18x18 multipliers


#1

Hi,

For the upcoming EX board, how can we use the 18x18 multipliers? Is this something that can be inferred by yosys or Project Trellis? I believe I’ve seen them referred to in Uwe Meyer-Baese’s book (on DSP stuff) but I’ve never tried using them before.

Thanks!


#2

Yes, if you are using fairly recent Yosys then a “*” in Verilog of sufficient width will map to these primitives.


#3

Great! That is easier than I had hoped.