Programming, couple questions

[debrouxl]

I've never had a serious look at BESTAARM.ROM (that is, beyond reading the list of strings produced by `strings`).

On the TI-Nspire platform, historically, before an emulator was made, there have been two methods for decrypting the OS:
* a standalone decrypter using the standard implementation of the Blowfish cipher, which is the most scriptable way, provided someone can find the key;
* manual use of GDB's sim target: http://www.yaronet.com/posts.php?sl=0&s=...&h=116#116 .
If there's LZMA-compressed data in BESTAARM.ROM, both methods may be usable: extracting the input data and passing it to a generic LZMA decompressor, or running the calculator-side decompressor function in GDB's sim target.