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oe1cxw's profile
Claire Xen 🏳️‍⚧️🏳️‍🌈🧙🏻‍♀️ BLM 🏴🚩
Claire Xen 🏳️‍⚧️🏳️‍🌈🧙🏻‍♀️ BLM 🏴🚩
Claire Xen  🏳️‍⚧️ 🏳️‍🌈 🧙🏻‍♀️ BLM  🏴 🚩
@oe1cxw

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Claire Xen  🏳️‍⚧️ 🏳️‍🌈 🧙🏻‍♀️ BLM  🏴 🚩

@oe1cxw

Neurodiverse trans geek girl. Yosys, RISC-V, SAT/SMT.

She/her/hers
clairexen.net
Joined September 2014

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    1. Aliaksei Chapyzhenka‏ @wavedrom 31 Dec 2016
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      @oe1cxw @folknology Any ideas on the good #ice40 compression method with compact decompression library for ARM host?

      3 replies 0 retweets 1 like
    2. Claire Xen  🏳️‍⚧️ 🏳️‍🌈 🧙🏻‍♀️ BLM  🏴 🚩‏ @oe1cxw 31 Dec 2016
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      Replying to @wavedrom @folknology

      Simple experiment with huffman coded RLE for zero bits: http://svn.clifford.at/handicraft/2016/ice40compr/ …pic.twitter.com/uJ0SmnAosG

      2 replies 0 retweets 3 likes
    3. Al‏ @folknology 1 Jan 2017
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      Replying to @oe1cxw @wavedrom

      what percentage of gates were used?

      2 replies 0 retweets 1 like
    4. Claire Xen  🏳️‍⚧️ 🏳️‍🌈 🧙🏻‍♀️ BLM  🏴 🚩‏ @oe1cxw 1 Jan 2017
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      Replying to @folknology @wavedrom

      This example is an approximately half-full (hx8k) FPGA:pic.twitter.com/xUlcbYmU1o

      1 reply 1 retweet 4 likes
    5. Al‏ @folknology 1 Jan 2017
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      Replying to @oe1cxw @wavedrom

      That shows (predictably) the limitations of RLE quite clearly, maybe other methods can improve with higher gate counts..

      1 reply 0 retweets 0 likes
    6. Claire Xen  🏳️‍⚧️ 🏳️‍🌈 🧙🏻‍♀️ BLM  🏴 🚩‏ @oe1cxw 1 Jan 2017
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      Replying to @folknology @wavedrom

      J1a is pretty much as tight as it gets (hx1k). Still 33% space savings. ("gzip -9" achieves 42% space savings.)pic.twitter.com/7rTHUssgT7

      2 replies 0 retweets 3 likes
    7. Aliaksei Chapyzhenka‏ @wavedrom 1 Jan 2017
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      Replying to @oe1cxw @folknology

      Agree, 33% is a good start. Could you elaborate more on the algorithm your are using?

      1 reply 0 retweets 1 like
    8. Claire Xen  🏳️‍⚧️ 🏳️‍🌈 🧙🏻‍♀️ BLM  🏴 🚩‏ @oe1cxw 1 Jan 2017
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      Replying to @wavedrom @folknology

      I am storing the distances between ones. I'm using a simple Huffman code to use fewer bits for small distances.

      4 replies 0 retweets 0 likes
    9. Aliaksei Chapyzhenka‏ @wavedrom 1 Jan 2017
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      Replying to @oe1cxw @folknology

      yes, this way you are winning allot on Zero and loosing on Ones. Here is 128'b1 example:pic.twitter.com/GxGyXZxqym

      2 replies 0 retweets 0 likes
      Claire Xen  🏳️‍⚧️ 🏳️‍🌈 🧙🏻‍♀️ BLM  🏴 🚩‏ @oe1cxw 2 Jan 2017
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      Replying to @wavedrom @folknology

      Improved version: http://svn.clifford.at/handicraft/2016/ice40compr … worst case is now -15%.pic.twitter.com/p9SN6ny1Hi

      4:42 PM - 2 Jan 2017
      • 6 Likes
      • Javier Baliñas RenéRebe™ Aliaksei Chapyzhenka John Regehr Carlos Parra Charles Goodier (⧖)
      2 replies 0 retweets 6 likes
        1. New conversation
        1. Claire Xen  🏳️‍⚧️ 🏳️‍🌈 🧙🏻‍♀️ BLM  🏴 🚩‏ @oe1cxw 2 Jan 2017
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          Replying to @oe1cxw

          .@wavedrom @folknology Quick upload is likely most important with small designs that synthesize quickly. Here are two very small designs:pic.twitter.com/IaBkpMO5ZV

          1 reply 0 retweets 5 likes
        2. Claire Xen  🏳️‍⚧️ 🏳️‍🌈 🧙🏻‍♀️ BLM  🏴 🚩‏ @oe1cxw 2 Jan 2017
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          Replying to @oe1cxw @wavedrom @folknology

          This are the two hello world examples I use when I give workshops at events. https://github.com/cliffordwolf/icestorm/tree/master/examples/icestick …

          1 reply 1 retweet 3 likes
        3. Show replies
        2. New conversation
        1. Aliaksei Chapyzhenka‏ @wavedrom 2 Jan 2017
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          Replying to @oe1cxw @folknology

          Great! Can you compile it for bare-metal ARM? What is the code size?

          2 replies 0 retweets 0 likes
        2. Al‏ @folknology 3 Jan 2017
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          Replying to @wavedrom @oe1cxw

          Looking good

          0 replies 0 retweets 0 likes
          3. End of conversation

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