Tabular Code Generation: Write Once, Generate Many

PressPot is a system that adds annotations to Java .class files. [3] These annotations are used by an “annotation-aware” Java Virtual Machine (JVM) which uses these annotations to generate high-quality machine code quickly. If these annotated .class files are sent to a normal JVM, they are ignored and the program runs normally. One of the annotations, used for assigning machine registers, is called the virtual register or VR annotation. In the PressPot system, there are two components, the annotator (the front-end) and the annotation-aware Java Virtual Machine (the back-end). The Press Pot back-end is based upon kaffe, an open-source JVM. [6] These two components both need information about the semantics of the Java bytecodes, as well as information about the associated VR annotation. Although the annotator (the front-end) and