Java MIDP implementationon

HTML5 and Flash

Yu Kobayashi(yukoba)

Who am I?

□“Virtual Machines on JavaScript and ActionScript” OTAKU

□My 4th project of screen sharing implemented by JavaScript and ActionScript

Web Browser

HTML5 Flash

Java MIDP Implementation

Application

My Compiler

Java class file

JavaScript ActionScript

Java source code

Demo

http://orto-app.com/

Just release now!Alpha Version

Control Flow Graph

Java Source codea = 1b = 1while (true) { c = a + b; System.out.println(c); a = b; b = c;}

a = 1b = 1

Is thread resume?

ResumeSystem.out.println(c)

c = a + bSystem.out.println(c)

a = bb = c

Java mnemoniciload 2istore 1iload 3istore 2

Java source codea = bb = c

JavaScriptstack.push(localVar2)localVar1 = stack.pop()stack.push(localVar3)localVar2 = stack.pop()

More Optimized JavaScriptlocalVar1 = localVar2localVar2 = localVar3

JIT x86mov eax, [0004h]mov [0000h], eaxmov eax, [0008h]mov [0004h], eax

Optimized JavaScriptstack1 = localVar2localVar1 = stack1stack1 = localVar3localVar2 = stack1