ext: add the source code for DSENT

This patch adds a tool called DSENT to the ext/ directory.  DSENT
is a tool that models power and area for on-chip networks.  The next
patch adds a script for using the tool.

1 files changed, 20 insertions, 0 deletions

diff --git a/ext/dsent/util/Constants.cc b/ext/dsent/util/Constants.cc
new file mode 100644
index 000000000..6af0a275a
--- /dev/null
+++ b/ext/dsent/util/Constants.cc
@@ -0,0 +1,20 @@
+
+#include "util/Constants.h"
+
+namespace DSENT
+{
+    // PI
+    const double Constants::pi = 3.14159;       //PI
+    // Boltzman's
+    const double Constants::k = 1.3806503e-23;  // m^2 * kg / (s^2 * K);
+    // Speed of light
+    const double Constants::c = 2.9979246e8;    // m/s
+    // Charge of electron
+    const double Constants::q = 1.602e-19;      // C
+    // Permitivity of free space
+    const double Constants::e0 = 8.85e-12;
+    // Permitivity ratio of silicon
+    const double Constants::es = 11.7;
+
+} // namespace DSENT
+