From 025d9383ac64edd85afc09b3be588c653664bc7c Mon Sep 17 00:00:00 2001
From: container1234 <binary1234@hotmail.co.jp>
Date: Sat, 13 Jan 2018 16:46:44 +0900
Subject: [PATCH] Use double instead of float for FPRs

---
 .../Core/DolphinQt2/Debugger/RegisterColumn.cpp  | 13 +++++++++++++
 Source/Core/DolphinQt2/Debugger/RegisterColumn.h |  5 +++--
 .../Core/DolphinQt2/Debugger/RegisterWidget.cpp  | 16 +++++++++++++---
 3 files changed, 29 insertions(+), 5 deletions(-)

diff --git a/Source/Core/DolphinQt2/Debugger/RegisterColumn.cpp b/Source/Core/DolphinQt2/Debugger/RegisterColumn.cpp
index 7b37fba0dd..5ec0e2597d 100644
--- a/Source/Core/DolphinQt2/Debugger/RegisterColumn.cpp
+++ b/Source/Core/DolphinQt2/Debugger/RegisterColumn.cpp
@@ -74,6 +74,12 @@ void RegisterColumn::SetValue()
     std::memcpy(&value, &f, sizeof(u32));
     break;
   }
+  case RegisterDisplay::Double:
+  {
+    double f = text().toDouble(&valid);
+    std::memcpy(&value, &f, sizeof(u64));
+    break;
+  }
   }
 
   if (!valid)
@@ -117,6 +123,13 @@ void RegisterColumn::Update()
     text = QString::number(tmp);
     break;
   }
+  case RegisterDisplay::Double:
+  {
+    double tmp;
+    std::memcpy(&tmp, &m_value, sizeof(double));
+    text = QString::number(tmp);
+    break;
+  }
   }
 
   setText(text);
diff --git a/Source/Core/DolphinQt2/Debugger/RegisterColumn.h b/Source/Core/DolphinQt2/Debugger/RegisterColumn.h
index 54ad54747a..dfc58a41f5 100644
--- a/Source/Core/DolphinQt2/Debugger/RegisterColumn.h
+++ b/Source/Core/DolphinQt2/Debugger/RegisterColumn.h
@@ -13,7 +13,7 @@
 enum class RegisterType
 {
   gpr,         // General purpose registers, int (r0-r31)
-  fpr,         // General purpose registers, float (f0-f31)
+  fpr,         // Floating point registers, double (f0-f31)
   ibat,        // Instruction BATs (IBAT0-IBAT7)
   dbat,        // Data BATs (DBAT0-DBAT7)
   tb,          // Time base register
@@ -40,7 +40,8 @@ enum class RegisterDisplay
   Hex,
   SInt32,
   UInt32,
-  Float
+  Float,
+  Double
 };
 
 constexpr int DATA_TYPE = Qt::UserRole;
diff --git a/Source/Core/DolphinQt2/Debugger/RegisterWidget.cpp b/Source/Core/DolphinQt2/Debugger/RegisterWidget.cpp
index 8b6fa48bfb..53e902cb76 100644
--- a/Source/Core/DolphinQt2/Debugger/RegisterWidget.cpp
+++ b/Source/Core/DolphinQt2/Debugger/RegisterWidget.cpp
@@ -131,8 +131,9 @@ void RegisterWidget::ShowContextMenu()
       auto* view_int = menu->addAction(tr("Signed Integer"));
       auto* view_uint = menu->addAction(tr("Unsigned Integer"));
       auto* view_float = menu->addAction(tr("Float"));
+      auto* view_double = menu->addAction(tr("Double"));
 
-      for (auto* action : {view_hex, view_int, view_uint, view_float})
+      for (auto* action : {view_hex, view_int, view_uint, view_float, view_double})
       {
         action->setCheckable(true);
         action->setVisible(false);
@@ -153,6 +154,9 @@ void RegisterWidget::ShowContextMenu()
       case RegisterDisplay::Float:
         view_float->setChecked(true);
         break;
+      case RegisterDisplay::Double:
+        view_double->setChecked(true);
+        break;
       }
 
       switch (type)
@@ -165,7 +169,7 @@ void RegisterWidget::ShowContextMenu()
         break;
       case RegisterType::fpr:
         view_hex->setVisible(true);
-        view_float->setVisible(true);
+        view_double->setVisible(true);
         break;
       default:
         break;
@@ -195,6 +199,12 @@ void RegisterWidget::ShowContextMenu()
         m_updating = false;
       });
 
+      connect(view_double, &QAction::triggered, [this, item] {
+        m_updating = true;
+        item->SetDisplay(RegisterDisplay::Double);
+        m_updating = false;
+      });
+
       menu->addSeparator();
     }
   }
@@ -212,7 +222,7 @@ void RegisterWidget::PopulateTable()
     AddRegister(i, 0, RegisterType::gpr, "r" + std::to_string(i), [i] { return GPR(i); },
                 [i](u64 value) { GPR(i) = value; });
 
-    // General purpose registers (float)
+    // Floating point registers (double)
     AddRegister(i, 2, RegisterType::fpr, "f" + std::to_string(i), [i] { return riPS0(i); },
                 [i](u64 value) { riPS0(i) = value; });