avr-gfortran
program avr microcontroller using fortran77 syntax
...The recent version of compiler is 1.0.1-alpha.
For Windows version (32bit), click https://sourceforge.net/projects/avr-gfortran/files/avr-gfortran-1.0.1-alpha/avr_gfortran-1.0.1-x86win.zip/download
Linux version (32bit), click https://sourceforge.net/projects/avr-gfortran/files/avr-gfortran-1.0.1-alpha/avr_gfortran-1.0.1-32bit_linux.tar.xz/download
User guide, click https://sourceforge.net/projects/avr-gfortran/files/avr-gfortran-guide.pdf/download...