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The ZX80 is another old computer that can be made very close to the original ( there are no special chips inside, and most of them are still being manufactured. The DIP version of the Z80 CPU is famously no longer being manufactured since last year and the RAM chips probably aren't either, but there's no shortage of new old stock for both).

If you want to make your own: http://searle.x10host.com/zx80/zx80.html

My build log (including Gerbers based on Searle's foils): https://blog.qiqitori.com/2024/03/building-a-new-zx80/


Nice, it's a bit like an extremely modern version of the oldskool plasma effect!

If you want to go that route, you may find it easier to check your logic analyzer dump side-by-side with the debugger in an emulator (e.g. VICE). Break on the first instruction and then go step-by-step. (Just need to make sure you have the same ROM version, but that shouldn't be too hard.)

However, your problem kind of sounds like a power supply problem. So using a logic analyzer will maybe just produce a different result every time. So maybe check the 12V and 5V rails on an oscilloscope while turning on the computer. (Or maybe it's a problem with the reset circuit, etc.)


Thanks I will see if I can get my hands on an oscilloscope and look at the 12v and 5v rails.

There was nothing to do back then. And if there was, it was crazy and/or reserved for the feudal lords. The primary income of the state was through alcohol taxes. Countries thought it was okay to invade other countries just to make themselves bigger/stronger countries. Nationalism, racism, sexism were the norm. Most people can't read/write. Information is scant and passed on by word of mouth.


Thanks for the insight, but how it is different from today?

- Countries now thought it IS okay to invade other countries just to make themselves bigger/stronger countries: There are currently many examples in the news.

- Nationalism, racism, sexism are the norm: Nationalism is obviously on the rise. Racism never disappeared, even being tattooed is seen as an excuse to deport people.

https://azmirror.com/2025/04/08/ice-director-envisions-amazo...

- Women and men are much more sexualized today than in my youth, despite the talk of feminism and #metoo.

- Most people can't read/write (see Piza results). Only 10% of people can understand a simple statistics.

- Information is scant (see social networks and disinformation)

For context, about my post, I am from France, and what I wrote is not specific to any country but seems to me to apply to all.


(Re-reading what I wrote above, I'd like to clarify that all the stuff I wrote above (except perhaps the alcohol tax one?) is of course not specific to Japan.)


Wha- wha- what? I tried to generate an image in ChatGPT after the announcement a while back and the image wasn't bad, but the text on it (numbers) was nonsense. (Analog gauge with nonsense numbers instead of e.g. 10, 20, 30, 40, etc.)

Gave it another chance now, explicitly calling out the numbers. Well, they are improved but not sure how useful this result is (the spacing between numbers is a little off and there's still some curious counting going on. Maybe it kind of looks like the numbers are pasted in after the fact?

https://chatgpt.com/share/67f4fa33-70dc-8012-8e1e-2dea563d3d...


These images are still created with the old model. The share link states "Made with the old version of image generation. New images coming soon." below the first image.


https://eject.kokuda.org/examples/ eject command users group (Japanese)

I've also used the CD drive to repeatedly press a button on an embedded device for debugging purposes. And yes, I learned about this usage from the linked thedailywtf article :D


"Is Paul Newman known for having had problems with alcohol?"

https://chatgpt.com/share/67f332e5-1548-8012-bd76-e18b3f8d52...

Your query indeed answers "...not widely known..."

"Did Paul Newman have problems with alcoholism?"

https://chatgpt.com/share/67f3329a-5118-8012-afd0-97cc4c9b72...

"Yes, Paul Newman was open about having struggled with alcoholism"

What's the issue? Perhaps Paul Newman isn't _famous_ ("known") for struggling with alcoholism. But he did struggle with alcoholism.

Your usage of "known for" isn't incorrect, but it's indeed slightly ambiguous.


Counterpoint: Paul Newman was absolutely a famous drunk, as evidenced by this Wikipedia page.* Any query for "paul newman alcohol" online will return dozens of reputable sources on the topic. Your post is easily interpretable as handwaving apologetics, and it gives big "Its the children who are wrong" energy.

*https://en.wikipedia.org/wiki/Newman_Day


"Paul Newman alcohol" is just showing you results where those words are all present, it's not really implying how widely known it is.


What are you, an LLM? Look at the results of the first twenty hits and come back, then tell me that they don't speak to that specific issue.


Widely reported does not imply widely known.


How else does an LLM distinguish what is widely known, given there are no statistics collected on the general populations awareness of any given celebrities vices? Robo-apologetics in full force here.


The late night show industry is making record profits.


I think this totally depends on the site in question. Seriously researching something is hell on mobile browsers. As is doing productive stuff. Who wants to work on a tiny screen and no keyboard? On the desktop you can open dozens or hundreds of tabs on a single topic. Therefore I'm not surprised to see that on my site (technical articles) I can see the number of requests from mobile devices is just 17%.

Windows is 52%, Linux (without Android) is 18%, Macintosh is 13%, Android 11%, iOS 6%, Chrome OS 0.5%, others <0.5%. (Android and iOS may include tablets, but the overall traffic from tablets is just a few percent.) (Note that I've excluded crawlers and unknown user agents (bots and crawlers) from these results.)

FWIW, some bots lie about what they are, which typically inflates the Windows results. I have another source of data, I can see what types of devices saw my site in Google results, and it's 69% desktops, 30% mobile, 1% tablets. (I can also see how many clicked, and it's similar numbers.)


Comments are not personal data. You can't publish a book and then GDPR your publisher to stop publishing it.


They are personal data, and it's not a commercialized one (the main point of GDPR). I see no reason you cannot delete your own public comments, at least on the primary site.


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