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diff --git a/ext/dsent/model/std_cells/INV.cc b/ext/dsent/model/std_cells/INV.cc
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+#include "model/std_cells/INV.h"
+
+#include <cmath>
+
+#include "model/PortInfo.h"
+#include "model/TransitionInfo.h"
+#include "model/EventInfo.h"
+#include "model/std_cells/CellMacros.h"
+#include "model/std_cells/StdCellLib.h"
+#include "model/timing_graph/ElectricalNet.h"
+#include "model/timing_graph/ElectricalDriver.h"
+#include "model/timing_graph/ElectricalLoad.h"
+#include "model/timing_graph/ElectricalDelay.h"
+
+namespace DSENT
+{
+ using std::ceil;
+ using std::max;
+
+ INV::INV(const String& instance_name_, const TechModel* tech_model_)
+ : StdCell(instance_name_, tech_model_)
+ {
+ initProperties();
+ }
+
+ INV::~INV()
+ {}
+
+ void INV::initProperties()
+ {
+ return;
+ }
+
+ void INV::constructModel()
+ {
+ // All constructModel should do is create Area/NDDPower/Energy Results as
+ // well as instantiate any sub-instances using only the hard parameters
+
+ // Build Electrical Connectivity
+ createInputPort("A");
+ createOutputPort("Y");
+
+ createLoad("A_Cap");
+ createDelay("A_to_Y_delay");
+ createDriver("Y_Ron", true);
+
+ ElectricalLoad* a_cap = getLoad("A_Cap");
+ ElectricalDelay* a_to_y_delay = getDelay("A_to_Y_delay");
+ ElectricalDriver* y_ron = getDriver("Y_Ron");
+
+ getNet("A")->addDownstreamNode(a_cap);
+ a_cap->addDownstreamNode(a_to_y_delay);
+ a_to_y_delay->addDownstreamNode(y_ron);
+ y_ron->addDownstreamNode(getNet("Y"));
+
+ // Create Area result
+ // Create NDD Power result
+ createElectricalAtomicResults();
+ // Create INV Event Energy Result
+ createElectricalEventAtomicResult("INV");
+
+ getEventInfo("Idle")->setStaticTransitionInfos();
+
+ return;
+ }
+
+ void INV::updateModel()
+ {
+ // All updateModel should do is calculate numbers for the Area/NDDPower/Energy
+ // Results as anything else that needs to be done using either soft or hard parameters
+
+ // Get parameters
+ double drive_strength = getDrivingStrength();
+ Map<double>* cache = getTechModel()->getStdCellLib()->getStdCellCache();
+
+ // Standard cell cache string
+ String cell_name = "INV_X" + (String) drive_strength;
+
+ // Get timing parameters
+ getLoad("A_Cap")->setLoadCap(cache->get(cell_name + "->Cap->A"));
+ getDriver("Y_Ron")->setOutputRes(cache->get(cell_name + "->DriveRes->Y"));
+ getDelay("A_to_Y_delay")->setDelay(cache->get(cell_name + "->Delay->A_to_Y"));
+
+ // Set the cell area
+ getAreaResult("Active")->setValue(cache->get(cell_name + "->Area->Active"));
+ getAreaResult("Metal1Wire")->setValue(cache->get(cell_name + "->Area->Metal1Wire"));
+
+ return;
+ }
+
+ void INV::evaluateModel()
+ {
+ return;
+ }
+
+ void INV::useModel()
+ {
+ // Get parameters
+ double drive_strength = getDrivingStrength();
+ Map<double>* cache = getTechModel()->getStdCellLib()->getStdCellCache();
+
+ // Standard cell cache string
+ String cell_name = "INV_X" + (String) drive_strength;
+
+ // Propagate the transition info and get the 0->1 transtion count
+ propagateTransitionInfo();
+ double P_A = getInputPort("A")->getTransitionInfo().getProbability1();
+ double Y_num_trans_01 = getOutputPort("Y")->getTransitionInfo().getNumberTransitions01();
+
+ // Calculate leakage
+ double leakage = 0;
+ leakage += cache->get(cell_name + "->Leakage->!A") * (1 - P_A);
+ leakage += cache->get(cell_name + "->Leakage->A") * P_A;
+ getNddPowerResult("Leakage")->setValue(leakage);
+
+ // Get VDD
+ double vdd = getTechModel()->get("Vdd");
+
+ // Get capacitances
+ //double a_cap = cache->get(cell_name + "->Cap->A");
+ double y_cap = cache->get(cell_name + "->Cap->Y");
+ double y_load_cap = getNet("Y")->getTotalDownstreamCap();
+
+ // Calculate INV Event energy
+ double energy_per_trans_01 = (y_cap + y_load_cap) * vdd * vdd;
+ getEventResult("INV")->setValue(energy_per_trans_01 * Y_num_trans_01);
+ return;
+ }
+
+ void INV::propagateTransitionInfo()
+ {
+ // Get input transition info
+ const TransitionInfo& trans_A = getInputPort("A")->getTransitionInfo();
+
+ // Set output transition info
+ double Y_num_trans_00 = trans_A.getNumberTransitions11();
+ double Y_num_trans_01 = trans_A.getNumberTransitions01();
+ double Y_num_trans_11 = trans_A.getNumberTransitions00();
+
+ TransitionInfo trans_Y(Y_num_trans_00, Y_num_trans_01, Y_num_trans_11);
+ getOutputPort("Y")->setTransitionInfo(trans_Y);
+ return;
+ }
+
+ // Creates the standard cell, characterizes and abstracts away the details
+ void INV::cacheStdCell(StdCellLib* cell_lib_, double drive_strength_)
+ {
+ // Standard cell cache string
+ String cell_name = "INV_X" + (String) drive_strength_;
+
+ Log::printLine("=== " + cell_name + " ===");
+
+ // Get parameters
+ double gate_pitch = cell_lib_->getTechModel()->get("Gate->PitchContacted");
+ Map<double>* cache = cell_lib_->getStdCellCache();
+
+ // Now actually build the full standard cell model
+ // Create the two input ports
+ createInputPort("A");
+ createOutputPort("Y");
+
+ // Adds macros
+ CellMacros::addInverter(this, "INV", true, true, "A", "Y");
+ CellMacros::updateInverter(this, "INV", drive_strength_);
+
+ // Cache area result
+ double area = gate_pitch * getTotalHeight() * (1 + getGenProperties()->get("INV_GatePitches").toDouble());
+ cache->set(cell_name + "->Area->Active", area);
+ cache->set(cell_name + "->Area->Metal1Wire", area);
+ Log::printLine(cell_name + "->Area->Active=" + (String) area);
+ Log::printLine(cell_name + "->Area->Metal1Wire=" + (String) area);
+
+ // --------------------------------------------------------------------
+ // Leakage Model Calculation
+ // --------------------------------------------------------------------
+ double leakage_a0 = getGenProperties()->get("INV_LeakagePower_0").toDouble();
+ double leakage_a1 = getGenProperties()->get("INV_LeakagePower_1").toDouble();
+ cache->set(cell_name + "->Leakage->!A", leakage_a0);
+ cache->set(cell_name + "->Leakage->A", leakage_a1);
+ Log::printLine(cell_name + "->Leakage->!A=" + (String) leakage_a0);
+ Log::printLine(cell_name + "->Leakage->A=" + (String) leakage_a1);
+ // --------------------------------------------------------------------
+
+ /*
+ // Cache event energy results
+ double event_a_flip = getGenProperties()->get("INV_A_Flip").toDouble() + getGenProperties()->get("INV_ZN_Flip").toDouble();
+ cache->set(cell_name + "->Event_A_Flip", event_a_flip);
+ Log::printLine(cell_name + "->Event_A_Flip=" + (String) event_a_flip);
+ */
+
+ // --------------------------------------------------------------------
+ // Get Node Capacitances
+ // --------------------------------------------------------------------
+ double a_cap = getNet("A")->getTotalDownstreamCap();
+ double y_cap = getNet("Y")->getTotalDownstreamCap();
+
+ cache->set(cell_name + "->Cap->A", a_cap);
+ cache->set(cell_name + "->Cap->Y", y_cap);
+ Log::printLine(cell_name + "->Cap->A=" + (String) a_cap);
+ Log::printLine(cell_name + "->Cap->Y=" + (String) y_cap);
+ // --------------------------------------------------------------------
+
+ // --------------------------------------------------------------------
+ // Build Internal Delay Model
+ // --------------------------------------------------------------------
+ double y_ron = getDriver("INV_RonZN")->getOutputRes();
+ double a_to_y_delay = getDriver("INV_RonZN")->calculateDelay();
+ cache->set(cell_name + "->DriveRes->Y", y_ron);
+ cache->set(cell_name + "->Delay->A_to_Y", a_to_y_delay);
+ Log::printLine(cell_name + "->DriveRes->Y=" + (String) y_ron);
+ Log::printLine(cell_name + "->Delay->A_to_Y=" + (String) a_to_y_delay);
+ // --------------------------------------------------------------------
+
+ return;
+
+ }
+
+} // namespace DSENT
+
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