[www
tom@zwizwa.be**20080923114634] {
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-<p> As a language, its defining properties are a linear memory model
-  to reduce memory usage and promote memory locality for video
-  processing, and the use of dynamic typing and generic functions. The
-  code is a result of a long experimental evolution which started in
-  2002, and is somewhat idiosyncratic. It is written entirely in
-  C. Cleaning up the PF virtual machine and processing code, and
-  generating most from a higher level description language is part of
-  the objectives of the <a href="http://zwizwa.be/staapl">Staapl</a>
-  project.
+<p> As a language, its defining properties are a linear memory
+  management model to improve locality for video processing (cache
+  friendliness), and the use of dynamicly typed multiple dispatch
+  (generic functions inspired by CLOS). The code base is a result of a
+  long experimental evolution which started in 2002, and is somewhat
+  idiosyncratic. It is written entirely in C.  Its last major
+  restructuring introduced primitives for <code>select()</code> based
+  non-blocking I/O which is used to build a real-time multitasking
+  engine based on a round-robin scheduler.  Cleaning up the PF virtual
+  machine and processing code, and generating most from a higher level
+  description language is part of the objectives of
+  the <a href="http://zwizwa.be/staapl">Staapl</a> project.  In the
+  mean time I am working on simplifying the API and eliminating some
+  unnecessary cleverness, making the code more homogeneous.
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-language itself is considered stable. The way I see things now (June
-2008), the core language part will probably be absorbed in Staapl, and
-the simplified glue layers for Linux media APIs will probably find a
-home in a C library to make them available to other projects; PF will
-shift more towards video processing: refocussing to the original goals
-after a 3 year excursion into OpenGL graphics.
+language itself is considered stable. The way I see things now
+(September 2008), the core language part will probably be absorbed in
+Staapl, and the simplified glue layers for Linux media APIs will
+probably find a home in a C library to make them available to other
+projects; PF will shift more towards video processing: refocussing on
+the original goals after a 3 year excursion into OpenGL generative
+graphics.  I am currently working on integrating PF
+with <a href="http://www.plt-scheme.org/">PLT Scheme</a>, with an eye
+on integration
+with <a href="http://www.pawfal.org/fluxus/">Fluxus</a>.
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+<pre>
+Tue Sep 23 13:38:48 CEST 2008
+</pre>
}