--- /dev/null
+options:
+
+a: enable assertions
+c: allow C-like strings
+d: allow longs
+i: set the size of sets
+n: no register messages
+s: only compile standard pascal
+t: tracing
+u, U: allow underscores in variables
+w: disable warnings
+A: extra array bound checks
+C: disinguish between upper- an lower-case
+L: no FIL and LIN instructions
+M: maximum identifier length
+R: no runtime checks
+V: object sizes and alignments
+
+Debugging options:
+
+l: run lexical analyzer only
+I: debugging info