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The effective address of the following instruction is MUL 5(R1,R2).

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The effective address of the following instruction is MUL 5(R1,R2).

(a) 5+R1+R2

(b) 5+(R1*R2)

(c) 5+[R1]+[R2]

(d) 5*([R1]+[R2])

The question was asked during an interview.

The question is from Addressing Modes in chapter Machine Instructions and Programs of Computer Architecture

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The correct option is (c) 5+[R1]+[R2]

The best I can explain: The addressing mode used is base with offset and index.

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