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elipsitz

HN member
Joined
Sun, Feb 28, 2021, 8:13 PM UTC
HN karma
504
Public activity
45 items

About elipsitz

https://eli.lipsitz.net/

Recent public activity

  1. comment
    Comment #43042471

    Thanks, it's generated with Hugo using the https://github.com/adityatelange/hugo-PaperMod theme. However, I made some modifications to the theme for the first time recently, and le…

  2. comment
    Comment #43036392

    Good question, I didn't talk about this in the writeup. It's because I think that this design is the most efficient use of space, if you want to ensure that Game Boy cartridges don…

  3. comment
    Comment #43032325

    Thanks! Yeah, support for physical cartridges makes it a complete non-issue. Mappers are a huge problem with the NES, but a much smaller problem with the Game Boy. There are only a…

  4. comment
    Comment #43030334

    Yeah, that's another advantage. Theoretically you can get down to I think with a dedicated emulation handheld (non-FPGA), you could probably pull some tricks to bring down the late…

  5. comment
    Comment #43029901

    Great question! In the absolute worst case (drawing an object at the very top of the screen, and the LCD output for the next frame started right before the current one finished), b…

  6. comment
    Comment #43029756

    Thanks for the feedback! Do you mean have it be an entirely different color (e.g. blue), or dim the other inactive headers to make the active one stand out more?

  7. comment
    Comment #43029509

    I agree, and wrote a rant about this as part of the post: https://eli.lipsitz.net/posts/introducing-gamebub/#a-brief-r... IMO: the only real advantage is that it allows you to meet…

  8. comment
    Comment #43029202

    Populated PCB in quantity 100 would probably be 60-70 USD, yeah. Maybe a bit less, it really depends on how much you can buy the FPGAs for. I really did want to switch to the RP235…

  9. comment
    Comment #43028645

    Thanks! Slint has been great to work with :)

  10. comment
    Comment #43028635

    I imagine there's a huge difference, legally, with black-box reverse engineering and then creating a very similar design on an FPGA (what I did here), and actually fully decapping …

  11. comment
    Comment #43028496

    This main distinguishing feature of this project is that it supports physical cartridges, whereas MiSTer and almost every other emulation handheld doesn’t. The FPGA cores here are …

  12. comment
    Comment #43028183

    Yep, that’s definitely a concern with hardware projects. I guess mass produced hardware doesn’t run into the problem as much because there’s funding for upfront bulk component purc…

  13. story
    Show HN: Game Bub – open-source FPGA retro emulation handheld

    Hey HN, Over the past ~1.5 years, I built an open-source FPGA retro emulation handheld that can play Game Boy, Game Boy Color, and Game Boy Advance cartridges. To my knowledge, the…

  14. comment
    Comment #41191100

    Can’t find an official announcement or datasheet yet, but according to this post: * 2x Cortex-M33F * improved DMA * more and improved PIO * external PSRAM support * variants with i…

  15. story
  16. comment
    Comment #37902733

    I'm not saying that FPGAs aren't interesting, or don't have the possibility of allowing one to produce highly accurate emulators. I think that FPGA emulators are really cool -- I'v…

  17. comment
    Comment #37901897

    Yeah, I guess it's mostly just wordsmithing. But I don't think it's pedantry: by making the claim that their hardware isn't emulation, it implies that it's somehow better than soft…

  18. comment
    Comment #37901794

    The issue I have is that they’re implying it’s inherently better than software emulation, perhaps because it more accurately reproduces the behavior. But an FPGA emulator isn’t nec…

  19. comment
    Comment #37901717

    But it isn’t a 1-to-1 simulation of the real hardware. Unless they have the original designs for the chips used in the N64, they’re still implementing something with likely very di…

  20. comment
    Comment #37901655

    Whether it’s a program running on a CPU that interprets software written for the original device, or a configuration of look-up-tables in an FPGA that can interpret software writte…

  21. comment
    Comment #37901570

    Sure, it’s not a software emulator, but it’s still an emulator. And Analogue’s use of “No Emulation” is dishonest: it implies that it’s somehow inherently better than a software em…

  22. comment
    Comment #37901381

    Analogue makes some really cool, well-engineered products. But saying there’s “No Emulation” because it uses an FPGA is blatantly false. If it’s imitating original hardware, withou…

  23. story
    Show HN: I Built an FPGA Game Boy [Color] Emulator

    I spent a few months building a Game Boy and Game Boy Color emulator that runs on an FPGA. It can play physical cartridges (in addition to ROM (files), and link with other Game Boy…

  24. story
  25. comment
    Comment #37765783

    Altera, not Xilinx (owned by AMD)