Convert *.rxe files

[andrea-povo-uni]

Hi,
I have a problem of conversion. I need to reconvert a "file_name.rxe" into "file_name.nxc". Is it possible?
I need this option because I've lost my original nxc files after a system crash. It would be great if I could pick back my programs from my nxt.

Thanks.

[m-goldberg]

Sorry, but it is not possible because any particular .rxe file could be generated by many different .nxc files. The .nxe file doesn't contain enough information to recover the .nxc code that generated it.

[markcrosbie]

All is not lost however, because you can use the NXC compiler to decompile the .rxe file into the opcodes used by the NXT using the -x option to nbc. Alternatively John has provided RXEDumper on his website http://bricxcc.sourceforge.net/utilities.html that will decompile an rxe file. It will not give you the original nxc source code, but it will be close enough and if you remember the original source you can figure it out.

Of course, you could also investigate any of the many available undelete utilities to try and recover the original nxc file!

Mark

[afanofosc]

You may also want to consider using a memory stick or SD card to keep your NXT code on as that is less likely to suffer from a system crash, and possibly zip up your source code folder periodically so that you have backup copies in case something does corrupt your files.

While the RXE decompilation tool is nice and I use it fairly regularly it may be hard to follow for someone who has not read assembly code much. I encourage you to try to develop some familiarity with NBC since it can be very useful to know when using NXC. Even if you are familiar with NBC, though, the decompilation still loses variable names and named constants will show as their numeric values so it definitely takes a bit of practice to be able to plow through decompiled NBC code.

John Hansen

[muntoo]

Of course, you could also investigate any of the many available undelete utilities to try and recover the original nxc file!

Right. May want to check out Recuva by Piriform, the creators of CCleaner* and Defraggler.

(Be sure to use Recuva before defragmenting or cleaning up your hard disk. Try to recover your file ASAP, or it may be lost forever.)

*the best [free] system maintenance tool ever developed for Windows

[nxtreme]

I like Pandora as a undelete tool. Although, if this Recuva program is made by Piriform I might just have to try it out to see which I like better. I agree with Muntoo here, CCleaner is the best when it comes to computer maintenance software.

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[andrea-povo-uni]

Thank you for the answers.
I have recovered almost all the important parts of my work.