From 44678108e4c14773b3341e4fbc8042c7cabcf02b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Karel=20Ko=C4=8D=C3=AD?= <cynerd@email.cz>
Date: Sat, 30 Dec 2017 18:48:29 +0100
Subject: Drop jump predictions

Although there are branch likely instruction the whole mips instruction
set is designed around static jump predictions. The usage of delay slot
ensures that we don't have to handle jump predictions on cpu it self at
all. Adding it on top of that makes little to no sense although that was
the original plan.
---
 qtmips_gui/NewDialog.ui   | 44 +-------------------------------------------
 qtmips_gui/mainwindow.cpp |  3 +--
 qtmips_gui/newdialog.cpp  | 15 ---------------
 3 files changed, 2 insertions(+), 60 deletions(-)

diff --git a/qtmips_gui/NewDialog.ui b/qtmips_gui/NewDialog.ui
index f633d28..c1ec66c 100644
--- a/qtmips_gui/NewDialog.ui
+++ b/qtmips_gui/NewDialog.ui
@@ -7,7 +7,7 @@
     <x>0</x>
     <y>0</y>
     <width>558</width>
-    <height>306</height>
+    <height>254</height>
    </rect>
   </property>
   <property name="windowTitle">
@@ -131,48 +131,6 @@
          </property>
         </widget>
        </item>
-       <item>
-        <widget class="QCheckBox" name="flush_jump">
-         <property name="text">
-          <string>Flush pipeline on jump</string>
-         </property>
-        </widget>
-       </item>
-       <item>
-        <widget class="QGroupBox" name="prediction">
-         <property name="title">
-          <string>Jump prediction</string>
-         </property>
-         <property name="flat">
-          <bool>false</bool>
-         </property>
-         <property name="checkable">
-          <bool>true</bool>
-         </property>
-         <property name="checked">
-          <bool>false</bool>
-         </property>
-         <layout class="QVBoxLayout" name="verticalLayout_3">
-          <item>
-           <widget class="QRadioButton" name="prediction_static">
-            <property name="text">
-             <string>Static</string>
-            </property>
-            <property name="checked">
-             <bool>true</bool>
-            </property>
-           </widget>
-          </item>
-          <item>
-           <widget class="QRadioButton" name="prediction_one_dynamic">
-            <property name="text">
-             <string>One level dynamic</string>
-            </property>
-           </widget>
-          </item>
-         </layout>
-        </widget>
-       </item>
        <item>
         <spacer name="verticalSpacer">
          <property name="orientation">
diff --git a/qtmips_gui/mainwindow.cpp b/qtmips_gui/mainwindow.cpp
index 9e1902a..9384890 100644
--- a/qtmips_gui/mainwindow.cpp
+++ b/qtmips_gui/mainwindow.cpp
@@ -63,8 +63,7 @@ void MainWindow::create_core(machine::MachineConfig *config) {
     // Create machine view
     corescene = new CoreViewScene(coreview, machine);
 
-    //machine->set_speed(1000); // Set default speed to 1 sec
-    machine->set_speed(0);
+    machine->set_speed(1000); // Set default speed to 1 sec
 
     // Connect machine signals and slots
     connect(ui->actionRun, SIGNAL(triggered(bool)), machine, SLOT(play()));
diff --git a/qtmips_gui/newdialog.cpp b/qtmips_gui/newdialog.cpp
index 9d0e1ad..062eb2d 100644
--- a/qtmips_gui/newdialog.cpp
+++ b/qtmips_gui/newdialog.cpp
@@ -18,10 +18,6 @@ NewDialog::NewDialog(QWidget *parent, QSettings *settings) : QDialog(parent) {
     // Signals on Core tab
     CUSTOM_PRESET(ui->pipelined);
     CUSTOM_PRESET(ui->hazard);
-    CUSTOM_PRESET(ui->flush_jump);
-    CUSTOM_PRESET(ui->prediction);
-    CUSTOM_PRESET(ui->prediction_static);
-    CUSTOM_PRESET(ui->prediction_one_dynamic);
     // Signals on Memory tab
     CUSTOM_PRESET(ui->mem_protec_write);
     CUSTOM_PRESET(ui->mem_protec_exec);
@@ -83,9 +79,6 @@ void NewDialog::preset(bool value) {
         // Core settings
         ui->pipelined->setChecked(pip);
         ui->hazard->setChecked(pip);
-        ui->flush_jump->setChecked(pip);
-        ui->prediction->setChecked(pip);
-        ui->prediction_one_dynamic->setChecked(pip);
         // Memory settings
         ui->mem_protec_write->setChecked(true);
         ui->mem_protec_exec->setChecked(true);
@@ -116,10 +109,6 @@ void NewDialog::load_settings() {
     // Core tab
     LOAD_BUTTON(pipelined, false);
     LOAD_BUTTON(hazard, false);
-    LOAD_BUTTON(flush_jump, false);
-    LOAD_BUTTON(prediction, false);
-    LOAD_BUTTON(prediction_static, true);
-    LOAD_BUTTON(prediction_one_dynamic, false);
     // Memory tab
     LOAD_BUTTON(mem_protec_write, true);
     LOAD_BUTTON(mem_protec_exec, true);
@@ -137,10 +126,6 @@ void NewDialog::store_settings() {
     // Core tab
     STORE_BUTTON(pipelined);
     STORE_BUTTON(hazard);
-    STORE_BUTTON(flush_jump);
-    STORE_BUTTON(prediction);
-    STORE_BUTTON(prediction_static);
-    STORE_BUTTON(prediction_one_dynamic);
     // Memory tab
     STORE_BUTTON(mem_protec_write);
     STORE_BUTTON(mem_protec_exec);
-- 
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