copy license.txt

LICENSE

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+IMPORTANT NOTE:
+---------------
+
+As of May 2019, we, the PinMAME team, are working on replacing
+the inherited 'old MAME' license (listed directly below) by
+the 3-Clause BSD License (which is listed at the very end of this file),
+similar to the achievement of the current MAME team.
+
+Each source file that is already under the BSD-3-Clause will have its
+very first line marked with
+// license:BSD-3-Clause
+Every file that doesn't, will stay (for now) under the 'old MAME' license.
+
+
+===============================================================================
+===============================================================================
+===============================================================================
+
+
+I. Purpose
+----------
+   PinMAME is strictly a non-profit project. Its main purpose is to be a reference
+   to the inner workings of the emulated arcade machines. This is done for
+   educational purposes and to prevent many historical games from sinking into
+   oblivion once the hardware they run on stops working. Of course to preserve
+   the games, you must also be able to actually play them; you can consider
+   that a nice side effect.
+   It is not our intention to infringe on any copyrights or patents on the
+   original games. All of PinMAME's source code is either our own or freely
+   available. To operate, the emulator requires images of the original ROMs
+   from the arcade machines, which must be provided by the user. No portion of
+   the original ROM codes are included in the executable.
+
+II. Cost
+--------
+   PinMAME is free. Its source code is free. Selling either is not allowed.
+
+III. ROM Images
+---------------
+   ROM images are copyrighted material. Most of them cannot be distributed
+   freely. Distribution of PinMAME on the same physical medium as illegal copies
+   of ROM images is strictly forbidden.
+   You are not allowed to distribute PinMAME in any form if you sell, advertise,
+   or publicize illegal CD-ROMs or other media containing ROM images. This
+   restriction applies even if you don't make money, directly or indirectly,
+   from those activities. You are allowed to make ROMs and PinMAME available for
+   download on the same website, but only if you warn users about the ROMs's
+   copyright status, and make it clear that users must not download ROMs unless
+   they are legally entitled to do so.
+
+IV. Source Code Distribution
+----------------------------
+   If you distribute the binary (compiled) version of PinMAME, you should also
+   distribute the source code. If you can't do that, you must provide a link
+   to a site where the source can be obtained.
+
+V. Distribution Integrity
+-------------------------
+   This chapter applies to the official PinMAME distribution. See below for
+   limitations on the distribution of derivative works.
+   PinMAME must be distributed only in the original archives. You are not allowed
+   to distribute a modified version, nor to remove and/or add files to the
+   archive.
+
+VI. Reuse of Source Code
+--------------------------
+   This chapter might not apply to specific portions of PinMAME (e.g. CPU
+   emulators, or the files featuring already the new BSD-3-Clause) which bear
+   different copyright notices.
+   The source code cannot be used in a commercial product without the written
+   authorization of the authors. Use in non-commercial products is allowed, and
+   indeed encouraged.  If you use portions of the PinMAME source code in your
+   program, however, you must make the full source code freely available as
+   well (note again: not for the files featuring already the new BSD-3-Clause).
+   Usage of the _information_ contained in the source code is free for any use.
+   However, given the amount of time and energy it took to collect this
+   information, if you find new information we would appreciate if you made it
+   freely available as well.
+
+VII. Derivative Works
+---------------------
+   Derivative works are allowed, provided their source code is freely
+   available. However, these works are discouraged. PinMAME is a continuously-
+   -evolving project. It is in your best interests to submit your contributions
+   to the PinMAME development team, so they may be integrated into the main
+   distribution.
+   There are some specific modifications to the source code which go against
+   the spirit of the project. They are NOT considered a derivative work, and
+   distribution of executables containing them is strictly forbidden. Such
+   modifications include, but are not limited to:
+   - enabling games that are disabled
+   - changing the ROM verification commands so that they report missing games
+   - removing the startup information screens
+   If you make a derivative work, you are not allowed to call it PinMAME. You must
+   use a different name to make clear that it is a PinMAME derivative, not an
+   official distribution from the PinMAME team. Simply calling it PinMAME followed or
+   preceded by a punctuation mark (e.g. PinMAME+) is not sufficient. The name must
+   be clearly distinct (e.g. REPinMAME). The version number must also match the
+   number of the official PinMAME version from which you derived your version.
+
+
+===============================================================================
+===============================================================================
+===============================================================================
+
+
+The 3-Clause BSD License:
+
+Copyright (C) 1999-2021 PinMAME development team and contributors
+                        (unless specifically noted differently in a respective source file)
+
+Redistribution and use in source and binary forms, with or without modification,
+are permitted provided that the following conditions are met:
+
+1. Redistributions of source code must retain the above copyright notice,
+   this list of conditions and the following disclaimer.
+
+2. Redistributions in binary form 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.
+
+3. Neither the name of the copyright holder nor the names of its contributors may
+   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 WARRANTIES
+OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
+OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+OF SUCH DAMAGE.