Indirect addressing mode - assembly language:
The Indirect addressing mode and the address field of the instruction refers to the address of a word in memory, which in turn consist the full length address of the operand. The benefit of this mode is that for the word length of N, an address space of 2N may be addressed. It disadvantage is that instruction execution need 2 memory reference to fetch the operand Multilevel or cascaded indirect addressing may also be used.