← Back to systems

x86 Micro-Ops, Decode, And Fusion

6 questions · ~5 min · intermediate

Six questions on why x86 processors decompose instructions into micro-ops, how macro-op and micro-op fusion recombine them, and how the micro-op cache and MSROM fit into the decode pipeline.

0 / 6

Why do modern x86 processors decode CISC instructions into internal micro-ops instead of executing them directly?

Press 1 to 4 to pick an answer