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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. Hector Martin‏ @marcan42 11 Oct 2013
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      Replying to @EyeOfCore

      @EyeOfCore It doesn't. It has functionally identical cores to the Wii/GC/G3. PPC 750CL style (w/paired singles). Very weak SIMD.

      3 replies 0 retweets 0 likes
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    3. Hector Martin‏ @marcan42 12 Oct 2013
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      Replying to @nintendomaniac

      @nintendomaniac It's like taking a Pentium III and sticking it into a modern process. Sure, it'll run faster, but you're stuck with SSE1.

      1 reply 0 retweets 0 likes
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    5. Hector Martin‏ @marcan42 13 Oct 2013
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      Replying to @EyeOfCore

      @EyeOfCore Not my point. The point is that both P3 and PPC750 are outdated microarchitectures that lack support for modern SIMD.

      1 reply 0 retweets 0 likes
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    7. Hector Martin‏ @marcan42 13 Oct 2013
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      Replying to @nintendomaniac

      @nintendomaniac No. RISC is about doing simple things per instruction. SIMD is about doing simple things on multiple data units per insn.

      1 reply 0 retweets 0 likes
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    9. Hector Martin‏ @marcan42 13 Oct 2013
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      Replying to @nintendomaniac

      @nintendomaniac Of course, all of the x86 SIMD instruction sets that you listed are CISC-style (duh), while AltiVec and NEON are RISC-style.

      1 reply 0 retweets 0 likes
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      Hector Martin‏ @marcan42 14 Oct 2013
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      Replying to @EyeOfCore

      @EyeOfCore It's an R7xx, so it almost certainly can do OpenCL, but the drivers/software aren't there AFAICS.

      4:07 PM - 14 Oct 2013
      1 reply 0 retweets 0 likes
        1. Eubank josh‏ @eubank_josh 16 Oct 2013
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          Replying to @marcan42

          @marcan42 hmm, guess espresso doesnt seem to care much that it sucks at simd. Runs bink 2@1080p 30hz, 720p @60hz. Im honestly impressed.

          0 replies 0 retweets 0 likes
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