I enjoyed your commentry on the registers (HL, BC, DE), but you mention a lack of index-registers? Isn't that what IX and IY are for? (You can do things like

I enjoyed your commentry on the registers (HL, BC, DE), but you mention a lack of index-registers? Isn't that what IX and IY are for? (You can do things like "ld a, (ix+3)", etc. I used those a lot when I recently wrote a text-based adventure game in Z80.)