Adobe Releases C/C++ To Flash Compiler 216
SnT2k writes "Adobe recently released the beta version of Alchemy which compiles C/C++ code into AS3 bytecode (which runs on AVM2) that can run on the Flash or Flex platform and boasts increased performance for computationally-intensive tasks (but still slower than native C/C++). It was demonstrated last year during the Chicago MAX 2007 to run Quake. A few months later it has been demonstrated to run a Python interpreter and Nintendo Emulator. One interesting tidbit is that the thing is built upon the open source LLVM Compiler Infrastructure."
Still no contact info, so I'll post here... (Score:5, Interesting)
I've been interested in this idea since the presentation at the LLVM dev meeting. I'd be interested in extending clang to use the native ActionScript object model for Objective-C objects, and adding a GNUstep back end to use the native flash drawing primitives so that we can easily port Cocoa apps to run in a browser. Unfortunately, there was no contact information listed anywhere on the presentation or on this site, so I haven't been able to get in touch with anyone at Adobe Labs about this.
Re:Still no contact info, so I'll post here... (Score:5, Funny)
Re:Still no contact info, so I'll post here... (Score:5, Funny)
Why does everybody as for a pony, but not a stable to keep it in, or food to keep it alive?
Does Pony meat taste that good?
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Why does everybody as for a pony, but not a stable to keep it in, or food to keep it alive?
Does Pony meat taste that good?
Don't look a gift horse in the mouth.
Re:Still no contact info, so I'll post here... (Score:4, Funny)
Don't put a gift horse in the mouth.
Fixed for ya.
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Well... There's always porn.
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Re:Still no contact info, so I'll post here... (Score:4, Funny)
>Why does everybody as for a pony, but not a stable to keep it in, or food to keep it alive?
I live all alone in a farmhouse, you insensitive clod.
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I live all alone in a farmhouse, you insensitive clod.
Be careful. A pony doesn't play chess [luxtrust.lu], so you'll still be as bored as before!
Re:Still no contact info, so I'll post here... (Score:5, Interesting)
I don't know first hand, but apparently horse meat is supposed to be very tasty. "The F-Word" (Gordan Ramsay cooking show in the UK) did an episode where they prepared horse meat, talked about the history of horses and talked to a farmer that raises them for their meat etc. It was really interesting.
In one part they were handing out samples near a horse-race track (they do that with lots of "exotic" foods. Go out into public and get people to try it and give their reactions etc.) and got asked by the police to leave. Not relevant but I thought it was funny.
-1 OT
Re:Still no contact info, so I'll post here... (Score:5, Informative)
horse meat does taste good, low fat and kind of sweet. i think the closest analogy to horse meat is ostrich meat. i would prefer a horse steak to a beef steak every time.
just don't try the mongol horse salami. it doesn't taste very good and the meat sticks between your teeth.
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Yep, here in Vancouver there's a few Japanese restaurants that serve horse sashimi. It's pretty much like sweet lamb, I'd say.
Horse Meat babyfood (Score:2, Insightful)
In Italy, there is horse-meat (cavallo) babyfood [fbcdn.net]. The first real culture-shock experience I had while grocery shopping.
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You've either eaten very strange horse meat or very strange ostrich. Horse meat isn't realy that far off beef, a little darker when raw and a little richer. I'd guess a lot of people couldn't tell the difference by taste.
Ostrich doesn't really taste like beef at all. In fact I can't think of anything else it does taste like.
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the horse steak was served in a pretty good restaurant in ljubljana, the ostrich steaks were bought at the frozen food aisle at a supermarket.
that might account for the taste but i don't think both taste like beef but more like sweet deer meat.
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Ostrich doesn't really taste like beef at all. In fact I can't think of anything else it does taste like.
It's little bit like emu
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think the closest analogy to horse meat is ostrich meat
Thanks! I'm glad you cleared that up for everyone.
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In one part they were handing out samples near a horse-race track (they do that with lots of "exotic" foods. Go out into public and get people to try it and give their reactions etc.) and got asked by the police to leave.
Probably more due to his poor choice of venue, than because of the meat.
In some countries (such as Luxembourg), horse meat is a very normal thing to eat, with some restaurant's even specializing in it. Nobody thinks anything bad about it.
Germany is fun too: here, some restaurants put up fake signs "we serve horse meat", but that's only to keep the gypsies away...
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I grew up in a country without a taboo against horse meat, so I have plenty of first hand experience. Yes, it's very tasty. Especially black sausages (think salami, but almost black in colour and much stronger flavoured) are delicious, but I don't mind a good flank steak either.
The meat is dark in colour -- although not as dark as seal meat.
The taboo against horse meat here in the US is probably related to horse theft being a
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no, but boiling their skins, bones, tendons and tissues makes the most awesome wood glue.
Re:Still no contact info, so I'll post here... (Score:5, Funny)
Why does everybody as for a pony, but not a stable to keep it in, or food to keep it alive?
Does Pony meat taste that good?
Because when it's a pony from Adobe you know that it will soon crash and die, and it wouldn't know what stable is anyway.
Re:Still no contact info, so I'll post here... (Score:4, Funny)
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I believe this goes directly to the engineers over at Adobe:
http://www.adobe.com/go/wish
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Sounds like you know more about this tech than I do by a good sight, so tell me this...
Is this another entry in the framework theory of everything arms race we have going, or just a logical development based on developer feedback?
C/C++ Trojan Horse (Score:4, Funny)
"Compiler", is that the new spelling for "Automated Buffer Overflow Generator" ?.
Re:C/C++ Trojan Horse (Score:5, Funny)
Re:Still no contact info, so I'll post here... (Score:4, Informative)
Post the question to tamarin-devel@mozilla.org -- all the relevant people at Adobe are on that list, and although Alchemy is not technically part of the Tamarin project, it's related enough.
Oh oh Adobe... (Score:2, Interesting)
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don't worry, as soon as it's popular, they'll create a half-assed version called IronFlex.
NES emulator? (Score:3, Interesting)
Where I can find info on the NES emulator in Flash? That link didn't have any info that I could find.
I had started such a project a while back, but never quite finished due to poor performance.
It has been said (Score:5, Interesting)
This seems to further cement flash as a worthy application environment, especially given the perceived problem in flash appeared to be its inefficiency.
Looking forward to better flash games... (Or perhaps not if im not wanting to procrastinate).
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Huh? You think this method is going to give anything remotely resembling the efficiency of native code? Unless the flash script language is really badly written, the performance will be even worse than programs that were manually written in flash.
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It won't be fast but Good Enough is good enough.
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You forgot the link to your benchmark results...
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Due to the way he phrased his post, he doesn't need to provide any specific evidence in order to be correct.
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Huh? You think this method is going to give anything remotely resembling the efficiency of native code? Unless the flash script language is really badly written, the performance will be even worse than programs that were manually written in flash.
Correction: Unless the C/C++ compiler was implemented very poorly, and fed terrible code, it's performance will at least be on par with equivalent code written in flash script.
C and C++ compiler optimization technology is very well established, and there are no hidden garbage collection quirks waiting to burn you.
The existence of a decent C to AS3 bytecode compiler opens up possibilities: language compilers and tools such as SmallEiffel, Ctalk, Flex, Yacc, Bison, Ragel, etc. use C as their first stage compi
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And before someone responds to this as if it were a serious post: I very sincerely hope this is and will remain a joke.
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This seems to further cement flash as a worthy application environment, especially given the perceived problem in flash appeared to be its inefficiency.
Huh? You think this method is going to give anything remotely resembling the efficiency of native code?
What's inefficient is maintaining separate versions of your product's business logic in one language for each platform (C++, Java, C#, and ActionScript), and then somehow proving that they produce bit-for-bit identical results.
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Sorry, what? Why would C running on Flash get worse performance than ActionScript running on Flash?
Obviously you won't have the same performance of native code (for one thing, you need to be doing security checks, which is part of the major benefit of using Flash o
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Re:It has been said (Score:5, Insightful)
I'd be willing to wager that you've used responsibly designed Flash applets before and simply assumed them to be cleverly implemented Javascript because they didn't explode all over the screen in a cavalcade of light and sound.
Nothing about Flash compels the developer or designer to author something "garish and obnoxious" any more than Javascript or CSS do. Its versatility merely allows for greater abuse.
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I'd be willing to wager that you've used responsibly designed Flash applets before and simply assumed them to be cleverly implemented Javascript [...]
I bet he didn't even notice pressing the big f/play button to make it run ;)
[FlashBlock firefox extension, a godsend; even worth it when you use noscript, for those video players that start playing straight away despite your wishes].
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I have Flash on my Nokia N800. It has no noticeable effect on battery life.
I use OpenLaszlo [openlaszlo.org] to develop auditing software that has earned me a very good living for the past few years. The auditing apps are very utilitarian in use and appearance, despite running on Flash.
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Jailbreak it. There's a quake4iphone in Cydia that's been there for months, with hardware acceleration and everything.
Virtualize Everything (Score:5, Funny)
Wow, I can compile my C/C++ code to run on a slow virtual machine instead of a native cpu architecture.
I haven't had this much fun ever since I discovered the java Virtual Machine written in java.
It brings back the heady days of my 8088.
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> java Virtual Machine written in java.
Link? This sounds completely useless, but it would be interesting to look at the source if available.
Re:Virtualize Everything (Score:5, Informative)
http://jikesrvm.org/ [jikesrvm.org]
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Wow. Even worse. Apparently there's more than one, because if you notice my previous comment...well, that wasn't the one I found.
http://joeq.sourceforge.net/ [sourceforge.net]
Re:Virtualize Everything (Score:5, Insightful)
There's nothing inherently bad about the concept. It's in fact quite interesting to have the JVM optimise itself along with the programs running inside it. And while the JikesRVM, being a research VM, does not run as fast as Sun's VM or IBM's commercial VMs, it's not that slow either (definitely not as slow as you'd first think of a JVM implemented in Java).
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But wouldn't the Java JVM have to run on a JVM? Thus introducing yet another layer of inefficiency?
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JikesRVM has a small "bootstrap" VM that is used to get the main VM going, but after startup everything is run in the main VM (including the main VM itself).
Re:Virtualize Everything (Score:5, Funny)
JikesRVM has a small "bootstrap" VM that is used to get the main VM going, but after startup everything is run in the main VM (including the main VM itself).
I am getting mental stack overflows just trying to parse that.
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Computer science is based on the idea of machines that can simulate themselves, and actual computers end up working like that pretty frequently.
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Computer science is based on the idea of machines that can simulate themselves, and actual computers end up working like that pretty frequently.
Halo1 claims that the JikesRVM runs inside itself. Sure I know that GCC compiles itself but this is like saying the JVM can run without a physical machine below it.
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The (small and simple) bootstrap VM is written in C++.
a free ride when you've already paid (Score:2, Funny)
Wow!!!! That's like rain on your wedding day! That's like like ten thousand spoons when all you need is a knife!!! That's like good advice that you just didn't take!!!
Re:A Cluster-Aware Distributed Java Virtual Machin (Score:5, Funny)
http://www.google.com/url?sa=t&source=web&ct=res&cd=5&url=http%3A%2F%2Fcs.anu.edu.au%2F~Peter.Strazdins%2Fseminars%2FdJVM.pdf&ei=FK0kSafSAZSo0gScxs3FDw&usg=AFQjCNHrPDWFanLbyUu3kX-lEkzZrWR6bw&sig2=jcMo0CIWzGg_nZVLvDHpxA
My first thought on reading this post was that the super-long Google url WAS the cluster-aware distributed virtual machine.
So, how long until Google reveals its next project: Compile C++ to a Google URL, and visit the URL to see your program running?
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My god! I thought you were _kidding_ when you mentioned the Java Virtual Machine written in Java. But the damned thing _exists_! What has this world come to???
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Speaking of, where did the computer-science demographic on slashdot make off to? You know, the guys who are aware of historical minutiae like the time-honored milestone of a programming language becoming self-hosting? Just asking.
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Well, of course, but isn't it a bit different with Java? I mean, most programming languages aren't virtualized.
I'm a computer science major by the way. Freshman though, so I guess I have some to learn still. ;)
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OK, sorry to be so hard on you. It turns out that there are copious buttloads of languages that use some sort of bytecode under the hood. The thing that really makes it stick in your mind with Java is just that it's the format that you're expected to distribute your programs in. Contrast that with Python: The reference implementation (CPython) is also a bytecode interpreter. I'm not sure, it may be possible to distribute a python program in bytecode, but I've neither seen nor heard of anyone doing
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> copious buttloads of languages that use some sort of bytecode under the hood
But fewer where the bytecode interpreter is written using itself. The historical self-hosting milestone is usually when the compiler written in the language can compile itself (once it's been compiled with another version first), and a Java compiler written in Java is nothing special.
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Speaking of, where did the computer-science demographic on slashdot make off to?
I don't know. I wish I did, because I would go there too.
Or maybe they are still around, and it's just that the number of know-nothing posters has increased so hugely.
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Re:Virtualize Everything (Score:5, Insightful)
If you have a complete C++ application that runs fine on native code, then obviously this would be silly. But if you bothered to RTFA, you know that this serves a simple and obvious purpose: reuse. If you need rendering code for your Flash game, and the best code available is in C or C++, it's a lot easier to just recompile the code than it is to hand-translate the code into ActionScript.
Not to mention a lot cleaner.. (Score:2)
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Hmm, have you ever played Momentum Missile Mayhem? Good game, though you can't really play it inside a browser (too sluggish.) The thing is about 7 MB, which is tiny for a PC game, but pretty big for a Flash game. One wonder if it wouldn't benefit from a little re-coding in C.
Quake. Quake for fucks sake! (Score:2)
Re:Quake. Quake for fucks sake! (Score:4, Interesting)
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http://www.abrahamjoffe.com.au/ben/canvascape/textures.htm [abrahamjoffe.com.au]
Who wants to download a hundred megabyte file just to play in their browser?
More details (Score:5, Informative)
You post your ideas for Adobe here: http://www.adobe.com/cfusion/webforums/forum/categories.cfm?forumid=72&catid=755&entercat=y [adobe.com] These forums are closely watched by the flash player team.
Designflow -- Very Cool (Score:5, Interesting)
More details here: http://www.llvm.org/devmtg/2008-08/ [llvm.org] (Look for the topic - Flash C Compiler: Compiling C code to the Adobe Flash Virtual Machine)
While scrolling down looking for the Adobe talk, I found this:
Designflow: using LLVM to compile to Hardware - This project uses LLVM to compile code to a mixed hardware and software implementation. This detects pieces of programs that may be efficiently compiled to VHDL and synthesized them onto an FPGA. The rest of the program is compiled to PowerPC code and uses to drive the FPGA. The system automatically handles data migration and other handshaking between the two systems.
Waaaayyyy more interesting than LLVM for flash. This is cool!!!
Increased performance (Score:5, Interesting)
Increased performance over what exactly? Is there some other 'slower' bytecode that the VM runs? The summary fails to mention this. I don't see how compiling C++ to the AS3 bytecode would be any faster than compiling some Flash language to AS3 bytecode, or writing AS3 bytecode directly. I assume it is the AS3 bytecode itself that is faster, in which case the 'compiling C++' part is irrelevant to the increased performance.
Re:Increased performance (Score:5, Interesting)
The point is that the LLVM project can do far more optimization before being compiled to bytecode than Adobe's ActionScript compiler is doing, and as a result it runs faster.
Yes... Adobe's ActionScript compiler sucks at generating bytecode for their own VM, and even they admit it.
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This is not where Adobes priorities should be! (Score:5, Interesting)
The Flash VM is slow beyond belief when getting into large data-structures, event its native array parsing is incredibly slow.
Object instantiation is slower than molasses. We were averaging about 7 seconds to instantiate about 500 fairly complex objects that in most any other language, compiled or interpreted would have easily been created in a thousandth of that time.
The Flash VM's garbage collection is perfectly incapable of doing anything that involves long application run-times and leaks memory all over the place, even inside its native low-level components. It got to the point that even doing any proactive cleanup in our code was totally fruitless and I am sorry to add that a lot of the proactive steps we were taking have been left by the wayside because it is utterly hopeless to release all the memory you have taken back to the system.
Loading an SWF inside another SWF and then disposing of it will not stop the loaded SWF's playback and it does not release it from memory. Instead of Adobe fixing this obvious bug they just added a different method in Flash 10 called "unload and stop" or something like that. This requires anyone who wants to fix this issue to go back and refactor their code!
There are also numerous inconsistencies between applications that run in Flash and those that run in AIR, even though the code base is the same and the idea is that you do not have to change any obvious code to make it work in one platform or another.
Even flashes most basic function, doing vector drawings and animations fails horribly under load. We have had to hack and jury-rig numerous fixes in to compensate for Flash's seemingly random graphical glitches.
If Adobe wants to be taken seriously as a application platform developer, especially one that is used on the desktop they need to get their shit together because right now it feels like a childs toy or half-assed attempt to enter a new market.
Unfortunately the project, the client, and the management have chosen this path for us and we are stuck with it so I really hope that Adobe gets it together because its been a royal pain doing this sort of work on their platform.
Re:This is not where Adobes priorities should be! (Score:4, Insightful)
Re:This is not where Adobes priorities should be! (Score:5, Insightful)
I think I see your problem right there... there is nothing like using the right tools for the job, and this is nothing like using the right tools for the job. ;-)
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Well, Flash is the only tool for the job when you need an application that runs the same in all (relevant) browsers on all (major) platforms with no installation by the end user. Flash solves a lot of problems, and Flex has a really nice UI toolkit. Flash 10 still hasn't fixed a lot of the performance issues, so the door is open for Unity or Silverlight, but I'm not holding my breath.
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Really though they are not that big. One is a graphing and reporting application, and another is a web interface for a CMS that we developed in house as a product.
The first could have been done in Java, or a cross-platform C++ framework like Qt (though that would remove the selling point that it runs on the desktop and the browser), and the second could be done purely in JS, so there were alternatives, maybe more appropriate ones, but they were not taken
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You are one cynical bastard. I can't say things work differently _everywhere_, but there certainly are many companies that work nothing like this.
Specifically, they skip 1, 2, 5, 6 and 7. My experience leads me to believe that management typically chooses the wrong technology and tools simply out of their own ignorance and step 6 never happens simply because of a prevalent not-invented-here attitude.
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you use a janitor class or just a Dictionary to hold references to all of your objects so you can delete them and any listeners or timers or other objects that are not removed automatically. Google memory management for as3 and you should find a few good examples.
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I will say the exact opposite. We made a large enterprise application for a UK health insurer. All interface and logic was flash (not even Flex) with custom-built components. It was a lot better than the alternatives (the initial plan was to use ASPX for the interface). It was nice and fast too (the bottlenecks were on the server). By my last count there were over 200K lines of AS code.
I also made a chess game [flashchess3.com] in AS3. It's not Deep Blue but after optimizations it's fast enough to have fun with (and strong e
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Re:This is not where Adobes priorities should be! (Score:5, Interesting)
Yes, many times, and no I do not think my code is ever perfect, or even near perfect, but the proof is in the pudding, you can make very simple test cases and see very obvious drawbacks using just their code/UI components.
One of the problems with working with Flex is that sometimes you have to do things that seem incredibly retarded to get things done. Look at the extensive use of the callLater method in a lot of the Flex SDK code. This method basically says "ok things aren't done, so do it later." Not only does this seem to just patch a problem with not correctly sequencing your methods to fire when they are able to, but it creates huge memory leaks and is horribly hard to debug as you rarely can see past the point of the callLater in the stack.
This reminds me of another problem, in the fact that you can not catch run-time errors at the "root/base" level of the Flash/Flex/AIR application, and even better, if you do not have a debug version of Flash player (and forget it in AIR) then it just completely ignores the error and continues on as if nothing has happened. This then causes Flash to start chucking random errors and glitches that might get caught in your own try-catch blocks much, much later, and you will find that code that works perfectly under every imaginable situation is now glitching with really no known cause. Debugging can be quite the nightmare in Flash.
I don't want to be off topic but... (Score:2, Interesting)
Anyway, compiling C/C++ into the Actionscript VM might start (or reinvigorate) a trend of broader programing language support for VM's. The specific platform that came to mind was Android. One of the main complaints I've been hearing is that developers are contained by Android's own (some say retarded) implementation of Java. I think it would be awesome to see something like a C/C++ compiler for othe
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http://en.wikipedia.org/wiki/Java_processor [wikipedia.org]
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the runtime environment for Android is written in C++ anyway, well the underlying libraries are. Most of the problems for Android seem to be a lack of a C++ development environment for people coming from Symbian and/or Linux who have existing code they want to port/re-use.
The reason we have so many different VMs is because of licensing. IIRC Sun's 'open' java licence doesn't apply to the one used in mobile devices. We do have a decent common 'VM' ... its Linux. If you code for a linux implementation, you'll
why... (Score:3, Insightful)
Let's say... SDL gets a flash port, then you basically can turn your simple C++ game into a game that people can run in flash computers without downloading... At least it sounds interesting.
Broken unicode input for years (Score:2, Interesting)
Wow, is the Python & NES link useless (Score:2)
Now for hassle-free Java applets (Score:4, Funny)
Finally! Java applets are always so full of hassle to get running compared to Flash objects.
Now I can compile the JVM to Flash and run my Java applets inside Flash - no more need to install those meddlesome Java plugins!
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Are you sure you don't want to port Bochs first so you can run Java on Windows 98 in your Flash?
A good Javascript isn't all that slow (Score:5, Interesting)
Here are some basic timings I made just to give a rough feel for the relative speeds (don't read too much into them). The first entry provides the timings for C, which is obviously compiled, purely as a basis for comparison with the scripting languages. Note that the times for C are in milliseconds, while the rest are in seconds, lower is better:
Execution times for recursive F/P factorial(n) to
Langs @ 2008 Times: n=1 n=170 difference
C 0.000 ms 0.090 ms 0.090 ms
Lua 0.001 s 0.005 s 0.004 s
Parrot-opt/iterative 0.013 s 0.018 s 0.005 s
Parrot/iterative 0.014 s 0.019 s 0.005 s
V8-Javascript 0.007 s 0.013 s 0.006 s
Ocaml 0.022 s 0.029 s 0.007 s
Python 0.013 s 0.027 s 0.014 s
Parrot-opt/recursive 0.013 s 0.029 s 0.016 s
Mozilla-Javascript 0.001 s 0.018 s 0.017 s
Perl 0.002 s 0.021 s 0.019 s
Nickle 0.031 s 0.065 s 0.034 s
Parrot/recursive 0.014 s 0.056 s 0.042 s
Ruby 0.041 s 0.095 s 0.054 s
Lua_on_Parrot 0.303 s 1.314 s 1.011 s
Although every scripting language is still at least some 50 times slower than compiled C, interpreters and language VMs in general have been improving steadily over recent years, and Javascript in particular is getting a lot of attention now, with more optimizations in the pipeline from all the major players.
The gap will shrink, guaranteed.
[Sorry about the Code posting mode, it's not very easy on the eyes
How does java compare? (Score:2)
For in-browser apps that want to be reasonablly cross platform (supporting at least wintel,lintel and mac) you have essentially three options.
Javascript with browser DOM/xmlhttprequest
Flash
Java applet (which means java with the user interface made with either AWT or swing)
I would guess at actually running code the java applet will be fastest but java's bloated libraries mean it will probablly be slowest to load. Am I correct?
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You might be interested in my project Clue [sf.net], which is fairly similar to the Adobe project --- it compiles ANSI C into dynamic programming languages. The current released version does Lua, Javascript and Perl5; the version in SVN also does C and has a half-finished Common L