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Re: librep's indirect threaded bytecode interpretter


Per Bothner <per@bothner.com> writes:

> Java bytecodes are admittedly far from optimal for Scheme.  The point
> about using Java bytecodes is to benefit from all the engineering and
> research that people are putting into *fast* interpreters, such as
> Just-in-Time compilers, as well as all the other Java-related tools
> and engineering.

I think this is a very important point.  But do we have any *free*
Java bytecode interpreters?  And if so, how fast are they (how fast is
the byte code that Kawa produces?); what about memory consumption,
"startup time" (time the VM needs to initialize) etc.


> Clearly compiling Scheme into efficient Java bytecodes is
> non-trivial, but that task has been more-or-less solved in Kawa.
> (Not to say that Kawa can't be improved, of course.)

Hmm, "Guile" is an "extension language" for programs written in C.  I
don't think this is possible with Kawa, is it?---Yes, I know that
there are "bridging technologies" like Corba, but still Kawa and Guile
belong to two different domains.


Jost

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