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Zerosquare

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Everything posted by Zerosquare

  1. ...and Checkered Flag may look like a decent racing game based on the box art. But in both cases, I strongly recommend against actually diving deeper. By experience, let's just say that both designs tend to cause the same reaction.
  2. Probably either dirty contacts on the cartridge port (two of them are used to detect there's a cartridge inserted, and power off the console if there isn't) or a defective power switch.
  3. Ahem... you're replying to a post that was made more than 16 years ago.
  4. Given what the "Atari" company has become nowadays, I understand why you would feel embarrassed.
  5. It seems unlikely to me. I think your Jaguar has another problem that's unrelated to the bent pin. Unfortunately, since it is a pretty complex console, it is hard to diagnose issues, especially remotely.
  6. EA16 is one of the address lines to the ROMs, so the games will definitely not work without this signal. But I wouldn't expect the symptom to be video issues, it should "only" cause the red background at startup. Do you still get the roar sound at startup? Try also short-circuiting pins 34B and 35B and powering up your console with no cartridge inserted:
  7. Maybe not "super fragile", but they're small and the tracks are thin, so you can rip them off the board if you're not delicate enough.
  8. Before ordering a new connector, try using a thin wire (solid core, not stranded) to bend the contact back into place. You'll need to be patient, and it doesn't always work, but I've managed to do it successfully once or twice. If the connector is shot, you'll need to replace it. It's not as difficult as Best describes it, but it's definitely not easy either. This topic should help you: I recommend reading it before doing anything, because it's easy to accidentally damage the motherboard or the connector.
  9. In this case, you don't need the resistor, the problem is elsewhere. If you have a SCART-to-composite adapter, or if your TV set has a second SCART input that supports only composite (not RGB), try using it to see how the composite signal looks. Also, try wiggling the cable in case this is an intermittent issue. No, this is something unrelated. But it could explain why some of your cartridges aren't recognized.
  10. Check pin 20 on your SCART cable: It may be bent or recessed inside the plug. Another possibility is that the wire inside the cable is failing. If that doesn't solve the problem, try this: The cartridge port on your Jaguar could be dirty. You can clean it using contact cleaner spray (best), isopropyl alcohol, or just medical-grade ethanol (if you don't have anything else handy). Try cleaning the contacts on the cartridges themselves as well. Sometimes you have to remove/insert the cartridges a few times before it works, it's a bit finicky. If nothing helps, the cartridge port on your Jaguar may have loose or bent contacts. Look closely and check that all the metal parts look the same.
  11. This is a known thing that occurs on some Jaguars, it's not a symptom of a problem.
  12. And what would be the point, anyway? Jaguars are much less common than Atari 2600s.
  13. Well, they weren't lying. Anyone who's ever played Club Drive remembers the experience.
  14. You can try it and see if it does anything useful
  15. Never used it, but according to the documentation, it doesn't. It does raises the GPU priority on the bus, but if there's no bus contention, it won't make any difference. And if there is bus contention, it causes the GPU to have a higher priority than the object processor, which is something you don't want as it will cause display glitches (as documented in the errata, which tells you not to use DMAEN).
  16. The main bus is 64-bit wide and so is the RAM, so using STORE / LOAD when you could be using STOREP / LOADP reduces performance. Of course, it only matters if you need to transfer more than 32 bits of data.
  17. Go play Supercross 3D for a while, then.
  18. No. Like most retro consoles, the Jaguar outputs a 60 frames/second non-interlaced signal. It's not standard but virtually TVs of the time would display it without problems.
  19. If you only want to test controllers, you can skip the trouble and use Matthias Domin's controller test program: http://mdgames.de/jag_eng.htm
  20. Fix that blue signal, that tree looks sick
  21. Yes, these are the final releases for the hires demos. But if I remember correctly, the hires code in qUaKe is a later version with a few enhancements. So if the hires demos don't work properly, try a qUaKe slideshow. Regarding Tempest 2000, there's an "interlace" option you can enable in the settings, but it doesn't actually use interlacing. It just emulates some screen flickering.
  22. @ggn: just to make things clear: - do you still allow the redistribution and usage of the last version of rB+? - would you allow someone else to take over the development of rB+?
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