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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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    Hector Martin‏ @marcan42 2 Apr 2018
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    Has anyone ever made an LCD TV fast enough that it works with Duck Hunt? If latency is the only problem, there is no *fundamental* reason why an LCD processor cannot be really, really fast. Certainly ~2-3 lines of lag should be achievable.

    9:04 PM - 2 Apr 2018
    • 3 Retweets
    • 19 Likes
    • Tammi Carlos Solís Jeff Charles Moyes Jed Davis 🏳️‍🌈 Alex Mr Bill Kaitlyn Molinas Galileo
    7 replies 3 retweets 19 likes
      1. Hector Martin‏ @marcan42 2 Apr 2018
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        The LCD pixels themselves have a longer switching time (probably on the order of dozens of lines' worth of signal). But Duck Hunt does not rely on horizontal timing as far as I know, only frame-by-frame timing (with the white squares).

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      1. mangy git pull‏ @mattdkerr 2 Apr 2018
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        Replying to @marcan42 @munin

        OLED?

        0 replies 0 retweets 1 like
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      2. OSS FPGA & ASIC EDA tools‏ @ico_TC 2 Apr 2018
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        Replying to @marcan42

        What is Duck Hunt?

        1 reply 0 retweets 0 likes
      3. Claire Xen  🏳️‍⚧️ 🏳️‍🌈 🧙🏻‍♀️ BLM  🏴 🚩‏ @oe1cxw 3 Apr 2018
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        Replying to @ico_TC @marcan42

        Famous NES game that uses the "NES Zapper" light gun.

        1 reply 0 retweets 2 likes
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      1. Michael Welling‏ @QwertyEmbedded 2 Apr 2018
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        Replying to @marcan42

        pic.twitter.com/CmEMYqyvQb

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      2. movax‏ @movszx 3 Apr 2018
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        Replying to @marcan42

        I saw an old Phillips schematic that used a combo of a Phillips ASIC + Cyclone II to do the job. It must all be ASICs from Marvell/Broadcom these days right?

        1 reply 0 retweets 0 likes
      3. Hector Martin‏ @marcan42 3 Apr 2018
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        Replying to @movszx

        Yeah, pretty much. Either a single chip for monitors or sometimes a processor/scaler, an analog front-end, and perhaps an HDMI mux for TVs and such. Panasonic & other vendors are also common, and for frontends you get vendors like Analog Devices & others.

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      2. Galileo‏ @G4lile0 3 Apr 2018
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        Replying to @marcan42

        If this information is right, LCD need a big timing improvement from around 70ms to 16ms... https://hackaday.com/2015/11/16/resurrecting-duckhunt/ …

        1 reply 0 retweets 0 likes
      3. Galileo‏ @G4lile0 3 Apr 2018
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        Replying to @G4lile0 @marcan42

        Maybe will be easier to hack the zapper.. (raspberry zero+camera+OpenCV)

        1 reply 0 retweets 0 likes
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      1. Andrew‏ @agret 3 Apr 2018
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        Replying to @marcan42

        https://beardypig.github.io/2015/12/11/nes-zapper-experiments-1/ …

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