Re: Disk Question

[hmag@ozemail.com.au (Terry Allen)]

> 
> The original IIc firmware has limited support for booting off an
> external 5.25" drive, but it is a manual operation, and only supports
> ProDOS disks (as far as I know).
> 
> To check whether you have the original IIc firwmare, get into BASIC
> (press Control-Reset if necessary), and type
> 
> PRINT PEEK(64447)
> 
> If the value printed is 0, 3, 4 or 5 then the machine does not support
> this feature, and is only able to boot from the internal 5.25" drive, or
> from an external UniDisk 3.5.  (The original firmware does not support
> a UniDisk 3.5.)
> 
> If the value printed is 255 then you have the original fimrware and will
> be able to boot from an external 5.25" drive by typing
> 
> PR#7
> 
There's an addition to the above, //c's with Unidisk (expanded ROM) support
can boot from the external 5.25 drive, but requires either an Applesoft or
Machine Language routine (can't remember which now) If I find it, I will
post it here.

-- 
Bye For Now, Terry Allen

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