Source code of MARS Assembler
First commit of the 4.5 version (latest version available)
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<META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=iso-8859-1">
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<html>
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<title>MARS Acknowledgements</title>
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<body>
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<center>
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<h3>MARS Acknowledgements</h3>
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<font size="-1">Updated 18 August 2014</font>
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</center>
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<p>
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Pete and Ken would like to acknowledge the many helpful contributors to MARS.
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It has succeeded beyond our wildest expectations and for this we are most grateful.
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Its success would not be possible without your feedback, suggestions and assistance!
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<p>
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We are pleased to recognize these contributions to release 4.5:
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<ul>
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<li><b>Torsten Mahne</b>, <b>Umberto Villano</b> and others who took care of the
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bug with certain European keyboards that require an Alt key combo to form
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essential MIPS assembly characters like $ and #. I had no means of testing it.
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</li>
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<li><b>Eric Wang</b> at Washington State University, who suggested adding
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cursor positioning to the Keyboard and Display MMIO Simulator tool.
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</li>
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<li><b>Marcio Roberto</b> and everyone else involved in the development of MIPS X-Ray tool, which has been
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around for several years but only now added to the release. Sorry for the delay.
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</li>
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</ul>
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</p>
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<p>
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We also appreciate the contributions others have made to previous releases:
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<ul>
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<li><b>Carl Burch</b> of Hendrix College, who developed the mechanism for
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simulating the execution of straight binary code. Previously, execution was based on
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ProgramStatement objects generated by the assembler. This, combined with the added capabilities
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to write to the text segment and
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branch/jump into the data segment at runtime, permits one to produce self-modifying
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programs, simulate buffer overflow attacks, and the like.
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</li>
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<li><b>Tom Bradford</b>, <b>Slava Pestov</b> and others, who developed the jEdit Syntax Package (syntax.jedit.org)
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at the heart of the syntax-aware color highlighting editor. It was old but the licensing was right and it was
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written for embedding into Java applications.
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</li>
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<li><b>Mohammad Sekhavat</b> from Sharif University in Tehran, who developed the
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macro capability.
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</li>
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<li><b>Greg Gibeling</b> of UC Berkeley, who introduced capabilities into his customized version
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of MARS that have subsequently been expanded and integrated into our release.
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These include the ability to dump MIPS memory contents to file and parser improvements
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to distinguish signed from unsigned hexadecimal constants.
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</li>
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<li><b>Eric Shade</b> of Missouri State University, who suggested several improvements to
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pseudo-instruction expansions such as elimination of internal branches
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and improvements to the sign-extended loading of 16-bit immediate operands.
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</li>
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<li><b>Saul Spatz</b> of the University of Missouri Kansas City, who noticed and provided a solution
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for a flaw in the calculation of byte-oriented addresses in the simulated MIPS memory stack segment.
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He has also suggested several improvements that we have implemented.
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</li>
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<li><b>Zachary Kurmas</b> of Grand Valley State University, who suggested several bug fixes and
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who encorporated MARS into his own successful <tt>JLSCircuitTester</tt> digital logic simulator software.
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</li>
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<li><b>Felipe Lessa</b>, who contributed the Instruction Counter tool and suggested a solution
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for the problem of MARS inability to launch when stored in a directory whose name
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contained non-ASCII characters.
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</li>
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<li><b>Carl Hauser</b> of Washington State University, who pointed out and provided a solution to
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a flaw in the Keyboard and Display Simulator Tool in how it used the Exception Level bit in the
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Coprocessor1 Status register. Also thanks to <b>Michael Clancy</b> of UC Berkeley for pointing out a flaw in the
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tool's mechanism for resetting the Transmit Ready bit when operating in kernel memory.
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</li>
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<li><b>Dave Poplawski</b> of Michigan Technological University, for his assistance in working through
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some issues with signed/unsigned constants and with output redirection.
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</li>
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<li><b>Ingo Kofler</b> of Klagenfurt University in Austria, who contributed two Tools: a tool
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to collect Instruction Statistics, and a tool to simulate branch prediction
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with a Branch History Table.
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</li>
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<li><b>Brad Richards</b> and <b>Steven Canfield</b> from the University of Puget Sound, for providing
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a technique that improved file loading performance.
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</li>
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<li><b>Jan Schejbal</b> and <b>Jan-Peter Kleinhans</b> of Darmstadt technical university in Germany, for
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suggesting and providing a patch to display Run I/O text in a constant-width font.
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</li>
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<li><b>Max Hailperin</b> of Gustavus Adolphus College, who made several
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improvements to the MIDI syscalls.
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</li>
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<li><b>David Patterson</b> of UC Berkeley, for making time in his busy schedule for Ken's demo of MARS.
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</li>
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<li><b>Denise Penrose</b> and <b>Nate McFadden</b> of Morgan Kaufmann Publishers, for their
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assistance as editors of
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<i>Computer Organization and Design</i>.</li>
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<li><b>Ricardo Pascual</b> of University of Murcia in Spain, who contributed the code to permit input syscall
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keystrokes to be typed directly into the Run I/O window instead of through a popup dialog.
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</li>
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<li><b>Didier Teifreto</b> of Université de Franche-Comté in France, who contributed the Digital Lab Sim tool.
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</li>
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<li><b>Facundo Agriel</b> of the University of Illinois at Chicago, who added font selection to the Keyboard and
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Display Simulator tool.
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</li>
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<li>Patrik Lundin for contributing the code to add scrolling to the keyboard and display simulator.
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</li>
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<li>Otterbein students Robert Anderson, Jonathan Barnes, Sean Pomeroy and Melissa Tress
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for contributing the new command-mode options for specifying MARS exit codes when
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assembly or simulation errors occur. This was sparked by a comment from
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Zheming Jim of the University of South Carolina.
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</li>
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<li>The unknown audience member at our SIGCSE 2006 conference presentation,
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who suggested that MARS would also be useful running in the background
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in support of an external application. This led directly to our development of the Tools
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framework and API that truly distinguishes MARS from all other MIPS simulators.
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</li>
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</ul>
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</p>
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<p>
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We would also like to recognize many others who have contacted us to point out bugs, suggest improvements, or engaged us in
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interesting correspondence. The bugs have been addressed and the
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improvements either implemented or added to our wish list. Correspondents include:
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William Bai,
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Miguel Barao,
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James Baltimore,
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Jared Barneck,
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Bruce Barton,
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Rudolf Biczok,
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Battista Biggio,
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Carl Burch,
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Ram Busani,
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Gene Chase,
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Lucien Chaubert,
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David Chilson,
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Sangyeun Cho,
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Donald Cooley,
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Bernardo Cunha,
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John Donaldson,
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Abhik Ghosh,
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Michael Grant,
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Thomas Hain,
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John Ham,
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Kurtis Hardy,
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Justin Harlow,
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David Harris,
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Bill Hsu,
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Pierre von Kaenel,
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Amos Kittelson,
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klondike,
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Geoffrey Knauth,
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Sudheer Kumar,
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Yi-Yu Liu,
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Jeremie Lumbroso,
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Paul Lynch,
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Richard McKenna,
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William McQuain,
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Adam Megacz,
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Alessandro Montano,
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Judy Mullins,
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William Obermeyer,
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Ivor Page,
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Gustavo Patino,
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Christoph von Praun,
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Klaus Ramelow,
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David Reimann,
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Patricia Renault,
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André Rodrigues,
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Robert Roos,
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Joseph Roth,
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Marco Salinas,
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Peter Schulthess,
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Ofer Shaham,
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Scott Sigman,
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Sasha Solganik,
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Timothy Stanley,
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Gene Stark,
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Josh Steinhurst,
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Michelle Strout,
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Didier Teifreto,
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Mitchell Theys,
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Massimo Tivoli,
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Dwayne Towell,
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Duy Truong,
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Judah Veichselfish,
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Vineeth,
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Daniel Walker,
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Janyce Weibe,
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Ben West,
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and
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Armin Zundel.
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</p>
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The Mars.jar file contains all source code and, starting with Release 3.6,
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the files necessary to generate a new jar file should you wish to make changes to
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the source and repackage it for your own use. Let us know if you do this, so we
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can consider your changes for the general release.
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<p>
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Thanks to everyone who uses MARS. Keep those cards and letters coming!
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</body>
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</html>
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