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A Fortran 90 program for converting fixed-format Fortran 77 code to Fortran 90 free-format. Other changes replace old Fortran constructs with more modern ones. The conversions made include: 1. Standard format (column 7-72) converted to free-format. 2. DO loops and IF blocks indented. 3. Most labels are removed from loops and replaced with END DO, CYCLE, EXIT, and DO-loop constructs where appropriate. 4. 3-way arithmetic IFs converted to IF .. THEN .. ELSE constructs. 5. TYPE and INTENT declarations inserted for all subroutine and function arguments. 6. Computed GOTOs converted to SELECT CASE constructs. 7. Embedded blanks are removed from numerical constants. They are illegal in free format.

A Fortran 90 program for converting fixed-format Fortran 77 code to Fortran 90 free-format. Other changes replace old Fortran constructs with more modern ones. The conversions made include: 1. Standard format (column 7-72) converted to free-format. 2. DO loops and IF blocks indented. 3. Most labels are removed from loops and replaced with END DO, CYCLE, EXIT, and DO-loop constructs where appropriate. 4. 3-way arithmetic IFs converted to IF .. THEN .. ELSE constructs. 5. TYPE and INTENT declarations inserted for all subroutine and function arguments. 6. Computed GOTOs converted to SELECT CASE constructs. 7. Embedded blanks are removed from numerical constants. They are illegal in free format.

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