instruction description

Hi,

I need the description of LLVM instructions on bitcode file. I can’t find it on any document. Reading the code costs much time. Does a description like this exist ? It should look like the JVM Instruction set on the link bellow:

http://java.sun.com/docs/books/jvms/second_edition/html/Instructions2.doc.html

Thanks for any advise.

Quang