I want a JVM assembler that is straightforward and simple. It should take a text file written in the mnemonic language described in The Java Virtual Machine Specification and produce class files, i.e. bytecode.
To be clear: I don’t want a library that can generate class files from invocations of an API.
What are the current statuses of the JVM assemblers? Do they support invokedynamic (not mandatory to me, but an advantage)? On what operative system can I use them? What are their individual pros and cons?
Jasmin is the de facto standard. Recent versions support invokedynamic. It’s written in Java, so it’s portable.