Re: Apple ][ using PC floppy

[Toinet <antoine.vignau@laposte.net>]

Congratulations Vladimir,

That is a nice project ;-)

The VTOC of the DOS 3.3 OS is limited to 50 tracks. On the VTOC, four
bytes are reserved for each track/sector space. For each entry, the
third and fourth bytes are never used when we are dealing with a 5.25
disk.

On a 3.5 DOS 3.3 disk, sectors are numbered 0 to 31 which, I
understand, is not what you want to do. In that case, hack DOS 3.3 to
use those two bytes to handle 35 other tracks. That might work.

When I come back to Paris, I will send you a DOS 3.3/ProDOS format
routine. But if you have a DOS 3.3 RWTS, search for CMP #$23 around
$BE00..$BFFF and replace the value with the one you would like to use.
That will not help you with the OS part but that is the first step.

And, please, count Vlad, count me in for a board.

See you in Paris,

Antoine