Chapter 2: UPF Subroutines and Functions

This guide describes the various subroutines, functions, and commands that allow you to customize the program for your specific purpose. The first portion of each subroutine or function (consisting of comment lines) is shown in most cases.

User subroutines that can be modified have the term USERDISTRIB in the first line of the subroutine. For example, the first line of the usercnprop subroutine looks like this:

*deck,usercnprop                     USERDISTRIB

User subroutines that do not have USERDISTRIB in the first line cannot be modified and must be used as they are.