public (bool equal, bool ALarger, bool output) AreEqual(bool a, bool b, bool aboveBitIsEqual,
bool aboveBitALarger)
{
var unequal = _xOr.Apply(a, b);
var equal = _not.Apply(unequal);
var equalAndAboveBitEqual = _and.Apply(equal, aboveBitIsEqual);
var aLarger = _and.Apply(aboveBitIsEqual, unequal, a);
var aLargerOrAboveALarger = _or.Apply(aLarger, aboveBitALarger);
return(equalAndAboveBitEqual, aLargerOrAboveALarger, unequal);
}
public (bool Sum, bool CarryOut) Add(bool a, bool b, bool carryIn)
{
var aXorB = _xOr.Apply(a, b);
var sum = _xOr.Apply(aXorB, carryIn);
var aAndB = _and.Apply(a, b);
var aXorBAndCarryIn = _and.Apply(aXorB, carryIn);
var carryOut = _or.Apply(aAndB, aXorBAndCarryIn);
return(sum, carryOut);
}
public StepperOutput Step(bool clk, bool reset)
{
var notReset = _not.Apply(reset);
var notClk = _not.Apply(clk);
var resetOrNotClk = _or.Apply(notClk, reset);
var clkOrReset = _or.Apply(clk, reset);
var m0 = _memoryGates[0].Apply(notReset, resetOrNotClk);
var m1 = _memoryGates[1].Apply(m0, clkOrReset);
var m2 = _memoryGates[2].Apply(m1, resetOrNotClk);
var m3 = _memoryGates[3].Apply(m2, clkOrReset);
var m4 = _memoryGates[4].Apply(m3, resetOrNotClk);
var m5 = _memoryGates[5].Apply(m4, clkOrReset);
var m6 = _memoryGates[6].Apply(m5, resetOrNotClk);
var m7 = _memoryGates[7].Apply(m6, clkOrReset);
var m8 = _memoryGates[8].Apply(m7, resetOrNotClk);
var m9 = _memoryGates[9].Apply(m8, clkOrReset);
var m10 = _memoryGates[10].Apply(m9, resetOrNotClk);
var m11 = _memoryGates[11].Apply(m10, clkOrReset);
var notM1 = _not.Apply(m1);
var notM3 = _not.Apply(m3);
var notM5 = _not.Apply(m5);
var notM7 = _not.Apply(m7);
var notM9 = _not.Apply(m9);
var notM11 = _not.Apply(m11);
var step1 = _or.Apply(reset, notM1);
var step2 = _and.Apply(m1, notM3);
var step3 = _and.Apply(m3, notM5);
var step4 = _and.Apply(m5, notM7);
var step5 = _and.Apply(m7, notM9);
var step6 = _and.Apply(m9, notM11);
_step7 = m11;
var stepperArray = new[] { step1, step2, step3, step4, step5, step6, _step7 };
return(new StepperOutput(stepperArray));
}
public IByte Apply(params IByte[] input)
{
var groups = new List <List <bool> >();
for (var i = 0; i < input[0].Count; i++)
{
var tempList = input.Select(t => t[i]).ToList();
groups.Add(tempList);
}
var result = groups.Select(s => _or.Apply(s.ToArray())).ToArray();
return(_byteFactory.Create(result));
}
public IByte Apply(IByte input, bool bus1)
{
Input = input;
Set = bus1;
var one = input[0];
var rest = input.Skip(1).ToArray();
var notBus1 = _not.Apply(bus1);
var notAndRest = rest.Select(s => _and.Apply(s, notBus1)).ToList();
var orOneAndBus1 = _or.Apply(one, bus1);
var output = notAndRest.Prepend(orOneAndBus1).ToArray();
Output = _byteFactory.Create(output);
_updateWire(Output);
return(Output);
}
private void UpdateLoadStep4()
{
// setup
var step43X80 = _and.Apply(Step4, PinStates.ThreeXEight[0]);
var step43X81 = _and.Apply(Step4, PinStates.ThreeXEight[1]);
var newState = _or.Apply(step43X80, step43X81);
// enables
PinStates.RegA.Enable = NewPinState(PinStates.RegA.Enable, newState);
// sets
PinStates.Mar = NewPinState(PinStates.Mar, ClkSAnd(newState));
}
public AluOutput Apply(IByte a, IByte b, bool carryIn, Op op)
{
var opDecoder = _byteDecoder.Decode(op.One, op.Two, op.Three);
var xOr = _byteXOr.Apply(a, b);
var or = _byteOr.Apply(a, b);
var and = _byteAnd.Apply(a, b);
var not = _inverter.Invert(a);
var shiftLeft = _leftByteShifter.Shift(a, carryIn);
var shiftRight = _rightByteShifter.Shift(a, carryIn);
var adder = _byteAdder.Add(a, b, carryIn);
var comparatorResult = _byteComparator.AreEqual(a, b, true, false);
var enabledAdd = _byteEnabler.Apply(adder.Sum, opDecoder[0]);
var enabledShiftRight = _byteEnabler.Apply(shiftRight.Ouput, opDecoder[1]);
var enabledShiftLeft = _byteEnabler.Apply(shiftLeft.Ouput, opDecoder[2]);
var enabledNot = _byteEnabler.Apply(not, opDecoder[3]);
var enabledAnd = _byteEnabler.Apply(and, opDecoder[4]);
var enabledOr = _byteEnabler.Apply(or, opDecoder[5]);
var enabledXOr = _byteEnabler.Apply(xOr, opDecoder[6]);
var enabledComparator = _byteEnabler.Apply(comparatorResult.output, opDecoder[7]);
var carryOutAdd = _and.Apply(adder.CarryOut, opDecoder[0]);
var carryOutShiftRight = _and.Apply(shiftRight.ShiftOut, opDecoder[1]);
var carryOutShiftLeft = _and.Apply(shiftLeft.ShiftOut, opDecoder[2]);
var carryOut = _or.Apply(carryOutAdd, carryOutShiftRight, carryOutShiftLeft);
var output = _aluWire.Apply(enabledAdd, enabledShiftLeft, enabledShiftRight, enabledNot, enabledAnd,
enabledOr, enabledXOr, enabledComparator);
var zero = _isZeroGate.IsZero(output);
var aluOutput = new AluOutput
{
ALarger = comparatorResult.ALarger,
CarryOut = carryOut,
Equal = comparatorResult.equal,
Output = output,
Zero = zero
};
_updateFlags(new Caez {
C = aluOutput.CarryOut, A = aluOutput.ALarger, E = aluOutput.Equal, Z = aluOutput.Zero
});
_updateAcc(aluOutput.Output);
return(aluOutput);
}
public bool IsZero(IByte input)
{
var orRes = _or.Apply(input.ToArray());
return(_not.Apply(orRes));
}