I'll try my best here, i've used snemulDS a lot in the past but I don't have a DS now (possibly not ever). Here's some advice on the options-
Speedhacks- does what you might think. It's a small collection of general hacks that can possibly speed up a game at the expense of accuracy. You WILL likely have some weird glitches. Or maybe in some games, it might FIX a problem. They're unpredictable. Cycles is the best if you NEED one on for speed. Interrupts has caused speed issues in most games, rather than helped games run faster.
Vblank/Vsync- think this was what it was called. It's a rudimentary kind of speed limiter. Problem is that although games may be running at way over the normal speed, enabling this can cause the game to get much slower than 100% speed, so it's not perfect. Still, it's functional for the most part. And without it, graphics can look jittery and choppy. This seems to smooth things out AND limit speed.
Background/sprite priorities- This one is very hard to explain without getting confused. SnemulDS is unable to perfectly process all the background and sprite layers of a SNES game perfectly (not nearly in fact). So some hands on settings are needed here. Setting different values is giving instructions to the emulator which layers to place in which order. Obviously, you'll notice that when you mess with the settings, the game appears to look different. Background layers are rearranged, sometimes appearing overlapping sprites, or other layers appearing in the wrong order. Each number in the options represents a layer or priority level. I hate to say it, but the best advice IS to mess around with it, to familiarize yourself with the options and what each layer does. It's only going to confuse you more if i try to tell you what each number represents. I suggest going slow and tapping the numbers to figure out what each one seems to do. Sorry.
In fact, most of the options under "advanced" are actually related to the graphics. There's a BG3 priority option which can sometimes fix layers being overlayed on top of sprites. Again, best to try the options for the games to familiarize yourself with what they do and find the best order of layers for each game.
And as for compatibility lists, I think GBAtemp had one for their own wiki if i can find it. Yep, it's not quite up to date with the latest version of snemulDS, but here it is-
http://wiki.gbatemp.net/wiki/index.php?tit...patibility_List
And i guess it has occurred to you that this emulator has not gotten a new version in several years. 2-3 years to be precise. It's probably dead and won't be updated again. I've never liked SNES on DS much. Too complicated for games that just don't work very well. You're far better off getting a superior PC emulator, one of which should work 99% perfectly on your PC (even if it's slower, ZSNES is awesome). Sad but true. If you're determined to play SNES on DS, i'd wait for the Supercard DSTWO. It was announced to have its own built in SNES emulator. And since the DSTWO will have far superior CPU specs than the DS itself, it'll probably be a lot better than snemulDS at least. Sorry i wasn't much help, not used snemulDS in a while.
