ZSNES board

This is just flippin' awesome!

Internally cooking up a "ROM image" to implement an SPC player seems like an awkward way to approach it. Being in "god mode" over the SNES machine, like you are from the emulators code's point of view, is exactly what you'd want when trying to get SPC dumps to play back on a SNES...

Not necessarily, the cart could put whatever it wants there. For example, the SA-1 allows certain of those vectors to be altered. If you enable the feature in a particular SA-1 register, the values in ROM are hidden (similar to the SPC700 IPL ROM hiding a portion of RAM) by the values of some other...

Here's a complete list. Native (65816) mode: $FFE4 COPROC $FFE6 BRK $FFE8 ABORT $FFEA NMI (triggered at vblank) $FFEC RST (unused) $FFEE IRQ Emulation (6502) mode: $FFF4 COPROC $FFF8 ABORT $FFFA NMI (vblank) $FFFC RST (SNES starts here, in emulation mode) $FFFE IRQ/BRK It's worth of note that the in...

ST Dragon wrote:at what refresh rate do you play games?
60HZ cause me headaches on my CRT, but I've heard that 60HZ is different on TFT.... I can't define it though.

Easy: The phosphor of modern CRT screens fade much faster than the crystals in even the fastest TFT screen.

Most TFT displays I've used are locked at 60Hz, so in that sense they would be perfect for emulation. The fact that they also have a locked resolution makes them entirely crappy for emulation use, though.

One of the problem is that an SPC file contain state information that is simply impossible to restore on real hardware, which explains why the beginning of the tracks sometimes come out all garbled. A solution that ought to work in most situations is to create absolutely "clean" SPC-rips, ...

I got stuck badly in GG3 after only 20 minutes or so of trial and error. But I suppose it's for the fun of it only, not to service emu gamers.

Nothing there. Anyone else heard of some Goemon translating action goin' on? Last time I went the translation hacking route I discovered that there already was a patch floating around when the project was finished. It would be kinda disheartening if that happened again. (Okay, the project was extrem...

I'm wondering if there's any work done towards translating the Ganbare Goemon games? If so, I'd love to hear about it. If not, I just might take a shot at it...

Don't forget Super Sleuth. Comes closer to the timing of a real SNES than any other emulator right now, as well as providing the cleanest code tracer. I gotta send Overload those thanks+suggestions soon! :)

The only noticable difference on a PAL system is is has more scanlines. If PAL has 240 scanlines, what's overscan do to PAL? I would guess it bumps it up to 265, and pushes the onscreen image down by 7 or 8 scanlines, similar to how the image is pushed down on NTSC televisions in overscan mode (thu...

No. Adding custom exports that the emulator recognizes would break my original goal of exact (as I can get) hardware emulation. How is that? One obvious route is to let the assembler export a symbol table that also includes breakpoints, which the emulator then imports (including labels and breakpoi...

What are you going to use it for? (I'm just evaluating my motivation to get the tool properly polished )

Alpha-II made a tool called SPC2ROM a while back. It's available here . I'm quite certain the source used to be downloadable as well, since I'm quite certain I based an improved version of the tool on it. :) It's all on another computer right now, but I'll look into it. The tool available doesn't pr...

This . By now you probably realize that I don't like using other peoples' stuff. It's pretty lousy though, I've been more focused on accurate emulation than improving the debugger, and it shows. When that doesn't work, I use ZSNES DOS. Looks neat! Since you also rolled your own assembler, have you ...

That sounded mildly interesting! Would you like to disclose the name(s) and author(s) of those assemblers? ...I was meaning that I wrote them. The 65816 one is called xkas, the spc700 one is called spcas. Yes, I put a lot of time into naming them. If you read the documentation with them, you'll see...

As far as assemblers, I have assemblers dedicated to the 65816 and spc700 as well. This makes a huge difference in terms of flexibility when compared to all-in-one table assemblers such as WLA-DX. That sounded mildly interesting! Would you like to disclose the name(s) and author(s) of those assembl...