| 实际步序 |
| 显示 | ||
|
| 当前步序 |
| 上一步序 | |
| VB0 |
| VB1 |
| VB2 |
| 0 |
| 0 |
| 0 |
| 1 |
| 0 | → | 0 |
| 1 | → | 1 |
| 0 |
| 2 |
| 1 | → | 1 |
| 2 | → | 2 |
| 1 |