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7. Suppose the tollowmg Mailbox Address 15 16 40 41 C Instructions are föund in the given locations in memory. Mnemonic Code LDA 40 ADD...

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7". Suppose the following LMC instructions are found in the given locations in memory. Mnemonic Code LDA 40
ADD 41 723
021 a Show the CPU Fetch/Execute cycle steps and the values of Instruction Register (IR), the
Program Counter (PC), the Memory Address Register (MAR), the Memory Data Register (MDR), and Accumulator (A) when the instruction in address 15 is completed. [10 marks] FIE cycle Register Values b Show the CPU FfE cycle steps and the contents of each register as each step of the FE cycle is
performed for instruction 16. [30 marks]

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