The differences between value and
reference parameters.
ANYVAR and READONLY reference parameters (which
are HP Pascal system programming extensions).
Conformant array parameters.
Routines (procedures and functions) as parameters.
Congruent parameter lists.
Hidden parameters (which affect debugging and interfacing
with external non-Pascal routines).
NOTE: This chapter is intended for system software developers
who already understand the systems for which they are programming.
Its purpose is to explain the HP Pascal features of which they must
be aware. It does not attempt to teach systems programming.
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