How to replace #IFDEFs with TVF?

Document created by burr_shaw on Aug 14, 2012
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By using the basic TCL flow control and variable syntax all #IFDEFs can be eliminated.

In the example below please note the use of \[ in the device definition with TVF. This keeps the TCL portion of TVF from interpreting that set of [] as a standard TCl [] directive.

 

Example:

------ SVRF --------
#DEFINE THIS_FLOW "mos"

#IFDEF THIS_FLOW "mos"
device mn ngate ipoly nsd nsd s_pwell [0] // nmos transistors
#ELSE
device mn ngate ipoly nsd nsd s_pwell [2] // nmos transistors
#ENDIF

 

------TVF ----------------------
set THIS_FLOW "mos"

if { $THIS_FLOW == "mos" } {
set FLOW_VAR 0
} else {
set FLOW_VAR 2
}

device mn ngate ipoly nsd nsd s_pwell \[$FLOW_VAR]

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