Qfwfq Opus 1
Dedicated to the memory of ALGOL N
INUJIMA, Masaru qfwfq@kt.rim.or.jp

rhizome/pi

• Download rhizome-0.57.tar.gz.

• It is implemented completely in continuation passing style. Being so, it never makes recurseive call in machine labguage level, and depth of stack is bound to finite constant (I did not investigate the precise limit, but it must be no greater than 1 kilobytes.)
• Application of call-with-current-continuation and resulting comtinuation object is very fast. Execution time of them is no greater than normal procedures (such as car, cdr, cons.)
• Employes syntax-case as low level macro system.
• Aside from trace, there is a debugger capable of single stepping of LISP code. This debugger itself is mostly written in LISP code, and implementing custom debugging feature is also possible (but, procedures for hooking evaluator are not fully documented yet.)
• Handling errors and signals are possible.
• There is no limitation of program which may be compiled. Execution of compiled program is done simillary to loading, by sequential evaluation of top level expressions.
• Shared objects (DLLs in term of Win32) can be loaded dynamically and functions in them can be called from scheme code. Moreover, callbacks can be written in scheme code. See doc/extfunc for details.

rhizome/kappa is a indivisual package consisting of runtime routines of rhizome/pi, which will be useful in other symbolic processing languages.

Supported environments

• OpenBSD 3.7 i386
• Linux i386
• Win32 (intel) with Microsoft, Borland or lcc-win32 C compiler
• Win32 (intel) with Cygwin environment

• Installation instructions.
• How to use it.
  • Usage of interpreter and compiler.
  • Procedures and such proper to rhizome/pi.
  • Usage of debugger.
  • Other notes.

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