In which addressing mode, the effective address of the operand is generated by…
2009
In which addressing mode, the effective address of the operand is generated by adding a constant value to the content of a register?
- A.
Absolute mode
- B.
Indirect mode
- C.
Immediate mode
- D.
Index mode
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Correct answer: D
The correct addressing mode is Index Mode. In this mode, the effective address of an operand is calculated by adding a constant value (displacement) to the content of a register, known as an index register. Other modes differ: Absolute mode uses direct memory addresses, Indirect mode accesses memory via pointers, and Immediate mode embeds the data directly in the instruction. Since the question describes adding a constant to a register's content, Index Mode is the correct answer.
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