Announcing relaunch of Nezulator - now written in Javascript

Zelex · Post by **Zelex** » Sat Apr 30, 2011 6:35 am

Relaunch has none of the the old code that I wrote over 10 years ago. New code based off of jsNES, but with a ton of improvements to make it lots faster, uber fast 2x zooming, fixed a bunch of bugs, expanded mapper support, and google search integrated for lots of roms w/out the legal hastle!

http://zelex.net/nezulator

w00t!

cpow · Post by **cpow** » Sat Apr 30, 2011 7:35 am

Zelex wrote:Relaunch has none of the the old code that I wrote over 10 years ago. New code based off of jsNES, but with a ton of improvements to make it lots faster, uber fast 2x zooming, fixed a bunch of bugs, expanded mapper support, and google search integrated for lots of roms w/out the legal hastle!

http://zelex.net/nezulator

w00t!

I get about 8-10FPS running SMB1 on my Intel core i5 @ 2.6GHz. Is this expected?

tokumaru · Post by **tokumaru** » Sat Apr 30, 2011 8:35 am

I guess speed largely depends on the browser you're using. It probably runs much faster on Chrome, since it compiles JavaScript IIRC.

3gengames · Post by **3gengames** » Sat Apr 30, 2011 8:39 am

58-60Fps is what it says for me on Chrome 10, but it still runs very choppy. Good job though. Although, I think a interface like jsNES would be nicer.

Zelex · Post by **Zelex** » Sat Apr 30, 2011 10:24 am

Yeah, definitely run in chrome. Firefox and Opera are over twice as slow -- and believe me that this emulator pushes the boundaries of what is possible in javascript. Its a really... really slow language.

Zelex · Post by **Zelex** » Sat Apr 30, 2011 10:26 am

I'm working on some changes to squeeze out another 5 fps or so, but it makes a world of difference for my laptop. Hopefully be done this weekend sometime

tokumaru · Post by **tokumaru** » Sat Apr 30, 2011 10:29 am

I got around 6fps in Firefox but a perfect 60 in Chrome. The sound was badly out of sync though, but I didn't even expect it to have any sound. How did you implement sound with JavaScript anyway? This is pretty amazing.

Kasumi · Post by **Kasumi** » Sat Apr 30, 2011 10:32 am

Nezulator wrote:A is Z
B is X

Nope. A is X. B is Z.

Post by **tepples** » Sat Apr 30, 2011 10:35 am

tokumaru wrote:I got around 6fps in Firefox

Firefox 3 or Firefox 4?

tokumaru wrote:How did you implement sound with JavaScript anyway?

This page might explain: make a .wav file, base64 encode it as a data: URI, and put it in an <audio> element. The other way is to use an experimental browser-specific audio stream API.

Zelex · Post by **Zelex** » Sat Apr 30, 2011 10:54 am

Kasumi wrote:
Nezulator wrote:A is Z
B is X
Nope. A is X. B is Z.

woops. my bad. fixing now

Zelex · Post by **Zelex** » Sat Apr 30, 2011 11:05 am

tokumaru wrote:I got around 6fps in Firefox but a perfect 60 in Chrome. The sound was badly out of sync though, but I didn't even expect it to have any sound. How did you implement sound with JavaScript anyway? This is pretty amazing.

Chrome and Firefox have a raw sound api that allows you to do it. It also uses a flash based fallback if your not in firefox. (currently implementing the chrome api). The flash based fallback is why the sound is delayed a bit. Working on implementing the chrome api soon.

3gengames · Post by **3gengames** » Sat Apr 30, 2011 11:42 am

Cool. I'm surprised nobody has made a decent emulator for the NES specifically for Chrome and put it on the Chrome Experiments page. I forgot to mention earlier but I also had delayed sound, but apparently you know.

And it'd be nice to add the buttons WSADGHKL as Up,Down,Left,Right,Select,Start,B,A. It's a lot more natural to play that way.

And a option to select a file on your computer to play would be needed, as....well...the search sucks. Typed in Mario and the first result was: NES****DiskDude!x¡* *√óÄ Ä* Üªpá*ä*áäæê.......That's not good.

Zelex · Post by **Zelex** » Sat Apr 30, 2011 11:46 am

3gengames wrote:Cool. I'm surprised nobody has made a decent emulator for the NES specifically for Chrome and put it on the Chromium projects. I forgot to mention earlier but I also had delayed sound, but apparently you know.

And it'd be nice to add the buttons WSADGHKL as Up,Down,Left,Right,Select,Start,B,A. It's a lot more natural to play that way.

Thats a good idea! I wonder if its hard to put it up there?

Bregalad · Post by **Bregalad** » Sat Apr 30, 2011 1:07 pm

My $2 : Making an emulator for a specific browser is, in my opinion as dumb as making a game for a specific emulator.

3gengames · Post by **3gengames** » Sat Apr 30, 2011 1:14 pm

You're right....lets use IE6 as the basis for all web development and not move forward with open source and high quality 21st technology. But I think we are mainly talking HTML5 tech, not just Chrome alone.

nesdev.com

Announcing relaunch of Nezulator - now written in Javascript

Announcing relaunch of Nezulator - now written in Javascript

Re: Announcing relaunch of Nezulator - now written in Javasc