Just checked and I see the problem. Computer signed division just works weirdly. Forget everything I (and Berserker) said about %. Use & instead.

(03.05.2015 00:45)Valery Wrote:  Ok, I have wrong value in the case the first y72 is correct, I guess is related to Seer hut number or position. How can we know when the result is garbage or ok?
A solution would be to start %256 process only if y72>100 I think? And let normal value if y72<100 as it is very unlikely that a mapmaker offers more than 100 bonus in a seer?

I don't know. Let's hope the problem goes away when you switch to & method.