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44 lines
2.0 KiB
Plaintext
44 lines
2.0 KiB
Plaintext
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Although Amstrad is the current propietary of the copyright of the original
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ZX Spectrum ROMs, they have kindly given their permission for its
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redistribution with Spectrum emulators.
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These are the conditions put by Amstrad to use and distribute the ROM files,
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extracted from
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http://groups.google.com/group/comp.sys.amstrad.8bit/msg/c092cc4d4943131e
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--------------------------------------------------------------------------
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1) What exactly do you have to do to use Sinclair ROMs in an emulator, such
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as acknowledgements etc?"
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Amstrad are happy for emulator writers to include images of our copyrighted
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code as long as the (c)opyright messages are not altered and we appreciate
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it if the program/manual includes a note to the effect that "Amstrad have
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kindly given their permission for the redistribution of their copyrighted
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material but retain that copyright".
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"2) Can you charge a shareware fee for an emulator that uses the Sinclair
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ROMs?"
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No. No one should be charging for the ROM code because (as a result of the
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point above) there are loads of freely available images anyway. If I ever
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thought someone was charging for the ROM images then I'd make them available
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as a free download on the www.amstrad.com web site. Naturally I imagine that
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some emulator writers want to charge a shareware fee for the code they have
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written and we have absolutely no problem with that as long as they aren't,
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in any sense, charging for the parts of the code that are (c)Amstrad and (c)
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Sinclair.
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"3) Can you modify the ROMs, for instance to enable tape loading and saving,
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and if so what are the requirements?"
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The ROM code is simply a tool to let the emulator writers make a program
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that works as close to the original machine as possible. If they choose to
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modify the behaviour in any way then that's entirely up to them (I guess you
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could say that that is exactly what an emulator IS doing (ie modifying the
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screen output and keyboard input to go via the PC bits)!!)
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"4) Can you distribute modified ROMs?"
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If you like (with that (c) proviso).
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