Add interrupt flag to CPU
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Seth Morabito committed
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3d36cd5460
commit
0c5035fc56
3 files changed
+151
-102
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@@ -10,113 +10,129 @@ import com.loomcom.symon.exceptions.*;
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*/
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public class BusTest extends TestCase {
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public BusTest(String testName) {
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super(testName);
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}
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public static Test suite() {
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return new TestSuite(BusTest.class);
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}
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public void testCreatingWithStartAndEndAddresses() {
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Bus b = null;
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b = new Bus(0x00, 0xff);
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assertEquals(0x00, b.startAddress());
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assertEquals(0xff, b.endAddress());
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b = new Bus(0x20, 0xea);
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assertEquals(0x20, b.startAddress());
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assertEquals(0xea, b.endAddress());
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}
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public void testCreatingWithSize() {
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Bus b = null;
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b = new Bus(256);
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assertEquals(0x00, b.startAddress());
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assertEquals(0xff, b.endAddress());
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b = new Bus(4096);
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assertEquals(0x000, b.startAddress());
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assertEquals(0xfff, b.endAddress());
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b = new Bus(65536);
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assertEquals(0x0000, b.startAddress());
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assertEquals(0xffff, b.endAddress());
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}
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public void testAddDevice() throws MemoryRangeException {
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Device memory = new Memory(0x0000, 0x00ff, true);
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Device rom = new Memory(0x0100, 0x02ff, false);
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Bus b = new Bus(0x0000, 0xffff);
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assertEquals(0, b.getDevices().size());
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b.addDevice(memory);
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assertEquals(1, b.getDevices().size());
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b.addDevice(rom);
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assertEquals(2, b.getDevices().size());
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}
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public void testOverlappingDevicesShouldFail() throws MemoryRangeException {
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Device memory = new Memory(0x0000, 0x0100, true);
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Device rom = new Memory(0x00ff, 0x0200, false);
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Bus b = new Bus(0x0000, 0xffff);
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b.addDevice(memory);
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try {
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b.addDevice(rom);
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fail("Should have thrown a MemoryRangeException.");
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} catch (MemoryRangeException ex) {
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// expected
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public BusTest(String testName) {
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super(testName);
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}
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}
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public void testIsCompleteWithFirstDeviceNotStartingAtStartAddress() throws MemoryRangeException {
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Device memory = new Memory(0x00ff, 0xff00, true);
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public static Test suite() {
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return new TestSuite(BusTest.class);
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}
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Bus b = new Bus(0x0000, 0xffff);
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assertFalse("Address space was unexpectedly complete!", b.isComplete());
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b.addDevice(memory);
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assertFalse("Address space was unexpectedly complete!", b.isComplete());
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}
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public void testCreatingWithStartAndEndAddresses() {
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Bus b = null;
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public void testIsCompleteWithOneDevice() throws MemoryRangeException {
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Device memory = new Memory(0x0000, 0xffff, true);
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Bus b = new Bus(0x0000, 0xffff);
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assertFalse("Address space was unexpectedly complete!", b.isComplete());
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b.addDevice(memory);
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assertTrue("Address space should have been complete!", b.isComplete());
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}
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b = new Bus(0x00, 0xff);
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assertEquals(0x00, b.startAddress());
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assertEquals(0xff, b.endAddress());
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public void testIsCompleteWithTwoDevices() throws MemoryRangeException {
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Device memory = new Memory(0x0000, 0x7fff, true);
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Device rom = new Memory(0x8000, 0xffff, false);
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b = new Bus(0x20, 0xea);
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assertEquals(0x20, b.startAddress());
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assertEquals(0xea, b.endAddress());
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}
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Bus b = new Bus(0x0000, 0xffff);
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assertFalse("Address space was unexpectedly complete!", b.isComplete());
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b.addDevice(memory);
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assertFalse("Address space was unexpectedly complete!", b.isComplete());
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b.addDevice(rom);
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assertTrue("Address space should have been complete!", b.isComplete());
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}
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public void testCreatingWithSize() {
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Bus b = null;
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public void testIsCompleteWithThreeDevices() throws MemoryRangeException {
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Device memory = new Memory(0x0000, 0x7fff, true);
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Device rom1 = new Memory(0x8000, 0xBfff, false);
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Device rom2 = new Memory(0xC000, 0xffff, false);
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b = new Bus(256);
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assertEquals(0x00, b.startAddress());
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assertEquals(0xff, b.endAddress());
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Bus b = new Bus(0x0000, 0xffff);
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assertFalse("Address space was unexpectedly complete!", b.isComplete());
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b.addDevice(memory);
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assertFalse("Address space was unexpectedly complete!", b.isComplete());
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b.addDevice(rom1);
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assertFalse("Address space was unexpectedly complete!", b.isComplete());
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b.addDevice(rom2);
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assertTrue("Address space should have been complete!", b.isComplete());
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}
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b = new Bus(4096);
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assertEquals(0x000, b.startAddress());
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assertEquals(0xfff, b.endAddress());
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b = new Bus(65536);
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assertEquals(0x0000, b.startAddress());
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assertEquals(0xffff, b.endAddress());
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}
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public void testAddDevice() throws MemoryRangeException {
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Device memory = new Memory(0x0000, 0x00ff, true);
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Device rom = new Memory(0x0100, 0x02ff, false);
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Bus b = new Bus(0x0000, 0xffff);
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assertEquals(0, b.getDevices().size());
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b.addDevice(memory);
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assertEquals(1, b.getDevices().size());
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b.addDevice(rom);
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assertEquals(2, b.getDevices().size());
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}
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public void testOverlappingDevicesShouldFail() throws MemoryRangeException {
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Device memory = new Memory(0x0000, 0x0100, true);
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Device rom = new Memory(0x00ff, 0x0200, false);
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Bus b = new Bus(0x0000, 0xffff);
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b.addDevice(memory);
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try {
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b.addDevice(rom);
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fail("Should have thrown a MemoryRangeException.");
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} catch (MemoryRangeException ex) {
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// expected
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}
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}
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public void testIsCompleteWithFirstDeviceNotStartingAtStartAddress() throws MemoryRangeException {
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Device memory = new Memory(0x00ff, 0xff00, true);
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Bus b = new Bus(0x0000, 0xffff);
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assertFalse("Address space was unexpectedly complete!", b.isComplete());
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b.addDevice(memory);
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assertFalse("Address space was unexpectedly complete!", b.isComplete());
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}
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public void testIsCompleteWithOneDevice() throws MemoryRangeException {
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Device memory = new Memory(0x0000, 0xffff, true);
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Bus b = new Bus(0x0000, 0xffff);
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assertFalse("Address space was unexpectedly complete!", b.isComplete());
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b.addDevice(memory);
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assertTrue("Address space should have been complete!", b.isComplete());
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}
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public void testIsCompleteWithTwoDevices() throws MemoryRangeException {
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Device memory = new Memory(0x0000, 0x7fff, true);
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Device rom = new Memory(0x8000, 0xffff, false);
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Bus b = new Bus(0x0000, 0xffff);
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assertFalse("Address space was unexpectedly complete!", b.isComplete());
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b.addDevice(memory);
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assertFalse("Address space was unexpectedly complete!", b.isComplete());
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b.addDevice(rom);
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assertTrue("Address space should have been complete!", b.isComplete());
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}
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public void testIsCompleteWithThreeDevices() throws MemoryRangeException {
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Device memory = new Memory(0x0000, 0x7fff, true);
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Device rom1 = new Memory(0x8000, 0xBfff, false);
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Device rom2 = new Memory(0xC000, 0xffff, false);
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Bus b = new Bus(0x0000, 0xffff);
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assertFalse("Address space was unexpectedly complete!", b.isComplete());
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b.addDevice(memory);
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assertFalse("Address space was unexpectedly complete!", b.isComplete());
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b.addDevice(rom1);
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assertFalse("Address space was unexpectedly complete!", b.isComplete());
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b.addDevice(rom2);
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assertTrue("Address space should have been complete!", b.isComplete());
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}
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public void testSetAndClearInterrupt() throws Exception {
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Bus b = new Bus(0x0000, 0xffff);
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Cpu c = new Cpu();
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b.addCpu(c);
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assertFalse(c.getCpuState().interruptAsserted);
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b.assertInterrupt();
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assertTrue(c.getCpuState().interruptAsserted);
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b.clearInterrupt();
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assertFalse(c.getCpuState().interruptAsserted);
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}
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}
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