Joined December 2019
99 Photos and videos
john3D retweeted
一个用 C 写的极简 Linux 终端文本编辑器,单文件、零依赖,支持鼠标、选区、复制粘贴、多级撤销和查找。 github.com/john3dc/litefe
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john3D retweeted
In this scenario, there is a grounded ship that the player can walk into. I’ve created two versions; which one do you think is better? Wishlist now: store.steampowered.com/app/4… #IndieGame #GraphicAdventure #PointAndClick #PixelArt #GameArt #GameDev #IndieDev
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john3D retweeted
🚀Here’s the z386 write-up: four months of work bringing the original 386 microcode to life in a real FPGA processor design. nand2mario.github.io/posts/2…

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john3D retweeted
Holly!I can’t believe this, you can play game boy on Paper S3 now.
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ChatGPT Images 2.0 vs ScummBar ❤️
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john3D retweeted
Squeezed more performance out of #386fpgacore on DE10-Nano 🚀 • Optimized branch prefetch → lower CPI (line 1→2) • Reworked paging L1 → 85MHz (from 75MHz, line 2→3) ≈30% uplift. This little core has serious potential.
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john3D retweeted
Good progress on #386fpgacore last month 🚀 Now running on Tang Console 138K DE10-Nano (MiSTer) I/D caches, lots of fixes Doom runs 75MHz with decent CPI 3DBench: 24.1 FPS Possibly the fastest 386 ever 🙂
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john3D retweeted
Do you love the #Gamecube, but don't love the console's loud cooling fan? Upgrade the 'Cube with our 40mm fan adapter plate and cable combo. Just add a 40mm 12v #Noctua fan and enjoy a less noisy console! retrofrog.net/products/gamec…
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john3D retweeted
Added SNES Brightness. Superswitch HD now outputs 24-bit HDMI. Scanlines added. Scale2x/3x edge smoothing added. English audio translation will be generated soon. youtu.be/ZMSws2-cYo4?si=8ntm…
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john3D retweeted
I'm working on a digital video output for the SNES. It's conceptually similar to the Megaswitch HD. No analog RGB. This is a demo of the prototype. youtu.be/doXgmHVf50g?si=IwrE…
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john3D retweeted
Soon...
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john3D retweeted
#Analogizer WIP support for Pocket Quake:
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31 Dec 2025
Port of the Sega Master System-Core for Tangnano20k based on smstang by @nand2mario
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john3D retweeted
Build myself the best VGA dongle for the Playstation 1, 2, 3 - up to 1080i for the PS2/3 - switch to toggle between PS1 and PS2/3 - guncun support Created by Jeff Chen
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🎙️ Our demo is now FULLY VOICED! Seeing dead people was just the beginning. Now you hear them too. Try the Shadows of the Afterland demo during Steam Next Fest (Oct 13-20) and unravel a supernatural mystery in 1960s Madrid. 👻 Play now: store.steampowered.com/app/2… #SteamNextFest
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john3D retweeted
29 Aug 2025
I’m off to Copenhagen for a week tomorrow, taking the #TangFPGA with me for some NES/SNES fun after the family’s gone to bed! Which colour shell looks best, Red vs Blue? Thanks to @nand2mario for the amazing #TangCore! Not bad for ~$40
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john3D retweeted
My 286-class CPU (real-mode only) is finally working in sim and we have PC-AT BIOS, VGA and IBM Basic working.😀 The CPU is written from scratch and uses a 5-stage pipeline, aiming to be fast enough to run early 90's games. The final core will be in between ao486 and PCXT_MiSTer.
17 May 2025
Trying to make something new for 8086/8088. Finally there's progress in coverage tests after many hours of work... x86 is such a complicated beast.😅😅
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john3D retweeted
Prepopulated Neptune pcbs have arrived and are up for order.
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john3D retweeted
20 Jun 2025
Replying to @blackhawkadvent
Happy #PointNClickFriday ! I want to share this because the creator doesn't have a twitter account. The classics series Gobliiins is back with Gobliiins 5 ! He's working right now on the 6th Game you can do a late pledge below ! Please leave a review ! store.steampowered.com/app/2…
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