private void Disassemble(DisassemblyMode mode, ushort startAddress, ushort length)
{
if (startAddress > Memory.Size)
{
throw new InvalidOperationException(String.Format("Start address must be less than the size of system memory ({0}).", Helpers.ToOctal(Memory.Size)));
}
ushort endAddress = (ushort)Math.Min(Memory.Size, startAddress + length);
ushort address = startAddress;
while (address < endAddress)
{
string disassembly = string.Empty;
int size = 0;
try
{
switch (mode)
{
case DisassemblyMode.Processor:
size = 1;
disassembly = Processor.Disassemble(address);
break;
case DisassemblyMode.DisplayAuto:
disassembly = DisplayProcessor.Disassemble(address, DisplayProcessorMode.Indeterminate, out size);
break;
case DisassemblyMode.DisplayProcessor:
disassembly = DisplayProcessor.Disassemble(address, DisplayProcessorMode.Processor, out size);
break;
case DisassemblyMode.DisplayIncrement:
disassembly = DisplayProcessor.Disassemble(address, DisplayProcessorMode.Increment, out size);
break;
case DisassemblyMode.DisplayCompact:
disassembly = DisplayProcessor.Disassemble(address, DisplayProcessorMode.CompactAddressing, out size);
break;
}
}
catch
{
// this can happen if the data is not a valid instruction
disassembly = "<invalid instruction>";
size = 1;
}
Console.WriteLine("{0}\\{1} {2}", Helpers.ToOctal(address), Helpers.ToOctal(Memory.Fetch(address)), disassembly);
address += (ushort)size;
}
}
public ImlacSystem()
{
_memory = new Memory(this);
_paperTapeReader = new PaperTapeReader(this);
_tty = new TTY(this);
_keyboard = new Keyboard(this);
_clock = new AddressableClock(this);
_interruptFacility = new InterruptFacility(this);
_displayProcessor = new DisplayProcessor(this);
_processor = new Processor(this);
// Register IOT devices
_processor.RegisterDeviceIOTs(_displayProcessor);
_processor.RegisterDeviceIOTs(_paperTapeReader);
_processor.RegisterDeviceIOTs(_tty);
_processor.RegisterDeviceIOTs(_keyboard);
_processor.RegisterDeviceIOTs(_clock);
_processor.RegisterDeviceIOTs(_interruptFacility);
}
