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Bsnes vs snes9x complicated chips8/29/2023 ![]() I have a third SNES emulator (really >_>), and with range-tested IRQs and priority queues, and an opcode-based CPU core, I can match Snes9X's performance (for non-SA1/SFX games at least), but it absolutely does not pass my test_nmi/irq ROMs. If Mesen-S didn't come about, I would have tried to do the same for the accuracy mode of bsnes.Īs it stands, I'd like to invest as much resources as possible into speeding up the faster side of bsnes, but it's proving to be a really difficult struggle here. I was planning to speed up the accuracy portion inside bsnes, but I think that effort might be a bit redundant now ^-^īut yea, I'm hoping to be able to squeeze more performance out of it all eventually I revived bsnes to try and fill the large gap between higan and Snes9X, because I'd pretty much given up on another serious SNES emulator attempt. I am not in any way saying one is more important than the other (if anything, a gaming emulator is way more useful), it's just the kind of emulator I wanted to make is all. With higan, I want to preserve the machine more than play games. I don't want higan to be the fastest accurate emulator, I want it to be the reference implementation people use to validate the hardware. But on the whole, my original estimate seems to be mostly holding up. I think you have more headroom in Mesen-S to get more than 200%, but then there's also a few corner cases you're skipping because they're quite frankly ridiculously costly. I've always said you could get about twice the speed of higan without losing any accuracy if you optimized it to its limits. This is why I've been bugging other emudevs for quite a while now (to no avail :P) to make an accurate SNES emulator. since I end up with fairly slow code even if I do that :p) Most of the time I tend to favor speed over perfectly isolating the code for each piece of hardware (esp. ![]() since everything in a console tends to be interconnected, heh. 24 hours, it is illegal to download and play a Nintendo ROM from the Internet.In general though, while I do try to keep my code as clean as I can, I've found that often times abstractions that make the code cleaner unfortunately end up also making it slower, esp. Therefore, whether you have an authentic game or not, or whether you have possession of a Nintendo ROM for a limited amount of time, i.e. The backup/archival copy exception is a very narrow limitation relating to a copy being made by the rightful owner of an authentic game to ensure he or she has one in the event of damage or destruction of the authentic. It is not a "second copy" rule and is often mistakenly cited for the proposition that if you have one lawful copy of a copyrighted work, you are entitled to have a second copy of the copyrighted work even if that second copy is an infringing copy. There is a good deal of misinformation on the Internet regarding the backup/archival copy exception. I just assume that it's safer to not even bother.Īccording to Nintendo, it's still really, super-illegal.Ĭan I Download a Nintendo ROM from the Internet if I Already Own the Authentic Game? Having those cartridges go into a console just does feel right. That being said, a lot of them are "good enough" by a lot of people's standards these days, so if you want to save money and get one, it might be wise to at least research how well they run any games you might want to play on it just to ensure everything will be I think you're allowed to have the ROMs as long as you own the actual cartridge? Correct me if I'm wrong about that. It's not a problem that's necessarily limited to just obscure games, either, depending on the clone and the issue just gets more complicated if the cartridges have special chips for graphics and processing in them. At best, you just have something like wonky sound and at worst you have games that won't properly function. ![]() Still, when there's a compatibility problem, it's noticeable. This is especially for true for clones that do hardware emulation by just cramming all of the functions on one chip, although I'm not sure how prevalent it is with non-NES clones. ![]() Although systems like the Retron have gotten better in recent years, likely thanks in no small part to patents for older Nintendo hardware slowly lapsing, they're usually designed in such a way that you can never be completely guaranteed that the clones will play any game you throw at it as well as an original. In terms of compatibility, authentic hardware is always the safer route to go over getting a cheaper clone. ![]()
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