Ok, using the patches given above by tbenning and the following keymap:
int ncd19c[] = {
255, 255, 255, 255, 255, 255, 255, 255, 38, 39, 40, 41, 43, 42, 52, 53,
54, 55, 49, 56, 24, 25, 26, 27, 29, 28, 10, 11, 12, 13, 15, 14,
21, 18, 16, 20, 17, 19, 35, 32, 30, 34, 31, 33, 36, 46, 44...