[Coco] ROM Dump

[David Ladd]

On Mon, Apr 5, 2021 at 10:52 PM Melanie and John Mark Mobley <
johnmarkmelanie at gmail.com> wrote:

> All,
>
> I wrote a program to do a ROM Dump and print the data as simi-graphics.
> For x=32768 to 65535
> R=peek(x) or 128
> Print chr$(r);
> Next x
> End
>
> Memory Map
> 32768 to 49151 BASIC ROM
> 49152 to 65279 ROM PAK or DOS
> 65280 to 65519 IO
> 65520 to 65535 Vector Table (reset vector and such)
>
> No ROM PAK or Floppy drive controller is installed.
> So what am I reading at address 49152 to 65279?
>

On a CoCo 3 you will see what ever Super Basic patched in those areas if
anything.

On a CoCo 1 or 2 those areas will depend on the system as far as
capacitance goes on the DATA lines when the read was done.  At least if
nothing is plugged into the cart slot.



>
> John Mark Mobley
>
>
>
> --
> Coco mailing list
> Coco at maltedmedia.com
> https://pairlist5.pair.net/mailman/listinfo/coco
>

Sincerely,
David Ladd
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