> I imagine one could do something with the indexed zero-page modes, but I'm not sure how well that works in practice. That's it exactly. Page zero essentiall

> I imagine one could do something with the indexed zero-page modes, but I'm not sure how well that works in practice. That's it exactly. Page zero essentially becomes 128 16-bit registers. But of course a lot of things are hungry for page zero resources. And it isn't exactly speedy. So you could put a pointer in page zero, and reach 256 bytes off of it.