Paulo Matias

Professor of Computer Science and Engineering at @UFSCarOficial. PhD in Computational Physics from @ifscUSP. Ham radio operator PY2UID. CTF player @ELTctfBR.

[Paulo Matias @thotypous]

@OpenAI @OpenAI_Support 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

[Paulo Matias @thotypous]

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? 🙏

[Marcelo Samsoniuk @samsoniuk]

BREAKING: Darklife Research has announced the first #RISCV processor fully designed in #Rust, the RUST-V!
https://t.co/nreHOK6nsN

[A. I. (Macro Photography)🔬 @MacroWorld21]

Cologne Chip HFC-S PCI-A ISDN 2BDS0 (1998) | ISDN HDLC FIFO Controller with S/T and PCI interface and U-Chip Support.

[Paulo Matias @thotypous]

@_natanael666 manda ele ler o livro de Mecânica do Symon

[Marcelo Samsoniuk @samsoniuk]

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! 🔥

[Luke Weston @lukeweston]

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.

[Sipeed @SipeedIO]

Take a deep breath into the sub-micron world!
Try photomicrography with the OV2640 chip as the subject:
1. taken by phone
2. Normal digital microscope (~$40)
3. #RISCV #MaixCAM and a metallurgical microscope
Would you like MaixCAM to come out with a photomicrography kit?

[Paulo Matias @thotypous]

@david_aug @caiocgomes Essa situação não é análoga à que aconteceu no Windows. Veja que o kernel aí está "Not tainted", ou seja, não tem nenhum módulo proprietário carregado. O panic ocorreu numa chamada a bpf_prog_load. O bug foi do próprio Linux, o Falcon em userspace jamais deveria causar um crash.

[A. I. (Macro Photography)🔬 @MacroWorld21]

@samsoniuk @BoscoMac You never know until you see the Motorola core like this 😆

[Andreas Schilling 🇺🇦 @aschilling]

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

https://t.co/DMuS9Tkg3h

[Paulo Matias @thotypous]

@ayubio @arphelreal Provavelmente ele tá fazendo confusão entre unidades (bit/s vs byte/s)

[Ayub | Internet propriamente dita @ayubio]

Desaparecimento de conteúdo online: 38% das páginas web que existiam em 2013 não existiam mais em 2023. https://t.co/0umrK0EB5v

[Internet Archive @internetarchive]

🚨 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: https://t.co/vKaRSR5lwW

#LetReadersRead

[Marcelo Samsoniuk @samsoniuk]

wow! this is pretty weird! 🔥

[SemiWiki @DanielNenni]

INTERVIEW: Bluespec RISC-V soft cores in Achronix FPGAs https://t.co/e54bQ7uDYS #2DNoC #AiInference #FPGAAccelerator #Risc-v

[Bas Westerbaan @bwesterb]

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.

https://t.co/eIeNQUyd19

[Marcelo Samsoniuk @samsoniuk]

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! 🔥

[OGAWA, Tadashi @ogawa_tter]

@Cra2yPierr0t (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 https://t.co/WMO58jdfoi
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。

[Marcelo Samsoniuk @samsoniuk]

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! 🔥