simX refactoring + removed oldRTL + CSR updates

simX/instr.cpp

@@ -0,0 +1,23 @@
+#include <iostream>
+#include <stdlib.h>
+#include <unistd.h>
+#include <math.h>
+#include <fcntl.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+
+#include "instr.h"
+
+using namespace vortex;
+
+void Instr::setVlmul(Word lmul) { 
+  vlmul_ = std::pow(2, lmul);
+}
+
+void Instr::setVsew(Word sew) { 
+  vsew_ = std::pow(2, 3+sew); 
+}
+
+void Instr::setVediv(Word ediv) { 
+  vediv_ = std::pow(2,ediv);
+}