Show cache statistics in Memory block in coreview

2 files changed, 9 insertions, 0 deletions

diff --git a/qtmips_machine/cache.cpp b/qtmips_machine/cache.cpp
index d699cd6..d8c1fff 100644
--- a/qtmips_machine/cache.cpp
+++ b/qtmips_machine/cache.cpp
@@ -93,6 +93,9 @@ void Cache::reset() {
     // Zero hit and miss rate
     hitc = 0;
     missc = 0;
+    // Trigger signals
+    emit hit_update(hitc);
+    emit miss_update(missc);
 }
 
 const MachineConfigCache &Cache::config() const {
@@ -153,8 +156,10 @@ void Cache::access(std::uint32_t address, std::uint32_t **data, bool read) const
     // Update statistics and otherwise read from memory
     if (cd.valid) {
         hitc++;
+        emit hit_update(hitc);
     } else {
         missc++;
+        emit miss_update(missc);
         for (unsigned i = 0; i < cnf.blocks(); i++)
             cd.data[i] = mem->rword(base_address(tag, row) + (4*i));
     }
diff --git a/qtmips_machine/cache.h b/qtmips_machine/cache.h
index 1882c6c..8321bbf 100644
--- a/qtmips_machine/cache.h
+++ b/qtmips_machine/cache.h
@@ -27,6 +27,10 @@ public:
     const MachineConfigCache &config() const;
     // TODO getters for cells
 
+signals:
+    void hit_update(unsigned) const;
+    void miss_update(unsigned) const;
+
 private:
     MachineConfigCache cnf;
     Memory *mem;