public MachineControlsViewModel(SimpleSimulator simulator, IUserInputService userInputService, StateSaver stateSaver) : base(simulator)
{
OpenCommand = new Command(() =>
{
FileInfo file = userInputService.GetOpenFileName();
if (file != null)
{
Memory memory = stateSaver.LoadMemory(file);
for (int i = 0; i <= byte.MaxValue; i++)
simulator.Memory[(byte)i] = memory[(byte)i];
}
}, () => simulator.Machine.State != Machine.MachineState.Running, simulator);
SaveCommand = new Command(() =>
{
FileInfo file = userInputService.GetSaveFileName();
if (file != null)
stateSaver.SaveMemory(simulator.Memory, file);
}, () => simulator.Machine.State != Machine.MachineState.Running, simulator);
RunCommand = new Command(() => Task.Run(() => simulator.Machine.Run(25)), () => simulator.Machine.State != Machine.MachineState.Running, simulator);
StepCommand = new Command(() => simulator.Machine.Step(), () => true, simulator);
BreakCommand = new Command(() => simulator.Machine.Break(), () => simulator.Machine.State == Machine.MachineState.Running, simulator);
ClearMemoryCommand = new Command(() => simulator.Memory.Clear(), () => true, simulator);
ClearRegistersCommand = new Command(() => simulator.Registers.Clear(), () => true, simulator);
}
public void ShouldBeAbleToSaveMemoryState()
{
Memory expectedMemory = new Memory();
Random random = new Random();
for (int address = 0; address <= byte.MaxValue; address++)
expectedMemory[(byte)address] = (byte)random.Next(0x00, byte.MaxValue);
StateSaver stateSaver = new StateSaver();
stateSaver.SaveMemory(expectedMemory, _memorySaveFile);
FileAssert.Exists(_memorySaveFile);
Memory actualMemory = stateSaver.LoadMemory(_memorySaveFile);
for (int address = 0; address <= byte.MaxValue; address++)
Assert.AreEqual(expectedMemory[(byte)address], actualMemory[(byte)address]);
}