i am looking into making my own OS just to say i've done it. i know that there is a project called JNode that has done one in assembly and java. what i was wondering was, what embedded graphics do you need to run java? i know java uses the graphics of the specific os so this confuses me
+1
A:
I think you would need to port the JVM to your OS. Have a look at the Java Virtual Machine spec. It will tell you exactly what need to implement to support Java.
Asaph
2009-09-23 18:31:42
A:
If you need to implement AWT/Swing, then you obviously need to have some kind of library that can draw 2D graphics in a screen. I'd recommend however to start from implementing the virtual machine and some basic libraries. Printing in a screen will be sufficient.
Have a look here for a list of implementations of JAVA for the ARM platform. Kaffe is interesting.
kgiannakakis
2009-09-23 18:36:13
i'm looking to implement awt/swing could i use the same libraries most linux systems operate under? or could i use something like opengl as the systems library?
Lonnie Ribordy
2009-09-23 18:53:16
OpenGL doesn't have the line and curve primitives used in Graphic2D, but is used in Sun's Java implementation to improve some pixmap rendering.
Pete Kirkham
2009-09-23 18:56:29
could GTK+ be used then?
Lonnie Ribordy
2009-09-23 18:57:59
A:
Java can run in headless mode. That might be a good starting point suitable for server side stuff, which you can then extend if you feel like it.
Have a look at Sanos - http://www.jbox.dk/sanos/ - which is a tiny OS providing just the facilities needed to run the Windows JVM.
Thorbjørn Ravn Andersen
2009-09-23 18:38:42