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Out-of-Order Fetch Decode and Issue - Electrical Engineering and

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Page 1: Out-of-Order Fetch Decode and Issue - Electrical Engineering and

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Page 168: Out-of-Order Fetch Decode and Issue - Electrical Engineering and

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Execute/Bypass

Tag Bus

Execute/Bypass

Tag Bus

Result Bus

Wakeup/Select

Result Bus

R1 <- R20 - 10:

R20 <- R1 + R2:

Clock: Cycle # 1 Cycle # 2 Cycle # 3

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Page 170: Out-of-Order Fetch Decode and Issue - Electrical Engineering and

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Node State Priority Payload

R1 R63

ToFunctional

Unit

SelectLogic

G1SelectLogic

WakeupLogic

WakeupLogic

Checkpoint 1:

Checkpoint 63:

63

G63

63

Node State Priority Payload

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Page 279: Out-of-Order Fetch Decode and Issue - Electrical Engineering and

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Page 280: Out-of-Order Fetch Decode and Issue - Electrical Engineering and

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Page 282: Out-of-Order Fetch Decode and Issue - Electrical Engineering and

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