Ah ha! Thanks BillG, That makes sense now.

So if I wanted to create source code that I could then compile, from my disassembled code, what would I do in this case? (I assume I would need to expand it out to more than one branch. And that this code is the result of a compiler optimisation trick?)

Hi everyone,
This is my first post, so please forgive if this is a really dumb question! :)

I am trying to reverse engineer the code for a Commodore CBM2022/2023/3022 printer. I have the ROM image and I have used various disassemblers.
In the most part, the output makes sense but I am having ...