Lisa Pascal: Units

It's not possible to create an intrinsic unit. Even though the manual gives
you a minimum of information, you can compile a regular unit. You don't have
to put it in a library to use it, as with the Apple II and Apple III. To
compile a regular unit, just include the following compiler command at the
beginning of your unit:

{$U-}
Unit Sample;
Interface
. . .
Implementation
. . .
end.

Include the object code file in your program's USES statement.
Published Date: Feb 18, 2012