Computer arch

Consider a processor that includes a base with any addressing mode. Let stored in the program counter be designated by the symbol X1. The X1 has an address part (operand reference) X2. The operand needed to instruction is stored in the memory word with address X3. An index register value X4. Currently the base contains X5. What is the relationship between quantities if the addressing mode of the instruction is: a) Direct b) Indirect c) PC relative d) Indexed Consider a processor that includes a base with any addressing mode. Let stored in the program counter be designated by the symbol X1. The X1 has an address part (operand reference) X2. The operand needed to instruction is stored in the memory word with address X3. An index register value X4. Currently the base contains X5. What is the relationship between quantities if the addressing mode of the instruction is: a) Direct b) Indirect c) PC relative d) Indexed