2. Consider a 16 -bit processor in which the following appears in main memory starting at location 500 : Assume that location 900 contains the value 1100 , location 1000 contains the value 1200 , location 1100 contains the value 1300 , and so on. The register R1 contains the value 900 . Determine the effective address and the operand to be loaded for the following address modes: 1) Immediate 2) Direct 3) Indirect 4) Register (R1 is the source register) 5) Register indirect ( R1 is the source register)