If the instruction involves reading from or writing to memory, the __________ register will be used to hold the address, and the __________ register will hold the data to be written or read. PC and DRIMAR and IRMAR and MDRMAR and DATA BusALU and DR
Question
If the instruction involves reading from or writing to memory, the __________ register will be used to hold the address, and the __________ register will hold the data to be written or read. PC and DRIMAR and IRMAR and MDRMAR and DATA BusALU and DR
Solution
The MAR (Memory Address Register) and MDR (Memory Data Register) will be used. The MAR holds the address that will be used to read from or write to memory. The MDR holds the data that will be written or has been read.
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