1 files changed, 119 insertions, 0 deletions
diff --git a/src/intersim/stats.cpp b/src/intersim/stats.cpp
new file mode 100644
index 0000000..50cecce
--- /dev/null
+++ b/src/intersim/stats.cpp
@@ -0,0 +1,119 @@
+#include "booksim.hpp"
+#include <math.h>
+#include <stdio.h>
+#include <iostream>
+
+#include "stats.hpp"
+
+Stats::Stats( Module *parent, const string &name,
+              double bin_size, int num_bins ) :
+Module( parent, name ),
+_num_bins( num_bins ), _bin_size( bin_size )
+{
+   _hist = new int [_num_bins];
+
+   Clear( );
+}
+
+Stats::~Stats( )
+{
+   delete [] _hist;
+}
+
+void Stats::Clear( )
+{
+   _num_samples = 0;
+   _sample_sum  = 0.0;
+
+   for ( int b = 0; b < _num_bins; ++b ) {
+      _hist[b] = 0;
+   }
+
+   _reset = true;
+}
+
+double Stats::Average( ) const
+{
+   return _sample_sum / (double)_num_samples;
+}
+
+double Stats::Min( ) const
+{
+   return _min;
+}
+
+double Stats::Max( ) const
+{
+   return _max;
+}
+
+int Stats::NumSamples( ) const
+{
+   return _num_samples;
+}
+
+void Stats::AddSample( double val )
+{
+   int b;
+
+   _num_samples++;
+   _sample_sum += val;
+
+   if ( _reset ) {
+      _reset = false;
+      _max = val;
+      _min = val;
+   } else {
+      if ( val > _max ) {
+         _max = val;
+      }
+      if ( val < _min ) {
+         _min = val;
+      }
+   }
+
+   b = (int)floor( val / _bin_size );
+
+   if ( b < 0 ) {
+      b = 0;
+   } else if ( b >= _num_bins ) {
+      b = _num_bins - 1;
+   }
+
+   _hist[b]++;
+}
+
+void Stats::AddSample( int val )
+{
+   AddSample( (double)val );
+}
+
+void Stats::Display( ) const
+{
+   int b;
+
+   if (_bin_size != 1.0 ) {
+      cout<<_fullname<<"_";
+      printf("bins = [ ");
+      for ( b = 0; b < _num_bins; ++b ) {
+         printf("%d ",  b* (unsigned)_bin_size);
+      }
+      printf("];\n");
+   }
+
+   cout<<_fullname<<"_";
+   printf("freq = [ ");
+   for ( b = 0; b < _num_bins; ++b ) {
+      printf("%d ", (unsigned) _hist[b]);
+   }
+   printf("];\n");
+}
+
+bool Stats::NeverUsed() const
+{
+   if ( _reset ) {
+      return true;
+   } else {
+      return false;
+   }
+}