altera_avalon_dc_fifo only availabe in Verilog

Hi,

I have a design here that I want to simulate. I only have a VHDL simulation license and now I found out there are three Verilog source files included that were supplied by Altera. I want to replace these files with VHDL counterparts (at least for the simulation process, for synthesis I could keep the old files). The files names are:

altera_avalon_dc_fifo.v

altera_synchronizer.v

altera_synchronizer_bundle.v

they are part of the sopc_builder_ip. Did I miss installing the VHDL version, too? If there is no VHDL version, what is the recommended way to get the design simulated without having to pay many, many euros for a mixed simulation license?

Best regards,

flintstone