software. Thus, the EMX-GCC
makes 32 bit software, too. And now we have a problem, because you
cannot run 32 bit software with DOS without using any tricks.
</p>
<p>EMXRT and RSX are responsible for these tricks. These
"drivers" allow UDO to allocate huge blocks of memory.
Because you have to use different tricks for DOS and Windows there are
existing two different "drivers": EMXRT for DOS and OS/2,
RSX for Windows.
</p>
<p>Please note:
</p>
<ul>
<li> For running UDO exclusively in a DOS box with Windows 3.11/95 you
will need only RSX. RSX, written by Rainer Schnitker, is a DPMI server
for programs that were compiled with EMX-GCC or DJGPP.
<br>
</li>
<li> For running UDO under OS/2 or exclusively under DOS (without
Windows) you will need only EMXRT. EMXRT ("emx runtime
environment"), written by Eberhard Mattes, is needed for running
EMX-GCC compiled software.
<br>
</li>
<li> If you don't install neither RSX nor EMXRT there will be no
chance to run UDO. It will simply print an error message.
<br>
</li>
<li> The installation of RSX and EMXRT is very easy. Just extract the
archives with paths and enter two lines into the <tt>AUTOEXEC.BAT</tt>.
<br>
</li>
<li> RSX and EMXRT are no resident drivers. UDO will start them
automatically. After UDO has finished the drivers terminate, too.
<br>
</li>
<li> If you haven't received the drivers (you haven't
<tt>EMXRT.ZIP</tt> or <tt>DPMIGCC5.ZIP</tt>/<tt>RSX503RT.ZIP</tt>) and
the UDO distribution doesn't contain the archives you can download
them or you can request them by mail:
<br>
<table>
<tr><td nowrap valign="top">FTP:</td><td valign="top"> Current version of EMXRT can be downloaded from
<tt>ftp.uni-stuttgart.de/pub/systems/os2/emx-0.9b/</tt>
<br>Current versions of RSX can be downloaded from:
<tt>ftp.uni-bielefeld.de/pub/systems/msdos/misc/</tt>
</td></tr>
<tr><td nowrap valign="top">Modem:</td><td valign="top"> You can download the files from the BBS called "Maus MK2
Iserlohn-Kalthof" (+49 2371 944925) from the
"Gruppenprogrammteil UDO.PUB".
</td></tr>
<tr><td nowrap valign="top">Mail:</td><td valign="top"> Just send me a formatted floppy disk and a readdressed envelope
and 2 DM (or a convertible amount of money) for postage.
</td></tr></table>
</li>
</ul>
<p>Let's talk about the installtion of RSX and EMXRT. Of course, you
can install only one of the drivers if you run exclusively DOS or
Windows. The following descriptions tells you how to install both
drivers.
</p>
<p>In first place you have to extract the archives. Stop! It's
importand that you extract the archives with paths! If you don't let
your archiver generate paths nothing will function. I recommend to use
<tt>UNZIP.EXE</tt>. If you extract the RSX archive a directory
`<tt>RSX\</tt>' will be saved. If you extract EMXRT a directory
`<tt>EMX\</tt>' will be saved. If you don't find these directories
something went wrong.
</p>
<p>You can move the directories to any position of your file system.
I recommend to move them to `<tt>C:\DRIVERS</tt>'. If this directory
doesn't exist you have to create one.
</p>
<p>After having extracted the archives you have to edit your
<tt>AUTOEXEC.BAT</tt> and to insert the following lines. If you have
only installed EMXRT, insert the lines below "Only EMXRT"
and so on:
</p>
<ul>
<li> Only EMXRT:
<br>
<pre>SET EMX=C:\DRIVERS\EMX\BIN\EMX.EXE
</pre>
</li>
<li> EMXRT and RSX:
<br>
<pre>SET EMX=C:\DRIVERS\EMX\BIN\EMX.EXE
SET RSX=C:\DRIVERS\RSX\BIN\RSX.EXE
</pre>
</li>
<li> Only RSX:
<br>
<pre>SET EMX=C:\DRIVERS\RSX\BIN\RSX.EXE
SET RSX=C:\DRIVERS\RSX\BIN\RSX.EXE
</pre>
</li>
</ul>
<p>If RSX and EMXRT haven't been installed in `<tt>C:\DRIVERS</tt>'
you have to adjust the upper paths.
</p>
<p>I think you already know that changes of the <tt>AUTOEXEC.BAT</tt>
are activated when rebooting your computer. Before you reboot your
computer I just want to summarize what you have done until now: you
have installed some files and you have inserted one or two lines into
your <tt>AUTOEXEC.BAT</tt>. That's all.
</p>
<p>And now, reboot your computer.
</p>
<h3><a name="Installation_20of_20UDO386.EXE">Installation of <tt>UDO386.EXE</tt></a></h3>
<p>Let's talk of the easier part of the installation of UDO. The
abridged version: extract the archive and add the UDO directory to
<tt>PATH</tt> of your <tt>AUTOEXEC.BAT</tt>.
</p>
<p>But once more I will describe you the installation step by step:
</p>
<ol>
<li> Extract the UDO archvie <b>with</b> paths. If you won't find a
directory named `<tt>UDO\</tt>' something went wrong. If you will find
it move the directory named `<tt>UDO\</tt>' to any position of your
file system. The following descriptions assume that you move
`<tt>UDO\</tt>' to your root directory.
<br>
</li>
<li> Now you have to let DOS find the executable:
<br>
<ol type=a
>
<li> Edit the <tt>AUTOEXEC.BAT</tt> and insert the following line:
<br>
<pre>SET PATH=%PATH%;C:\UDO\BIN
</pre>
<br>This meand that DOS and Windows will look for `<tt>UDO386.EXE</tt>'
in this directory, too, when you have rebootet your computer.
<br>
</li>
<li> If you don't like to extend your <tt>PATH</tt> you can move the
executables of `<tt>C:\UDO\BIN</tt>' to any directory that's already
listet in <tt>PATH</tt>. Using this method you don't have to reboot
your computer.
<br>
</li>
</ol>
</li>
</ol>
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