Spice Lisp

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Spice Lisp is a Lisp dialect and its implementation originally written by CMU's Spice Lisp Group which targeted the microcode of the 16-bit PERQ workstation and its Accent operating system; it used that workstation's microcode abilities (it provided microcodes for Pascal, C, and Ada besides) to implement a stack architecture to store its data structures as 32-bit objects and to enable runtime type-checking. It would later be popular on other workstations.

Spice Lisp evolved into CMUCL, a Common Lisp implementation.


  • Gabriel, Richard P. (May 1985). Performance and evaluation of Lisp systems (PDF). MIT Press; Computer Systems Series. ISBN 978-0-262-07093-5. LCCN 85-15161.
  • CMUCL history