1 Licence Agreement for AcornElectronCartridge
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3
4 Copyright (C) 2017 Paul Boddie <paul@boddie.org.uk>
5
6 This program is free software; you can redistribute it and/or modify it under
7 the terms of the GNU General Public License as published by the Free Software
8 Foundation; either version 3 of the License, or (at your option) any later
9 version.
10
11 This program is distributed in the hope that it will be useful, but WITHOUT
12 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
13 FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
14 details.
15
16 You should have received a copy of the GNU General Public License along with
17 this program. If not, see <http://www.gnu.org/licenses/>.
18
19 Notes on the licence choice and its application to this work
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21
22 Although the above statement refers to a "program", the licence itself uses
23 this term to refer to "any copyrightable work". In this case, the work
24 consists of schematics, circuit layout details and other data, and the
25 application of this licence is intended to govern the further distribution of
26 these materials in addition to any programs or software that might also be
27 included in the work.
28
29 When making hardware using the materials featured in this work, be sure to
30 provide corresponding sources (schematics, circuit layouts) or to make them
31 available on request, as indicated by the licence terms. Where a modified form
32 of the work is distributed, the relevant changes must be incorporated into the
33 source files that were actually edited to produce the desired, modified
34 result.
35
36 It is not generally acceptable to provide only modified output files when
37 distributing modified forms of this work. For example, it is not acceptable to
38 change the circuit layout file in a PCB editing program and then withhold this
39 modified file from recipients by insisting that only the Gerber files were
40 edited directly. Only if the Gerber files were actually edited directly may
41 modified versions of such files be considered source-level changes. Even then,
42 such modifications on files that are the product of other, more abstract,
43 files are not recommended as they rarely uphold a sustainable development
44 approach.
45
46 To conclude, when producing unmodified versions of this work, you should make
47 these materials available to recipients. When producing modified versions, you
48 should make the exact materials you used available to recipients. And you
49 should preserve the copyright and licensing notices present in this work
50 regardless of any modifications you make to the work.