Re: What about II GS ROM04 ?

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

In article <4ug4sf$957@europa.frii.com>, shack@deimos.frii.com (Randy
Shackelford) wrote:

>In article <dempson-0808960120230001@dempson.actrix.gen.nz>,
>David Empson <dempson@actrix.gen.nz> wrote:
>
>>The drivers should be in the operating system (GS/OS), but not in the
>>firmware, so you can only access 800K and 400K disks in ProDOS-8, but it
>>should be possible to access 720K and 1.44MB disks under GS/OS.
>
>You can format a 400K ProDOS disk?

GS/OS hasn't supported formatting 400K disks since System 6.0, if I
remember right.  It should be able to read them, provided the ProDOS FST
can handle it (there is no MFS FST, and HFS is not used on 400K disks).

Under ProDOS-8, it is possible to format a 400K disk if the software
fiddles with various SmartPort calls (setting number of sides, or using
GetFormatOptions/SetFormatOptions, depending on the ROM version).

>I never tried so I don't know. I know that 7.5 or maybe even earlier
>won't format a 400K on a Mac.

Probably doesn't even read it.  I don't have any 400K disks so I can't try it.

>Unidisks won't read 400K disks will they?

I think they will, but they don't do it very well.  I tried once, and it
seemed to work, but I do remember hearing about a problem.  I can't
remember the details, though.

-- 
David Empson
dempson@actrix.gen.nz
Snail Mail: P.O. Box 27-103, Wellington, New Zealand