private void selectInputButton_Click(object sender, EventArgs e)
{
InputRequested?.Invoke(this, new InputRequestedEventArgs(InputNumber));
}
internal void GetInput()
{
InputRequested?.Invoke(this, new ConsolePrintEventArgs("input code"));
}
private async Task ExecuteAsync()
{
instructionPointer = 0;
while (memory[instructionPointer] != HCF)
{
var(opCode, parameterModes) = CalculateOpCodeAndParameterModes(memory[instructionPointer]);
switch (opCode)
{
case ADD:
SetParameterValue(2, GetParameterValue(0) + GetParameterValue(1));
instructionPointer += 4;
break;
case MUL:
SetParameterValue(2, GetParameterValue(0) * GetParameterValue(1));
instructionPointer += 4;
break;
case INP:
//throw new InvalidOperationException("Encountered INP while inputs has ran out of data");
if (inputOverride.HasValue)
{
SetParameterValue(0, inputOverride.Value);
}
else
{
InputRequested?.Invoke(this, input);
SetParameterValue(0, await input.ReceiveAsync());
}
instructionPointer += 2;
break;
case OUT:
var o = GetParameterValue(0);
output.Post(o);
OutputList.Add(o);
OutputHappened?.Invoke(this, o);
instructionPointer += 2;
break;
case JNZ:
instructionPointer = GetParameterValue(0) != 0 ? GetParameterValue(1) : instructionPointer + 3;
break;
case JZ:
instructionPointer = GetParameterValue(0) == 0 ? GetParameterValue(1) : instructionPointer + 3;
break;
case LT:
SetParameterValue(2, GetParameterValue(0) < GetParameterValue(1) ? 1 : 0);
instructionPointer += 4;
break;
case EQ:
SetParameterValue(2, GetParameterValue(0) == GetParameterValue(1) ? 1 : 0);
instructionPointer += 4;
break;
case SETREL:
relativeBase += GetParameterValue(0);
instructionPointer += 2;
break;
default: throw new InvalidOperationException($"Invalid instruction at {instructionPointer} : {memory[instructionPointer]}");
// returns parameter value in both immediate and position mode
long GetParameterValue(int parameterIndex)
{
long parameter = ReadMemory(instructionPointer + parameterIndex + 1);
long result;
switch (parameterModes[parameterIndex])
{
case ParameterModes.Position:
result = ReadMemory(parameter);
break;
case ParameterModes.Immediate:
result = parameter;
break;
case ParameterModes.Relative:
result = ReadMemory(relativeBase + parameter);
break;
default:
throw new ArgumentOutOfRangeException();
}
return(result);
}
void SetParameterValue(int parameterIndex, long value)
{
var parameter = ReadMemory(instructionPointer + parameterIndex + 1);
int result;
switch (parameterModes[parameterIndex])
{
case ParameterModes.Position:
WriteMemory(parameter, value);
break;
case ParameterModes.Relative:
WriteMemory(relativeBase + parameter, value);
break;
default:
throw new ArgumentOutOfRangeException();
}
}
}
if (memory.Length < instructionPointer + 1)
{
throw new InvalidOperationException("Missing HCF");
}
}
}
public void RequestInput()
{
InputRequested?.Invoke();
}