Clock 4: Execution of Instruction A

Shelving Buffers

| Status | Dst | Op1 | V | Op2 | V

0 | Empty | 0 | 0 | T | 25 | T

<=Tail

1 | Full | 1 | 25 | T | 30 | T

2 | Full | 2 | 1 | F | 50 | T

3 | Full | 3 | 2 | F | 1 | F

4 | Empty | 0 | 0 | F | 0 | F

Head =>

Instruction A result (25) produced by execution unit. This result is written to both the Reorder Buffer and CRS.

instr b

instr c

instr d

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