Professor of Computer Science and Engineering at @UFSCarOficial. PhD in Computational Physics from @ifscUSP. Ham radio operator PY2UID. CTF player @ELTctfBR.
Joined July 2010
- Tweets 1,667
- Following 284
- Followers 978
- Likes 1,643
53 Photos and videos
May 19
Hey @OpenAI @OpenAI_Support. I'm a CS Prof trying to get Trusted Access for Cyber for DEF CON Quals. My ID is verified, but your system has a bug and denies access. Ticket #08981619 is stuck in a bot loop about biology. Can a human pls help me? 🙏
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May 21
Support replied again. The bot literally acknowledged my ID is verified for Cyber, but refuses to unlock the account because of imaginary "biology safety checks" that they claim they "cannot manually bypass". Any humans from Trust & Safety around? @OpenAIDevs @simonw
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Paulo Matias retweeted
Apr 1
BREAKING: Darklife Research has announced the first #RISCV processor fully designed in #Rust, the RUST-V!
github.com/darklife/rustv
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Paulo Matias retweeted
12 Feb 2025
Cologne Chip HFC-S PCI-A ISDN 2BDS0 (1998) | ISDN HDLC FIFO Controller with S/T and PCI interface and U-Chip Support.
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8 Aug 2024
the #DarkRISCV's 6th anniversary is approaching, so I am rushing to clean up the structure and add new features! by now, I fully separated the chaotic and monolithic DarkSoCV module in lots of separated modules, in order to make it more easy to expand it in the future! 🔥
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Paulo Matias retweeted
27 Jul 2024
A “real” crystal radio. With a rock.
This is temperamental and insensitive - but it’s working. This is pyrite, galena also works.
An active semiconducting device- and it’s a rock.
Excuse the messy soldering to the brass, I don’t have the ideal iron and flux here at the moment.
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Paulo Matias retweeted
2 Jul 2024
You never know until you see the Motorola core like this 😆
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17 Jun 2024
Analysis of the M4 by @techinsightsinc
„key design choice in the Apple M4 is the use of TSMC's high-performance standard cell library for CPU1“ …“UHD libraries for GPU and CPU2“ aka TSMC FinFlex
CPU1: P-Cores
CPU2: E-Cores
techinsights.com/blog/introd…
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Paulo Matias retweeted
13 Jun 2024
Desaparecimento de conteúdo online: 38% das páginas web que existiam em 2013 não existiam mais em 2023. pewresearch.org/data-labs/20…
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Paulo Matias retweeted
17 Jun 2024
🚨 500,000 Books Gone 🚨
We’re collecting your stories about what it means to lose access to more than 500,000 books, taken down by publishers. Share your experience to support our appeal: forms.gle/G2GXK6xwMZ3t8oHh9
#LetReadersRead
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Paulo Matias retweeted
15 Jun 2024
wow! this is pretty weird! 🔥
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Paulo Matias retweeted
13 Jun 2024
INTERVIEW: Bluespec RISC-V soft cores in Achronix FPGAs semiwiki.com/efpga/achronix/… #2DNoC #AiInference #FPGAAccelerator #Risc-v
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Paulo Matias retweeted
10 Jun 2024
Adoption of post-quantum encryption in TLS by human clients on the Internet (as seen by @cloudflare): from 0.005% to 17.3% in one year.
radar.cloudflare.com/adoptio…
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Paulo Matias retweeted
8 Jun 2024
although not a vector processor, the i860 (1989) was called "cray on a chip" because it was supposed to peak the same performance as a cray-1 (1975)... also interesting, the block diagrams for both are in the same style! 🔥
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Paulo Matias retweeted
3 Jun 2024
(続き
関連して、こちらは SmartNICのサーベイ: "A Comprehensive Survey on SmartNICs: Architectures, Development Models, Applications, & Research Directions", USC, arXiv, May 15, 2024 x.com/ogawa_tter/status/1791…
37ページ、220参考文献ととても充実した内容です。
ご参考にどうぞ。
16 May 2024
=>
"A Comprehensive Survey on SmartNICs: Architectures, Development Models, Applications, and Research Directions", USC, arXiv, May 15, 2024 arxiv.org/abs/2405.09499
37 pages, 220 references
Cyberinfrastructure Lab @ USC research.cec.sc.edu/cyberinf…
Elie Kfoury scholar.google.com/citations…
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Paulo Matias retweeted
24 May 2024
run on Verilog simulator and check the waveforms! no need intrusive breakpoints, print, etc. just run and check the bug directly in the processor pipeline and registers! 🔥
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Paulo Matias retweeted
16 May 2024
check this out
thanks to VS Code, YoWASP Toolchain Extension, and WebUSB, you can now program FPGAs with nothing but your cellphone o:3
marketplace.visualstudio.com…
vscode.dev/github/YoWASP/too…
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