Re: [cc65] Atari Disk Image Tool ?

Hi,

On 26.09.10 12:32, Oliver Schmidt wrote:
> There seem to be quite some disk formats and DOSes around. I'd like to
> create an .ATR file wich can easily converted back to a real floppy
> disk by most Atari users. Which format and DOS should I use for that
> purpose.

You should use 90k single density or 130k enhanced density format.
Which version of DOS shouldn't matter, but the "standard" is
Atari DOS 2.5.

> All questions below refer to whatever DOS is "the right" for me:
>
> In order to create a bootable .ATR file I seem to need to have DOS.SYS
> around. Where should I get it?

You can get DOS versions from http://ftp.pigwa.net/stuff/collections/atari_forever/Dos/
To make it bootable the first 3 sectors should contain boot code. unix2atr writes
it (at least DOS 2 any MyDOS compatible, I don't know if it's dependent on the
DOS used). DIR2ATR probably write it, too, but I haven't checked.

> Should the cc65 binary I created have a name with a certain extension?
> What is the maximum filename length?

8.3 file names like in MSDOS. Extension doesn't matter, but .COM is
convenient for SpartaDOS users, they can type the file name without
extension on the command line to load the file.

> If I have just one binary (and some support files to be loaded by it)
> on a disk then I presume it can be autoloaded by giving it a certain
> name. Which one?

This depends on the DOS used. For DOS 2.5 it's AUTORUN.SYS.

> If I have several binaries on a disk the user should be able to easily
> choose from do I have to do something special to meet Atari user
> expectations?

Write a menu loader? :-)
Or you can try MyPicoDOS (http://www.horus.com/~hias/atari/) which is tiny and
boots into a menu showing all files and the user can highlight one and start it.

Are you by chance trying to port contiki 2 to the Atari? If yes, I did the
Contiki 1 port. If you need assistance. please contact me off-list.

regards,
chris
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