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-rw-r--r--Examples/NGHDL_Examples/Cmosinverter/Cmosinverter-cache.lib75
-rw-r--r--Examples/NGHDL_Examples/Cmosinverter/Cmosinverter.cir26
-rw-r--r--Examples/NGHDL_Examples/Cmosinverter/Cmosinverter.cir.out45
-rw-r--r--Examples/NGHDL_Examples/Cmosinverter/Cmosinverter.pro74
-rw-r--r--Examples/NGHDL_Examples/Cmosinverter/Cmosinverter.proj1
-rw-r--r--Examples/NGHDL_Examples/Cmosinverter/Cmosinverter.sch303
-rw-r--r--Examples/NGHDL_Examples/Cmosinverter/Cmosinverter_Previous_Values.xml1
-rw-r--r--Examples/NGHDL_Examples/Cmosinverter/INVCMOS-cache.lib146
-rw-r--r--Examples/NGHDL_Examples/Cmosinverter/INVCMOS.cir15
-rw-r--r--Examples/NGHDL_Examples/Cmosinverter/INVCMOS.cir.out18
-rw-r--r--Examples/NGHDL_Examples/Cmosinverter/INVCMOS.pro73
-rw-r--r--Examples/NGHDL_Examples/Cmosinverter/INVCMOS.sch189
-rw-r--r--Examples/NGHDL_Examples/Cmosinverter/INVCMOS.sub12
-rw-r--r--Examples/NGHDL_Examples/Cmosinverter/INVCMOS_Previous_Values.xml1
-rw-r--r--Examples/NGHDL_Examples/Cmosinverter/NMOS-180nm.lib13
-rw-r--r--Examples/NGHDL_Examples/Cmosinverter/PMOS-180nm.lib11
-rw-r--r--Examples/NGHDL_Examples/Cmosinverter/analysis1
-rw-r--r--Examples/NGHDL_Examples/Cmosinverter/plot_data_i.tx60
-rw-r--r--Examples/NGHDL_Examples/PWM_Decremental/NPN.lib4
-rw-r--r--Examples/NGHDL_Examples/PWM_Decremental/PNP.lib4
-rw-r--r--Examples/NGHDL_Examples/PWM_Decremental/PWM_Decremental-cache.lib169
-rw-r--r--Examples/NGHDL_Examples/PWM_Decremental/PWM_Decremental.cir26
-rw-r--r--Examples/NGHDL_Examples/PWM_Decremental/PWM_Decremental.cir.out45
-rw-r--r--Examples/NGHDL_Examples/PWM_Decremental/PWM_Decremental.pro73
-rw-r--r--Examples/NGHDL_Examples/PWM_Decremental/PWM_Decremental.proj1
-rw-r--r--Examples/NGHDL_Examples/PWM_Decremental/PWM_Decremental.sch435
-rw-r--r--Examples/NGHDL_Examples/PWM_Decremental/PWM_Decremental_Previous_Values.xml1
-rw-r--r--Examples/NGHDL_Examples/PWM_Decremental/analysis1
-rw-r--r--Examples/NGHDL_Examples/PWM_Decremental/lm_741-cache.lib119
-rw-r--r--Examples/NGHDL_Examples/PWM_Decremental/lm_741.cir43
-rw-r--r--Examples/NGHDL_Examples/PWM_Decremental/lm_741.cir.out46
-rw-r--r--Examples/NGHDL_Examples/PWM_Decremental/lm_741.pro45
-rw-r--r--Examples/NGHDL_Examples/PWM_Decremental/lm_741.sch697
-rw-r--r--Examples/NGHDL_Examples/PWM_Decremental/lm_741.sub40
-rw-r--r--Examples/NGHDL_Examples/PWM_Decremental/lm_741_Previous_Values.xml1
-rw-r--r--Examples/NGHDL_Examples/PWM_Decremental/npn_1.lib29
-rw-r--r--Examples/NGHDL_Examples/PWM_Decremental/pnp_1.lib29
-rw-r--r--Examples/NGHDL_Examples/PWM_Incremental/NPN.lib4
-rw-r--r--Examples/NGHDL_Examples/PWM_Incremental/PNP.lib4
-rw-r--r--Examples/NGHDL_Examples/PWM_Incremental/PWM_Incremental-cache.lib169
-rw-r--r--Examples/NGHDL_Examples/PWM_Incremental/PWM_Incremental.cir26
-rw-r--r--Examples/NGHDL_Examples/PWM_Incremental/PWM_Incremental.cir.out45
-rw-r--r--Examples/NGHDL_Examples/PWM_Incremental/PWM_Incremental.pro73
-rw-r--r--Examples/NGHDL_Examples/PWM_Incremental/PWM_Incremental.proj1
-rw-r--r--Examples/NGHDL_Examples/PWM_Incremental/PWM_Incremental.sch435
-rw-r--r--Examples/NGHDL_Examples/PWM_Incremental/PWM_Incremental_Previous_Values.xml1
-rw-r--r--Examples/NGHDL_Examples/PWM_Incremental/analysis1
-rw-r--r--Examples/NGHDL_Examples/PWM_Incremental/lm_741-cache.lib119
-rw-r--r--Examples/NGHDL_Examples/PWM_Incremental/lm_741.cir43
-rw-r--r--Examples/NGHDL_Examples/PWM_Incremental/lm_741.cir.out46
-rw-r--r--Examples/NGHDL_Examples/PWM_Incremental/lm_741.pro45
-rw-r--r--Examples/NGHDL_Examples/PWM_Incremental/lm_741.sch697
-rw-r--r--Examples/NGHDL_Examples/PWM_Incremental/lm_741.sub40
-rw-r--r--Examples/NGHDL_Examples/PWM_Incremental/lm_741_Previous_Values.xml1
-rw-r--r--Examples/NGHDL_Examples/PWM_Incremental/npn_1.lib29
-rw-r--r--Examples/NGHDL_Examples/PWM_Incremental/pnp_1.lib29
-rw-r--r--Examples/NGHDL_Examples/README.md13
57 files changed, 4693 insertions, 0 deletions
diff --git a/Examples/NGHDL_Examples/Cmosinverter/Cmosinverter-cache.lib b/Examples/NGHDL_Examples/Cmosinverter/Cmosinverter-cache.lib
new file mode 100644
index 00000000..c6733b19
--- /dev/null
+++ b/Examples/NGHDL_Examples/Cmosinverter/Cmosinverter-cache.lib
@@ -0,0 +1,75 @@
+EESchema-LIBRARY Version 2.3
+#encoding utf-8
+#
+# INVCMOS
+#
+DEF INVCMOS X 0 40 Y Y 1 F N
+F0 "X" 0 0 60 H V C CNN
+F1 "INVCMOS" -450 150 60 H V C CNN
+F2 "" 0 0 60 H I C CNN
+F3 "" 0 0 60 H I C CNN
+DRAW
+C 400 0 112 0 1 0 N
+S -250 200 -250 -200 0 1 0 N
+P 3 0 1 0 -250 200 300 0 -250 -200 N
+X in 1 -450 0 200 R 50 50 1 1 P
+X out 2 700 0 200 L 50 50 1 1 P
+ENDDRAW
+ENDDEF
+#
+# adc_bridge_1
+#
+DEF adc_bridge_1 U 0 40 Y Y 1 F N
+F0 "U" 0 0 60 H V C CNN
+F1 "adc_bridge_1" 0 150 60 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+S -400 200 350 -50 0 1 0 N
+X IN1 1 -600 50 200 R 50 50 1 1 I
+X OUT1 2 550 50 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# dac_bridge_1
+#
+DEF dac_bridge_1 U 0 40 Y Y 1 F N
+F0 "U" 0 0 60 H V C CNN
+F1 "dac_bridge_1" 0 150 60 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+S -400 200 350 -50 0 1 0 N
+X IN1 1 -600 50 200 R 50 50 1 1 I
+X OUT1 2 550 50 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# inverter
+#
+DEF inverter U 0 40 Y Y 1 F N
+F0 "U" 2850 1800 60 H V C CNN
+F1 "inverter" 2850 2000 60 H V C CNN
+F2 "" 2850 1950 60 H V C CNN
+F3 "" 2850 1950 60 H V C CNN
+DRAW
+S 2550 2100 3150 1700 0 1 0 N
+X in1 1 2350 1900 200 R 50 50 1 1 I
+X out1 2 3350 1900 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# plot_v1
+#
+DEF plot_v1 U 0 40 Y Y 1 F N
+F0 "U" 0 500 60 H V C CNN
+F1 "plot_v1" 200 350 60 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+C 0 500 100 0 1 0 N
+X ~ ~ 0 200 200 U 50 50 1 1 I
+ENDDRAW
+ENDDEF
+#
+#End Library
diff --git a/Examples/NGHDL_Examples/Cmosinverter/Cmosinverter.cir b/Examples/NGHDL_Examples/Cmosinverter/Cmosinverter.cir
new file mode 100644
index 00000000..7736c9d0
--- /dev/null
+++ b/Examples/NGHDL_Examples/Cmosinverter/Cmosinverter.cir
@@ -0,0 +1,26 @@
+* /home/saurabh/eSim-Workspace/Cmosinvertor/Cmosinvertor.cir
+
+* EESchema Netlist Version 1.1 (Spice format) creation date: Wed Nov 27 14:17:36 2019
+
+* To exclude a component from the Spice Netlist add [Spice_Netlist_Enabled] user FIELD set to: N
+* To reorder the component spice node sequence add [Spice_Node_Sequence] user FIELD and define sequence: 2,1,0
+
+* Sheet Name: /
+U2 out1 plot_v1
+X1 out7 out1 INVCMOS
+X2 out1 out2 INVCMOS
+X3 out2 out3 INVCMOS
+U3 out2 plot_v1
+U4 out3 plot_v1
+X4 out3 out4 INVCMOS
+U5 out4 plot_v1
+X5 out4 out5 INVCMOS
+U6 out5 plot_v1
+X6 out5 out6 INVCMOS
+U7 out6 plot_v1
+U8 out7 plot_v1
+U9 out6 Net-_U1-Pad1_ adc_bridge_1
+U10 Net-_U1-Pad2_ out7 dac_bridge_1
+U1 Net-_U1-Pad1_ Net-_U1-Pad2_ inverter
+
+.end
diff --git a/Examples/NGHDL_Examples/Cmosinverter/Cmosinverter.cir.out b/Examples/NGHDL_Examples/Cmosinverter/Cmosinverter.cir.out
new file mode 100644
index 00000000..9cebe968
--- /dev/null
+++ b/Examples/NGHDL_Examples/Cmosinverter/Cmosinverter.cir.out
@@ -0,0 +1,45 @@
+* /home/saurabh/esim-workspace/cmosinvertor/cmosinvertor.cir
+
+.include INVCMOS.sub
+* u2 out1 plot_v1
+x1 out7 out1 INVCMOS
+x2 out1 out2 INVCMOS
+x3 out2 out3 INVCMOS
+* u3 out2 plot_v1
+* u4 out3 plot_v1
+x4 out3 out4 INVCMOS
+* u5 out4 plot_v1
+x5 out4 out5 INVCMOS
+* u6 out5 plot_v1
+x6 out5 out6 INVCMOS
+* u7 out6 plot_v1
+* u8 out7 plot_v1
+* u9 out6 net-_u1-pad1_ adc_bridge_1
+* u10 net-_u1-pad2_ out7 dac_bridge_1
+* u1 net-_u1-pad1_ net-_u1-pad2_ inverter
+a1 [out6 ] [net-_u1-pad1_ ] u9
+a2 [net-_u1-pad2_ ] [out7 ] u10
+a3 [net-_u1-pad1_ ] [net-_u1-pad2_ ] u1
+* Schematic Name: adc_bridge_1, NgSpice Name: adc_bridge
+.model u9 adc_bridge(fall_delay=1.0e-6 in_high=2.0 rise_delay=1.0e-6 in_low=1.0 )
+* Schematic Name: dac_bridge_1, NgSpice Name: dac_bridge
+.model u10 dac_bridge(out_undef=0.5 out_low=0.0 out_high=5.0 t_rise=1.0e-6 t_fall=1.0e-6 input_load=1.0e-12 )
+* Schematic Name: inverter, NgSpice Name: inverter
+.model u1 inverter(fall_delay=1.0e-6 input_load=1.0e-12 rise_delay=1.0e-6 instance_id=1 )
+.tran 1e-03 200e-03 0e-00
+
+* Control Statements
+.control
+option noopalter
+run
+print allv > plot_data_v.txt
+print alli > plot_data_i.txt
+plot v(out1)
+plot v(out2)
+plot v(out3)
+plot v(out4)
+plot v(out5)
+plot v(out6)
+plot v(out7)
+.endc
+.end
diff --git a/Examples/NGHDL_Examples/Cmosinverter/Cmosinverter.pro b/Examples/NGHDL_Examples/Cmosinverter/Cmosinverter.pro
new file mode 100644
index 00000000..cb9e3c98
--- /dev/null
+++ b/Examples/NGHDL_Examples/Cmosinverter/Cmosinverter.pro
@@ -0,0 +1,74 @@
+update=Wed Nov 27 14:17:05 2019
+version=1
+last_client=eeschema
+[general]
+version=1
+RootSch=
+BoardNm=
+[pcbnew]
+version=1
+LastNetListRead=
+UseCmpFile=1
+PadDrill=0.600000000000
+PadDrillOvalY=0.600000000000
+PadSizeH=1.500000000000
+PadSizeV=1.500000000000
+PcbTextSizeV=1.500000000000
+PcbTextSizeH=1.500000000000
+PcbTextThickness=0.300000000000
+ModuleTextSizeV=1.000000000000
+ModuleTextSizeH=1.000000000000
+ModuleTextSizeThickness=0.150000000000
+SolderMaskClearance=0.000000000000
+SolderMaskMinWidth=0.000000000000
+DrawSegmentWidth=0.200000000000
+BoardOutlineThickness=0.100000000000
+ModuleOutlineThickness=0.150000000000
+[cvpcb]
+version=1
+NetIExt=net
+[eeschema]
+version=1
+LibDir=
+[eeschema/libraries]
+LibName1=adc-dac
+LibName2=memory
+LibName3=xilinx
+LibName4=microcontrollers
+LibName5=dsp
+LibName6=microchip
+LibName7=analog_switches
+LibName8=motorola
+LibName9=texas
+LibName10=intel
+LibName11=audio
+LibName12=interface
+LibName13=digital-audio
+LibName14=philips
+LibName15=display
+LibName16=cypress
+LibName17=siliconi
+LibName18=opto
+LibName19=atmel
+LibName20=contrib
+LibName21=power
+LibName22=device
+LibName23=transistors
+LibName24=conn
+LibName25=linear
+LibName26=regul
+LibName27=74xx
+LibName28=cmos4000
+LibName29=eSim_Analog
+LibName30=eSim_Devices
+LibName31=eSim_Digital
+LibName32=eSim_Hybrid
+LibName33=eSim_Miscellaneous
+LibName34=eSim_Power
+LibName35=eSim_Sources
+LibName36=eSim_User
+LibName37=eSim_Plot
+LibName38=eSim_PSpice
+LibName39=/home/saurabh/Downloads/eSim-1.1.2/kicadSchematicLibrary/eSim_Subckt
+LibName40=eSim_Nghdl
+
diff --git a/Examples/NGHDL_Examples/Cmosinverter/Cmosinverter.proj b/Examples/NGHDL_Examples/Cmosinverter/Cmosinverter.proj
new file mode 100644
index 00000000..851b8737
--- /dev/null
+++ b/Examples/NGHDL_Examples/Cmosinverter/Cmosinverter.proj
@@ -0,0 +1 @@
+schematicFile Cmosinvertor.sch
diff --git a/Examples/NGHDL_Examples/Cmosinverter/Cmosinverter.sch b/Examples/NGHDL_Examples/Cmosinverter/Cmosinverter.sch
new file mode 100644
index 00000000..7abedbb2
--- /dev/null
+++ b/Examples/NGHDL_Examples/Cmosinverter/Cmosinverter.sch
@@ -0,0 +1,303 @@
+EESchema Schematic File Version 2
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:device
+LIBS:transistors
+LIBS:conn
+LIBS:linear
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_User
+LIBS:eSim_Plot
+LIBS:eSim_PSpice
+LIBS:eSim_Subckt
+LIBS:eSim_Nghdl
+LIBS:Cmosinvertor-cache
+EELAYER 25 0
+EELAYER END
+$Descr A3 16535 11693
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+$Comp
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+Text GLabel 4350 2100 3 60 Input ~ 0
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+$EndComp
+$EndSCHEMATC
diff --git a/Examples/NGHDL_Examples/Cmosinverter/Cmosinverter_Previous_Values.xml b/Examples/NGHDL_Examples/Cmosinverter/Cmosinverter_Previous_Values.xml
new file mode 100644
index 00000000..a1a22d60
--- /dev/null
+++ b/Examples/NGHDL_Examples/Cmosinverter/Cmosinverter_Previous_Values.xml
@@ -0,0 +1 @@
+<KicadtoNgspice><source><v2 name="Source type">dc<field1 name="Value">5</field1></v2><v1 name="Source type">pwl<field1 name="Enter in pwl format">0m 0 0.5m 5 50m 5 50.5m 0 100m 0 100.5m 5 150m 5 150.5m 0 200m 0</field1></v1><v1 name="Source type">dc<field1 name="Value">5</field1></v1></source><model><u9 name="type">adc_bridge<field1 name="Enter Fall Delay (default=1.0e-9)">1.0e-6</field1><field2 name="Enter value for in_high (default=2.0)" /><field3 name="Enter Rise Delay (default=1.0e-9)">1.0e-6</field3><field4 name="Enter value for in_low (default=1.0)" /></u9><u10 name="type">dac_bridge<field5 name="Enter value for input load (default=1.0e-12)" /><field6 name="Enter value for out_low (default=0.0)" /><field7 name="Enter value for out_high (default=5.0)" /><field8 name="Enter the Rise Time (default=1.0e-9)" /><field9 name="Enter the Fall Time (default=1.0e-9)" /><field10 name="Enter value for out_undef (default=0.5)" /></u10><u1 name="type">inverter<field11 name="Enter Fall Delay (default=1.0e-9)">1.0e-6</field11><field12 name="Enter Input Load (default=1.0e-12)" /><field13 name="Enter Rise Delay (default=1.0e-9)" /><field14 name="Enter Instance ID (Between 0-99)" /><field15 name="Enter the stop time to end the simulation (default=90e-9)" /></u1><u1 name="type">d_inverter<field11 name="Enter Fall Delay (default=1.0e-9)">1.0e-6</field11><field12 name="Enter Input Load (default=1.0e-12)" /><field13 name="Enter Rise Delay (default=1.0e-9)">1.0e-6</field13></u1><u27 name="type">inverter<field11 name="Enter Fall Delay (default=1.0e-9)">1.0e-3</field11><field12 name="Enter Input Load (default=1.0e-12)" /><field13 name="Enter Rise Delay (default=1.0e-9)">1.0e-6</field13><field14 name="Enter Instance ID (Between 0-99)" /><field15 name="Enter the stop time to end the simulation (default=90e-9)">200e-3</field15></u27><u35 name="type">inverter<field16 name="Enter Fall Delay (default=1.0e-9)">1.0e-6</field16><field17 name="Enter Input Load (default=1.0e-12)" /><field18 name="Enter Rise Delay (default=1.0e-9)">1.0e-6</field18><field19 name="Enter Instance ID (Between 0-99)" /><field20 name="Enter the stop time to end the simulation (default=90e-9)">50e-3</field20></u35><u26 name="type">inverter<field21 name="Enter Fall Delay (default=1.0e-9)">1.0e-6</field21><field22 name="Enter Input Load (default=1.0e-12)" /><field23 name="Enter Rise Delay (default=1.0e-9)">1.0e-6</field23><field24 name="Enter Instance ID (Between 0-99)" /><field25 name="Enter the stop time to end the simulation (default=90e-9)">50e-3</field25></u26><u19 name="type">inverter<field26 name="Enter Fall Delay (default=1.0e-9)">1.0e-6</field26><field27 name="Enter Input Load (default=1.0e-12)" /><field28 name="Enter Rise Delay (default=1.0e-9)">1.0e-6</field28><field29 name="Enter Instance ID (Between 0-99)" /><field30 name="Enter the stop time to end the simulation (default=90e-9)">50e-3</field30></u19><u13 name="type">inverter<field31 name="Enter Fall Delay (default=1.0e-9)">1.0e-6</field31><field32 name="Enter Input Load (default=1.0e-12)" /><field33 name="Enter Rise Delay (default=1.0e-9)">1.0e-6</field33><field34 name="Enter Instance ID (Between 0-99)" /><field35 name="Enter the stop time to end the simulation (default=90e-9)" /></u13><u11 name="type">adc_bridge<field41 name="Enter Fall Delay (default=1.0e-9)">1.0e-6</field41><field42 name="Enter value for in_high (default=2.0)" /><field43 name="Enter Rise Delay (default=1.0e-9)">1.0e-6</field43><field44 name="Enter value for in_low (default=1.0)" /></u11><u14 name="type">dac_bridge<field45 name="Enter value for input load (default=1.0e-12)" /><field46 name="Enter value for out_low (default=0.0)" /><field47 name="Enter value for out_high (default=5.0)" /><field48 name="Enter the Rise Time (default=1.0e-9)">1.0e-6</field48><field49 name="Enter the Fall Time (default=1.0e-9)">1.0e-6</field49><field50 name="Enter value for out_undef (default=0.5)" /></u14><u16 name="type">adc_bridge<field51 name="Enter Fall Delay (default=1.0e-9)">1.0e-6</field51><field52 name="Enter value for in_high (default=2.0)" /><field53 name="Enter Rise Delay (default=1.0e-9)">1.0e-6</field53><field54 name="Enter value for in_low (default=1.0)" /></u16><u20 name="type">dac_bridge<field55 name="Enter value for input load (default=1.0e-12)" /><field56 name="Enter value for out_low (default=0.0)" /><field57 name="Enter value for out_high (default=5.0)" /><field58 name="Enter the Rise Time (default=1.0e-9)">1.0e-6</field58><field59 name="Enter the Fall Time (default=1.0e-9)">1.0e-6</field59><field60 name="Enter value for out_undef (default=0.5)" /></u20><u22 name="type">adc_bridge<field61 name="Enter Fall Delay (default=1.0e-9)">1.0e-6</field61><field62 name="Enter value for in_high (default=2.0)" /><field63 name="Enter Rise Delay (default=1.0e-9)">1.0e-6</field63><field64 name="Enter value for in_low (default=1.0)" /></u22><u28 name="type">dac_bridge<field65 name="Enter value for input load (default=1.0e-12)" /><field66 name="Enter value for out_low (default=0.0)" /><field67 name="Enter value for out_high (default=5.0)" /><field68 name="Enter the Rise Time (default=1.0e-9)">1.0e-6</field68><field69 name="Enter the Fall Time (default=1.0e-9)">1.0e-6</field69><field70 name="Enter value for out_undef (default=0.5)" /></u28><u23 name="type">adc_bridge<field71 name="Enter Fall Delay (default=1.0e-9)">1.0e-6</field71><field72 name="Enter value for in_high (default=2.0)" /><field73 name="Enter Rise Delay (default=1.0e-9)">1.0e-6</field73><field74 name="Enter value for in_low (default=1.0)" /></u23><u18 name="type">dac_bridge<field75 name="Enter value for input load (default=1.0e-12)" /><field76 name="Enter value for out_low (default=0.0)" /><field77 name="Enter value for out_high (default=5.0)" /><field78 name="Enter the Rise Time (default=1.0e-9)">1.0e-6</field78><field79 name="Enter the Fall Time (default=1.0e-9)">1.0e-6</field79><field80 name="Enter value for out_undef (default=0.5)" /></u18><u31 name="type">adc_bridge<field81 name="Enter Fall Delay (default=1.0e-9)">1.0e-6</field81><field82 name="Enter value for in_high (default=2.0)" /><field83 name="Enter Rise Delay (default=1.0e-9)">1.0e-6</field83><field84 name="Enter value for in_low (default=1.0)" /></u31><u33 name="type">dac_bridge<field85 name="Enter value for input load (default=1.0e-12)" /><field86 name="Enter value for out_low (default=0.0)" /><field87 name="Enter value for out_high (default=5.0)" /><field88 name="Enter the Rise Time (default=1.0e-9)">1.0e-6</field88><field89 name="Enter the Fall Time (default=1.0e-9)">1.0e-6</field89><field90 name="Enter value for out_undef (default=0.5)" /></u33><u32 name="type">adc_bridge<field91 name="Enter Fall Delay (default=1.0e-9)">1.0e-6</field91><field92 name="Enter value for in_high (default=2.0)" /><field93 name="Enter Rise Delay (default=1.0e-9)">1.0e-6</field93><field94 name="Enter value for in_low (default=1.0)" /></u32><u29 name="type">dac_bridge<field95 name="Enter value for input load (default=1.0e-12)" /><field96 name="Enter value for out_low (default=0.0)" /><field97 name="Enter value for out_high (default=5.0)" /><field98 name="Enter the Rise Time (default=1.0e-9)">1.0e-6</field98><field99 name="Enter the Fall Time (default=1.0e-9)">1.0e-6</field99><field100 name="Enter value for out_undef (default=0.5)" /></u29><u25 name="type">test<field101 name="Enter Fall Delay (default=1.0e-9)">1.0e-6</field101><field102 name="Enter Input Load (default=1.0e-12)" /><field103 name="Enter Rise Delay (default=1.0e-9)" /><field104 name="Enter Instance ID (Between 0-99)" /><field105 name="Enter the stop time to end the simulation (default=90e-9)" /></u25></model><devicemodel /><subcircuit><x2><field>/home/saurabh/Downloads/inverterCMOSsubcktFiles/INVCMOS</field></x2><x3><field>/home/saurabh/Downloads/inverterCMOSsubcktFiles/INVCMOS</field></x3><x1><field>/home/saurabh/Downloads/inverterCMOSsubcktFiles/INVCMOS</field></x1><x6><field>/home/saurabh/Downloads/inverterCMOSsubcktFiles/INVCMOS</field></x6><x4><field>/home/saurabh/Downloads/inverterCMOSsubcktFiles/INVCMOS</field></x4><x5><field>/home/saurabh/Downloads/inverterCMOSsubcktFiles/INVCMOS</field></x5></subcircuit><analysis><ac><field1 name="Lin">false</field1><field2 name="Dec">true</field2><field3 name="Oct">false</field3><field4 name="Start Frequency">0</field4><field5 name="Stop Frequency">5k</field5><field6 name="No. of points">500</field6><field7 name="Start Fre Combo">Hz</field7><field8 name="Stop Fre Combo">Hz</field8></ac><dc><field1 name="Source 1" /><field2 name="Start" /><field3 name="Increment" /><field4 name="Stop" /><field5 name="Operating Point">0</field5><field6 name="Start Combo">Volts or Amperes</field6><field7 name="Increment Combo">Volts or Amperes</field7><field8 name="Stop Combo">Volts or Amperes</field8><field9 name="Source 2" /><field10 name="Start" /><field11 name="Increment" /><field12 name="Stop" /><field13 name="Start Combo">Volts or Amperes</field13><field14 name="Increment Combo">Volts or Amperes</field14><field15 name="Stop Combo">Volts or Amperes</field15></dc><tran><field1 name="Start Time">0</field1><field2 name="Step Time">10</field2><field3 name="Stop Time">200</field3><field4 name="Start Combo">Sec</field4><field5 name="Step Combo">ms</field5><field6 name="Stop Combo">ms</field6></tran></analysis></KicadtoNgspice> \ No newline at end of file
diff --git a/Examples/NGHDL_Examples/Cmosinverter/INVCMOS-cache.lib b/Examples/NGHDL_Examples/Cmosinverter/INVCMOS-cache.lib
new file mode 100644
index 00000000..cc25b0c9
--- /dev/null
+++ b/Examples/NGHDL_Examples/Cmosinverter/INVCMOS-cache.lib
@@ -0,0 +1,146 @@
+EESchema-LIBRARY Version 2.3
+#encoding utf-8
+#
+# DC
+#
+DEF DC v 0 40 Y Y 1 F N
+F0 "v" -200 100 60 H V C CNN
+F1 "DC" -200 -50 60 H V C CNN
+F2 "R1" -300 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+$FPLIST
+ 1_pin
+$ENDFPLIST
+DRAW
+C 0 0 150 0 1 0 N
+X + 1 0 450 300 D 50 50 1 1 w
+X - 2 0 -450 300 U 50 50 1 1 w
+ENDDRAW
+ENDDEF
+#
+# GND
+#
+DEF GND #PWR 0 0 Y Y 1 F P
+F0 "#PWR" 0 -250 50 H I C CNN
+F1 "GND" 0 -150 50 H V C CNN
+F2 "" 0 0 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+DRAW
+P 6 0 1 0 0 0 0 -50 50 -50 0 -100 -50 -50 0 -50 N
+X GND 1 0 0 0 D 50 50 1 1 W N
+ENDDRAW
+ENDDEF
+#
+# PORT
+#
+DEF PORT U 0 40 Y Y 26 F N
+F0 "U" 50 100 30 H V C CNN
+F1 "PORT" 0 0 30 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+A 325 225 285 -1421 -1278 0 1 0 N 100 50 150 0
+A 376 -275 356 1294 1408 0 1 0 N 150 0 100 -50
+S -100 50 100 -50 0 1 0 N
+X ~ 1 250 0 100 L 30 30 1 1 B
+X ~ 2 250 0 100 L 30 30 2 1 B
+X ~ 3 250 0 100 L 30 30 3 1 B
+X ~ 4 250 0 100 L 30 30 4 1 B
+X ~ 5 250 0 100 L 30 30 5 1 B
+X ~ 6 250 0 100 L 30 30 6 1 B
+X ~ 7 250 0 100 L 30 30 7 1 B
+X ~ 8 250 0 100 L 30 30 8 1 B
+X ~ 9 250 0 100 L 30 30 9 1 B
+X ~ 10 250 0 100 L 30 30 10 1 B
+X ~ 11 250 0 100 L 30 30 11 1 B
+X ~ 12 250 0 100 L 30 30 12 1 B
+X ~ 13 250 0 100 L 30 30 13 1 B
+X ~ 14 250 0 100 L 30 30 14 1 B
+X ~ 15 250 0 100 L 30 30 15 1 B
+X ~ 16 250 0 100 L 30 30 16 1 B
+X ~ 17 250 0 100 L 30 30 17 1 B
+X ~ 18 250 0 100 L 30 30 18 1 B
+X ~ 19 250 0 100 L 30 30 19 1 B
+X ~ 20 250 0 100 L 30 30 20 1 B
+X ~ 21 250 0 100 L 30 30 21 1 B
+X ~ 22 250 0 100 L 30 30 22 1 B
+X ~ 23 250 0 100 L 30 30 23 1 B
+X ~ 24 250 0 100 L 30 30 24 1 B
+X ~ 25 250 0 100 L 30 30 25 1 B
+X ~ 26 250 0 100 L 30 30 26 1 B
+ENDDRAW
+ENDDEF
+#
+# eSim_C
+#
+DEF eSim_C C 0 10 N Y 1 F N
+F0 "C" 25 100 50 H V L CNN
+F1 "eSim_C" 25 -100 50 H V L CNN
+F2 "" 38 -150 30 H V C CNN
+F3 "" 0 0 60 H V C CNN
+$FPLIST
+ C_*
+$ENDFPLIST
+DRAW
+P 2 0 1 20 -80 -30 80 -30 N
+P 2 0 1 20 -80 30 80 30 N
+X ~ 1 0 150 110 D 40 40 1 1 P
+X ~ 2 0 -150 110 U 40 40 1 1 P
+ENDDRAW
+ENDDEF
+#
+# eSim_MOS_N
+#
+DEF eSim_MOS_N M 0 0 Y N 1 F N
+F0 "M" 0 -150 50 H V R CNN
+F1 "eSim_MOS_N" 100 -50 50 H V R CNN
+F2 "" 300 -300 29 H V C CNN
+F3 "" 100 -200 60 H V C CNN
+DRAW
+C 150 -200 111 0 1 10 N
+P 2 0 1 10 130 -290 130 -250 N
+P 2 0 1 0 130 -270 200 -270 N
+P 2 0 1 10 130 -220 130 -180 N
+P 2 0 1 0 130 -200 200 -200 N
+P 2 0 1 10 130 -150 130 -110 N
+P 2 0 1 0 130 -130 200 -130 N
+P 2 0 1 0 200 -300 200 -270 N
+P 2 0 1 0 200 -130 200 -100 N
+P 3 0 1 10 110 -275 110 -125 110 -125 N
+P 3 0 1 0 200 -200 300 -200 300 -250 N
+P 4 0 1 0 140 -200 180 -215 180 -185 140 -200 F
+X D 1 200 0 100 D 50 50 1 1 P
+X G 2 -100 -200 210 R 50 50 1 1 P
+X S 3 200 -400 100 U 50 50 1 1 P
+X B 4 300 -350 98 U 47 47 1 1 P
+ENDDRAW
+ENDDEF
+#
+# eSim_MOS_P
+#
+DEF eSim_MOS_P M 0 0 Y N 1 F N
+F0 "M" -50 50 50 H V R CNN
+F1 "eSim_MOS_P" 50 150 50 H V R CNN
+F2 "" 250 100 29 H V C CNN
+F3 "" 50 0 60 H V C CNN
+DRAW
+C 100 0 111 0 1 10 N
+P 2 0 1 0 80 -70 150 -70 N
+P 2 0 1 10 80 -50 80 -90 N
+P 2 0 1 0 80 0 150 0 N
+P 2 0 1 10 80 20 80 -20 N
+P 2 0 1 0 80 70 150 70 N
+P 2 0 1 10 80 90 80 50 N
+P 2 0 1 0 150 -70 150 -100 N
+P 2 0 1 0 150 100 150 70 N
+P 3 0 1 10 60 75 60 -75 60 -75 N
+P 3 0 1 0 150 0 250 0 250 -50 N
+P 4 0 1 0 140 0 100 -15 100 15 140 0 F
+X D 1 150 200 100 D 50 50 1 1 P
+X G 2 -150 0 210 R 50 50 1 1 P
+X S 3 150 -200 100 U 50 50 1 1 P
+X B 4 250 -150 100 U 50 50 1 1 P
+ENDDRAW
+ENDDEF
+#
+#End Library
diff --git a/Examples/NGHDL_Examples/Cmosinverter/INVCMOS.cir b/Examples/NGHDL_Examples/Cmosinverter/INVCMOS.cir
new file mode 100644
index 00000000..44f1df81
--- /dev/null
+++ b/Examples/NGHDL_Examples/Cmosinverter/INVCMOS.cir
@@ -0,0 +1,15 @@
+* /home/saurabh/Downloads/eSim-1.1.2/src/SubcircuitLibrary/INVCMOS/INVCMOS.cir
+
+* EESchema Netlist Version 1.1 (Spice format) creation date: Sun Aug 25 17:34:16 2019
+
+* To exclude a component from the Spice Netlist add [Spice_Netlist_Enabled] user FIELD set to: N
+* To reorder the component spice node sequence add [Spice_Node_Sequence] user FIELD and define sequence: 2,1,0
+
+* Sheet Name: /
+U1 Net-_M1-Pad2_ Net-_C1-Pad1_ PORT
+M1 Net-_C1-Pad1_ Net-_M1-Pad2_ GND GND eSim_MOS_N
+M2 Net-_M2-Pad1_ Net-_M1-Pad2_ Net-_C1-Pad1_ Net-_M2-Pad1_ eSim_MOS_P
+v1 Net-_M2-Pad1_ GND 5
+C1 Net-_C1-Pad1_ GND 1u
+
+.end
diff --git a/Examples/NGHDL_Examples/Cmosinverter/INVCMOS.cir.out b/Examples/NGHDL_Examples/Cmosinverter/INVCMOS.cir.out
new file mode 100644
index 00000000..cb2b6641
--- /dev/null
+++ b/Examples/NGHDL_Examples/Cmosinverter/INVCMOS.cir.out
@@ -0,0 +1,18 @@
+* /home/saurabh/downloads/esim-1.1.2/src/subcircuitlibrary/invcmos/invcmos.cir
+
+.include NMOS-180nm.lib
+.include PMOS-180nm.lib
+* u1 net-_m1-pad2_ net-_c1-pad1_ port
+m1 net-_c1-pad1_ net-_m1-pad2_ gnd gnd CMOSN W=100u L=100u M=1
+m2 net-_m2-pad1_ net-_m1-pad2_ net-_c1-pad1_ net-_m2-pad1_ CMOSP W=100u L=100u M=1
+v1 net-_m2-pad1_ gnd 5
+c1 net-_c1-pad1_ gnd 1u
+.tran 0e-03 0e-03 0e-00
+
+* Control Statements
+.control
+run
+print allv > plot_data_v.txt
+print alli > plot_data_i.txt
+.endc
+.end
diff --git a/Examples/NGHDL_Examples/Cmosinverter/INVCMOS.pro b/Examples/NGHDL_Examples/Cmosinverter/INVCMOS.pro
new file mode 100644
index 00000000..b3f410b6
--- /dev/null
+++ b/Examples/NGHDL_Examples/Cmosinverter/INVCMOS.pro
@@ -0,0 +1,73 @@
+update=Sun Aug 25 15:54:56 2019
+version=1
+last_client=eeschema
+[general]
+version=1
+RootSch=
+BoardNm=
+[pcbnew]
+version=1
+LastNetListRead=
+UseCmpFile=1
+PadDrill=0.600000000000
+PadDrillOvalY=0.600000000000
+PadSizeH=1.500000000000
+PadSizeV=1.500000000000
+PcbTextSizeV=1.500000000000
+PcbTextSizeH=1.500000000000
+PcbTextThickness=0.300000000000
+ModuleTextSizeV=1.000000000000
+ModuleTextSizeH=1.000000000000
+ModuleTextSizeThickness=0.150000000000
+SolderMaskClearance=0.000000000000
+SolderMaskMinWidth=0.000000000000
+DrawSegmentWidth=0.200000000000
+BoardOutlineThickness=0.100000000000
+ModuleOutlineThickness=0.150000000000
+[cvpcb]
+version=1
+NetIExt=net
+[eeschema]
+version=1
+LibDir=
+[eeschema/libraries]
+LibName1=adc-dac
+LibName2=memory
+LibName3=xilinx
+LibName4=microcontrollers
+LibName5=dsp
+LibName6=microchip
+LibName7=analog_switches
+LibName8=motorola
+LibName9=texas
+LibName10=intel
+LibName11=audio
+LibName12=interface
+LibName13=digital-audio
+LibName14=philips
+LibName15=display
+LibName16=cypress
+LibName17=siliconi
+LibName18=opto
+LibName19=atmel
+LibName20=contrib
+LibName21=power
+LibName22=device
+LibName23=transistors
+LibName24=conn
+LibName25=linear
+LibName26=regul
+LibName27=74xx
+LibName28=cmos4000
+LibName29=eSim_Analog
+LibName30=eSim_Devices
+LibName31=eSim_Digital
+LibName32=eSim_Hybrid
+LibName33=eSim_Miscellaneous
+LibName34=eSim_Power
+LibName35=eSim_Sources
+LibName36=eSim_User
+LibName37=eSim_Plot
+LibName38=eSim_PSpice
+LibName39=/home/saurabh/Downloads/eSim-1.1.2/kicadSchematicLibrary/eSim_Subckt
+
diff --git a/Examples/NGHDL_Examples/Cmosinverter/INVCMOS.sch b/Examples/NGHDL_Examples/Cmosinverter/INVCMOS.sch
new file mode 100644
index 00000000..13a7fc09
--- /dev/null
+++ b/Examples/NGHDL_Examples/Cmosinverter/INVCMOS.sch
@@ -0,0 +1,189 @@
+EESchema Schematic File Version 2
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:opto
+LIBS:atmel
+LIBS:contrib
+LIBS:power
+LIBS:device
+LIBS:transistors
+LIBS:conn
+LIBS:linear
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_User
+LIBS:eSim_Plot
+LIBS:eSim_PSpice
+LIBS:eSim_Subckt
+LIBS:INVCMOS-cache
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date "29 apr 2015"
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+Wire Wire Line
+ 5900 4000 5900 4150
+Connection ~ 5800 2450
+Connection ~ 5800 4150
+Wire Wire Line
+ 5900 4150 5800 4150
+Connection ~ 5050 3350
+Wire Wire Line
+ 4000 3350 5050 3350
+Wire Wire Line
+ 5050 3850 5500 3850
+Wire Wire Line
+ 5050 2700 5050 3850
+Wire Wire Line
+ 5050 2700 5500 2700
+Wire Wire Line
+ 5800 3650 5800 2900
+Wire Wire Line
+ 5800 2500 5800 2300
+Connection ~ 4200 3350
+$Comp
+L PORT U1
+U 1 1 5D6263BC
+P 3750 3350
+F 0 "U1" H 3800 3450 30 0000 C CNN
+F 1 "PORT" H 3750 3350 30 0000 C CNN
+F 2 "" H 3750 3350 60 0000 C CNN
+F 3 "" H 3750 3350 60 0000 C CNN
+ 1 3750 3350
+ 1 0 0 -1
+$EndComp
+Wire Wire Line
+ 6050 3250 5800 3250
+Connection ~ 5800 3250
+Wire Wire Line
+ 5800 4050 5800 4550
+$Comp
+L eSim_MOS_N M1
+U 1 1 5D6265DB
+P 5600 3650
+F 0 "M1" H 5600 3500 50 0000 R CNN
+F 1 "eSim_MOS_N" H 5700 3600 50 0000 R CNN
+F 2 "" H 5900 3350 29 0000 C CNN
+F 3 "" H 5700 3450 60 0000 C CNN
+ 1 5600 3650
+ 1 0 0 -1
+$EndComp
+$Comp
+L eSim_MOS_P M2
+U 1 1 5D626659
+P 5650 2700
+F 0 "M2" H 5600 2750 50 0000 R CNN
+F 1 "eSim_MOS_P" H 5700 2850 50 0000 R CNN
+F 2 "" H 5900 2800 29 0000 C CNN
+F 3 "" H 5700 2700 60 0000 C CNN
+ 1 5650 2700
+ 1 0 0 -1
+$EndComp
+Wire Wire Line
+ 5900 2850 6050 2850
+Wire Wire Line
+ 6050 2850 6050 2450
+Wire Wire Line
+ 6050 2450 5800 2450
+Connection ~ 6000 3250
+Connection ~ 5800 4300
+$Comp
+L GND #PWR1
+U 1 1 5D626C59
+P 5800 4550
+F 0 "#PWR1" H 5800 4300 50 0001 C CNN
+F 1 "GND" H 5800 4400 50 0000 C CNN
+F 2 "" H 5800 4550 50 0001 C CNN
+F 3 "" H 5800 4550 50 0001 C CNN
+ 1 5800 4550
+ 1 0 0 -1
+$EndComp
+$Comp
+L DC v1
+U 1 1 5D626C7F
+P 6250 2300
+F 0 "v1" H 6050 2400 60 0000 C CNN
+F 1 "5" H 6050 2250 60 0000 C CNN
+F 2 "R1" H 5950 2300 60 0000 C CNN
+F 3 "" H 6250 2300 60 0000 C CNN
+ 1 6250 2300
+ 0 -1 -1 0
+$EndComp
+$Comp
+L GND #PWR2
+U 1 1 5D626CF6
+P 6850 2300
+F 0 "#PWR2" H 6850 2050 50 0001 C CNN
+F 1 "GND" H 6850 2150 50 0000 C CNN
+F 2 "" H 6850 2300 50 0001 C CNN
+F 3 "" H 6850 2300 50 0001 C CNN
+ 1 6850 2300
+ 1 0 0 -1
+$EndComp
+Wire Wire Line
+ 6850 2300 6700 2300
+$Comp
+L PORT U1
+U 2 1 5D626DCB
+P 6300 3250
+F 0 "U1" H 6350 3350 30 0000 C CNN
+F 1 "PORT" H 6300 3250 30 0000 C CNN
+F 2 "" H 6300 3250 60 0000 C CNN
+F 3 "" H 6300 3250 60 0000 C CNN
+ 2 6300 3250
+ -1 0 0 1
+$EndComp
+$Comp
+L eSim_C C1
+U 1 1 5D62796C
+P 6050 3850
+F 0 "C1" H 6075 3950 50 0000 L CNN
+F 1 "1u" H 6075 3750 50 0000 L CNN
+F 2 "" H 6088 3700 30 0000 C CNN
+F 3 "" H 6050 3850 60 0000 C CNN
+ 1 6050 3850
+ 1 0 0 -1
+$EndComp
+Wire Wire Line
+ 6050 3700 6050 3400
+Wire Wire Line
+ 6050 3400 6000 3400
+Wire Wire Line
+ 6000 3400 6000 3250
+Wire Wire Line
+ 6050 4000 6050 4300
+Wire Wire Line
+ 6050 4300 5800 4300
+$EndSCHEMATC
diff --git a/Examples/NGHDL_Examples/Cmosinverter/INVCMOS.sub b/Examples/NGHDL_Examples/Cmosinverter/INVCMOS.sub
new file mode 100644
index 00000000..2319995c
--- /dev/null
+++ b/Examples/NGHDL_Examples/Cmosinverter/INVCMOS.sub
@@ -0,0 +1,12 @@
+* Subcircuit INVCMOS
+.subckt INVCMOS net-_m1-pad2_ net-_c1-pad1_
+* /home/saurabh/downloads/esim-1.1.2/src/subcircuitlibrary/invcmos/invcmos.cir
+.include NMOS-180nm.lib
+.include PMOS-180nm.lib
+m1 net-_c1-pad1_ net-_m1-pad2_ gnd gnd CMOSN W=100u L=100u M=1
+m2 net-_m2-pad1_ net-_m1-pad2_ net-_c1-pad1_ net-_m2-pad1_ CMOSP W=100u L=100u M=1
+v1 net-_m2-pad1_ gnd 5
+c1 net-_c1-pad1_ gnd 1u
+* Control Statements
+
+.ends INVCMOS \ No newline at end of file
diff --git a/Examples/NGHDL_Examples/Cmosinverter/INVCMOS_Previous_Values.xml b/Examples/NGHDL_Examples/Cmosinverter/INVCMOS_Previous_Values.xml
new file mode 100644
index 00000000..e5bb98c7
--- /dev/null
+++ b/Examples/NGHDL_Examples/Cmosinverter/INVCMOS_Previous_Values.xml
@@ -0,0 +1 @@
+<KicadtoNgspice><source><v1 name="Source type">5</v1></source><model /><devicemodel><m1><field>/home/saurabh/Downloads/eSim-1.1.2/src/deviceModelLibrary/MOS/NMOS-180nm.lib</field><field /><field /><field /></m1><m2><field>/home/saurabh/Downloads/eSim-1.1.2/src/deviceModelLibrary/MOS/PMOS-180nm.lib</field><field /><field /><field /></m2></devicemodel><subcircuit /><analysis><ac><field1 name="Lin">true</field1><field2 name="Dec">false</field2><field3 name="Oct">false</field3><field4 name="Start Frequency" /><field5 name="Stop Frequency" /><field6 name="No. of points" /><field7 name="Start Fre Combo">Hz</field7><field8 name="Stop Fre Combo">Hz</field8></ac><dc><field1 name="Source 1" /><field2 name="Start" /><field3 name="Increment" /><field4 name="Stop" /><field5 name="Operating Point">0</field5><field6 name="Start Combo">Volts or Amperes</field6><field7 name="Increment Combo">Volts or Amperes</field7><field8 name="Stop Combo">Volts or Amperes</field8><field9 name="Source 2" /><field10 name="Start" /><field11 name="Increment" /><field12 name="Stop" /><field13 name="Start Combo">Volts or Amperes</field13><field14 name="Increment Combo">Volts or Amperes</field14><field15 name="Stop Combo">Volts or Amperes</field15></dc><tran><field1 name="Start Time">0</field1><field2 name="Step Time">0</field2><field3 name="Stop Time">0</field3><field4 name="Start Combo">Sec</field4><field5 name="Step Combo">ms</field5><field6 name="Stop Combo">ms</field6></tran></analysis></KicadtoNgspice> \ No newline at end of file
diff --git a/Examples/NGHDL_Examples/Cmosinverter/NMOS-180nm.lib b/Examples/NGHDL_Examples/Cmosinverter/NMOS-180nm.lib
new file mode 100644
index 00000000..51e9b119
--- /dev/null
+++ b/Examples/NGHDL_Examples/Cmosinverter/NMOS-180nm.lib
@@ -0,0 +1,13 @@
+.model CMOSN NMOS (LEVEL=8 VERSION=3.2 TNOM=27 TOX=4.1E-9 XJ=1E-7 NCH=2.3549E17 VTH0=0.3823463 K1=0.5810697
++ K2=4.774618E-3 K3=0.0431669 K3B=1.1498346 W0=1E-7 NLX=1.910552E-7 DVT0W=0 DVT1W=0 DVT2W=0
++ DVT0=1.2894824 DVT1=0.3622063 DVT2=0.0713729 U0=280.633249 UA=-1.208537E-9 UB=2.158625E-18
++ UC=5.342807E-11 VSAT=9.366802E4 A0=1.7593146 AGS=0.3939741 B0=-6.413949E-9 B1=-1E-7 KETA=-5.180424E-4
++ A1=0 A2=1 RDSW=105.5517558 PRWG=0.5 PRWB=-0.1998871 WR=1 WINT=7.904732E-10 LINT=1.571424E-8 XL=0
++ XW=-1E-8 DWG=1.297221E-9 DWB=1.479041E-9 VOFF=-0.0955434 NFACTOR=2.4358891 CIT=0 CDSC=2.4E-4 CDSCD=0
++ CDSCB=0 ETA0=3.104851E-3 ETAB=-2.512384E-5 DSUB=0.0167075 PCLM=0.8073191 PDIBLC1=0.1666161 PDIBLC2=3.112892E-3
++ PDIBLCB=-0.1 DROUT=0.7875618 PSCBE1=8E10 PSCBE2=9.213635E-10 PVAG=3.85243E-3 DELTA=0.01 RSH=6.7 MOBMOD=1
++ PRT=0 UTE=-1.5 KT1=-0.11 KT1L=0 KT2=0.022 UA1=4.31E-9 UB1=-7.61E-18 UC1=-5.6E-11 AT=3.3E4 WL=0 WLN=1
++ WW=0 WWN=1 WWL=0 LL=0 LLN=1 LW=0 LWN=1 LWL=0 CAPMOD=2 XPART=0.5 CGDO=7.08E-10 CGSO=7.08E-10 CGBO=1E-12
++ CJ=9.68858E-4 PB=0.8 MJ=0.3864502 CJSW=2.512138E-10 PBSW=0.809286 MJSW=0.1060414 CJSWG=3.3E-10 PBSWG=0.809286
++ MJSWG=0.1060414 CF=0 PVTH0=-1.192722E-3 PRDSW=-5 PK2=6.450505E-5 WKETA=-4.27294E-4 LKETA=-0.0104078
++ PU0=6.3268729 PUA=2.226552E-11 PUB=0 PVSAT=969.1480157 PETA0=1E-4 PKETA=-1.049509E-3)
diff --git a/Examples/NGHDL_Examples/Cmosinverter/PMOS-180nm.lib b/Examples/NGHDL_Examples/Cmosinverter/PMOS-180nm.lib
new file mode 100644
index 00000000..032b5b95
--- /dev/null
+++ b/Examples/NGHDL_Examples/Cmosinverter/PMOS-180nm.lib
@@ -0,0 +1,11 @@
+.model CMOSP PMOS (LEVEL=8 VERSION=3.2 TNOM=27 TOX=4.1E-9 XJ=1E-7 NCH=4.1589E17 VTH0=-0.3938813 K1=0.5479015
++ K2=0.0360586 K3=0.0993095 K3B=5.7086622 W0=1E-6 NLX=1.313191E-7 DVT0W=0 DVT1W=0 DVT2W=0 DVT0=0.4911363
++ DVT1=0.2227356 DVT2=0.1 U0=115.6852975 UA=1.505832E-9 UB=1E-21 UC=-1E-10 VSAT=1.329694E5 A0=1.7590478
++ AGS=0.3641621 B0=3.427126E-7 B1=1.062928E-6 KETA=0.0134667 A1=0.6859506 A2=0.3506788 RDSW=168.5705677
++ PRWG=0.5 PRWB=-0.4987371 WR=1 WINT=0 LINT=3.028832E-8 XL=0 XW=-1E-8 DWG=-2.349633E-8 DWB=-7.152486E-9
++ VOFF=-0.0994037 NFACTOR=1.9424315 CIT=0 CDSC=2.4E-4 CDSCD=0 CDSCB=0 ETA0=0.0608072 ETAB=-0.0426148
++ DSUB=0.7343015 PCLM=3.2579974 PDIBLC1=7.229527E-6 PDIBLC2=0.025389 PDIBLCB=-1E-3 DROUT=0 PSCBE1=1.454878E10
++ PSCBE2=4.202027E-9 PVAG=15 DELTA=0.01 RSH=7.8 MOBMOD=1 PRT=0 UTE=-1.5 KT1=-0.11 KT1L=0 KT2=0.022 UA1=4.31E-9
++ UB1=-7.61E-18 UC1=-5.6E-11 AT=3.3E4 WL=0 WLN=1 WW=0 WWN=1 WWL=0 LL=0 LLN=1 LW=0 LWN=1 LWL=0 CAPMOD=2 XPART=0.5
++ CGDO=6.32E-10 CGSO=6.32E-10 CGBO=1E-12 CJ=1.172138E-3 PB=0.8421173 MJ=0.4109788 CJSW=2.242609E-10 PBSW=0.8 + MJSW=0.3752089 CJSWG=4.22E-10 PBSWG=0.8 MJSWG=0.3752089 CF=0 PVTH0=1.888482E-3 PRDSW=11.5315407 PK2=1.559399E-3
++ WKETA=0.0319301 LKETA=2.955547E-3 PU0=-1.1105313 PUA=-4.62102E-11 PUB=1E-21 PVSAT=50 PETA0=1E-4 PKETA=-4.346368E-3)
diff --git a/Examples/NGHDL_Examples/Cmosinverter/analysis b/Examples/NGHDL_Examples/Cmosinverter/analysis
new file mode 100644
index 00000000..a8e9dce2
--- /dev/null
+++ b/Examples/NGHDL_Examples/Cmosinverter/analysis
@@ -0,0 +1 @@
+.tran 10e-03 200e-03 0e-00 \ No newline at end of file
diff --git a/Examples/NGHDL_Examples/Cmosinverter/plot_data_i.tx b/Examples/NGHDL_Examples/Cmosinverter/plot_data_i.tx
new file mode 100644
index 00000000..15d7dd62
--- /dev/null
+++ b/Examples/NGHDL_Examples/Cmosinverter/plot_data_i.tx
@@ -0,0 +1,60 @@
+ *for invcmos with delay 62000 nanosec, so cap should be 1nf
+ Transient Analysis Wed Oct 23 08:51:15 2019
+--------------------------------------------------------------------------------
+Index time a2#branch_1_0 v.x1.v1#branch v.x2.v1#branch
+--------------------------------------------------------------------------------
+0 0.000000e+00 0.000000e+00 -8.10296e-12 -1.44365e-11
+1 1.000000e-09 -2.81078e-17 -8.10285e-12 -1.44365e-11
+2 1.002200e-09 2.173939e-01 -1.15227e-01 -2.74526e-05
+3 1.006600e-09 2.162815e-01 -1.13448e-01 -7.48490e-05
+4 1.010243e-09 2.184120e-01 -1.13038e-01 -1.11758e-04
+5 1.013853e-09 2.172991e-01 -1.11472e-01 -1.50114e-04
+6 1.021072e-09 2.204125e-01 -1.10247e-01 -2.25851e-04
+7 1.029746e-09 2.209561e-01 -1.07578e-01 -3.19174e-04
+8 1.037077e-09 2.251083e-01 -1.06654e-01 -4.00503e-04
+9 1.044524e-09 2.264092e-01 -1.04663e-01 -4.87674e-04
+10 1.052725e-09 2.323633e-01 -1.04138e-01 -5.90750e-04
+11 1.060435e-09 2.354511e-01 -1.02773e-01 -6.95387e-04
+12 1.069658e-09 2.439113e-01 -1.02939e-01 -8.29368e-04
+13 1.080335e-09 2.510799e-01 -1.02271e-01 -9.94574e-04
+14 1.094923e-09 2.663147e-01 -1.03510e-01 -1.23319e-03
+15 1.114447e-09 2.843269e-01 -1.04606e-01 -1.56812e-03
+16 1.144395e-09 3.179442e-01 -1.09102e-01 -2.10007e-03
+17 1.190797e-09 3.663899e-01 -1.15973e-01 -2.93245e-03
+18 1.283601e-09 5.487499e-01 -1.31536e-01 -4.33032e-03
+19 1.367572e-09 6.869171e-01 -1.43008e-01 -5.18245e-03
+20 1.468572e-09 6.638993e-01 -1.53553e-01 -5.94693e-03
+21 1.575043e-09 7.087558e-01 -1.61684e-01 -6.60929e-03
+22 1.744449e-09 7.155756e-01 -1.69761e-01 -7.32968e-03
+23 1.995252e-09 7.377316e-01 -1.76018e-01 -7.92003e-03
+24 2.000000e-09 7.498134e-01 -1.76074e-01 -7.92665e-03
+25 2.000968e-09 6.032277e-01 -1.20805e-01 -7.90845e-03
+26 2.002904e-09 5.301496e-01 -1.20018e-01 -7.87685e-03
+27 2.006775e-09 4.946923e-01 -1.18388e-01 -7.82068e-03
+28 2.014518e-09 4.093856e-01 -1.15275e-01 -7.72364e-03
+29 2.029459e-09 3.783576e-01 -1.09456e-01 -7.56518e-03
+30 2.047840e-09 3.325140e-01 -1.02789e-01 -7.38462e-03
+31 2.079088e-09 3.288911e-01 -9.24054e-02 -7.06326e-03
+32 2.128139e-09 2.842254e-01 -7.83721e-02 -6.48629e-03
+33 2.183865e-09 2.371959e-01 -6.50659e-02 -5.82424e-03
+34 2.248107e-09 1.818877e-01 -5.26591e-02 -5.10705e-03
+35 2.326304e-09 1.364069e-01 -4.06836e-02 -4.32089e-03
+36 2.396878e-09 9.925243e-02 -3.22625e-02 -3.68610e-03
+37 2.474793e-09 7.365848e-02 -2.49854e-02 -3.03297e-03
+38 2.547274e-09 4.389135e-02 -1.96751e-02 -2.45002e-03
+39 2.554737e-09 3.366325e-02 -1.91978e-02 -2.40654e-03
+40 2.565922e-09 4.044917e-02 -1.85142e-02 -2.34368e-03
+41 2.578642e-09 2.998465e-02 -1.77577e-02 -2.27518e-03
+42 2.604081e-09 3.565078e-02 -1.63497e-02 -2.14457e-03
+43 2.635687e-09 2.374005e-02 -1.47438e-02 -1.99289e-03
+44 2.690358e-09 2.761452e-02 -1.23454e-02 -1.75395e-03
+45 2.777848e-09 1.285724e-02 -9.27836e-03 -1.42710e-03
+46 2.952828e-09 1.360492e-02 -5.25991e-03 -9.35047e-04
+47 3.302787e-09 -2.04270e-03 -1.67270e-03 -3.75480e-04
+48 3.710524e-09 4.745747e-03 -7.00511e-04 -1.15819e-04
+49 4.291175e-09 -4.33351e-03 -4.91850e-04 -4.79768e-06
+50 4.826620e-09 4.345034e-03 -4.94953e-04 1.274213e-05
+51 5.608149e-09 -4.33393e-03 -4.92033e-04 1.737270e-05
+52 6.602216e-09 4.344829e-03 -4.94930e-04 1.719331e-05
+53 8.590352e-09 -4.33400e-03 -4.91980e-04 1.743737e-05
+54 1.256662e-08 4.344672e-03 -4.94826e-04 1.720508e-05
diff --git a/Examples/NGHDL_Examples/PWM_Decremental/NPN.lib b/Examples/NGHDL_Examples/PWM_Decremental/NPN.lib
new file mode 100644
index 00000000..6509fe7a
--- /dev/null
+++ b/Examples/NGHDL_Examples/PWM_Decremental/NPN.lib
@@ -0,0 +1,4 @@
+.model Q2N2222 NPN( Is=14.34f Xti=3 Eg=1.11 Vaf=74.03 Bf=400 Ne=1.307
++ Ise=14.34f Ikf=.2847 Xtb=1.5 Br=6.092 Nc=2 Isc=0 Ikr=0 Rc=1 Cjc=7.306p
++ Mjc=.3416 Vjc=.75 Fc=.5 Cje=22.01p Mje=.377 Vje=.75 Tr=46.91n Tf=411.1p
++ Itf=.6 Vtf=1.7 Xtf=3 Rb=10)
diff --git a/Examples/NGHDL_Examples/PWM_Decremental/PNP.lib b/Examples/NGHDL_Examples/PWM_Decremental/PNP.lib
new file mode 100644
index 00000000..7edda0ea
--- /dev/null
+++ b/Examples/NGHDL_Examples/PWM_Decremental/PNP.lib
@@ -0,0 +1,4 @@
+.model Q2N2907A PNP(Is=650.6E-18 Xti=3 Eg=1.11 Vaf=115.7 Bf=231.7 Ne=1.829
++ Ise=54.81f Ikf=1.079 Xtb=1.5 Br=3.563 Nc=2 Isc=0 Ikr=0 Rc=.715
++ Cjc=14.76p Mjc=.5383 Vjc=.75 Fc=.5 Cje=19.82p Mje=.3357 Vje=.75
++ Tr=111.3n Tf=603.7p Itf=.65 Vtf=5 Xtf=1.7 Rb=10)
diff --git a/Examples/NGHDL_Examples/PWM_Decremental/PWM_Decremental-cache.lib b/Examples/NGHDL_Examples/PWM_Decremental/PWM_Decremental-cache.lib
new file mode 100644
index 00000000..68c7bb26
--- /dev/null
+++ b/Examples/NGHDL_Examples/PWM_Decremental/PWM_Decremental-cache.lib
@@ -0,0 +1,169 @@
+EESchema-LIBRARY Version 2.3
+#encoding utf-8
+#
+# C
+#
+DEF C C 0 10 N Y 1 F N
+F0 "C" 25 100 50 H V L CNN
+F1 "C" 25 -100 50 H V L CNN
+F2 "" 38 -150 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+$FPLIST
+ C_*
+$ENDFPLIST
+DRAW
+P 2 0 1 20 -80 -30 80 -30 N
+P 2 0 1 20 -80 30 80 30 N
+X ~ 1 0 150 110 D 50 50 1 1 P
+X ~ 2 0 -150 110 U 50 50 1 1 P
+ENDDRAW
+ENDDEF
+#
+# DC
+#
+DEF DC v 0 40 Y Y 1 F N
+F0 "v" -200 100 60 H V C CNN
+F1 "DC" -200 -50 60 H V C CNN
+F2 "R1" -300 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+$FPLIST
+ 1_pin
+$ENDFPLIST
+DRAW
+C 0 0 150 0 1 0 N
+X + 1 0 450 300 D 50 50 1 1 w
+X - 2 0 -450 300 U 50 50 1 1 w
+ENDDRAW
+ENDDEF
+#
+# R
+#
+DEF R R 0 0 N Y 1 F N
+F0 "R" 80 0 50 V V C CNN
+F1 "R" 0 0 50 V V C CNN
+F2 "" -70 0 50 V I C CNN
+F3 "" 0 0 50 H I C CNN
+$FPLIST
+ R_*
+ R_*
+$ENDFPLIST
+DRAW
+S -40 -100 40 100 0 1 10 N
+X ~ 1 0 150 50 D 50 50 1 1 P
+X ~ 2 0 -150 50 U 50 50 1 1 P
+ENDDRAW
+ENDDEF
+#
+# adc_bridge_1
+#
+DEF adc_bridge_1 U 0 40 Y Y 1 F N
+F0 "U" 0 0 60 H V C CNN
+F1 "adc_bridge_1" 0 150 60 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+S -400 200 350 -50 0 1 0 N
+X IN1 1 -600 50 200 R 50 50 1 1 I
+X OUT1 2 550 50 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# dac_bridge_1
+#
+DEF dac_bridge_1 U 0 40 Y Y 1 F N
+F0 "U" 0 0 60 H V C CNN
+F1 "dac_bridge_1" 0 150 60 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+S -400 200 350 -50 0 1 0 N
+X IN1 1 -600 50 200 R 50 50 1 1 I
+X OUT1 2 550 50 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# eSim_GND
+#
+DEF eSim_GND #PWR 0 0 Y Y 1 F P
+F0 "#PWR" 0 -250 50 H I C CNN
+F1 "eSim_GND" 0 -150 50 H V C CNN
+F2 "" 0 0 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+DRAW
+P 6 0 1 0 0 0 0 -50 50 -50 0 -100 -50 -50 0 -50 N
+X GND 1 0 0 0 D 50 50 1 1 W N
+ENDDRAW
+ENDDEF
+#
+# lm_741
+#
+DEF lm_741 X 0 40 Y Y 1 F N
+F0 "X" -200 0 60 H V C CNN
+F1 "lm_741" -100 -250 60 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+P 4 0 1 0 -350 350 350 0 -350 -350 -350 350 N
+X off_null 1 -50 400 200 D 50 38 1 1 I
+X inv 2 -550 150 200 R 50 38 1 1 I
+X non_inv 3 -550 -100 200 R 50 38 1 1 I
+X v_neg 4 -150 -450 200 U 50 38 1 1 I
+X off_null 5 50 350 200 D 50 38 1 1 I
+X out 6 550 0 200 L 50 38 1 1 O
+X v_pos 7 -150 450 200 D 50 38 1 1 I
+X NC 8 150 -300 200 U 50 38 1 1 N
+ENDDRAW
+ENDDEF
+#
+# plot_v1
+#
+DEF plot_v1 U 0 40 Y Y 1 F N
+F0 "U" 0 500 60 H V C CNN
+F1 "plot_v1" 200 350 60 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+C 0 500 100 0 1 0 N
+X ~ ~ 0 200 200 U 50 50 1 1 I
+ENDDRAW
+ENDDEF
+#
+# pulse
+#
+DEF pulse v 0 40 Y Y 1 F N
+F0 "v" -200 100 60 H V C CNN
+F1 "pulse" -200 -50 60 H V C CNN
+F2 "R1" -300 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+$FPLIST
+ 1_pin
+$ENDFPLIST
+DRAW
+A -25 -450 501 928 871 0 1 0 N -50 50 0 50
+A 25 400 451 -931 -868 0 1 0 N 0 -50 50 -50
+A 75 600 551 -926 -873 0 1 0 N 50 50 100 50
+A 350 0 403 -1728 1728 0 1 0 N -50 -50 -50 50
+A 450 0 453 1736 -1736 0 1 0 N 0 50 0 -50
+A 600 0 552 -1748 1748 0 1 0 N 50 -50 50 50
+C 0 0 150 0 1 0 N
+X + 1 0 450 300 D 50 50 1 1 P
+X - 2 0 -450 300 U 50 50 1 1 P
+ENDDRAW
+ENDDEF
+#
+# pwmdecrement
+#
+DEF pwmdecrement U 0 40 Y Y 1 F N
+F0 "U" 2850 1800 60 H V C CNN
+F1 "pwmdecrement" 2850 2000 60 H V C CNN
+F2 "" 2850 1950 60 H V C CNN
+F3 "" 2850 1950 60 H V C CNN
+DRAW
+S 2550 2100 3150 1600 0 1 0 N
+X in1 1 2350 1900 200 R 50 50 1 1 I
+X in2 2 2350 1800 200 R 50 50 1 1 I
+X out1 3 3350 1900 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+#End Library
diff --git a/Examples/NGHDL_Examples/PWM_Decremental/PWM_Decremental.cir b/Examples/NGHDL_Examples/PWM_Decremental/PWM_Decremental.cir
new file mode 100644
index 00000000..e4ef6256
--- /dev/null
+++ b/Examples/NGHDL_Examples/PWM_Decremental/PWM_Decremental.cir
@@ -0,0 +1,26 @@
+* /home/saurabh/eSim-Workspace/PWM_Decremental/PWM_Decremental.cir
+
+* EESchema Netlist Version 1.1 (Spice format) creation date: Thu Nov 14 23:21:31 2019
+
+* To exclude a component from the Spice Netlist add [Spice_Netlist_Enabled] user FIELD set to: N
+* To reorder the component spice node sequence add [Spice_Node_Sequence] user FIELD and define sequence: 2,1,0
+
+* Sheet Name: /
+v2 Net-_X1-Pad7_ GND 9v
+U3 D plot_v1
+X1 ? rc1 pwl_IN Net-_X1-Pad4_ ? D Net-_X1-Pad7_ ? lm_741
+R1 Q rc1 1k
+U7 rc1 plot_v1
+C1 GND rc1 1u
+U8 Net-_U2-Pad3_ Q dac_bridge_1
+U9 Q plot_v1
+U6 clk plot_v1
+v4 Net-_U4-Pad1_ GND pulse
+U5 D Net-_U2-Pad2_ adc_bridge_1
+U4 Net-_U4-Pad1_ clk adc_bridge_1
+v3 Net-_X1-Pad4_ GND -9v
+U1 pwl_IN plot_v1
+v1 pwl_IN GND 3
+U2 clk Net-_U2-Pad2_ Net-_U2-Pad3_ pwmdecrement
+
+.end
diff --git a/Examples/NGHDL_Examples/PWM_Decremental/PWM_Decremental.cir.out b/Examples/NGHDL_Examples/PWM_Decremental/PWM_Decremental.cir.out
new file mode 100644
index 00000000..0f70a899
--- /dev/null
+++ b/Examples/NGHDL_Examples/PWM_Decremental/PWM_Decremental.cir.out
@@ -0,0 +1,45 @@
+* /home/saurabh/esim-workspace/pwm_decremental/pwm_decremental.cir
+
+.include lm_741.sub
+v2 net-_x1-pad7_ gnd 9v
+* u3 d plot_v1
+x1 ? rc1 pwl_in net-_x1-pad4_ ? d net-_x1-pad7_ ? lm_741
+r1 q rc1 1k
+* u7 rc1 plot_v1
+c1 gnd rc1 0.1u
+* u8 net-_u2-pad3_ q dac_bridge_1
+* u9 q plot_v1
+* u6 clk plot_v1
+v4 net-_u4-pad1_ gnd pulse(0 5 10u 10u 20u 0.5m 1m)
+* u5 d net-_u2-pad2_ adc_bridge_1
+* u4 net-_u4-pad1_ clk adc_bridge_1
+v3 net-_x1-pad4_ gnd -9v
+* u1 pwl_in plot_v1
+v1 pwl_in gnd 3
+* u2 clk net-_u2-pad2_ net-_u2-pad3_ pwmdecrement
+a1 [net-_u2-pad3_ ] [q ] u8
+a2 [d ] [net-_u2-pad2_ ] u5
+a3 [net-_u4-pad1_ ] [clk ] u4
+a4 [clk ] [net-_u2-pad2_ ] [net-_u2-pad3_ ] u2
+* Schematic Name: dac_bridge_1, NgSpice Name: dac_bridge
+.model u8 dac_bridge(out_undef=0.5 out_low=0.0 out_high=5.0 t_rise=1.0e-9 t_fall=1.0e-9 input_load=1.0e-12 )
+* Schematic Name: adc_bridge_1, NgSpice Name: adc_bridge
+.model u5 adc_bridge(fall_delay=1.0e-9 in_high=2.0 rise_delay=1.0e-9 in_low=1.0 )
+* Schematic Name: adc_bridge_1, NgSpice Name: adc_bridge
+.model u4 adc_bridge(fall_delay=1.0e-9 in_high=2.0 rise_delay=1.0e-9 in_low=1.0 )
+* Schematic Name: pwmdecrement, NgSpice Name: pwmdecrement
+.model u2 pwmdecrement(fall_delay=1.0e-9 input_load=1.0e-12 rise_delay=1.0e-9 instance_id=1 stop_time=240e-3 )
+.tran 1e-03 240e-03 0e-00
+
+* Control Statements
+.control
+run
+print allv > plot_data_v.txt
+print alli > plot_data_i.txt
+plot v(d)
+plot v(rc1)
+plot v(q)
+plot v(clk)
+plot v(pwl_in)
+.endc
+.end
diff --git a/Examples/NGHDL_Examples/PWM_Decremental/PWM_Decremental.pro b/Examples/NGHDL_Examples/PWM_Decremental/PWM_Decremental.pro
new file mode 100644
index 00000000..584970ee
--- /dev/null
+++ b/Examples/NGHDL_Examples/PWM_Decremental/PWM_Decremental.pro
@@ -0,0 +1,73 @@
+update=Thu Nov 14 23:19:57 2019
+version=1
+last_client=eeschema
+[general]
+version=1
+RootSch=
+BoardNm=
+[pcbnew]
+version=1
+LastNetListRead=
+UseCmpFile=1
+PadDrill=0.600000000000
+PadDrillOvalY=0.600000000000
+PadSizeH=1.500000000000
+PadSizeV=1.500000000000
+PcbTextSizeV=1.500000000000
+PcbTextSizeH=1.500000000000
+PcbTextThickness=0.300000000000
+ModuleTextSizeV=1.000000000000
+ModuleTextSizeH=1.000000000000
+ModuleTextSizeThickness=0.150000000000
+SolderMaskClearance=0.000000000000
+SolderMaskMinWidth=0.000000000000
+DrawSegmentWidth=0.200000000000
+BoardOutlineThickness=0.100000000000
+ModuleOutlineThickness=0.150000000000
+[cvpcb]
+version=1
+NetIExt=net
+[eeschema]
+version=1
+LibDir=
+[eeschema/libraries]
+LibName1=power
+LibName2=device
+LibName3=switches
+LibName4=relays
+LibName5=motors
+LibName6=transistors
+LibName7=conn
+LibName8=linear
+LibName9=regul
+LibName10=74xx
+LibName11=cmos4000
+LibName12=adc-dac
+LibName13=memory
+LibName14=xilinx
+LibName15=microcontrollers
+LibName16=dsp
+LibName17=microchip
+LibName18=analog_switches
+LibName19=motorola
+LibName20=texas
+LibName21=intel
+LibName22=audio
+LibName23=interface
+LibName24=digital-audio
+LibName25=philips
+LibName26=display
+LibName27=cypress
+LibName28=siliconi
+LibName29=eSim_Analog
+LibName30=eSim_Devices
+LibName31=eSim_Digital
+LibName32=eSim_Hybrid
+LibName33=eSim_Miscellaneous
+LibName34=eSim_Power
+LibName35=eSim_Sources
+LibName36=eSim_Subckt
+LibName37=eSim_User
+LibName38=eSim_Plot
+LibName39=eSim_PSpice
+LibName40=/home/saurabh/eSim_kicad
diff --git a/Examples/NGHDL_Examples/PWM_Decremental/PWM_Decremental.proj b/Examples/NGHDL_Examples/PWM_Decremental/PWM_Decremental.proj
new file mode 100644
index 00000000..1dbaf32b
--- /dev/null
+++ b/Examples/NGHDL_Examples/PWM_Decremental/PWM_Decremental.proj
@@ -0,0 +1 @@
+schematicFile PWM_Decremental.sch
diff --git a/Examples/NGHDL_Examples/PWM_Decremental/PWM_Decremental.sch b/Examples/NGHDL_Examples/PWM_Decremental/PWM_Decremental.sch
new file mode 100644
index 00000000..0b75c70c
--- /dev/null
+++ b/Examples/NGHDL_Examples/PWM_Decremental/PWM_Decremental.sch
@@ -0,0 +1,435 @@
+EESchema Schematic File Version 2
+LIBS:power
+LIBS:device
+LIBS:switches
+LIBS:relays
+LIBS:motors
+LIBS:transistors
+LIBS:conn
+LIBS:linear
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_User
+LIBS:eSim_Plot
+LIBS:eSim_PSpice
+LIBS:eSim_kicad
+LIBS:PWM_Incremental-cache
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+EELAYER END
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diff --git a/Examples/NGHDL_Examples/PWM_Decremental/PWM_Decremental_Previous_Values.xml b/Examples/NGHDL_Examples/PWM_Decremental/PWM_Decremental_Previous_Values.xml
new file mode 100644
index 00000000..0d1719aa
--- /dev/null
+++ b/Examples/NGHDL_Examples/PWM_Decremental/PWM_Decremental_Previous_Values.xml
@@ -0,0 +1 @@
+<KicadtoNgspice><analysis><ac><field1 name="Lin">true</field1><field2 name="Dec">false</field2><field3 name="Oct">false</field3><field4 name="Start Frequency" /><field5 name="Stop Frequency" /><field6 name="No. of points" /><field7 name="Start Fre Combo">Hz</field7><field8 name="Stop Fre Combo">Hz</field8></ac><dc><field1 name="Source 1" /><field2 name="Start" /><field3 name="Increment" /><field4 name="Stop" /><field5 name="Operating Point">0</field5><field6 name="Start Combo">Volts or Amperes</field6><field7 name="Increment Combo">Volts or Amperes</field7><field8 name="Stop Combo">Volts or Amperes</field8><field9 name="Source 2" /><field10 name="Start" /><field11 name="Increment" /><field12 name="Stop" /><field13 name="Start Combo">Volts or Amperes</field13><field14 name="Increment Combo">Volts or Amperes</field14><field15 name="Stop Combo">Volts or Amperes</field15></dc><tran><field1 name="Start Time">0</field1><field2 name="Step Time">1</field2><field3 name="Stop Time">80</field3><field4 name="Start Combo">Sec</field4><field5 name="Step Combo">ms</field5><field6 name="Stop Combo">ms</field6></tran></analysis><source><v2 name="Source type">9v</v2><v4 name="Source type">pulse<field1 name="Initial Value">0</field1><field2 name="Pulse Value">5</field2><field3 name="Delay Time">10u</field3><field4 name="Rise Time">10u</field4><field5 name="Fall Time">20u</field5><field5 name="Pulse width">0.5m</field5><field5 name="Period">1m</field5></v4><v3 name="Source type">-9v</v3><v1 name="Source type">3</v1></source><model><u8 name="type">dac_bridge<field1 name="Enter value for input load (default=1.0e-12)" /><field2 name="Enter value for out_low (default=0.0)" /><field3 name="Enter value for out_high (default=5.0)" /><field4 name="Enter the Rise Time (default=1.0e-9)" /><field5 name="Enter the Fall Time (default=1.0e-9)" /><field6 name="Enter value for out_undef (default=0.5)" /></u8><u5 name="type">adc_bridge<field7 name="Enter Fall Delay (default=1.0e-9)" /><field8 name="Enter value for in_high (default=2.0)" /><field9 name="Enter Rise Delay (default=1.0e-9)" /><field10 name="Enter value for in_low (default=1.0)" /></u5><u4 name="type">adc_bridge<field11 name="Enter Fall Delay (default=1.0e-9)" /><field12 name="Enter value for in_high (default=2.0)" /><field13 name="Enter Rise Delay (default=1.0e-9)" /><field14 name="Enter value for in_low (default=1.0)" /></u4><u2 name="type">pwmdecrement<field15 name="Enter Fall Delay (default=1.0e-9)" /><field16 name="Enter Input Load (default=1.0e-12)" /><field17 name="Enter Rise Delay (default=1.0e-9)" /><field18 name="Enter Instance ID (Between 0-99)" /><field19 name="Enter the stop time to end the simulation (default=90e-9)">80e-3</field19></u2></model><devicemodel /><subcircuit><x1><field>/home/saurabh/Downloads/eSim-rahulp13-eSim/src/SubcircuitLibrary/lm_741</field></x1></subcircuit></KicadtoNgspice> \ No newline at end of file
diff --git a/Examples/NGHDL_Examples/PWM_Decremental/analysis b/Examples/NGHDL_Examples/PWM_Decremental/analysis
new file mode 100644
index 00000000..c4435fb9
--- /dev/null
+++ b/Examples/NGHDL_Examples/PWM_Decremental/analysis
@@ -0,0 +1 @@
+.tran 1e-03 80e-03 0e-00 \ No newline at end of file
diff --git a/Examples/NGHDL_Examples/PWM_Decremental/lm_741-cache.lib b/Examples/NGHDL_Examples/PWM_Decremental/lm_741-cache.lib
new file mode 100644
index 00000000..04e3fecd
--- /dev/null
+++ b/Examples/NGHDL_Examples/PWM_Decremental/lm_741-cache.lib
@@ -0,0 +1,119 @@
+EESchema-LIBRARY Version 2.3
+#encoding utf-8
+#
+# PORT
+#
+DEF PORT U 0 40 Y Y 26 F N
+F0 "U" 50 100 30 H V C CNN
+F1 "PORT" 0 0 30 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+A 325 225 285 -1421 -1278 0 1 0 N 100 50 150 0
+A 376 -275 356 1294 1408 0 1 0 N 150 0 100 -50
+S -100 50 100 -50 0 1 0 N
+X ~ 1 250 0 100 L 30 30 1 1 B
+X ~ 2 250 0 100 L 30 30 2 1 B
+X ~ 3 250 0 100 L 30 30 3 1 B
+X ~ 4 250 0 100 L 30 30 4 1 B
+X ~ 5 250 0 100 L 30 30 5 1 B
+X ~ 6 250 0 100 L 30 30 6 1 B
+X ~ 7 250 0 100 L 30 30 7 1 B
+X ~ 8 250 0 100 L 30 30 8 1 B
+X ~ 9 250 0 100 L 30 30 9 1 B
+X ~ 10 250 0 100 L 30 30 10 1 B
+X ~ 11 250 0 100 L 30 30 11 1 B
+X ~ 12 250 0 100 L 30 30 12 1 B
+X ~ 13 250 0 100 L 30 30 13 1 B
+X ~ 14 250 0 100 L 30 30 14 1 B
+X ~ 15 250 0 100 L 30 30 15 1 B
+X ~ 16 250 0 100 L 30 30 16 1 B
+X ~ 17 250 0 100 L 30 30 17 1 B
+X ~ 18 250 0 100 L 30 30 18 1 B
+X ~ 19 250 0 100 L 30 30 19 1 B
+X ~ 20 250 0 100 L 30 30 20 1 B
+X ~ 21 250 0 100 L 30 30 21 1 B
+X ~ 22 250 0 100 L 30 30 22 1 B
+X ~ 23 250 0 100 L 30 30 23 1 B
+X ~ 24 250 0 100 L 30 30 24 1 B
+X ~ 25 250 0 100 L 30 30 25 1 B
+X ~ 26 250 0 100 L 30 30 26 1 B
+ENDDRAW
+ENDDEF
+#
+# eSim_C
+#
+DEF eSim_C C 0 10 N Y 1 F N
+F0 "C" 25 100 50 H V L CNN
+F1 "eSim_C" 25 -100 50 H V L CNN
+F2 "" 38 -150 30 H V C CNN
+F3 "" 0 0 60 H V C CNN
+$FPLIST
+ C_*
+$ENDFPLIST
+DRAW
+P 2 0 1 20 -80 -30 80 -30 N
+P 2 0 1 20 -80 30 80 30 N
+X ~ 1 0 150 110 D 40 40 1 1 P
+X ~ 2 0 -150 110 U 40 40 1 1 P
+ENDDRAW
+ENDDEF
+#
+# eSim_NPN
+#
+DEF eSim_NPN Q 0 0 Y N 1 F N
+F0 "Q" -100 50 50 H V R CNN
+F1 "eSim_NPN" -50 150 50 H V R CNN
+F2 "" 200 100 29 H V C CNN
+F3 "" 0 0 60 H V C CNN
+ALIAS BC547 Q2N2222
+DRAW
+C 50 0 111 0 1 10 N
+P 2 0 1 0 25 25 100 100 N
+P 3 0 1 0 25 -25 100 -100 100 -100 N
+P 3 0 1 20 25 75 25 -75 25 -75 N
+P 5 0 1 0 50 -70 70 -50 90 -90 50 -70 50 -70 F
+X C 1 100 200 100 D 50 50 1 1 C
+X B 2 -200 0 225 R 50 50 1 1 I
+X E 3 100 -200 100 U 50 50 1 1 E
+ENDDRAW
+ENDDEF
+#
+# eSim_PNP
+#
+DEF eSim_PNP Q 0 0 Y N 1 F N
+F0 "Q" -100 50 50 H V R CNN
+F1 "eSim_PNP" -50 150 50 H V R CNN
+F2 "" 200 100 29 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+C 50 0 111 0 1 10 N
+P 2 0 1 0 25 25 100 100 N
+P 3 0 1 0 25 -25 100 -100 100 -100 N
+P 3 0 1 20 25 75 25 -75 25 -75 N
+P 5 0 1 0 90 -70 70 -90 50 -50 90 -70 90 -70 F
+X C 1 100 200 100 D 50 50 1 1 C
+X B 2 -200 0 225 R 50 50 1 1 I
+X E 3 100 -200 100 U 50 50 1 1 E
+ENDDRAW
+ENDDEF
+#
+# eSim_R
+#
+DEF eSim_R R 0 0 N Y 1 F N
+F0 "R" 50 130 50 H V C CNN
+F1 "eSim_R" 50 50 50 H V C CNN
+F2 "" 50 -20 30 H V C CNN
+F3 "" 50 50 30 V V C CNN
+$FPLIST
+ R_*
+ Resistor_*
+$ENDFPLIST
+DRAW
+S 150 10 -50 90 0 1 10 N
+X ~ 1 -100 50 50 R 60 60 1 1 P
+X ~ 2 200 50 50 L 60 60 1 1 P
+ENDDRAW
+ENDDEF
+#
+#End Library
diff --git a/Examples/NGHDL_Examples/PWM_Decremental/lm_741.cir b/Examples/NGHDL_Examples/PWM_Decremental/lm_741.cir
new file mode 100644
index 00000000..4a5917ea
--- /dev/null
+++ b/Examples/NGHDL_Examples/PWM_Decremental/lm_741.cir
@@ -0,0 +1,43 @@
+* C:\Users\malli\eSim\src\SubcircuitLibrary\lm_741\lm_741.cir
+
+* EESchema Netlist Version 1.1 (Spice format) creation date: 05/25/19 19:37:28
+
+* To exclude a component from the Spice Netlist add [Spice_Netlist_Enabled] user FIELD set to: N
+* To reorder the component spice node sequence add [Spice_Node_Sequence] user FIELD and define sequence: 2,1,0
+
+* Sheet Name: /
+Q1 Net-_Q1-Pad1_ Net-_Q1-Pad2_ Net-_Q1-Pad3_ eSim_NPN
+Q2 Net-_Q1-Pad1_ Net-_Q2-Pad2_ Net-_Q2-Pad3_ eSim_NPN
+Q6 Net-_Q3-Pad2_ Net-_Q13-Pad1_ Net-_Q1-Pad3_ eSim_PNP
+Q5 Net-_C1-Pad2_ Net-_Q13-Pad1_ Net-_Q2-Pad3_ eSim_PNP
+Q3 Net-_Q10-Pad3_ Net-_Q3-Pad2_ Net-_Q3-Pad3_ eSim_NPN
+Q4 Net-_Q1-Pad1_ Net-_Q1-Pad1_ Net-_Q10-Pad3_ eSim_PNP
+Q9 Net-_Q13-Pad1_ Net-_Q1-Pad1_ Net-_Q10-Pad3_ eSim_PNP
+Q8 Net-_C1-Pad2_ Net-_Q3-Pad3_ Net-_Q8-Pad3_ eSim_NPN
+Q7 Net-_Q3-Pad2_ Net-_Q3-Pad3_ Net-_Q7-Pad3_ eSim_NPN
+R1 Net-_Q7-Pad3_ Net-_Q12-Pad3_ 1k
+R2 Net-_Q3-Pad3_ Net-_Q12-Pad3_ 50k
+R3 Net-_Q8-Pad3_ Net-_Q12-Pad3_ 1k
+Q12 Net-_Q12-Pad1_ Net-_Q12-Pad1_ Net-_Q12-Pad3_ eSim_NPN
+Q13 Net-_Q13-Pad1_ Net-_Q12-Pad1_ Net-_Q13-Pad3_ eSim_NPN
+R4 Net-_Q13-Pad3_ Net-_Q12-Pad3_ 5k
+R11 Net-_Q10-Pad1_ Net-_Q12-Pad1_ 39k
+Q10 Net-_Q10-Pad1_ Net-_Q10-Pad1_ Net-_Q10-Pad3_ eSim_PNP
+Q11 Net-_C1-Pad1_ Net-_Q10-Pad1_ Net-_Q10-Pad3_ eSim_PNP
+Q14 Net-_C1-Pad1_ Net-_Q14-Pad2_ Net-_Q14-Pad3_ eSim_NPN
+R8 Net-_C1-Pad1_ Net-_Q14-Pad2_ 4.5k
+R7 Net-_Q14-Pad3_ Net-_Q14-Pad2_ 7.5k
+C1 Net-_C1-Pad1_ Net-_C1-Pad2_ 30p
+Q16 Net-_Q14-Pad3_ Net-_C1-Pad2_ Net-_Q15-Pad2_ eSim_NPN
+Q15 Net-_Q14-Pad3_ Net-_Q15-Pad2_ Net-_Q15-Pad3_ eSim_NPN
+R5 Net-_Q15-Pad2_ Net-_Q12-Pad3_ 50k
+R6 Net-_Q15-Pad3_ Net-_Q12-Pad3_ 50
+Q17 Net-_C1-Pad2_ Net-_Q15-Pad3_ Net-_Q12-Pad3_ eSim_NPN
+Q18 Net-_Q10-Pad3_ Net-_C1-Pad1_ Net-_Q18-Pad3_ eSim_NPN
+Q20 Net-_C1-Pad1_ Net-_Q18-Pad3_ Net-_Q20-Pad3_ eSim_NPN
+R9 Net-_Q18-Pad3_ Net-_Q20-Pad3_ 25
+R10 Net-_Q20-Pad3_ Net-_Q19-Pad3_ 50
+Q19 Net-_Q12-Pad3_ Net-_Q14-Pad3_ Net-_Q19-Pad3_ eSim_PNP
+U1 Net-_Q7-Pad3_ Net-_Q2-Pad2_ Net-_Q1-Pad2_ Net-_Q12-Pad3_ Net-_Q8-Pad3_ Net-_Q20-Pad3_ Net-_Q10-Pad3_ ? PORT
+
+.end
diff --git a/Examples/NGHDL_Examples/PWM_Decremental/lm_741.cir.out b/Examples/NGHDL_Examples/PWM_Decremental/lm_741.cir.out
new file mode 100644
index 00000000..a00bd86a
--- /dev/null
+++ b/Examples/NGHDL_Examples/PWM_Decremental/lm_741.cir.out
@@ -0,0 +1,46 @@
+* c:\users\malli\esim\src\subcircuitlibrary\lm_741\lm_741.cir
+
+.include npn_1.lib
+.include pnp_1.lib
+q1 net-_q1-pad1_ net-_q1-pad2_ net-_q1-pad3_ npn_1
+q2 net-_q1-pad1_ net-_q2-pad2_ net-_q2-pad3_ npn_1
+q6 net-_q3-pad2_ net-_q13-pad1_ net-_q1-pad3_ pnp_1
+q5 net-_c1-pad2_ net-_q13-pad1_ net-_q2-pad3_ pnp_1
+q3 net-_q10-pad3_ net-_q3-pad2_ net-_q3-pad3_ npn_1
+q4 net-_q1-pad1_ net-_q1-pad1_ net-_q10-pad3_ pnp_1
+q9 net-_q13-pad1_ net-_q1-pad1_ net-_q10-pad3_ pnp_1
+q8 net-_c1-pad2_ net-_q3-pad3_ net-_q8-pad3_ npn_1
+q7 net-_q3-pad2_ net-_q3-pad3_ net-_q7-pad3_ npn_1
+r1 net-_q7-pad3_ net-_q12-pad3_ 1k
+r2 net-_q3-pad3_ net-_q12-pad3_ 50k
+r3 net-_q8-pad3_ net-_q12-pad3_ 1k
+q12 net-_q12-pad1_ net-_q12-pad1_ net-_q12-pad3_ npn_1
+q13 net-_q13-pad1_ net-_q12-pad1_ net-_q13-pad3_ npn_1
+r4 net-_q13-pad3_ net-_q12-pad3_ 5k
+r11 net-_q10-pad1_ net-_q12-pad1_ 39k
+q10 net-_q10-pad1_ net-_q10-pad1_ net-_q10-pad3_ pnp_1
+q11 net-_c1-pad1_ net-_q10-pad1_ net-_q10-pad3_ pnp_1
+q14 net-_c1-pad1_ net-_q14-pad2_ net-_q14-pad3_ npn_1
+r8 net-_c1-pad1_ net-_q14-pad2_ 4.5k
+r7 net-_q14-pad3_ net-_q14-pad2_ 7.5k
+c1 net-_c1-pad1_ net-_c1-pad2_ 30p
+q16 net-_q14-pad3_ net-_c1-pad2_ net-_q15-pad2_ npn_1
+q15 net-_q14-pad3_ net-_q15-pad2_ net-_q15-pad3_ npn_1
+r5 net-_q15-pad2_ net-_q12-pad3_ 50k
+r6 net-_q15-pad3_ net-_q12-pad3_ 50
+q17 net-_c1-pad2_ net-_q15-pad3_ net-_q12-pad3_ npn_1
+q18 net-_q10-pad3_ net-_c1-pad1_ net-_q18-pad3_ npn_1
+q20 net-_c1-pad1_ net-_q18-pad3_ net-_q20-pad3_ npn_1
+r9 net-_q18-pad3_ net-_q20-pad3_ 25
+r10 net-_q20-pad3_ net-_q19-pad3_ 50
+q19 net-_q12-pad3_ net-_q14-pad3_ net-_q19-pad3_ pnp_1
+* u1 net-_q7-pad3_ net-_q2-pad2_ net-_q1-pad2_ net-_q12-pad3_ net-_q8-pad3_ net-_q20-pad3_ net-_q10-pad3_ ? port
+.tran 0e-00 0e-00 0e-00
+
+* Control Statements
+.control
+run
+print allv > plot_data_v.txt
+print alli > plot_data_i.txt
+.endc
+.end
diff --git a/Examples/NGHDL_Examples/PWM_Decremental/lm_741.pro b/Examples/NGHDL_Examples/PWM_Decremental/lm_741.pro
new file mode 100644
index 00000000..cbe83f35
--- /dev/null
+++ b/Examples/NGHDL_Examples/PWM_Decremental/lm_741.pro
@@ -0,0 +1,45 @@
+update=Fri Jun 7 21:53:51 2019
+version=1
+last_client=eeschema
+[general]
+version=1
+RootSch=
+BoardNm=
+[pcbnew]
+version=1
+LastNetListRead=
+UseCmpFile=1
+PadDrill=0.600000000000
+PadDrillOvalY=0.600000000000
+PadSizeH=1.500000000000
+PadSizeV=1.500000000000
+PcbTextSizeV=1.500000000000
+PcbTextSizeH=1.500000000000
+PcbTextThickness=0.300000000000
+ModuleTextSizeV=1.000000000000
+ModuleTextSizeH=1.000000000000
+ModuleTextSizeThickness=0.150000000000
+SolderMaskClearance=0.000000000000
+SolderMaskMinWidth=0.000000000000
+DrawSegmentWidth=0.200000000000
+BoardOutlineThickness=0.100000000000
+ModuleOutlineThickness=0.150000000000
+[cvpcb]
+version=1
+NetIExt=net
+[eeschema]
+version=1
+LibDir=
+[eeschema/libraries]
+LibName1=power
+LibName2=eSim_Analog
+LibName3=eSim_Devices
+LibName4=eSim_Digital
+LibName5=eSim_Hybrid
+LibName6=eSim_Miscellaneous
+LibName7=eSim_Plot
+LibName8=eSim_Power
+LibName9=eSim_PSpice
+LibName10=eSim_Sources
+LibName11=eSim_Subckt
+LibName12=eSim_User
diff --git a/Examples/NGHDL_Examples/PWM_Decremental/lm_741.sch b/Examples/NGHDL_Examples/PWM_Decremental/lm_741.sch
new file mode 100644
index 00000000..b017fd2b
--- /dev/null
+++ b/Examples/NGHDL_Examples/PWM_Decremental/lm_741.sch
@@ -0,0 +1,697 @@
+EESchema Schematic File Version 2
+LIBS:power
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Plot
+LIBS:eSim_Power
+LIBS:eSim_PSpice
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_User
+LIBS:lm_741-cache
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+$Comp
+L eSim_NPN Q1
+U 1 1 5CE90A7B
+P 2650 2700
+F 0 "Q1" H 2550 2750 50 0000 R CNN
+F 1 "eSim_NPN" H 2600 2850 50 0000 R CNN
+F 2 "" H 2850 2800 29 0000 C CNN
+F 3 "" H 2650 2700 60 0000 C CNN
+ 1 2650 2700
+ 1 0 0 -1
+$EndComp
+$Comp
+L eSim_NPN Q2
+U 1 1 5CE90A7C
+P 4300 2700
+F 0 "Q2" H 4200 2750 50 0000 R CNN
+F 1 "eSim_NPN" H 4250 2850 50 0000 R CNN
+F 2 "" H 4500 2800 29 0000 C CNN
+F 3 "" H 4300 2700 60 0000 C CNN
+ 1 4300 2700
+ -1 0 0 -1
+$EndComp
+$Comp
+L eSim_PNP Q6
+U 1 1 5CE90A7D
+P 3000 3200
+F 0 "Q6" H 2900 3250 50 0000 R CNN
+F 1 "eSim_PNP" H 2950 3350 50 0000 R CNN
+F 2 "" H 3200 3300 29 0000 C CNN
+F 3 "" H 3000 3200 60 0000 C CNN
+ 1 3000 3200
+ -1 0 0 1
+$EndComp
+$Comp
+L eSim_PNP Q5
+U 1 1 5CE90A7E
+P 3950 3200
+F 0 "Q5" H 3850 3250 50 0000 R CNN
+F 1 "eSim_PNP" H 3900 3350 50 0000 R CNN
+F 2 "" H 4150 3300 29 0000 C CNN
+F 3 "" H 3950 3200 60 0000 C CNN
+ 1 3950 3200
+ 1 0 0 1
+$EndComp
+$Comp
+L eSim_NPN Q3
+U 1 1 5CE90A7F
+P 3300 4000
+F 0 "Q3" H 3200 4050 50 0000 R CNN
+F 1 "eSim_NPN" H 3250 4150 50 0000 R CNN
+F 2 "" H 3500 4100 29 0000 C CNN
+F 3 "" H 3300 4000 60 0000 C CNN
+ 1 3300 4000
+ 1 0 0 -1
+$EndComp
+$Comp
+L eSim_PNP Q4
+U 1 1 5CE90A80
+P 3850 2000
+F 0 "Q4" H 3750 2050 50 0000 R CNN
+F 1 "eSim_PNP" H 3800 2150 50 0000 R CNN
+F 2 "" H 4050 2100 29 0000 C CNN
+F 3 "" H 3850 2000 60 0000 C CNN
+ 1 3850 2000
+ -1 0 0 1
+$EndComp
+$Comp
+L eSim_PNP Q9
+U 1 1 5CE90A81
+P 5200 2000
+F 0 "Q9" H 5100 2050 50 0000 R CNN
+F 1 "eSim_PNP" H 5150 2150 50 0000 R CNN
+F 2 "" H 5400 2100 29 0000 C CNN
+F 3 "" H 5200 2000 60 0000 C CNN
+ 1 5200 2000
+ 1 0 0 1
+$EndComp
+$Comp
+L eSim_NPN Q8
+U 1 1 5CE90A82
+P 3950 4600
+F 0 "Q8" H 3850 4650 50 0000 R CNN
+F 1 "eSim_NPN" H 3900 4750 50 0000 R CNN
+F 2 "" H 4150 4700 29 0000 C CNN
+F 3 "" H 3950 4600 60 0000 C CNN
+ 1 3950 4600
+ 1 0 0 -1
+$EndComp
+$Comp
+L eSim_NPN Q7
+U 1 1 5CE90A83
+P 3000 4600
+F 0 "Q7" H 2900 4650 50 0000 R CNN
+F 1 "eSim_NPN" H 2950 4750 50 0000 R CNN
+F 2 "" H 3200 4700 29 0000 C CNN
+F 3 "" H 3000 4600 60 0000 C CNN
+ 1 3000 4600
+ -1 0 0 -1
+$EndComp
+$Comp
+L eSim_R R1
+U 1 1 5CE90A84
+P 2850 5200
+F 0 "R1" H 2900 5330 50 0000 C CNN
+F 1 "1k" H 2900 5250 50 0000 C CNN
+F 2 "" H 2900 5180 30 0000 C CNN
+F 3 "" V 2900 5250 30 0000 C CNN
+ 1 2850 5200
+ 0 1 1 0
+$EndComp
+$Comp
+L eSim_R R2
+U 1 1 5CE90A85
+P 3550 5200
+F 0 "R2" H 3600 5330 50 0000 C CNN
+F 1 "50k" H 3600 5250 50 0000 C CNN
+F 2 "" H 3600 5180 30 0000 C CNN
+F 3 "" V 3600 5250 30 0000 C CNN
+ 1 3550 5200
+ 0 1 1 0
+$EndComp
+$Comp
+L eSim_R R3
+U 1 1 5CE90A86
+P 4000 5200
+F 0 "R3" H 4050 5330 50 0000 C CNN
+F 1 "1k" H 4050 5250 50 0000 C CNN
+F 2 "" H 4050 5180 30 0000 C CNN
+F 3 "" V 4050 5250 30 0000 C CNN
+ 1 4000 5200
+ 0 1 1 0
+$EndComp
+$Comp
+L eSim_NPN Q12
+U 1 1 5CE90A87
+P 6300 4700
+F 0 "Q12" H 6200 4750 50 0000 R CNN
+F 1 "eSim_NPN" H 6250 4850 50 0000 R CNN
+F 2 "" H 6500 4800 29 0000 C CNN
+F 3 "" H 6300 4700 60 0000 C CNN
+ 1 6300 4700
+ 1 0 0 -1
+$EndComp
+$Comp
+L eSim_NPN Q13
+U 1 1 5CE90A88
+P 5400 4700
+F 0 "Q13" H 5300 4750 50 0000 R CNN
+F 1 "eSim_NPN" H 5350 4850 50 0000 R CNN
+F 2 "" H 5600 4800 29 0000 C CNN
+F 3 "" H 5400 4700 60 0000 C CNN
+ 1 5400 4700
+ -1 0 0 -1
+$EndComp
+$Comp
+L eSim_R R4
+U 1 1 5CE90A89
+P 5250 5200
+F 0 "R4" H 5300 5330 50 0000 C CNN
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diff --git a/Examples/NGHDL_Examples/PWM_Decremental/lm_741.sub b/Examples/NGHDL_Examples/PWM_Decremental/lm_741.sub
new file mode 100644
index 00000000..fa8d27b1
--- /dev/null
+++ b/Examples/NGHDL_Examples/PWM_Decremental/lm_741.sub
@@ -0,0 +1,40 @@
+* Subcircuit lm_741
+.subckt lm_741 net-_q7-pad3_ net-_q2-pad2_ net-_q1-pad2_ net-_q12-pad3_ net-_q8-pad3_ net-_q20-pad3_ net-_q10-pad3_ ?
+* c:\users\malli\esim\src\subcircuitlibrary\lm_741\lm_741.cir
+.include npn_1.lib
+.include pnp_1.lib
+q1 net-_q1-pad1_ net-_q1-pad2_ net-_q1-pad3_ npn_1
+q2 net-_q1-pad1_ net-_q2-pad2_ net-_q2-pad3_ npn_1
+q6 net-_q3-pad2_ net-_q13-pad1_ net-_q1-pad3_ pnp_1
+q5 net-_c1-pad2_ net-_q13-pad1_ net-_q2-pad3_ pnp_1
+q3 net-_q10-pad3_ net-_q3-pad2_ net-_q3-pad3_ npn_1
+q4 net-_q1-pad1_ net-_q1-pad1_ net-_q10-pad3_ pnp_1
+q9 net-_q13-pad1_ net-_q1-pad1_ net-_q10-pad3_ pnp_1
+q8 net-_c1-pad2_ net-_q3-pad3_ net-_q8-pad3_ npn_1
+q7 net-_q3-pad2_ net-_q3-pad3_ net-_q7-pad3_ npn_1
+r1 net-_q7-pad3_ net-_q12-pad3_ 1k
+r2 net-_q3-pad3_ net-_q12-pad3_ 50k
+r3 net-_q8-pad3_ net-_q12-pad3_ 1k
+q12 net-_q12-pad1_ net-_q12-pad1_ net-_q12-pad3_ npn_1
+q13 net-_q13-pad1_ net-_q12-pad1_ net-_q13-pad3_ npn_1
+r4 net-_q13-pad3_ net-_q12-pad3_ 5k
+r11 net-_q10-pad1_ net-_q12-pad1_ 39k
+q10 net-_q10-pad1_ net-_q10-pad1_ net-_q10-pad3_ pnp_1
+q11 net-_c1-pad1_ net-_q10-pad1_ net-_q10-pad3_ pnp_1
+q14 net-_c1-pad1_ net-_q14-pad2_ net-_q14-pad3_ npn_1
+r8 net-_c1-pad1_ net-_q14-pad2_ 4.5k
+r7 net-_q14-pad3_ net-_q14-pad2_ 7.5k
+c1 net-_c1-pad1_ net-_c1-pad2_ 30p
+q16 net-_q14-pad3_ net-_c1-pad2_ net-_q15-pad2_ npn_1
+q15 net-_q14-pad3_ net-_q15-pad2_ net-_q15-pad3_ npn_1
+r5 net-_q15-pad2_ net-_q12-pad3_ 50k
+r6 net-_q15-pad3_ net-_q12-pad3_ 50
+q17 net-_c1-pad2_ net-_q15-pad3_ net-_q12-pad3_ npn_1
+q18 net-_q10-pad3_ net-_c1-pad1_ net-_q18-pad3_ npn_1
+q20 net-_c1-pad1_ net-_q18-pad3_ net-_q20-pad3_ npn_1
+r9 net-_q18-pad3_ net-_q20-pad3_ 25
+r10 net-_q20-pad3_ net-_q19-pad3_ 50
+q19 net-_q12-pad3_ net-_q14-pad3_ net-_q19-pad3_ pnp_1
+* Control Statements
+
+.ends lm_741 \ No newline at end of file
diff --git a/Examples/NGHDL_Examples/PWM_Decremental/lm_741_Previous_Values.xml b/Examples/NGHDL_Examples/PWM_Decremental/lm_741_Previous_Values.xml
new file mode 100644
index 00000000..b61322bb
--- /dev/null
+++ b/Examples/NGHDL_Examples/PWM_Decremental/lm_741_Previous_Values.xml
@@ -0,0 +1 @@
+<KicadtoNgspice><source /><model /><devicemodel><q1><field>C:/Users/malli/eSim/src/deviceModelLibrary/Transistor/npn_1.lib</field></q1><q20><field>C:/Users/malli/eSim/src/deviceModelLibrary/Transistor/npn_1.lib</field></q20><q3><field>C:/Users/malli/eSim/src/deviceModelLibrary/Transistor/npn_1.lib</field></q3><q2><field>C:/Users/malli/eSim/src/deviceModelLibrary/Transistor/npn_1.lib</field></q2><q5><field>C:/Users/malli/eSim/src/deviceModelLibrary/Transistor/pnp_1.lib</field></q5><q4><field>C:/Users/malli/eSim/src/deviceModelLibrary/Transistor/pnp_1.lib</field></q4><q7><field>C:/Users/malli/eSim/src/deviceModelLibrary/Transistor/npn_1.lib</field></q7><q6><field>C:/Users/malli/eSim/src/deviceModelLibrary/Transistor/pnp_1.lib</field></q6><q9><field>C:/Users/malli/eSim/src/deviceModelLibrary/Transistor/pnp_1.lib</field></q9><q8><field>C:/Users/malli/eSim/src/deviceModelLibrary/Transistor/npn_1.lib</field></q8><q15><field>C:/Users/malli/eSim/src/deviceModelLibrary/Transistor/npn_1.lib</field></q15><q14><field>C:/Users/malli/eSim/src/deviceModelLibrary/Transistor/npn_1.lib</field></q14><q17><field>C:/Users/malli/eSim/src/deviceModelLibrary/Transistor/npn_1.lib</field></q17><q16><field>C:/Users/malli/eSim/src/deviceModelLibrary/Transistor/npn_1.lib</field></q16><q11><field>C:/Users/malli/eSim/src/deviceModelLibrary/Transistor/pnp_1.lib</field></q11><q10><field>C:/Users/malli/eSim/src/deviceModelLibrary/Transistor/pnp_1.lib</field></q10><q13><field>C:/Users/malli/eSim/src/deviceModelLibrary/Transistor/npn_1.lib</field></q13><q12><field>C:/Users/malli/eSim/src/deviceModelLibrary/Transistor/npn_1.lib</field></q12><q19><field>C:/Users/malli/eSim/src/deviceModelLibrary/Transistor/pnp_1.lib</field></q19><q18><field>C:/Users/malli/eSim/src/deviceModelLibrary/Transistor/npn_1.lib</field></q18></devicemodel><subcircuit /><analysis><ac><field1 name="Lin">true</field1><field2 name="Dec">false</field2><field3 name="Oct">false</field3><field4 name="Start Frequency" /><field5 name="Stop Frequency" /><field6 name="No. of points" /><field7 name="Start Fre Combo">Hz</field7><field8 name="Stop Fre Combo">Hz</field8></ac><dc><field1 name="Source 1" /><field2 name="Start" /><field3 name="Increment" /><field4 name="Stop" /><field5 name="Operating Point">0</field5><field6 name="Start Combo">Volts or Amperes</field6><field7 name="Increment Combo">Volts or Amperes</field7><field8 name="Stop Combo">Volts or Amperes</field8><field9 name="Source 2" /><field10 name="Start" /><field11 name="Increment" /><field12 name="Stop" /><field13 name="Start Combo">Volts or Amperes</field13><field14 name="Increment Combo">Volts or Amperes</field14><field15 name="Stop Combo">Volts or Amperes</field15></dc><tran><field1 name="Start Time" /><field2 name="Step Time" /><field3 name="Stop Time" /><field4 name="Start Combo">Sec</field4><field5 name="Step Combo">Sec</field5><field6 name="Stop Combo">Sec</field6></tran></analysis></KicadtoNgspice> \ No newline at end of file
diff --git a/Examples/NGHDL_Examples/PWM_Decremental/npn_1.lib b/Examples/NGHDL_Examples/PWM_Decremental/npn_1.lib
new file mode 100644
index 00000000..a1818ed8
--- /dev/null
+++ b/Examples/NGHDL_Examples/PWM_Decremental/npn_1.lib
@@ -0,0 +1,29 @@
+.model npn_1 NPN(
++ Vtf=1.7
++ Cjc=0.5p
++ Nc=2
++ Tr=46.91n
++ Ne=1.307
++ Cje=0.5p
++ Isc=0
++ Xtb=1.5
++ Rb=500
++ Rc=1
++ Tf=411.1p
++ Xti=3
++ Ikr=0
++ Bf=125
++ Fc=.5
++ Ise=14.34f
++ Br=6.092
++ Ikf=.2847
++ Mje=.377
++ Mjc=.3416
++ Vaf=74.03
++ Vjc=.75
++ Vje=.75
++ Xtf=3
++ Itf=.6
++ Is=14.34f
++ Eg=1.11
+) \ No newline at end of file
diff --git a/Examples/NGHDL_Examples/PWM_Decremental/pnp_1.lib b/Examples/NGHDL_Examples/PWM_Decremental/pnp_1.lib
new file mode 100644
index 00000000..a4ee06da
--- /dev/null
+++ b/Examples/NGHDL_Examples/PWM_Decremental/pnp_1.lib
@@ -0,0 +1,29 @@
+.model pnp_1 PNP(
++ Vtf=1.7
++ Cjc=1.5p
++ Nc=2
++ Tr=46.91n
++ Ne=1.307
++ Cje=0.3p
++ Isc=0
++ Xtb=1.5
++ Rb=250
++ Rc=1
++ Tf=411.1p
++ Xti=3
++ Ikr=0
++ Bf=25
++ Fc=.5
++ Ise=14.34f
++ Br=6.092
++ Ikf=.2847
++ Mje=.377
++ Mjc=.3416
++ Vaf=74.03
++ Vjc=.75
++ Vje=.75
++ Xtf=3
++ Itf=.6
++ Is=14.34f
++ Eg=1.11
+) \ No newline at end of file
diff --git a/Examples/NGHDL_Examples/PWM_Incremental/NPN.lib b/Examples/NGHDL_Examples/PWM_Incremental/NPN.lib
new file mode 100644
index 00000000..6509fe7a
--- /dev/null
+++ b/Examples/NGHDL_Examples/PWM_Incremental/NPN.lib
@@ -0,0 +1,4 @@
+.model Q2N2222 NPN( Is=14.34f Xti=3 Eg=1.11 Vaf=74.03 Bf=400 Ne=1.307
++ Ise=14.34f Ikf=.2847 Xtb=1.5 Br=6.092 Nc=2 Isc=0 Ikr=0 Rc=1 Cjc=7.306p
++ Mjc=.3416 Vjc=.75 Fc=.5 Cje=22.01p Mje=.377 Vje=.75 Tr=46.91n Tf=411.1p
++ Itf=.6 Vtf=1.7 Xtf=3 Rb=10)
diff --git a/Examples/NGHDL_Examples/PWM_Incremental/PNP.lib b/Examples/NGHDL_Examples/PWM_Incremental/PNP.lib
new file mode 100644
index 00000000..7edda0ea
--- /dev/null
+++ b/Examples/NGHDL_Examples/PWM_Incremental/PNP.lib
@@ -0,0 +1,4 @@
+.model Q2N2907A PNP(Is=650.6E-18 Xti=3 Eg=1.11 Vaf=115.7 Bf=231.7 Ne=1.829
++ Ise=54.81f Ikf=1.079 Xtb=1.5 Br=3.563 Nc=2 Isc=0 Ikr=0 Rc=.715
++ Cjc=14.76p Mjc=.5383 Vjc=.75 Fc=.5 Cje=19.82p Mje=.3357 Vje=.75
++ Tr=111.3n Tf=603.7p Itf=.65 Vtf=5 Xtf=1.7 Rb=10)
diff --git a/Examples/NGHDL_Examples/PWM_Incremental/PWM_Incremental-cache.lib b/Examples/NGHDL_Examples/PWM_Incremental/PWM_Incremental-cache.lib
new file mode 100644
index 00000000..96aae32d
--- /dev/null
+++ b/Examples/NGHDL_Examples/PWM_Incremental/PWM_Incremental-cache.lib
@@ -0,0 +1,169 @@
+EESchema-LIBRARY Version 2.3
+#encoding utf-8
+#
+# C
+#
+DEF C C 0 10 N Y 1 F N
+F0 "C" 25 100 50 H V L CNN
+F1 "C" 25 -100 50 H V L CNN
+F2 "" 38 -150 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+$FPLIST
+ C_*
+$ENDFPLIST
+DRAW
+P 2 0 1 20 -80 -30 80 -30 N
+P 2 0 1 20 -80 30 80 30 N
+X ~ 1 0 150 110 D 50 50 1 1 P
+X ~ 2 0 -150 110 U 50 50 1 1 P
+ENDDRAW
+ENDDEF
+#
+# DC
+#
+DEF DC v 0 40 Y Y 1 F N
+F0 "v" -200 100 60 H V C CNN
+F1 "DC" -200 -50 60 H V C CNN
+F2 "R1" -300 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+$FPLIST
+ 1_pin
+$ENDFPLIST
+DRAW
+C 0 0 150 0 1 0 N
+X + 1 0 450 300 D 50 50 1 1 w
+X - 2 0 -450 300 U 50 50 1 1 w
+ENDDRAW
+ENDDEF
+#
+# R
+#
+DEF R R 0 0 N Y 1 F N
+F0 "R" 80 0 50 V V C CNN
+F1 "R" 0 0 50 V V C CNN
+F2 "" -70 0 50 V I C CNN
+F3 "" 0 0 50 H I C CNN
+$FPLIST
+ R_*
+ R_*
+$ENDFPLIST
+DRAW
+S -40 -100 40 100 0 1 10 N
+X ~ 1 0 150 50 D 50 50 1 1 P
+X ~ 2 0 -150 50 U 50 50 1 1 P
+ENDDRAW
+ENDDEF
+#
+# adc_bridge_1
+#
+DEF adc_bridge_1 U 0 40 Y Y 1 F N
+F0 "U" 0 0 60 H V C CNN
+F1 "adc_bridge_1" 0 150 60 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+S -400 200 350 -50 0 1 0 N
+X IN1 1 -600 50 200 R 50 50 1 1 I
+X OUT1 2 550 50 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# dac_bridge_1
+#
+DEF dac_bridge_1 U 0 40 Y Y 1 F N
+F0 "U" 0 0 60 H V C CNN
+F1 "dac_bridge_1" 0 150 60 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+S -400 200 350 -50 0 1 0 N
+X IN1 1 -600 50 200 R 50 50 1 1 I
+X OUT1 2 550 50 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+# eSim_GND
+#
+DEF eSim_GND #PWR 0 0 Y Y 1 F P
+F0 "#PWR" 0 -250 50 H I C CNN
+F1 "eSim_GND" 0 -150 50 H V C CNN
+F2 "" 0 0 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+DRAW
+P 6 0 1 0 0 0 0 -50 50 -50 0 -100 -50 -50 0 -50 N
+X GND 1 0 0 0 D 50 50 1 1 W N
+ENDDRAW
+ENDDEF
+#
+# lm_741
+#
+DEF lm_741 X 0 40 Y Y 1 F N
+F0 "X" -200 0 60 H V C CNN
+F1 "lm_741" -100 -250 60 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+P 4 0 1 0 -350 350 350 0 -350 -350 -350 350 N
+X off_null 1 -50 400 200 D 50 38 1 1 I
+X inv 2 -550 150 200 R 50 38 1 1 I
+X non_inv 3 -550 -100 200 R 50 38 1 1 I
+X v_neg 4 -150 -450 200 U 50 38 1 1 I
+X off_null 5 50 350 200 D 50 38 1 1 I
+X out 6 550 0 200 L 50 38 1 1 O
+X v_pos 7 -150 450 200 D 50 38 1 1 I
+X NC 8 150 -300 200 U 50 38 1 1 N
+ENDDRAW
+ENDDEF
+#
+# plot_v1
+#
+DEF plot_v1 U 0 40 Y Y 1 F N
+F0 "U" 0 500 60 H V C CNN
+F1 "plot_v1" 200 350 60 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+C 0 500 100 0 1 0 N
+X ~ ~ 0 200 200 U 50 50 1 1 I
+ENDDRAW
+ENDDEF
+#
+# pulse
+#
+DEF pulse v 0 40 Y Y 1 F N
+F0 "v" -200 100 60 H V C CNN
+F1 "pulse" -200 -50 60 H V C CNN
+F2 "R1" -300 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+$FPLIST
+ 1_pin
+$ENDFPLIST
+DRAW
+A -25 -450 501 928 871 0 1 0 N -50 50 0 50
+A 25 400 451 -931 -868 0 1 0 N 0 -50 50 -50
+A 75 600 551 -926 -873 0 1 0 N 50 50 100 50
+A 350 0 403 -1728 1728 0 1 0 N -50 -50 -50 50
+A 450 0 453 1736 -1736 0 1 0 N 0 50 0 -50
+A 600 0 552 -1748 1748 0 1 0 N 50 -50 50 50
+C 0 0 150 0 1 0 N
+X + 1 0 450 300 D 50 50 1 1 P
+X - 2 0 -450 300 U 50 50 1 1 P
+ENDDRAW
+ENDDEF
+#
+# pwmincrement
+#
+DEF pwmincrement U 0 40 Y Y 1 F N
+F0 "U" 2850 1800 60 H V C CNN
+F1 "pwmincrement" 2850 2000 60 H V C CNN
+F2 "" 2850 1950 60 H V C CNN
+F3 "" 2850 1950 60 H V C CNN
+DRAW
+S 2550 2100 3150 1600 0 1 0 N
+X in1 1 2350 1900 200 R 50 50 1 1 I
+X in2 2 2350 1800 200 R 50 50 1 1 I
+X out1 3 3350 1900 200 L 50 50 1 1 O
+ENDDRAW
+ENDDEF
+#
+#End Library
diff --git a/Examples/NGHDL_Examples/PWM_Incremental/PWM_Incremental.cir b/Examples/NGHDL_Examples/PWM_Incremental/PWM_Incremental.cir
new file mode 100644
index 00000000..e04c64f0
--- /dev/null
+++ b/Examples/NGHDL_Examples/PWM_Incremental/PWM_Incremental.cir
@@ -0,0 +1,26 @@
+* /home/saurabh/eSim-Workspace/PWM_Incremental/PWM_Incremental.cir
+
+* EESchema Netlist Version 1.1 (Spice format) creation date: Thu Nov 14 23:08:06 2019
+
+* To exclude a component from the Spice Netlist add [Spice_Netlist_Enabled] user FIELD set to: N
+* To reorder the component spice node sequence add [Spice_Node_Sequence] user FIELD and define sequence: 2,1,0
+
+* Sheet Name: /
+v2 Net-_X1-Pad7_ GND 9v
+U3 D plot_v1
+X1 ? rc1 pwl_IN Net-_X1-Pad4_ ? D Net-_X1-Pad7_ ? lm_741
+R1 Q rc1 1k
+U7 rc1 plot_v1
+C1 GND rc1 1u
+U8 Net-_U2-Pad3_ Q dac_bridge_1
+U9 Q plot_v1
+U6 clk plot_v1
+v4 Net-_U4-Pad1_ GND pulse
+U5 D Net-_U2-Pad2_ adc_bridge_1
+U4 Net-_U4-Pad1_ clk adc_bridge_1
+v3 Net-_X1-Pad4_ GND -9v
+U1 pwl_IN plot_v1
+v1 pwl_IN GND 3
+U2 clk Net-_U2-Pad2_ Net-_U2-Pad3_ pwmincrement
+
+.end
diff --git a/Examples/NGHDL_Examples/PWM_Incremental/PWM_Incremental.cir.out b/Examples/NGHDL_Examples/PWM_Incremental/PWM_Incremental.cir.out
new file mode 100644
index 00000000..4d222d7b
--- /dev/null
+++ b/Examples/NGHDL_Examples/PWM_Incremental/PWM_Incremental.cir.out
@@ -0,0 +1,45 @@
+* /home/saurabh/esim-workspace/pwm_incremental/pwm_incremental.cir
+
+.include lm_741.sub
+v2 net-_x1-pad7_ gnd 9v
+* u3 d plot_v1
+x1 ? rc1 pwl_in net-_x1-pad4_ ? d net-_x1-pad7_ ? lm_741
+r1 q rc1 1k
+* u7 rc1 plot_v1
+c1 gnd rc1 1u
+* u8 net-_u2-pad3_ q dac_bridge_1
+* u9 q plot_v1
+* u6 clk plot_v1
+v4 net-_u4-pad1_ gnd pulse(0 5 10u 10u 20u 0.5m 1m)
+* u5 d net-_u2-pad2_ adc_bridge_1
+* u4 net-_u4-pad1_ clk adc_bridge_1
+v3 net-_x1-pad4_ gnd -9v
+* u1 pwl_in plot_v1
+v1 pwl_in gnd 3
+* u2 clk net-_u2-pad2_ net-_u2-pad3_ pwmincrement
+a1 [net-_u2-pad3_ ] [q ] u8
+a2 [d ] [net-_u2-pad2_ ] u5
+a3 [net-_u4-pad1_ ] [clk ] u4
+a4 [clk ] [net-_u2-pad2_ ] [net-_u2-pad3_ ] u2
+* Schematic Name: dac_bridge_1, NgSpice Name: dac_bridge
+.model u8 dac_bridge(out_undef=0.5 out_low=0.0 out_high=5.0 t_rise=1.0e-9 t_fall=1.0e-9 input_load=1.0e-12 )
+* Schematic Name: adc_bridge_1, NgSpice Name: adc_bridge
+.model u5 adc_bridge(fall_delay=1.0e-9 in_high=2.0 rise_delay=1.0e-9 in_low=1.0 )
+* Schematic Name: adc_bridge_1, NgSpice Name: adc_bridge
+.model u4 adc_bridge(fall_delay=1.0e-9 in_high=2.0 rise_delay=1.0e-9 in_low=1.0 )
+* Schematic Name: pwmincrement, NgSpice Name: pwmincrement
+.model u2 pwmincrement(fall_delay=1.0e-9 input_load=1.0e-12 rise_delay=1.0e-9 instance_id=1 stop_time=100e-3 )
+.tran 1e-03 100e-03 0e-03
+
+* Control Statements
+.control
+run
+print allv > plot_data_v.txt
+print alli > plot_data_i.txt
+plot v(d)
+plot v(rc1)
+plot v(q)
+plot v(clk)
+plot v(pwl_in)
+.endc
+.end
diff --git a/Examples/NGHDL_Examples/PWM_Incremental/PWM_Incremental.pro b/Examples/NGHDL_Examples/PWM_Incremental/PWM_Incremental.pro
new file mode 100644
index 00000000..31e63107
--- /dev/null
+++ b/Examples/NGHDL_Examples/PWM_Incremental/PWM_Incremental.pro
@@ -0,0 +1,73 @@
+update=Thu Nov 14 23:00:31 2019
+version=1
+last_client=eeschema
+[general]
+version=1
+RootSch=
+BoardNm=
+[pcbnew]
+version=1
+LastNetListRead=
+UseCmpFile=1
+PadDrill=0.600000000000
+PadDrillOvalY=0.600000000000
+PadSizeH=1.500000000000
+PadSizeV=1.500000000000
+PcbTextSizeV=1.500000000000
+PcbTextSizeH=1.500000000000
+PcbTextThickness=0.300000000000
+ModuleTextSizeV=1.000000000000
+ModuleTextSizeH=1.000000000000
+ModuleTextSizeThickness=0.150000000000
+SolderMaskClearance=0.000000000000
+SolderMaskMinWidth=0.000000000000
+DrawSegmentWidth=0.200000000000
+BoardOutlineThickness=0.100000000000
+ModuleOutlineThickness=0.150000000000
+[cvpcb]
+version=1
+NetIExt=net
+[eeschema]
+version=1
+LibDir=
+[eeschema/libraries]
+LibName1=power
+LibName2=device
+LibName3=switches
+LibName4=relays
+LibName5=motors
+LibName6=transistors
+LibName7=conn
+LibName8=linear
+LibName9=regul
+LibName10=74xx
+LibName11=cmos4000
+LibName12=adc-dac
+LibName13=memory
+LibName14=xilinx
+LibName15=microcontrollers
+LibName16=dsp
+LibName17=microchip
+LibName18=analog_switches
+LibName19=motorola
+LibName20=texas
+LibName21=intel
+LibName22=audio
+LibName23=interface
+LibName24=digital-audio
+LibName25=philips
+LibName26=display
+LibName27=cypress
+LibName28=siliconi
+LibName29=eSim_Analog
+LibName30=eSim_Devices
+LibName31=eSim_Digital
+LibName32=eSim_Hybrid
+LibName33=eSim_Miscellaneous
+LibName34=eSim_Power
+LibName35=eSim_Sources
+LibName36=eSim_Subckt
+LibName37=eSim_User
+LibName38=eSim_Plot
+LibName39=eSim_PSpice
+LibName40=/home/saurabh/eSim_kicad
diff --git a/Examples/NGHDL_Examples/PWM_Incremental/PWM_Incremental.proj b/Examples/NGHDL_Examples/PWM_Incremental/PWM_Incremental.proj
new file mode 100644
index 00000000..5bb660af
--- /dev/null
+++ b/Examples/NGHDL_Examples/PWM_Incremental/PWM_Incremental.proj
@@ -0,0 +1 @@
+schematicFile PWM_Incremental.sch
diff --git a/Examples/NGHDL_Examples/PWM_Incremental/PWM_Incremental.sch b/Examples/NGHDL_Examples/PWM_Incremental/PWM_Incremental.sch
new file mode 100644
index 00000000..dbb48d87
--- /dev/null
+++ b/Examples/NGHDL_Examples/PWM_Incremental/PWM_Incremental.sch
@@ -0,0 +1,435 @@
+EESchema Schematic File Version 2
+LIBS:power
+LIBS:device
+LIBS:switches
+LIBS:relays
+LIBS:motors
+LIBS:transistors
+LIBS:conn
+LIBS:linear
+LIBS:regul
+LIBS:74xx
+LIBS:cmos4000
+LIBS:adc-dac
+LIBS:memory
+LIBS:xilinx
+LIBS:microcontrollers
+LIBS:dsp
+LIBS:microchip
+LIBS:analog_switches
+LIBS:motorola
+LIBS:texas
+LIBS:intel
+LIBS:audio
+LIBS:interface
+LIBS:digital-audio
+LIBS:philips
+LIBS:display
+LIBS:cypress
+LIBS:siliconi
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Power
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_User
+LIBS:eSim_Plot
+LIBS:eSim_PSpice
+LIBS:eSim_kicad
+LIBS:PWM_Incremental-cache
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+F 0 "v1" H 1850 4000 60 0000 C CNN
+F 1 "3" H 1850 3850 60 0000 C CNN
+F 2 "R1" H 1750 3900 60 0000 C CNN
+F 3 "" H 2050 3900 60 0000 C CNN
+ 1 2050 3900
+ 0 1 1 0
+$EndComp
+Wire Wire Line
+ 3700 3200 4300 3200
+Wire Wire Line
+ 4300 3200 4300 3700
+Wire Wire Line
+ 4300 4600 4300 5150
+Wire Wire Line
+ 5000 4150 5150 4150
+Wire Wire Line
+ 5400 4000 5400 4600
+Wire Wire Line
+ 5550 4300 5400 4300
+Connection ~ 5400 4300
+Connection ~ 2800 3900
+Wire Wire Line
+ 2500 3900 3050 3900
+Wire Wire Line
+ 3050 3900 3050 4400
+Wire Wire Line
+ 2700 3300 2700 3200
+Wire Wire Line
+ 2700 3200 2800 3200
+Connection ~ 4300 5150
+Wire Wire Line
+ 3150 4250 3900 4250
+Wire Wire Line
+ 3550 4000 3900 4000
+Wire Wire Line
+ 6550 4450 6850 4450
+Wire Wire Line
+ 6850 4450 6850 4650
+Wire Wire Line
+ 6250 4600 6250 4450
+Wire Wire Line
+ 7050 4500 7050 4200
+Wire Wire Line
+ 6850 4500 9300 4500
+Connection ~ 6850 4500
+Wire Wire Line
+ 7300 4450 7050 4450
+Wire Wire Line
+ 4300 5150 4200 5150
+Wire Wire Line
+ 8900 1850 9300 1850
+Wire Wire Line
+ 9050 1850 9050 3050
+Connection ~ 9050 1850
+Connection ~ 6100 4600
+Connection ~ 5150 4150
+Wire Wire Line
+ 6250 1850 6250 2550
+Connection ~ 6250 2200
+Wire Wire Line
+ 9250 2350 9200 2350
+Wire Wire Line
+ 9200 2350 9200 1850
+Connection ~ 9200 1850
+Wire Wire Line
+ 6500 2500 6250 2500
+Connection ~ 6250 2500
+Wire Wire Line
+ 6100 1850 6400 1850
+Connection ~ 6250 1850
+Wire Wire Line
+ 6400 1950 6150 1950
+Wire Wire Line
+ 6150 1950 6150 2200
+Wire Notes Line
+ 1200 5750 4850 5750
+Wire Notes Line
+ 1200 5750 1200 2450
+Wire Notes Line
+ 1200 2450 4150 2450
+Wire Notes Line
+ 4150 2450 4150 3150
+Wire Notes Line
+ 4150 3150 4850 3150
+Wire Notes Line
+ 4850 3150 4850 5750
+Wire Notes Line
+ 5950 3900 5950 5300
+Wire Notes Line
+ 5950 5300 8050 5300
+Wire Notes Line
+ 8050 5300 8050 3600
+Wire Notes Line
+ 8050 3600 5900 3600
+Wire Notes Line
+ 5900 3600 5900 3950
+Wire Notes Line
+ 5900 3950 5950 3950
+Wire Wire Line
+ 3150 4250 3150 4400
+Wire Wire Line
+ 3150 4400 3050 4400
+Wire Wire Line
+ 6850 4950 6850 5450
+Wire Wire Line
+ 2650 3700 3550 3700
+Wire Wire Line
+ 3550 3700 3550 4000
+Wire Wire Line
+ 2650 3750 2650 3700
+Wire Wire Line
+ 5150 2450 5150 4600
+Wire Wire Line
+ 2550 6400 9300 6400
+Wire Wire Line
+ 2550 6400 2550 3750
+Wire Wire Line
+ 9050 3050 6100 3050
+Wire Wire Line
+ 4500 1850 4950 1850
+Wire Wire Line
+ 4750 2200 5000 2200
+Wire Wire Line
+ 4750 2450 4750 2200
+Wire Wire Line
+ 5150 2450 4750 2450
+Wire Wire Line
+ 4500 1850 4500 2250
+Wire Wire Line
+ 5150 4600 5400 4600
+Wire Wire Line
+ 6100 3050 6100 4600
+Wire Wire Line
+ 6100 4600 6250 4600
+Wire Wire Line
+ 2550 3750 2650 3750
+Connection ~ 7050 4450
+Connection ~ 7050 4500
+Wire Wire Line
+ 7400 1850 7750 1850
+Wire Wire Line
+ 9300 6400 9300 4500
+$Comp
+L pwmincrement U2
+U 1 1 5DCD9189
+P 4050 3750
+F 0 "U2" H 6900 5550 60 0000 C CNN
+F 1 "pwmincrement" H 6900 5750 60 0000 C CNN
+F 2 "" H 6900 5700 60 0000 C CNN
+F 3 "" H 6900 5700 60 0000 C CNN
+ 1 4050 3750
+ 1 0 0 -1
+$EndComp
+$EndSCHEMATC
diff --git a/Examples/NGHDL_Examples/PWM_Incremental/PWM_Incremental_Previous_Values.xml b/Examples/NGHDL_Examples/PWM_Incremental/PWM_Incremental_Previous_Values.xml
new file mode 100644
index 00000000..bd749bf9
--- /dev/null
+++ b/Examples/NGHDL_Examples/PWM_Incremental/PWM_Incremental_Previous_Values.xml
@@ -0,0 +1 @@
+<KicadtoNgspice><analysis><ac><field1 name="Lin">true</field1><field2 name="Dec">false</field2><field3 name="Oct">false</field3><field4 name="Start Frequency" /><field5 name="Stop Frequency" /><field6 name="No. of points" /><field7 name="Start Fre Combo">Hz</field7><field8 name="Stop Fre Combo">Hz</field8></ac><dc><field1 name="Source 1" /><field2 name="Start" /><field3 name="Increment" /><field4 name="Stop" /><field5 name="Operating Point">0</field5><field6 name="Start Combo">Volts or Amperes</field6><field7 name="Increment Combo">Volts or Amperes</field7><field8 name="Stop Combo">Volts or Amperes</field8><field9 name="Source 2" /><field10 name="Start" /><field11 name="Increment" /><field12 name="Stop" /><field13 name="Start Combo">Volts or Amperes</field13><field14 name="Increment Combo">Volts or Amperes</field14><field15 name="Stop Combo">Volts or Amperes</field15></dc><tran><field1 name="Start Time">0</field1><field2 name="Step Time">1m</field2><field3 name="Stop Time">100m</field3><field4 name="Start Combo">ms</field4><field5 name="Step Combo">Sec</field5><field6 name="Stop Combo">Sec</field6></tran></analysis><source><v2 name="Source type">9v</v2><v4 name="Source type">pulse<field1 name="Initial Value">0</field1><field2 name="Pulse Value">5</field2><field3 name="Delay Time">10u</field3><field4 name="Rise Time">10u</field4><field5 name="Fall Time">20u</field5><field5 name="Pulse width">0.5m</field5><field5 name="Period">1m</field5></v4><v3 name="Source type">-9v</v3><v1 name="Source type">3</v1></source><model><u8 name="type">dac_bridge<field1 name="Enter value for input load (default=1.0e-12)" /><field2 name="Enter value for out_low (default=0.0)" /><field3 name="Enter value for out_high (default=5.0)" /><field4 name="Enter the Rise Time (default=1.0e-9)" /><field5 name="Enter the Fall Time (default=1.0e-9)" /><field6 name="Enter value for out_undef (default=0.5)" /></u8><u5 name="type">adc_bridge<field7 name="Enter Fall Delay (default=1.0e-9)" /><field8 name="Enter value for in_high (default=2.0)" /><field9 name="Enter Rise Delay (default=1.0e-9)" /><field10 name="Enter value for in_low (default=1.0)" /></u5><u4 name="type">adc_bridge<field11 name="Enter Fall Delay (default=1.0e-9)" /><field12 name="Enter value for in_high (default=2.0)" /><field13 name="Enter Rise Delay (default=1.0e-9)" /><field14 name="Enter value for in_low (default=1.0)" /></u4><u2 name="type">pwmincrement<field15 name="Enter Fall Delay (default=1.0e-9)" /><field16 name="Enter Input Load (default=1.0e-12)" /><field17 name="Enter Rise Delay (default=1.0e-9)" /><field18 name="Enter Instance ID (Between 0-99)" /><field19 name="Enter the stop time to end the simulation (default=90e-9)">100e-3</field19></u2></model><devicemodel /><subcircuit><x1><field>/home/saurabh/Downloads/eSim-rahulp13-eSim/src/SubcircuitLibrary/lm_741</field></x1></subcircuit></KicadtoNgspice> \ No newline at end of file
diff --git a/Examples/NGHDL_Examples/PWM_Incremental/analysis b/Examples/NGHDL_Examples/PWM_Incremental/analysis
new file mode 100644
index 00000000..93ae8d31
--- /dev/null
+++ b/Examples/NGHDL_Examples/PWM_Incremental/analysis
@@ -0,0 +1 @@
+.tran 1me-00 100me-00 0e-03 \ No newline at end of file
diff --git a/Examples/NGHDL_Examples/PWM_Incremental/lm_741-cache.lib b/Examples/NGHDL_Examples/PWM_Incremental/lm_741-cache.lib
new file mode 100644
index 00000000..04e3fecd
--- /dev/null
+++ b/Examples/NGHDL_Examples/PWM_Incremental/lm_741-cache.lib
@@ -0,0 +1,119 @@
+EESchema-LIBRARY Version 2.3
+#encoding utf-8
+#
+# PORT
+#
+DEF PORT U 0 40 Y Y 26 F N
+F0 "U" 50 100 30 H V C CNN
+F1 "PORT" 0 0 30 H V C CNN
+F2 "" 0 0 60 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+A 325 225 285 -1421 -1278 0 1 0 N 100 50 150 0
+A 376 -275 356 1294 1408 0 1 0 N 150 0 100 -50
+S -100 50 100 -50 0 1 0 N
+X ~ 1 250 0 100 L 30 30 1 1 B
+X ~ 2 250 0 100 L 30 30 2 1 B
+X ~ 3 250 0 100 L 30 30 3 1 B
+X ~ 4 250 0 100 L 30 30 4 1 B
+X ~ 5 250 0 100 L 30 30 5 1 B
+X ~ 6 250 0 100 L 30 30 6 1 B
+X ~ 7 250 0 100 L 30 30 7 1 B
+X ~ 8 250 0 100 L 30 30 8 1 B
+X ~ 9 250 0 100 L 30 30 9 1 B
+X ~ 10 250 0 100 L 30 30 10 1 B
+X ~ 11 250 0 100 L 30 30 11 1 B
+X ~ 12 250 0 100 L 30 30 12 1 B
+X ~ 13 250 0 100 L 30 30 13 1 B
+X ~ 14 250 0 100 L 30 30 14 1 B
+X ~ 15 250 0 100 L 30 30 15 1 B
+X ~ 16 250 0 100 L 30 30 16 1 B
+X ~ 17 250 0 100 L 30 30 17 1 B
+X ~ 18 250 0 100 L 30 30 18 1 B
+X ~ 19 250 0 100 L 30 30 19 1 B
+X ~ 20 250 0 100 L 30 30 20 1 B
+X ~ 21 250 0 100 L 30 30 21 1 B
+X ~ 22 250 0 100 L 30 30 22 1 B
+X ~ 23 250 0 100 L 30 30 23 1 B
+X ~ 24 250 0 100 L 30 30 24 1 B
+X ~ 25 250 0 100 L 30 30 25 1 B
+X ~ 26 250 0 100 L 30 30 26 1 B
+ENDDRAW
+ENDDEF
+#
+# eSim_C
+#
+DEF eSim_C C 0 10 N Y 1 F N
+F0 "C" 25 100 50 H V L CNN
+F1 "eSim_C" 25 -100 50 H V L CNN
+F2 "" 38 -150 30 H V C CNN
+F3 "" 0 0 60 H V C CNN
+$FPLIST
+ C_*
+$ENDFPLIST
+DRAW
+P 2 0 1 20 -80 -30 80 -30 N
+P 2 0 1 20 -80 30 80 30 N
+X ~ 1 0 150 110 D 40 40 1 1 P
+X ~ 2 0 -150 110 U 40 40 1 1 P
+ENDDRAW
+ENDDEF
+#
+# eSim_NPN
+#
+DEF eSim_NPN Q 0 0 Y N 1 F N
+F0 "Q" -100 50 50 H V R CNN
+F1 "eSim_NPN" -50 150 50 H V R CNN
+F2 "" 200 100 29 H V C CNN
+F3 "" 0 0 60 H V C CNN
+ALIAS BC547 Q2N2222
+DRAW
+C 50 0 111 0 1 10 N
+P 2 0 1 0 25 25 100 100 N
+P 3 0 1 0 25 -25 100 -100 100 -100 N
+P 3 0 1 20 25 75 25 -75 25 -75 N
+P 5 0 1 0 50 -70 70 -50 90 -90 50 -70 50 -70 F
+X C 1 100 200 100 D 50 50 1 1 C
+X B 2 -200 0 225 R 50 50 1 1 I
+X E 3 100 -200 100 U 50 50 1 1 E
+ENDDRAW
+ENDDEF
+#
+# eSim_PNP
+#
+DEF eSim_PNP Q 0 0 Y N 1 F N
+F0 "Q" -100 50 50 H V R CNN
+F1 "eSim_PNP" -50 150 50 H V R CNN
+F2 "" 200 100 29 H V C CNN
+F3 "" 0 0 60 H V C CNN
+DRAW
+C 50 0 111 0 1 10 N
+P 2 0 1 0 25 25 100 100 N
+P 3 0 1 0 25 -25 100 -100 100 -100 N
+P 3 0 1 20 25 75 25 -75 25 -75 N
+P 5 0 1 0 90 -70 70 -90 50 -50 90 -70 90 -70 F
+X C 1 100 200 100 D 50 50 1 1 C
+X B 2 -200 0 225 R 50 50 1 1 I
+X E 3 100 -200 100 U 50 50 1 1 E
+ENDDRAW
+ENDDEF
+#
+# eSim_R
+#
+DEF eSim_R R 0 0 N Y 1 F N
+F0 "R" 50 130 50 H V C CNN
+F1 "eSim_R" 50 50 50 H V C CNN
+F2 "" 50 -20 30 H V C CNN
+F3 "" 50 50 30 V V C CNN
+$FPLIST
+ R_*
+ Resistor_*
+$ENDFPLIST
+DRAW
+S 150 10 -50 90 0 1 10 N
+X ~ 1 -100 50 50 R 60 60 1 1 P
+X ~ 2 200 50 50 L 60 60 1 1 P
+ENDDRAW
+ENDDEF
+#
+#End Library
diff --git a/Examples/NGHDL_Examples/PWM_Incremental/lm_741.cir b/Examples/NGHDL_Examples/PWM_Incremental/lm_741.cir
new file mode 100644
index 00000000..4a5917ea
--- /dev/null
+++ b/Examples/NGHDL_Examples/PWM_Incremental/lm_741.cir
@@ -0,0 +1,43 @@
+* C:\Users\malli\eSim\src\SubcircuitLibrary\lm_741\lm_741.cir
+
+* EESchema Netlist Version 1.1 (Spice format) creation date: 05/25/19 19:37:28
+
+* To exclude a component from the Spice Netlist add [Spice_Netlist_Enabled] user FIELD set to: N
+* To reorder the component spice node sequence add [Spice_Node_Sequence] user FIELD and define sequence: 2,1,0
+
+* Sheet Name: /
+Q1 Net-_Q1-Pad1_ Net-_Q1-Pad2_ Net-_Q1-Pad3_ eSim_NPN
+Q2 Net-_Q1-Pad1_ Net-_Q2-Pad2_ Net-_Q2-Pad3_ eSim_NPN
+Q6 Net-_Q3-Pad2_ Net-_Q13-Pad1_ Net-_Q1-Pad3_ eSim_PNP
+Q5 Net-_C1-Pad2_ Net-_Q13-Pad1_ Net-_Q2-Pad3_ eSim_PNP
+Q3 Net-_Q10-Pad3_ Net-_Q3-Pad2_ Net-_Q3-Pad3_ eSim_NPN
+Q4 Net-_Q1-Pad1_ Net-_Q1-Pad1_ Net-_Q10-Pad3_ eSim_PNP
+Q9 Net-_Q13-Pad1_ Net-_Q1-Pad1_ Net-_Q10-Pad3_ eSim_PNP
+Q8 Net-_C1-Pad2_ Net-_Q3-Pad3_ Net-_Q8-Pad3_ eSim_NPN
+Q7 Net-_Q3-Pad2_ Net-_Q3-Pad3_ Net-_Q7-Pad3_ eSim_NPN
+R1 Net-_Q7-Pad3_ Net-_Q12-Pad3_ 1k
+R2 Net-_Q3-Pad3_ Net-_Q12-Pad3_ 50k
+R3 Net-_Q8-Pad3_ Net-_Q12-Pad3_ 1k
+Q12 Net-_Q12-Pad1_ Net-_Q12-Pad1_ Net-_Q12-Pad3_ eSim_NPN
+Q13 Net-_Q13-Pad1_ Net-_Q12-Pad1_ Net-_Q13-Pad3_ eSim_NPN
+R4 Net-_Q13-Pad3_ Net-_Q12-Pad3_ 5k
+R11 Net-_Q10-Pad1_ Net-_Q12-Pad1_ 39k
+Q10 Net-_Q10-Pad1_ Net-_Q10-Pad1_ Net-_Q10-Pad3_ eSim_PNP
+Q11 Net-_C1-Pad1_ Net-_Q10-Pad1_ Net-_Q10-Pad3_ eSim_PNP
+Q14 Net-_C1-Pad1_ Net-_Q14-Pad2_ Net-_Q14-Pad3_ eSim_NPN
+R8 Net-_C1-Pad1_ Net-_Q14-Pad2_ 4.5k
+R7 Net-_Q14-Pad3_ Net-_Q14-Pad2_ 7.5k
+C1 Net-_C1-Pad1_ Net-_C1-Pad2_ 30p
+Q16 Net-_Q14-Pad3_ Net-_C1-Pad2_ Net-_Q15-Pad2_ eSim_NPN
+Q15 Net-_Q14-Pad3_ Net-_Q15-Pad2_ Net-_Q15-Pad3_ eSim_NPN
+R5 Net-_Q15-Pad2_ Net-_Q12-Pad3_ 50k
+R6 Net-_Q15-Pad3_ Net-_Q12-Pad3_ 50
+Q17 Net-_C1-Pad2_ Net-_Q15-Pad3_ Net-_Q12-Pad3_ eSim_NPN
+Q18 Net-_Q10-Pad3_ Net-_C1-Pad1_ Net-_Q18-Pad3_ eSim_NPN
+Q20 Net-_C1-Pad1_ Net-_Q18-Pad3_ Net-_Q20-Pad3_ eSim_NPN
+R9 Net-_Q18-Pad3_ Net-_Q20-Pad3_ 25
+R10 Net-_Q20-Pad3_ Net-_Q19-Pad3_ 50
+Q19 Net-_Q12-Pad3_ Net-_Q14-Pad3_ Net-_Q19-Pad3_ eSim_PNP
+U1 Net-_Q7-Pad3_ Net-_Q2-Pad2_ Net-_Q1-Pad2_ Net-_Q12-Pad3_ Net-_Q8-Pad3_ Net-_Q20-Pad3_ Net-_Q10-Pad3_ ? PORT
+
+.end
diff --git a/Examples/NGHDL_Examples/PWM_Incremental/lm_741.cir.out b/Examples/NGHDL_Examples/PWM_Incremental/lm_741.cir.out
new file mode 100644
index 00000000..a00bd86a
--- /dev/null
+++ b/Examples/NGHDL_Examples/PWM_Incremental/lm_741.cir.out
@@ -0,0 +1,46 @@
+* c:\users\malli\esim\src\subcircuitlibrary\lm_741\lm_741.cir
+
+.include npn_1.lib
+.include pnp_1.lib
+q1 net-_q1-pad1_ net-_q1-pad2_ net-_q1-pad3_ npn_1
+q2 net-_q1-pad1_ net-_q2-pad2_ net-_q2-pad3_ npn_1
+q6 net-_q3-pad2_ net-_q13-pad1_ net-_q1-pad3_ pnp_1
+q5 net-_c1-pad2_ net-_q13-pad1_ net-_q2-pad3_ pnp_1
+q3 net-_q10-pad3_ net-_q3-pad2_ net-_q3-pad3_ npn_1
+q4 net-_q1-pad1_ net-_q1-pad1_ net-_q10-pad3_ pnp_1
+q9 net-_q13-pad1_ net-_q1-pad1_ net-_q10-pad3_ pnp_1
+q8 net-_c1-pad2_ net-_q3-pad3_ net-_q8-pad3_ npn_1
+q7 net-_q3-pad2_ net-_q3-pad3_ net-_q7-pad3_ npn_1
+r1 net-_q7-pad3_ net-_q12-pad3_ 1k
+r2 net-_q3-pad3_ net-_q12-pad3_ 50k
+r3 net-_q8-pad3_ net-_q12-pad3_ 1k
+q12 net-_q12-pad1_ net-_q12-pad1_ net-_q12-pad3_ npn_1
+q13 net-_q13-pad1_ net-_q12-pad1_ net-_q13-pad3_ npn_1
+r4 net-_q13-pad3_ net-_q12-pad3_ 5k
+r11 net-_q10-pad1_ net-_q12-pad1_ 39k
+q10 net-_q10-pad1_ net-_q10-pad1_ net-_q10-pad3_ pnp_1
+q11 net-_c1-pad1_ net-_q10-pad1_ net-_q10-pad3_ pnp_1
+q14 net-_c1-pad1_ net-_q14-pad2_ net-_q14-pad3_ npn_1
+r8 net-_c1-pad1_ net-_q14-pad2_ 4.5k
+r7 net-_q14-pad3_ net-_q14-pad2_ 7.5k
+c1 net-_c1-pad1_ net-_c1-pad2_ 30p
+q16 net-_q14-pad3_ net-_c1-pad2_ net-_q15-pad2_ npn_1
+q15 net-_q14-pad3_ net-_q15-pad2_ net-_q15-pad3_ npn_1
+r5 net-_q15-pad2_ net-_q12-pad3_ 50k
+r6 net-_q15-pad3_ net-_q12-pad3_ 50
+q17 net-_c1-pad2_ net-_q15-pad3_ net-_q12-pad3_ npn_1
+q18 net-_q10-pad3_ net-_c1-pad1_ net-_q18-pad3_ npn_1
+q20 net-_c1-pad1_ net-_q18-pad3_ net-_q20-pad3_ npn_1
+r9 net-_q18-pad3_ net-_q20-pad3_ 25
+r10 net-_q20-pad3_ net-_q19-pad3_ 50
+q19 net-_q12-pad3_ net-_q14-pad3_ net-_q19-pad3_ pnp_1
+* u1 net-_q7-pad3_ net-_q2-pad2_ net-_q1-pad2_ net-_q12-pad3_ net-_q8-pad3_ net-_q20-pad3_ net-_q10-pad3_ ? port
+.tran 0e-00 0e-00 0e-00
+
+* Control Statements
+.control
+run
+print allv > plot_data_v.txt
+print alli > plot_data_i.txt
+.endc
+.end
diff --git a/Examples/NGHDL_Examples/PWM_Incremental/lm_741.pro b/Examples/NGHDL_Examples/PWM_Incremental/lm_741.pro
new file mode 100644
index 00000000..cbe83f35
--- /dev/null
+++ b/Examples/NGHDL_Examples/PWM_Incremental/lm_741.pro
@@ -0,0 +1,45 @@
+update=Fri Jun 7 21:53:51 2019
+version=1
+last_client=eeschema
+[general]
+version=1
+RootSch=
+BoardNm=
+[pcbnew]
+version=1
+LastNetListRead=
+UseCmpFile=1
+PadDrill=0.600000000000
+PadDrillOvalY=0.600000000000
+PadSizeH=1.500000000000
+PadSizeV=1.500000000000
+PcbTextSizeV=1.500000000000
+PcbTextSizeH=1.500000000000
+PcbTextThickness=0.300000000000
+ModuleTextSizeV=1.000000000000
+ModuleTextSizeH=1.000000000000
+ModuleTextSizeThickness=0.150000000000
+SolderMaskClearance=0.000000000000
+SolderMaskMinWidth=0.000000000000
+DrawSegmentWidth=0.200000000000
+BoardOutlineThickness=0.100000000000
+ModuleOutlineThickness=0.150000000000
+[cvpcb]
+version=1
+NetIExt=net
+[eeschema]
+version=1
+LibDir=
+[eeschema/libraries]
+LibName1=power
+LibName2=eSim_Analog
+LibName3=eSim_Devices
+LibName4=eSim_Digital
+LibName5=eSim_Hybrid
+LibName6=eSim_Miscellaneous
+LibName7=eSim_Plot
+LibName8=eSim_Power
+LibName9=eSim_PSpice
+LibName10=eSim_Sources
+LibName11=eSim_Subckt
+LibName12=eSim_User
diff --git a/Examples/NGHDL_Examples/PWM_Incremental/lm_741.sch b/Examples/NGHDL_Examples/PWM_Incremental/lm_741.sch
new file mode 100644
index 00000000..b017fd2b
--- /dev/null
+++ b/Examples/NGHDL_Examples/PWM_Incremental/lm_741.sch
@@ -0,0 +1,697 @@
+EESchema Schematic File Version 2
+LIBS:power
+LIBS:eSim_Analog
+LIBS:eSim_Devices
+LIBS:eSim_Digital
+LIBS:eSim_Hybrid
+LIBS:eSim_Miscellaneous
+LIBS:eSim_Plot
+LIBS:eSim_Power
+LIBS:eSim_PSpice
+LIBS:eSim_Sources
+LIBS:eSim_Subckt
+LIBS:eSim_User
+LIBS:lm_741-cache
+EELAYER 25 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+$Comp
+L eSim_NPN Q1
+U 1 1 5CE90A7B
+P 2650 2700
+F 0 "Q1" H 2550 2750 50 0000 R CNN
+F 1 "eSim_NPN" H 2600 2850 50 0000 R CNN
+F 2 "" H 2850 2800 29 0000 C CNN
+F 3 "" H 2650 2700 60 0000 C CNN
+ 1 2650 2700
+ 1 0 0 -1
+$EndComp
+$Comp
+L eSim_NPN Q2
+U 1 1 5CE90A7C
+P 4300 2700
+F 0 "Q2" H 4200 2750 50 0000 R CNN
+F 1 "eSim_NPN" H 4250 2850 50 0000 R CNN
+F 2 "" H 4500 2800 29 0000 C CNN
+F 3 "" H 4300 2700 60 0000 C CNN
+ 1 4300 2700
+ -1 0 0 -1
+$EndComp
+$Comp
+L eSim_PNP Q6
+U 1 1 5CE90A7D
+P 3000 3200
+F 0 "Q6" H 2900 3250 50 0000 R CNN
+F 1 "eSim_PNP" H 2950 3350 50 0000 R CNN
+F 2 "" H 3200 3300 29 0000 C CNN
+F 3 "" H 3000 3200 60 0000 C CNN
+ 1 3000 3200
+ -1 0 0 1
+$EndComp
+$Comp
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diff --git a/Examples/NGHDL_Examples/PWM_Incremental/lm_741.sub b/Examples/NGHDL_Examples/PWM_Incremental/lm_741.sub
new file mode 100644
index 00000000..fa8d27b1
--- /dev/null
+++ b/Examples/NGHDL_Examples/PWM_Incremental/lm_741.sub
@@ -0,0 +1,40 @@
+* Subcircuit lm_741
+.subckt lm_741 net-_q7-pad3_ net-_q2-pad2_ net-_q1-pad2_ net-_q12-pad3_ net-_q8-pad3_ net-_q20-pad3_ net-_q10-pad3_ ?
+* c:\users\malli\esim\src\subcircuitlibrary\lm_741\lm_741.cir
+.include npn_1.lib
+.include pnp_1.lib
+q1 net-_q1-pad1_ net-_q1-pad2_ net-_q1-pad3_ npn_1
+q2 net-_q1-pad1_ net-_q2-pad2_ net-_q2-pad3_ npn_1
+q6 net-_q3-pad2_ net-_q13-pad1_ net-_q1-pad3_ pnp_1
+q5 net-_c1-pad2_ net-_q13-pad1_ net-_q2-pad3_ pnp_1
+q3 net-_q10-pad3_ net-_q3-pad2_ net-_q3-pad3_ npn_1
+q4 net-_q1-pad1_ net-_q1-pad1_ net-_q10-pad3_ pnp_1
+q9 net-_q13-pad1_ net-_q1-pad1_ net-_q10-pad3_ pnp_1
+q8 net-_c1-pad2_ net-_q3-pad3_ net-_q8-pad3_ npn_1
+q7 net-_q3-pad2_ net-_q3-pad3_ net-_q7-pad3_ npn_1
+r1 net-_q7-pad3_ net-_q12-pad3_ 1k
+r2 net-_q3-pad3_ net-_q12-pad3_ 50k
+r3 net-_q8-pad3_ net-_q12-pad3_ 1k
+q12 net-_q12-pad1_ net-_q12-pad1_ net-_q12-pad3_ npn_1
+q13 net-_q13-pad1_ net-_q12-pad1_ net-_q13-pad3_ npn_1
+r4 net-_q13-pad3_ net-_q12-pad3_ 5k
+r11 net-_q10-pad1_ net-_q12-pad1_ 39k
+q10 net-_q10-pad1_ net-_q10-pad1_ net-_q10-pad3_ pnp_1
+q11 net-_c1-pad1_ net-_q10-pad1_ net-_q10-pad3_ pnp_1
+q14 net-_c1-pad1_ net-_q14-pad2_ net-_q14-pad3_ npn_1
+r8 net-_c1-pad1_ net-_q14-pad2_ 4.5k
+r7 net-_q14-pad3_ net-_q14-pad2_ 7.5k
+c1 net-_c1-pad1_ net-_c1-pad2_ 30p
+q16 net-_q14-pad3_ net-_c1-pad2_ net-_q15-pad2_ npn_1
+q15 net-_q14-pad3_ net-_q15-pad2_ net-_q15-pad3_ npn_1
+r5 net-_q15-pad2_ net-_q12-pad3_ 50k
+r6 net-_q15-pad3_ net-_q12-pad3_ 50
+q17 net-_c1-pad2_ net-_q15-pad3_ net-_q12-pad3_ npn_1
+q18 net-_q10-pad3_ net-_c1-pad1_ net-_q18-pad3_ npn_1
+q20 net-_c1-pad1_ net-_q18-pad3_ net-_q20-pad3_ npn_1
+r9 net-_q18-pad3_ net-_q20-pad3_ 25
+r10 net-_q20-pad3_ net-_q19-pad3_ 50
+q19 net-_q12-pad3_ net-_q14-pad3_ net-_q19-pad3_ pnp_1
+* Control Statements
+
+.ends lm_741 \ No newline at end of file
diff --git a/Examples/NGHDL_Examples/PWM_Incremental/lm_741_Previous_Values.xml b/Examples/NGHDL_Examples/PWM_Incremental/lm_741_Previous_Values.xml
new file mode 100644
index 00000000..b61322bb
--- /dev/null
+++ b/Examples/NGHDL_Examples/PWM_Incremental/lm_741_Previous_Values.xml
@@ -0,0 +1 @@
+<KicadtoNgspice><source /><model /><devicemodel><q1><field>C:/Users/malli/eSim/src/deviceModelLibrary/Transistor/npn_1.lib</field></q1><q20><field>C:/Users/malli/eSim/src/deviceModelLibrary/Transistor/npn_1.lib</field></q20><q3><field>C:/Users/malli/eSim/src/deviceModelLibrary/Transistor/npn_1.lib</field></q3><q2><field>C:/Users/malli/eSim/src/deviceModelLibrary/Transistor/npn_1.lib</field></q2><q5><field>C:/Users/malli/eSim/src/deviceModelLibrary/Transistor/pnp_1.lib</field></q5><q4><field>C:/Users/malli/eSim/src/deviceModelLibrary/Transistor/pnp_1.lib</field></q4><q7><field>C:/Users/malli/eSim/src/deviceModelLibrary/Transistor/npn_1.lib</field></q7><q6><field>C:/Users/malli/eSim/src/deviceModelLibrary/Transistor/pnp_1.lib</field></q6><q9><field>C:/Users/malli/eSim/src/deviceModelLibrary/Transistor/pnp_1.lib</field></q9><q8><field>C:/Users/malli/eSim/src/deviceModelLibrary/Transistor/npn_1.lib</field></q8><q15><field>C:/Users/malli/eSim/src/deviceModelLibrary/Transistor/npn_1.lib</field></q15><q14><field>C:/Users/malli/eSim/src/deviceModelLibrary/Transistor/npn_1.lib</field></q14><q17><field>C:/Users/malli/eSim/src/deviceModelLibrary/Transistor/npn_1.lib</field></q17><q16><field>C:/Users/malli/eSim/src/deviceModelLibrary/Transistor/npn_1.lib</field></q16><q11><field>C:/Users/malli/eSim/src/deviceModelLibrary/Transistor/pnp_1.lib</field></q11><q10><field>C:/Users/malli/eSim/src/deviceModelLibrary/Transistor/pnp_1.lib</field></q10><q13><field>C:/Users/malli/eSim/src/deviceModelLibrary/Transistor/npn_1.lib</field></q13><q12><field>C:/Users/malli/eSim/src/deviceModelLibrary/Transistor/npn_1.lib</field></q12><q19><field>C:/Users/malli/eSim/src/deviceModelLibrary/Transistor/pnp_1.lib</field></q19><q18><field>C:/Users/malli/eSim/src/deviceModelLibrary/Transistor/npn_1.lib</field></q18></devicemodel><subcircuit /><analysis><ac><field1 name="Lin">true</field1><field2 name="Dec">false</field2><field3 name="Oct">false</field3><field4 name="Start Frequency" /><field5 name="Stop Frequency" /><field6 name="No. of points" /><field7 name="Start Fre Combo">Hz</field7><field8 name="Stop Fre Combo">Hz</field8></ac><dc><field1 name="Source 1" /><field2 name="Start" /><field3 name="Increment" /><field4 name="Stop" /><field5 name="Operating Point">0</field5><field6 name="Start Combo">Volts or Amperes</field6><field7 name="Increment Combo">Volts or Amperes</field7><field8 name="Stop Combo">Volts or Amperes</field8><field9 name="Source 2" /><field10 name="Start" /><field11 name="Increment" /><field12 name="Stop" /><field13 name="Start Combo">Volts or Amperes</field13><field14 name="Increment Combo">Volts or Amperes</field14><field15 name="Stop Combo">Volts or Amperes</field15></dc><tran><field1 name="Start Time" /><field2 name="Step Time" /><field3 name="Stop Time" /><field4 name="Start Combo">Sec</field4><field5 name="Step Combo">Sec</field5><field6 name="Stop Combo">Sec</field6></tran></analysis></KicadtoNgspice> \ No newline at end of file
diff --git a/Examples/NGHDL_Examples/PWM_Incremental/npn_1.lib b/Examples/NGHDL_Examples/PWM_Incremental/npn_1.lib
new file mode 100644
index 00000000..a1818ed8
--- /dev/null
+++ b/Examples/NGHDL_Examples/PWM_Incremental/npn_1.lib
@@ -0,0 +1,29 @@
+.model npn_1 NPN(
++ Vtf=1.7
++ Cjc=0.5p
++ Nc=2
++ Tr=46.91n
++ Ne=1.307
++ Cje=0.5p
++ Isc=0
++ Xtb=1.5
++ Rb=500
++ Rc=1
++ Tf=411.1p
++ Xti=3
++ Ikr=0
++ Bf=125
++ Fc=.5
++ Ise=14.34f
++ Br=6.092
++ Ikf=.2847
++ Mje=.377
++ Mjc=.3416
++ Vaf=74.03
++ Vjc=.75
++ Vje=.75
++ Xtf=3
++ Itf=.6
++ Is=14.34f
++ Eg=1.11
+) \ No newline at end of file
diff --git a/Examples/NGHDL_Examples/PWM_Incremental/pnp_1.lib b/Examples/NGHDL_Examples/PWM_Incremental/pnp_1.lib
new file mode 100644
index 00000000..a4ee06da
--- /dev/null
+++ b/Examples/NGHDL_Examples/PWM_Incremental/pnp_1.lib
@@ -0,0 +1,29 @@
+.model pnp_1 PNP(
++ Vtf=1.7
++ Cjc=1.5p
++ Nc=2
++ Tr=46.91n
++ Ne=1.307
++ Cje=0.3p
++ Isc=0
++ Xtb=1.5
++ Rb=250
++ Rc=1
++ Tf=411.1p
++ Xti=3
++ Ikr=0
++ Bf=25
++ Fc=.5
++ Ise=14.34f
++ Br=6.092
++ Ikf=.2847
++ Mje=.377
++ Mjc=.3416
++ Vaf=74.03
++ Vjc=.75
++ Vje=.75
++ Xtf=3
++ Itf=.6
++ Is=14.34f
++ Eg=1.11
+) \ No newline at end of file
diff --git a/Examples/NGHDL_Examples/README.md b/Examples/NGHDL_Examples/README.md
new file mode 100644
index 00000000..0842f75e
--- /dev/null
+++ b/Examples/NGHDL_Examples/README.md
@@ -0,0 +1,13 @@
+Instructions on how to use the following examples provided in this directory:
+
+These examples are supported by the NGHDL feature.
+In order to simulate the examples listed above, follow the below instructions.
+ (Note that NGHDL feature is only for Ubuntu Linux OS users as of on 27th November 2019)
+1. Go to eSim main window -> Click on NGHDL icon from the left toolbar, click on the 'browse' button, go to ../nghdl/Example/ and locate which example you wish to simulate.
+2. After opening the directory of desired example, locate the vhdl file , click on the "Open" button at the bottom of "Open File" window.
+3. Click on 'upload' button in the NGHDL pop-up window. File will be processed in the backend for few seconds. Now exit the NGHDL window.
+4. Open the desired example under eSim/Examples/NGHDL_Examples/ using the Open Project button, double click on the project when the project is loaded in the "Projects" window.
+5. Click on the "Simulation" button on eSim Main window.
+
+More examples will be added by eSim team along the way.
+If you have a good command on VHDL and electronics, please feel free to contribute.