Get one wide byte of the program at 'ea'.
ea - linear address
returns: value of byte. If byte has no value then returns 0xFF
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.
To check if a byte has a value, use is_loaded(ea).
long get_wide_byte(long ea);
#define byte(ea) get_wide_byte(ea)