At the bottom of the register window the following abbreviations are used to show the current CPU flag values:
| Flag | Set Symbol | Clear Symbol |
| Overflow | OV | NV |
| Direction | DN | UP |
| Interrupt | EI | DI |
| Sign | NG | PL |
| Zero | ZR | NZ |
| Auxiliary carry | AC | NA |
| Parity | PE | PO |
| Carry | CY | NC |