Is there an converter from fortran 90 downto fortran 77 ?
I have a fortran77 only compiler and want to run NAS Parallel Benchmark (NPB for short) on it. But NPB uses some features of F90, like do enddo, smth else. All features are rather simple.
Is there A way to translate NPB to F77 strict language?
Tags: fortran parallel convert programming-languages
I need tool to lower minimally
DO ... ENDDO
and
DO ... WHILE
to DO with number labels and to DO + IF
There are converters from FORTRAN 77 to Fortran 90, but I have never heard of one for the other direction. I expect that there is very little demand for such. DO ... END DO and DO ... WHILE were common extensions supported by FORTRAN 77 compilers, so these features in the source code may not be signs of using limited Fortran 90 but of using typical but non-strict FORTRAN 77. Why stick with a FORTRAN 77 compiler? Why not download gfortran or another modern compiler?