public void ParseInstruction_Add()
{
// Arrange
var addPositionPosition = 0001;
var addImmediatePosition = 0101;
var addPositionImmediate = 1001;
var addImmediateImmediate = 1101;
// Act & Assert
var instruction = InstructionParser.ParseInstruction(addPositionPosition);
Assert.AreEqual(Operation.Add, instruction.Operation);
CollectionAssert.AreEqual(new Mode[] { Mode.Position, Mode.Position, Mode.Position }, instruction.Mode);
instruction = InstructionParser.ParseInstruction(addImmediatePosition);
Assert.AreEqual(Operation.Add, instruction.Operation);
CollectionAssert.AreEqual(new Mode[] { Mode.Immediate, Mode.Position, Mode.Position }, instruction.Mode);
instruction = InstructionParser.ParseInstruction(addPositionImmediate);
Assert.AreEqual(Operation.Add, instruction.Operation);
CollectionAssert.AreEqual(new Mode[] { Mode.Position, Mode.Immediate, Mode.Position }, instruction.Mode);
instruction = InstructionParser.ParseInstruction(addImmediateImmediate);
Assert.AreEqual(Operation.Add, instruction.Operation);
CollectionAssert.AreEqual(new Mode[] { Mode.Immediate, Mode.Immediate, Mode.Position }, instruction.Mode);
}
public void ParseInstruction_Multiply()
{
// Arrange
var multiplyPositionPosition = 0002;
var multiplyImmediatePosition = 0102;
var multiplyPositionImmediate = 1002;
var multiplyImmediateImmediate = 1102;
// Act & Assert
var instruction = InstructionParser.ParseInstruction(multiplyPositionPosition);
Assert.AreEqual(Operation.Multiply, instruction.Operation);
CollectionAssert.AreEqual(new Mode[] { Mode.Position, Mode.Position, Mode.Position }, instruction.Mode);
instruction = InstructionParser.ParseInstruction(multiplyImmediatePosition);
Assert.AreEqual(Operation.Multiply, instruction.Operation);
CollectionAssert.AreEqual(new Mode[] { Mode.Immediate, Mode.Position, Mode.Position }, instruction.Mode);
instruction = InstructionParser.ParseInstruction(multiplyPositionImmediate);
Assert.AreEqual(Operation.Multiply, instruction.Operation);
CollectionAssert.AreEqual(new Mode[] { Mode.Position, Mode.Immediate, Mode.Position }, instruction.Mode);
instruction = InstructionParser.ParseInstruction(multiplyImmediateImmediate);
Assert.AreEqual(Operation.Multiply, instruction.Operation);
CollectionAssert.AreEqual(new Mode[] { Mode.Immediate, Mode.Immediate, Mode.Position }, instruction.Mode);
}
public void GetInstruction_ShouldMatchParseInstruction()
{
foreach (var inst in InstructionParser.KnownInstructions.Keys)
{
var known = InstructionParser.GetInstruction(inst);
var parsed = InstructionParser.ParseInstruction(inst);
Assert.AreEqual(known.Operation, parsed.Operation);
CollectionAssert.AreEqual(known.Mode, parsed.Mode, $"Missmatch for instruction [{inst}]");
}
}
private Instruction GetCurrentInstruction()
{
return(InstructionParser.GetInstruction((int)memory[instructionPointer]));
}