Re: BRUN becomes RUN - minor bug though

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

On 22 déc, 21:04, lyricalnanoha <lyricalnan...@usotsuki.hoshinet.org>
wrote:
> On Mon, 22 Dec 2008, Toinet wrote:
> > On 22 déc, 17:13, lyricalnanoha <lyricalnan...@usotsuki.hoshinet.org>
> > wrote:
> > (cut cut)
> >> BTW, I'm planning to do this with DLM stuff, but if anyone's got stuff
> >> that isn't "hacktro'd" I'd like to take a shot at that too xD, esp. now
> >> that I've learned how to use stuff like Advanced Demuffin. (Now I'm
> >> wishing my real //e had the EDM!)
>
> >> -uso.
>
> > Sorry, I am lost with your acronyms:
> > - DLM: the software editor?
>
> DLM did educational software in the 80s.  I had access to a few disks of
> theirs when I was younger, tried to copy them for myself and failed.  Of
> course now, I'd prolly succeed.
>
> > - EDM????
>
> Enhanced Debugging Monitor.
>
> The trick is this: press opt-ctrl-reset at any time to break into the
> monitor.  Kind-of like the original Apple ][ ROM.  I used it to break a
> NIB of "Elementary Vol.9" just to see if I could - when it boots, if you
> ctrl-c it, it'll hang, then if you ctrl-reset, it'll reboot.  So I broke
> into the monitor and moved the RWTS out of the way.  Worked nicely when I
> then went and took the RWTS image into Advanced Demuffin.
>
> The brun-run trick was so I could stuff a bunch of files together, then
> execute one.  It would relocate everything into proper places, and then do
> a RUN.  A second trick, the run-brun trick (BASIC stub), is used all the
> time on the C64, and I've been using it on the Apple for awhile.
> Combining the two could make for some real wacky obfuscation indeed.
>
> -uso.

Thank you both of you for your answers. I did not know the Enhanced
Debugging Monitor, it looks like a nice cracking ROM if no vectors
have been redirected.

The 1.4 version of Advanced Demuffin to be found at the following link
could save you a few steps in making a copyable version of DLM
software as it offers the ability to simulate a reboot and get the
disk's RWTS into memory in one step: http://www.brutal-deluxe.fr/products/apple2/diskcopiers.html

Regards,

Antoine