Also, the JMP BEGIN approach will still work even if you move the BEGIN routine elsewhere in bank 7, so presumably it's done this way so things won't break during development when you're still trying to work out which bit of code goes where.
There are quite a few remnants of code in the NES version that do nothing - I guess with 128K of ROM, the authors didn't need to go hunting for every single optimisation, unlike the BBC Micro version...
There are quite a few remnants of code in the NES version that do nothing - I guess with 128K of ROM, the authors didn't need to go hunting for every single optimisation, unlike the BBC Micro version...