Intro to Computing - How Hardware Works
Imagine a CPU that skips the decode step and tries to execute instructions immediately after fetching. What problem would most likely occur?
Imagine a CPU that skips the decode step and tries to execute instructions immediately after fetching. What problem would most likely occur?
hard📝 Application Q15 of 15
Step-by-Step Solution
Solution:
Step 1: Understand the role of decoding
Decoding translates fetched instructions into signals the CPU can understand and act on.Step 2: Predict the effect of skipping decode
If decoding is skipped, the CPU cannot understand instructions properly, leading to incorrect or meaningless execution.Final Answer:
The CPU would execute incorrect or meaningless instructions -> Option DQuick Check:
Decode step is essential for correct execution [OK]
Quick Trick: Decode translates instructions; skipping causes errors [OK]
Common Mistakes:
- Assuming skipping decode speeds up CPU without issues
- Thinking CPU just stores instructions if decode skipped
- Believing fetch alone is enough for execution
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