Jasmin is an assembler for the Java Virtual Machine.
Edit By BS Editor: Jasmin is an assembler for the Java Virtual Machine. It takes ASCII descriptions of Java classes, written in a simple assembler-like syntax using the Java Virtual Machine instruction set. It converts them into binary Java class files, suitable for loading by a Java runtime system.

Jasmin was originally created as a companion to the book Java Virtual Machine, written by Jon Meyer and Troy Downing and published by OReilly Associates. Since then, it has become the de-Facto standard Assembly format for Java. It is used in dozens of compiler classes throughout the world, and has been ported and cloned multiple times. For better or worse, Jasmin remains the oldest and the original Java assembler. you can free download Jasmin 2.4 now.