Great Migrations. Software Translation Technologies
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Great Migrations helps teams preserve and enhance business-critical systems.
Our advanced software re-engineering tools and agile methodology can help you upgrade your FORTRAN systems to C.

Request a FORTRAN to C Consultation

The Promula FORTRAN to C Translator

First published in 1987, this tool is the best-of-breed FORTRAN to C translator around -- according to independent reviews.

This tool can be used to produce custom C translations that are both correct (functionally equivalent to the original FORTRAN) and C-readable (i.e., of high C-code quality, subject to the client's C programming standards or custom preferences).

Over the past thirty years, we have applied this tool in several hundred migration projects around the world and have helped our clients in the porting of their legacy applications (millions of lines of third-generation code) from mainframes and other proprietary systems to more contemporary, open platforms.

This tool is also a general-purpose, multi-dialect and portable FORTRAN compiler. It runs on multiple platforms and supports both the ANSI FORTRAN 66 and ANSI FORTRAN 77 standard dialects. It also supports a large number of common extensions such as those found in several commercial compilers, such as VAX FORTRAN, PDP FORTRAN, and PRIME FORTRAN. Some Fortran 90 extensions are also supported.

Validated by the GSA FORTRAN Compiler Validation Test Suite, the Promula FORTRAN compiler works by compiling FORTRAN source code to compilable C source code (from where it derives its portability). It requires a C compiler to produce executable code and is the ideal processor for hybrid FORTRAN/C applications.

Try it out for free!

We are passionate about helping clients preserve and modernize their software assets with software migration since 1982.

We offer powerful system re-engineering tools and methods to help you develop custom upgrade solutions.

We provide the products, services, and expertise to help clients meet the challenges of their software migration needs.

Our proven software analysis offerings enable customers to more accurately assess and plan ambitious upgrade efforts.

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