Doors CS 7 is a shell for the monochrome TI-83 Plus and TI-84 Plus families of
graphing calculators. It was developed between 2001 and 2016 by Christopher
Mitchell under the alias "Kerm Martian", with help from countless programmers,
beta-testers, and users on Cemetech and elsewhere. It has been open-sourced
under the following license as a learning tool to other programmers.

More info: http://dcs.cemetech.net

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|        Doors CS 7 Source Code License             |
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|          Last Modified April 1, 2016              |
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Copyright (c) 2016, Christopher Mitchell
All rights reserved.

Redistribution and use in source and binary forms, with or without modification,
are permitted under the following conditions:
1. Redistributions of a substantial percentage of the source code (defined as 400
   or more lines of the original source) or that source code in binary form require
   express written permission from Christopher Mitchell, and must reproduce the
   above copyright notice, this list of conditions and the following disclaimer in
   the documentation and/or other materials provided with the distribution.
2. Redistributions of fewer than 400 lines of source must attribute the original
   project by name and author in source and (if applicable) in documentation, but
   may be redistributed under any BSD 3-clause-compatible, GPL-compatible, or All
   Rights Reserved license, except where exempted by written permission from
   Christopher Mitchell. Redistribution of a binary containing fewer than 400
   lines of source also requires only attribution.
3. The name of the copyright holder, the names of its contributors, and the
   name(s) under which the copyright holder(s) released this work may not be used
   to endorse or promote products derived from this software without specific
   prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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