问题
I'm enrolled in a compilers course, using the "dragon book" as textbook. It gives instructions on how to convert the intermediate code generated by its compiler to an object language, assembly.
My question is: where can I find instructions to convert an intermediate code in the 3-address format to java bytecode, for the same grammar used in the book?
Textbook site: http://dragonbook.stanford.edu/index.html#courses
回答1:
If you want to know how to create a binary Java classfile yourself, there's no better resource than the official JVM specification.
If you want to write a classfile in a human readable textual format, there are various assemblers available: Krakatau, Jasmin, and Lilac among others. Note that Jasmin is old and largely unmaintained, though the Sable Research Group maintains a fork of it for use with their own tools.
回答2:
I have implemented a translator that takes the three-address intermediate code, generated by the Dragon Book implementation of the front end of a compiler, and converts it to a Java bytecodes with a syntax similar to Jasmin. Then it uses Krakatau to assemble it into a classfile executable through the JVM.
You can check my implementation at https://github.com/joaofbsm/smallL/tree/master/code/translator.
来源：https://stackoverflow.com/questions/34122323/from-intermediate-code-to-java-bytecode-dragon-book