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    Daniel Wellman

    blog.danielwellman.com · Personal blog · on HN since 2008

    Daniel Wellman is a software developer whose blog features programming stories and software development essays.

    Visit blogHN submissions
    Retro ComputingProgramming
    What HN says

    HN commenters repeatedly link his story of a Tron lightcycle game on an Apple IIgs, where a bug let the cycle run into system memory.

    Stats for nerds
    16HN people shared it
    8linked in comments
    222story points
    Apr 2026last shared
    2010people per year2026

    Top posts on HN

    1. 1
      Real-life Tron on an Apple II GS
      15 people · 220 points · first shared 2008 · 18 comments on HN
    2. 2
      Five Things "This is Spinal Tap" Taught Me About Software Development
      1 person · 2 points · first shared 2011 · Discussion on HN

    What HN people wrote when they linked it

    • nitrogenJul 2013

      This has been posted before[0], two[1] and four[2] years ago, and is a delightful and fascinating read every time. It's fun to anthropomorphize the AI running amok in the system's memory, and wonder if we'll ever see something analogous happen with more sophisticated AIs in the future.

      [0] http://blog.danielwellman.com/2008/10/real-life-tron-on-an-apple-iigs.html

      [1] http://news.ycombinator.com/item?id=2087367

      [2] http://news.ycombinator.com/item?id=326356

    • DannoHungMar 2010

      > I did have some problems throughout the contest with my choice of C++ -- in fact without Valgrind, my entry may never have run correctly. (Turns out one of my algorithms was "escaping" off the border of the map and scribbling in RAM) But hey, I've been dealing with problems like that for more years than I care to count right now.

      :D

      http://blog.danielwellman.com/2008/10/real-life-tron-on-an-apple-iigs.html

    • barbsDec 2022

      Reminds me of a similar story of someone creating a Tron lightcycle game on an Apple IIgs. They had created a bug so that the lightcycle could travel off-screen and into memory, causing all sorts of undefined behaviour.

      https://blog.danielwellman.com/2008/10/real-life-tron-on-an-apple-iigs.html

    • jml7c5Apr 2026

      That reminds me of "Real Life Tron on an Apple IIgs". There's something so charming about system memory being misinterpreted.

      https://blog.danielwellman.com/2008/10/real-life-tron-on-an-apple-iigs.html

    • asdfsDec 2012

      Reminds me of this blog post about a Tron game that didn't check memory bounds either: http://blog.danielwellman.com/2008/10/real-life-tron-on-an-apple-iigs.html

    • LewtonDec 2013

      that reminds me of this awesome story
      http://blog.danielwellman.com/2008/10/real-life-tron-on-an-apple-iigs.html

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