Digital Design --> Computer Organization And Design 5th edition Chapter ll

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1. Consider a 3 space addressing machine instruction: ADD $R1, A [RO], @B The first operand "A [SRO]" uses indexed addressing mode with RO as the index register and the second operand @B uses indirect addressing mode. A, B and Care memory addresses. How many memory accesses read and writes (by memory we mean only main memory not register) do we need