| Re: Reading the hex data from an Atari 800 cartridge. [message #303051] |
Thu, 23 July 2015 20:54  |
Bill Garber
Messages: 507
Registered: December 2011
Karma: 0
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Senior Member |
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<tomcees_calculator@yahoo.com> wrote in message news:21
7264e8-7600-4112-b63e-e1c99870b61e@googlegroups.com...
> I would like to read the contents of an Atari 800 cartridge
> (for instance Pac Man, or BASIC).
>
> Certainly, if I simply start up the system with the cart in the
> Left Hand slot, the OS will treat it appropriately and run it.
>
> Is there a simple method (that someone has proven and used) to
> 'fool' the system that the cart is not there and then let me
> read the cart contents (via a ML or other compiled program).
>
> Or, possibly, with BASIC in the LH slot, install the cart to be
> 'read' into the RH slot and read it from there (I understand of
> course that my code hat reads the cart must be adjusted for the
> RH slot).
>
> Any recommendations?
>
> Thank you in advance for any helpful advice,
> TomC
From what I 'vaguely' recall, there is a tilting of the cartridge
that you want to read to give the cart power, but not allowing it
to be read in, then after powering on, you gently attempt to push
the cart the rest of the way in, and you should be able to read
the data from it at $A000-$BFFF, or was it $8000-$9FFF, not sure.
Trying to imagine, yes, the right cartridge slot would be $8000.
I also remember, vaguely, that it was not an easy task, either.
Bill Garber - I love my
C1 D0 D0 CC C5 A0 C9 C9 C7 D3
http://www.sepa-electronics.com
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| Re: Reading the hex data from an Atari 800 cartridge. [message #303053 is a reply to message #303051] |
Tue, 28 July 2015 15:35  |
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Originally posted by: Ryan Collins
tomcees_calculator@yahoo.com wrote:
> I would like to read the contents of an Atari 800 cartridge (for instance Pac Man, or BASIC).
>
> Certainly, if I simply start up the system with the cart in the Left Hand slot, the OS will treat it appropriately and run it.
>
> Is there a simple method (that someone has proven and used) to 'fool' the system that the cart is not there and then let me read the cart contents (via a ML or other compiled program).
>
> Or, possibly, with BASIC in the LH slot, install the cart to be 'read' into the RH slot and read it from there (I understand of course that my code hat reads the cart must be adjusted for the RH slot).
>
> Any recommendations?
>
> Thank you in advance for any helpful advice,
If you want to spend some money, you can use the Atarimax USB programmer to read carts:
http://atarimax.com/flashcart/documentation/
He also sells adapters so you can dump other carts, although, since almost every cart
has been dumped this is probably more for an educational exercise.
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