[NTLK] NewtonTalk Digest, Vol 86, Issue 14

Mark Kuberski berskyboy at gmail.com
Sun Feb 14 08:52:51 PST 2021

Hi Mathais,

I have the working copy that might have been the branch from a while ago.  I made some changes to it to make is run as follows:


Hello Everyone,
I was able to successfully build Einstein for iOS by following these instructions:
If nothing else, I can confirm that simply commenting out the ROM patch in
line 332 of 
eliminates the problem and makes the system boot normally again:
//TJITGenericPatchFindAndReplace gEnableSerialPort(0x00800634, 0x00900000,
//(KUInt32[]){2, 'extr', 0},
//(KUInt32[]){1, '~xtr'},
//“Enable 'extr' serial port.\n");

That you can find here:
https://github.com/pguyot/Einstein/issues/53#issuecomment-393250708 <https://github.com/pguyot/Einstein/issues/53#issuecomment-393250708>
I actually deleted the lines altogether. After doing this I had a successful build (although with many errors) and
was able to install Einstein on my iPad Pro. I will be uploading some videos of how Einstein preforms on the Onyx Boox Nova Pro and iPad later.
Cheers, Igor

So with this version I wonder if I can ADD the PCMCIA support that you are adding to your current copy?  I can also try and run and compile your matt2020 version and see if I can get it to compile and launch.  I’m really excited to be able to add PCMCIA cards, (basically MORE data to Einstein.).
Failing ALL that, could it be possible to UP the RAM on Einstein to say 16MB versus the 8MB currently?
Another thing, I’ve been watching videos to get up to speed on Xcode and the like, is Einstein built from C++ from scratch, or is is just running in an emulated way from a kernel added?  Like for instance all the functionality of the Newton Screen, the folders, the trash can, was that all made from scratch, or was it from an image or emulated file of Newton OS?
And is there a difference between Objective C and C++?
I think getting my feet wet into Xcode is a good COVID hobby!  ;)


> On Feb 14, 2021, at 9:01 AM, newtontalk-request at newtontalk.net wrote:
> Message: 7
> Date: Sun, 14 Feb 2021 10:13:25 +0100
> From: Matthias Melcher <mm at matthiasm.com <mailto:mm at matthiasm.com>>
> To: newtontalk at newtontalk.net <mailto:newtontalk at newtontalk.net>
> Subject: Re: [NTLK] Einstein on iOS
> Message-ID: <34f9aabc-6194-0608-6103-5fe8ca5f2154 at matthiasm.com <mailto:34f9aabc-6194-0608-6103-5fe8ca5f2154 at matthiasm.com>>
> Content-Type: text/plain; charset=utf-8; format=flowed
> Hmm, the github page https://github.com/pguyot/Einstein <https://github.com/pguyot/Einstein> contains the 
> original code by Paul Guyot. I have not touched the master branch much 
> in the last years. The master branch also contains the (still?) working 
> iOS code from eleven years ago. It was last touched by Steven Frank 
> maybe six years ago.
> My code (serial port, PCMCIA code, cross platform user interface based 
> on FLTK, new Android code) is in a branch named "matt2020".
> I have tried to keep the branches in sync, and I have moved changes that 
> others made in "master" over to "matt2020" when it was feasible. That 
> means that my code probably no longer works at all on iOS, but the 
> original iOS code, that you may get to run again, is quite different to 
> my branch of Einstein.
> Sorry about that. Branching is never a good solution. iOS has changed so 
> much over the years. My original port was done with minimal knowledge, 
> and after Apple rejected Einstein from the Store, I never looked into 
> iOS development again.
> It would be really cool to get Einstein on iOS working again though!

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