public Queue <long> RunToStop(Queue <long> input)
{
var toSend = new Queue <long>();
while (true)
{
if (this._index >= this._instructions.Count)
{
return(toSend);
}
var instruction = this._instructions[this._index];
var parts = instruction.Split();
string toChange;
long oldValue;
long operand;
switch (parts[0])
{
case "snd":
this.SendCount++;
toSend.Enqueue(Day18.CheckRegister(this._registers, parts[1]));
break;
case "set":
operand = Day18.CheckRegister(this._registers, parts[2]);
this._registers[parts[1]] = operand;
break;
case "add":
toChange = parts[1];
oldValue = Day18.CheckRegister(this._registers, toChange);
operand = Day18.CheckRegister(this._registers, parts[2]);
this._registers[toChange] = oldValue + operand;
break;
case "mul":
toChange = parts[1];
oldValue = Day18.CheckRegister(this._registers, toChange);
operand = Day18.CheckRegister(this._registers, parts[2]);
this._registers[toChange] = oldValue * operand;
break;
case "mod":
toChange = parts[1];
oldValue = Day18.CheckRegister(this._registers, toChange);
operand = Day18.CheckRegister(this._registers, parts[2]);
this._registers[toChange] = oldValue % operand;
break;
case "rcv":
if (input.Count > 0)
{
operand = input.Dequeue();
toChange = parts[1];
this._registers[toChange] = operand;
}
else
{
return(toSend);
}
break;
case "jgz":
toChange = parts[1];
oldValue = Day18.CheckRegister(this._registers, toChange);
operand = Day18.CheckRegister(this._registers, parts[2]);
if (oldValue > 0)
{
this._index += (int)operand;
continue;
}
break;
}
this._index++;
}
}
