Re: Matsushita disk drives need attention!

From: Greg King <>
Date: Sun, 15 Mar 2015 01:01:47 -0400
Message-id: <>
On 2015-03-14 3:28 PM, Ville Laustela wrote:
> Btw: is there a way to access the second drive with ZoomFloppy and cbmctrl? I can access the drive 0 as usual (cbmctrl dir 8). One way to go over the problem is to use WinVice 2.2 with access to the ZoomFloppy-attached drive, then use x64. Doing a 'load"$",8' there gives the directory of drive 1 (interesting thing is that if there is no disk in drive 1, it then tries drive 0 and if there's disk, it returns it's directory).

When you send that command (getting a directory without a drive number) 
to Commodore's dual drive units, the DOS tries to read the directories 
from the disks in _both_ drives.  The DOS remembers which drive was used 
most recently; it starts the directory listing with that drive; then, it 
lists the other drive.  A similar thing is done when a program tries to 
open a file.  If a drive number isn't used, then the DOS looks for the 
file on the most recently used drive.  If it can't find that file, then 
the DOS looks on the other drive.

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Received on 2015-03-15 13:00:06

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