I wanted to have a try at Verilog for CPU design. As I am a noob in this area, I decided to try to compile a 6502 core [0] on CPLDs. The first problem I had was that it seems there are very few free Verilog IDEs on Linux. I ended up using the one from Intel. So now I had to use Intel's CPLDs and anyway, the CPLDs used by Arlet Ottens do not exist anymore. Then while this 6502 core is not that old, it doesn't compile on the Intel IDE, despite several people having used the core years ago.
So is there a smooth way to edit 6 years old Verilog files on Linux without being linked to some manufacturer?