How do I add AHDL files to a project that is all VHDL now?

Hi,

Yes, Quartus still support the AHDL.

ether you can add by "Project->Add/Remove files In Project" or use the Tcl assignments " set_global_assignment -name AHDL_FILE <file name>.tdf" in Tcl Console.

Let me know if this has helped resolve the issue you are facing or if you need any further assistance.

Best Regards

Vikas Jathar

(This message was posted on behalf of Intel Corporation)