[Coco] CoCoSDC and Extended ADOS3

Arthur Flexser flexser at fiu.edu
Mon Nov 28 22:00:08 EST 2016

Darren, just wanted to give you some information about how Extended
ADOS-3 works, so you can judge if there's any fundamental
incompatibility that would rule out Ron's goal of getting Ext. ADOS-3
working with the CoCoSDC.

Extended ADOS-3 can only run from a 16K ROM;  there's no way to test
it running from RAM.  That's because it uses the space above $E000
both in RAM and in ROM mode, switching between Super Extended Basic in
RAM and Ext. ADOS-3's upper ROM bank as needed.  Will that scheme work
with the CoCoSDC?


On Mon, Nov 28, 2016 at 12:45 PM, Darren A <mechacoco at gmail.com> wrote:
> On Sun, Nov 27, 2016 at 5:29 PM, Ron Klein wrote:
>> Hi Darren,
>> I'm finally back home (after being out of town all last week) and had a
>> chance to try using your instructions for flashing the Extended ADOS3 file
>> I have to the CoCoSDC.  I was able to flash the image without issue, but it
>> crashes the Coco 3 when I do a RUN @7.
>> The image I'm trying to flash is the one generated using Art's ADOS setup
>> program.  Not sure if the image needs to be modified in order for it to
>> run.
>> Any other things for me to check?
>> Thanks again for your help!
> First I would suggest checking to make sure that the data flashed into bank
> 7 came from a properly loaded and aligned BIN file.  With the WIDTH 32
> screen mode active, enter the following command:
> COPY MEM @7, &HC000, 1024, 2
> This will copy the first 2 bytes from bank 7 to the top-left of the
> screen.  You should see DK as the first 2 characters on the screen. If not,
> then something about the way you created/loaded/flashed the BIN file was
> not correct.
> - Darren
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