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nanochess

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Everything posted by nanochess

  1. Oh my! I never noticed I exceeded slightly a segment so it conflicts with the ECS installed. Exactly the data overflowing is the title screen. Current solution: Don't use the ECS. 🤪 Better solution: Download the updated ROM at the top.
  2. I think the problem here is that the repair tends to exceed the price of simply replacing the joystick with another. Take for example this replacement circuit board: https://www.ebay.com/itm/175903545682?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=r3UEzPJCRwe&sssrc=2047675&ssuid=AgHKeiPeQnK&widget_ver=artemis&media=COPY The cable: https://www.ebay.com/itm/115920583073?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=VdRmcP3PRmW&sssrc=2047675&ssuid=AgHKeiPeQnK&widget_ver=artemis&media=COPY And my favorite, the plastic piece where joysticks typically break: https://www.ebay.com/itm/125890509233?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=uGi4Ao9CQYy&sssrc=2047675&ssuid=AgHKeiPeQnK&widget_ver=artemis&media=COPY Every piece is pretty expensive, and it is easy to see why no one offers a repair service for joysticks.
  3. My book Programming Games for Atari 2600 shows how to create an Adventure-esque game in assembler. Plenty of space remains to extend the game.
  4. I don't know how I survived without reading full sentences 😅 Indeed the original question asked for a platformer code, and yes, my book Programming Games for Intellivision includes two examples: Monkey Moon and Bouncy Cube.
  5. The default distro and the SDK by @DZ-Jay contains around 20 examples of coding and games. If you know how to use the Windows CMD terminal, or the Mac/Linux Terminal you should have no difficulties.
  6. I would recommend trying a game without black&white mode. It could be so simple as a damaged line in the PCB.
  7. I gave another look and I don't see nothing blatantly unoptimized. So I figure you are good.
  8. I don't see your code as inefficient. In fact my programmer mind sees it as the minimum code possible, as each direction must be computed independently otherwise you cannot get the slide feature.
  9. Maybe it is refreshing the screen at double rate, or it needs a pull-up on the Interrupt pin.
  10. Thanks everyone for your support! Copies are flying off the shelves This gives me ideas for more pumpkin games, but I'll need to tie myself in order to only program these in October each year
  11. It is volume 13 for the AY-3-8910 tones (silence is 0). And the volume is 3 for the SN76489A tones (silence is 15)
  12. I found the source code of the SGM test utility. Fortunately, I had a backup because my laptop hard drive crashed in 2014. I made it to jump to the sound test code even if only a 1K Colecovision is found, also enabled the code for a walking piggy on the screen (I didn't enable it at the time because I was going to use it for a game, but never went to it) When the music finishes it allows you to press the keys 1 to 6 in order to test each of the SN76489 channels, and the AY-3-8910 channels. cc @mytek Also when the music finishes, you can move the pig using the stick. sgm_test_v2.rom
  13. I'll try to find the source code so I can make it to test sound.
  14. I don't have the source code at hand, but it tests everything step-by-step. So it should test the AY-3-8910 without any problem.
  15. It will generate a new pseudo-randomized floor layout each time. It uses the title screen as a waiting point to increase the LFSR.
  16. I forgot completely why I put that silly limitation in the first place 🤔
  17. I lacked time to implement proper scoring. But advancing screens is enough reward 🤪
  18. No more time for perfection. The game needs to get out of the oven!!! Uploaded in first post.
  19. Hi guys! I'm doing another Halloween game named Pumpkin Castle, and I started it this morning. I'm starting this topic to press myself to finish it in the next two hours. 😜 Time counting! Ok, it took me a few minutes more, and couldn't make some perfectioning, but here it is!!!! pumpkin_castle_v0.rom Update Nov/20/2023: The ROM version 1 solves an incompatibility bug with ECS (garbled title screen), starts again the music when starting the game, and shows the screens in the right order while scrolling to left. pumpkin_castle_v1.rom
  20. Most of my games have a flicker algorithm because there is a lot of sprites: * Princess Quest. * Mecha-8 * Mecha-9 From original games I think: * Defender. * Donkey Kong. * Donkey Kong Jr. * Frenzy * Congo Bongo * Mr. Do's Castle From the top of my head for homebrews I think: * Module Man. * Quest for the Golden Chalice. * Arabian. * TwinBee. * Knightmare.
  21. I think the original 125 games also aren't public domain. I believe the purpose is that the game's programmer doesn't appear there asking for gameplay money.
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