An instruction to be executed is in memory address 3412 - Scottish Highers Computing Science - Question 3 - 2019
Question 3
An instruction to be executed is in memory address 3412.
Complete the missing steps of the fetch-execute cycle shown below.
Step 1 The processor sets up the address... show full transcript
Worked Solution & Example Answer:An instruction to be executed is in memory address 3412 - Scottish Highers Computing Science - Question 3 - 2019
Step 1
Step 2 The processor activates the read line on the control bus.
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Answer
The processor activates the read line on the control bus, which signals the control unit to retrieve the instruction from the specified memory address.
Step 2
Step 3 An instruction is fetched from memory.
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Answer
An instruction is fetched from the memory location using the data bus, and this instruction is then stored in the instruction register for further processing.
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