Mostly PC Engine and PC-FX reverse-engineering and development. I also contribute to MiSTer FPGA cores and a Mednafen fork. (hobby)
Canada
Joined March 2011
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David Shadoff retweeted
Bonjour tout le monde, je viens de commencer les commandes de composants pour et les cartes le seront dans la foulée. La page du produit est prête!
polykubos.fr/en/video-games-…
#NEC #PCENGINE #SUPERGRAFX #FPGA #RETROGAMING #POLYKUBOS
I just saw this article, with the clearest picture of an in-development PC-FX ODE. (Note: article is in French)
gamsha.com/decouverte-un-ode…
OK, in a few days, PC Engine is going to celebrate its 39th anniversary of release.
Is anybody planning a big celebration next year for its 40th ?
This is a pretty good way of looking at how AI can be/is being applied to many pursuits.
"We recognize the power of new technologies for mathematical reasoning and appreciate what they can contribute to the subject we know and love. We are generally optimistic about the role AI can play, but we are deeply concerned by some recent calls to formalize everything as quickly as possible. If done well, a large-scale, coordinated formalization effort could enormously expand mathematical exploration and discovery. Done poorly, it will be, at best, a waste of resources; more likely, it will do lasting damage."
A guest post on xenaproject by Jeremy Avigad, Kevin Buzzard, Johan Commelin, Rémy Degenne, Kim Morrison, Oliver Nash and Adam Topaz
xenaproject.wordpress.com/20…
David Shadoff retweeted
For October, here's a video on Dead of the Brain 2! Now I've covered all three games in FairyTale's "Nightmare Collection"!
youtu.be/XKj2U3gOa3E
#pc98 #deadofthebrain
David Shadoff retweeted
Fortress of Narzod on the Vectrex Mini! One of the built-in games. 🕹️
(Footage captured on a prototype. Not the final version.)
David Shadoff retweeted
#でべろ #PCエンジン #アセンブラ #Claude
私が過去に「でべろ」を使ってPCエンジン用に書いた唯一の6502のソース。
claudeの力を借りて.pceファイルに変換してもらい
30年ちょいぶりに動作させることができました
※当時は1行修正するだけでMSX2ではアセンブルと転送で40分近くかかり、途中でギブアップしました
＜でべろ用ソースのgithub>
github.com/msx2rockcity/deve…
＜PCエンジンエミュ動画＞
Oh, it looks like Crowdsupply put up the videos from the 2026 Teardown event. I'm looking forward to viewing a few of these !
youtube.com/@crowd_supply/vi…
David Shadoff retweeted
Linuxで動かないスキャナーを買ってしまったRed Hatの開発者がWindows VMでベンダードライバを動かし、その裏でUSB通信をAIに記録・解析させてLinuxドライバを書いた。
joho-todai.com/ai-observes-w…
数時間で最初のスキャンが動き、数日で赤外線対応のほぼ完全なドライバが完成。
コードのコピーも逆アセンブルもせずハードウェアの振る舞いだけを観察して書く。
この手法を汎用ツールとしてGitHubに公開し、ノートPCのカメラ修正にも応用している。
設計と実機検証は人が担いAIはキャプチャの差分解析とテスト生成を受け持つ。
By the way, there are some really interesting things happening in PC-FX land. There should be a series of announcements coming soon.
Another fun fact that I learned today about the PC-FX CD+G player - there are actually two separate renderers.
To switch between them:
While playing a CD+G, move the cursor to the "C" in "PC-FX" in the top left corner, and press the "III" button. It will take a moment to redraw.
I've seen different reports about whether the PC-FX supports the very rare CD+EG discs. Official documentation claimed at one point that they were supported, and at least one online reference agrees.
But I saw another online reference to a recent CD+EG disc that it is not.
The answer is that they are probably both right.
While the discs play, and in some areas display the full 256 colours, other areas seem to be covered with pixels of improper palettes.
David Shadoff retweeted
Est ce qu'il existe un jeu d'arcade 2D avec un framerate plus mauvais que Metal Slug 2?
La série Metal Slug à déjà un handicape rare pour du jeu d'arcade 2D. C'est une série qui est capé en 2 VBL soit 30 fps. Je connais seulement OutRun comme jeu d'arcade 2D capé en 2 VBL et...
David Shadoff retweeted
This is easily the most complex board I’ve ever made. Trion T120 FPGA connected to 112 buffer IO lines. I attach (much cheaper) daughter boards to it and use the FPGA to explore and measure their behavior. NEC V35 in the hot seat this week.
I see discussion among Japanese retro people I follow, about using things like a Raspberry Pi as a Famicom cartridge.
Somebody even said something like, "It's against regulations" (not sure what regulations).
For me, it's about enjoyment - so whatever goes to a certain degree...
Also, I feel that art itself is the attempt to convey more information than appears possible via a limited medium.
A landscape with paint and brushstrokes.
A conceptual image via haiku.
Animation via pixels.
The limitations of the medium are part of its charm.