Re: Non-6502 ROM used for software key?

From: Peter Bortas <bortas_at_gmail.com>
Date: Thu, 5 Apr 2018 17:31:50 +0200
Message-ID: <CA+NK+ADE877C3+6XCeZQib0RvMJo9hZFqnq4hnn=hsR9iQV-rQ@mail.gmail.com>
On Sun, Apr 1, 2018 at 9:56 PM,  <silverdr@wfmh.org.pl> wrote:
> Let's take the 1541 DOS for example:
>
> http://zimmers.net/anonftp/pub/cbm/firmware/drives/new/1541/1541-e000.901229-05.bin

So, fun fact that I learned trying to do this: Binary Ninja does not
support exporting the linear disassembly as a text file right now. The
people that regularly use it are mostly security researchers, and they
need things like in place binary patching and recompiling, but not the
assembler in text form. You can export the function graphs as SVG,
which is neat but not conducive to text communication. I've filed an
RFE* for this.

* https://github.com/Vector35/binaryninja-api/issues/1011

So, for anyone that is still interested, here's a quick batch of
screenshots of parts of 1541--e000.901229-05.bin disassembled. Where
entry points have descriptive names instead of just being named by
addresses it's because I did that while looking at them. BN does not
have the magic ability to derive function names from nothing.

https://imgur.com/a/af21T

The first five images are centered on the same function with different
visualization options turned on and off. The rest are some random
functions that avoid the ones where I have named symbols. If you have
a low resolution display you might have to download the images to be
able to scroll through them. I just discovered that imgur zooms in if
you click on an image, but it doesn't seem to allow zooming in to 1:1
unless you have a large enough browser window for that.

Regards,
-- 
Peter Bortas
Received on 2018-04-05 18:00:03

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