RANDLC is a FORTRAN77 library which implements a version of the pseudorandom number generator used by the NAS Parallel Benchmarks.
The generator has the form
X(K+1) = A * X(K) mod 2^46where the suggested value of the multiplier A is 5^13 = 1220703125.
This scheme generates 2^44 numbers before repeating.
The web site for the NAS Parallel Benchmarks is http://www.nas.nasa.gov/Resources/Software/npb.html.
The computer code and data files described and made available on this web page are distributed under the GNU LGPL license.
RANDLC is available in a C version and a C++ version and a FORTRAN77 version and a FORTRAN90 version and a MATLAB version and a Python version.
ASA183, a FORTRAN77 library which implements the Wichman-Hill pseudorandom number generator.
NORMAL, a FORTRAN77 library which computes a sequence of pseudorandom normally distributed values.
UNIFORM, a FORTRAN77 library which computes elements of a pseudorandom sequence.
You can go up one level to the FORTRAN77 source codes.