Prospero FORTRAN 77

From EDM2
Jump to: navigation, search

A FORTRAN-77 compatible development environment for the Sinclair QL, OS/2 v1.x, and DOS, that included a compiler, linker, librarian, source level debugger and an IDE.


The package sold from 1987 to the late 90's by Prospero Software Ltd., and was supported until 2003. The PC version of the toolchain was sold in two different versions, "Prospero Fortran Version iio" offered both DOS and OS/2 compatibility while "Prospero Fortran Version iid" only worked with DOS. In addition to the FORTRAN-77 standard the Prospero compiler supports some extensions and brings back a couple of features from FORTRAN-66 that were eliminated in later versions.

Note that the package was originally called Pro-Fortran 77.


  • Last known version: 2.1

Optional libraries

  • The Prospero DOS Extender Kit v2.1 - Library that allowed the compiler to work with popular DOS extenders or DPMI. (Also Works with Prospero Pascal v5.2
  • Prospero Fortran Windows Library - A linker and a library that allows users of Prospero Fortran to create 16 bit Microsoft Windows applications.