(none) The address contains a value that is a single bit having a value of either
0 or 1.
W The address contains a value that is a word and has a value between 0
and 65535.
D The address contains a value that is a double word and has a value
between 0 and 4294967295.
F The address contains a value that is in floating point format and has a
value between 0 and 65535.