We employ an unique approach where the interpreter and the JIT tiers are automatically generated from a semantical description of the bytecodes. We believe this will ultimately result in less engineering cost, cleaner and more maintainable code, as well as the generalizability to support other languages.

It is important to note that the baseline JIT is generated from the same bytecode semantic description that Deegen uses to generate the interpreter. Therefore, for a language implementer, the baseline JIT comes for free:

• No need to have any assembly knowledge.
  
• No need to manually engineer the JIT.
  
• No need to manually keep the JIT updated with new language features.

Because Deegen does all the work automatically!