Open AccessA PASCAL Environment Machine (P-code)
Author(s) -
Bent Bruun Kristensen,
Ole Lehrmann Madsen,
Bent Bæk Jensen
Publication year - 1974
Publication title -
daimi pb
Language(s) - English
Resource type - Journals
eISSN - 2245-9316
pISSN - 0105-8517
DOI - 10.7146/dpb.v3i28.6447
Subject(s) - pascal (unit) , computer science , programming language , object code , interpreter , code generation , code (set theory) , machine code , dead code , minicomputer , operating system , redundant code , set (abstract data type) , compiler , key (lock)
This paper describes the architecture and instruction set of a machine to support PASCAL. This so-called P-code machine is designed both to be emulated on microprogrammable computers, and to be an intermediate step in code generation for traditional computers. Furthermore, an interpreter on CDC 6400 and a microprogrammed version of P-code on a minicomputer system are described. A percise description of all P-code instructions and examples of PASCAL programs with generated P-code are shown in appendices.