public static bool Diff(uint[] x, int xOff, uint[] y, int yOff, uint[] z, int zOff)
{
bool flag = Nat128.Gte(x, xOff, y, yOff);
if (flag)
{
Nat128.Sub(x, xOff, y, yOff, z, zOff);
}
else
{
Nat128.Sub(y, yOff, x, xOff, z, zOff);
}
return(flag);
}
public static ulong[] FromBigInteger64(BigInteger x)
{
if (x.SignValue < 0 || x.BitLength > 128)
{
throw new ArgumentException();
}
ulong[] array = Nat128.Create64();
int num = 0;
while (x.SignValue != 0)
{
array[num++] = (ulong)x.LongValue;
x = x.ShiftRight(64);
}
return(array);
}
public static uint[] FromBigInteger(BigInteger x)
{
if (x.SignValue < 0 || x.BitLength > 128)
{
throw new ArgumentException();
}
uint[] array = Nat128.Create();
int num = 0;
while (x.SignValue != 0)
{
array[num++] = (uint)x.IntValue;
x = x.ShiftRight(32);
}
return(array);
}
