On an off-topic note, I noticed that when you pull a battery during a program, while the RAM is not cleared, it seems to restore it to a previous state than it was when you turned it ON. For example, I had Sjasogun1 RPG on my Prizm, then I started writing a test BASIC program. Afterward, when runnign Insight graphical demo, I removed a battery, then the calc turned back ON, asking me the language and battery settings. My program was gone, but all Sjasogun1 files were back. I assume the RAM is stored in another RAM area or maybe even the Flash when turning the calc OFF, right?

By saving you mean turning OFF the calc, right? I never manually put them there.

Ah maybe. That's good in some ways in case later we have ASM/C libs for BASIC coders and crashes can occur. We don't lose our entire progress then.

A bit offtopic, but is it Japanese that is preinstalled on the Prizm?

I believe we've figured out that it's actually Chinese, but I'm not sure, and I can't remember when this was discovered.

About the languages, anyone figured out what's the purpose of Language file deletion options in the System/reset menu? For me it didn't even seem to do anything.

There are two kinds of languages - pre-installed languages and add-in languages. Only add-in languages can be deleted. (Of course, I might be wrong... As you know, I don't have a Prizm)

I see. I assume this would mostly apply to official add-ins, not the community ones, right (unless someone can make a bilingual utility)?

It applies to add-ins that translate the system into other languages, kinda like the language apps on the 83+/84+.

...The DMAC-address for this operation is 0xFE008020 (channel 0). The address of DMAOR is 0xFE008060...Every single register-address involved in accessing the display does not occur in the 7705- or 7720-lists...

I just noticed that the DMAC-address of the Prizm belongs to the 7730. I would not be surprised, if it turnes out, that parts of the Cyberdyne Systems Model 101 Series 800 have been used, too.