Unprotecting Programs

[CECPC]

Thank you very much.

I consider simple algorithms like this, but there is some garbage in 0x40-0x80 position (data begins 0x80-) and I was assuming on debugging, that data begins on 0x40. This garbage misled me.

So, a very simple algorithm. I hope this "garbage" (like at the end) is really garbage and I could omit even if I write another different data to the DSK image again.

[CECPC]

It's no garbage, but part of the AMSDOS Header...

But the read could be made OK.

Mission accomplished  . On next version of CDTMaster, Protected BASIC will be copied OK from DSK to CDT (on tapes, Protected Basic is not masked).

[AMSDOS]

There was a RSX Library called Ten-Bars from AA56, which had 2 RSXes for Encoding or Decoding Data.
The user would enter a code number to Encode/Decode - along with the start/end address.

[Gryzor]

Thread resurrection FTW!


Ah, good thing too since Sourceforge didn't list any changes for the new CDTMaster version...