iiinova — where your digital self keeps evolving

Logic Destroyer — Proven in Silicon. @logicdestroyer.bsky.social · 1h

Pretty fucking cool to see 1.5473 CPI on this thing. Four cores, Linux, MMU, DDR3, caches, video, audio, networking, SDIO. When this project started, it was a bare-metal pipelined CPU running directly from block RAM. No DDR, no caches. Around 1.1 CPI.

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Logic Destroyer — Proven in Silicon. @logicdestroyer.bsky.social · 16/09/2026

That’s me with @mole99.fosstodon.org.ap.brid.gy last fall at wafer.space Run 1, with the layout open in KLayout.

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Logic Destroyer — Proven in Silicon. @logicdestroyer.bsky.social · 04/09/2026

Friday is for demos. StealthV. RISC-V FPGA SoC. The Unix machine.

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mole99 @mole99.fosstodon.org.ap.brid.gy · 03/09/2026

I got to try the RISC-V board of my friend Hirosh. It includes an open-source Linux-capable RISC-V CPU with MMU! What's special about it is that this SoC has been taped out on the open-source GF180MCU process using wafer.space 🚀 Since we're in different […] [Original post on fosstodon.org]

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Logic Destroyer — Proven in Silicon. @logicdestroyer.bsky.social · 02/09/2026

Finally turned my FPGA into a proper Debian machine. No more fucking BusyBox. Vim with syntax highlighting, Rust compiler, readelf, objdump, nm, GCC, G++, real Python. No MicroPython bullshit. Don't believe me? Here's the proof. Fucking awesome.

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Logic Destroyer — Proven in Silicon. @logicdestroyer.bsky.social · 01/09/2026

Looks like native GCC and G++ are now working on my dual-core. Fuck yeah. KianV. StealthV.

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Logic Destroyer — Proven in Silicon. @logicdestroyer.bsky.social · 29/08/2026

Small update: I now have dual-core SMP with a CoreMark > 2, without an L2 cache. Pretty damn cool. KianV StealthV Gangster SoC

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Logic Destroyer — Proven in Silicon. @logicdestroyer.bsky.social · 22/08/2026

Quick KianV StealthV Linux SoC update: the dual core is now playing MP3s while rendering the MIT Bunny with Gouraud shading. Nice to see it all running together!

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Logic Destroyer — Proven in Silicon. @logicdestroyer.bsky.social · 21/08/2026

Still on vacation, bored, family’s not around… so I’m writing demos for my SoC because I don’t feel like doing logic design right now. 😄 StealthV This is a custom wizard.

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Logic Destroyer — Proven in Silicon. @logicdestroyer.bsky.social · 11/08/2026

NetBSD is now running on my 32-bit RISC-V KianV ASIC. As far as I can tell, this is the first documented case of NetBSD running on a physical 32-bit RISC-V ASIC. If anyone knows of an earlier one, please let me know. Many thanks to @mith.ro , and @mole99.fosstodon.org.ap.brid.gy

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Logic Destroyer — Proven in Silicon. @logicdestroyer.bsky.social · 08/08/2026

StealthV is now a quad-core Linux-capable RISC-V SoC.

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Logic Destroyer — Proven in Silicon. @logicdestroyer.bsky.social · 04/08/2026

Bro, I don't need an Amiga. I built my own Unix machine, and it does Amiga-style graphics. StealthV, from the Silicon Proven Bro.

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Logic Destroyer — Proven in Silicon. @logicdestroyer.bsky.social · 04/08/2026

Bad Apple!! on StealthV, my custom Linux RISC-V FPGA SoC. Music: Alstroemeria Records feat. nomico PV: Anira

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Jan Gray @jangray.bsky.social · 17/07/2026

Cannot love this enough

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Logic Destroyer — Proven in Silicon. @logicdestroyer.bsky.social · 03/08/2026

My custom RISC-V SoC, StealthV, is running Linux and rendering this Stanford Bunny demo at around 29 FPS. Audio playback is running in parallel, making this a great test of the complete system working together.

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Logic Destroyer — Proven in Silicon. @logicdestroyer.bsky.social · 03/08/2026

I just got my friend Leo Moser's custom GF180MCU Fabulous FPGA board, produced by WaferSpace. It already has a design loaded, so I'll be playing around with it over the next few days and see what I can build with it. A custom FPGA is just insanely cool. Leo is an absolute legend.

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Logic Destroyer — Proven in Silicon. @logicdestroyer.bsky.social · 01/08/2026

A C64 emulator is running on my Linux SoC, StealthV (marchID: 0x34), successfully executing Choplifter (1982).

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Logic Destroyer — Proven in Silicon. @logicdestroyer.bsky.social · 01/08/2026

When the C64 can truly shine on your soft-core Linux SoC.

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Logic Destroyer — Proven in Silicon. @logicdestroyer.bsky.social · 01/08/2026

Bro... it's kind of crazy. You build a Linux SoC from scratch on an FPGA, get Linux running on it, and your original goal was simply to run a C64 emulator on your own Linux system. KianV StealthV.

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Logic Destroyer — Proven in Silicon. @logicdestroyer.bsky.social · 27/07/2026

MP3 playback under Linux while running X11 Another milestone for my custom StealthV RISC-V SoC. The system now plays 48 kHz, 256 kbps CBR MP3 audio entirely in software while running Linux and X11. No dedicated MP3 decoder. Everything is handled by my own RISC-V CPU and hardware.

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Logic Destroyer — Proven in Silicon. @logicdestroyer.bsky.social · 26/07/2026

Part 2: Doom under Linux with audio, not bare metal My custom Linux RISC-V SoC just became an arcade game machine. I originally set out to build a Unix RISC-V workstation. Now it runs Doom and Abuse under Linux on my custom StealthV RISC-V SoC.

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Logic Destroyer — Proven in Silicon. @logicdestroyer.bsky.social · 24/07/2026

My custom Linux RISC-V SoC just became an arcade game machine. I set out to build a Unix RISC-V workstation. Now it's running games on my custom Linux RISC-V StealthV SoC. The games run under Linux with virtual memory and render directly to the Linux framebuffer, not bare metal.

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Logic Destroyer — Proven in Silicon. @logicdestroyer.bsky.social · 15/07/2026

My KianV RISC-V ASIC is booting mainline Linux with SDRAM. Everything was developed from scratch. The board was made by @machdyne , and he also did the bring-up. Huge thanks to him! Damn... a 32-bit Linux machine running on my own ASIC. #RISCV #ASIC #Linux #SDRAM

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Logic Destroyer — Proven in Silicon. @logicdestroyer.bsky.social · 22/07/2026

StealthV can now edit C programs under X11 at XGA+ resolution, compile them with TCC, and run them. Not bad.

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Logic Destroyer — Proven in Silicon. @logicdestroyer.bsky.social · 18/07/2026

MP3 playback on a custom Linux RISC-V FPGA SoC. What more could you want? StealthV machine

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Logic Destroyer — Proven in Silicon. @logicdestroyer.bsky.social · 17/07/2026

It’s alive, and I could probably push the clock another 10 MHz, but I’m not interested in that right now. We’re running at 24 MHz for the time being.

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Logic Destroyer — Proven in Silicon. @logicdestroyer.bsky.social · 15/07/2026

it's fanatastic

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Logic Destroyer — Proven in Silicon. @logicdestroyer.bsky.social · 15/07/2026

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Matt Venn @mattvenn.net · 06/07/2026

HDL is the #ASIC terminology of the week! In the last month, HDL has been the 20th most popular out of 42 terms.

zerotoasiccourse.com

HDL

HDL is the ASIC terminology of the week!

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Logic Destroyer — Proven in Silicon. @logicdestroyer.bsky.social · 28/06/2026

Yo, testing KianV StealthV on the Genesis 2 now with 1 GB of RAM and 100 MHz. This feels fucking awesome. DDR RAM is pure porn. Custom RISC-V Linux running on my own five-stage pipeline CPU. What more could you want? Of course, a badass out-of-order core is coming later.

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Jan Gray @jangray.bsky.social · 18/06/2026

#FPGA #RISCV Reinventing the wheel, I wrote a frugal 32b/64b RISC-V compliant div/rem, early out, nonrestoring radix-2 divider. * 32b: 640 MHz, 155 LUTs, 14-36 cycles * 64b: 520 MHz, 289 LUTs, 22-68 cycles (UltraScale+ -1 fabric) Per Jan's Razor, planning to share one div/rem unit per 2-4 PEs.

Vivado device view of a critical path in a fast frugal 32b divider.

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Logic Destroyer — Proven in Silicon. @logicdestroyer.bsky.social · 12/06/2026

OK... my new KianV StealthV 5-stage pipelined SoC now runs Rust. 16 KiB 2-way I$ 16 KiB 2-way D$ 2-way ITLB/DTLB 50 MHz RISC-V SoC 133 MHz SDRAM burst R/W Interrupt-driven SPI Ethernet UART TX/RX FIFOs FIFO-based SD card FIFO-based SPI Designed from scratch. Boots Linux. Runs Rust.

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Logic Destroyer — Proven in Silicon. @logicdestroyer.bsky.social · 31/05/2026

My 2023 KianV uLinux SoC (RV32IMA), fabricated through @tinytapeout.com TT05/TT06, now supports dual boot with Zephyr RTOS and MicroPython on real ASIC hardware.

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Logic Destroyer — Proven in Silicon. @logicdestroyer.bsky.social · 31/05/2026

Linux 7.1.0-rc2 running on FPGA hardware on my KianV Stealth RV32IMA+SV32 SoC. 5-stage pipeline, SV32 MMU, GShare predictor, burst SDRAM. 102.07 CoreMark @ 50 MHz (CPI 1.68) under Linux. Everything implemented from scratch. marchid 0x34.

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Reposted by Logic Destroyer — Proven in Silicon.

Matt Venn @mattvenn.net · 07/01/2025

I’m always looking for fun ways to show how chips work. This interactive simulation actually lets you look inside a digital design as it’s running! It’s a cellular automata by Alexander Mordvintsev and he taped out on Tiny Tapeout 9. And no, it’s not a recording! znah.net/tt09/

znah.net

TinyTapeout VGA 1D Cellular Automata Simulation

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Logic Destroyer — Proven in Silicon. @logicdestroyer.bsky.social · 06/01/2025

I'm here because I miss the #TinyTapeout folks and a few others who aren't interested in X. Just to see what they're up to.

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Matt Venn @mattvenn.net · 30/12/2024

I just booted uLinux on @tinytapeout.com 6! Very easy to use flashing tool by @urishaked.bsky.social made it easy to test Hirosh's SoC! Also big thanks to @rebelmike.bsky.social & Leo Moser for the PMOD we're using for designs that need external memory.

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Logic Destroyer — Proven in Silicon. @logicdestroyer.bsky.social · 06/01/2025

I couldn’t shake the idea of turning the iCE40HX8K from @machdyne into a Linux MMU network machine. It was true hardware/software co-design to make it happen. The Kianv RISC-V Linux/XV6 SoC is full of surprises...

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