Explanation : In Indirect addressing mode the instruction does
not have the address of the data to be operated
on, but the instruction points where the address
is stored.
In immediate addressing mode the data is to be
used is immediately given in instruction it self;
so it deals with constant data.
I n Aut o decrement addressing mode, Before
determining the effective address, the value in
the base register is decremented by the size of
the data item which is to be accessed.