Instruction B: ROB allocate, Op fetch, Rename, Issue add r8, r8, #30

Reorder Buffer

| Status | Dst | Value

0 | Issued_InValid | 8 | 0

1 | Issued_Valid | 8 | 0

2 | Empty | 0 | 0

3 | Empty | 0 | 0

4 | Empty | 0 | 0

Head =>

<=Tail

0: 0 | F

1: 0 | F

2: 0 | F

ROBMap | V

30: 0 | F

31: 0 | F

r8: 1 | T

r9: 0 | F

r10: 0 | F

Shelving Buffers

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

0 | Full | 0 | 0 | T | 25 | T

<=Tail

1 | Full | 1 | 0 | F | 30 | T

Head =>

2 | Empty | 0 | 0 | F | 0 | F

Old renamed value for r8 changed!

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