Subject:
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RE: 8450 Mission / Cybermaster expansion
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Newsgroups:
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lugnet.robotics
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Date:
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Fri, 5 Nov 1999 15:35:53 GMT
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Original-From:
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Laurentino Martins <[lmartins@]IHateSpam[marktest.pt]>
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Viewed:
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636 times
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At 15:19 05-11-1999 Friday , Ralph Hempel wrote:
> > > 1. Is there a disassembly of the Cybermaster ROM?
> >
> > Sorry, nobody ever accessed it - it's ROM.
> > Some of it must be similar to MindStorms.
>
> Yes, but so is the ROM in the RCX. The trick was to figure out the upload
> sequence (via the serial link) and then Kekoa figured out the format
> of the packet.
>
> I'll have to look at the Cybermaster serial code in NQC, but if there
> is an ability to place arbitrary bytes in memory, and run code from
> an arbitrary address (or fixed somewhere in the limited RAM) then it
> is possible to make an umbilical FORTH that does NOT use the standard
> opcodes...
No, the OPCODES are interpreted by the firmware, not the ROM code.
The only thing hat was decoded (AFAIK) was the MindStorms firmware.
And it was only decoded because incidentally it was in a separate file in the MindStorms CD, perfectly labeled like if someone wanted it to the cracked.
Once the firware is inside the bot, there is no way to get it back.
Laurentino Martins
[ mailto:lau@mail.telepac.pt ]
[ http://www.terravista.pt/Enseada/2808/ ]
Neither technology nor efficiency can acquire more time for you,
because time is not a thing you have lost. It is not a thing you ever had.
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Message has 1 Reply:
 | | RE: 8450 Mission / Cybermaster expansion
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| (...) OK, i guess we need to get terminology straight. The ROM is the masked code in the RCX/Scout/Cybermaster. It was "looked at" because I'm pretty sure Kekoa wrote a little dump routine and loaded it into the RCX like replacement firmware - in (...) (25 years ago, 5-Nov-99, to lugnet.robotics)
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Message is in Reply To:
| | RE: 8450 Mission / Cybermaster expansion
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| (...) And minus a downloadable firmware. (...) From the PC point of view, the tower behaves like the MindStorms tower. The CyberMaster can not send messages like the MindStorms, but the PC can query literally everything in the CyberMaster at any (...) (25 years ago, 5-Nov-99, to lugnet.robotics)
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