spice.java

The ElectricTM VLSI Design System is an open-source Electronic Design Automation (EDA) system that c

//                        {
//                            if (ni.getProto().getName().equals("P-Poly-RPO-Resistor")) fun = PrimitiveNode.Function.RESPPOLY;
//                            if (ni.getProto().getName().equals("N-Poly-RPO-Resistor")) fun = PrimitiveNode.Function.RESNPOLY;
//                        }
//                        if (fun == PrimitiveNode.Function.WRESIST)
//                        {
//                            if (ni.getProto().getName().equals("P-Well-RPO-Resistor")) fun = PrimitiveNode.Function.RESPWELL;
//                            if (ni.getProto().getName().equals("N-Well-RPO-Resistor")) fun = PrimitiveNode.Function.RESNWELL;
//                        }
                        if (fun == PrimitiveNode.Function.RESPPOLY || fun == PrimitiveNode.Function.RESNPOLY ||
                        	fun == PrimitiveNode.Function.RESPWELL || fun == PrimitiveNode.Function.RESNWELL)
                        {
                            partName = "XR";
                            double width = ni.getLambdaBaseYSize();
                            double length = ni.getLambdaBaseXSize();
                            if (Simulation.isSpiceWriteTransSizeInLambda())
                            {
                                extra = " L="+length+" W="+width;
                            } else
                            {
                                extra = " L="+formatParam(length+"*LAMBDA", TextDescriptor.Unit.NONE, false)+
                                	" W="+formatParam(width+"*LAMBDA", TextDescriptor.Unit.NONE, false);
                            }
                            String prepend = "";
                            if (fun == PrimitiveNode.Function.RESPPOLY) prepend = "rppo1rpo"; else
                            	if (fun == PrimitiveNode.Function.RESNPOLY) prepend = "rnpo1rpo"; else
                                	if (fun == PrimitiveNode.Function.RESPWELL) prepend = "rpwod "; else
                                    	if (fun == PrimitiveNode.Function.RESNWELL) prepend = "rnwod ";
                            if (layoutTechnology == Technology.getCMOS90Technology() ||
                                (cell.getView() == View.LAYOUT && cell.getTechnology() == Technology.getCMOS90Technology()))
                            {
                                if (fun == PrimitiveNode.Function.RESPPOLY) prepend = "GND rpporpo"; else
                                	if (fun == PrimitiveNode.Function.RESNPOLY) prepend = "GND rnporpo";
                            }
                            extra = prepend + extra;
                        }
                    }
					writeTwoPort(ni, partName, extra, cni, netList, context, segmentedNets);
				} else if (fun.isCapacitor())
				{
					Variable capacVar = ni.getVar(Schematics.SCHEM_CAPACITANCE);
					String extra = "";
					if (capacVar != null)
					{
                        if (USE_JAVA_CODE) {
                            extra = evalParam(context, no, capacVar, forceEval);
                        } else {
                            if (capacVar.getCode() == CodeExpression.Code.SPICE) {
                                if (!useCDL && Simulation.isSpiceUseCellParameters()) {
                                    Object obj = context.evalSpice(capacVar, false);
                                    extra = String.valueOf(obj);
                                } else {
                                    extra = capacVar.describe(context, ni);
                                }
                            }
                            if (extra == "")
                                extra = capacVar.describe(context, ni);
                            if (TextUtils.isANumber(extra))
                            {
                                double pureValue = TextUtils.atof(extra);
                                extra = TextUtils.formatDoublePostFix(pureValue); // displayedUnits(pureValue, TextDescriptor.Unit.CAPACITANCE, TextUtils.UnitScale.NONE);
                            } else
                                extra = formatParam(extra, capacVar.getUnit(), false);
                        }
					}
					writeTwoPort(ni, "C", extra, cni, netList, context, segmentedNets);
				} else if (fun == PrimitiveNode.Function.INDUCT)
				{
					Variable inductVar = ni.getVar(Schematics.SCHEM_INDUCTANCE);
					String extra = "";
					if (inductVar != null)
					{
                        if (USE_JAVA_CODE) {
                            extra = evalParam(context, no, inductVar, forceEval);
                        } else {
                            if (inductVar.getCode() == CodeExpression.Code.SPICE) {
                                if (!useCDL && Simulation.isSpiceUseCellParameters()) {
                                    Object obj = context.evalSpice(inductVar, false);
                                    extra = String.valueOf(obj);
                                } else {
                                    extra = inductVar.describe(context, ni);
                                }
                            }
                            if (extra == "")
                                extra = inductVar.describe(context, ni);
                            if (TextUtils.isANumber(extra))
                            {
                                double pureValue = TextUtils.atof(extra);
                                extra = TextUtils.formatDoublePostFix(pureValue); // displayedUnits(pureValue, TextDescriptor.Unit.INDUCTANCE, TextUtils.UnitScale.NONE);
                            } else
                                extra = formatParam(extra, inductVar.getUnit(), false);
                        }
					}
					writeTwoPort(ni, "L", extra, cni, netList, context, segmentedNets);
				} else if (fun == PrimitiveNode.Function.DIODE || fun == PrimitiveNode.Function.DIODEZ)
				{
					Variable diodeVar = ni.getVar(Schematics.SCHEM_DIODE);
					String extra = "";
					if (diodeVar != null)
						extra = diodeVar.describe(context, ni);
					if (extra.length() == 0) extra = "DIODE";
					writeTwoPort(ni, "D", extra, cni, netList, context, segmentedNets);
				}
				continue;
			}

			// the default is to handle everything else as a transistor
			if (((PrimitiveNode)niProto).getGroupFunction() != PrimitiveNode.Function.TRANS)
				continue;

			Network gateNet = netList.getNetwork(ni.getTransistorGatePort());
			CellSignal gateCs = cni.getCellSignal(gateNet);
			Network sourceNet = netList.getNetwork(ni.getTransistorSourcePort());
			CellSignal sourceCs = cni.getCellSignal(sourceNet);
			Network drainNet = netList.getNetwork(ni.getTransistorDrainPort());
			CellSignal drainCs = cni.getCellSignal(drainNet);
			CellSignal biasCs = null;
			PortInst biasPort = ni.getTransistorBiasPort();
			if (biasPort != null)
			{
				biasCs = cni.getCellSignal(netList.getNetwork(biasPort));
			}

			// make sure transistor is connected to nets
			if (gateCs == null || sourceCs == null || drainCs == null)
			{
				String message = "WARNING: " + ni + " not fully connected in " + cell;
				dumpErrorMessage(message);
			}

			// get model information
			String modelName = null;
            String defaultBulkName = null;
			Variable modelVar = ni.getVar(SPICE_MODEL_KEY);
			if (modelVar != null) modelName = modelVar.getObject().toString();

            // special case for ST090 technology which has stupid non-standard transistor
            // models which are subcircuits
            boolean st090laytrans = false;
            boolean tsmc090laytrans = false;
            if (cell.getView() == View.LAYOUT && layoutTechnology == Technology.getCMOS90Technology()) {
                if (layoutTechnology.getSelectedFoundry().getType() == Foundry.Type.TSMC)
                    tsmc090laytrans = true;
                else if (layoutTechnology.getSelectedFoundry().getType() == Foundry.Type.ST)
                    st090laytrans = true;
            }

			String modelChar = "";
			if (fun == PrimitiveNode.Function.TRANSREF)					// self-referential transistor
			{
				modelChar = "X";
				biasCs = cni.getCellSignal(groundNet);
				modelName = niProto.getName();
			} else if (fun == PrimitiveNode.Function.TRANMOS)			// NMOS (Enhancement) transistor
			{
				modelChar = "M";
				biasCs = cni.getCellSignal(groundNet);
                defaultBulkName = "gnd";
				if (modelName == null) modelName = "N";
                if (st090laytrans) {
                    modelChar = "XM";
                    modelName = "nsvt";
                }
                if (tsmc090laytrans) {
                    modelName = "nch";
                }
            } else if (fun == PrimitiveNode.Function.TRA4NMOS)			// NMOS (Complementary) 4-port transistor
			{
				modelChar = "M";
				if (modelName == null) modelName = "N";
                if (st090laytrans) {
                    modelChar = "XM";
                    modelName = "nsvt";
                }
                if (tsmc090laytrans) {
                    modelName = "nch";
                }
			} else if (fun == PrimitiveNode.Function.TRADMOS)			// DMOS (Depletion) transistor
			{
				modelChar = "M";
				biasCs = cni.getCellSignal(groundNet);
				if (modelName == null) modelName = "D";
			} else if (fun == PrimitiveNode.Function.TRA4DMOS)			// DMOS (Depletion) 4-port transistor
			{
				modelChar = "M";
				if (modelName == null) modelName = "D";
			} else if (fun == PrimitiveNode.Function.TRAPMOS)			// PMOS (Complementary) transistor
			{
				modelChar = "M";
				biasCs = cni.getCellSignal(powerNet);
                defaultBulkName = "vdd";
				if (modelName == null) modelName = "P";
                if (st090laytrans) {
                    modelChar = "XM";
                    modelName = "psvt";
                }
                if (tsmc090laytrans) {
                    modelName = "pch";
                }
            } else if (fun == PrimitiveNode.Function.TRA4PMOS)			// PMOS (Complementary) 4-port transistor
			{
				modelChar = "M";
				if (modelName == null) modelName = "P";
                if (st090laytrans) {
                    modelChar = "XM";
                    modelName = "psvt";
                }
                if (tsmc090laytrans) {
                    modelName = "pch";
                }
            } else if (fun == PrimitiveNode.Function.TRANPN)			// NPN (Junction) transistor
			{
				modelChar = "Q";
				if (modelName == null) modelName = "NBJT";
			} else if (fun == PrimitiveNode.Function.TRA4NPN)			// NPN (Junction) 4-port transistor
			{
				modelChar = "Q";
				if (modelName == null) modelName = "NBJT";
			} else if (fun == PrimitiveNode.Function.TRAPNP)			// PNP (Junction) transistor
			{
				modelChar = "Q";
				if (modelName == null) modelName = "PBJT";
			} else if (fun == PrimitiveNode.Function.TRA4PNP)			// PNP (Junction) 4-port transistor
			{
				modelChar = "Q";
				if (modelName == null) modelName = "PBJT";
			} else if (fun == PrimitiveNode.Function.TRANJFET)			// NJFET (N Channel) transistor
			{
				modelChar = "J";
				biasCs = null;
				if (modelName == null) modelName = "NJFET";
			} else if (fun == PrimitiveNode.Function.TRA4NJFET)			// NJFET (N Channel) 4-port transistor
			{
				modelChar = "J";
				if (modelName == null) modelName = "NJFET";
			} else if (fun == PrimitiveNode.Function.TRAPJFET)			// PJFET (P Channel) transistor
			{
				modelChar = "J";
				biasCs = null;
				if (modelName == null) modelName = "PJFET";
			} else if (fun == PrimitiveNode.Function.TRA4PJFET)			// PJFET (P Channel) 4-port transistor
			{
				modelChar = "J";
				if (modelName == null) modelName = "PJFET";
			} else if (fun == PrimitiveNode.Function.TRADMES ||			// DMES (Depletion) transistor
				fun == PrimitiveNode.Function.TRA4DMES)					// DMES (Depletion) 4-port transistor
			{
				modelChar = "Z";
				biasCs = null;
				modelName = "DMES";
			} else if (fun == PrimitiveNode.Function.TRAEMES ||			// EMES (Enhancement) transistor
				fun == PrimitiveNode.Function.TRA4EMES)					// EMES (Enhancement) 4-port transistor
			{
				modelChar = "Z";
				biasCs = null;
				modelName = "EMES";
			} else if (fun == PrimitiveNode.Function.TRANS)				// special transistor
			{
				modelChar = "Q";
			}
			if (ni.getName() != null) modelChar += getSafeNetName(ni.getName(), false);
			StringBuffer infstr = new StringBuffer();
            String drainName = drainCs.getName();
            String gateName = gateCs.getName();
            String sourceName = sourceCs.getName();
            if (segmentedNets != null) {
                drainName = segmentedNets.getNetName(ni.getTransistorDrainPort());
                gateName = segmentedNets.getNetName(ni.getTransistorGatePort());
                sourceName = segmentedNets.getNetName(ni.getTransistorSourcePort());
            }
			infstr.append(modelChar + " " + drainName + " " + gateName + " " + sourceName);
			if (biasCs != null) {
                String biasName = biasCs.getName();
                if (segmentedNets != null && ni.getTransistorBiasPort() != null)
                    biasName = segmentedNets.getNetName(ni.getTransistorBiasPort());
                infstr.append(" " + biasName);
            } else {
                if (cell.getView() == View.LAYOUT && defaultBulkName != null)
                    infstr.append(" " + defaultBulkName);
            }