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  1. It also only works with specific CD drives...

    It also only works with specific CD drives (Panasonic ones I think), so even that was limited. Though at least it could be used as a normal drive too.
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    It's still in development...

    It's still in development
    https://www.kickstarter.com/projects/1676714319/xeno-crisis-a-new-game-for-the-sega-genesis-mega-d/posts/2734986

    Though I imagine it won't be much different.
  3. Re: scrolling, there's already precedent on MSX2...

    Re: scrolling, there's already precedent on MSX2


    https://www.youtube.com/watch?v=nGVMM2cpQsg

    But yeah, I can't see how to work around the sprite issue, other than making it choppy and have...
  4. Well, CGA was either 320×200 or 640×200, EGA...

    Well, CGA was either 320×200 or 640×200, EGA introduced 350 lines high modes, and VGA introduced 360/720px wide (…for text mode) and 240/400/480px high modes. Though amusingly VGA is another case of...
  5. … *looks up screenshots* ...



    *looks up screenshots*

    https://www.mobygames.com/game/amiga/shadow-of-the-beast/screenshots/gameShotId,173471/

    OK yeah there are black borders on the sides. They presumably blend in with...
  6. Yeaaaah it's definitely full screen. And it may...

    Yeaaaah it's definitely full screen. And it may be using the low resolution mode (pretty much needed to have more than 4 colors in the backgrounds) but it's the usual pixel density most games were...
  7. For what's worth it, Star Fire was an actual...

    For what's worth it, Star Fire was an actual arcade game from 1978 (or 1979? I've seen both dates), the Vectrex one seems to be a port of that.

    Anyway, I suppose it depends how good you're at...
  8. Um, you know, the /M3 signal in the cartridge...

    Um, you know, the /M3 signal in the cartridge slot literally tells you if it's in MD or SMS mode (the cartridge leaves it floating for MD and pulls it low for SMS). You'd need to feed the input from...
  9. Yeah, I don't consider that a fix, was thinking...

    Yeah, I don't consider that a fix, was thinking more about if somebody had found a way to dodge the RAS cycle altogether.

    That isn't helping either, but I was thinking on a more fundamental level...
  10. Looking up VSP and it's not "some" C64 that are...

    Looking up VSP and it's not "some" C64 that are susceptible, all of them are, it's just that it depends entirely on unlucky timing (essentially the address lines are unstable, and if it happens in...
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    I hope you had a multitap at hand :​P

    I hope you had a multitap at hand :​P
  12. Sounds like you changed the Reset button itself...

    Sounds like you changed the Reset button itself instead :​P

    Pulling low on B2 is akin to pressing the Power button (i.e. resets everything). It should work if you're doing that right, though if...
  13. I mean, you can always layer sprites, but this...

    I mean, you can always layer sprites, but this isn't needed in the C64's case (it is on other systems). Sprites can be either 1bpp (with 1:1 pixels) or 2bpp (with 2:1 pixels). In the latter case, all...
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    As far as I know it isn't dumped publicly yet,...

    As far as I know it isn't dumped publicly yet, though one of the cartridges has started to circulate around again. And yes, it's the same cartridge where the footage of Sonic with Madonna came from...
  15. Not really? I mean, you have to compute the...

    Not really? I mean, you have to compute the scroll values for the extra layers, but that's barely significant (except maybe if you go full bonkers with linescroll, and even then depends how complex...
  16. Not any better. Multicolor sprites are a native...

    Not any better. Multicolor sprites are a native feature of the C64 and they even take up the same amount of memory bandwidth (hence the doubled pixels, it shares a color between two consecutive bits).
  17. Nitpick, but it's 32 bytes (nobody in their right...

    Nitpick, but it's 32 bytes (nobody in their right mind will waste time packing the bits to remove the unused gaps). But yeah, they're so small that they aren't even worth compressing (which is also...
  18. Where is Addams Family? Where is Chase HQ II?...

    Where is Addams Family?
    Where is Chase HQ II?
    Where are Fatal Fury and Fatal Fury 2?
    Where is G-Loc?
    Where is Kawasaki Superbike Challenge?
    Where is Lemmings?
    Where are the two Lotus games?...
  19. It definitely can't replicate it with the...

    It definitely can't replicate it with the performance the SNES does though, you're not going to beat dedicated hardware, and even if you could somehow infinitely overclock it the color limitation...
  20. To be fair the post it's replying to is just as...

    To be fair the post it's replying to is just as dumb (bonus points because the particular effect it points out (tilting) is also doable on SNES and with more granurality, Time Trax uses it in the...
  21. Fred's face, most likely. It barely animates...

    Fred's face, most likely. It barely animates compared to the rest of the body and it sticks out.

    EDIT: checked the SNES version and it seems to have gotten better (presumably on Mega Drive it'd...
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    The existence debug register was known back then...

    The existence debug register was known back then (that's kinda what kickstarted Overdrive 2, me telling Kabuto about it), the problem is that nobody could figure out how it worked in all that time....
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    It is legitimately hard. The trick is to try to...

    It is legitimately hard. The trick is to try to avoid placing the blocks in a way that can make Pac-Man stuck, easier said than done but eventually doable.

    It's like the situation with SegaSonic...
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    Well, part of the problem is that the license...

    Well, part of the problem is that the license explicitly forbids commercial use:
    https://github.com/ekeeke/Genesis-Plus-GX/blob/master/LICENSE.txt

    So yeah, Sega couldn't have just grabbed Genesis...
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    Sticky: OK I finally got my laptop back so I can type...

    OK I finally got my laptop back so I can type long posts again without much trouble.

    In short: you need to keep the Z80 away from the 68000 bus when you start a DMA. The obvious way is to stop the...
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