File Export
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Instead of QR codes, why not use audio?
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@toxibunny The Sinclair Spectrum used audio to send/receive data to a tape recorder back in the eighties. 2000 Hz for a 1 and 1000 Hz for a zero I believe. There is a Wiki page describing it in detail. The problem is the receiving side of things.
I used to have a copy of "The Spectrum Rom Disassembled", a book which contained a disassembled listing for the main rom with a full explanation for each part - including the tape interface code. Some game publishers had an interesting protection scheme which involved summing all the bytes in the opening screen and xor'ing the result with the incoming data to produce the run code. This was easily overcome by writing a small piece of your own code somewhere and doing the xor etc before the main data came in. Cat and mouse. Whatever was tried was cracked by someone. Happy days.
Went off track there a bit. Anyway, audio is probably too difficult for file transfer. -
@faz808 I did it by hand as well. So far all I have done is look at the wikipedia page and some code I found on the internet. I am quite interested in doing it if only as an academic exercise. It seems to get more complicated with the later versions (and bigger messages). Perhaps I will see if I can get a small one working first and see where it goes from there.
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At least one of the methods being discussed was already rejected (not internally). I wish I could say more but it's under NDA. I'm genuinely not trying to be awkward or funny or anything there but we aren't always allowed to go into detail.
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@faz808 i agree to this as a systemsintegrator its very important to have a external backup.For example if there is a fire in a datacenter.
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I wish we could get programmatic access to Fuze's clipboard. That would make any attempts to write our own export functions (be it QR codes, sound, or whatever) more useful, and also it would open up the possibility of writing one's own music editors, sprite editors, etc., and then use the generated data in another program.
Any plans for this in the future?
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@pianofire With a joint effort I think this may be doable. Back to the Wiki page ...
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Not sure if we're allowed to give external links but this looks interesting and may be the answer...
https://www.thonky.com/qr-code-tutorial/format-version-information
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@vinicity Yes this is on the radar but not for the current patch
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@faz808 Yes this looks spot on. We don't normally encourage external links but when it is to provide answers to questions and useful resources it is fine.
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@faz808 so it breaks down functionally into:
Data Analysis
Data Encoding
Error Correction Coding
Structure Final Message
Module Placement in Matrix
Data Masking
Format and Version InformationDo you have any preference? The data analysis looks fairly straightforward. Are we even going to bother with Kanji at this point?
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@pianofire That is awesome!
Actually it would be nice to have access to some sort of roll-out plan? To know which features are coming and approximately when?
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Good question. Is simple alphanumeric mode going to any easier?
Looking at the article, I think the first step might be to write a binary - hex/hex - binary function. This would confirm each step of the authors calculations. -
@faz808 Well I have already written hex to decimal and (vice versa) https://fuzearena.com/forum/topic/965/hexadecimal-conversion-functions
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@vinicity said in File Export:
@pianofire That is awesome!
Actually it would be nice to have access to some sort of roll-out plan? To know which features are coming and approximately when?
That would be wonderful and even if some of the things were way late or never even turned up, it would be still better than not having a clue as we are now.
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@SteveZX81 It is difficult to raise people's expectations and then not deliver. Anyway it is not up to me
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@faz808 OK I have done the data analysis phase (except for Kanji). I have shared it but it is subject to approval. If you add me as a friend you should be able to see it before approval (SW-5218-2817-5887)
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Fast track approval! It is NXK7DXUMMN
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@pianofire That was fast ! The next step could be trickier ...
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This could prove a major stumbling block - Error Correction Coding.
