just a course project in vhdl. (A microcontroler)
I used GTKViewer for unit testing.
but any ghw viewer can utilize the .ghw files.
Moreover, I use ghdl as the vhdl "compiler".
Still a newbie in vhdl, coding style is confused for me, especially in a case-insensitive language.
I tried to be as verbose as possible, to not confuse myself.