There is also a version for Windows. The ZIP file contains:
spins.exe (spins executable for windows)
libgcc_s_seh-1.dll (required gcc library)
libquadmath-0.dll (required gcc library)
libwinpthread-1.dll (required gcc library)
SPINS.pdf (description of commands recognised by spins)
test.in (test input file)
test.out (test output file)
spins.f (spins fortran source)
matout.f (additional fortran code)
from_blas.f (additional fortran code)
from_linpack.f (additional fortran code)
To test, unzip all files in the same directory, run
spins < test.in > test2.out
and then compare test2.out with test.out