After Instruction Dispatch by CRS (Clock 3)
| Status | Dst | Op1 | V | Op2 | V
0 | Empty | 0 | 0 | T | 25 | T
1 | Full | 1 | 0 | F | 30 | T
2 | Full | 2 | 1 | F | 50 | T
3 | Full | 3 | 2 | F | 1 | F
4 | Empty | 0 | 0 | F | 0 | F
After dispatch, tail updated to point at next FULL entry.