public void TestSetAndReadBytes() //MOV AL, BH
{
byte[] test;
RegistersController registry = new GeneralPurposeRegisters();
registry.SetBytesToRegistry("AX", 0, 1);
test = registry.GetRegistry("AX");
Assert.AreEqual(BitConverter.ToUInt16(test), 256);
registry.SetBytesToRegistry("BH", 0, 255);
test = registry.GetRegistry("BX");
Assert.AreEqual(BitConverter.ToUInt16(test), 0);
registry.SetBytesToRegistry("CL", 1, 0, 1, 0, 1, 0);
test = registry.GetRegistry("CX");
Assert.AreEqual(BitConverter.ToUInt16(test), 1);
//Only one argument should set to lower byte.
registry.SetBytesToRegistry("DX", 255);
test = registry.GetRegistry("DX");
Assert.AreEqual(BitConverter.ToUInt16(test), 255);
//We've set 255 to lower byte and now we are setting 2 to higher.
//It's becouse we can send even 32bit to DH, then it will take second byte if array may represent 16bit.
registry.SetBytesToRegistry("DH", 2);
test = registry.GetRegistry("DX");
Assert.AreEqual(BitConverter.ToUInt16(test), (255 + 2 * 256));
}
private void Reset_Click(object sender, RoutedEventArgs e)
{
generalPurposeRegisters.SetBytesToRegistry("AX", 0);
generalPurposeRegisters.SetBytesToRegistry("BX", 0);
generalPurposeRegisters.SetBytesToRegistry("CX", 0);
generalPurposeRegisters.SetBytesToRegistry("DX", 0);
Output.Text = "General purpose registers cleared.";
}
public void TestXCHG()
{
GeneralPurposeRegisters registersMock = new GeneralPurposeRegisters();
LoggerMock loggerMock = new LoggerMock();
RegistryCommander registryCommand = new RegistryCommander(loggerMock);
XCHG xchg = new XCHG(registersMock);
MOV mov = new MOV(registersMock);
AssignToRegistry assignTo = new AssignToRegistry(registersMock);
registryCommand.AddHandler(xchg);
registryCommand.AddHandler(mov);
registryCommand.AddHandler(assignTo);
byte[] first;
byte[] second;
registersMock.SetBytesToRegistry("AX", BitConverter.GetBytes(Convert.ToUInt16(256)));
registersMock.SetBytesToRegistry("BX", BitConverter.GetBytes(Convert.ToUInt16(255)));
registryCommand.InputCommand("XchG aX, Bx");
first = registersMock.GetRegistry("AX");
second = registersMock.GetRegistry("BX");
Assert.AreEqual(first[0], 255);
Assert.AreEqual(first[1], 0);
Assert.AreEqual(second[0], 0);
Assert.AreEqual(second[1], 1);
Assert.AreEqual(loggerMock.outputResult, "AX exchanged with BX.");
registryCommand.InputCommand("xchG al, cl");
first = registersMock.GetRegistry("AX");
second = registersMock.GetRegistry("CX");
Assert.AreEqual(first[0], 0);
Assert.AreEqual(first[1], 0);
Assert.AreEqual(second[0], 255);
Assert.AreEqual(second[1], 0);
Assert.AreEqual(loggerMock.outputResult, "AL exchanged with CL.");
registersMock.SetBytesToRegistry("DX", BitConverter.GetBytes(65535));
registryCommand.InputCommand("XchG bh, dh");
first = registersMock.GetRegistry("BX");
second = registersMock.GetRegistry("DX");
Assert.AreEqual(first[0], 0);
Assert.AreEqual(first[1], 255);
Assert.AreEqual(second[0], 255);
Assert.AreEqual(second[1], 1);
Assert.AreEqual(loggerMock.outputResult, "BH exchanged with DH.");
registryCommand.InputCommand("xchg cx, dx");
first = registersMock.GetRegistry("CX");
second = registersMock.GetRegistry("DX");
Assert.AreEqual(first[0], 255);
Assert.AreEqual(first[1], 1);
Assert.AreEqual(second[0], 255);
Assert.AreEqual(second[1], 0);
Assert.AreEqual(loggerMock.outputResult, "CX exchanged with DX.");
registryCommand.InputCommand("xchG dl, ch");
first = registersMock.GetRegistry("DX");
second = registersMock.GetRegistry("CX");
Assert.AreEqual(first[0], 1);
Assert.AreEqual(first[1], 0);
Assert.AreEqual(second[0], 255);
Assert.AreEqual(second[1], 255);
Assert.AreEqual(loggerMock.outputResult, "DL exchanged with CH.");
}