HP Fortran Programmer's Guide (B3908-90031; September 2011)

Chapter 1 1
1 An overview of HP Fortran
When you use the f90 command to compile a Fortran program, the command invokes a number of
components—and not just the compiler—to create the executable. By default, f90 invokes different
components to parse the source files for syntax errors, produce an intermediate code, optimize the
intermediate code, produce object code, search a set of library files for any additional object code that may