Squawk virtual machine

From Wikipedia, the free encyclopedia

The blue area is written in C/C++ while the yellow area is written in java

Squawk is java virtual machine for embedded system and small devices. Most JVMs, if not all, are written in low level languages such as C/C++ and assembler. What makes Squawk different from the other virtual machine is that Squawk's core is mostly written in Java. The research project was inspired by Squeak, which has a Java Micro Edition heritage and features a small memory footprint. It was developed to be simple with minimal external dependencies. Its simplicity made it portable, easy to debug, and maintain. Squawk also provides an isolated mechanism by which an application is represented as an object. In Squawk, one or more applications can run in the single JVM. Conceptually, each application is completely isolated from all other applications.