Hi Nicolás!
> If you start to execute code on a random location, I
> guess it's more likely that the game doesn't work at
> all, than to produce a consitent slightly different
> game.
Well, what if only the LSB of the PC gets corrupted?
Assuming we safely land on the starting page, which
should most likely contain all executable code.
In that case chances of hitting a valid instruction
within that page should be slightly better than 1 out of
3 tries.
Now assuming that it's probably only single PC bits that
get corrupted, so you might get "similar scenarios"
quite more regularly than 1:255 ... :-)
Another thought: How about dumping a fried game?
> Maybe eventually a BRK will be executed, but that
> will execute the RAM initialization code that every
> game has, so it should run the "normal" game.
Hey! Wow! Is that true? I ran into that on accident more
then once. I even thought about just using
BRK
instead of some
JMP Reset
code, saving two or more bytes. Only: I got the
impression that the RAM was _not_ cleared and thought
it'd *just* bankswitch back to the intro bank.
I wasn't 100% sure wether I could safely exploit that as
described for a "Game Over" _without_ resetting the
current RAM content (Polynomial/Hi-Score/etc...)
Do you think doing BRK would be fine?
> I stick to the RAM theory ;-D
Time will tell. :)
Greetings,
Manuel
----------------------------------------------------------------------------------------------
Archives (includes files) at http://www.biglist.com/lists/stella/archives/
Unsub & more at http://www.biglist.com/lists/stella/
