To: David Wilson David Wilson wrote:
You probably can't get much more than 8. The absolute maximum limit is 14 units, but you could only get that if you took out all disk controller and other storage interface cards (apart from the Microdrive card), and removed the extended 80-column card.ProDOS supports up to 14 volumes but reserves 3/2 for /RAM (v2.0.1 forgot to do that and would, if you had enough SmartPort devices, map a drive to it and then overwrite it with /RAM). I have managed to get 15 drives working under ProDOS by using 0/2 (0/1 aka Unit 00 is special and cannot be used).
Is it possible to disable the /ram to allow another disk to be remapped?
In principle, someone could write a program which patched the SmartPort device mapping table inside ProDOS's language card, and this could allow more units to be swapped in under user control, as long as the interface card firmware supported more devices.Would anyone be interested in such a program? I must do some 6502 programming again before I forget how to...
Possibly but mostly in an emulator such as Oasis or Kegs. I've been know to load many disk images when working with files and archives.
How would one get around the P8 limitation of 14 devices? I suppose it might be possible to swap mapped devices but I could see where that might cause some problems.
Cheers Mike T --- Synchronet 3.14a-Win32 NewsLink 1.85 A2Central.com - Your total source for Apple II computing.