[PD-dev] Functional Programming & C code generation

Thomas Grill gr at grrrr.org
Wed May 15 10:49:37 CEST 2013

Btw, Tom, great to see you back in Pure Data business!

Thomas Grill

Am 14.05.2013 um 18:18 schrieb Tom Schouten:

> Hi Pd devs
> Is there anyone here interested in Functional Programming and C code
> generation for DSP code?
> I'm working on a system for DSP code development based on the principle
> of Abstract Interpretation
> http://en.wikipedia.org/wiki/Abstract_interpretation
> Basically, it will allow several interpretations of a single
> specification program:
> - specification as a pure functional program
> - imperative C code generation (for passing to C compiler or LLVM)
> - Z transform for frequency plots of (linearized) transfer function
> - automatic differentiation for all kinds of derivative-based tricks
> - ...
> It is written in Racket
> http://racket-lang.org/
> It's starting to get to a point where it is actually useful (there is a
> basic synth core) and could use some feedback, but please note it is
> very experimental and still needs a lot of work. Familiarity with Racket
> is probably a prerequisite at this point to make sense of it. Current
> code is here:
> http://zwizwa.be/darcs/meta/rai/
> It is part of a darcs archive that can be fetched using
> darcs gethttp://zwizwa.be/darcs/meta
> I use Pd for most of the experiments.
> There is a generator for Pd externs, and a "live coding" reload mechanism
> that can reload recompiled processing code without messing up internal state,
> as long as the types are compatible.
> Cheers
> Tom
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