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Re: Genesis deprotection
On Saturday, July 21, 2012 8:56:48 PM UTC-5, (unknown) wrote:
> On Saturday, July 21, 2012 8:43:08 PM UTC-5, bloomer_au wrote:
> > Hi guys. Thanks for the brainstorming.
> >
> > Just to confirm - yes, the crack definitely runs on my real IIGS when I just BRUN GENESIS.
> >
> > I'll do a few checks with ADTPro to make sure things are traveling across okay, though I'm guessing they are.
> >
> > In the meantime, you may wish to have a look at the file itself. I've put it here:
> >
> > http://aeriae.com/no/genesiswork.dsk
> >
> > I initialised a new DOS 3.3 image from the system master then copied the Genesis file onto it. So it boots to the basic prompt.
> >
> > - Wade
>
> The quick answer is that at $900 it jumps to $5560 to perform a memory copy from $5600 to $8300 (up through to $8CFF), but then it jumps to $80C1.
>
> The problem is that there's no code at the $8000 page to execute.
>
> So something is missing in what was saved, or was placed in the incorrect location.
and comparing to the 'cracked' file version from Asimov, there's code at $80C1 (that version has a jump at $8FD to it).
Maybe more than one version was published, and the load locations changed?