An efficient machine-independent procedure for garbage collection in various list structures
Communications of the ACM
Revised Report on the Algorithmic Language Scheme
Higher-Order and Symbolic Computation
Generation of fast interpreters for Huffman compressed bytecode
Proceedings of the 2003 workshop on Interpreters, virtual machines and emulators
Full TCP/IP for 8-bit architectures
Proceedings of the 1st international conference on Mobile systems, applications and services
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Due to their tight memory constraints, small microcontroller based embedded systems have traditionally been implemented using lowlevel languages. This paper shows that the Scheme programming language can also be used for such applications, with less than 7 kB of total memory. We present PICOBIT, a very compact implementation of Scheme suitable for memory constrained embedded systems. To achieve a compact system we have tackled the space issue in three ways: the design of a Scheme compiler generating compact bytecode, a small virtual machine, and an optimizing C compiler suited to the compilation of the virtual machine.