SpritesMind.Net

You can also "stretch" vertically (or indeed theoretically display any scanline of the image although I haven't tested it) by setting full screen vscroll and stuffing values into the single VSRAM address used for full scroll on every scanline. My First Time Out demo uses full screen scroll in a simp...

I know that the game loaders for the PS2 use a little bit of resident code to hook into the system disc I/O routines to feed the data from another source (whether USB, HDD, Ethernet, or IEEE1394 depending on the loader). Might be doable on the MCD through a BIOS replacement (don't most games read da...

The C64 freezer carts that could "read" unreadable registers would actually sort of "shadow" those memory locations so that the cart would always have an up to date copy of each write-only register. Perhaps something similar can be done on the Megadrive? As for CPU internal state, it could be more o...

"MAGIC DRIVER V-1"? It'd probably be cool to dump that BIOS using Charles' smdutil.

When people (and one of the admins, especially) go to the length of making innuendos about "leaked" source code for their hacks, of source they do not have the right to use either, just because they think that open source is only good for leechers who want to copy, you can't say they're supportive ...

Sonic Retro actually has interesting information, but the site has an elitist attitude which most probably won't tolerate an "open source" project Nonsense, there have been plenty of projects with source available. and you will deal with all sorts of small kids who think they're geniuses for tweaki...

I will suggest that any and all enhancements should be gated behind an "enable" register, lest you break any existing software. Case in point - the Commodore 128. As with the SMS/Genesis relationship, the C128 contains a C64 in hardware, but also has some enhancements in C128 mode. However, some of ...

For the record, world 36 no longer crashes, although it does not behave the same as the NES version. You get an underwater 3-4, which upon completion acts like you've beat the game, setting the hard mode flag and enabling the world select.

I wish it was "A" Run "B" Jump "C" Run But B+C is fine Do a SMB2j Port..But the Mapper 4 Hack - According to Sik (he said it first...), now in main screen the number of players is selected with the Up/Down buttons. Now the A and C buttons does the same function. Plus, the joypads are initilized pro...

Yeah, that would work too. I solved the problem for the moment by re-assigning my keys in Fusion, of course that helps none for hardware. As long as there is a run button to the left of a jump button, I don't really care. I like the idea of B for run and A/C for jump, although I never use A to jump ...

And now we wait for Mairtrus to come out with a proper v2 release, with an improved palette (and I hope he switched the A and B buttons )

Strange, I remember seeing somewhere in the code a routine that sets H40 mode if some value is read at some RAM address on startup (why ?). Contrary to what emulators are doing, RAM is not initialized on power on, so it can return random value depending on the console model. That seems like it'd be...

I recorded a full warpless run the other night, it's 42:44 long and so I'm uploading it in 5 segments on YouTube. Here's the first one, second one uploading now, third through fifth will upload after that, then I'll add annotations later today.

incredible work :) funny few times ago, i was looking at the super mario source thinking about a genesis port :p great to hear that my "md developer studio" was helpful :) Heh, as was I at one point. I would have been doing it manually, however, and instead of emulating the PPU and I/O, I would hav...

256 pixels also gives you less sprites per raster line, so it is not alternative at all. You can display 320x224 picture on 320x240 screen, but you can't display 320x240 picture on 320x224 screen without losing details, so the choose is obvious. Except for the fact that you lose compatibility with ...