Difficulty: Easy
Correct Answer: Correct
Explanation:
Introduction / Context:
The early to mid-1990s introduced superscalar execution to mainstream desktop CPUs. The Pentium (P5) microarchitecture is notable for its dual integer pipelines (U and V), enabling limited dual-issue under certain pairing rules. This question tests understanding of that capability.
Given Data / Assumptions:
Concept / Approach:
To validate the claim, recall that superscalar designs can fetch, decode, and (sometimes) execute more than one instruction per cycle. The Pentium is a dual-pipeline design that can, in favorable cases, retire two integer instructions per cycle.
Step-by-Step Solution:
Verification / Alternative check:
Vendor documentation and optimization manuals describe pairing rules, scheduling, and pipeline hazards, all consistent with dual-issue capability.
Why Other Options Are Wrong:
Common Pitfalls:
Assuming two-at-once always happens; ignoring dependencies and pairing restrictions; confusing decode bandwidth with execution.
Final Answer:
Correct
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