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Microcontrollers
===================
LISPs on MCUs
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See also: article on extremely small interpreters for code density.
Hedgehog (http://hedgehog.oliotalo.fi/) is a variant of LISP for embedded chips
released under a BSD (library) and LGPL (tools) license. It has some debugging
tools and can run on x86 as well for development. The model is to compile
bytecode on a development machine and execute it on the MCU; there is no REPL
on the device itself. Developed and maintained by a Finish company (.fi TLD?)
mostly for use distibuting new bytecode programs. Implementation is well
documented.
PICBIT is one of a series (BIT and PICOBIT) of Scheme implementations for very
small (few kb RAM) chips. Code is compiled to bytecode on a development machine
and run/interpreted on the device. This is a mature academic project; there are
a couple papers which summarize the approach and design decisions.
ARMPIT Scheme (http://armpit.sourceforge.net/) is a full embeded Scheme
environment for ARM MCUs (including Cortex-M3s). It is an active project
written in
"L" is a Common LISP implementation for embedded MCUs with about a MB of RAM;
it was an MIT AI Lab project. A real time operating system written in C (VENUS)
runs on the metal and an L framework called MARS coordinates message/event
handling between multiple agents. It was written for robotic research.
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