Initial commit

Adding work done so far.

5 files changed, 148 insertions, 0 deletions

diff --git a/qtmips_machine/tests/testmemory.cpp b/qtmips_machine/tests/testmemory.cpp
new file mode 100644
index 0000000..991e1f1
--- /dev/null
+++ b/qtmips_machine/tests/testmemory.cpp
@@ -0,0 +1,61 @@
+#include "tst_machine.h"
+#include "memory.h"
+
+void MachineTests::memory_data() {
+    QTest::addColumn<std::uint32_t>("address");
+
+    QTest::newRow("memory begin") << (std::uint32_t)0x00;
+    QTest::newRow("memory end") << (std::uint32_t)0xFFFFFFFC;
+    QTest::newRow("memory midle start") << (std::uint32_t)0xFFFF00;
+    QTest::newRow("memory midle end") << (std::uint32_t)0xFFFFFF;
+}
+
+void MachineTests::memory() {
+    Memory m;
+
+   QFETCH(std::uint32_t, address);
+
+   // Uninitialize memory should read as zero
+   QCOMPARE(m.read_byte(address), (std::uint8_t)0);
+   QCOMPARE(m.read_hword(address), (std::uint16_t)0);
+   QCOMPARE(m.read_word(address), (std::uint32_t)0);
+   // Just a byte
+   m.write_byte(address, 0x42);
+   QCOMPARE(m.read_byte(address), (std::uint8_t)0x42);
+   // Half word
+   m.write_hword(address, 0x4243);
+   QCOMPARE(m.read_hword(address), (std::uint16_t)0x4243);
+   // Word
+   m.write_word(address, 0x42434445);
+   QCOMPARE(m.read_word(address), (std::uint32_t)0x42434445);
+}
+
+void MachineTests::memory_section_data() {
+    QTest::addColumn<std::uint32_t>("address");
+
+    QTest::newRow("memory begin") << (std::uint32_t)0x00;
+    QTest::newRow("memory end") << (std::uint32_t)0xFFFFFFFF;
+    QTest::newRow("memory midle start") << (std::uint32_t)0xFFFF00;
+    QTest::newRow("memory midle end") << (std::uint32_t)0xFFFFFF;
+}
+
+void MachineTests::memory_section() {
+   Memory m;
+
+   QFETCH(std::uint32_t, address);
+
+   // First section shouldn't exists
+   QCOMPARE(m.get_section(address, false), (MemorySection*)nullptr);
+   // Create section
+   MemorySection *s = m.get_section(address, true);
+   QVERIFY(s != nullptr);
+
+   // Write some data to memory
+   m.write_byte(address, 0x42);
+   // Read it trough section (mask bits outside of the memory section)
+   QCOMPARE(s->read_byte(address & ((1 << MEMORY_SECTION_BITS)  - 1)), (std::uint8_t)0x42);
+   // Write some other data trough section
+   s->write_byte(address & ((1 << MEMORY_SECTION_BITS)  - 1), 0x66);
+   // Read trough memory
+   QCOMPARE(m.read_byte(address), (std::uint8_t)0x66);
+}
diff --git a/qtmips_machine/tests/testregisters.cpp b/qtmips_machine/tests/testregisters.cpp
new file mode 100644
index 0000000..4430beb
--- /dev/null
+++ b/qtmips_machine/tests/testregisters.cpp
@@ -0,0 +1,39 @@
+#include "tst_machine.h"
+#include <qtmipsexception.h>
+#include <registers.h>
+
+void MachineTests::registers_gp0() {
+    Registers r;
+    QCOMPARE(r.read_gp(0), (unsigned)0);
+    r.write_gp(0, 0xff);
+    QCOMPARE(r.read_gp(0), (unsigned)0);
+}
+
+void MachineTests::registers_rw_gp() {
+    Registers r;
+    for (int i = 1; i < 32; i++) {
+        r.write_gp(i, 0xf00 + i);
+        QCOMPARE(r.read_gp(i), (unsigned)(0xf00 + i));
+    }
+}
+
+void MachineTests::registers_rw_hi_lo() {
+    Registers r;
+    r.write_hi_lo(false, 0xee);
+    r.write_hi_lo(true, 0xaa);
+    QCOMPARE(r.read_hi_lo(false), (unsigned)0xee);
+    QCOMPARE(r.read_hi_lo(true), (unsigned)0xaa);
+}
+
+void MachineTests::registers_pc() {
+    Registers r;
+    QCOMPARE(r.read_pc(), (unsigned)0x80020000); // Check initial pc address
+    QCOMPARE(r.pc_inc(), (unsigned)0x80020004);
+    QCOMPARE(r.pc_inc(), (unsigned)0x80020008);
+    QCOMPARE(r.pc_jmp(-0x8), (unsigned)0x80020000);
+    QCOMPARE(r.pc_jmp(0xC), (unsigned)0x8002000C);
+    r.pc_abs_jmp(0x80020100);
+    QCOMPARE(r.read_pc(), (unsigned)0x80020100);
+    QVERIFY_EXCEPTION_THROWN(r.pc_jmp(0x1), QtMipsExceptionUnalignedJump);
+    QVERIFY_EXCEPTION_THROWN(r.pc_abs_jmp(0x80020101), QtMipsExceptionUnalignedJump);
+}
diff --git a/qtmips_machine/tests/tests.pro b/qtmips_machine/tests/tests.pro
new file mode 100644
index 0000000..9477e08
--- /dev/null
+++ b/qtmips_machine/tests/tests.pro
@@ -0,0 +1,24 @@
+QT += testlib
+QT -= gui
+
+TARGET = tst_machine
+CONFIG += console
+CONFIG -= app_bundle
+CONFIG += c++11
+
+TEMPLATE = app
+
+LIBS += -L$$OUT_PWD/../ -lqtmips_machine
+INCLUDEPATH += $$PWD/..
+DEPENDPATH += $$PWD/..
+QMAKE_CXXFLAGS += -std=c++0x
+
+DEFINES += QT_DEPRECATED_WARNINGS
+
+SOURCES += tst_machine.cpp \
+    testmemory.cpp \
+    testregisters.cpp
+
+HEADERS += tst_machine.h
+
+DEFINES += SRCDIR=\\\"$$PWD/\\\"
diff --git a/qtmips_machine/tests/tst_machine.cpp b/qtmips_machine/tests/tst_machine.cpp
new file mode 100644
index 0000000..d5fc354
--- /dev/null
+++ b/qtmips_machine/tests/tst_machine.cpp
@@ -0,0 +1,3 @@
+#include "tst_machine.h"
+
+QTEST_GUILESS_MAIN(MachineTests)
diff --git a/qtmips_machine/tests/tst_machine.h b/qtmips_machine/tests/tst_machine.h
new file mode 100644
index 0000000..214ab88
--- /dev/null
+++ b/qtmips_machine/tests/tst_machine.h
@@ -0,0 +1,21 @@
+#ifndef TST_MACHINE_H
+#define TST_MACHINE_H
+
+#include <QtTest>
+
+class MachineTests : public QObject {
+    Q_OBJECT
+private Q_SLOTS:
+    // Registers
+    void registers_gp0();
+    void registers_rw_gp();
+    void registers_rw_hi_lo();
+    void registers_pc();
+    // Memory
+    void memory();
+    void memory_data();
+    void memory_section();
+    void memory_section_data();
+};
+
+#endif // TST_MACHINE_H