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  1. Atari Systems

    1. Atari General

      A general discussion for Atari-related topics that aren't covered by a specific Atari console or computer forum.

      20.3k
      posts
    2. Atari 2600

      The Atari 2600 is the system that started it all for Atari, and is by far the most popular classic gaming console. This forum covers all 2600 systems produced by Atari, as well as 2600-compatible consoles produced by third-parties.

      707.6k
      posts
    3. Atari 5200

      The Atari 5200 was Atari's second cartridge-based game console. Based on the Atari 8-bit computer line and labeled the "SuperSystem", the 5200 was Atari's answer to growing competition in a market they were losing control over.

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      posts
    4. Atari 7800

      The Atari 7800 ProSystem is a contemporary of the Nintendo Entertainment System and the Sega Master System. Based on extensive feedback from Atari customers, the 7800 features a streamlined design, backward compatibility with the 2600, a powerful graphics processor, and simplified controllers.

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      posts
    5. Atari Lynx

      Lynx was Atari's first portable game system, and world's first color handheld. It was designed by Epyx and the engineers who created the Amiga. Ahead of its time, the Lynx sported a backlit color screen, stereo sound (in model 2) and an impressive range of games. Check out our rarity guide or explore many games listed on Atari Gamer.

       

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      posts
    6. Atari Jaguar

      Atari's last game console, the Atari Jaguar represented a huge leap in technology from previous offerings. Featuring a 64-bit architecture, the Jaguar had great potential, but its power was difficult to tap. Even then, many great games were released and the Jaguar has an avid fan base today.

      218.6k
      posts
    7. Atari VCS

      Discussion forum for the new Atari VCS console.

      18.9k
      posts
    8. Dedicated Systems

      Before Atari produced the famous 2600, they created many standalone consoles such as Pong, Speedway, and Stunt Cycle. Recently, Atari has been creating new dedicated consoles, such as the Atari Flashback.

      35.9k
      posts
    9. Atari 8-Bit Computers

      Atari's original 8-bit computer line, featuring the Atari 400, 800, XL, and XE series of computers. Powerful and well-engineered, the Atari 8-bit computers are still popular with fans today!

      685.1k
      posts
    10. Atari ST/TT/Falcon Computers

      Atari's next generation computer line, the Atari ST computers were based on the Motorola 68000 series chips, the same as the Macintosh at the time. The ST would also be followed by the TT and Falcon.

      66k
      posts
    11. Atari Portfolio

      The Atari Portfolio is a palmtop, IBM PC-compatible portable computer released by Atari in 1989, the world's first palmtop computer!

      556
      posts
  2. Classic Consoles

    1. Classic Console Discussion

      Discussion of classic gaming consoles outside the Atari realm.

      425k
      posts
    2. ColecoVision / Adam

      Coleco launched the ColecoVision in 1982, with the console quickly becoming popular due to its library of arcade ports. The ColecoVision has a large homebrew following today.

      132.4k
      posts
    3. Intellivision / Aquarius

      This forum is for discussion of the Mattel Intellivision, Atari's primary competitor against the 2600, as well as the Mattel Aquarius computer. Intellivision systems include the original Intellivision, Intellivision II, INTV III, and the Sears Super Video Arcade.

      280k
      posts
    4. Bally Arcade/Astrocade

      Discussion forum for the Bally Arcade/Astrocade console.

      3.7k
      posts
    5. Odyssey 2 / Videopac

      Discussion revolving around the Odyssey 2 / Videopac G7000/G7400

      7.7k
      posts
    6. Vectrex

      Discuss the world's only vector-based video game console here!

      12.2k
      posts
    7. Nintendo Entertainment System (NES) / Famicom

      Discuss Nintendo's first cartridge-based system, the NES, here!

      12k
      posts
    8. Super Nintendo Entertainment System (SNES) / Super Famicom

      Discuss Nintendo's second cartridge based system here!

      6.5k
      posts
    9. Sega Genesis

      Sega's popular fourth-generation 16-bit system, would ultimately compete head-to-head with the Super Nintendo.

      14.7k
      posts
    10. 3DO Interactive Multiplayer

      Discussion forum for the 3DO console and the unreleased Panasonic M2

      3.6k
      posts
    11. Dreamcast

      Discussion for the SEGA Dreamcast console.

      1.2k
      posts
    12. SMS High Score Club

      Join the Sega Master System High Score Club today!

      2.4k
      posts
    13. TG-16/PC Engine High Score Club

      Compete for high scores on the TurboGrafx-16 and PC Engine!

      1.4k
      posts
  3. Classic Computing

    1. Classic Computing Discussion

      Use this forum to discuss the plethora of classic computers outside of Atari 8-bit offerings. These include the Apple II, Commodore 64/128, Amiga, TI 99/4a, MSX, TRS-80 and others.

      41.2k
      posts
    2. Apple II Computers

      Discussion for Apple's 8-bit computer line.

      14.1k
      posts
    3. 239.1k
      posts
    4. Commodore 8-bit Computers

      Discussion for Commodore PET, Vic-20, Commodore 64, Commodore 128, and other 8-bit Commodore systems.

      17.4k
      posts
    5. Commodore Amiga

      Discussion for Amiga Computers, CDTV, and CD32

      7.8k
      posts
    6. Tandy Computers

      Discussion for Tandy computers, including the TRS-80 Models I, II, III, and 4, Color Computers, and Model 100.

      7.9k
      posts
  4. Modern Consoles

    1. Modern Gaming Discussion

      This forum is for discussion of all modern game systems, including gaming on consoles and computers.

      232.6k
      posts
    2. Sony Playstation 5

      Discuss Sony's Playstation 5 console here!

      859
      posts
    3. Xbox Series S/X

      Discuss Microsoft's latest Xbox Series S and X consoles here!

      725
      posts
    4. Atari VCS (Redirect)   (8,771 visits to this link)

      Discussion forum for the new Atari VCS console.

    5. Nintendo Switch

      Discussion about Nintendo's latest game console and games.

      10.2k
      posts
    6. Microsoft Xbox One

      Discussion forum for the Xbox One.

      3.3k
      posts
    7. Sony PlayStation 4

      Talk about the Sony Playstation 4 here.

      3.4k
      posts
    8. Microsoft Xbox 360

      Discussion about the Microsoft Xbox 360 (not including the original Xbox).

      22.4k
      posts
    9. Sony Playstation 3

      Please discuss the Sony Playstation 3 and games here.

      13.4k
      posts
    10. Nintendo Wii / Wii U

      Discussion forum for the Nintendo Wii and Wii U consoles and games.

      27.5k
      posts
  5. Gaming General

    1. Gaming General Discussion

      Gaming discussion not covered by other specific gaming forums.

      3.1k
      posts
    2. Arcade and Pinball

      Many of us grew up pumping quarters into arcade games, and here's where you can discuss all your favorites. From Pong to Pinball to the latest arcade games, if it has a coin slot, then you're at the right place!

      46k
      posts
    3. Emulation

      Emulators allow you to experience classic games on modern PCs (and other devices!) Discuss the latest emulator developments and ask questions about emulation here!

      31.7k
      posts
    4. Hardware

      This forum is for discussion of hardware at a more technical level than you'll find in the other forums. If you have a hardware question you'd like to ask or have some interesting knowledge you'd like to share with others, post it here!

      33.3k
      posts
    5. Prototypes

      Ever wondered about all those games that were announced but never released? Or games that have been discovered over the years that no one even knew existed? Or have you discovered a new prototype that no one's seen yet? Here's the place to talk about prototype games, led by Tempest of AtariProtos.com.

      16.6k
      posts
    6. Gaming Publications and Websites

      This forum is for discussion of gaming related magazines, books, websites, and other publications.

      19.9k
      posts
    7. International

      Internacional - Internazionale - Internationaal - Internasjonal - This forum is for discussion of classic and modern gaming in languages other than English.

      4.6k
      posts
  6. Marketplace

    1. Buy, Sell, and Trade

      Please use this forum as a tool to buy, sell, and trade games and hardware.

      241.2k
      posts
    2. Auction Central

      Use this forum to discuss auctions on eBay. Have something up for auction you'd like to share? Post it here! You can also highlight amusing, off-the-wall, or interesting auctions that others may want to hear about!

      170.5k
      posts
    3. Wanted

      Use this forum to post a list of the gaming hardware and software you're looking for!

      51k
      posts
    4. Free Games and More

      Spreading the Love with Free Games and other items.

      2.5k
      posts
    5. User Feedback Forum

      Please use this forum to leave feedback about other users on AtariAge that you've had good and/or bad experiences with. Please read the sticky at the top of this forum before posting!

      14.4k
      posts
  7. Community

    1. Events

      Use this forum to discuss gaming events of all types, including expos revolving around classic gaming, events catering to modern systems, arcade expos, and local gatherings of collectors getting together or a day of gaming.

      23.5k
      posts
    2. Show Us Your Collection!

      If you're a repeat visitor to AtariAge, it's likely you also collect classic games and systems. Here's your chance to show off to the rest of the community your collection!

      16.4k
      posts
    3. Member Blogs

      As members update their Blogs, messages will be posted in this forum so you can more easily keep tabs on who's writing what!

      11.9k
      posts
    4. 2.4k
      posts
    5. 6.7k
      posts
    6. Contests

      These forums are for discussing and participating in contests started by AtariAge, contests run by forum members, and of course, the weekly High Score Contests!

      15.3k
      posts
    7. User Groups

      This forum and its subforums are for classic gaming and computing user groups. Find people in your area who share your love of this hobby!

      2.7k
      posts
    8. AtariAge News Discussion

      Discuss news posted on the front page of AtariAge!

      • No posts here yet
    9. User Submitted News

      Please submit classic gaming news here!

      124
      posts
  8. Game Programming

    1. Homebrew Discussion

      Here you can talk about homebrew games that don't have their own forums allocated (which will be most of them). Have an idea for a game that you'd like to see someone program? Are you programming a game and want some feedback? Discuss it here!

      53.7k
      posts
    2. Programming

      The programming forums are technical discussions of programming various classic gaming consoles. The more popular consoles have their own dedicated programing forums, so please only use this forum for topics that fall outside of those forums.

      7k
      posts
    3. Hacks

      A hack is an existing game that has somehow been modifed in terms of graphics, colors, sounds, and/or gameplay. If you've modified a game and would like to share it with others, or have an idea for a modification you'd like to see done to an existing game, you can discuss it here.

      23.8k
      posts
  9. Site

    1. Announcements

      Important site or forum-related announcements will be posted here. If you see a new announcement, please stop by to read it!

      6.5k
      posts
    2. Forum Questions and Answers

      Have a question about how to use the forum?  Ask here and others can answer (including admins and mods!)  

      683
      posts
    3. AtariAge Store Discussion

      We'll post announcements about the AtariAge Store here, and you can also post your questions and comments about the store in this forum as well.

      350
      posts
    4. Site and Forum Feedback

      Do you have suggestions for how AtariAge can be improved? Please post them here, as well as criticisms, and kudos about the web site!

      17.5k
      posts
    5. Rarity Guide

      The AtariAge Rarity Guide is a living, breathing document! If you have feedback regarding rarity guide values and the database in general, please discuss it here!

      8.2k
      posts
    6. Archived Forums

      Resting place for forums that have have run their course and are archived here for reference.

      547
      posts
  • Recent Status Updates

  • Recent Posts

    • I suspect that many third-party overlays would be supported.   Such as these:
    • And the first release from the Outline 2024 event this weekend has also been uploaded to the BBS.
    • I got my blog, here, created and a couple of posts made.   More importantly, I started my DevLog for my version of Oregon Trail ... so further posts on my progress etc. will go there.
    • I just remembered I converted a bunch of the f18a demos to cart form.  You should be able to run them on a FinalGROM99.  
    • True, that's because GTIA's colourburst signal and hue $1x are always equal in phase. But here's an interesting issue (though tangential to the topic): If I understand the GTIA C014805 specs correctly (section 9.3, sheets 21 and 22), the colour pot should affect phases of all 15 hues including the colourburst/hue $1x. Now I cannot test it myself as I don't own an NTSC machine, but this means the colour pot should affect hues of NTSC artifact colours (because it would effectively change phase difference between the colourburst and the pixel clock). Have you ever seen this happening, by any chance?   Yes, it explains the hue shift and, depending on how the decoder "reconstructs" the average of the colourbursts, it may also explain the changes in saturation. More on this below.   Reading them after all these years, I am aware that my comments are somewhat confusing, maybe I was trying to explain the chip's behaviour from an "opposite direction". But for certain, the GTIA does generate the swinging colourbursts and the colour waveforms by delaying the input 4.43 MHz subcarrier by variable amounts. Also, I don't understand why the luma signal has crept into the discussion.   I did not know any documentation that would describe in enough detail how a PAL decoder works, so I did not know (and still don't) if summing the swinging colourbursts in order to retrieve the phase of the -U carrier is what any existing decoders actually do. But summing two sine waves, one at +135° and another at +225°, gives a sine wave shifted +180° with a higher amplitude, so this approach at least results with a wave with a correct -U phase. But on a PAL GTIA, the phase shift between the swinging colourbursts is not always 90°. The PAL GTIA's colourburst is always equal in phase to hue $1x - just as in NTSC - but the delays of hue $1x on even and odd lines are both dependent on the colour pot such that the difference between the two is 90° only on a certain pot setting. Since no PAL documentation describes how a decoder should behave in such a standard-defying situation, I had no choice but to resort to experimenting with actual TV sets.   I had a 14'' Crown and a 26'' Philips (don't know the exact model numbers), both CRT TVs from the early 2000s, so probably both contained a digital PAL decoder. Both were connected to an Atari via RF antenna input. On both sets I was experiencing the following symptoms: 1. When turning the colour pot toward "the maximum", not only the hues of colours were changing, but the TV was also displaying them with increasing saturation. 2. When turning the pot past around 80% of its range, when the colours were very saturated, the TV would suddenly stop interpreting the colours at all and display a black-and-white image, with every colour surface covered with a dotted pattern - a visible hallmark of displaying colour composite signal as if it was plain B&W. 3. The turning the pot further near the end of its range, the colours would come back on the TV, very saturated but all of them "reversed".   An assumption that a PAL decoder in those TVs recreates the -U phase by adding the swinging colourbursts together, has turned out to explain all of the above properties. 1. Turning the colour pot towards the maximum increases the phase difference between the colourbursts in the even and odd lines. Summing two such colourbursts always gives us a sine wave with a certain phase, but its amplitude is smaller the bigger the phase difference. If the amplitude of such a recreated signal is used as a reference for decoding of the colours, it would explain the observable changes in saturation: since the recreated reference signal has lower amplitude compared to the colour signal in the rest of the scanline, those colour signals should be interpreted as having higher saturation. 2. At a certain point of the colour pot the phase shift between the swinging colourbursts becomes so close to 180°, so the reference signal obtained by summing them up has the amplitude that nears zero. This explains the loss of colours: the decoder ceases to detect the colour reference signal altogether, and treats the signal as a purely black-and-white one. 3. Turning the colour pot further increases the difference between the swinging colourbursts past 180° and more, and summing them up results with a sine wave with phase that is inverted compared to the less-than-180° angles. This is interpreted by the PAL decoder as the -U signal, but since it is inverted, the decoder inverts all decoded colours too.   As a result, the current implementation in Atari800 was designed to replicate the behaviour of these two TV sets that I had access to. Thanks for pointing out that this might be non-standard and other TV sets could behave differently. I might have access to a few more PAL TVs in the following weeks, so I might be able to test them as well. Unfortunately, all of them are from the 2000s, so it is not going to be sufficient. A 1970s/1980s TV would be nice to have, to verify how it would interpret the PAL GTIA.
    • Lately I went a little crazy picking up a bunch of mini computers/consoles that I have been wanting to check out for a while. I do some unpacking, record some gameplay, and talk about some other unrelated things in this video:      For a different type of video, a couple months back I did a casual playthrough/walkthrough of JAWS on the NES. I had learned this one for the first time early in the year and ended up having fun with it!     
    • Three very unspecific "Atari Video Games" grand prizes were up for grabs from Sylvester's magazine in 1982......   If they turned out to be Demons to Diamonds 2600 carts I think I would have preferred the one year free subscription!        
    • I hope not, for the actual multi-carts it was first SIDE2 and then later AVGCart (mostly for the reason of "native" support for SIO, SDriveMax is great, but a bit cumbersome to use, neither I like the touch screen, nor running the SDrive application and rebooting every time). All others are the aftermath of working on Popeye and/or doing soldering project. 
    • With the things I was testing the new commit behaves the same as the last one (for which reason I will probably have to recheck if I compiled the new code, but I did pull the stuff and I have seen the report on the changed files...).
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