Java processor

A Java processor is the implementation of the Java Virtual Machine (JVM) in hardware. In other words the bytecodes that make up the instruction set of the abstract machine become the instruction set of a concrete machine.

Implementations

Up to now only a few Java processors are available:

• picoJava was the first attempt by Sun Microsystems to build a Java processor
• aJ100 from aJile. Available on boards from Systronix
• Cjip from Imsys Technologies. Available on boards and with wireless radios from AVIDwireless
• Komodo is a multithreaded Java microcontroller for research on real-time scheduling
• FemtoJava is a research project to build an application specific Java processor
• ARM926EJ-S is an ARM processor able to run java bytecode
• Java Optimized Processor for FPGAs. A PhD thesis is available
• SHAP bytecode processor from the TU Dresden
• jHISC provides hardware support for object-oriented functions, as described in a Microprocessors and Microsystems article
• ObjectCore is a multicore Java processor designed by Vivaja Technologies.