Re: DOS 3.3: "64K Slave Disk" ?

[pausch@saaf.se (Paul Schlyter)]

In article <Pine.LNX.4.62.0601130103400.10680@static-141-149-129-16.buff.east.verizon.net>,

> I know Diversi-DOS is capable of making 64K DOS boot disks, but I don't 
> really want to use Diversi-DOS.
> 
> Does anyone know if it's possible to make a 64K DOS boot disk with a 
> normal DOS? (Actually, STOS, the one I use on the DOS 3.3 versions of 
> Apple Crunch.)  I have a crunched program that hangs under 48K DOS and 
> ProDOS+BASIC.SYSTEM but works fine with ProDOS+PDOS.SYSTEM, RDOS and 64K 
> DOS.

If you by "a normal DOS" mean an unmodified standard version of DOS 3.3
(or 3.2 or 3.1): No, that's not possible.  DOS would have to run in the
Language Card (or some other equivalent RAM card), and that would require
some code for bank switching when needed.  And a normal DOS does not have
this bank switching code.  Therefore, modifications to the standard DOS
3.3 will be needed if you want to put it in the Language Card.

-- 
----------------------------------------------------------------
Paul Schlyter,  Grev Turegatan 40,  SE-114 38 Stockholm,  SWEDEN
e-mail:  pausch at stockholm dot bostream dot se
WWW:     http://stjarnhimlen.se/