GCSE OCR Fetch-decode-execute cycleWatch
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How detailed do I need to know the fetch-decode-execute cycle for GCSE with the OCR exam board? Do I need to know specifically what all of the registers do at each stage in the cycle or do I just need to know more generally what happens?
You need to know a basic set of registers:
Together with common CPU components and their algorithms:
Arithmetic Logic unit
Definitely understand how the fetch-decode-execute cycle is iterated several times to complete a high level command abstraction using the registers and components listed above.