[Coco] HDBDOS >>DRIVE OFF

Robert Gault robert.gault at att.net
Sat Oct 5 22:14:15 EDT 2013


Chad H wrote:
> Can anyone tell me what this command is really doing?  I'm trying to find out if I can POKE a HDBDOS rom to get it to boot withe "DRIVE OFF" as default setting.
>
> Why?.  This setting allows use of real disk drive and I want to have option to boot AUTOEXEC from real disk.
>
> Sent from my Asus Transformer Infinity
>

Since RGBDOS/HDBDOS is intended for hard drive systems, the default active 
drives are all on the hard drive, 0-255 for Disk Basic. This can not be changed 
without changing the ROM code.

However, you can always place an AUTOEXEC.BAS on drive0 of the hard drive with 
the single line:
10 DRIVEOFF: DOS

This line will make drives 0-3 floppies while drives 4-255 stay on the hard 
drive. The DOS command will run any AUTOEXEC.BAS present on floppy drive0 or any 
OS-9 boot on that drive.

The real question is why in the world would you want to run AUTOEXEC.BAS from a 
floppy when you are using a DOS that talks to hard drives?

Robert





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