A month of reverse-engineering of a 42-year-old operating system just to display anime girls in it.
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A month of reverse-engineering of a 42-year-old operating system just to display anime girls in it. Trust me, it was all worth it.
Still Work In Progress, but the current version is https://git.sr.ht/~nkali/vision-homebrew-test-app - requires make, Python, nasm, gcc-ia16 and mtools :)
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A month of reverse-engineering of a 42-year-old operating system just to display anime girls in it. Trust me, it was all worth it.
Still Work In Progress, but the current version is https://git.sr.ht/~nkali/vision-homebrew-test-app - requires make, Python, nasm, gcc-ia16 and mtools :)
@nina_kali_nina Okay but can you Bad Apple yet?
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@nina_kali_nina Okay but can you Bad Apple yet?
@krutonium kind of; I can just freeze the OS while playing the video for now. To keep it multi-tasking, I will need to reverse-engineer timer syscalls.
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A month of reverse-engineering of a 42-year-old operating system just to display anime girls in it. Trust me, it was all worth it.
Still Work In Progress, but the current version is https://git.sr.ht/~nkali/vision-homebrew-test-app - requires make, Python, nasm, gcc-ia16 and mtools :)
@nina_kali_nina Congrats 😁
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@nina_kali_nina Congrats 😁
@mr_greeb thanks! I consider this project close to being "now we have to document it while we remember the details, and then someone else can do something else with it"
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@krutonium kind of; I can just freeze the OS while playing the video for now. To keep it multi-tasking, I will need to reverse-engineer timer syscalls.
@krutonium bonus idea: the installer is supposed to be a 360KB floppy. "Installing Bad Apple 1.0, insert floppy 67 out 235"
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A month of reverse-engineering of a 42-year-old operating system just to display anime girls in it. Trust me, it was all worth it.
Still Work In Progress, but the current version is https://git.sr.ht/~nkali/vision-homebrew-test-app - requires make, Python, nasm, gcc-ia16 and mtools :)
@nina_kali_nina The menu bar. It's... it's at the bottom 🤯 🙃 I'm not sure if that's legal.
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Advanced Problems in Mathematics (ebook)
@libri - Ottima la struttura, ma molti problemi sono troppo tecnici per divertircisi
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Advanced Problems in Mathematics (ebook)
Innanzitutto una buona notizia: il libro è in CC-BY, quindi lo si può direttamente scaricare e anche riusare indicando il nome dell’autore. Passiamo ora alle notizie meno belle. Il testo nasce specificatamente per preparare gli studenti britannici agli esami STEP di ammissioni alle migliori università, e questo significa che è molto orientato verso l’analisi matematica, che onestamente non è uno dei campi che preferisco. Certo che se però siete effettivamente interessati a passare lo STEP, allora la struttura è ottima: i problemi e qualche consiglio su come affrontarli sono sulla pagina di destra e le soluzioni (con un post-mortem che dà ulteriori spiegazioni) su quella successiva, per evitare che uno sbirci per sbaglio la soluzione. Insomma, un libro che mantiene quello che promette, anche se non è detto che è quello che vogliate.Stephen Siklos, Advanced Problems in Mathematics : Preparing for University, Open Book Publishers 2019, pag. 188, CC-BY 4.0, ISBN 9781783747771
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I'm afraid everyone is going to find out I don't actually have Impostor Syndrome.
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This is the image I started from. Not exactly 1:1, but I think it works pretty well for an afternoon/evening and given the limitations of the C64. I'll try to tackle animating overlay sprites at some point, so I can also import that fine black line as a second high res sprite. That's a lot more complicated, though, as it needs to accommodate different resolutions and such. (From here: https://arks.itch.io/dino-characters)
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It's gone too far, somebody needs to stop me.
Importing a PNG character sheet. I start with a little dinosaur buddy from Itch.io, and load it straight into Spritely with no processing other than picking the row of little guys I wanted in the animation and cropping it to that size.
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@ro come ho già accennato in altri thread, il mio codice genetico mi dice di prendere una grossa clava e di ridurre in polpette il ministro ed i suoi pari, ma purtroppo (e per fortuna per lui) sono un essere civilizzato e non sempre faccio ciò che mi dice il mio codice genetico.
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@nina_kali_nina The menu bar. It's... it's at the bottom 🤯 🙃 I'm not sure if that's legal.
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How to Use That Slide Rule
You have that slide rule in the back of the closet. Maybe it was from your college days. Maybe it was your Dad’s. Honestly. Do you know how to use it? Really? All the scales? That’s what we thought. [Amen Zwa, Esq.] not only tells you how slide rules came about, but also how to use many of the common scales. You can also see his collection and notes on being a casual slide rule collector and even a few maintenance tips.
The idea behind these computing devices is devilishly simple. It is well known that you can reduce a multiplication operation to addition if you have a table of logarithms. You simply take the log of both operands and add them. Then you do a reverse lookup in the table to get the answer.
For a simple example, you know the (base 10) log of 10 is 1 and the log of 1000 is 3. Adding those gives you 4, and, what do you know, 104 is 10,000, the correct answer. That’s easy when you are working with numbers like 10 and 1000 with base 10 logarithms, but it works with any base and with any wacky numbers you want to multiply.
The slide rule is essentially a log table on a stick. That’s how the most common scales work, at least. Many rules have other scales, so you can quickly, say, square or cube numbers (or find roots). Some specialized rules have scales for things like computing power.
We collect slide rules, too. Even oddball ones. We’ve often said that the barrier of learning to use a slide rule weeded out many bad engineers early.
