private void FoldLabels()
{
for (int i = 0; i < oldInstructions.Length; i++)
{
if (oldInstructions[i] is JumpIfLessThanOrEqual)
{
JumpIfLessThanOrEqual instr = (JumpIfLessThanOrEqual)oldInstructions[i];
string label = instr.labelName;
int index = new List <Instruction>(oldInstructions).FindIndex(
instruction => (instruction as Label) != null &&
(instruction as Label).label == label);
instr.position = index;
newInstructions.Add(instr);
}
else if (oldInstructions[i] is JumpIfFalse)
{
JumpIfFalse instr = (JumpIfFalse)oldInstructions[i];
string label = instr.labelName;
int index = new List <Instruction>(oldInstructions).FindIndex(
instruction => (instruction as Label) != null &&
(instruction as Label).label == label);
instr.position = index;
newInstructions.Add(instr);
}
else
{
newInstructions.Add(oldInstructions[i]);
}
}
}
private static int[] Compute(int[] input)
{
int i = 0;
int opcode = -1;
while (i < input.Length && opcode != 99)
{
Instruction instruction = new NullInstruction(input, i);
opcode = input[i] % 100;
var fullOpCode = input[i];
switch (opcode)
{
case 99: break;
case 1:
instruction = new Add(input, i);
break;
case 2:
instruction = new Multiply(input, i);
break;
case 3:
instruction = new Input(input, i);
break;
case 4:
instruction = new Output(input, i);
break;
case 5:
instruction = new JumpIfTrue(input, i);
break;
case 6:
instruction = new JumpIfFalse(input, i);
break;
case 7:
instruction = new LessThan(input, i);
break;
case 8:
instruction = new Equal(input, i);
break;
default: throw new ArgumentException();
}
(var newInput, var instructionPointer) = instruction.Compute();
i = instructionPointer;
input = newInput;
}
return(input);
}
private IOpcode GetOpCodeFromCurrentPointer()
{
var opcodeValue = Convert.ToUInt32(new string(LocalComputerMemory.PointerValue().ToString().TakeLast(2).ToArray()));
IOpcode opcode = null;
switch ((OpCode)opcodeValue)
{
case OpCode.Adds:
opcode = new Add();
break;
case OpCode.Multiplie:
opcode = new Multiply();
break;
case OpCode.Inputstuff:
opcode = new Input();
break;
case OpCode.OutputStuff:
opcode = new Output();
break;
case OpCode.JumpIfTrue:
opcode = new JumpIfTrue();
break;
case OpCode.JumpIfFalse:
opcode = new JumpIfFalse();
break;
case OpCode.isLessThen:
opcode = new LessThan();
break;
case OpCode.isEqual:
opcode = new Equal();
break;
case OpCode.RelativeBase:
opcode = new RelativeBase();
break;
case OpCode.Exit:
opcode = new Exit();
break;
default:
break;
}
return(opcode);
}
protected JumpIfFalseTests()
{
TestedInstruction = new JumpIfFalse();
}
public void Visit(JumpIfFalse code)
{
AddReference(code.Reference);
AddLabel(code.Label);
}
