Question: Explain how the mapping from an instruction code to a microinstruction address can be done by means of a read-only memory. What is the advantage

Explain how the mapping from an instruction code to a microinstruction address can be done by means of a read-only memory. What is the advantage of this method compared to the one in Fig. 7-3?

Fig. 7-3

Computer instruction: Mapping bits: Microinstruction address: Opcode 1011 0x x x x00 01 01100 address

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