Space Invaders on your wrist: the glory years of Casio video game watches

Re:Space Invaders on your wrist: the glory years of Casio vi... by forinti on Monday May 05, 2025 @06:59AM (#43893661)

I bought a Casio recently and I was curious about the mechanism, but I couldn't find anything. The only detail that I found was the frequency of the crystal.

Regarding the controller, the best I could find was a few posts with people theorising about it being an ASIC or an MCU.

I guess Casio is good with secrets.

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Re:Space Invaders on your wrist: the glory years of Casio vi... by throwanem on Monday May 05, 2025 @07:50AM (#43894043)

If you can talk Ken Shiriff (righto.com) into decapping one, they won't stay secret for long.

On such a question I suppose he might not take that much convincing, though I only know him by his work. But intuitively for the age of the watch I would expect MSI or LSI ASIC on some kind of mildly exotic film process for the epoxy blob die-on-board packaging they used to do before true surface mount packages made it to consumer products.

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