This repository presents a suite of Java Virtual Machine (JVM) interpreters developed as a collaborative project for the 'Virtual Machines' course at Philipps University of Marburg. It showcases the implementation and performance comparison of three distinct interpreter types:

• Decode-Dispatch Interpreter: A traditional approach where each instruction is decoded and executed in a step-by-step manner.
• Indirect-Threaded Interpreter: Leverages a method dispatch table to streamline instruction execution.
• Direct-Threaded Interpreter: Employs computed gotos for instruction handling, thereby reducing dispatch overhead.

We implemented and tested these interpreters using four different programs, enabling a detailed analysis of their respective efficiencies and execution characteristics.

The comparative analysis underscored fascinating performance trade-offs among the interpreter types, showcasing the impact of design choices on execution dynamics.

• Mohamad Kaser
• Parmida Talebi
• Ugur Taysi

For more information on the JVM instruction set, refer to Chapter 6: The Java Virtual Machine Instruction Set.