Java bytecode specification [closed]

Question

Closed. This question does not meet Stack Overflow guidelines. It is not currently accepting answers.

---

Want to improve this question? Update the question so it's on-topic for Stack Overflow.

Closed 2 years ago.

Is there a nice place for learning the JVM bytecode instruction set. The specification perhaps and maybe some tutorials?

I ask because I would like to design a toy language and a compiler for it that generates JVM bytecode.

Thanks for your knowledge and perhaps googling.

Answer 1

Also useful are the javap disassembler and bytecode manipulation frameworks like ASM and BCEL, even if all you want to do is verify your classes.

Answer 2

Perhaps check out Preon's example on how to parse a Java class file. It has a fairly complete representation of the bytecode in a Java object model.

Answer 3

To start with, I suggest generating Java code from your language.

This will make reading and debugging much simpler.