Get one wide word (2 'byte') of the program at 'ea'.
ea - linear address
returns: the value of the word. If word has no value then returns 0xFFFF
Some processors may access more than 8bit quantity at an address.
These processors have 32-bit byte organization from the IDA's point of view.
This function takes into account order of bytes specified in inf.is_be()
long get_wide_word(long ea);
#define word(ea) get_wide_word(ea)