From 25e85c6eed3c9457568de2d64ebfb32b1edfa0d0 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Karel=20Ko=C4=8D=C3=AD?= <cynerd@email.cz>
Date: Sun, 15 Apr 2018 10:41:26 +0200
Subject: Show cache statistics in Memory block in coreview

---
 qtmips_machine/cache.cpp | 5 +++++
 qtmips_machine/cache.h   | 4 ++++
 2 files changed, 9 insertions(+)

(limited to 'qtmips_machine')

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;
-- 
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