2023 WACON Qual - Adult Artist

There are only two functions. In start read 400 bytes then check in 4 byte increments.

Move 4 byte to eax, and ecx is index of loop. Then jump to some address by ecx and address table.

The length of the table is 100.

Each address have long-long codes and at last they jump to compare code.

compare

 

I copy the 100 parts code and make python code to parse it.

yeah it is terrible code but work. :D

And write inverse function. It's just Add -> Sub, Sub -> Add, Inc <-> dec ..

 

Then call it!