$shm_probe ncverilog

[Jason Zheng]

Anyone know how to use $shm_probe for ncverilog?
I tried this:

initial begin
$shm_open("waves.shm");
$shem_probe("AS");
end

After the simulation, I used signalscan to look at the waveforms, but i
could only see the module names, no signals. Any clue why that happened?

thanks