diff --git a/npc/csrc/Flow/main.cpp b/npc/csrc/Flow/main.cpp
index 8124988..1d4cf0a 100644
--- a/npc/csrc/Flow/main.cpp
+++ b/npc/csrc/Flow/main.cpp
@@ -27,7 +27,7 @@ int main(int argc, char **argv, char **env) {
         m_trace->dump(sim_time);
 #endif
     }
-    for (sim_time = 0; sim_time < MAX_SIM_TIME; sim_time++) {
+    for (sim_time = 10; sim_time < MAX_SIM_TIME; sim_time++) {
         top->eval();
         top->clock = !top->clock;
 #ifdef VERILATOR_TRACE
diff --git a/npc/waveform.vcd b/npc/waveform.vcd
index 6271d0c..72c696a 100644
--- a/npc/waveform.vcd
+++ b/npc/waveform.vcd
@@ -130,15 +130,14 @@ b00000000000000000000000000000000 K
 b00000000000000000000000000000000 L
 b00000000000000000000000000000000 M
 1N
-0O
+1O
 b0000 P
 1Q
 0R
 b10000001 S
 #1
-b00000000000000000000000000001000 '
-b00000000000000000000000000000100 (
-b0000000100 )
+b10000000000000000000000000000100 '
+b10000000000000000000000000000000 (
 b00000000000010000100000100010011 *
 b00010 +
 b10000 ,
@@ -146,346 +145,196 @@ b10000 ,
 #2
 1N
 #3
-b00000000000000000000000000001100 '
-b00000000000000000000000000001000 (
-b0000001000 )
 0N
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-b0000001100 )
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-b00000000000000000000000000010000 (
-b0000010000 )
-b00000000000000000000000000000000 *
-b00000 +
-b00000 ,
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-b00000000000000000000000000010100 (
-b0000010100 )
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-b0000011000 )
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-b00000000000000000000000000100000 '
-b00000000000000000000000000011100 (
-b0000011100 )
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-b00000000000000000000000000100100 '
-b00000000000000000000000000100000 (
-b0000100000 )
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-b00000000000000000000000000101000 '
-b00000000000000000000000000100100 (
-b0000100100 )
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-b00000000000000000000000000101100 '
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-b0000101000 )
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-b0000101100 )
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-b0000110000 )
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-b0000111000 )
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-b0001000100 )
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-b0001110000 )
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-b0001111100 )
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-b00000000000000000000000010000100 '
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-b0010000000 )
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-b0010000100 )
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-b00000000000000000000000010001100 '
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-b0010001000 )
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