HP 15c CE : decoding / encoding Voyagersave files

[Bikeman]

Now that Voyagersave works with the HP 15c CE..is there a little piece of software that can turn the dump files into human readable code, and vice versa?
Thx in advance

[AnnoyedOne]

(09-06-2024 12:28 PM)Bikeman Wrote:  ...is there a little piece of software that can turn the dump files into human readable code, and vice versa?

Not to my knowledge. SwissMicos has an webpage to decode/encode dumps from their DM15L. An offline program for the HP-15C CE is my wish.

https://technical.swissmicros.com/decoders/nut/

A1

[Bikeman]

(09-07-2024 02:23 PM)AnnoyedOne Wrote:  

(09-06-2024 12:28 PM)Bikeman Wrote:  ...is there a little piece of software that can turn the dump files into human readable code, and vice versa?

Not to my knowledge. SwissMicos has an webpage to decode/encode dumps from their DM15L. An offline program for the HP-15C CE is my wish.

https://technical.swissmicros.com/decoders/nut/

A1

Interesting. I looked around for code that translates from the raw dump file to meaningful Mnemonics and found this file :

https://github.com/brouhaha/voyager-lcd/...r_code.cpp

which seems to have the correct mapping. So it should not be too complicated to write such a tool after re-engineering the correct offsets etc.

HB

[Divasson]

There is a description of the file content here:

https://www.thecalculatorstore.com/c/hp1...ser-memory

And there is at least a project of a program to read and write HP15c CE memory files. I am testing a beta build of it!

[Bikeman]

(09-07-2024 08:45 PM)Divasson Wrote:  There is a description of the file content here:

https://www.thecalculatorstore.com/c/hp1...ser-memory

And there is at least a project of a program to read and write HP15c CE memory files. I am testing a beta build of it!

Nice! Thanks for the info, that means that I don't have to write such a thing myself :-) and can just wait for good things to happen. That said, if more beta testers are needed, I'd be more than happy to help.

Cheers
HB

[AnnoyedOne]

(09-07-2024 08:45 PM)Divasson Wrote:  There is a description of the file content here:

I'd seen that before but forgot where I saw it or who posted it.

FYI my original 2012 HP "Virtual Calculators" (HP-15C & HP-12C) stored memory in files 2040 bytes in size and not 2048. That is 255x8 and not 256x8. So 8 bytes are not used for whatever reason. However the VoyagerSave ones are 2048 bytes.

(09-07-2024 08:45 PM)Divasson Wrote:  And there is at least a project of a program to read and write HP15c CE memory files.

That's great news. I look forward to trying it.

Websites are great when the internet is accessible. Which it always is. Except when it isn't

A1

PS: I should note that the HP HP-12C Platinum virtual calculator appears to use the Sunplus SoC emulator under the hood. It saves a 18KB binary file containing who-knows-what. From what I've read the Generalplus and Sunplus SoC's are pretty much the same. Both use a masked-ROM for (fixed) firmware and have no means to read/write RAM.