Re: Ultima 2 strength increase bug

[Linards Ticmanis <ticmanis@gmx.de>]

SloppyMagoo wrote:

> I am impressed you were able to isolate and fix this bug after so many
> years. I would be very interested in hearing how you achieved this
> feat. Well done!

Thanks for the compliments. I'm sorry I have to say I don't really 
remember too many details about this one. But the code of Ultima II is 
pretty straightforward assembly code, which is easy enough to decode. 
The bug is simply an off-by-one issue (a very common kind of bug where 
some value is one too high or too low.) I think I looked hard at my 
attributes, then I hit RESET and examined RAM contents to find the same 
values. Then I tried to find code that modifies those locations and 
found the bug there.

Do you still have your originals? Because I'm currently looking to find 
an uncracked, unmodified copy of them. I wonder if maybe I could mail 
you some empty floppies and you could use Copy II Plus or whatever to 
make me a copy. I'd be very thankful for that

(Posted and mailed in case you don't read this group).

Merry Christmas!
--
Linards Ticmanis