Stories
Slash Boxes
Comments
NOTE: use Perl; is on undef hiatus. You can read content, but you can't post it. More info will be forthcoming forthcomingly.

All the Perl that's Practical to Extract and Report

The Fine Print: The following comments are owned by whoever posted them. We are not responsible for them in any way.
 Full
 Abbreviated
 Hidden
More | Login | Reply
Loading... please wait.
  • First up: Very Cool. However, I'm getting a bit lost on the hand waving here.

    What actually converts the JBC into PBC? Are you doing this by hand atm (i.e. converting JBC to parrot assembler, then assembling it,) or is there some form of automated system?

    As I understand it you're adding new op codes to the pvm so that you have a one to one translation for JBC and PBC. Doesn't this add more operations to the VM? Don't adding more operations slow down the VM implementation (because each operation takes

    • Yes, there is a lot of handwaving ;-)

      It was just weekend project, so I converted the JBC into PBC by hand. As I work on this more, I'll be using Java::JVM::Classfile to do it automatically.

      This does indeed mean adding more opcodes to Parrot. Parrot has around 600 opcodes already and I added 14. If I added all ~255 JVM opcodes, it would indeed increase the total number of Parrot opcodes, but the slowdown is pretty small. In fact, Parrot will have dynamically loadable opcode libraries, so in future this slo