Hello @ all

I'm trying to change a subtraction in 551k file (adress 87A69E)

mov r4, plsol_w
sub r4,plgru_w  ->>> 22 F4 66 A6

change in
mov r4, plsol_w
sub r4, pu_w  ->> that would have to ->> 22 F4 8C 0A
I look for where pu_w is used fits 8C 0A is right, but it does not work.
I'm looking for a subtraction with pu_w .. there are too 8C 0A.
I do that in 551f where pu_w is also in the range of 382xxx it works fine.

can explain to me one why that does not work at 551k.
I try to explain it but I miss the knowledge?
or can someone give me a solution

many thanks

thanks...
another user has just written me too.

Now I just have to see how I get it in there. place is not free.


I will buy another book to learn more