Hewlett-Packard


          Read Before Installing or Using HP Fortran Version 8.0 for
          OpenVMS Industry Standard 64 Systems

          This letter explains the Version 8.0 release of HP Fortran for
          OpenVMS I64 systems.

          Installation Information

          For installation information, see the HP Fortran for OpenVMS I64
          Systems Installation Guide in your kit.

          Release Notes

          The HP Fortran release notes contain a summary of new fea-
          tures, known problems, restrictions, incompatibilities, and
          installation-related instructions.

          To read the release notes before installing HP Fortran, follow
          the instructions in the HP Fortran for OpenVMS I64 Systems
          Installation Guide.

          F77-Only Compiler Not Part of HP Fortran

          The products formerly called Compaq Fortran 77 and DIGITAL
          Fortran 77 are not part of HP Fortran for OpenVMS I64 systems.
          This means that the /OLD_F77 command-line qualifier is not valid
          on OpenVMS I64 systems.

          If you are planning on converting from Compaq Fortran 77 to
          HP Fortran 90 on OpenVMS I64 systems, we strongly recommend
          that you perform the conversion in two stages: first converting
          from Compaq Fortran 77 to HP Fortran 90 on OpenVMS Alpha, and
          only then converting from HP Fortran 90 on OpenVMS Alpha to HP
          Fortran 90 on OpenVMS I64. This will help isolate the cause of
          any potential migration issues, should they arise.

          See Appendix B in the HP Fortran for OpenVMS User Manual for
          more information.

          Differences Between HP Fortran on OpenVMS I64 and OpenVMS Alpha
          Systems

          See Appendix A in the HP Fortran for OpenVMS User Manual.