Re: DOS 3.3, making sure I know what code areas aren't used

[Lyrical Nanoha <LyricalNanoha@dosius.net>]

On Fri, 23 Dec 2005, Linards Ticmanis wrote:

> Lyrical Nanoha wrote:
>
> > 1, I don't really want the later version because it just introduces more 
> > bugs at the cost of RAM space, there's not as much room to tweak. (That's 
> > why stuff like Pronto-DOS's patcher requires the 1980 version.)
>
> I see... is there a list of those bugs somewhere? I thought the 1983 release 
> was supposed to FIX bugs, not CREATE them?

According to AAL, the fixes introduced new bugs.

> > 2, the trick would be ripping a copy before it has a chance to JMP $9D84. 
> > :/ (I have some reasons for that.)
>
> DOS resides in the first three tracks of the master disk. i.e. the first 
> 12288 bytes of the disk image. Cut them out on a PC, rearrange into the right 
> order and store as a file to another Apple disk image. You'll just have to do 
> the relocation by hand.
>
> Or, put a breakpoint at $9D84 in an emulator such as AppleWin, then save a 
> memory image.

That worked, I tried it in old Dapple.

-uso.