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a1k0n

HN member
Joined
Fri, Mar 09, 2007, 12:38 AM UTC
HN karma
1,974
Public activity
347 items

About a1k0n

the obfuscated C donut guy.

https://www.a1k0n.net/

Recent public activity

  1. story
  2. comment
    Comment #46346505

    CORDIC is more accurate, but takes as many iterations as you have bits of precision in your angle. Another demo called Warp in this contest used pipelined CORDIC to do atan2 on eve…

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    Comment #46340562

    Yeah, it is exact in this specific circumstance. But yes, it's exactly the same trick; I also enjoyed that video in my Youtube recommender feed last week!

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    Comment #46338434

    And this thread shows all of them on real hardware: https://x.com/i/status/1992802154370011595

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    Comment #46338419

    Ah that's what I get for self hosting. What browser? https://youtu.be/7xPS-0nydms

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    Comment #42679294

    lmao! that was so cringe I unlisted it from the main index. who is "we"? part 3 is to find the secp256k1 private key for satoshi's bitcoins

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    Comment #36855443

    Yes, it has to in fact. If you have zero context to attend to in a transformer, and you try to predict the first token, you effectively are multiplying a zero-vector by the attenti…

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    Comment #34385851

    For finding interesting Ethereum addresses on the GPU (uses SHA3 instead of MD5) there's a tool called profanity. Amusingly the tool was archived by the author years ago, and just …

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    Comment #34382007

    > If anyone has an idea why the TIA’s designers used LFSRs for this stuff, I’d love to hear about it. I'm guessing because a counter would have ripple carry (i.e. five extra gate d…

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    Comment #26394366

    https://github.com/a1k0n/asciitracing sort of combines those things also

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    Comment #25791674

    I have to admit I stole the idea from this 256-byte demo (after it wiped the floor with the one I made at a demo party): http://www.pouet.net/prod.php?which=5327

  16. comment
    Comment #25791356

    I tweeted a screenshot of the Jupyter Notebook session I used to create the code at the bottom: https://twitter.com/a1k0n/status/1301261285800030208

  17. comment
    Comment #25791210

    Oh, yeah. I had to do that for the RISC-V port, too. I'll update the post, thanks.

  18. comment
    Comment #25787984

    Yeah, that one wasn't too hard but it's nice to have it to check your work. I didn't go into it in the post, but the real power of SymPy is its cse() function, which I used to do a…

  19. comment
    Comment #23885350

    Huh, it has 15 registers? AX, BX, CX, DX, SI, DI, BP, SP; CS, DS, ES, SS, IP, flags. What am I missing?

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    Comment #21831957

    i mv'd config to config~, then made a copy of it as config. the old file, now renamed to config~, is still read-only.

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    Comment #21831955

    yes yes, it is owned by me. i edited my username in the "screenshot".

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    Comment #21827826

    after updating to Catalina I was suddenly unable to edit my own ~/.ssh/config. I still can't figure out why not. I could rename it and make a copy, though, and the old one shows th…

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    Comment #20085774

    I love @foone's content, but I had to unfollow him because his output is so prodigious my entire Twitter feed became just @foone. On second thought, having seen the rest of what Tw…

  24. comment
    Comment #19040718

    Maybe it's filtering by mod/xm and he only released S3Ms?

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