Why? O.o
The Prizm is very different internally than the TI-84+. For one thing, there's the whole issue of memory. There aren't any areas of "SafeRAM" on the Prizm. Every piece of memory you need you have to ask the OS for. Secondly, the hardware is different. You can't just do "Full" to speed the calc up. It's rather complicated and dangerous to do it from where programs are usually launched, besides costing a massive 4 milliseconds to switch (unless you don't mind a few thousand clock cycles of completely unreliable memory reads
). There are some other differences, but what it comes down to is that any such language would essentially be C with prettier syntax. Ironically, that's kind of what Axe is.