Actionscript

Most opcodes are available up to SWF v6, but the current actionscript implementation is far from complete. Only the following objects and methods are currently implemented:

Array: concat join pop push reverse shift slice sort splice toString unshift

Color: getRGB getTransform setRGB setTransform

Key: addListener getAscii getCode isDown isToggled removeListener

Math: abs acos asin atan atan2 ceil cos exp floor log max min pow random round sin sqrt tan

MovieClip: attachMovie createEmptyMovieClip duplicateMovieClip getBounds getBytesLoaded getBytesTotal globalToLocal gotoAndPlay gotoAndStop hitTest localToGlobal nextFrame play prevFrame removeMovieClip startDrag stop stopDrag swapDepths toString unloadMovie

Object: registerClass

String: charAt charCodeAt concat fromCharCode indexOf lastIndexOf slice split split substr substring toLowerCase toUpperCase

I also don't have the extension API worked out yet, but that's on the top of my TODO list.