The Commodore 128 was marketed as being “three computers in one”. I guess technically they were correct when they made that statement. Although I’m very find of the native 128 mode, the system saw its uses mostly as a games machines in C64 mode. I don’t recall anybody ever looking at CP/M mode longer than half an hour (if that).
There are three ways to put the C128 into C64 mode. Two of which I always knew about, ever since my friend Frank Jagow bought himself a whole C128 system from his paper route money in 1986. But the third option’ve only recently learnt about – after over 30 years of being a C128 fanboy. How exciting!
Here are all three options.