public static (byte sum, byte carry) Add(byte a, byte b)
{
byte result = 0;
byte carry = 0;
for (int i = 0; i < 8; i++)
{
var bitsum = BitAdder.Add((byte)(a >> i & 1), (byte)(b >> i & 1));
var adjBitsum = BitAdder.Add(bitsum.sum, carry);
carry = BitAdder.Add(bitsum.carry, adjBitsum.carry).sum;
result = (byte)(result | (adjBitsum.sum << i));
}
return(result, carry);
}
static string bitAdd(byte a, byte b)
{
var ret = BitAdder.Add(a, b);
return(string.Format("{0} + {1} = {2}", a, b, (ret.carry > 0 ? "1" : " ") + ret.sum));
}