archive.worldofdragon.org

Hi Robert,
sorry I didn't attach it first time!
Here you will find a 720k disc in both formats:
VDK, this one loads and works flawlessly in XRoar
DSK, that gives IV ERROR when issuing a DIR command

cheers
pere

Hi Ciaran, we cannot open DSK files converted from VDK files that are discs 720k long. The VDK work flawlessly in XRoar, but the DSK, that are exactly the same file without the header, always return IV ERROR when entering DIR Is there any constraint that doesnt' admit DSK files longer that 182k? che...

I attach here a small java app that will convert any VDK file into a plain DSK
That way you could use it in the CoCo-SDC for your Dragons

cheers
pere

Doesn't seem to be sign related but simply absolute length limited. I have splitted it into two identical halves, then loaded the second to Optimize it and when I have tried to Append the first half it has given the ERROR 1, so it has detected that having half the score loaded, the other half doesn'...

Hi Tony, What you have done gives me a hint about the problem ... Maybe a too long file shows a length word that is taken as a negative one! Just have a look at the CAS converted file, this one has a length of $9381 bytes, you know what I mean ... being greater than $7FFF it becomes a negative value...

Could be an issue of how XRoar manages non standard disks? Maybe you need to run it in CoCo mode instead of Dragon? Hi Robert, great idea. I could, of course, load all of the CAS files into Orchestra in a CoCo Emulation with XRoar and then save them to disc, very good! I will copy the discs later o...

Hello, while loading some long files to my CoCo, I have found a 'bad' one with the name IDTEACH In fact trying to load it into XRoar gives immediately the ERR 1 just after having read the header After the error, pressing E to edit, shows nothing at all, it seems that the program has not acepted the ...

Hi, Robert there is no problem running XRoar emulating the Orchestra-90 CC but you just can load tape files if you have a Dragon emulation. On my real CoCo3 it loads well from Audacity and then saves to disc flawlessly. Later those files can be retrieved and played Of course, emulating a CoCo instea...

no, unfortunately not! I think, and I may be wrong, that Orchestra works with the hardware DOS registers $FF48,49,4A,4B without using DOS calls. It seems logical because with an MPI installed, the RAM cell $FF7F contains the 'active software' slot and the 'active hardware' slot, one in each nibble. ...

right now I can't tell. I am trying to dig in the unassembled code looking for std disc routines calls . My problem is that, despite knowing how Dragon DOS is built, it seems that the CoCo Disc system is absolutely another thing. It hasn't the indirect table $C008-$C02A with 17 functions there so ma...