1 files changed, 96 insertions, 0 deletions
diff --git a/qtmips_gui/cop0dock.cpp b/qtmips_gui/cop0dock.cpp
new file mode 100644
index 0000000..1070444
--- /dev/null
+++ b/qtmips_gui/cop0dock.cpp
@@ -0,0 +1,96 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*******************************************************************************
+ * QtMips - MIPS 32-bit Architecture Subset Simulator
+ *
+ * Implemented to support following courses:
+ *
+ *   B35APO - Computer Architectures
+ *   https://cw.fel.cvut.cz/wiki/courses/b35apo
+ *
+ *   B4M35PAP - Advanced Computer Architectures
+ *   https://cw.fel.cvut.cz/wiki/courses/b4m35pap/start
+ *
+ * Copyright (c) 2017-2019 Karel Koci<cynerd@email.cz>
+ * Copyright (c) 2019      Pavel Pisa <pisa@cmp.felk.cvut.cz>
+ *
+ * Faculty of Electrical Engineering (http://www.fel.cvut.cz)
+ * Czech Technical University        (http://www.cvut.cz/)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA  02110-1301, USA.
+ *
+ ******************************************************************************/
+
+#include "cop0dock.h"
+
+
+Cop0Dock::Cop0Dock(QWidget *parent) : QDockWidget(parent) {
+    scrollarea = new QScrollArea(this);
+    scrollarea->setWidgetResizable(true);
+    widg = new StaticTable(scrollarea);
+
+#define INIT(X, LABEL) do{ \
+        X = new QLabel("0x00000000", widg); \
+        X->setFixedSize(X->sizeHint()); \
+        X->setText(""); \
+        X->setTextInteractionFlags(Qt::TextSelectableByMouse); \
+        widg->addRow({new QLabel(LABEL, widg), X}); \
+    } while(false)
+
+    cop0reg[0] = nullptr;
+    for (int i = 1; i < machine::Cop0State::COP0REGS_CNT; i++)
+        INIT(cop0reg[i], machine::Cop0State::cop0reg_name((machine::Cop0State::Cop0Registers)i));
+#undef INIT
+    scrollarea->setWidget(widg);
+
+    setWidget(scrollarea);
+    setObjectName("Coprocessor0");
+    setWindowTitle("Coprocessor0");
+}
+
+Cop0Dock::~Cop0Dock() {
+    for (int i = 1; i < machine::Cop0State::COP0REGS_CNT; i++)
+        delete cop0reg[i];
+    delete widg;
+    delete scrollarea;
+}
+
+void Cop0Dock::setup(machine::QtMipsMachine *machine) {
+    if (machine == nullptr) {
+        // Reset data
+        for (int i = 1; i < machine::Cop0State::COP0REGS_CNT; i++)
+            cop0reg[i]->setText("");
+        return;
+    }
+
+    const machine::Cop0State *cop0state = machine->cop0state();
+    connect(cop0state, &machine::Cop0State::cop0reg_update,
+            this, &Cop0Dock::cop0reg_changed);
+
+    for (int i = 1; i < machine::Cop0State::COP0REGS_CNT; i++)
+        labelVal(cop0reg[i], cop0state->read_cop0reg((machine::Cop0State::Cop0Registers)i));
+}
+
+void Cop0Dock::cop0reg_changed(enum machine::Cop0State::Cop0Registers reg, std::uint32_t val) {
+    SANITY_ASSERT((uint)reg < machine::Cop0State::COP0REGS_CNT && (uint)reg,
+                  QString("Cop0Dock received signal with invalid cop0 register: ") +
+                  QString::number((uint)reg));
+    labelVal(cop0reg[(uint)reg], val);
+}
+
+void Cop0Dock::labelVal(QLabel *label, std::uint32_t value) {
+    QString t = QString("0x") + QString::number(value, 16);
+    label->setText(t);
+}