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Lauren Tyler
09-28-2018 at 04:06 PM
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Wall Entry at 09-28-2018 11:05 PM

So yeah, I'm thinking of submitting some Atari 2600 EMU scores, but I can't find the rules about submitting Atari 2600 EMU scores. Can someone help me out?

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  1. Rogerpoco's Avatar

    Threw this together real quick, not sure if it helps:



    There are a few settings you need to show, but it isn't as bad as some PC EMU's.


    Good Luck!!!

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  2. Lauren Tyler's Avatar

    I guess what I needed to know was if a specific version of Stella was required, as well as which settings needed to be shown?

  3. Rogerpoco's Avatar

    I think any version of Stella is ok, and the settings I *attempted*(sorry, I'm only 1/2 techie)to show are the relevant ones.

    Make sure to click on "Game Properties", to show the MD5 in the Cartridge tab,(I don't know what that is, but it's there), then click the console tab to show difficulty settings.


    Again, press the "P" key to show the small black bar I the upper left, which shows framerate, is a pain getting used to, but jut leave it open the entire performance.

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  4. Lauren Tyler's Avatar

    The P key? I thought that usually paused the emulator.

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  5. Rogerpoco's Avatar

    Quote Originally Posted by Lauren R. Tyler

    The P key? I thought that usually paused the emulator.


    Makes sense, but in this case it toggles the framerate screen on and off.

  6. Barthax's Avatar

    This is both the good and bad of not having global rules.


    Good: The community works together to ensure the rules are consistently updated and meets the requirements of the community.

    Bad: They're not written down in a centralised location for easy access.

    Good: They're not written down in a centralised location which gets out of date because nobody updates it.

    Good: They're not written down in a centralised location with global edit access so any numpty can change the words randomly to meet their claim.

    Bad: New findings in the community which affect global behaviour have to ripple out to the rest of the community in small waves leaving inconsistency during the ripple effect.


    When recording, you're aiming to show the MD5 and have the NTSC displayed with the frame rate during play (almost all emulation submissions are the NTSC version of the game - some games only released in PAL versions are the exception). Then show whatever else is necessary to match the rules: game switches, game selection, etc.


    MD5 is a algorithm to generate a number based on the content of the file it checks. It has the property that a simple edit to the ROM file will typically generate a wildly different MD5 value* - giving the adjudicators a snapshot of the authenticity of the ROM file.

    * MD5 does have a minor flaw that I'm aware of which has the potential to be exploited to generate the same MD5 value for a different file**. However, in order to achieve the matching MD5 and still have a working Atari 2600 game with whatever cheat embedded so that it appears to be the original game is a very very tall tale to meet (but not impossible).

    ** MD5 values should never be considered unique... Not ever, no never, no not even then... just never. The purposes here is just a confidence boost that it is very likely to be the same file everyone else is using.

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    Updated 09-29-2018 at 02:57 AM by Barthax
  7. nads's Avatar

    To show the Framerate, Alt-L does the trick.

    Glad to see that you will start join in on the action!

    If you have a game that flickers a lot, ALT -P to enable the phosphor effect.



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  8. Lauren Tyler's Avatar

    Will do.

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