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sylefeb<a href="https://mastodon.online/tags/Silice" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Silice</a> now has preliminary support for <a href="https://mastodon.social/@whitequark" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@whitequark</a> YoWASP! Checkout Silice getting started instructions here: <a href="https://github.com/sylefeb/Silice/blob/draft/GetStarted_YoWASP.md" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://github.com/sylefeb/Silice/blob/draft/GetStarted_YoWASP.md</a>(draft branch)pip install yowasp-silice !

IRAP[Un système hydrothermal sur <a href="https://astrodon.social/tags/Mars" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Mars</a>] Dans les roches qui délimitent le cratère d'impact Jézéro, l'ensemble instrumental du rover <a href="https://astrodon.social/tags/Pereverance" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Pereverance</a> a détecté la présence de <a href="https://astrodon.social/tags/silice" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#silice</a> sous différentes formes : de l'opale, de la calcédoine, et du <a href="https://astrodon.social/tags/quartz" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#quartz</a>. Preuve d’une interaction eau-roche datant du tout début de l’histoire de la planète rouge ....Sachant que les roches siliceuses - l'opale notamment, ont des capacités remarquables à préserver les traces de <a href="https://astrodon.social/tags/vie" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#vie</a>, ne reste plus qu'à échantillonner ces roches puis à les rapporter sur Terre pour effectuer des analyses exobiologiques plus poussées.Info+ : <a href="https://www.irap.omp.eu/2025/03/du-quartz-decouvert-pour-la-premiere-fois-sur-mars-par-le-robot-perseverance-qui-atteste-danciennes-circulations-deau-sur-la-planete-rouge/" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://www.irap.omp.eu/2025/03/du-quartz-decouvert-pour-la-premiere-fois-sur-mars-par-le-robot-perseverance-qui-atteste-danciennes-circulations-deau-sur-la-planete-rouge/</a>

sylefebNearing a <a href="https://mastodon.online/tags/Silice" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Silice</a> main branch update, testing a5k and it still just works! This is a complete hardware implementation of Another World's VM on FPGA, here running on the mighty <a href="https://mastodon.online/tags/mch2022" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#mch2022</a> badge.a5k repo + write up: <a href="https://github.com/sylefeb/a5k" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://github.com/sylefeb/a5k</a> Silice: <a href="https://github.com/sylefeb/Silice/" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://github.com/sylefeb/Silice/</a>

sylefeb2/ To me, this is crazy ; when I started on <a href="https://mastodon.online/tags/FPGA" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#FPGA</a> and <a href="https://mastodon.online/tags/Silice" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Silice</a> back in 2018 I never *dreamed* of one day having my own design on silicon. Thanks <a href="https://mastodon.online/tags/tinytapeout" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#tinytapeout</a>, <a href="https://chaos.social/@matthewvenn" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@matthewvenn</a>, and everyone involved who makes this possible!<a href="https://tinytapeout.com/" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://tinytapeout.com/</a>

sylefeb1/ It freaking works!!! First <a href="https://mastodon.online/tags/ASIC" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#ASIC</a> designed with <a href="https://mastodon.online/tags/Silice" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Silice</a> renders a terrain!!!!! 🎉 🎉 🎉

sylefebIf you feel adventurous and want to try both <a href="https://mastodon.online/tags/tinytapeout" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#tinytapeout</a> (your own ASIC chip!) and <a href="https://mastodon.online/tags/Silice" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Silice</a> I prepared a template for tt09 (61 days to go!). <a href="https://github.com/sylefeb/tt09-silice-template" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://github.com/sylefeb/tt09-silice-template</a>Be warned: I am waiting for my tt07 and tt08 designs to come back to realize my mistakes 😅 .I followed the <a href="https://mastodon.online/tags/tinytapeout" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#tinytapeout</a> approach of doing the entire synthesis in github actions, with Silice seamlessly integrated in the mix. Write your code, commit+push, and get back an ASIC design ready to submit!

sylefeb<a href="https://mastodon.online/tags/Silice" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Silice</a> syntax highlight is now available as a vscode extension! <a href="https://marketplace.visualstudio.com/items?itemName=sylefeb.silice" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://marketplace.visualstudio.com/items?itemName=sylefeb.silice</a>

sylefeb2/ The design is written in <a href="https://mastodon.online/tags/Silice" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Silice</a> and exported to Verilog, and then synthesized to <a href="https://mastodon.online/tags/ASIC" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#ASIC</a> through the amazing <a href="https://mastodon.online/tags/TinyTapeout" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#TinyTapeout</a> framework. The terrain renderer fits on only two tiles, using some tricks 😎. Write-up pending.<a href="https://github.com/sylefeb/Silice" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://github.com/sylefeb/Silice</a>

sylefebJust updated the hardware <a href="https://mastodon.online/tags/Silice" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Silice</a> version of HumanShader (<a href="https://humanshader.com/" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://humanshader.com/</a>) by Inigo Quilez. Inigo made a new animated version just for us <a href="https://mastodon.online/tags/fpga" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#fpga</a> addicts 👍 . This is racing the beam, pipelined, no CPU. The code is very, very compact so it makes it a great exercise to put in hardware.Shadertoy: <a href="https://www.shadertoy.com/view/4ft3Wn" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://www.shadertoy.com/view/4ft3Wn</a> Silice code: <a href="https://github.com/sylefeb/Silice/blob/wip/projects/vga_demo/vga_humanshader.si" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://github.com/sylefeb/Silice/blob/wip/projects/vga_demo/vga_humanshader.si</a>

sylefeb3/3 If you are interested the entire classroom is documented in the <a href="https://mastodon.online/tags/Silice" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Silice</a> repository. Learn about <a href="https://noc.social/@risc_v" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@risc_v</a> SOC design and audio PWM. Have fun designing hardware on <a href="https://mastodon.online/tags/fpga" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#fpga</a>!<a href="https://github.com/sylefeb/Silice/tree/master/learn-silice/classroom/soc_wave_player" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://github.com/sylefeb/Silice/tree/master/learn-silice/classroom/soc_wave_player</a>

sylefeb1/3 This year again our students @telecomnancy did a great job writing a wave player SOC on <a href="https://mastodon.online/tags/fpga" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#fpga</a> with <a href="https://mastodon.online/tags/Silice" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Silice</a>! (cc BrunoLevy01) Also, I can only approve their choice of sound tracks 😋 (in general I got to discover many new music styles, thanks to all for this!)

sylefeb4/ I added some notes on how each effect was implemented in hardware on <a href="https://mastodon.online/tags/fpga" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#fpga</a> with links to <a href="https://mastodon.online/tags/Silice" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Silice</a> designs.<a href="https://github.com/sylefeb/gfxcat" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://github.com/sylefeb/gfxcat</a>

sylefeb1/ My collection of cool little graphics effects, all revisited in simple C with a minimal framework. They run in the browser! (link next)Made for my <a href="https://mastodon.online/tags/Silice" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Silice</a> <a href="https://mastodon.online/tags/fpga" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#fpga</a> projects, they should be fun and easy to port on your @risc_v SOC, @Raspberry_Pi project or as a <a href="https://mastodon.online/tags/shader" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#shader</a>.

Popolon 🇵🇸🇳🇨☮️🌳🎋 ᠫᠣᠫᠣᠯᠣᠨ🐎抱抱龙🐉 ⏚φI just seen that the main author of <a class="hashtag" href="https://pleroma.popolon.org/tag/silice" rel="nofollow noopener noreferrer" target="_blank">#Silice</a>, <a class="u-url mention" href="https://mastodon.online/@sylefeb" rel="nofollow noopener noreferrer" target="_blank">@sylefeb</a> is on Fediverse. As the nextpnr dependency is a bit heavy to compile, I compiled nextpnr, silice, and an uptodate version of OpenFPGAloader (official Arch package is one veersion behind) for ArchLinux for both x86_64 and RISC-V64 architectures.<a href="http://popolon.org/depots/ArchLinuxX86/fpga/" rel="nofollow noopener noreferrer" target="_blank">http://popolon.org/depots/ArchLinuxX86/fpga/</a><a href="http://popolon.org/depots/ArchLinuxRISC-V/fpga/" rel="nofollow noopener noreferrer" target="_blank">http://popolon.org/depots/ArchLinuxRISC-V/fpga/</a>

sylefebHow I remade Another World / Out of This World in hardware on the UP5K <a href="https://mastodon.online/tags/fpga" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#fpga</a>. Thread! ⬇️Detailed write up and full <a href="https://mastodon.online/tags/Silice" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Silice</a> design release! Includes bitstreams for icebreaker, mch2022, and a bonus board ;)➡️ <a href="https://github.com/sylefeb/a5k" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://github.com/sylefeb/a5k</a>

loic_fejozCongrats <a href="https://mastodon.social/@destevez" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@destevez</a>, well deserved for <a href="https://mastodon.gougere.fr/tags/MaiaSDR" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#MaiaSDR</a> !Meanwhile <a href="https://fosstodon.org/@BrunoLevy01" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@BrunoLevy01</a> and <a href="https://mastodon.online/@sylefeb" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@sylefeb</a> this might be of interest to you as, during the <a href="https://mastodon.gougere.fr/tags/SDR" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#SDR</a> Academy conference ( <a href="https://mastodon.gougere.fr/tags/sdra" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#sdra</a> <a href="https://2023.sdra.io/" rel="nofollow noopener noreferrer" target="_blank">https://2023.sdra.io/</a> ), they also call for more <a href="https://mastodon.gougere.fr/tags/FPGA" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#FPGA</a> people to submit for next year. A bit like when you Sylvain have presented <a href="https://mastodon.gougere.fr/tags/Silice" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Silice</a> to South Indian SDR User Group (SI-SDR-UG) <a href="https://youtu.be/fr4Dst1fQrk?t=10554" rel="nofollow noopener noreferrer" target="_blank">https://youtu.be/fr4Dst1fQrk?t=10554</a>

RISC-VRT from Sylvain Lefebvre (@sylefeb)If your are in Barcelona too, please stop by the poster session. Happy to talk about Iron, <a href="https://noc.social/tags/Silice" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Silice</a>, <a href="https://noc.social/@risc_v" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@risc_v</a> and <a href="https://noc.social/tags/fpga" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#fpga</a>. (Room MR 7+8). <a href="https://noc.social/tags/RISCVSummitEurope" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#RISCVSummitEurope</a>Original tweet : <a href="https://twitter.com/sylefeb/status/1666332849685815297" rel="nofollow noopener noreferrer" target="_blank">https://twitter.com/sylefeb/status/1666332849685815297</a>

sylefebAnd what do you do with a 1280 LUTs <a href="https://mastodon.online/tags/fpga" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#fpga</a> and 32MB of memory? You run Doom of course!!This is *very* slow (~0.3 FPS). But it shows that given enough RAM and time, even a small CPU can do a lot!Uses machydine QQSPI pmod and <a href="https://chaos.social/@tnt" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@tnt</a> fabulous doom-riscv port. The design is in <a href="https://mastodon.online/tags/Silice" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Silice</a>.

sylefebSource code + bitstream in the <a href="https://mastodon.online/tags/Silice" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Silice</a> repo (wip branch for now). Hope you'll find it useful!<a href="https://github.com/sylefeb/Silice/tree/wip/projects/qpsram" rel="nofollow noopener noreferrer" target="_blank">https://github.com/sylefeb/Silice/tree/wip/projects/qpsram</a>

sylefeba5k: Another World hardware VM on the ice40 UP5K <a href="https://mastodon.online/tags/fpga" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#fpga</a> (5280 LUTs, 128KB spram), now running and playable on the magnificent <a href="https://mastodon.online/tags/mch2022" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#mch2022</a> badge! Hard to capture, but it looks great. Really fun to play in this format. (written in <a href="https://mastodon.online/tags/Silice" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Silice</a>)

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