How do modern processors work ?

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Macro-op op Fusion load eax, [mem1] cmp eax, [mem2] load eax, [mem1] cmp eax, [mem2] jne label jne label store [mem3], ebx inc ecx store [mem3], ebx inc ecx dec0 dec1 dec2 dec3 load eax, [mem1] dec0 dec1 dec2 dec3 load eax, [mem1] cmp eax, [mem2] cmpjne eax, [mem2], label jne label store [mem3], ebx store [mem3], ebx inc ecx inc ecx 6
µ-ops Fusion if some instructions requires two operations => 2 µops sometimes they can be fused into 1 µop 1 record through the pipeline, split before execution units/memory Macro-ops ops fusion for different class of instruction 7
Page 1 and 2: How do modern processors work ? Und
Page 3 and 4: Microarchitecture 3
Page 5: The Front End 5
Page 9 and 10: Execution Units SSE instructions a
Page 11 and 12: Features of Memory System Prefetch
Page 13 and 14: Old solution 1. All loads are delay
Page 15 and 16: Conclusion Many features are alrea
Page 17: Thank you for your attention ! vask

How do modern processors work ?

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