public static (byte sum, byte carry) Add(byte a, byte b)
{
if (a != 0 && a != 1 || b != 0 && b != 1)
{
throw new ArgumentException("Only 0 and 1 are allowed.");
}
byte intValue = NAND.Eval(a, b);
return(NAND.Eval(NAND.Eval(a, intValue), NAND.Eval(intValue, b)), NAND.Eval(intValue, intValue));
}
static void Main(string[] args)
{
Console.WriteLine("\nTesting NAND Gate...\n");
Console.WriteLine(String.Format("TRUE NAND TRUE = {0}", NAND.Eval(true, true)));
Console.WriteLine(String.Format("TRUE NAND FALSE = {0}", NAND.Eval(true, false)));
Console.WriteLine(String.Format("FALSE NAND TRUE = {0}", NAND.Eval(false, true)));
Console.WriteLine(String.Format("FALSE NAND FALSE = {0}", NAND.Eval(false, false)));
Console.WriteLine("\nTesting Bit Adder...\n");
Console.WriteLine(bitAdd(0, 0));
Console.WriteLine(bitAdd(0, 1));
Console.WriteLine(bitAdd(1, 0));
Console.WriteLine(bitAdd(1, 1));
Console.WriteLine("\nTesting Byte Adder. Enter A and B to add them. Enter 0 for both inputs to exit.\n");
while (true)
{
Console.Write("\n A = ");
byte a = 0;
byte b = 0;
while (!byte.TryParse(Console.ReadLine(), out a))
{
Console.WriteLine("Please enter a valid byte.");
Console.Write(" A = ");
}
Console.Write(" B = ");
while (!byte.TryParse(Console.ReadLine(), out b))
{
Console.WriteLine("Please enter a valid byte.");
Console.Write(" B = ");
}
if (a == 0 && b == 0)
{
break;
}
var ret = ByteAdder.Add(a, b);
Console.WriteLine(string.Format("\nResult={0}\n", ret.carry != 0? byte.MaxValue + 1 + ret.sum: ret.sum));
}
}