public void Test_255_plus_255()
{
// Arrange
var byteA = new Byte2(255);
var byteB = new Byte2(255);
// Act
var byteResult = Arithmetics.AddByte2(byteA, byteB, false);
// Assert
byteResult.ToInt32().Should().Be(510);
}
public void Test_0_plus_32767()
{
// Arrange
var byteA = new Byte2(0);
var byteB = new Byte2(32767);
// Act
var byteResult = Arithmetics.AddByte2(byteA, byteB, false);
// Assert
byteResult.ToInt32().Should().Be(32767);
}
public void Test_0_plus_0()
{
// Arrange
var a = new Byte2(0);
var b = new Byte2(0);
// Act
var byteResult = Arithmetics.AddByte2(a, b, false);
// Assert
byteResult.ToInt32().Should().Be(0);
}
public static Byte2 Do(InstructionDecoder.Operation operation,
Byte2 dataX,
Byte2 dataY)
{
var transformedDataX = UnaryArithmeticLogicUnit.Do(operation.zx, operation.nx, dataX);
var transformedDataY = UnaryArithmeticLogicUnit.Do(operation.zy, operation.ny, dataY);
var and = Gates.And16(transformedDataX, transformedDataY);
var add = Arithmetics.AddByte2(transformedDataX, transformedDataY, false);
var selected = Select16.Do(operation.Function, add.Low, and);
var inverted = Gates.Invert16(selected);
var output = Select16.Do(operation.NegateOutput, inverted, selected);
return(output);
}