private void WriteInt64(Int64 value)
{
int offset;
byte[] buffer = GetBuffer(8, out offset);
buffer[offset + 0] = (byte)value;
value >>= 8;
buffer[offset + 1] = (byte)value;
value >>= 8;
buffer[offset + 2] = (byte)value;
value >>= 8;
buffer[offset + 3] = (byte)value;
value >>= 8;
buffer[offset + 4] = (byte)value;
value >>= 8;
buffer[offset + 5] = (byte)value;
value >>= 8;
buffer[offset + 6] = (byte)value;
value >>= 8;
buffer[offset + 7] = (byte)value;
Advance(8);
}
