HP 3000 Manuals

Binary Files with HP 3000 Floating-Point Data [ HP FORTRAN 77/iX Migration Guide ] MPE/iX 5.0 Documentation

HP FORTRAN 77/iX Migration Guide

Binary Files with HP 3000 Floating-Point Data 

   *   If your program reads or writes HP 3000 floating-point data in
       binary form, you must specify HP3000_16 REALS in every program
       unit.

The performance of IEEE floating-point is usually at least 100 times
faster than HP 3000 floating-point.  If your application uses
floating-point extensively, do the following:

   *   Convert such data files to native mode, as described in Chapter
       10.

   *   Convert compatibility mode databases to native mode databases.

   *   Modify each program to take advantage of MPE/iX alignment
       conventions, as described in the first section of this chapter.

   *   Remove the HP3000_16 ON option if used.

MPE/iX 5.0 Documentation