We describe in this paper the implementation and use of custom specializers in two current dialects of Lisp: Skill and Common Lisp. We motivate the need for such specializers by appealing to clarity of expression, referring to experience in existing industrial applications. We discuss the implementation details of such user-defined specializers in both dialects of Lisp, detailing open problems ...

JEmacs is a re-implementation of the Emacs programmable text editor. It is written in Java, and uses the Swing GUI toolkit. Emacs is based on the extension language Emacs Lisp (Elisp), which is a dynamicallyscoped member of the Lisp family. JEmacs supports Elisp, as well as the use of Scheme, a more modern statically-scoped Lisp dialect. Both languages get compiled to Java bytecodes, either in ...

The approach to speed up a Lisp interpreter by implementing it in firmware seems promising. A microcoded Lisp interpreter shows good performance for very simple benchmarks, while it often fails to provide good performance for larger benchmarks and applications unless speedup techniques are devised for it. This was the case for the TAO/EL6 system. This paper describes various techniques devised ...

This paper presents a language for the development of multi-agent systems that allows a user to write programs with a small effort thanks to a predejined agent model and a set of specialized primitives for agent management. Moreovel; the user can develop agent parts at a low level taking advantage of all the potentialities of C++, Common Lisp and Java object-oriented languages, and reusing a la...

The paper describes a unification-based language engineering platform meant for development of reversible language resources and linguistic applications. The platform, called EGLU (Environnment Generique Linguistique d’Unification) is an enhanced generalized port of ISSCO’s original ELU from SUN-OS Allegro Common Lisp to Macintosh Common Lisp and Carnegie Mellon Lisp (under Solaris). Several la...

An implementation of Cambridge LISP for a Motorola 68000 based computer is described, and the implementation of the algebra system REDUCE hosted by it is considered. The resulting systems are compared against mainframes and a minicomputer running LiSP and REDUCE. The assertion of this work is that a new style of personal algebra computer is now possible, which is both fast and reasonably priced...

Portable Standard LISP (PSL) is a portable implementation of the programming language LISP constructed at the University of Utah. The version 3.4 of PSL was implemented for Cray X-MP computers by KonradZuse-Zentrum Berlin; this implementation is based to an important part on the earlier implementation of PSL 3.2 at the University of Utah, Los Alamos National Laboratories and Cray Research Inc. ...

Prolog and Lisp benchmark timings are compared on the VAX 8600. The measured Lisp-toProlog time ratio varies between 0.143 and 2.83. These differences between Prolog and Lisp performance can be explained by studying the structure of the benchmarks and the language implementations. Previous authors have used such measurements as evidence that one language is "better" than the other; their works ...

We describe our experience in converting OMAR, a large human-performance modeling simulation environment, originally written completely in Lisp, into Distributed OMAR [D-OMAR] a distributed, hybrid Lisp/Java system. In the resulting system: • The kernel simulation system (Core-OMAR) remains written purely in Common Lisp, and as such is able to take full advantage of the relevant features of Lis...