I don’t understand what you mean. In your process, you can control the address range of your memory, so the address range of your pointers. It’s irrelevant if t

I don’t understand what you mean. In your process, you can control the address range of your memory, so the address range of your pointers. It’s irrelevant if the 16 bits are reserved by the architecture or not - just don’t map space that uses them. What’s the issue?