Simplified Pascal. June, 1975. A strict subset of Pascal, omits scalar types, subranges, sets, files, pointers, packed structures, 'with' and 'goto. Source for a complete Pascal-S compiler is in "Pascal-S: A Subset and Its Implementation", N. Wirth in Pascal - The Language and Its Implementation, by D.W. Barron, Wiley 1979.
ftp://csseq.cs.tamu.edu/mcguire/pascal-s .