Re: Amtech RF512C manipulates reading the ROM image with M-R

From: Spiro Trikaliotis <ml-cbmhackers_at_trikaliotis.net>
Date: Tue, 5 Oct 2021 22:01:27 +0200
Message-ID: <YVyvFzYmXHofylHB_at_hermes.local.trikaliotis.net>
Hello smf,

* On Mon, Aug 23, 2021 at 10:13:13AM +0100 smf wrote:
> I wonder why they spent the time to do this.

obviously for obsfuscating in a very simple way

> Having a way to dump roms by sending code that copies rom into ram a
> byte/page at a time and then reading from ram would probably be a good
> idea, in case someone else tries anything similar.

I have done this and got the whole ROM dump. In OpenCBM, I have it under
the directory opencbm/demo/downloadrom/.

I will give a more detailed analysis of it in another post. The changes
above are the core of it, though. Everything else makes it even more
"funny".

Regards,
Spiro

-- 
Spiro R. Trikaliotis
https://spiro.trikaliotis.net/
Received on 2021-10-05 23:00:03

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