| b10 | b16 | field | type | size | bitfield | comments |
| 0 | 0 | splf | short | :4 | 000F | spelling result flag: |
| 2 | maybe dirty: check if have time | |||||
| 3 | dirty: needs to be checked | |||||
| 4 | recently edited | |||||
| 5 | cannot be checked | |||||
| 7 | clean: checked and error-free | |||||
| 10 | error | |||||
| 11 | repeated word error | |||||
| 12 | unknown word error | |||||
| fError | short | :1 | 0010 | set to 1 when SPLS marks an error | ||
| :11 | FFE0 | reserved |