Re: ProDOS, IIgs and large RAM disks.

[dempson@actrix.gen.nz (David Empson)]

Dennis Jenkins <dennis@usb.com> wrote:

> Ok.  It all works now.  The critical issue was doing a warm boot and not
> a power off/on after changing the control panel settings.  Also, A piece
> of third party software (zlink) errantly displays "/RAM" twice (the
> first time one tabs through) in it's quit handler.  That is what led me
> to believe that I had two /RAM volumes.

I've seen this before, with Bird's Better Bye (Alan Bird's quit handler,
which was included with AppleWorks 3.0, and which I improved and used in
the QUITTER.SYSTEM program which I co-wrote with a friend).

Note that the quit handler has nothing to do with Z-Link.

I forget the precise reason for this behaviour, but I think it occurs
when the ProDOS prefix has not been set.  Birds Better Bye displays the
last accessed volume, which happens to be /RAM.  When you hit TAB, it
picks the last unit in ProDOS's unit list as the "next" volume, and this
is also /RAM.

I don't recall whether I changed this behaviour in my modified version.