Add support for goto to selected symbol address.

Signed-off-by: Pavel Pisa <pisa@cmp.felk.cvut.cz>

1 files changed, 98 insertions, 0 deletions

diff --git a/qtmips_machine/symboltable.cpp b/qtmips_machine/symboltable.cpp
new file mode 100644
index 0000000..f22acaa
--- /dev/null
+++ b/qtmips_machine/symboltable.cpp
@@ -0,0 +1,98 @@
+// 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 "symboltable.h"
+
+using namespace machine;
+
+SymbolTableEntry::SymbolTableEntry(QString name, std::uint32_t value,
+            std::uint32_t size, unsigned char info, unsigned char other) {
+    this->name = name;
+    this->value = value;
+    this->size = size;
+    this->info = info;
+    this->other = other;
+}
+
+SymbolTable::SymbolTable(QObject *parent) : QObject(parent),
+                          map_value_to_symbol(), map_name_to_symbol() {
+}
+
+SymbolTable::~SymbolTable() {
+    while (!map_value_to_symbol.isEmpty()) {
+        SymbolTableEntry *p_ste = map_value_to_symbol.first();
+        p_ste = map_value_to_symbol.take(p_ste->value);
+        map_name_to_symbol.remove(p_ste->name);
+        delete p_ste;
+    }
+}
+
+void SymbolTable::add_symbol(QString name, std::uint32_t value, std::uint32_t size,
+          unsigned char info, unsigned char other) {
+    SymbolTableEntry *p_ste = new SymbolTableEntry(name, value, size, info, other);
+    map_value_to_symbol.insert(value, p_ste);
+    map_name_to_symbol.insert(name, p_ste);
+}
+
+bool SymbolTable::name_to_value(std::uint32_t &value, QString name) const {
+    SymbolTableEntry *p_ste = map_name_to_symbol.value(name);
+    if (p_ste == nullptr) {
+        value = 0;
+        return false;
+    }
+    value = p_ste->value;
+    return true;
+}
+
+bool SymbolTable::value_to_name(QString &name, std::uint32_t value) const {
+    SymbolTableEntry *p_ste = map_value_to_symbol.value(value);
+    if (p_ste == nullptr) {
+        name = "";
+        return false;
+    }
+    name = p_ste->name;
+    return true;
+}
+
+QStringList *SymbolTable::names() const {
+    QStringList *l = new QStringList();
+
+    auto i = map_name_to_symbol.begin();
+    while (i != map_name_to_symbol.end()) {
+        l->append(i.value()->name);
+        i++;
+    }
+    return l;
+}