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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 29 Jan 2013
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      @MehNitesh same FPU, as I said. The core is exactly the same, just more MHz.

      2 replies 0 retweets 0 likes
    2. Chris Ricks‏ @theevilmuppet 30 Jan 2013
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      Replying to @marcan42

      @marcan42 @MehNitesh ISA compatibility whilst sacrificing any SIMD advancement - strange. Any observations on cache configurations?

      1 reply 0 retweets 0 likes
    3. Hector Martin‏ @marcan42 30 Jan 2013
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      Replying to @theevilmuppet

      @theevilmuppet L1 is the same, L2 is different (this is the claimed eDRAM). 512K/2M/512K L2 cache per core (core 1 has more cache).

      1 reply 0 retweets 1 like
    4. Chris Ricks‏ @theevilmuppet 30 Jan 2013
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      Replying to @marcan42

      @marcan42 Is core 1 active in Wii mode? The asymmetric cache configuration is intriguing.

      1 reply 0 retweets 0 likes
    5. Hector Martin‏ @marcan42 30 Jan 2013
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      Replying to @theevilmuppet

      @theevilmuppet core 1 is not normally active in wii mode (the "wii core" is core 0, and half of its L2 is disabled for wii mode)

      2 replies 0 retweets 0 likes
    6. Fourth Storm‏ @thefourthstorm 3 Feb 2013
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      Replying to @marcan42

      @marcan42 Thanks for info on WiiU CPU. Can you share anything on ARM core(s)? Speculation pegs either ARM11 or CortexA5.

      1 reply 0 retweets 0 likes
    7. Hector Martin‏ @marcan42 3 Feb 2013
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      Replying to @thefourthstorm

      @MatthewNMorales the Starbuck? Same old ARM9 as the Wii. If you mean the controller/its host, they're ARM but only do video streaming.

      1 reply 0 retweets 0 likes
    8. Fourth Storm‏ @thefourthstorm 3 Feb 2013
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      Replying to @marcan42

      @marcan42 Intriguing - thanks for reply. So in all there are three ARM cores on the GPU? Can you verify which architecture this "host" is?

      2 replies 0 retweets 0 likes
      Hector Martin‏ @marcan42 3 Feb 2013
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      Replying to @thefourthstorm

      @MatthewNMorales I don't know what specific ARM arch the host is. We're treating it as a black box for now, since it has separate firmware.

      4:32 PM - 3 Feb 2013
      1 reply 0 retweets 0 likes
        1. Fourth Storm‏ @thefourthstorm 3 Feb 2013
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          Replying to @marcan42

          @marcan42 Thanks for clarification!

          0 replies 0 retweets 0 likes
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