Re: Question about modifying DOS 3.3 or ProDOS

[schmidtd <schmidtd@my-deja.com>]

On Jan 8, 12:27 am, BLuRry <brendan.rob...@gmail.com> wrote:
> On Jan 7, 11:16 pm, bluebird <mildst...@gmail.com> wrote:
>
> > To use serial I/O instead of disk II (I know which is already made.) I
> > want to know how to make modifed dos image.
> [...]
> The trick is to replace the Boot 0 and Boot 1 loaders with a custom
> serial approach and look at each sector being transferred to see if it
> is a RWTS routine.  If so, replace with your own with the same entry
> points.  You might get more traction building off of the AGS codebase
> rather than starting from scratch.

That way, you could do DavidDOS or DiversiDOS or DOS 3.3 or whatever
over the serial line, kinda automatically: replace the RWTS as it gets
loaded.  But is that what bluebird is really after?  Would it be
sufficient to just serve one already-patched DOS?  I.e. is the
flexibility of patching any arbitrary DOS really a requirement?