private static void SolvePart1(string fileText)
{
var instructions = fileText.SplitIntoLines()
.Select(Part1Instruction.Parse);
var computer = new Part1ProgramState();
computer.LoadProgram(instructions);
var answer = computer.ExecuteUntilRecover();
Output.Answer(answer);
}
public void Execute(Part1ProgramState programState)
{
switch (_opCode)
{
case "snd":
programState.PlaySound(GetOperandValue(_op1, programState));
break;
case "set":
programState.SetRegisterValue(_op1, GetOperandValue(_op2, programState));
break;
case "add":
var sum = GetOperandValue(_op1, programState) + GetOperandValue(_op2, programState);
programState.SetRegisterValue(_op1, sum);
break;
case "mul":
var prod = (long)GetOperandValue(_op1, programState) * GetOperandValue(_op2, programState);
programState.SetRegisterValue(_op1, prod);
break;
case "mod":
var mod = GetOperandValue(_op1, programState) % GetOperandValue(_op2, programState);
programState.SetRegisterValue(_op1, mod);
break;
case "rcv":
if (GetOperandValue(_op1, programState) != 0)
{
programState.RaiseValueRecovered();
}
break;
case "jgz":
if (GetOperandValue(_op1, programState) > 0)
{
programState.RelativeJump(GetOperandValue(_op2, programState));
}
break;
}
}
private long GetOperandValue(string operand, Part1ProgramState programState)
{
return(char.IsLetter(operand[0])
? programState.GetRegisterValue(operand)
: long.Parse(operand));
}
