ogram which handles the overall control. 
This C program (CONTROL in the following)
in turn calls modules written in Fortran-77, possibly 
Fortran-90 or Fortran-95, and C. The Fortran-77 modules come from MAD-8
and are adapted to the new structure.
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All I/O (except for debug or error messages) is performed by CONTROL. The
modules receive their input data via calls (Fortran), or take them from
structures (C); the module outputs are stored in tables or variables via
calls (Fortran) or directly in structure