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Pure Silicon Demo Coding: No CPU, No Memory, Just 4k Gates

https://www.a1k0n.net/2025/12/19/tiny-tapeout-demo.html
132•a1k0n•2h ago

Comments

glimshe•1h ago
Reminds me of college: "Hardware and Software are logically equivalent"
xphos•59m ago
As a computer science guy who interlops in computer engineering i really want to find time to build something cool like this and tapeout. The retro architectures for rendering are simple but fun! I love the project
oofbey•40m ago
It’s amazing and wonderful to see the Internet support these tiny cliques of interest. Having everybody connected leads to homogenization of culture in some ways, but it also supports these couple dozen (?) people around the world finding each other for this amazing little competition.
Neywiny•28m ago
I recommend getting started like the author did: simulation first, then FPGA. Honestly FPGA will take you very far. I always get a kick out of being able to design my own SoC. "Hmmm I need 9 separate I2C ports... Ok, copy block, paste paste paste..." Or if you have an operation in software that's taking forever you can write an accelerator for it
openinfrared•57m ago
Really cool!
Dwedit•53m ago
If you have registers, it's not "no memory".
hackernudes•42m ago
If you have flip flops, it's not "no memory".

If you have a ROM, it's not "no memory".

Needlessly pedantic!

I thought this was pretty cool but the first video didn't play. All this write up and I really just want to see the damn demo in action first! (Edit: reloaded the page and it worked. I still would like to see it on rela hardware!)

a1k0n•40m ago
Ah that's what I get for self hosting. What browser?

https://youtu.be/7xPS-0nydms

a1k0n•39m ago
And this thread shows all of them on real hardware: https://x.com/i/status/1992802154370011595
startupsfail•7m ago
Wow, I'm looking at current "Open Shuttles", a license to use 4KB of SRAM in the project is $2500. But it comes with Wishbone Bus interface!

> 1024x32 Commercial SRAM > CF_SRAM_1024x32 > Commercial SRAM: 1024 words x > 32 bits (4KB) with Wishbone Bus interface > Area: 0.17mm² > GPIOs: 0 > License: Commercial - $2500 per project

Pure Silicon Demo Coding: No CPU, No Memory, Just 4k Gates

https://www.a1k0n.net/2025/12/19/tiny-tapeout-demo.html
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