| u | Index Level | v |
| Syntax | |
| Category | BASIC Debugger |
| Type | Command |
| Description | used in the FlashBASIC debugger to move up the call stack. |
| Options | |
| See Also | s r $! FlashBASIC performance FlashBASIC Differences ?! debugger down |
| Example | |
| Warnings | |
| Compatibility | AP 6.0 FlashBASIC |
| u | Index Level | v |