ADE Current Measurements

Hi,

I'm relatively new to setting up Cadence CDF parameters and mapping
them to Spectre model files.  Things seem to be working well, except
for one problem: I can't get IDC() to work.

In my models, nmos and pmos devices are implemented as subckts:

--snip--

subckt nfet (d g s b)
parameters w=0.12e-6 l=0.1e-6 nfing=1 mult=1 ...
....
m1 (d g s b) nmos w=w/nfing l=l ad=ad as=as ps=ps pd=pd m=mult*nfing
....
model nmos bsim4 type=n
+version = 4.0          binunit = 1            paramchk= 1
mobmod  =

etc etc.

--snip--

I understand that I need to be putting something like:

nil D ":1" G ":2" S ":3" B ":4"

into the termMapping field in the Spectre CDF information, but it's
not really clear to me what exactly needs to be done to properly map
the terminal currents, so that ADE can read them using IDC()

I'd really appreciate if someone could point me in the right direction

Cheers,
Tony