1 DC
2? dup_factor
3 E
3 D
3 L
4 B
4 H
4 D
5? program_type
6? length_modifier
7+ ,
7 %nominal_value

nominal_value (type extension B and D):

1 '
2!  + 
2?
2  - 
3 (SNAN)
3 (QNAN)
3 (NAN)
3 (INF)
3 (MAX)
3 (MIN)
3 (DMIN)
4 '

nominal_value (type extension H):

1 '
2!  + 
2?
2  - 
3 (MAX)
3 (MIN)
3 (DMIN)
4 '