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marcan42's profile
Hector Martin
Hector Martin
Hector Martin
@marcan42

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Hector Martin

@marcan42

If it ain't broke, I'll fix it! I'm porting Linux to Apple Silicon Macs at @AsahiLinux. http://patreon.com/marcan  | http://github.com/sponsors/marcan 

Tokyo, Japan
marcan.st
Joined May 2009

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    1. Steve‏ @littlesteve 28 Dec 2020
      • Report Tweet
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      Steve Retweeted Hector Martin

      As much as I like verilog, it’s so easy to fuck up something that’s not immediately obvious. This is amazing for giving the power of HDLs to a non-HDL audiencehttps://twitter.com/marcan42/status/1343785608666259457 …

      Steve added,

      Hector Martin @marcan42
      Notice how ~none of that is HDL (it's the empty first class that does nothing). The second class just tells Glasgow what you need for your applet, like a list of pin names (which become command line options for the user to specify the pin mapping).
      Show this thread
      1 reply 0 retweets 3 likes
    2. Hector Martin‏ @marcan42 29 Dec 2020
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      Replying to @littlesteve

      You still need to know how HDL works when you write the actual applet code, but we take care of all the boilerplate, and nMigen provides tons of useful abstractions to avoid common gotchas. So it lets you build *useful* things even if you're not very experienced.

      3 replies 1 retweet 4 likes
    3. Felix Domke‏ @tmbinc 29 Dec 2020
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      Replying to @marcan42 @littlesteve

      Disclaimer: I *love* glasgow. However, I found it non-trivial to get started; partially this is the "fault" of the wonderfully engineered, well-abstracted/layered sample plugins. "Just adding a simple thing" turns into reading a lot of code to understanding the framework.

      1 reply 0 retweets 1 like
    4. Felix Domke‏ @tmbinc 29 Dec 2020
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      Replying to @tmbinc @marcan42 @littlesteve

      This is in strong contrast to an under-engineered framework like Arduino - as much as I dislike Arduino, you're maximum of 2 layers apart from assembly, and everything is easily hackable. With glasgow, everything is hackable also but only after understanding the custom framework.

      3 replies 0 retweets 1 like
    5. Hector Martin‏ @marcan42 29 Dec 2020
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      Replying to @tmbinc @littlesteve

      Do you mean (n)Migen, or Glasgow? Obviously you need to know nMigen, but if you found the framework confusing, I'd like to know why. You should be able to take the example applet, fill in a pin list, and peek at some other applets to see how the HDL interfaces with pins and FIFOs

      2 replies 0 retweets 0 likes
      Hector Martin‏ @marcan42 29 Dec 2020
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      Replying to @marcan42 @tmbinc @littlesteve

      That said, if you want to hack on an existing applet, then yes, depending on which one you look at some have quite a bit of complexity due to the engineering that went into making it all flexible.

      8:09 AM - 29 Dec 2020
      0 replies 0 retweets 0 likes

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