Deprecated

As3c is no longer in development. Checkout Apparat instead. It includes a more advanced and robust inline assembler plus tons of other features.

As3c

As3c is a bytecode compiler for the AVM2 written in C#.

Features

It allows you to...

• compile inline assemlber instructions written in in ActionScript 3 while maintining full debugging capabilities.
• compile pure bytecode into a precompiled output format.
• inject precompiled files into a SWF by replacing or creating methods.

As3c works great with Mono on Linux and OS X. You do not even have to recompile it.

Syntax example

Hello world

This example is equivalent to a simple trace('Hello World!').

package  
{
	import flash.display.Sprite;
	
	import de.popforge.asm.Op;
	import de.popforge.asm.__asm;		


	/**
	 * Hello World example using As3c inline asm syntax.
	 *
	 * @author Joa Ebert
	 */
	public class Main extends Sprite 
	{
		public function Main()
		{
			__asm(
				Op.findPropertyStrict('public::trace'),
				Op.pushString('Hello World!'),
				Op.callPropertyVoid('public::trace', 1)´
			);
		}
	}
}

New possibilities

When using asm you can define labels wherever you want. You can also jump to labels from any point in your code. This opens completly new possibilities as you can see. Although this one might be a little bit confusing ;)

package  
{
	import flash.display.Sprite;
	
	import de.popforge.asm.Op;
	import de.popforge.asm.__asm;		

	/**
	 * Asm example for new possibilities when using labels and inline asm.
	 * 
	 * @author Joa Ebert
	 */
	public class Main extends Sprite 
	{
		public function Main()
		{
			if (true === true)
			{
				__asm(Op.jump('.else'));
				__asm('.if:');
				
				trace('Hello if!');
			}
			else
			{
				__asm('.else:');
				
				trace('Hello else!');
				
				__asm(Op.jump('.if'));
			}
		}
	}
}

Alternatives

If you are familiar with the haXe language you might want to take a look at hxASM. An ActionScript 2 alternative is flasm.