Neun Portable Standard LISP for Cray X - MP Computers Preprint SC 86 - 2 ( Dezember 1986 )

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. at Mendota Heights. During the work on implementing PSL the language LISP was investigated for areas which can be supported by vector hardware. One area was found in the COMMON LISP sequence functions and some typical application areas of LISP programming can be improved by vector processing too. A model for the implementation of vector instructions in LISP was developed. For arithmetic an experimental vectorizing extent of the PSL compiler was constructed. With this means full vector hardware capacity can become available for LISP applications. The topic is discussed with full length in the paper /7/. The work of implementing Portable Standard LISP (PSL) version 3.4 for Cray-1 and Cray X-MP computers started in December 1985 as a cooperative project of Konrad-Zuse-Zentrum in Berlin and Cray Research and has led to a first distributable release, named "Release 5" now. The present implementation is a continuation of the work started in 1981 at Salt Lake City /l/ and Los Alamos implementing PSL 3.2 for Cray computers running CTSS, and at Mendota Heights for COS systems. The COS version of PSL 3.2 was upgraded to a complete cross compiling system and was the basis for implementation of PSL 3.4.