ARJBeta source code public?

[leonard]

Hi!

Someone would like to make my LDOS demo system ( https://github.com/arnaud-carre/ldos ) linux compatible. Right now LDOS is using ArjBeta as packer because it's the best compression/ratio & depacking speed you could find. Problem is that it's a DOS executable ( so no linux port without source code )
Anyone know how to get in touch with the author ( Mr.Ni / TOS Crew ) to get the ArjBeta source code?

[ragnar76]

Never heard of ArjBeta but maybe unarj will do the job

[xdelatour]

Source code for decode functions of ARJ 9.96 by Mr.Ni is available on GitHub : https://github.com/ggnkua/Atari_ST_Sour ... !)/ARJ.996

[metalages]

Is it not possible to run arjbeta compressor using wine ?

I have made a direct port of Mr Ni ARJ (mode 4) depack code in C for PC here
https://github.com/gibs75/demOS/blob/ma ... N/ARJDEP.C

[mikro]

Anyone know how to get in touch with the author ( Mr.Ni / TOS Crew ) to get the ArjBeta source code?

He's around from time to time: memberlist.php?mode=viewprofile&u=1405

[gigabates]

Unfortunately it's the 'mode 7' version of the algorithm that's required and this seems to be only present the this specific beta version.

It is absolutely possible to run it via Wine, although you can no longer run it natively in MacOS now that 32bit support has been removed. It would be great if this algorithm could be properly preserved though, especially as it seems to be one of the most efficient around.

[troed]

There's always the option of decompiling the encoding method from the Atari binary. There are some people here who read 68000 ASM like if it was Basic And then re-implement.

Some work, unless Mr. Ni rather would let proper source reflect upon his great work of course

[prog99]

It is absolutely possible to run it via Wine, although you can no longer run it natively in MacOS now that 32bit support has been removed.

No it’s possible in wine to run 32bit binaries on macOS.

[mikro]

There's always the option of decompiling the encoding method from the Atari binary.

There's a third way, too -- check out PeP's crosstos: https://bitbucket.org/pep-entral/crosstos or insane's dsp cross dev tools: https://insane.tscc.de/

Both are based on an idea to have a small m68k/tos emulator (basically "atari wine") linked with the actual atari gemdos executable, making it look like a native windows/linux/mac application.

Pretty cool stuff.

[Cyprian]

in additional to CrossTOS and Runtos there is also ParaTos https://github.com/kelihlodversson/ParaTos

[leonard]

Anyone knows how to get in touch with the author, Mr.Ni?

[viking272]

Anyone knows how to get in touch with the author, Mr.Ni?

Anyone know how to get in touch with the author ( Mr.Ni / TOS Crew ) to get the ArjBeta source code?

He's around from time to time: memberlist.php?mode=viewprofile&u=1405

Did you send a private message via the AF account Mikro mentioned?

[leonard]

Did you send a private message via the AF account Mikro mentioned?

done!

[metalages]

There's always the option of decompiling the encoding method from the Atari binary. There are some people here who read 68000 ASM like if it was Basic And then re-implement.

Or use the "in between" method I have used here to reimplement from 68k
Allows you to implement in C without having to really understand the details or the algorithm

https://github.com/gibs75/demOS/blob/ma ... N/ARJDEP.C

[Nyh]

Hi,

I waked up after a long slumber as I got inspired and plan to improve on the arjbeta coding routines. I know where the source is, I have to check it whether it is in a working state.