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Robust System Design - VLSI

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IFRA Hardware in Superscalar Processor<br />

FETCH<br />

DECODE<br />

DISPATCH<br />

ISSUE<br />

EXECUTE<br />

COMMIT<br />

Branch Predictor I-TLB I-Cache<br />

Fetch Queue ID assignment<br />

Pipeline Registers<br />

Decoders<br />

Pipeline Registers<br />

Reg Map Reg Free<br />

Pipeline Registers<br />

Instruction Window<br />

Pipeline Registers<br />

MUL 2xALU<br />

2xBr FPU 2xLSU<br />

Pipeline Registers<br />

Reg Rename<br />

Phys Regfile<br />

D-Cache<br />

D-TLB<br />

Reorder Buffer Reg Map<br />

Pipeline Registers<br />

Recorders<br />

Recorders<br />

Recorders<br />

Recorders<br />

Recorders<br />

Recorders<br />

Alpha 21264<br />

(open source)<br />

Part of<br />

scan chain<br />

No at-speed<br />

routing<br />

Post-Trigger<br />

Generator<br />

12

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