JSR Returning to wrong place in code

Yeah, it's definitely a side issue, but it does indicate (along with a little further reading) that I had some fundamental misunderstandings about how the stack works. I'll go over my code again with that in mind and see if I can track down the problem now.

ETA: I figured it out! I need to pull both inside IsSummon AND right after I return from NotSummon, before I branch, rather than at CharNextSpell. I realised that the address it was RTSing to was actually the IDs for the two Lore/Summon spells that were learned at the point I was testing this, because it wasn't pulling the value I'd pushed from A during that loop.

Things aren't actually working yet, but I've fixed the immediate problem. I'm at the actual menu-building code part now and I've barely started to scratch the surface of that. WISH ME LUCK.