วีดีโอ

心の中で「どこいくねーん」って突っ込んでましたわ…（どうやらコントローラーのボタンにキーボードのキーをマッピングしてたのが悪さしてたみたいです）

The version used in Detana Twinbee has been my morning alarm for a couple of months now. I don't see myself changing it anytime soon.

GETTING READY! 48 GETTING READY! 46

During the voice countdown, the memory is being brought up to temperature. This phase is temperature-dependent and takes longer in the winter. During the on-screen countdown, the game is being loaded into RAM. This step is deterministic and always takes 100 sec (give or take some init time at the end). So, "warming up now" is a little bit misleading. In fact I wanna say the "getting ready" part is handled by the bubble MCU (which is limited on code space). The visual countdown and morning music are the first things loaded from bubble memory itself, which is why they only appear after the memory is at temperature.

@@evil-wombat Ah, thank you. It does seem like a really strange memory technology to choose for this application (aside from its unreliability) since the game code has to be copied in its entirety into RAM prior to launch, and therefore hobbles the game to exactly RAM size or less. Whereas of course if they'd simply used a disk of some sort which were perfectly commonplace in this era, they could use overlays and get a much more full featured game out of the same RAM size. It's not like bubble memory is more non-volatile in some way than a plain old floppy.

@@evil-wombat And if it was copy protection of a kind they were after (similar to the Kabuki mess), well, that's defeated by the fact that game had to be copied into contiguous RAM in order to run, and so therefore is a case of a minor hack to the bootloader to halt rather than jump into the game in order to copy it. Very curious!

@@andromedaturnbull3512 the financial situation was different at the time. In 1985, silicon ROMs were expensive, and bubble memory prices were coming down. Hard drives and disks were still very expensive and fairly unreliable, with bubble storage being in a good position to fill the gap. It was believed this would eventually be the more economical technology, if trends continued (which they didn't). Also I don't know for sure, but I suspect the game wasn't *all* copied into RAM at once, but that there was some on-demand loading done as you progressed. I suspect this because (a) the game logo continues to slowly load even after the title screen is up (on the ROM version this is faster) and (b) a full backup of the bubble memory to modern storage takes way longer than 100sec, on the same hardware. There are videos out there (search for Bubless). In the HW-emulated version, the bubble emulation module has some activity LEDs, and you can see this continues to blink even after the game is loaded and past the title screen.

@@evil-wombat Thank you so much for that information! I must say, you are incredibly knowledgeable on this and I am grateful for your explanation as a lot of the sources online appear to be conflicting or incorrect. I have never repaired any of the Bubble System based machines although I would definitely like to if I get the opportunity. I suppose it was just before EEPROMs became commonplace that these machines were released and indeed if the alternative was mask ROM, the rationale does make sense. What you mention about some form of incremental loading does also therefore give the technology more of a rationale.

When you gotta warm up the game "cartridge" before you read it, and even then it's hella slow.

I think so (all 256kb of it). I've seen some HW emulators for the bubble storage, and it seems the "access" LED blinks even after it's done loading...... but based on my understanding this is the whole thing

ずらすと合うのか?