Added capability for instrumentation on all register accesses.

git-svn-id: http://www.cdkersey.com/harp/harptool@30 0246edb2-e076-4747-b392-db732a341fa2

src/include/core.h

@@ -13,6 +13,26 @@
 #include "mem.h"
 
 namespace Harp {
+  template <typename T> class Reg {
+  public:
+    Reg(): cpuId(0), regNum(0) {}
+    Reg(Word c, Word n): cpuId(c), regNum(n) {}
+
+    Reg &operator=(T r) { val = r; doWrite(); return *this; }
+    operator T() { doRead(); return val; }
+
+  private:
+    Word cpuId, regNum;
+    T val;
+
+#ifdef EMU_INSTRUMENTATION
+#error TODO: instrument Harp::Reg.
+#else
+    void doWrite() {}
+    void doRead() {}
+#endif
+  };
+
   class Core {
   public:
     Core(const ArchDef &a, Decoder &d, MemoryUnit &mem, Word id=0);
@@ -27,8 +47,8 @@ namespace Harp {
 
     Word pc, interruptEntry, shadowPc, id;
     Size activeThreads, shadowActiveThreads;
-    std::vector<std::vector<Word> > reg;
-    std::vector<std::vector<bool> > pred;
+    std::vector<std::vector<Reg<Word> > > reg;
+    std::vector<std::vector<Reg<bool> > > pred;
 
     std::vector<Word> shadowReg;
     std::vector<bool> shadowPReg;