TACS_NUM
set_bit(TACS_NUM, &board->status);
clear_bit(TACS_NUM, &board->status);
(test_bit(TACS_NUM, &board->status) &&
(test_bit(TACS_NUM, &board->status) &&
(test_bit(TACS_NUM, &board->status) &&
set_bit(TACS_NUM, &board->status);
clear_bit(TACS_NUM, &board->status);
set_bit(TACS_NUM, &board->status);
clear_bit(TACS_NUM, &board->status);
(test_bit(TACS_NUM, &board->status) &&
set_bit(TACS_NUM, &board->status);
clear_bit(TACS_NUM, &board->status);
TACS = (1 << TACS_NUM), /* GPIB interface is addressed as Talker */