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| Questions about Bytecode Sean.D.Gillespie@gmail.com (Bison) (2007-04-18) |
| Re: Questions about Bytecode englere_geo@yahoo.com (Eric) (2007-04-19) |
| Re: Questions about Bytecode DrDiettrich1@aol.com (Hans-Peter Diettrich) (2007-04-19) |
| Re: Questions about Bytecode cfc@shell01.TheWorld.com (Chris F Clark) (2007-04-19) |
| Re: Questions about Bytecode Sean.D.Gillespie@gmail.com (Bison) (2007-04-20) |
| Re: Questions about Bytecode anton@mips.complang.tuwien.ac.at (2007-04-23) |
| Re: Questions about Bytecode ajohnson@mathworks.com (Andy Johnson) (2007-04-23) |
| Re: Questions about Bytecode DrDiettrich1@aol.com (Hans-Peter Diettrich) (2007-04-23) |
| Re: Questions about Bytecode haberg@math.su.se (2007-04-23) |
| Re: Questions about Bytecode chris.dollin@hp.com (Chris Dollin) (2007-04-23) |
| Re: Questions about Bytecode gah@ugcs.caltech.edu (glen herrmannsfeldt) (2007-04-25) |
| Re: Questions about Bytecode Peter_Flass@Yahoo.com (Peter Flass) (2007-04-26) |
| Re: Questions about Bytecode cdiggins@gmail.com (Christopher Diggins) (2007-04-26) |
| [1 later articles] |
| From: | "Andy Johnson" <ajohnson@mathworks.com> |
| Newsgroups: | comp.compilers |
| Date: | 23 Apr 2007 07:49:29 -0400 |
| Organization: | The MathWorks, Inc. |
| References: | 07-04-06107-04-068 07-04-071 |
| Keywords: | interpreter, Java |
| Posted-Date: | 23 Apr 2007 07:49:29 EDT |
To answer your question about labels, they aren't implemented in the Java
bytecode at all. Label points are derived from destinations of branch
points. If you need to know which bytecodes are reachable via branching,
you have to synthesize the bytecodes. Since you know the size of the
bytecodes in advance, you can easily create a bitmap to show the label
points.
-AndyJ
"Bison" <Sean.D.Gillespie@gmail.com> wrote in message
> I'm also wondering how labels are implemented in the bytecode.
>
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